diff options
Diffstat (limited to 'lib/libucsi/dvb')
102 files changed, 12246 insertions, 0 deletions
diff --git a/lib/libucsi/dvb/Makefile b/lib/libucsi/dvb/Makefile new file mode 100644 index 0000000..78876dc --- /dev/null +++ b/lib/libucsi/dvb/Makefile @@ -0,0 +1,121 @@ +# Makefile for linuxtv.org dvb-apps/lib/libucsi/dvb + +.PHONY: sub-error-dvb + +sub-error-dvb: + $(error You can't use this makefile directly.) + +ifneq ($(lib_name),) + +objects += dvb/bat_section.o \ + dvb/dit_section.o \ + dvb/eit_section.o \ + dvb/int_section.o \ + dvb/nit_section.o \ + dvb/rst_section.o \ + dvb/sdt_section.o \ + dvb/sit_section.o \ + dvb/st_section.o \ + dvb/tdt_section.o \ + dvb/tot_section.o \ + dvb/tva_container_section.o \ + dvb/types.o + +sub-install += dvb + +else + +includes = ac3_descriptor.h \ + adaptation_field_data_descriptor.h \ + ait_application_descriptor.h \ + ait_application_icons_descriptor.h \ + ait_application_name_descriptor.h \ + ait_external_application_authorisation_descriptor.h \ + ancillary_data_descriptor.h \ + announcement_support_descriptor.h \ + application_signalling_descriptor.h \ + bat_section.h \ + bouquet_name_descriptor.h \ + ca_identifier_descriptor.h \ + cable_delivery_descriptor.h \ + cell_frequency_link_descriptor.h \ + cell_list_descriptor.h \ + component_descriptor.h \ + content_descriptor.h \ + content_identifier_descriptor.h \ + country_availability_descriptor.h \ + data_broadcast_descriptor.h \ + data_broadcast_id_descriptor.h \ + default_authority_descriptor.h \ + descriptor.h \ + dit_section.h \ + dsng_descriptor.h \ + eit_section.h \ + extended_event_descriptor.h \ + frequency_list_descriptor.h \ + int_section.h \ + ip_mac_platform_name_descriptor.h \ + ip_mac_platform_provider_name_descriptor.h \ + ip_mac_stream_location_descriptor.h \ + linkage_descriptor.h \ + local_time_offset_descriptor.h \ + mhp_data_broadcast_id_descriptor.h \ + mosaic_descriptor.h \ + multilingual_bouquet_name_descriptor.h \ + multilingual_component_descriptor.h \ + multilingual_network_name_descriptor.h \ + multilingual_service_name_descriptor.h \ + network_name_descriptor.h \ + nit_section.h \ + nvod_reference_descriptor.h \ + parental_rating_descriptor.h \ + partial_transport_stream_descriptor.h \ + pdc_descriptor.h \ + private_data_specifier_descriptor.h \ + related_content_descriptor.h \ + rnt_rar_over_dvb_stream_descriptor.h \ + rnt_rar_over_ip_descriptor.h \ + rnt_rnt_scan_descriptor.h \ + rst_section.h \ + s2_satellite_delivery_descriptor.h \ + satellite_delivery_descriptor.h \ + scrambling_descriptor.h \ + sdt_section.h \ + section.h \ + service_availability_descriptor.h \ + service_descriptor.h \ + service_identifier_descriptor.h \ + service_list_descriptor.h \ + service_move_descriptor.h \ + short_event_descriptor.h \ + short_smoothing_buffer_descriptor.h \ + sit_section.h \ + st_section.h \ + stream_identifier_descriptor.h \ + stuffing_descriptor.h \ + subtitling_descriptor.h \ + target_ip_address_descriptor.h \ + target_ipv6_address_descriptor.h \ + target_ip_slash_descriptor.h \ + target_ip_source_slash_descriptor.h \ + target_ipv6_slash_descriptor.h \ + target_ipv6_source_slash_descriptor.h \ + tdt_section.h \ + telephone_descriptor.h \ + teletext_descriptor.h \ + terrestrial_delivery_descriptor.h \ + time_shifted_event_descriptor.h \ + time_shifted_service_descriptor.h \ + tot_section.h \ + transport_stream_descriptor.h \ + tva_container_section.h \ + tva_id_descriptor.h \ + types.h \ + vbi_data_descriptor.h \ + vbi_teletext_descriptor.h + +include ../../../Make.rules + +lib_name = libucsi/dvb + +endif diff --git a/lib/libucsi/dvb/ac3_descriptor.h b/lib/libucsi/dvb/ac3_descriptor.h new file mode 100644 index 0000000..0a2a5cd --- /dev/null +++ b/lib/libucsi/dvb/ac3_descriptor.h @@ -0,0 +1,88 @@ +/* + * section and descriptor parser + * + * Copyright (C) 2005 Kenneth Aafloy (kenneth@linuxtv.org) + * Copyright (C) 2005 Andrew de Quincey (adq_dvb@lidskialf.net) + * + * This library is free software; you can redistribute it and/or + * modify it under the terms of the GNU Lesser General Public + * License as published by the Free Software Foundation; either + * version 2.1 of the License, or (at your option) any later version. + * + * This library is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * Lesser General Public License for more details. + * + * You should have received a copy of the GNU Lesser General Public + * License along with this library; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA + */ + +#ifndef _UCSI_DVB_AC3_DESCRIPTOR +#define _UCSI_DVB_AC3_DESCRIPTOR 1 + +#ifdef __cplusplus +extern "C" +{ +#endif + +#include <libucsi/descriptor.h> +#include <libucsi/endianops.h> + +/** + * dvb_ac3_descriptor structure. + */ +struct dvb_ac3_descriptor { + struct descriptor d; + + EBIT5(uint8_t ac3_type_flag : 1; , + uint8_t bsid_flag : 1; , + uint8_t mainid_flag : 1; , + uint8_t asvc_flag : 1; , + uint8_t reserved : 4; ); + /* uint8_t additional_info[] */ +} __ucsi_packed; + +/** + * Process a dvb_ac3_descriptor. + * + * @param d Generic descriptor structure. + * @return dvb_ac3_descriptor pointer, or NULL on error. + */ +static inline struct dvb_ac3_descriptor* + dvb_ac3_descriptor_codec(struct descriptor* d) +{ + if (d->len < (sizeof(struct dvb_ac3_descriptor) - 2)) + return NULL; + + return (struct dvb_ac3_descriptor*) d; +} + +/** + * Retrieve pointer to additional_info field of a dvb_ac3_descriptor. + * + * @param d dvb_ac3_descriptor pointer. + * @return Pointer to additional_info field. + */ +static inline uint8_t *dvb_ac3_descriptor_additional_info(struct dvb_ac3_descriptor *d) +{ + return (uint8_t *) d + sizeof(struct dvb_ac3_descriptor); +} + +/** + * Determine length of additional_info field of a dvb_ac3_descriptor. + * + * @param d dvb_ac3_descriptor pointer. + * @return Length of field in bytes. + */ +static inline int dvb_ac3_descriptor_additional_info_length(struct dvb_ac3_descriptor *d) +{ + return d->d.len - 1; +} + +#ifdef __cplusplus +} +#endif + +#endif diff --git a/lib/libucsi/dvb/adaptation_field_data_descriptor.h b/lib/libucsi/dvb/adaptation_field_data_descriptor.h new file mode 100644 index 0000000..b207054 --- /dev/null +++ b/lib/libucsi/dvb/adaptation_field_data_descriptor.h @@ -0,0 +1,62 @@ +/* + * section and descriptor parser + * + * Copyright (C) 2005 Kenneth Aafloy (kenneth@linuxtv.org) + * Copyright (C) 2005 Andrew de Quincey (adq_dvb@lidskialf.net) + * + * This library is free software; you can redistribute it and/or + * modify it under the terms of the GNU Lesser General Public + * License as published by the Free Software Foundation; either + * version 2.1 of the License, or (at your option) any later version. + * + * This library is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * Lesser General Public License for more details. + * + * You should have received a copy of the GNU Lesser General Public + * License along with this library; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA + */ + +#ifndef _UCSI_DVB_ADAPTATION_FIELD_DATA_DESCRIPTOR +#define _UCSI_DVB_ADAPTATION_FIELD_DATA_DESCRIPTOR 1 + +#ifdef __cplusplus +extern "C" +{ +#endif + +#include <libucsi/descriptor.h> +#include <libucsi/endianops.h> + +/** + * dvb_adaptation_field_data_descriptor structure. + */ +struct dvb_adaptation_field_data_descriptor { + struct descriptor d; + + EBIT2(uint8_t reserved : 7; , + uint8_t announcement_switching_data : 1; ); +} __ucsi_packed; + +/** + * Process a dvb_adaptation_field_data_descriptor. + * + * @param d Generic descriptor structure. + * @return Pointer to dvb_adaptation_field_data_descriptor, or NULL on error. + */ +static inline struct dvb_adaptation_field_data_descriptor* + dvb_adaptation_field_data_descriptor_codec(struct descriptor* d) +{ + if (d->len != (sizeof(struct dvb_adaptation_field_data_descriptor) - 2)) + return NULL; + + return (struct dvb_adaptation_field_data_descriptor*) d; +} + +#ifdef __cplusplus +} +#endif + +#endif diff --git a/lib/libucsi/dvb/ait_application_descriptor.h b/lib/libucsi/dvb/ait_application_descriptor.h new file mode 100644 index 0000000..95fb7e3 --- /dev/null +++ b/lib/libucsi/dvb/ait_application_descriptor.h @@ -0,0 +1,204 @@ +/* + * section and descriptor parser + * + * Copyright (C) 2005 Kenneth Aafloy (kenneth@linuxtv.org) + * Copyright (C) 2005 Andrew de Quincey (adq_dvb@lidskialf.net) + * + * This library is free software; you can redistribute it and/or + * modify it under the terms of the GNU Lesser General Public + * License as published by the Free Software Foundation; either + * version 2.1 of the License, or (at your option) any later version. + * + * This library is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * Lesser General Public License for more details. + * + * You should have received a copy of the GNU Lesser General Public + * License along with this library; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA + */ + +#ifndef _UCSI_DVB_AIT_APPLICATION_DESCRIPTOR +#define _UCSI_DVB_AIT_APPLICATION_DESCRIPTOR 1 + +#ifdef __cplusplus +extern "C" +{ +#endif + +#include <libucsi/descriptor.h> +#include <libucsi/endianops.h> + +/** + * Possible values for the visibility field. + */ +enum { + AVB_AIT_APPLICATION_VISIBILITY_HIDDEN = 0x00, + AVB_AIT_APPLICATION_VISIBILITY_APPSONLY = 0x01, + AVB_AIT_APPLICATION_VISIBILITY_VISIBLE = 0x03, +}; + +/** + * dvb_ait_application_descriptor structure. + */ +struct dvb_ait_application_descriptor { + struct descriptor d; + + uint8_t application_profiles_length; + /* struct dvb_ait_application_profile profiles [] */ + /* struct dvb_ait_application_descriptor_part2 part2 */ +} __ucsi_packed; + +/** + * An entry in the profiles field of a dvb_ait_application_descriptor. + */ +struct dvb_ait_application_profile { + uint16_t application_profile; + uint8_t version_major; + uint8_t version_minor; + uint8_t version_micro; +} __ucsi_packed; + +/** + * Second part of a dvb_ait_application_descriptor structure. + */ +struct dvb_ait_application_descriptor_part2 { + EBIT3(uint8_t service_bound_flag : 1; , + uint8_t visibility : 2; , + uint8_t reserved : 5; ); + uint8_t application_priority; + /* uint8_t transport_protocol_label[] */ +} __ucsi_packed; + +/** + * Process a dvb_ait_application_descriptor. + * + * @param d Generic descriptor pointer. + * @return dvb_ait_application_descriptor pointer, or NULL on error. + */ +static inline struct dvb_ait_application_descriptor* + dvb_ait_application_descriptor_codec(struct descriptor* d) +{ + uint32_t pos = 0; + uint32_t pos2 = 0; + uint32_t len = d->len + 2; + uint8_t* buf = (uint8_t*) d; + struct dvb_ait_application_descriptor *ret = + (struct dvb_ait_application_descriptor*) d; + + if (len < sizeof(struct dvb_ait_application_descriptor)) + return NULL; + + if (len < (sizeof(struct dvb_ait_application_descriptor) + ret->application_profiles_length)) + return NULL; + + if (ret->application_profiles_length % sizeof(struct dvb_ait_application_profile)) + return NULL; + + pos += sizeof(struct dvb_ait_application_descriptor); + pos2 = 0; + while(pos2 < ret->application_profiles_length) { + bswap16(buf + pos + pos2); + pos2 += sizeof(struct dvb_ait_application_descriptor); + } + pos += pos2; + + if (len < (pos + sizeof(struct dvb_ait_application_descriptor_part2))) + return NULL; + + return ret; +} + +/** + * Iterator for the profiles field of a dvb_ait_application_descriptor. + * + * @param d dvb_ait_application_descriptor pointer. + * @param pos Variable containing a pointer to the current dvb_ait_application_profile. + */ +#define dvb_ait_application_descriptor_profiles_for_each(d, pos) \ + for ((pos) = dvb_ait_application_descriptor_profiles_first(d); \ + (pos); \ + (pos) = dvb_ait_application_descriptor_profiles_next(d, pos)) + +/** + * Accessor for the part2 field of a dvb_ait_application_descriptor. + * + * @param d dvb_ait_application_descriptor pointer. + * @return dvb_ait_application_descriptor_part2 pointer. + */ +static inline struct dvb_ait_application_descriptor_part2* + dvb_ait_application_descriptor_part2(struct dvb_ait_application_descriptor* d) +{ + return (struct dvb_ait_application_descriptor_part2*) + ((uint8_t*) d + + sizeof(struct dvb_ait_application_descriptor) + + d->application_profiles_length); +} + +/** + * Accessor for the transport_protocol_label field of a dvb_ait_application_descriptor_part2. + * + * @param d dvb_ait_application_descriptor_part2 pointer. + * @return Pointer to the field. + */ +static inline uint8_t* + dvb_ait_application_descriptor_part2_transport_protocol_label(struct dvb_ait_application_descriptor_part2* d) +{ + return (uint8_t*) d + + sizeof(struct dvb_ait_application_descriptor_part2); +} + +/** + * Calculate the number of bytes in the transport_protocol_label field of a dvb_ait_application_descriptor_part2. + * + * @param d dvb_ait_application_descriptor pointer. + * @param part2 dvb_ait_application_descriptor_part2 pointer. + * @return Number of bytes. + */ +static inline int + dvb_ait_application_descriptor_part2_transport_protocol_label_length(struct dvb_ait_application_descriptor *d, + struct dvb_ait_application_descriptor_part2* part2) +{ + uint8_t *ptr = (uint8_t*) part2 + sizeof(struct dvb_ait_application_descriptor_part2); + uint8_t *end = (uint8_t*) d + d->d.len + 2; + + return (int) (end - ptr); +} + + + + + + +/******************************** PRIVATE CODE ********************************/ +static inline struct dvb_ait_application_profile* + dvb_ait_application_descriptor_profiles_first(struct dvb_ait_application_descriptor *d) +{ + if (d->application_profiles_length == 0) + return NULL; + + return (struct dvb_ait_application_profile *) + ((uint8_t*) d + sizeof(struct dvb_ait_application_descriptor)); +} + +static inline struct dvb_ait_application_profile* + dvb_ait_application_descriptor_profiles_next(struct dvb_ait_application_descriptor *d, + struct dvb_ait_application_profile *pos) +{ + uint8_t *end = (uint8_t*) d + + sizeof(struct dvb_ait_application_descriptor) + + d->application_profiles_length; + uint8_t *next = (uint8_t *) pos + sizeof(struct dvb_ait_application_profile); + + if (next >= end) + return NULL; + + return (struct dvb_ait_application_profile *) next; +} + +#ifdef __cplusplus +} +#endif + +#endif diff --git a/lib/libucsi/dvb/ait_application_icons_descriptor.h b/lib/libucsi/dvb/ait_application_icons_descriptor.h new file mode 100644 index 0000000..431cd6c --- /dev/null +++ b/lib/libucsi/dvb/ait_application_icons_descriptor.h @@ -0,0 +1,157 @@ +/* + * section and descriptor parser + * + * Copyright (C) 2005 Kenneth Aafloy (kenneth@linuxtv.org) + * Copyright (C) 2005 Andrew de Quincey (adq_dvb@lidskialf.net) + * + * This library is free software; you can redistribute it and/or + * modify it under the terms of the GNU Lesser General Public + * License as published by the Free Software Foundation; either + * version 2.1 of the License, or (at your option) any later version. + * + * This library is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * Lesser General Public License for more details. + * + * You should have received a copy of the GNU Lesser General Public + * License along with this library; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA + */ + +#ifndef _UCSI_DVB_AIT_APPLICATION_ICONS_DESCRIPTOR +#define _UCSI_DVB_AIT_APPLICATION_ICONS_DESCRIPTOR 1 + +#ifdef __cplusplus +extern "C" +{ +#endif + +#include <libucsi/descriptor.h> +#include <libucsi/endianops.h> +#include <libucsi/types.h> + +/** + * Possible values for the icon_flags field. + */ +enum { + AIT_APPLICATION_ICON_FLAG_32_32 = 0x001, + AIT_APPLICATION_ICON_FLAG_32_32_43 = 0x002, + AIT_APPLICATION_ICON_FLAG_24_32_169 = 0x004, + + AIT_APPLICATION_ICON_FLAG_64_64 = 0x008, + AIT_APPLICATION_ICON_FLAG_64_64_43 = 0x010, + AIT_APPLICATION_ICON_FLAG_48_64_169 = 0x020, + + AIT_APPLICATION_ICON_FLAG_128_128 = 0x040, + AIT_APPLICATION_ICON_FLAG_128_128_43 = 0x080, + AIT_APPLICATION_ICON_FLAG_96_128_169 = 0x100, +}; + +/** + * dvb_ait_application_icons_descriptor structure. + */ +struct dvb_ait_application_icons_descriptor { + struct descriptor d; + + uint8_t icon_locator_length; + /* uint8_t icon_locator[] */ + /* struct dvb_ait_application_icons_descriptor_part2 */ +} __ucsi_packed; + +/** + * Second part of a dvb_ait_application_icons_descriptor. + */ +struct dvb_ait_application_icons_descriptor_part2 { + uint16_t icon_flags; + /* uint8_t reserved[] */ +} __ucsi_packed; + +/** + * Process a dvb_ait_application_icons_descriptor. + * + * @param d Generic descriptor pointer. + * @return dvb_ait_application_icons_descriptor pointer, or NULL on error. + */ +static inline struct dvb_ait_application_icons_descriptor* + dvb_ait_application_icons_descriptor_codec(struct descriptor* d) +{ + uint8_t* buf = (uint8_t*) d; + uint32_t pos = 0; + uint32_t len = d->len + 2; + struct dvb_ait_application_icons_descriptor *ret = + (struct dvb_ait_application_icons_descriptor *) d; + + if (len < sizeof(struct dvb_ait_application_icons_descriptor)) + return NULL; + if (len < (sizeof(struct dvb_ait_application_icons_descriptor) + ret->icon_locator_length)) + return NULL; + + pos += sizeof(struct dvb_ait_application_icons_descriptor) + ret->icon_locator_length; + + if ((len - pos) < sizeof(struct dvb_ait_application_icons_descriptor_part2)) + return NULL; + bswap16(buf + pos); + + return ret; +} +/** + * Accessor for the icon_locator field of a dvb_ait_application_icons_descriptor. + * + * @param e dvb_ait_application_icons_descriptor pointer. + * @return Pointer to the field. + */ +static inline uint8_t * + dvb_ait_application_icons_descriptor_icon_locator(struct dvb_ait_application_icons_descriptor *e) +{ + return (uint8_t *) e + sizeof(struct dvb_ait_application_icons_descriptor); +} + +/** + * Accessor for the part2 field of a dvb_ait_application_icons_descriptor. + * + * @param e dvb_ait_application_icons_descriptor Pointer. + * @return dvb_ait_application_icons_descriptor_part2 pointer. + */ +static inline struct dvb_ait_application_icons_descriptor_part2 * + dvb_ait_application_icons_descriptor_part2(struct dvb_ait_application_icons_descriptor *e) +{ + return (struct dvb_ait_application_icons_descriptor_part2 *) + ((uint8_t *) e + sizeof(struct dvb_ait_application_icons_descriptor) + + e->icon_locator_length); +} + +/** + * Accessor for the reserved field of a dvb_ait_application_icons_descriptor_part2. + * + * @param e dvb_ait_application_icons_part2 pointer. + * @return Pointer to the field. + */ +static inline uint8_t * + dvb_ait_application_icons_descriptor_part2_reserved(struct dvb_ait_application_icons_descriptor_part2 *e) +{ + return (uint8_t *) e + sizeof(struct dvb_ait_application_icons_descriptor_part2); +} + +/** + * Calculate the number of bytes in the reserved field of a dvb_ait_application_icons_descriptor_part2. + * + * @param d dvb_ait_application_icons_descriptorpointer. + * @param part2 dvb_ait_application_icons_descriptor_part2 pointer. + * @return Number of bytes. + */ +static inline int + dvb_ait_application_icons_descriptor_part2_reserved_length(struct dvb_ait_application_icons_descriptor *d, + struct dvb_ait_application_icons_descriptor_part2* part2) +{ + uint8_t *ptr = (uint8_t*) part2 + sizeof(struct dvb_ait_application_icons_descriptor_part2); + uint8_t *end = (uint8_t*) d + d->d.len + 2; + + return (int) (end - ptr); +} + +#ifdef __cplusplus +} +#endif + +#endif diff --git a/lib/libucsi/dvb/ait_application_name_descriptor.h b/lib/libucsi/dvb/ait_application_name_descriptor.h new file mode 100644 index 0000000..a4b719e --- /dev/null +++ b/lib/libucsi/dvb/ait_application_name_descriptor.h @@ -0,0 +1,145 @@ +/* + * section and descriptor parser + * + * Copyright (C) 2005 Kenneth Aafloy (kenneth@linuxtv.org) + * Copyright (C) 2005 Andrew de Quincey (adq_dvb@lidskialf.net) + * + * This library is free software; you can redistribute it and/or + * modify it under the terms of the GNU Lesser General Public + * License as published by the Free Software Foundation; either + * version 2.1 of the License, or (at your option) any later version. + * + * This library is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * Lesser General Public License for more details. + * + * You should have received a copy of the GNU Lesser General Public + * License along with this library; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA + */ + +#ifndef _UCSI_DVB_AIT_APPLICATION_NAME_DESCRIPTOR +#define _UCSI_DVB_AIT_APPLICATION_NAME_DESCRIPTOR 1 + +#ifdef __cplusplus +extern "C" +{ +#endif + +#include <libucsi/descriptor.h> +#include <libucsi/endianops.h> +#include <libucsi/types.h> + +/** + * dvb_ait_application_name_descriptor structure. + */ +struct dvb_ait_application_name_descriptor { + struct descriptor d; + + /* struct dvb_ait_application_name names[] */ +} __ucsi_packed; + +/** + * An entry in the names field of a dvb_ait_application_name_descriptor. + */ +struct dvb_ait_application_name { + iso639lang_t language_code; + uint8_t application_name_length; + /* uint8_t name[] */ +} __ucsi_packed; + +/** + * Process a dvb_ait_application_name_descriptor. + * + * @param d Generic descriptor pointer. + * @return dvb_ait_application_name_descriptor pointer, or NULL on error. + */ +static inline struct dvb_ait_application_name_descriptor* + dvb_ait_application_name_descriptor_codec(struct descriptor* d) +{ + uint8_t* buf = (uint8_t*) d + 2; + uint32_t pos = 0; + uint32_t len = d->len; + + while(pos < len) { + struct dvb_ait_application_name *e = + (struct dvb_ait_application_name*) (buf + pos); + + pos += sizeof(struct dvb_ait_application_name); + + if (pos > len) + return NULL; + + pos += e->application_name_length; + + if (pos > len) + return NULL; + } + + return (struct dvb_ait_application_name_descriptor*) d; +} + +/** + * Iterator for entries in the names field of a dvb_ait_application_name_descriptor. + * + * @param d dvb_ait_application_name_descriptor pointer. + * @param pos Variable containing a pointer to the current dvb_ait_application_name. + */ +#define dvb_ait_application_name_descriptor_names_for_each(d, pos) \ + for ((pos) = dvb_ait_application_name_descriptor_names_first(d); \ + (pos); \ + (pos) = dvb_ait_application_name_descriptor_names_next(d, pos)) + +/** + * Accessor for the name field of a dvb_ait_application_name. + * + * @param e dvb_ait_application_name pointer. + * @return Pointer to the name field. + */ +static inline uint8_t * + dvb_ait_application_name_name(struct dvb_ait_application_name *e) +{ + return (uint8_t *) e + sizeof(struct dvb_ait_application_name); +} + + + + + + + + + + +/******************************** PRIVATE CODE ********************************/ +static inline struct dvb_ait_application_name* + dvb_ait_application_name_descriptor_names_first(struct dvb_ait_application_name_descriptor *d) +{ + if (d->d.len == 0) + return NULL; + + return (struct dvb_ait_application_name *) + ((uint8_t*) d + sizeof(struct dvb_ait_application_name_descriptor)); +} + +static inline struct dvb_ait_application_name* + dvb_ait_application_name_descriptor_names_next(struct dvb_ait_application_name_descriptor *d, + struct dvb_ait_application_name *pos) +{ + uint8_t *end = (uint8_t*) d + 2 + d->d.len; + uint8_t *next = (uint8_t *) pos + + sizeof(struct dvb_ait_application_name) + + pos->application_name_length; + + if (next >= end) + return NULL; + + return (struct dvb_ait_application_name *) next; +} + +#ifdef __cplusplus +} +#endif + +#endif diff --git a/lib/libucsi/dvb/ait_external_application_authorisation_descriptor.h b/lib/libucsi/dvb/ait_external_application_authorisation_descriptor.h new file mode 100644 index 0000000..34f584a --- /dev/null +++ b/lib/libucsi/dvb/ait_external_application_authorisation_descriptor.h @@ -0,0 +1,125 @@ +/* + * section and descriptor parser + * + * Copyright (C) 2005 Kenneth Aafloy (kenneth@linuxtv.org) + * Copyright (C) 2005 Andrew de Quincey (adq_dvb@lidskialf.net) + * + * This library is free software; you can redistribute it and/or + * modify it under the terms of the GNU Lesser General Public + * License as published by the Free Software Foundation; either + * version 2.1 of the License, or (at your option) any later version. + * + * This library is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * Lesser General Public License for more details. + * + * You should have received a copy of the GNU Lesser General Public + * License along with this library; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA + */ + +#ifndef _UCSI_DVB_AIT_EXTERNAL_APPLICATION_AUTHORISATION_DESCRIPTOR +#define _UCSI_DVB_AIT_EXTERNAL_APPLICATION_AUTHORISATION_DESCRIPTOR 1 + +#ifdef __cplusplus +extern "C" +{ +#endif + +#include <libucsi/descriptor.h> +#include <libucsi/endianops.h> +#include <libucsi/types.h> + +/** + * dvb_ait_external_application_authorisation_descriptor structure. + */ +struct dvb_ait_external_application_authorisation_descriptor { + struct descriptor d; + + /* struct dvb_ait_external_application_authorisation auths[] */ +} __ucsi_packed; + +/** + * An entry in the auths field of a dvb_ait_external_application_authorisation_descriptor. + */ +struct dvb_ait_external_application_authorisation { + uint32_t organization_id; + uint16_t application_id; + uint8_t application_priority; +} __ucsi_packed; + +/** + * Process a dvb_ait_external_application_authorisation_descriptor. + * + * @param d Generic descriptor pointer. + * @return dvb_ait_external_application_authorisation_descriptor pointer, or NULL on error. + */ +static inline struct dvb_ait_external_application_authorisation_descriptor* + dvb_ait_external_application_authorisation_descriptor_codec(struct descriptor* d) +{ + uint8_t* buf = (uint8_t*) d + 2; + uint32_t pos = 0; + uint32_t len = d->len; + + if (len % sizeof(struct dvb_ait_external_application_authorisation)) + return NULL; + + while(pos < len) { + bswap32(buf + pos); + bswap32(buf + pos + 4); + pos += sizeof(struct dvb_ait_external_application_authorisation); + } + + return (struct dvb_ait_external_application_authorisation_descriptor*) d; +} + +/** + * Iterator for entries in the auths field of a dvb_ait_external_application_authorisation_descriptor. + * + * @param d dvb_ait_external_application_authorisation_descriptor pointer. + * @param pos Variable containing a pointer to the current dvb_ait_external_application_authorisation. + */ +#define dvb_ait_external_application_authorisation_descriptor_auths_for_each(d, pos) \ + for ((pos) = dvb_ait_external_application_authorisation_descriptor_auths_first(d); \ + (pos); \ + (pos) = dvb_ait_external_application_authorisation_descriptor_auths_next(d, pos)) + + + + + + + + + +/******************************** PRIVATE CODE ********************************/ +static inline struct dvb_ait_external_application_authorisation* + dvb_ait_external_application_authorisation_descriptor_auths_first(struct dvb_ait_external_application_authorisation_descriptor *d) +{ + if (d->d.len == 0) + return NULL; + + return (struct dvb_ait_external_application_authorisation *) + ((uint8_t*) d + sizeof(struct dvb_ait_external_application_authorisation_descriptor)); +} + +static inline struct dvb_ait_external_application_authorisation* + dvb_ait_external_application_authorisation_descriptor_auths_next(struct dvb_ait_external_application_authorisation_descriptor *d, + struct dvb_ait_external_application_authorisation *pos) +{ + uint8_t *end = (uint8_t*) d + 2 + d->d.len; + uint8_t *next = (uint8_t *) pos + + sizeof(struct dvb_ait_external_application_authorisation); + + if (next >= end) + return NULL; + + return (struct dvb_ait_external_application_authorisation *) next; +} + +#ifdef __cplusplus +} +#endif + +#endif diff --git a/lib/libucsi/dvb/ancillary_data_descriptor.h b/lib/libucsi/dvb/ancillary_data_descriptor.h new file mode 100644 index 0000000..04b2f59 --- /dev/null +++ b/lib/libucsi/dvb/ancillary_data_descriptor.h @@ -0,0 +1,67 @@ +/* + * section and descriptor parser + * + * Copyright (C) 2005 Kenneth Aafloy (kenneth@linuxtv.org) + * Copyright (C) 2005 Andrew de Quincey (adq_dvb@lidskialf.net) + * + * This library is free software; you can redistribute it and/or + * modify it under the terms of the GNU Lesser General Public + * License as published by the Free Software Foundation; either + * version 2.1 of the License, or (at your option) any later version. + * + * This library is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * Lesser General Public License for more details. + * + * You should have received a copy of the GNU Lesser General Public + * License along with this library; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA + */ + +#ifndef _UCSI_DVB_ANCILLARY_DATA_DESCRIPTOR +#define _UCSI_DVB_ANCILLARY_DATA_DESCRIPTOR 1 + +#ifdef __cplusplus +extern "C" +{ +#endif + +#include <libucsi/descriptor.h> +#include <libucsi/endianops.h> + +/** + * dvb_ancillary_data_descriptor structure. + */ +struct dvb_ancillary_data_descriptor { + struct descriptor d; + EBIT8(uint8_t reserved : 1; , + uint8_t rds_via_udcp : 1; , + uint8_t mpeg4_ancillary_data : 1; , + uint8_t scale_factor_error_check : 1; , + uint8_t dab_ancillary_data : 1; , + uint8_t announcement_switching_data : 1; , + uint8_t extended_ancillary_data : 1; , + uint8_t dvd_video_ancillary_data : 1; ); +} __ucsi_packed; + +/** + * Process a dvb_ancillary_data_descriptor. + * + * @param d Generic descriptor pointer. + * @return dvb_ancillary_data_descriptor pointer, or NULL on error. + */ +static inline struct dvb_ancillary_data_descriptor* + dvb_ancillary_data_descriptor_codec(struct descriptor* d) +{ + if (d->len != (sizeof(struct dvb_ancillary_data_descriptor) - 2)) + return NULL; + + return (struct dvb_ancillary_data_descriptor*) d; +} + +#ifdef __cplusplus +} +#endif + +#endif diff --git a/lib/libucsi/dvb/announcement_support_descriptor.h b/lib/libucsi/dvb/announcement_support_descriptor.h new file mode 100644 index 0000000..9eb20c4 --- /dev/null +++ b/lib/libucsi/dvb/announcement_support_descriptor.h @@ -0,0 +1,219 @@ +/* + * section and descriptor parser + * + * Copyright (C) 2005 Kenneth Aafloy (kenneth@linuxtv.org) + * Copyright (C) 2005 Andrew de Quincey (adq_dvb@lidskialf.net) + * + * This library is free software; you can redistribute it and/or + * modify it under the terms of the GNU Lesser General Public + * License as published by the Free Software Foundation; either + * version 2.1 of the License, or (at your option) any later version. + * + * This library is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * Lesser General Public License for more details. + * + * You should have received a copy of the GNU Lesser General Public + * License along with this library; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA + */ + +#ifndef _UCSI_DVB_ANNOUNCEMENT_SUPPORT_DESCRIPTOR +#define _UCSI_DVB_ANNOUNCEMENT_SUPPORT_DESCRIPTOR 1 + +#ifdef __cplusplus +extern "C" +{ +#endif + +#include <libucsi/descriptor.h> +#include <libucsi/endianops.h> + +/** + * Possible values for announcement_support_indicator. + */ +enum { + DVB_ANNOUNCEMENT_SUPPORT_EMERGENCY = 0x01, + DVB_ANNOUNCEMENT_SUPPORT_ROAD_TRAFFIC_FLASH = 0x02, + DVB_ANNOUNCEMENT_SUPPORT_PUBLIC_TRANSPORT_FLASH = 0x04, + DVB_ANNOUNCEMENT_SUPPORT_WARNING_MESSAGE = 0x08, + DVB_ANNOUNCEMENT_SUPPORT_NEWS_FLASH = 0x10, + DVB_ANNOUNCEMENT_SUPPORT_WEATHER_FLASH = 0x20, + DVB_ANNOUNCEMENT_SUPPORT_EVENT_ANNOUNCEMENT = 0x40, + DVB_ANNOUNCEMENT_SUPPORT_PERSONAL_CALL = 0x80, +}; + +/** + * Possible values for announcement_type. + */ +enum { + DVB_ANNOUNCEMENT_TYPE_EMERGENCY = 0x00, + DVB_ANNOUNCEMENT_TYPE_ROAD_TRAFFIC_FLASH = 0x01, + DVB_ANNOUNCEMENT_TYPE_PUBLIC_TRANSPORT_FLASH = 0x02, + DVB_ANNOUNCEMENT_TYPE_WARNING_MESSAGE = 0x03, + DVB_ANNOUNCEMENT_TYPE_NEWS_FLASH = 0x04, + DVB_ANNOUNCEMENT_TYPE_WEATHER_FLASH = 0x05, + DVB_ANNOUNCEMENT_TYPE_EVENT_ANNOUNCEMENT = 0x06, + DVB_ANNOUNCEMENT_TYPE_PERSONAL_CALL = 0x07, +}; + +/** + * Possible values for reference_type. + */ +enum { + DVB_REFERENCE_TYPE_AUDIO = 0x00, + DVB_REFERENCE_TYPE_OTHER_AUDIO = 0x01, + DVB_REFERENCE_TYPE_OTHER_SERVICE = 0x02, + DVB_REFERENCE_TYPE_OTHER_TS = 0x03, +}; + +/** + * dvb_announcement_support_descriptor structure. + */ +struct dvb_announcement_support_descriptor { + struct descriptor d; + uint16_t announcement_support_indicator; + /* struct dvb_announcement_support_entry entries[] */ +} __ucsi_packed; + +/** + * An entry in the entries field of a dvb_announcement_support_descriptor. + */ +struct dvb_announcement_support_entry { + EBIT3(uint8_t announcement_type : 4; , + uint8_t reserved : 1; , + uint8_t reference_type : 3; ); + /* Only if reference_type == 1, 2 or 3: + * struct dvb_announcement_support_reference reference */ +} __ucsi_packed; + +/** + * The optional reference field only present in a dvb_announcement_support_descriptor if + * its reference_type field is 1,2 or 3. + */ +struct dvb_announcement_support_reference { + uint16_t original_network_id; + uint16_t transport_stream_id; + uint16_t service_id; + uint8_t component_tag; +} __ucsi_packed; + +/** + * Process a dvb_announcement_support_descriptor. + * + * @param d Generic descriptor pointer. + * @return dvb_announcement_support_descriptor pointer, or NULL on error. + */ +static inline struct dvb_announcement_support_descriptor* + dvb_announcement_support_descriptor_codec(struct descriptor* d) +{ + uint32_t pos = 0; + uint8_t* buf = (uint8_t*) d + 2; + uint32_t len = d->len; + + if (len < (sizeof(struct dvb_announcement_support_descriptor) - 2)) + return NULL; + + bswap16(buf+pos); + + pos += 2; + + while(pos < len) { + struct dvb_announcement_support_entry *e = + (struct dvb_announcement_support_entry*) (buf+pos); + + pos += sizeof(struct dvb_announcement_support_entry); + + if (pos > len) + return NULL; + + if ((e->reference_type == 1) || + (e->reference_type == 2) || + (e->reference_type == 3)) { + if ((pos + sizeof(struct dvb_announcement_support_reference)) > len) + return NULL; + + bswap16(buf+pos); + bswap16(buf+pos+2); + bswap16(buf+pos+4); + + pos += sizeof(struct dvb_announcement_support_reference); + } + } + + return (struct dvb_announcement_support_descriptor*) d; +} + +/** + * Iterator for the entries field of a dvb_announcement_support_descriptor. + * + * @param d dvb_announcement_support_descriptor pointer. + * @param pod Variable holding a pointer to the current dvb_announcement_support_entry. + */ +#define dvb_announcement_support_descriptor_entries_for_each(d, pos) \ + for ((pos) = dvb_announcement_support_descriptor_entries_first(d); \ + (pos); \ + (pos) = dvb_announcement_support_descriptor_entries_next(d, pos)) + +/** + * Accessor for the reference field of a dvb_announcement_support_entry if present. + * + * @param entry dvb_announcement_support_entry pointer. + * @return dvb_announcement_support_reference pointer, or NULL on error. + */ +static inline struct dvb_announcement_support_reference* + dvb_announcement_support_entry_reference(struct dvb_announcement_support_entry* entry) +{ + if ((entry->reference_type != 0x01) && + (entry->reference_type != 0x02) && + (entry->reference_type != 0x03)) + return NULL; + + return (struct dvb_announcement_support_reference*) + ((uint8_t*) entry + sizeof(struct dvb_announcement_support_entry)); +} + + + + + + + + + + +/******************************** PRIVATE CODE ********************************/ +static inline struct dvb_announcement_support_entry* + dvb_announcement_support_descriptor_entries_first(struct dvb_announcement_support_descriptor *d) +{ + if (d->d.len == 2) + return NULL; + + return (struct dvb_announcement_support_entry *) + ((uint8_t*) d + sizeof(struct dvb_announcement_support_descriptor)); +} + +static inline struct dvb_announcement_support_entry* + dvb_announcement_support_descriptor_entries_next(struct dvb_announcement_support_descriptor *d, + struct dvb_announcement_support_entry *pos) +{ + uint8_t *end = (uint8_t*) d + 2 + d->d.len; + uint8_t* next = (uint8_t*) pos + sizeof(struct dvb_announcement_support_entry); + struct dvb_announcement_support_reference* reference = + dvb_announcement_support_entry_reference(pos); + + if (reference) + next += sizeof(struct dvb_announcement_support_reference); + + if (next >= end) + return NULL; + + return (struct dvb_announcement_support_entry *) next; +} + +#ifdef __cplusplus +} +#endif + +#endif diff --git a/lib/libucsi/dvb/application_signalling_descriptor.h b/lib/libucsi/dvb/application_signalling_descriptor.h new file mode 100644 index 0000000..78211cf --- /dev/null +++ b/lib/libucsi/dvb/application_signalling_descriptor.h @@ -0,0 +1,124 @@ +/* + * section and descriptor parser + * + * Copyright (C) 2005 Kenneth Aafloy (kenneth@linuxtv.org) + * Copyright (C) 2005 Andrew de Quincey (adq_dvb@lidskialf.net) + * + * This library is free software; you can redistribute it and/or + * modify it under the terms of the GNU Lesser General Public + * License as published by the Free Software Foundation; either + * version 2.1 of the License, or (at your option) any later version. + * + * This library is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * Lesser General Public License for more details. + * + * You should have received a copy of the GNU Lesser General Public + * License along with this library; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA + */ + +#ifndef _UCSI_DVB_APPLICATION_SIGNALLING_DESCRIPTOR +#define _UCSI_DVB_APPLICATION_SIGNALLING_DESCRIPTOR 1 + +#ifdef __cplusplus +extern "C" +{ +#endif + +#include <libucsi/descriptor.h> +#include <libucsi/endianops.h> + +/** + * dvb_application_signalling_descriptor structure. + */ +struct dvb_application_signalling_descriptor { + struct descriptor d; + + /* struct dvb_application_signalling_entry entries[] */ +} __ucsi_packed; + +/** + * An entry in the entries field of a dvb_application_signalling_descriptor. + */ +struct dvb_application_signalling_entry { + uint16_t application_type; + EBIT2(uint8_t reserved : 3; , + uint8_t AIT_version_number : 5; ); +} __ucsi_packed; + +/** + * Process a dvb_application_signalling_descriptor. + * + * @param d Generic descriptor pointer. + * @return dvb_application_signalling_descriptor pointer, or NULL on error. + */ +static inline struct dvb_application_signalling_descriptor* + dvb_application_signalling_descriptor_codec(struct descriptor* d) +{ + uint32_t pos = 0; + uint32_t len = d->len; + uint8_t* buf = (uint8_t*) d + 2; + + pos += sizeof(struct dvb_application_signalling_descriptor) - 2; + if (len % sizeof(struct dvb_application_signalling_entry)) + return NULL; + + while(pos < len) { + bswap16(buf+pos); + pos+=3; + } + + return (struct dvb_application_signalling_descriptor*) d; +} + +/** + * Iterator for the entries field of a dvb_application_signalling_descriptor. + * + * @param d dvb_application_signalling_descriptor pointer. + * @param pos Variable containing a pointer to the current dvb_application_signalling_entry. + */ +#define dvb_application_signalling_descriptor_entries_for_each(d, pos) \ + for ((pos) = dvb_application_signalling_descriptor_entries_first(d); \ + (pos); \ + (pos) = dvb_application_signalling_descriptor_entries_next(d, pos)) + + + + + + + + + + +/******************************** PRIVATE CODE ********************************/ +static inline struct dvb_application_signalling_entry* + dvb_application_signalling_descriptor_entries_first(struct dvb_application_signalling_descriptor *d) +{ + if (d->d.len == 0) + return NULL; + + return (struct dvb_application_signalling_entry *) + ((uint8_t*) d + sizeof(struct dvb_application_signalling_descriptor)); +} + +static inline struct dvb_application_signalling_entry* + dvb_application_signalling_descriptor_entries_next(struct dvb_application_signalling_descriptor *d, + struct dvb_application_signalling_entry *pos) +{ + uint8_t *end = (uint8_t*) d + 2 + d->d.len; + uint8_t *next = (uint8_t *) pos + sizeof(struct dvb_application_signalling_entry); + + if (next >= end) + return NULL; + + return (struct dvb_application_signalling_entry *) next; +} + +#ifdef __cplusplus +} +#endif + +#endif diff --git a/lib/libucsi/dvb/bat_section.c b/lib/libucsi/dvb/bat_section.c new file mode 100644 index 0000000..99e5cf6 --- /dev/null +++ b/lib/libucsi/dvb/bat_section.c @@ -0,0 +1,77 @@ +/* + * section and descriptor parser + * + * Copyright (C) 2005 Kenneth Aafloy (kenneth@linuxtv.org) + * Copyright (C) 2005 Andrew de Quincey (adq_dvb@lidskialf.net) + * + * This library is free software; you can redistribute it and/or + * modify it under the terms of the GNU Lesser General Public + * License as published by the Free Software Foundation; either + * version 2.1 of the License, or (at your option) any later version. + * + * This library is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * Lesser General Public License for more details. + * + * You should have received a copy of the GNU Lesser General Public + * License along with this library; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA + */ + +#include <libucsi/dvb/bat_section.h> + +struct dvb_bat_section * dvb_bat_section_codec(struct section_ext * ext) +{ + uint8_t * buf = (uint8_t *) ext; + size_t pos = sizeof(struct section_ext); + size_t len = section_ext_length(ext); + struct dvb_bat_section * ret = (struct dvb_bat_section *) ext; + + if (len < sizeof(struct dvb_bat_section)) + return NULL; + + bswap16(buf + pos); + pos += 2; + + if ((pos + ret->bouquet_descriptors_length) > len) + return NULL; + + if (verify_descriptors(buf + pos, ret->bouquet_descriptors_length)) + return NULL; + pos += ret->bouquet_descriptors_length; + + if ((pos + sizeof(struct dvb_bat_section_part2)) > len) + return NULL; + + bswap16(buf + pos); + pos += sizeof(struct dvb_bat_section_part2); + + while (pos < len) { + struct dvb_bat_transport * transport = + (struct dvb_bat_transport *) (buf + pos); + + if ((pos + sizeof(struct dvb_bat_transport)) > len) + return NULL; + + bswap16(buf + pos); + bswap16(buf + pos + 2); + bswap16(buf + pos + 4); + + pos += sizeof(struct dvb_bat_transport); + + if ((pos + transport->transport_descriptors_length) > len) + return NULL; + + if (verify_descriptors(buf + pos, + transport->transport_descriptors_length)) + return NULL; + + pos += transport->transport_descriptors_length; + } + + if (pos != len) + return NULL; + + return ret; +} diff --git a/lib/libucsi/dvb/bat_section.h b/lib/libucsi/dvb/bat_section.h new file mode 100644 index 0000000..94ed8a4 --- /dev/null +++ b/lib/libucsi/dvb/bat_section.h @@ -0,0 +1,211 @@ +/* + * section and descriptor parser + * + * Copyright (C) 2005 Kenneth Aafloy (kenneth@linuxtv.org) + * Copyright (C) 2005 Andrew de Quincey (adq_dvb@lidskialf.net) + * + * This library is free software; you can redistribute it and/or + * modify it under the terms of the GNU Lesser General Public + * License as published by the Free Software Foundation; either + * version 2.1 of the License, or (at your option) any later version. + * + * This library is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * Lesser General Public License for more details. + * + * You should have received a copy of the GNU Lesser General Public + * License along with this library; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA + */ + +#ifndef _UCSI_DVB_BAT_SECTION_H +#define _UCSI_DVB_BAT_SECTION_H 1 + +#ifdef __cplusplus +extern "C" +{ +#endif + +#include <libucsi/section.h> + +/** + * dvb_bat_section structure. + */ +struct dvb_bat_section { + struct section_ext head; + + EBIT2(uint16_t reserved_1 : 4; , + uint16_t bouquet_descriptors_length :12; ); + /* struct descriptor descriptors[] */ + /* struct dvb_bat_section_part2 part2 */ +}; + +/** + * Second part of a dvb_bat_section, following the variable length descriptors field. + */ +struct dvb_bat_section_part2 { + EBIT2(uint16_t reserved_2 : 4; , + uint16_t transport_stream_loop_length :12; ); + /* struct dvb_bat_transport transports[] */ +} __ucsi_packed; + +/** + * An entry in the transports field of a dvb_bat_section_part2. + */ +struct dvb_bat_transport { + uint16_t transport_stream_id; + uint16_t original_network_id; + EBIT2(uint16_t reserved : 4; , + uint16_t transport_descriptors_length :12; ); + /* struct descriptor descriptors[] */ +}; + +/** + * Process a dvb_bat_section. + * + * @param section Generic section pointer. + * @return dvb_bat_section pointer, or NULL on error. + */ +struct dvb_bat_section *dvb_bat_section_codec(struct section_ext *section); + +/** + * Accessor for the bouquet_id field of a BAT. + * + * @param bat BAT pointer. + * @return The bouquet_id. + */ +static inline uint16_t dvb_bat_section_bouquet_id(struct dvb_bat_section *bat) +{ + return bat->head.table_id_ext; +} + +/** + * Iterator for the descriptors field in a dvb_bat_section. + * + * @param bat dvb_bat_section pointer. + * @param pos Variable containing a pointer to the current descriptor. + */ +#define dvb_bat_section_descriptors_for_each(bat, pos) \ + for ((pos) = dvb_bat_section_descriptors_first(bat); \ + (pos); \ + (pos) = dvb_bat_section_descriptors_next(bat, pos)) + +/** + * Accessor for the second part of a dvb_bat_section. + * + * @param bat dvb_bat_section pointer. + * @return dvb_bat_section_part2 pointer. + */ +static inline struct dvb_bat_section_part2 * + dvb_bat_section_part2(struct dvb_bat_section *bat) +{ + return (struct dvb_bat_section_part2 *) + ((uint8_t*) bat + + sizeof(struct dvb_bat_section) + + bat->bouquet_descriptors_length); + +} + +/** + * Iterator for the transports field of a dvb_bat_section_part2. + * + * @param part2 dvb_bat_section_part2 pointer. + * @param pos Variable containing a pointer to the current dvb_bat_transport. + */ +#define dvb_bat_section_transports_for_each(part2, pos) \ + for ((pos) = dvb_bat_section_transports_first(part2); \ + (pos); \ + (pos) = dvb_bat_section_transports_next(part2, pos)) + +/** + * Iterator for the descriptors field of a dvb_bat_transport. + * + * @param transport dvb_bat_transport pointer. + * @param pos Variable containing a pointer to the current descriptor. + */ +#define dvb_bat_transport_descriptors_for_each(transport, pos) \ + for ((pos) = dvb_bat_transport_descriptors_first(transport); \ + (pos); \ + (pos) = dvb_bat_transport_descriptors_next(transport, pos)) + + + + + + + + + + + + +/******************************** PRIVATE CODE ********************************/ +static inline struct descriptor * + dvb_bat_section_descriptors_first(struct dvb_bat_section *bat) +{ + if (bat->bouquet_descriptors_length == 0) + return NULL; + + return (struct descriptor *) + ((uint8_t *) bat + sizeof(struct dvb_bat_section)); +} + +static inline struct descriptor * + dvb_bat_section_descriptors_next(struct dvb_bat_section *bat, + struct descriptor* pos) +{ + return next_descriptor((uint8_t*) bat + sizeof(struct dvb_bat_section), + bat->bouquet_descriptors_length, + pos); +} + +static inline struct dvb_bat_transport * + dvb_bat_section_transports_first(struct dvb_bat_section_part2 *part2) +{ + if (part2->transport_stream_loop_length == 0) + return NULL; + + return (struct dvb_bat_transport *) + ((uint8_t *) part2 + sizeof(struct dvb_bat_section_part2)); +} + +static inline struct dvb_bat_transport * + dvb_bat_section_transports_next(struct dvb_bat_section_part2 *part2, + struct dvb_bat_transport *pos) +{ + uint8_t *end = (uint8_t*) part2 + sizeof(struct dvb_bat_section_part2) + + part2->transport_stream_loop_length; + uint8_t *next = (uint8_t*) pos + sizeof(struct dvb_bat_transport) + + pos->transport_descriptors_length; + + if (next >= end) + return NULL; + + return (struct dvb_bat_transport *) next; +} + +static inline struct descriptor * + dvb_bat_transport_descriptors_first(struct dvb_bat_transport *t) +{ + if (t->transport_descriptors_length == 0) + return NULL; + + return (struct descriptor *) + ((uint8_t*)t + sizeof(struct dvb_bat_transport)); +} + +static inline struct descriptor * + dvb_bat_transport_descriptors_next(struct dvb_bat_transport *t, + struct descriptor* pos) +{ + return next_descriptor((uint8_t*) t + sizeof(struct dvb_bat_transport), + t->transport_descriptors_length, + pos); +} + +#ifdef __cplusplus +} +#endif + +#endif diff --git a/lib/libucsi/dvb/bouquet_name_descriptor.h b/lib/libucsi/dvb/bouquet_name_descriptor.h new file mode 100644 index 0000000..a298849 --- /dev/null +++ b/lib/libucsi/dvb/bouquet_name_descriptor.h @@ -0,0 +1,82 @@ +/* + * section and descriptor parser + * + * Copyright (C) 2005 Kenneth Aafloy (kenneth@linuxtv.org) + * Copyright (C) 2005 Andrew de Quincey (adq_dvb@lidskialf.net) + * + * This library is free software; you can redistribute it and/or + * modify it under the terms of the GNU Lesser General Public + * License as published by the Free Software Foundation; either + * version 2.1 of the License, or (at your option) any later version. + * + * This library is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * Lesser General Public License for more details. + * + * You should have received a copy of the GNU Lesser General Public + * License along with this library; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA + */ + +#ifndef _UCSI_DVB_BOUQUET_NAME_DESCRIPTOR +#define _UCSI_DVB_BOUQUET_NAME_DESCRIPTOR 1 + +#ifdef __cplusplus +extern "C" +{ +#endif + +#include <libucsi/descriptor.h> +#include <libucsi/endianops.h> + +/** + * dvb_bouquet_name_descriptor structure. + */ +struct dvb_bouquet_name_descriptor { + struct descriptor d; + + /* uint8_t name[] */ +} __ucsi_packed; + +/** + * Process a dvb_bouquet_name_descriptor. + * + * @param d Generic descriptor pointer. + * @return dvb_bouquet_name_descriptor pointer, or NULL on error. + */ +static inline struct dvb_bouquet_name_descriptor* + dvb_bouquet_name_descriptor_codec(struct descriptor* d) +{ + return (struct dvb_bouquet_name_descriptor*) d; +} + +/** + * Accessor for the name field of a dvb_bouquet_name_descriptor. + * + * @param d dvb_bouquet_name_descriptor pointer. + * @return Pointer to the field. + */ +static inline uint8_t * + dvb_bouquet_name_descriptor_name(struct dvb_bouquet_name_descriptor *d) +{ + return (uint8_t *) d + sizeof(struct dvb_bouquet_name_descriptor); +} + +/** + * Determine the length of the name field of a dvb_bouquet_name_descriptor in bytes. + * + * @param d dvb_bouquet_name_descriptor pointer. + * @return Length of the field in bytes. + */ +static inline int + dvb_bouquet_name_descriptor_name_length(struct dvb_bouquet_name_descriptor *d) +{ + return d->d.len; +} + +#ifdef __cplusplus +} +#endif + +#endif diff --git a/lib/libucsi/dvb/ca_identifier_descriptor.h b/lib/libucsi/dvb/ca_identifier_descriptor.h new file mode 100644 index 0000000..ac670a9 --- /dev/null +++ b/lib/libucsi/dvb/ca_identifier_descriptor.h @@ -0,0 +1,94 @@ +/* + * section and descriptor parser + * + * Copyright (C) 2005 Kenneth Aafloy (kenneth@linuxtv.org) + * Copyright (C) 2005 Andrew de Quincey (adq_dvb@lidskialf.net) + * + * This library is free software; you can redistribute it and/or + * modify it under the terms of the GNU Lesser General Public + * License as published by the Free Software Foundation; either + * version 2.1 of the License, or (at your option) any later version. + * + * This library is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * Lesser General Public License for more details. + * + * You should have received a copy of the GNU Lesser General Public + * License along with this library; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA + */ + +#ifndef _UCSI_DVB_CA_IDENTIFIER_DESCRIPTOR +#define _UCSI_DVB_CA_IDENTIFIER_DESCRIPTOR 1 + +#ifdef __cplusplus +extern "C" +{ +#endif + +#include <libucsi/descriptor.h> +#include <libucsi/endianops.h> + +/** + * dvb_ca_identifier_descriptor structure. + */ +struct dvb_ca_identifier_descriptor { + struct descriptor d; + + /* uint16_t ca_system_ids[] */ +} __ucsi_packed; + +/** + * Process a dvb_ca_identifier_descriptor. + * + * @param d Generic descriptor pointer. + * @return dvb_ca_identifier_descriptor pointer, or NULL on error. + */ +static inline struct dvb_ca_identifier_descriptor* + dvb_ca_identifier_descriptor_codec(struct descriptor* d) +{ + uint32_t len = d->len; + uint8_t *buf = (uint8_t*) d + 2; + uint32_t pos = 0; + + if (len % 2) + return NULL; + + while(pos < len) { + bswap16(buf+pos); + pos+=2; + } + + return (struct dvb_ca_identifier_descriptor*) d; +} + +/** + * Accessor for the ca_system_ids field of a dvb_ca_identifier_descriptor. + * + * @param d Generic descriptor pointer. + * @return Pointer to the field. + */ +static inline uint16_t * + dvb_ca_identifier_descriptor_ca_system_ids(struct dvb_ca_identifier_descriptor *d) +{ + return (uint16_t *) ((uint8_t *) d + sizeof(struct dvb_ca_identifier_descriptor)); +} + +/** + * Calculate the number of entries in the ca_system_ids field of a dvb_ca_identifier_descriptor. + * + * @param d dvb_ca_identifier_descriptor pointer. + * @return Number of entries. + */ +static inline int + dvb_ca_identifier_descriptor_ca_system_ids_count(struct dvb_ca_identifier_descriptor *d) +{ + return d->d.len >> 1; +} + +#ifdef __cplusplus +} +#endif + +#endif diff --git a/lib/libucsi/dvb/cable_delivery_descriptor.h b/lib/libucsi/dvb/cable_delivery_descriptor.h new file mode 100644 index 0000000..f0f92f3 --- /dev/null +++ b/lib/libucsi/dvb/cable_delivery_descriptor.h @@ -0,0 +1,70 @@ +/* + * section and descriptor parser + * + * Copyright (C) 2005 Kenneth Aafloy (kenneth@linuxtv.org) + * Copyright (C) 2005 Andrew de Quincey (adq_dvb@lidskialf.net) + * + * This library is free software; you can redistribute it and/or + * modify it under the terms of the GNU Lesser General Public + * License as published by the Free Software Foundation; either + * version 2.1 of the License, or (at your option) any later version. + * + * This library is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * Lesser General Public License for more details. + * + * You should have received a copy of the GNU Lesser General Public + * License along with this library; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA + */ + +#ifndef _UCSI_DVB_CABLE_DELIVERY_DESCRIPTOR +#define _UCSI_DVB_CABLE_DELIVERY_DESCRIPTOR 1 + +#ifdef __cplusplus +extern "C" +{ +#endif + +#include <libucsi/descriptor.h> +#include <libucsi/endianops.h> + +/** + * dvb_cable_delivery_descriptor structure. + */ +struct dvb_cable_delivery_descriptor { + struct descriptor d; + + uint32_t frequency; // BCD, units 100Hz + EBIT2(uint16_t reserved : 12; , + uint16_t fec_outer : 4; ); + uint8_t modulation; + EBIT2(uint32_t symbol_rate : 28; , // BCD, units 100Hz + uint32_t fec_inner : 4; ); +} __ucsi_packed; + +/** + * Process a dvb_cable_delivery_descriptor. + * + * @param d Generic descriptor pointer. + * @return dvb_cable_delivery_descriptor pointer, or NULL on error. + */ +static inline struct dvb_cable_delivery_descriptor* + dvb_cable_delivery_descriptor_codec(struct descriptor* d) +{ + if (d->len != (sizeof(struct dvb_cable_delivery_descriptor) - 2)) + return NULL; + + bswap32((uint8_t*) d + 2); + bswap16((uint8_t*) d + 6); + bswap32((uint8_t*) d + 9); + + return (struct dvb_cable_delivery_descriptor*) d; +} + +#ifdef __cplusplus +} +#endif + +#endif diff --git a/lib/libucsi/dvb/cell_frequency_link_descriptor.h b/lib/libucsi/dvb/cell_frequency_link_descriptor.h new file mode 100644 index 0000000..63f7fd2 --- /dev/null +++ b/lib/libucsi/dvb/cell_frequency_link_descriptor.h @@ -0,0 +1,190 @@ +/* + * section and descriptor parser + * + * Copyright (C) 2005 Kenneth Aafloy (kenneth@linuxtv.org) + * Copyright (C) 2005 Andrew de Quincey (adq_dvb@lidskialf.net) + * + * This library is free software; you can redistribute it and/or + * modify it under the terms of the GNU Lesser General Public + * License as published by the Free Software Foundation; either + * version 2.1 of the License, or (at your option) any later version. + * + * This library is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * Lesser General Public License for more details. + * + * You should have received a copy of the GNU Lesser General Public + * License along with this library; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA + */ + +#ifndef _UCSI_DVB_CELL_FREQUENCY_LINK_DESCRIPTOR +#define _UCSI_DVB_CELL_FREQUENCY_LINK_DESCRIPTOR 1 + +#ifdef __cplusplus +extern "C" +{ +#endif + +#include <libucsi/descriptor.h> +#include <libucsi/endianops.h> + +/** + * dvb_cell_frequency_link_descriptor structure. + */ +struct dvb_cell_frequency_link_descriptor { + struct descriptor d; + + /* struct dvb_cell_frequency_link_cell cells[] */ +} __ucsi_packed; + +/** + * An entry in the cells field of a dvb_cell_frequency_link_descriptor. + */ +struct dvb_cell_frequency_link_cell { + uint16_t cell_id; + uint32_t frequency; + uint8_t subcell_loop_info_length; + /* struct dvb_cell_frequency_link_subcell subcells[] */ +} __ucsi_packed; + +/** + * An entry in the subcells field of a dvb_cell_frequency_link_cell. + */ +struct dvb_cell_frequency_link_cell_subcell { + uint8_t cell_id_extension; + uint32_t transposer_frequency; +} __ucsi_packed; + +/** + * Process a dvb_cell_frequency_link_descriptor. + * + * @param d Generic descriptor pointer. + * @return dvb_cell_frequency_link_descriptor pointer, or NULL on error. + */ +static inline struct dvb_cell_frequency_link_descriptor* + dvb_cell_frequency_link_descriptor_codec(struct descriptor* d) +{ + uint32_t pos = 0; + uint32_t pos2 = 0; + uint8_t* buf = (uint8_t*) d + 2; + uint32_t len = d->len; + + while(pos < len) { + struct dvb_cell_frequency_link_cell *e = + (struct dvb_cell_frequency_link_cell*) (buf+pos); + + if ((pos + sizeof(struct dvb_cell_frequency_link_cell)) > len) + return NULL; + + bswap16(buf+pos); + bswap32(buf+pos+2); + + pos += sizeof(struct dvb_cell_frequency_link_cell); + + if ((pos + e->subcell_loop_info_length) > len) + return NULL; + + if (e->subcell_loop_info_length % sizeof(struct dvb_cell_frequency_link_cell_subcell)) + return NULL; + + pos2 = 0; + while(pos2 < e->subcell_loop_info_length) { + bswap32(buf+pos+pos2+1); + + pos2 += sizeof(struct dvb_cell_frequency_link_cell_subcell); + } + + pos += e->subcell_loop_info_length; + } + + return (struct dvb_cell_frequency_link_descriptor*) d; +} + +/** + * Iterator for the cells field of a dvb_cell_frequency_link_descriptor. + * + * @param d dvb_cell_frequency_link_descriptor pointer. + * @param pos Variable holding a pointer to the current dvb_cell_frequency_link_cell. + */ +#define dvb_cell_frequency_link_descriptor_cells_for_each(d, pos) \ + for ((pos) = dvb_cell_frequency_link_descriptor_cells_first(d); \ + (pos); \ + (pos) = dvb_cell_frequency_link_descriptor_cells_next(d, pos)) + +/** + * Iterator for the subcells field of a dvb_cell_frequency_link_cell. + * + * @param cell dvb_cell_frequency_link_cell pointer. + * @param pos Variable holding a pointer to the current dvb_cell_frequency_link_cell_subcell. + */ +#define dvb_cell_frequency_link_cell_subcells_for_each(cell, pos) \ + for ((pos) = dvb_cell_frequency_link_cell_subcells_first(cell); \ + (pos); \ + (pos) = dvb_cell_frequency_link_cell_subcells_next(cell, pos)) + + + + + + + + + + +/******************************** PRIVATE CODE ********************************/ +static inline struct dvb_cell_frequency_link_cell* + dvb_cell_frequency_link_descriptor_cells_first(struct dvb_cell_frequency_link_descriptor *d) +{ + if (d->d.len == 0) + return NULL; + + return (struct dvb_cell_frequency_link_cell *) + ((uint8_t*) d + sizeof(struct dvb_cell_frequency_link_descriptor)); +} + +static inline struct dvb_cell_frequency_link_cell* + dvb_cell_frequency_link_descriptor_cells_next(struct dvb_cell_frequency_link_descriptor *d, + struct dvb_cell_frequency_link_cell *pos) +{ + uint8_t *end = (uint8_t*) d + 2 + d->d.len; + uint8_t *next = (uint8_t *) pos + + sizeof(struct dvb_cell_frequency_link_cell) + + pos->subcell_loop_info_length; + + if (next >= end) + return NULL; + + return (struct dvb_cell_frequency_link_cell *) next; +} + +static inline struct dvb_cell_frequency_link_cell_subcell* + dvb_cell_frequency_link_cell_subcells_first(struct dvb_cell_frequency_link_cell *d) +{ + if (d->subcell_loop_info_length == 0) + return NULL; + + return (struct dvb_cell_frequency_link_cell_subcell*) + ((uint8_t*) d + sizeof(struct dvb_cell_frequency_link_cell)); +} + +static inline struct dvb_cell_frequency_link_cell_subcell* + dvb_cell_frequency_link_cell_subcells_next(struct dvb_cell_frequency_link_cell *cell, + struct dvb_cell_frequency_link_cell_subcell *pos) +{ + uint8_t *end = (uint8_t*) cell + cell->subcell_loop_info_length; + uint8_t *next = (uint8_t*) pos + + sizeof(struct dvb_cell_frequency_link_cell_subcell); + + if (next >= end) + return NULL; + + return (struct dvb_cell_frequency_link_cell_subcell *) next; +} + +#ifdef __cplusplus +} +#endif + +#endif diff --git a/lib/libucsi/dvb/cell_list_descriptor.h b/lib/libucsi/dvb/cell_list_descriptor.h new file mode 100644 index 0000000..ddbaf2c --- /dev/null +++ b/lib/libucsi/dvb/cell_list_descriptor.h @@ -0,0 +1,201 @@ +/* + * section and descriptor parser + * + * Copyright (C) 2005 Kenneth Aafloy (kenneth@linuxtv.org) + * Copyright (C) 2005 Andrew de Quincey (adq_dvb@lidskialf.net) + * + * This library is free software; you can redistribute it and/or + * modify it under the terms of the GNU Lesser General Public + * License as published by the Free Software Foundation; either + * version 2.1 of the License, or (at your option) any later version. + * + * This library is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * Lesser General Public License for more details. + * + * You should have received a copy of the GNU Lesser General Public + * License along with this library; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA + */ + +#ifndef _UCSI_DVB_CELL_LIST_DESCRIPTOR +#define _UCSI_DVB_CELL_LIST_DESCRIPTOR 1 + +#ifdef __cplusplus +extern "C" +{ +#endif + +#include <libucsi/descriptor.h> +#include <libucsi/endianops.h> + +/** + * dvb_cell_list_descriptor structure. + */ +struct dvb_cell_list_descriptor { + struct descriptor d; + + /* struct dvb_cell_list_entry cells[] */ +} __ucsi_packed; + +/** + * An entry in the cells field of a dvb_cell_list_descriptor. + */ +struct dvb_cell_list_entry { + uint16_t cell_id; + uint16_t cell_latitude; + uint16_t cell_longitude; + EBIT3(uint32_t cell_extend_of_latitude :12; , + uint32_t cell_extend_of_longitude :12; , + uint32_t subcell_info_loop_length : 8; ); + /* struct dvb_subcell_list_entry subcells[] */ +} __ucsi_packed; + +/** + * An entry in the subcells field of a dvb_cell_list_entry. + */ +struct dvb_subcell_list_entry { + uint8_t cell_id_extension; + uint16_t subcell_latitude; + uint16_t subcell_longitude; + EBIT2(uint32_t subcell_extend_of_latitude :12; , + uint32_t subcell_extend_of_longitude :12; ); +} __ucsi_packed; + +/** + * Process a dvb_cell_list_descriptor. + * + * @param d Generic descriptor pointer. + * @return dvb_cell_list_descriptor pointer, or NULL on error. + */ +static inline struct dvb_cell_list_descriptor* + dvb_cell_list_descriptor_codec(struct descriptor* d) +{ + uint32_t pos = 0; + uint32_t pos2 = 0; + uint8_t* buf = (uint8_t*) d + 2; + uint32_t len = d->len; + + while(pos < len) { + struct dvb_cell_list_entry *e = + (struct dvb_cell_list_entry*) (buf+pos); + + if ((pos + sizeof(struct dvb_cell_list_entry)) > len) + return NULL; + + bswap16(buf+pos); + bswap16(buf+pos+2); + bswap16(buf+pos+4); + bswap32(buf+pos+6); + + pos += sizeof(struct dvb_cell_list_entry); + + if ((pos + e->subcell_info_loop_length) > len) + return NULL; + + if (e->subcell_info_loop_length % sizeof(struct dvb_subcell_list_entry)) + return NULL; + + pos2 = 0; + while(pos2 < e->subcell_info_loop_length) { + bswap16(buf+pos+pos2+1); + bswap16(buf+pos+pos2+3); + bswap24(buf+pos+pos2+5); + + pos2 += sizeof(struct dvb_subcell_list_entry); + } + + pos += e->subcell_info_loop_length; + } + + return (struct dvb_cell_list_descriptor*) d; +} + +/** + * Iterator for the cells field of a dvb_cell_list_descriptor. + * + * @param d dvb_cell_list_descriptor pointer. + * @param pos Variable holding a pointer to the current dvb_cell_list_entry. + */ +#define dvb_cell_list_descriptor_cells_for_each(d, pos) \ + for ((pos) = dvb_cell_list_descriptor_cells_first(d); \ + (pos); \ + (pos) = dvb_cell_list_descriptor_cells_next(d, pos)) + +/** + * Iterator for the subcells field of a dvb_cell_list_entry. + * + * @param cell dvb_cell_list_entry pointer. + * @param pos Variable holding a pointer to the current dvb_subcell_list_entry. + */ +#define dvb_cell_list_entry_subcells_for_each(cell, pos) \ + for ((pos) = dvb_cell_list_entry_subcells_first(cell); \ + (pos); \ + (pos) = dvb_cell_list_entry_subcells_next(cell, pos)) + + + + + + + + + + +/******************************** PRIVATE CODE ********************************/ +static inline struct dvb_cell_list_entry* + dvb_cell_list_descriptor_cells_first(struct dvb_cell_list_descriptor *d) +{ + if (d->d.len == 0) + return NULL; + + return (struct dvb_cell_list_entry *) + ((uint8_t*) d + sizeof(struct dvb_cell_list_descriptor)); +} + +static inline struct dvb_cell_list_entry* + dvb_cell_list_descriptor_cells_next(struct dvb_cell_list_descriptor *d, + struct dvb_cell_list_entry *pos) +{ + uint8_t *end = (uint8_t*) d + 2 + d->d.len; + uint8_t *next = (uint8_t *) pos + + sizeof(struct dvb_cell_list_entry) + + pos->subcell_info_loop_length; + + if (next >= end) + return NULL; + + return (struct dvb_cell_list_entry *) next; +} + +static inline struct dvb_subcell_list_entry* + dvb_cell_list_entry_subcells_first(struct dvb_cell_list_entry *d) +{ + if (d->subcell_info_loop_length == 0) + return NULL; + + return (struct dvb_subcell_list_entry*) + ((uint8_t*) d + sizeof(struct dvb_cell_list_entry)); +} + +static inline struct dvb_subcell_list_entry* + dvb_cell_list_entry_subcells_next(struct dvb_cell_list_entry *d, + struct dvb_subcell_list_entry *pos) +{ + uint8_t *next = (uint8_t*) pos + sizeof(struct dvb_subcell_list_entry); + uint8_t *end = (uint8_t*) d + + sizeof(struct dvb_cell_list_entry) + + d->subcell_info_loop_length; + + if (next >= end) + return NULL; + + return (struct dvb_subcell_list_entry *) next; +} + +#ifdef __cplusplus +} +#endif + +#endif diff --git a/lib/libucsi/dvb/component_descriptor.h b/lib/libucsi/dvb/component_descriptor.h new file mode 100644 index 0000000..31d38e1 --- /dev/null +++ b/lib/libucsi/dvb/component_descriptor.h @@ -0,0 +1,147 @@ +/* + * section and descriptor parser + * + * Copyright (C) 2005 Kenneth Aafloy (kenneth@linuxtv.org) + * Copyright (C) 2005 Andrew de Quincey (adq_dvb@lidskialf.net) + * + * This library is free software; you can redistribute it and/or + * modify it under the terms of the GNU Lesser General Public + * License as published by the Free Software Foundation; either + * version 2.1 of the License, or (at your option) any later version. + * + * This library is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * Lesser General Public License for more details. + * + * You should have received a copy of the GNU Lesser General Public + * License along with this library; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA + */ + +#ifndef _UCSI_DVB_COMPONENT_DESCRIPTOR +#define _UCSI_DVB_COMPONENT_DESCRIPTOR 1 + +#ifdef __cplusplus +extern "C" +{ +#endif + +#include <libucsi/descriptor.h> +#include <libucsi/endianops.h> +#include <libucsi/types.h> + +/** + * Possible values for stream_content. + */ +enum { + DVB_STREAM_CONTENT_VIDEO = 0x01, + DVB_STREAM_CONTENT_AUDIO = 0x02, + DVB_STREAM_CONTENT_SUBTITLE = 0x03, + DVB_STREAM_CONTENT_AC3 = 0x04, +}; + +/** + * Possible values for component_type. + */ +enum { + DVB_COMPONENT_TYPE_VIDEO_43_25Hz = 0x01, + DVB_COMPONENT_TYPE_VIDEO_169_PAN_25Hz = 0x02, + DVB_COMPONENT_TYPE_VIDEO_169_NOPAN_25Hz = 0x03, + DVB_COMPONENT_TYPE_VIDEO_GT169_25Hz = 0x04, + + DVB_COMPONENT_TYPE_VIDEO_43_30Hz = 0x05, + DVB_COMPONENT_TYPE_VIDEO_169_PAN_30Hz = 0x06, + DVB_COMPONENT_TYPE_VIDEO_169_NOPAN_30Hz = 0x07, + DVB_COMPONENT_TYPE_VIDEO_GT169_30Hz = 0x08, + + DVB_COMPONENT_TYPE_HDVIDEO_43_25Hz = 0x09, + DVB_COMPONENT_TYPE_HDVIDEO_169_PAN_25Hz = 0x0a, + DVB_COMPONENT_TYPE_HDVIDEO_169_NOPAN_25Hz = 0x0b, + DVB_COMPONENT_TYPE_HDVIDEO_GT169_25Hz = 0x0c, + + DVB_COMPONENT_TYPE_HDVIDEO_43_30Hz = 0x0d, + DVB_COMPONENT_TYPE_HDVIDEO_169_PAN_30Hz = 0x0e, + DVB_COMPONENT_TYPE_HDVIDEO_169_NOPAN_30Hz = 0x0f, + DVB_COMPONENT_TYPE_HDVIDEO_GT169_30Hz = 0x10, + + DVB_COMPONENT_TYPE_AUDIO_SINGLE_MONO = 0x01, + DVB_COMPONENT_TYPE_AUDIO_DUAL_MONO = 0x02, + DVB_COMPONENT_TYPE_AUDIO_STEREO = 0x03, + DVB_COMPONENT_TYPE_AUDIO_MULTI_LINGUAL_MULTI_CHAN= 0x04, + DVB_COMPONENT_TYPE_AUDIO_SURROUND = 0x05, + DVB_COMPONENT_TYPE_AUDIO_VISUAL_IMPAIRED = 0x40, + DVB_COMPONENT_TYPE_AUDIO_HARDHEAR = 0x41, + DVB_COMPONENT_TYPE_AUDIO_SUPPLEMENTARY = 0x42, + + DVB_COMPONENT_TYPE_SUBTITLE_TELETEXT = 0x01, + DVB_COMPONENT_TYPE_SUBTITLE_ASSOC_TELETEXT = 0x02, + DVB_COMPONENT_TYPE_SUBTITLE_VBI = 0x03, + DVB_COMPONENT_TYPE_SUBTITLE_DVB = 0x10, + DVB_COMPONENT_TYPE_SUBTITLE_DVB_43 = 0x11, + DVB_COMPONENT_TYPE_SUBTITLE_DVB_169 = 0x12, + DVB_COMPONENT_TYPE_SUBTITLE_DVB_2211 = 0x13, + DVB_COMPONENT_TYPE_SUBTITLE_DVB_HARDHEAR = 0x20, + DVB_COMPONENT_TYPE_SUBTITLE_DVB_HARDHEAR_43 = 0x21, + DVB_COMPONENT_TYPE_SUBTITLE_DVB_HARDHEAR_169 = 0x22, + DVB_COMPONENT_TYPE_SUBTITLE_DVB_HARDHEAR_2211 = 0x23, +}; + +/** + * dvb_component_descriptor structure. + */ +struct dvb_component_descriptor { + struct descriptor d; + + EBIT2(uint8_t reserved : 4; , + uint8_t stream_content : 4; ); + uint8_t component_type; + uint8_t component_tag; + iso639lang_t language_code; + /* uint8_t text[] */ +} __ucsi_packed; + +/** + * Process a dvb_component_descriptor. + * + * @param d Pointer to a generic descriptor. + * @return dvb_component_descriptor pointer, or NULL on error. + */ +static inline struct dvb_component_descriptor* + dvb_component_descriptor_codec(struct descriptor* d) +{ + if (d->len < (sizeof(struct dvb_component_descriptor) - 2)) + return NULL; + + return (struct dvb_component_descriptor*) d; +} + +/** + * Accessor for the text field of a dvb_component_descriptor. + * + * @param d dvb_component_descriptor pointer. + * @return Pointer to the field. + */ +static inline uint8_t * + dvb_component_descriptor_text(struct dvb_component_descriptor *d) +{ + return (uint8_t *) d + sizeof(struct dvb_component_descriptor); +} + +/** + * Determine the length of the text field of a dvb_component_descriptor. + * + * @param d dvb_component_descriptor pointer. + * @return Length of the field in bytes. + */ +static inline int + dvb_component_descriptor_text_length(struct dvb_component_descriptor *d) +{ + return d->d.len - 6; +} + +#ifdef __cplusplus +} +#endif + +#endif diff --git a/lib/libucsi/dvb/content_descriptor.h b/lib/libucsi/dvb/content_descriptor.h new file mode 100644 index 0000000..d2a63a0 --- /dev/null +++ b/lib/libucsi/dvb/content_descriptor.h @@ -0,0 +1,116 @@ +/* + * section and descriptor parser + * + * Copyright (C) 2005 Kenneth Aafloy (kenneth@linuxtv.org) + * Copyright (C) 2005 Andrew de Quincey (adq_dvb@lidskialf.net) + * + * This library is free software; you can redistribute it and/or + * modify it under the terms of the GNU Lesser General Public + * License as published by the Free Software Foundation; either + * version 2.1 of the License, or (at your option) any later version. + * + * This library is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * Lesser General Public License for more details. + * + * You should have received a copy of the GNU Lesser General Public + * License along with this library; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA + */ + +#ifndef _UCSI_DVB_CONTENT_DESCRIPTOR +#define _UCSI_DVB_CONTENT_DESCRIPTOR 1 + +#ifdef __cplusplus +extern "C" +{ +#endif + +#include <libucsi/descriptor.h> +#include <libucsi/endianops.h> + +// FIXME: the nibbles + +/** + * dvb_content_descriptor structure. + */ +struct dvb_content_descriptor { + struct descriptor d; + + /* struct dvb_content_nibble nibbles[] */ +} __ucsi_packed; + +/** + * An entry in the nibbles field of a dvb_content_descriptor. + */ +struct dvb_content_nibble { + EBIT2(uint8_t content_nibble_level_1 : 4; , + uint8_t content_nibble_level_2 : 4; ); + EBIT2(uint8_t user_nibble_1 : 4; , + uint8_t user_nibble_2 : 4; ); +} __ucsi_packed; + +/** + * Process a dvb_content_descriptor. + * + * @param d Generic descriptor pointer. + * @return dvb_content_descriptor pointer, or NULL on error. + */ +static inline struct dvb_content_descriptor* + dvb_content_descriptor_codec(struct descriptor* d) +{ + if (d->len % sizeof(struct dvb_content_nibble)) + return NULL; + + return (struct dvb_content_descriptor*) d; +} + +/** + * Iterator for the nibbles field of a dvb_content_descriptor. + * + * @param d dvb_content_descriptor pointer. + * @param pos Variable containing a pointer to the current dvb_content_nibble. + */ +#define dvb_content_descriptor_nibbles_for_each(d, pos) \ + for ((pos) = dvb_content_descriptor_nibbles_first(d); \ + (pos); \ + (pos) = dvb_content_descriptor_nibbles_next(d, pos)) + + + + + + + + + +/******************************** PRIVATE CODE ********************************/ +static inline struct dvb_content_nibble* + dvb_content_descriptor_nibbles_first(struct dvb_content_descriptor *d) +{ + if (d->d.len == 0) + return NULL; + + return (struct dvb_content_nibble *) + ((uint8_t*) d + sizeof(struct dvb_content_descriptor)); +} + +static inline struct dvb_content_nibble* + dvb_content_descriptor_nibbles_next(struct dvb_content_descriptor *d, + struct dvb_content_nibble *pos) +{ + uint8_t *end = (uint8_t*) d + 2 + d->d.len; + uint8_t *next = (uint8_t *) pos + sizeof(struct dvb_content_nibble); + + if (next >= end) + return NULL; + + return (struct dvb_content_nibble *) next; +} + +#ifdef __cplusplus +} +#endif + +#endif diff --git a/lib/libucsi/dvb/content_identifier_descriptor.h b/lib/libucsi/dvb/content_identifier_descriptor.h new file mode 100644 index 0000000..c2cf9ea --- /dev/null +++ b/lib/libucsi/dvb/content_identifier_descriptor.h @@ -0,0 +1,233 @@ +/* + * section and descriptor parser + * + * Copyright (C) 2005 Kenneth Aafloy (kenneth@linuxtv.org) + * Copyright (C) 2005 Andrew de Quincey (adq_dvb@lidskialf.net) + * + * This library is free software; you can redistribute it and/or + * modify it under the terms of the GNU Lesser General Public + * License as published by the Free Software Foundation; either + * version 2.1 of the License, or (at your option) any later version. + * + * This library is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * Lesser General Public License for more details. + * + * You should have received a copy of the GNU Lesser General Public + * License along with this library; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA + */ + +#ifndef _UCSI_DVB_CONTENT_IDENTIFIER_DESCRIPTOR +#define _UCSI_DVB_CONTENT_IDENTIFIER_DESCRIPTOR 1 + +#ifdef __cplusplus +extern "C" +{ +#endif + +#include <libucsi/descriptor.h> +#include <libucsi/endianops.h> +#include <libucsi/types.h> + + +/** + * Possible values for the crid_type. + */ +enum { + DVB_CRID_TYPE_NONE = 0x00, + DVB_CRID_TYPE_ITEM = 0x01, + DVB_CRID_TYPE_SERIES = 0x02, + DVB_CRID_TYPE_RECOMMENDATION = 0x03, +}; + +/** + * Possible values for the crid_location. + */ +enum { + DVB_CRID_LOCATION_THIS_DESCRIPTOR = 0x00, + DVB_CRID_LOCATION_CIT = 0x01, +}; + +/** + * dvb_content_identifier_descriptor structure. + */ +struct dvb_content_identifier_descriptor { + struct descriptor d; + + /* struct dvb_content_identifier_entry entries[] */ +} __ucsi_packed; + +/** + * An entry in the entries field of a dvb_content_identifier_descriptor. + */ +struct dvb_content_identifier_entry { + EBIT2(uint8_t crid_type : 6; , + uint8_t crid_location : 2; ); + /* struct dvb_content_identifier_data_00 data0 */ + /* struct dvb_content_identifier_data_01 data1 */ +} __ucsi_packed; + +/** + * The data if crid_location == 0 + */ +struct dvb_content_identifier_entry_data_0 { + uint8_t crid_length; + /* uint8_t data[] */ +} __ucsi_packed; + +/** + * The data if crid_location == 1 + */ +struct dvb_content_identifier_entry_data_1 { + uint16_t crid_ref; +} __ucsi_packed; + + +/** + * Process a dvb_content_identifier_descriptor. + * + * @param d Generic descriptor. + * @return dvb_content_identifier_descriptor pointer, or NULL on error. + */ +static inline struct dvb_content_identifier_descriptor* + dvb_content_identifier_descriptor_codec(struct descriptor* d) +{ + uint32_t len = d->len + 2; + uint32_t pos = 2; + uint8_t *buf = (uint8_t*) d; + + while(pos < len) { + struct dvb_content_identifier_entry *e = + (struct dvb_content_identifier_entry*) (buf + pos); + + if (len < (pos+1)) + return NULL; + pos++; + + switch(e->crid_location) { + case 0: + if (len < (pos + 1)) + return NULL; + if (len < (pos + 1 + buf[pos])) + return NULL; + pos += 1 + buf[pos]; + break; + + case 1: + if (len < (pos+2)) + return NULL; + bswap16(buf+pos); + break; + } + } + + if (pos != len) + return NULL; + + return (struct dvb_content_identifier_descriptor*) d; +} + +/** + * Iterator for entries field of a dvb_content_identifier_descriptor. + * + * @param d dvb_content_identifier_descriptor pointer. + * @param pos Variable holding a pointer to the current dvb_content_identifier_entry. + */ +#define dvb_content_identifier_descriptor_entries_for_each(d, pos) \ + for ((pos) = dvb_content_identifier_descriptor_entries_first(d); \ + (pos); \ + (pos) = dvb_content_identifier_descriptor_entries_next(d, pos)) + +/** + * Accessor for the data0 field of a dvb_content_identifier_entry. + * + * @param d dvb_content_identifier_entry pointer. + * @return Pointer, or NULL on error. + */ +static inline struct dvb_content_identifier_entry_data_0* + dvb_content_identifier_entry_data_0(struct dvb_content_identifier_entry *d) +{ + if (d->crid_location != 0) + return NULL; + return (struct dvb_content_identifier_entry_data_0*) + ((uint8_t*) d + sizeof(struct dvb_content_identifier_entry)); +} +/** + * Accessor for the data field of a dvb_content_identifier_entry_data_0. + * + * @param d dvb_content_identifier_entry_data_0 pointer. + * @return Pointer, or NULL on error. + */ +static inline uint8_t* + dvb_content_identifier_entry_data_0_data(struct dvb_content_identifier_entry_data_0 *d) +{ + return ((uint8_t*) d + sizeof(struct dvb_content_identifier_entry_data_0)); +} + +/** + * Accessor for the data1 field of a dvb_content_identifier_entry. + * + * @param d dvb_content_identifier_entry pointer. + * @return Pointer, or NULL on error. + */ +static inline struct dvb_content_identifier_entry_data_1* + dvb_content_identifier_entry_data_1(struct dvb_content_identifier_entry *d) +{ + if (d->crid_location != 1) + return NULL; + return (struct dvb_content_identifier_entry_data_1*) + ((uint8_t*) d + sizeof(struct dvb_content_identifier_entry)); +} + + + + + + + + +/******************************** PRIVATE CODE ********************************/ +static inline struct dvb_content_identifier_entry* + dvb_content_identifier_descriptor_entries_first(struct dvb_content_identifier_descriptor *d) +{ + if (d->d.len == 0) + return NULL; + + return (struct dvb_content_identifier_entry *) + ((uint8_t*) d + sizeof(struct dvb_content_identifier_descriptor)); +} + +static inline struct dvb_content_identifier_entry* + dvb_content_identifier_descriptor_entries_next(struct dvb_content_identifier_descriptor *d, + struct dvb_content_identifier_entry *pos) +{ + uint8_t *end = (uint8_t*) d + 2 + d->d.len; + uint8_t *next = (uint8_t *) pos + sizeof(struct dvb_content_identifier_entry); + + if (next >= end) + return NULL; + + switch(pos->crid_location) { + case 0: + if ((next+2) >= end) + return NULL; + if ((next+2+next[1]) >= end) + return NULL; + break; + + case 1: + if ((next+3) >= end) + return NULL; + break; + } + + return (struct dvb_content_identifier_entry*) next; +} + +#ifdef __cplusplus +} +#endif + +#endif diff --git a/lib/libucsi/dvb/country_availability_descriptor.h b/lib/libucsi/dvb/country_availability_descriptor.h new file mode 100644 index 0000000..65b1661 --- /dev/null +++ b/lib/libucsi/dvb/country_availability_descriptor.h @@ -0,0 +1,120 @@ +/* + * section and descriptor parser + * + * Copyright (C) 2005 Kenneth Aafloy (kenneth@linuxtv.org) + * Copyright (C) 2005 Andrew de Quincey (adq_dvb@lidskialf.net) + * + * This library is free software; you can redistribute it and/or + * modify it under the terms of the GNU Lesser General Public + * License as published by the Free Software Foundation; either + * version 2.1 of the License, or (at your option) any later version. + * + * This library is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * Lesser General Public License for more details. + * + * You should have received a copy of the GNU Lesser General Public + * License along with this library; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA + */ + +#ifndef _UCSI_DVB_COUNTRY_AVAILABILITY_DESCRIPTOR +#define _UCSI_DVB_COUNTRY_AVAILABILITY_DESCRIPTOR 1 + +#ifdef __cplusplus +extern "C" +{ +#endif + +#include <libucsi/descriptor.h> +#include <libucsi/endianops.h> +#include <libucsi/types.h> + +/** + * dvb_country_availability_descriptor structure. + */ +struct dvb_country_availability_descriptor { + struct descriptor d; + + EBIT2(uint8_t country_availability_flag : 1; , + uint8_t reserved : 7; ); + /* struct dvb_country_availability_entry countries[] */ +} __ucsi_packed; + +/** + * An entry in the countries field of a dvb_country_availability_descriptor. + */ +struct dvb_country_availability_entry { + iso639country_t country_code; +} __ucsi_packed; + +/** + * Process a dvb_country_availability_descriptor. + * + * @param d Generic descriptor pointer. + * @return dvb_country_availability_descriptor pointer, or NULL on error. + */ +static inline struct dvb_country_availability_descriptor* + dvb_country_availability_descriptor_codec(struct descriptor* d) +{ + uint32_t len = d->len; + + if (len < (sizeof(struct dvb_country_availability_descriptor) - 2)) + return NULL; + + if ((len - 1) % sizeof(struct dvb_country_availability_entry)) + return NULL; + + return (struct dvb_country_availability_descriptor*) d; +} + +/** + * Iterator for the countries field of a dvb_country_availability_descriptor. + * + * @param d dvb_country_availability_descriptor pointer. + * @param pos Variable containing a pointer to the current dvb_country_availability_entry. + */ +#define dvb_country_availability_descriptor_countries_for_each(d, pos) \ + for ((pos) = dvb_country_availability_descriptor_countries_first(d); \ + (pos); \ + (pos) = dvb_country_availability_descriptor_countries_next(d, pos)) + + + + + + + + + + +/******************************** PRIVATE CODE ********************************/ +static inline struct dvb_country_availability_entry* + dvb_country_availability_descriptor_countries_first(struct dvb_country_availability_descriptor *d) +{ + if (d->d.len == 1) + return NULL; + + return (struct dvb_country_availability_entry *) + ((uint8_t*) d + sizeof(struct dvb_country_availability_descriptor)); +} + +static inline struct dvb_country_availability_entry* + dvb_country_availability_descriptor_countries_next(struct dvb_country_availability_descriptor *d, + struct dvb_country_availability_entry *pos) +{ + uint8_t *end = (uint8_t*) d + 2 + d->d.len; + uint8_t *next = (uint8_t *) pos + sizeof(struct dvb_country_availability_entry); + + if (next >= end) + return NULL; + + return (struct dvb_country_availability_entry *) next; +} + +#ifdef __cplusplus +} +#endif + +#endif diff --git a/lib/libucsi/dvb/data_broadcast_descriptor.h b/lib/libucsi/dvb/data_broadcast_descriptor.h new file mode 100644 index 0000000..069e1db --- /dev/null +++ b/lib/libucsi/dvb/data_broadcast_descriptor.h @@ -0,0 +1,139 @@ +/* + * section and descriptor parser + * + * Copyright (C) 2005 Kenneth Aafloy (kenneth@linuxtv.org) + * Copyright (C) 2005 Andrew de Quincey (adq_dvb@lidskialf.net) + * + * This library is free software; you can redistribute it and/or + * modify it under the terms of the GNU Lesser General Public + * License as published by the Free Software Foundation; either + * version 2.1 of the License, or (at your option) any later version. + * + * This library is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * Lesser General Public License for more details. + * + * You should have received a copy of the GNU Lesser General Public + * License along with this library; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA + */ + +#ifndef _UCSI_DVB_DATA_BROADCAST_DESCRIPTOR +#define _UCSI_DVB_DATA_BROADCAST_DESCRIPTOR 1 + +#ifdef __cplusplus +extern "C" +{ +#endif + +#include <libucsi/descriptor.h> +#include <libucsi/endianops.h> +#include <libucsi/types.h> + +/** + * dvb_data_broadcast_descriptor structure. + */ +struct dvb_data_broadcast_descriptor { + struct descriptor d; + + uint16_t data_broadcast_id; + uint8_t component_tag; + uint8_t selector_length; + /* uint8_t selector[] */ + /* struct dvb_data_broadcast_descriptor_part2 part2 */ +} __ucsi_packed; + +/** + * Second part of a dvb_data_broadcast_descriptor following the variable length selector field. + */ +struct dvb_data_broadcast_descriptor_part2 { + iso639lang_t language_code; + uint8_t text_length; + /* uint8_t text[] */ +} __ucsi_packed; + +/** + * Process a dvb_data_broadcast_descriptor. + * + * @param d Generic descriptor pointer. + * @return dvb_data_broadcast_descriptor pointer, or NULL on error. + */ +static inline struct dvb_data_broadcast_descriptor* + dvb_data_broadcast_descriptor_codec(struct descriptor* d) +{ + struct dvb_data_broadcast_descriptor *p = + (struct dvb_data_broadcast_descriptor *) d; + struct dvb_data_broadcast_descriptor_part2 *p2; + uint8_t* buf = (uint8_t*) d + 2; + uint32_t pos = sizeof(struct dvb_data_broadcast_descriptor) - 2; + uint32_t len = d->len; + + if (pos > len) + return NULL; + + bswap16(buf + 2); + + pos += p->selector_length; + + if (pos > len) + return NULL; + + p2 = (struct dvb_data_broadcast_descriptor_part2*) (buf + 2 + pos); + + pos += sizeof(struct dvb_data_broadcast_descriptor_part2); + + if (pos > len) + return NULL; + + pos += p2->text_length; + + if (pos != len) + return NULL; + + return p; +} + +/** + * Accessor for the selector field of a dvb_data_broadcast_descriptor. + * + * @param d dvb_data_broadcast_descriptor pointer. + * @return pointer to the field. + */ +static inline uint8_t * + dvb_data_broadcast_descriptor_selector(struct dvb_data_broadcast_descriptor *d) +{ + return (uint8_t *) d + sizeof(struct dvb_data_broadcast_descriptor); +} + +/** + * Accessor for the second part of a dvb_data_broadcast_descriptor. + * + * @param d dvb_data_broadcast_descriptor pointer. + * @return dvb_data_broadcast_descriptor_part2 pointer. + */ +static inline struct dvb_data_broadcast_descriptor_part2 * + dvb_data_broadcast_descriptor_part2(struct dvb_data_broadcast_descriptor *d) +{ + return (struct dvb_data_broadcast_descriptor_part2*) + ((uint8_t*) d + sizeof(struct dvb_data_broadcast_descriptor) + + d->selector_length); +} + +/** + * Accessor for the text field in a dvb_data_broadcast_descriptor_part2. + * + * @param d dvb_data_broadcast_descriptor_part2 pointer. + * @return pointer to the field. + */ +static inline uint8_t * + dvb_data_broadcast_descriptor_part2_text(struct dvb_data_broadcast_descriptor_part2 *d) +{ + return (uint8_t *) d + sizeof(struct dvb_data_broadcast_descriptor_part2); +} + +#ifdef __cplusplus +} +#endif + +#endif diff --git a/lib/libucsi/dvb/data_broadcast_id_descriptor.h b/lib/libucsi/dvb/data_broadcast_id_descriptor.h new file mode 100644 index 0000000..446927c --- /dev/null +++ b/lib/libucsi/dvb/data_broadcast_id_descriptor.h @@ -0,0 +1,221 @@ +/* + * section and descriptor parser + * + * Copyright (C) 2005 Kenneth Aafloy (kenneth@linuxtv.org) + * Copyright (C) 2005 Andrew de Quincey (adq_dvb@lidskialf.net) + * + * This library is free software; you can redistribute it and/or + * modify it under the terms of the GNU Lesser General Public + * License as published by the Free Software Foundation; either + * version 2.1 of the License, or (at your option) any later version. + * + * This library is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * Lesser General Public License for more details. + * + * You should have received a copy of the GNU Lesser General Public + * License along with this library; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA + */ + +#ifndef _UCSI_DVB_DATA_BROADCAST_ID_DESCRIPTOR +#define _UCSI_DVB_DATA_BROADCAST_ID_DESCRIPTOR 1 + +#ifdef __cplusplus +extern "C" +{ +#endif + +#include <libucsi/descriptor.h> +#include <libucsi/endianops.h> + +/** + * Possible values for data_broadcast_id. + */ +enum { + DVB_BROADCAST_ID_DATA_PIPE = 0X0001, + DVB_BROADCAST_ID_ASYNCHRONOUS_DATA_STREAM = 0X0002, + DVB_BROADCAST_ID_SYNCHRONOUS_DATA_STREAM = 0X0003, + DVB_BROADCAST_ID_SYNCHRONISED_DATA_STREAM = 0X0004, + DVB_BROADCAST_ID_MULTI_PROTOCOL_ENCAPSULATION = 0X0005, + DVB_BROADCAST_ID_DATA_CAROUSEL = 0X0006, + DVB_BROADCAST_ID_OBJECT_CAROUSEL = 0X0007, + DVB_BROADCAST_ID_DVB_ATM_STREAMS = 0X0008, + DVB_BROADCAST_ID_HIGHER_PROTOCOLS = 0X0009, + DVB_BROADCAST_ID_SOFTWARE_UPDATE = 0x000A, + DVB_BROADCAST_ID_IP_MAC_NOTIFICATION_TABLE = 0x000B, +}; + +/** + * dvb_data_broadcast_id_descriptor structure. + */ +struct dvb_data_broadcast_id_descriptor { + struct descriptor d; + + uint16_t data_broadcast_id; + /* uint8_t id_selector_byte[] */ +} __ucsi_packed; + +/** + * id_selector_byte for 0x000b data_broadcast_id (IP/MAC Notification Table). + */ +struct dvb_id_selector_byte_000b { + uint8_t platform_id_data_length; + /* struct dvb_ip_mac_notification_info infos[] */ + /* uint8_t private_data[] */ +} __ucsi_packed; + +/** + * Entries in the infos field of a dvb_id_selector_byte_0b. + */ +struct dvb_ip_mac_notification_info { + EBIT2(uint32_t platform_id : 24; , + uint8_t action_type : 8; ); + EBIT3(uint8_t reserved : 2; , + uint8_t INT_versioning_flag : 1; , + uint8_t INT_version : 5; ); +} __ucsi_packed; + +/** + * Process a dvb_data_broadcast_id_descriptor. + * + * @param d Generic descriptor structure. + * @return dvb_data_broadcast_id_descriptor pointer, or NULL on error. + */ +static inline struct dvb_data_broadcast_id_descriptor* + dvb_data_broadcast_id_descriptor_codec(struct descriptor* d) +{ + if (d->len < (sizeof(struct dvb_data_broadcast_id_descriptor) - 2)) + return NULL; + + bswap16((uint8_t*) d + 2); + + return (struct dvb_data_broadcast_id_descriptor*) d; +} + +/** + * Accessor for the selector_byte field of a dvb_data_broadcast_id_descriptor. + * + * @param d dvb_data_broadcast_id_descriptor pointer. + * @return Pointer to the field. + */ +static inline uint8_t * + dvb_data_broadcast_id_descriptor_id_selector_byte(struct dvb_data_broadcast_id_descriptor *d) +{ + return (uint8_t *) d + sizeof(struct dvb_data_broadcast_id_descriptor); +} + +/** + * Determine the length of the selector_byte field of a dvb_data_broadcast_id_descriptor. + * + * @param d dvb_data_broadcast_id_descriptor pointer. + * @return Length of the field in bytes. + */ +static inline int + dvb_data_broadcast_id_descriptor_id_selector_byte_length(struct dvb_data_broadcast_id_descriptor *d) +{ + return d->d.len - 2; +} + +/** + * Accessor for a dvb_id_selector_byte_000b pointer. + * + * @param d dvb_data_broadcast_id_descriptor pointer. + * @return Pointer to the data field. + */ +static inline struct dvb_id_selector_byte_000b * + dvb_id_selector_byte_000b(struct dvb_data_broadcast_id_descriptor *d) +{ + if (d->data_broadcast_id != DVB_BROADCAST_ID_IP_MAC_NOTIFICATION_TABLE) + return NULL; + return (struct dvb_id_selector_byte_000b *) dvb_data_broadcast_id_descriptor_id_selector_byte(d); +} + +/** + * Iterator for the dvb_ip_mac_notification_info field of a dvb_id_selector_byte_000b. + * + * @param id_selector_byte dvb_id_selector_byte_000b pointer. + * @param pos Variable containing a pointer to the current dvb_ip_mac_notification_info. + */ +#define dvb_id_selector_byte_000b_ip_mac_notification_info_for_each(id_selector_byte, pos) \ + for ((pos) = dvb_ip_mac_notification_info_first(id_selector_byte); \ + (pos); \ + (pos) = dvb_ip_mac_notification_info_next(id_selector_byte, pos)) + +/** + * Length of the private_data field of a dvb_id_selector_byte_000b. + * + * @param d descriptor pointer. + * @param i dvb_id_selector_byte_000b pointer. + * @return Length of the field. + */ +static inline uint8_t + dvb_id_selector_byte_000b_private_data_length(struct descriptor *d, + struct dvb_id_selector_byte_000b *i) +{ + return (uint8_t) (d->len - + sizeof(struct descriptor) - + i->platform_id_data_length - + sizeof(struct dvb_id_selector_byte_000b)); +} + +/** + * Accessor for the private_data field of a dvb_id_selector_byte_000b. + * + * @param d descriptor pointer. + * @param i dvb_id_selector_byte_000b pointer. + * @return Pointer to the field. + */ +static inline uint8_t * + dvb_id_selector_byte_000b_private_data(struct descriptor *d, + struct dvb_id_selector_byte_000b *i) +{ + if (dvb_id_selector_byte_000b_private_data_length(d, i) <= 0) + return NULL; + + return (uint8_t *) i + i->platform_id_data_length + sizeof(struct dvb_id_selector_byte_000b); +} + + + + + + + +/******************************** PRIVATE CODE ********************************/ +static inline struct dvb_ip_mac_notification_info * + dvb_ip_mac_notification_info_first(struct dvb_id_selector_byte_000b *d) +{ + if (d->platform_id_data_length == 0) + return NULL; + + bswap32((uint8_t *) d + sizeof(struct dvb_id_selector_byte_000b)); + + return (struct dvb_ip_mac_notification_info *) ((uint8_t *) d + sizeof(struct dvb_id_selector_byte_000b)); +} + +static inline struct dvb_ip_mac_notification_info * + dvb_ip_mac_notification_info_next(struct dvb_id_selector_byte_000b *d, + struct dvb_ip_mac_notification_info *pos) +{ + uint8_t *end = (uint8_t *) d + d->platform_id_data_length; + uint8_t *next = (uint8_t *) pos + + sizeof(struct dvb_id_selector_byte_000b) + + sizeof(struct dvb_ip_mac_notification_info); + + if (next >= end) + return NULL; + + bswap32(next); + + return (struct dvb_ip_mac_notification_info *) next; +} + +#ifdef __cplusplus +} +#endif + +#endif + +#include <libucsi/dvb/mhp_data_broadcast_id_descriptor.h> diff --git a/lib/libucsi/dvb/default_authority_descriptor.h b/lib/libucsi/dvb/default_authority_descriptor.h new file mode 100644 index 0000000..0b0ba73 --- /dev/null +++ b/lib/libucsi/dvb/default_authority_descriptor.h @@ -0,0 +1,82 @@ +/* + * section and descriptor parser + * + * Copyright (C) 2005 Kenneth Aafloy (kenneth@linuxtv.org) + * Copyright (C) 2005 Andrew de Quincey (adq_dvb@lidskialf.net) + * + * This library is free software; you can redistribute it and/or + * modify it under the terms of the GNU Lesser General Public + * License as published by the Free Software Foundation; either + * version 2.1 of the License, or (at your option) any later version. + * + * This library is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * Lesser General Public License for more details. + * + * You should have received a copy of the GNU Lesser General Public + * License along with this library; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA + */ + +#ifndef _UCSI_DVB_DEFAULT_AUTHORITY_DESCRIPTOR +#define _UCSI_DVB_DEFAULT_AUTHORITY_DESCRIPTOR 1 + +#ifdef __cplusplus +extern "C" +{ +#endif + +#include <libucsi/descriptor.h> +#include <libucsi/endianops.h> + +/** + * dvb_default_authority_descriptor structure. + */ +struct dvb_default_authority_descriptor { + struct descriptor d; + + /* char name[] */ +} __ucsi_packed; + +/** + * Process a dvb_default_authority_descriptor. + * + * @param d Generic descriptor pointer. + * @return dvb_default_authority_descriptor pointer, or NULL on error. + */ +static inline struct dvb_default_authority_descriptor* + dvb_default_authority_descriptor_codec(struct descriptor* d) +{ + return (struct dvb_default_authority_descriptor*) d; +} + +/** + * Accessor for the name field in a dvb_default_authority_descriptor. + * + * @param d dvb_default_authority_descriptor pointer. + * @return Pointer to the field. + */ +static inline uint8_t * + dvb_default_authority_descriptor_name(struct dvb_default_authority_descriptor *d) +{ + return (uint8_t *) d + sizeof(struct dvb_default_authority_descriptor); +} + +/** + * Calculate the length of the name field in a dvb_default_authority_descriptor. + * + * @param d dvb_default_authority_descriptor pointer. + * @return Length of the field in bytes. + */ +static inline int + dvb_default_authority_descriptor_name_length(struct dvb_default_authority_descriptor *d) +{ + return d->d.len; +} + +#ifdef __cplusplus +} +#endif + +#endif diff --git a/lib/libucsi/dvb/descriptor.h b/lib/libucsi/dvb/descriptor.h new file mode 100644 index 0000000..303e17a --- /dev/null +++ b/lib/libucsi/dvb/descriptor.h @@ -0,0 +1,229 @@ +/* + * section and descriptor parser + * + * Copyright (C) 2005 Kenneth Aafloy (kenneth@linuxtv.org) + * Copyright (C) 2005 Andrew de Quincey (adq_dvb@lidskialf.net) + * + * This library is free software; you can redistribute it and/or + * modify it under the terms of the GNU Lesser General Public + * License as published by the Free Software Foundation; either + * version 2.1 of the License, or (at your option) any later version. + * + * This library is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * Lesser General Public License for more details. + * + * You should have received a copy of the GNU Lesser General Public + * License along with this library; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA + */ + +#ifndef _UCSI_DVB_DESCRIPTOR_H +#define _UCSI_DVB_DESCRIPTOR_H 1 + +#ifdef __cplusplus +extern "C" +{ +#endif + +#include <libucsi/dvb/ac3_descriptor.h> +#include <libucsi/dvb/adaptation_field_data_descriptor.h> +#include <libucsi/dvb/ancillary_data_descriptor.h> +#include <libucsi/dvb/announcement_support_descriptor.h> +#include <libucsi/dvb/application_signalling_descriptor.h> +#include <libucsi/dvb/bouquet_name_descriptor.h> +#include <libucsi/dvb/ca_identifier_descriptor.h> +#include <libucsi/dvb/cable_delivery_descriptor.h> +#include <libucsi/dvb/cell_frequency_link_descriptor.h> +#include <libucsi/dvb/cell_list_descriptor.h> +#include <libucsi/dvb/component_descriptor.h> +#include <libucsi/dvb/content_descriptor.h> +#include <libucsi/dvb/content_identifier_descriptor.h> +#include <libucsi/dvb/country_availability_descriptor.h> +#include <libucsi/dvb/data_broadcast_descriptor.h> +#include <libucsi/dvb/data_broadcast_id_descriptor.h> +#include <libucsi/dvb/default_authority_descriptor.h> +#include <libucsi/dvb/dsng_descriptor.h> +#include <libucsi/dvb/extended_event_descriptor.h> +#include <libucsi/dvb/frequency_list_descriptor.h> +#include <libucsi/dvb/ip_mac_platform_name_descriptor.h> +#include <libucsi/dvb/ip_mac_platform_provider_name_descriptor.h> +#include <libucsi/dvb/ip_mac_stream_location_descriptor.h> +#include <libucsi/dvb/linkage_descriptor.h> +#include <libucsi/dvb/local_time_offset_descriptor.h> +#include <libucsi/dvb/mosaic_descriptor.h> +#include <libucsi/dvb/multilingual_bouquet_name_descriptor.h> +#include <libucsi/dvb/multilingual_component_descriptor.h> +#include <libucsi/dvb/multilingual_network_name_descriptor.h> +#include <libucsi/dvb/multilingual_service_name_descriptor.h> +#include <libucsi/dvb/network_name_descriptor.h> +#include <libucsi/dvb/nvod_reference_descriptor.h> +#include <libucsi/dvb/parental_rating_descriptor.h> +#include <libucsi/dvb/partial_transport_stream_descriptor.h> +#include <libucsi/dvb/pdc_descriptor.h> +#include <libucsi/dvb/private_data_specifier_descriptor.h> +#include <libucsi/dvb/related_content_descriptor.h> +#include <libucsi/dvb/satellite_delivery_descriptor.h> +#include <libucsi/dvb/s2_satellite_delivery_descriptor.h> +#include <libucsi/dvb/scrambling_descriptor.h> +#include <libucsi/dvb/service_availability_descriptor.h> +#include <libucsi/dvb/service_descriptor.h> +#include <libucsi/dvb/service_identifier_descriptor.h> +#include <libucsi/dvb/service_list_descriptor.h> +#include <libucsi/dvb/service_move_descriptor.h> +#include <libucsi/dvb/short_event_descriptor.h> +#include <libucsi/dvb/short_smoothing_buffer_descriptor.h> +#include <libucsi/dvb/stream_identifier_descriptor.h> +#include <libucsi/dvb/stuffing_descriptor.h> +#include <libucsi/dvb/subtitling_descriptor.h> +#include <libucsi/dvb/target_ip_address_descriptor.h> +#include <libucsi/dvb/target_ipv6_address_descriptor.h> +#include <libucsi/dvb/target_ip_slash_descriptor.h> +#include <libucsi/dvb/target_ip_source_slash_descriptor.h> +#include <libucsi/dvb/target_ipv6_slash_descriptor.h> +#include <libucsi/dvb/target_ipv6_source_slash_descriptor.h> +#include <libucsi/dvb/telephone_descriptor.h> +#include <libucsi/dvb/teletext_descriptor.h> +#include <libucsi/dvb/terrestrial_delivery_descriptor.h> +#include <libucsi/dvb/time_shifted_event_descriptor.h> +#include <libucsi/dvb/time_shifted_service_descriptor.h> +#include <libucsi/dvb/transport_stream_descriptor.h> +#include <libucsi/dvb/tva_id_descriptor.h> +#include <libucsi/dvb/vbi_data_descriptor.h> +#include <libucsi/dvb/vbi_teletext_descriptor.h> +#include <libucsi/endianops.h> + +/** + * The following are disabled because support is incomplete just now. + */ +/* +#include <libucsi/dvb/rnt_rar_over_dvb_stream_descriptor.h> +#include <libucsi/dvb/rnt_rar_over_ip_descriptor.h> +#include <libucsi/dvb/rnt_rnt_scan_descriptor.h> +#include <libucsi/dvb/ait_application_descriptor.h> +#include <libucsi/dvb/ait_application_name_descriptor.h> +#include <libucsi/dvb/ait_external_application_authorisation_descriptor.h> +#include <libucsi/dvb/ait_application_icons_descriptor.h> +*/ + +/** + * The following are not implemented just now + */ +/* +#include <libucsi/dvb/ait_transport_protocol_descriptor.h> +#include <libucsi/dvb/ait_dvb_j_application_descriptor.h> +#include <libucsi/dvb/ait_dvb_j_application_location_descriptor.h> +#include <libucsi/dvb/ait_dvb_html_application_descriptor.h> +#include <libucsi/dvb/ait_dvb_html_application_location_descriptor.h> +#include <libucsi/dvb/ait_dvb_html_application_boundary_descriptor.h> +#include <libucsi/dvb/ait_prefetch_descriptor.h> +#include <libucsi/dvb/ait_dii_location_descriptor.h> +#include <libucsi/dvb/ait_ip_signalling_descriptor.h> +*/ + +/** + * Enumeration of DVB descriptor tags. + */ +enum dvb_descriptor_tag { + dtag_dvb_network_name = 0x40, + dtag_dvb_service_list = 0x41, + dtag_dvb_stuffing = 0x42, + dtag_dvb_satellite_delivery_system = 0x43, + dtag_dvb_cable_delivery_system = 0x44, + dtag_dvb_vbi_data = 0x45, + dtag_dvb_vbi_teletext = 0x46, + dtag_dvb_bouquet_name = 0x47, + dtag_dvb_service = 0x48, + dtag_dvb_country_availability = 0x49, + dtag_dvb_linkage = 0x4a, + dtag_dvb_nvod_reference = 0x4b, + dtag_dvb_time_shifted_service = 0x4c, + dtag_dvb_short_event = 0x4d, + dtag_dvb_extended_event = 0x4e, + dtag_dvb_time_shifted_event = 0x4f, + dtag_dvb_component = 0x50, + dtag_dvb_mosaic = 0x51, + dtag_dvb_stream_identifier = 0x52, + dtag_dvb_ca_identifier = 0x53, + dtag_dvb_content = 0x54, + dtag_dvb_parental_rating = 0x55, + dtag_dvb_teletext = 0x56, + dtag_dvb_telephone = 0x57, + dtag_dvb_local_time_offset = 0x58, + dtag_dvb_subtitling = 0x59, + dtag_dvb_terrestial_delivery_system = 0x5a, + dtag_dvb_multilingual_network_name = 0x5b, + dtag_dvb_multilingual_bouquet_name = 0x5c, + dtag_dvb_multilingual_service_name = 0x5d, + dtag_dvb_multilingual_component = 0x5e, + dtag_dvb_private_data_specifier = 0x5f, + dtag_dvb_service_move = 0x60, + dtag_dvb_short_smoothing_buffer = 0x61, + dtag_dvb_frequency_list = 0x62, + dtag_dvb_partial_transport_stream = 0x63, + dtag_dvb_data_broadcast = 0x64, + dtag_dvb_scrambling = 0x65, + dtag_dvb_data_broadcast_id = 0x66, + dtag_dvb_transport_stream = 0x67, + dtag_dvb_dsng = 0x68, + dtag_dvb_pdc = 0x69, + dtag_dvb_ac3 = 0x6a, + dtag_dvb_ancillary_data = 0x6b, + dtag_dvb_cell_list = 0x6c, + dtag_dvb_cell_frequency_link = 0x6d, + dtag_dvb_announcement_support = 0x6e, + dtag_dvb_application_signalling = 0x6f, + dtag_dvb_adaptation_field_data = 0x70, + dtag_dvb_service_identifier = 0x71, + dtag_dvb_service_availability = 0x72, + dtag_dvb_default_authority = 0x73, + dtag_dvb_related_content = 0x74, + dtag_dvb_tva_id = 0x75, + dtag_dvb_content_identifier = 0x76, + dtag_dvb_time_slice_fec_identifier = 0x77, + dtag_dvb_ecm_repetition_rate = 0x78, + dtag_dvb_s2_satellite_delivery_descriptor= 0x79, + dtag_dvb_enhanced_ac3_descriptor = 0x7a, + dtag_dvb_dts_descriptor = 0x7b, + dtag_dvb_aac_descriptor = 0x7c, + dtag_dvb_extension_descriptor = 0x7f, + + /* descriptors which may only appear in an RNT */ + dtag_dvb_rnt_rar_over_dvb_stream = 0x40, + dtag_dvb_rnt_rar_over_ip = 0x41, + dtag_dvb_rnt_rnt_scan = 0x42, + + /* descriptors which may only appear in an AIT */ + dtag_dvb_ait_application = 0x00, + dtag_dvb_ait_application_name = 0x01, + dtag_dvb_ait_transport_protocol = 0x02, + dtag_dvb_ait_dvb_j_application = 0x03, + dtag_dvb_ait_dvb_j_application_location = 0x04, + dtag_dvb_ait_external_application_authorisation = 0x05, + dtag_dvb_ait_dvb_html_application = 0x08, + dtag_dvb_ait_dvb_html_application_location = 0x09, + dtab_dvb_ait_dvb_html_application_boundary = 0x0a, + dtag_dvb_ait_application_icons = 0x0b, + dtag_dvb_ait_prefetch = 0x0c, + dtag_dvb_ait_dii_location = 0x0d, + dtag_dvb_ait_ip_signalling = 0x11, + + /* descriptors which may only appear in INT */ + dtag_dvb_target_ip_address = 0x09, + dtag_dvb_target_ipv6_address = 0x0a, + dtag_dvb_ip_mac_platform_name = 0x0c, + dtag_dvb_ip_mac_platform_provider_name = 0x0d, + dtag_dvb_target_ip_slash = 0x0f, + dtag_dvb_target_ip_source_slash = 0x10, + dtag_dvb_target_ipv6_slash = 0x11, + dtag_dvb_target_ipv6_source_slash = 0x12, + dtag_dvb_ip_mac_stream_location = 0x13, + +}; + +#ifdef __cplusplus +} +#endif + +#endif diff --git a/lib/libucsi/dvb/dit_section.c b/lib/libucsi/dvb/dit_section.c new file mode 100644 index 0000000..4f69d4e --- /dev/null +++ b/lib/libucsi/dvb/dit_section.c @@ -0,0 +1,32 @@ +/* + * section and descriptor parser + * + * Copyright (C) 2005 Kenneth Aafloy (kenneth@linuxtv.org) + * Copyright (C) 2005 Andrew de Quincey (adq_dvb@lidskialf.net) + * + * This library is free software; you can redistribute it and/or + * modify it under the terms of the GNU Lesser General Public + * License as published by the Free Software Foundation; either + * version 2.1 of the License, or (at your option) any later version. + * + * This library is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * Lesser General Public License for more details. + * + * You should have received a copy of the GNU Lesser General Public + * License along with this library; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA + */ + +#include <libucsi/dvb/dit_section.h> + +struct dvb_dit_section * dvb_dit_section_codec(struct section * section) +{ + struct dvb_dit_section * ret = (struct dvb_dit_section *)section; + + if (section->length < 1) + return NULL; + + return ret; +} diff --git a/lib/libucsi/dvb/dit_section.h b/lib/libucsi/dvb/dit_section.h new file mode 100644 index 0000000..69fce4f --- /dev/null +++ b/lib/libucsi/dvb/dit_section.h @@ -0,0 +1,54 @@ +/* + * section and descriptor parser + * + * Copyright (C) 2005 Kenneth Aafloy (kenneth@linuxtv.org) + * Copyright (C) 2005 Andrew de Quincey (adq_dvb@lidskialf.net) + * + * This library is free software; you can redistribute it and/or + * modify it under the terms of the GNU Lesser General Public + * License as published by the Free Software Foundation; either + * version 2.1 of the License, or (at your option) any later version. + * + * This library is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * Lesser General Public License for more details. + * + * You should have received a copy of the GNU Lesser General Public + * License along with this library; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA + */ + +#ifndef _UCSI_DVB_DIT_SECTION_H +#define _UCSI_DVB_DIT_SECTION_H 1 + +#ifdef __cplusplus +extern "C" +{ +#endif + +#include <libucsi/section.h> + +/** + * dvb_dit_section structure. + */ +struct dvb_dit_section { + struct section head; + + EBIT2(uint8_t transition_flag : 1; , + uint8_t reserved : 7; ); +}; + +/** + * Process a dvb_dit_section. + * + * @param section Pointer to a generic section header. + * @return Pointer to a dvb_dit_section, or NULL on error. + */ +struct dvb_dit_section * dvb_dit_section_codec(struct section *section); + +#ifdef __cplusplus +} +#endif + +#endif diff --git a/lib/libucsi/dvb/dsng_descriptor.h b/lib/libucsi/dvb/dsng_descriptor.h new file mode 100644 index 0000000..6fd369b --- /dev/null +++ b/lib/libucsi/dvb/dsng_descriptor.h @@ -0,0 +1,80 @@ +/* + * section and descriptor parser + * + * Copyright (C) 2005 Kenneth Aafloy (kenneth@linuxtv.org) + * Copyright (C) 2005 Andrew de Quincey (adq_dvb@lidskialf.net) + * + * This library is free software; you can redistribute it and/or + * modify it under the terms of the GNU Lesser General Public + * License as published by the Free Software Foundation; either + * version 2.1 of the License, or (at your option) any later version. + * + * This library is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * Lesser General Public License for more details. + * + * You should have received a copy of the GNU Lesser General Public + * License along with this library; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA + */ + +#ifndef _UCSI_DVB_DSNG_DESCRIPTOR +#define _UCSI_DVB_DSNG_DESCRIPTOR 1 + +#ifdef __cplusplus +extern "C" +{ +#endif + +#include <libucsi/descriptor.h> +#include <libucsi/endianops.h> + +/** + * dvb_dsng_descriptor structure. + */ +struct dvb_dsng_descriptor { + struct descriptor d; + + /* uint8_t data[] */ +} __ucsi_packed; + +/** + * Process a dvb_dsng_descriptor. + * + * @param d Generic descriptor structure. + * @return Pointer to a dvb_dsng_descriptor, or NULL on error. + */ +static inline struct dvb_dsng_descriptor* + dvb_dsng_descriptor_codec(struct descriptor* d) +{ + return (struct dvb_dsng_descriptor*) d; +} + +/** + * Accessor for the data field in a dvb_dsng_descriptor. + * + * @param d dvb_dsng_descriptor pointer. + * @return Pointer to the field. + */ +static inline uint8_t *dvb_dsng_descriptor_data(struct dvb_dsng_descriptor *d) +{ + return (uint8_t *) d + sizeof(struct dvb_dsng_descriptor); +} + +/** + * Determine the length of the data field in a dvb_dsng_descriptor. + * + * @param d dvb_dsng_descriptor pointer. + * @return Length of the field in bytes. + */ +static inline int dvb_dsng_descriptor_data_length(struct dvb_dsng_descriptor *d) +{ + return d->d.len; +} + +#ifdef __cplusplus +} +#endif + +#endif diff --git a/lib/libucsi/dvb/eit_section.c b/lib/libucsi/dvb/eit_section.c new file mode 100644 index 0000000..97b0261 --- /dev/null +++ b/lib/libucsi/dvb/eit_section.c @@ -0,0 +1,63 @@ +/* + * section and descriptor parser + * + * Copyright (C) 2005 Kenneth Aafloy (kenneth@linuxtv.org) + * Copyright (C) 2005 Andrew de Quincey (adq_dvb@lidskialf.net) + * + * This library is free software; you can redistribute it and/or + * modify it under the terms of the GNU Lesser General Public + * License as published by the Free Software Foundation; either + * version 2.1 of the License, or (at your option) any later version. + * + * This library is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * Lesser General Public License for more details. + * + * You should have received a copy of the GNU Lesser General Public + * License along with this library; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA + */ + +#include <libucsi/dvb/eit_section.h> + +struct dvb_eit_section *dvb_eit_section_codec(struct section_ext * ext) +{ + uint8_t * buf = (uint8_t *) ext; + size_t pos = sizeof(struct section_ext); + size_t len = section_ext_length(ext); + + if (len < sizeof(struct dvb_eit_section)) + return NULL; + + bswap16(buf + pos); + pos += 2; + bswap16(buf + pos); + pos += 4; + + while (pos < len) { + struct dvb_eit_event * event = + (struct dvb_eit_event *) (buf + pos); + + if ((pos + sizeof(struct dvb_eit_event)) > len) + return NULL; + + bswap16(buf + pos); + bswap16(buf + pos + 10); + + pos += sizeof(struct dvb_eit_event); + + if ((pos + event->descriptors_loop_length) > len) + return NULL; + + if (verify_descriptors(buf + pos, event->descriptors_loop_length)) + return NULL; + + pos += event->descriptors_loop_length; + } + + if (pos != len) + return NULL; + + return (struct dvb_eit_section *) ext; +} diff --git a/lib/libucsi/dvb/eit_section.h b/lib/libucsi/dvb/eit_section.h new file mode 100644 index 0000000..a2f3e4f --- /dev/null +++ b/lib/libucsi/dvb/eit_section.h @@ -0,0 +1,160 @@ +/* + * section and descriptor parser + * + * Copyright (C) 2005 Kenneth Aafloy (kenneth@linuxtv.org) + * Copyright (C) 2005 Andrew de Quincey (adq_dvb@lidskialf.net) + * + * This library is free software; you can redistribute it and/or + * modify it under the terms of the GNU Lesser General Public + * License as published by the Free Software Foundation; either + * version 2.1 of the License, or (at your option) any later version. + * + * This library is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * Lesser General Public License for more details. + * + * You should have received a copy of the GNU Lesser General Public + * License along with this library; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA + */ + +#ifndef _UCSI_DVB_EIT_SECTION_H +#define _UCSI_DVB_EIT_SECTION_H 1 + +#ifdef __cplusplus +extern "C" +{ +#endif + +#include <libucsi/section.h> +#include <libucsi/dvb/types.h> + + +/** + * dvb_eit_section structure. + */ +struct dvb_eit_section { + struct section_ext head; + + uint16_t transport_stream_id; + uint16_t original_network_id; + uint8_t segment_last_section_number; + uint8_t last_table_id; + /* struct eit_event events[] */ +} __ucsi_packed; + +/** + * An entry in the events field of a dvb_eit_section. + */ +struct dvb_eit_event { + uint16_t event_id; + dvbdate_t start_time; + dvbduration_t duration; + EBIT3(uint16_t running_status : 3; , + uint16_t free_ca_mode : 1; , + uint16_t descriptors_loop_length:12; ); + /* struct descriptor descriptors[] */ +} __ucsi_packed; + +/** + * Process a dvb_eit_section. + * + * @param section Pointer to a generic section_ext structure. + * @return Pointer to a dvb_eit_section, or NULL on error. + */ +struct dvb_eit_section *dvb_eit_section_codec(struct section_ext *section); + +/** + * Accessor for the service_id field of an EIT. + * + * @param eit EIT pointer. + * @return The service_id. + */ +static inline uint16_t dvb_eit_section_service_id(struct dvb_eit_section *eit) +{ + return eit->head.table_id_ext; +} + +/** + * Iterator for the events field of a dvb_eit_section. + * + * @param eit dvb_eit_section pointer. + * @param pos Variable containing a pointer to the current dvb_eit_event. + */ +#define dvb_eit_section_events_for_each(eit, pos) \ + for ((pos) = dvb_eit_section_events_first(eit); \ + (pos); \ + (pos) = dvb_eit_section_events_next(eit, pos)) + +/** + * Iterator for the descriptors field of a dvb_eit_event. + * + * @param eit dvb_eit_event pointer. + * @param pos Variable containing a pointer to the current descriptor. + */ +#define dvb_eit_event_descriptors_for_each(event, pos) \ + for ((pos) = dvb_eit_event_descriptors_first(event); \ + (pos); \ + (pos) = dvb_eit_event_descriptors_next(event, pos)) + + + + + + + + + + +/******************************** PRIVATE CODE ********************************/ +static inline struct dvb_eit_event * + dvb_eit_section_events_first(struct dvb_eit_section *eit) +{ + size_t pos = sizeof(struct dvb_eit_section); + + if (pos >= section_ext_length(&eit->head)) + return NULL; + + return (struct dvb_eit_event*) ((uint8_t *) eit + pos); +} + +static inline struct dvb_eit_event * + dvb_eit_section_events_next(struct dvb_eit_section *eit, + struct dvb_eit_event *pos) +{ + uint8_t *end = (uint8_t*) eit + section_ext_length(&eit->head); + uint8_t *next = (uint8_t *) pos + + sizeof(struct dvb_eit_event) + + pos->descriptors_loop_length; + + if (next >= end) + return NULL; + + return (struct dvb_eit_event *) next; +} + +static inline struct descriptor * + dvb_eit_event_descriptors_first(struct dvb_eit_event * t) +{ + if (t->descriptors_loop_length == 0) + return NULL; + + return (struct descriptor *) + ((uint8_t *) t + sizeof(struct dvb_eit_event)); +} + +static inline struct descriptor * + dvb_eit_event_descriptors_next(struct dvb_eit_event * t, + struct descriptor* pos) +{ + return next_descriptor((uint8_t*) t + sizeof(struct dvb_eit_event), + t->descriptors_loop_length, + pos); +} + +#ifdef __cplusplus +} +#endif + +#endif diff --git a/lib/libucsi/dvb/extended_event_descriptor.h b/lib/libucsi/dvb/extended_event_descriptor.h new file mode 100644 index 0000000..bba04b0 --- /dev/null +++ b/lib/libucsi/dvb/extended_event_descriptor.h @@ -0,0 +1,232 @@ +/* + * section and descriptor parser + * + * Copyright (C) 2005 Kenneth Aafloy (kenneth@linuxtv.org) + * Copyright (C) 2005 Andrew de Quincey (adq_dvb@lidskialf.net) + * + * This library is free software; you can redistribute it and/or + * modify it under the terms of the GNU Lesser General Public + * License as published by the Free Software Foundation; either + * version 2.1 of the License, or (at your option) any later version. + * + * This library is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * Lesser General Public License for more details. + * + * You should have received a copy of the GNU Lesser General Public + * License along with this library; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA + */ + +#ifndef _UCSI_DVB_EXTENDED_EVENT_DESCRIPTOR +#define _UCSI_DVB_EXTENDED_EVENT_DESCRIPTOR 1 + +#ifdef __cplusplus +extern "C" +{ +#endif + +#include <libucsi/descriptor.h> +#include <libucsi/endianops.h> +#include <libucsi/types.h> + +/** + * dvb_extended_event_descriptor structure. + */ +struct dvb_extended_event_descriptor { + struct descriptor d; + + EBIT2(uint8_t descriptor_number : 4; , + uint8_t last_descriptor_number : 4; ); + iso639lang_t language_code; + uint8_t length_of_items; + /* struct dvb_extended_event_item items[] */ + /* struct dvb_extended_event_descriptor_part2 part2 */ +} __ucsi_packed; + +/** + * An entry in the items field of a dvb_extended_event_descriptor. + */ +struct dvb_extended_event_item { + uint8_t item_description_length; + /* uint8_t item_description[] */ + /* struct dvb_extended_event_item_part2 part2 */ +} __ucsi_packed; + +/** + * The second part of a dvb_extended_event_item, following the variable length + * description field. + */ +struct dvb_extended_event_item_part2 { + uint8_t item_length; + /* uint8_t item[] */ +} __ucsi_packed; + +/** + * The second part of a dvb_extended_event_descriptor, following the variable + * length items field. + */ +struct dvb_extended_event_descriptor_part2 { + uint8_t text_length; + /* uint8_t text[] */ +} __ucsi_packed; + +/** + * Process a dvb_extended_event_descriptor. + * + * @param d Generic descriptor structure. + * @return dvb_extended_event_descriptor pointer, or NULL on error. + */ +static inline struct dvb_extended_event_descriptor* + dvb_extended_event_descriptor_codec(struct descriptor* d) +{ + uint8_t* buf = (uint8_t*) d + 2; + uint32_t pos = 0; + uint32_t len = d->len; + struct dvb_extended_event_descriptor * p = + (struct dvb_extended_event_descriptor *) d; + struct dvb_extended_event_descriptor_part2 *p2; + + pos += sizeof(struct dvb_extended_event_descriptor) - 2; + + if (pos > len) + return NULL; + + pos += p->length_of_items; + + if (pos > len) + return NULL; + + p2 = (struct dvb_extended_event_descriptor_part2*) (buf+pos); + + pos += sizeof(struct dvb_extended_event_descriptor_part2); + + if (pos > len) + return NULL; + + pos += p2->text_length; + + if (pos != len) + return NULL; + + return p; +} + +/** + * Iterator for the items field of a dvb_extended_event_descriptor. + * + * @param d dvb_extended_event_descriptor pointer. + * @param pos Variable containing a pointer to the current dvb_extended_event_item. + */ +#define dvb_extended_event_descriptor_items_for_each(d, pos) \ + for ((pos) = dvb_extended_event_descriptor_items_first(d); \ + (pos); \ + (pos) = dvb_extended_event_descriptor_items_next(d, pos)) + +/** + * Accessor for the description field of a dvb_extended_event_item. + * + * @param d dvb_extended_event_item pointer. + * @return Pointer to the field. + */ +static inline uint8_t* + dvb_extended_event_item_description(struct dvb_extended_event_item *d) +{ + return (uint8_t*) d + sizeof(struct dvb_extended_event_item); +} + +/** + * Accessor for the second part of a dvb_extended_event_item. + * + * @param dvb_extended_event_item pointer. + * @return dvb_extended_event_item_part2 pointer. + */ +static inline struct dvb_extended_event_item_part2* + dvb_extended_event_item_part2(struct dvb_extended_event_item *d) +{ + return (struct dvb_extended_event_item_part2*) + ((uint8_t*) d + sizeof(struct dvb_extended_event_item) + + d->item_description_length); +} + +/** + * Accessor for the item field of a dvb_extended_event_item_part2. + * + * @param d dvb_extended_event_item_part2 pointer. + * @return Pointer to the item field. + */ +static inline uint8_t* + dvb_extended_event_item_part2_item(struct dvb_extended_event_item_part2 *d) +{ + return (uint8_t*) d + sizeof(struct dvb_extended_event_item_part2); +} + +/** + * Accessor for the second part of a dvb_extended_event_descriptor. + * + * @param d dvb_extended_event_descriptor pointer. + * @return dvb_extended_event_descriptor_part2 pointer. + */ +static inline struct dvb_extended_event_descriptor_part2* + dvb_extended_event_descriptor_part2(struct dvb_extended_event_descriptor *d) +{ + return (struct dvb_extended_event_descriptor_part2*) + ((uint8_t*) d + sizeof(struct dvb_extended_event_descriptor) + + d->length_of_items); +} + +/** + * Accessor for the text field of an dvb_extended_event_descriptor_part2. + * + * @param d dvb_extended_event_descriptor_part2 pointer. + * @return Pointer to the text field. + */ +static inline uint8_t* + dvb_extended_event_descriptor_part2_text(struct dvb_extended_event_descriptor_part2 *d) +{ + return (uint8_t*) + ((uint8_t*) d + sizeof(struct dvb_extended_event_descriptor_part2)); +} + + + + + + + + + +/******************************** PRIVATE CODE ********************************/ +static inline struct dvb_extended_event_item* + dvb_extended_event_descriptor_items_first(struct dvb_extended_event_descriptor *d) +{ + if (d->length_of_items == 0) + return NULL; + + return (struct dvb_extended_event_item *) + ((uint8_t*) d + sizeof(struct dvb_extended_event_descriptor)); +} + +static inline struct dvb_extended_event_item* + dvb_extended_event_descriptor_items_next(struct dvb_extended_event_descriptor *d, + struct dvb_extended_event_item *pos) +{ + struct dvb_extended_event_item_part2* part2 = + dvb_extended_event_item_part2(pos); + uint8_t *end = (uint8_t*) d + sizeof(struct dvb_extended_event_descriptor) + d->length_of_items; + uint8_t *next = (uint8_t *) part2 + + sizeof(struct dvb_extended_event_item_part2) + + part2->item_length; + + if (next >= end) + return NULL; + + return (struct dvb_extended_event_item *) next; +} + +#ifdef __cplusplus +} +#endif + +#endif diff --git a/lib/libucsi/dvb/frequency_list_descriptor.h b/lib/libucsi/dvb/frequency_list_descriptor.h new file mode 100644 index 0000000..4c18cec --- /dev/null +++ b/lib/libucsi/dvb/frequency_list_descriptor.h @@ -0,0 +1,107 @@ +/* + * section and descriptor parser + * + * Copyright (C) 2005 Kenneth Aafloy (kenneth@linuxtv.org) + * Copyright (C) 2005 Andrew de Quincey (adq_dvb@lidskialf.net) + * + * This library is free software; you can redistribute it and/or + * modify it under the terms of the GNU Lesser General Public + * License as published by the Free Software Foundation; either + * version 2.1 of the License, or (at your option) any later version. + * + * This library is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * Lesser General Public License for more details. + * + * You should have received a copy of the GNU Lesser General Public + * License along with this library; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA + */ + +#ifndef _UCSI_DVB_FREQUENCY_LIST_DESCRIPTOR +#define _UCSI_DVB_FREQUENCY_LIST_DESCRIPTOR 1 + +#ifdef __cplusplus +extern "C" +{ +#endif + +#include <libucsi/descriptor.h> +#include <libucsi/endianops.h> + +/** + * Possible values for coding_type. + */ +enum { + DVB_CODING_TYPE_SATELLITE = 0x01, + DVB_CODING_TYPE_CABLE = 0x02, + DVB_CODING_TYPE_TERRESTRIAL = 0x03, +}; + +/** + * dvb_frequency_list_descriptor structure. + */ +struct dvb_frequency_list_descriptor { + struct descriptor d; + + EBIT2(uint8_t reserved : 6; , + uint8_t coding_type : 2; ); + /* uint32_t centre_frequencies [] */ +} __ucsi_packed; + +/** + * Process a dvb_frequency_list_descriptor. + * + * @param d Pointer to a generic descriptor structure. + * @return dvb_frequency_list_descriptor pointer, or NULL on error. + */ +static inline struct dvb_frequency_list_descriptor* + dvb_frequency_list_descriptor_codec(struct descriptor* d) +{ + uint32_t pos = 0; + uint8_t* buf = (uint8_t*) d + 2; + uint32_t len = d->len; + + pos += sizeof(struct dvb_frequency_list_descriptor) - 2; + + if ((len - pos) % 4) + return NULL; + + while(pos < len) { + bswap32(buf+pos); + pos += 4; + } + + return (struct dvb_frequency_list_descriptor*) d; +} + +/** + * Accessor for the centre_frequencies field of a dvb_frequency_list_descriptor. + * + * @param d dvb_frequency_list_descriptor pointer. + * @return Pointer to the field. + */ +static inline uint32_t * + dvb_frequency_list_descriptor_centre_frequencies(struct dvb_frequency_list_descriptor *d) +{ + return (uint32_t *) ((uint8_t *) d + sizeof(struct dvb_frequency_list_descriptor)); +} + +/** + * Determine the number of entries in the centre_frequencies field of a dvb_frequency_list_descriptor. + * + * @param d dvb_frequency_list_descriptor pointer. + * @return The number of entries. + */ +static inline int + dvb_frequency_list_descriptor_centre_frequencies_count(struct dvb_frequency_list_descriptor *d) +{ + return (d->d.len - 1) >> 2; +} + +#ifdef __cplusplus +} +#endif + +#endif diff --git a/lib/libucsi/dvb/int_section.c b/lib/libucsi/dvb/int_section.c new file mode 100644 index 0000000..c2bb15f --- /dev/null +++ b/lib/libucsi/dvb/int_section.c @@ -0,0 +1,79 @@ +/* + * section and descriptor parser + * + * Copyright (C) 2005 Kenneth Aafloy (kenneth@linuxtv.org) + * Copyright (C) 2005 Andrew de Quincey (adq_dvb@lidskialf.net) + * Copyright (C) 2005 Patrick Boettcher (pb@linuxtv.org) + * + * This library is free software; you can redistribute it and/or + * modify it under the terms of the GNU Lesser General Public + * License as published by the Free Software Foundation; either + * version 2.1 of the License, or (at your option) any later version. + * + * This library is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * Lesser General Public License for more details. + * + * You should have received a copy of the GNU Lesser General Public + * License along with this library; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA + */ + +#include <libucsi/dvb/int_section.h> + +struct dvb_int_section * dvb_int_section_codec(struct section_ext *ext) +{ + uint8_t *buf = (uint8_t *) ext; + struct dvb_int_section *in = (struct dvb_int_section *) ext; + size_t pos = sizeof(struct section_ext); + size_t len = section_ext_length(ext); + + if (len < sizeof(struct dvb_int_section)) + return NULL; + + bswap32(buf+8); + bswap16(buf+12); + pos += 6; + + if (len - pos < in->platform_descriptors_length) + return NULL; + + if (verify_descriptors(buf + pos, in->platform_descriptors_length)) + return NULL; + + pos += in->platform_descriptors_length; + + while (pos < len) { + struct dvb_int_target *s2 = (struct dvb_int_target *) (buf + pos); + struct dvb_int_operational_loop *s3; + + bswap16(buf + pos); /* target_descriptor_loop_length swap */ + + if (len - pos < s2->target_descriptors_length) + return NULL; + + pos += sizeof(struct dvb_int_target); + + if (verify_descriptors(buf + pos, s2->target_descriptors_length)) + return NULL; + + pos += s2->target_descriptors_length; + + s3 = (struct dvb_int_operational_loop *) (buf + pos); + + bswap16(buf + pos); /* operational_descriptor_loop_length swap */ + + if (len - pos < s3->operational_descriptors_length) + return NULL; + + pos += sizeof(struct dvb_int_operational_loop); + + if (verify_descriptors(buf + pos, s3->operational_descriptors_length)) + return NULL; + + pos += s3->operational_descriptors_length; + } + + return (struct dvb_int_section *) ext; +} diff --git a/lib/libucsi/dvb/int_section.h b/lib/libucsi/dvb/int_section.h new file mode 100644 index 0000000..932c0e8 --- /dev/null +++ b/lib/libucsi/dvb/int_section.h @@ -0,0 +1,245 @@ +/* + * section and descriptor parser + * + * Copyright (C) 2005 Kenneth Aafloy (kenneth@linuxtv.org) + * Copyright (C) 2005 Andrew de Quincey (adq_dvb@lidskialf.net) + * Copyright (C) 2005 Patrick Boettcher (pb@linuxtv.org) + * + * This library is free software; you can redistribute it and/or + * modify it under the terms of the GNU Lesser General Public + * License as published by the Free Software Foundation; either + * version 2.1 of the License, or (at your option) any later version. + * + * This library is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * Lesser General Public License for more details. + * + * You should have received a copy of the GNU Lesser General Public + * License along with this library; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA + */ +#ifndef _UCSI_DVB_INT_SECTION_H +#define _UCSI_DVB_INT_SECTION_H + +#ifdef __cplusplus +extern "C" +{ +#endif + +#include <libucsi/section.h> + +/** + * dvb_int_section structure - IP/MAC notification section. + */ +struct dvb_int_section { + struct section_ext head; + + EBIT2(uint32_t platform_id :24; , + uint32_t processing_order : 8; ); + EBIT2(uint16_t reserved2 : 4; , + uint16_t platform_descriptors_length :12; ); + /* struct descriptor platform_descriptors[] */ + /* struct dvb_int_target target_loop[] */ +} __ucsi_packed; + +/** + * An entry in the target_loop field of a dvb_int_section. + */ +struct dvb_int_target { + EBIT2(uint16_t reserved3 : 4; , + uint16_t target_descriptors_length :12; ); + /* struct descriptor target_descriptors[] */ + /* struct dvb_int_operational_loop operational_loop */ +} __ucsi_packed; + +/** + * The operational_loop field in a dvb_int_target. + */ +struct dvb_int_operational_loop { + EBIT2(uint16_t reserved4 : 4; , + uint16_t operational_descriptors_length :12; ); + /* struct descriptor operational_descriptors[] */ +} __ucsi_packed; + +/** + * Process a dvb_int_section. + * + * @param section Generic section_ext pointer. + * @return dvb_int_section pointer, or NULL on error. + */ +extern struct dvb_int_section * dvb_int_section_codec(struct section_ext *section); + +/** + * Accessor for the action_type field of an INT. + * + * @param intp INT pointer. + * @return The action_type. + */ +static inline uint8_t dvb_int_section_action_type(struct dvb_int_section *intp) +{ + return intp->head.table_id_ext >> 8; +} + +/** + * Accessor for the platform_id_hash field of an INT. + * + * @param intp INT pointer. + * @return The platform_id_hash. + */ +static inline uint8_t dvb_int_section_platform_id_hash(struct dvb_int_section *intp) +{ + return intp->head.table_id_ext & 0xff; +} + +/** + * Iterator for platform_descriptors field in a dvb_int_section. + * + * @param intp dvb_int_section pointer. + * @param pos Variable holding a pointer to the current descriptor. + */ +#define dvb_int_section_platform_descriptors_for_each(intp, pos) \ + for ((pos) = dvb_int_section_platform_descriptors_first(intp); \ + (pos); \ + (pos) = dvb_int_section_platform_descriptors_next(intp, pos)) + +/** + * Iterator for the target_loop field in a dvb_int_section. + * + * @param intp dvb_int_section pointer. + * @param pos Variable holding a pointer to the current dvb_int_target. + */ +#define dvb_int_section_target_loop_for_each(intp,pos) \ + for ((pos) = dvb_int_section_target_loop_first(intp); \ + (pos); \ + (pos) = dvb_int_section_target_loop_next(intp, pos)) + +/** + * Iterator for the target_descriptors field in a dvb_int_target. + * + * @param target dvb_int_target pointer. + * @param pos Variable holding a pointer to the current descriptor. + */ +#define dvb_int_target_target_descriptors_for_each(target, pos) \ + for ((pos) = dvb_int_target_target_descriptors_first(target); \ + (pos); \ + (pos) = dvb_int_target_target_descriptors_next(target, pos)) + +/** + * Accessor for the operational_loop field of a dvb_int_target. + * + * @param target dvb_int_target pointer. + * @return Pointer to a dvb_int_operational_loop. + */ +static inline struct dvb_int_operational_loop * + dvb_int_target_operational_loop(struct dvb_int_target *target) +{ + return (struct dvb_int_operational_loop *) + ((uint8_t *) target + sizeof(struct dvb_int_target) + target->target_descriptors_length); +} + +/** + * Iterator for the operational_descriptors field in a dvb_int_operational_loop. + * + * @param oploop dvb_int_operational_loop pointer. + * @param pos Variable holding a pointer to the current descriptor. + */ +#define dvb_int_operational_loop_operational_descriptors_for_each(oploop, pos) \ + for ((pos) = dvb_int_operational_loop_operational_descriptors_first(oploop); \ + (pos); \ + (pos) = dvb_int_operational_loop_operational_descriptors_next(oploop, pos)) + + + + + +/******************************** PRIVATE CODE ********************************/ +static inline struct descriptor * + dvb_int_section_platform_descriptors_first(struct dvb_int_section *in) +{ + if (in->platform_descriptors_length == 0) + return NULL; + + return (struct descriptor *) + ((uint8_t *) in + sizeof(struct dvb_int_section)); +} + +static inline struct descriptor * + dvb_int_section_platform_descriptors_next(struct dvb_int_section *in, + struct descriptor* pos) +{ + return next_descriptor((uint8_t*) in + sizeof(struct dvb_int_section), + in->platform_descriptors_length, + pos); +} + +static inline struct dvb_int_target * + dvb_int_section_target_loop_first(struct dvb_int_section *in) +{ + if (sizeof(struct dvb_int_section) + in->platform_descriptors_length >= (uint32_t) section_ext_length((struct section_ext *) in)) + return NULL; + + return (struct dvb_int_target *) + ((uint8_t *) in + sizeof(struct dvb_int_section) + in->platform_descriptors_length); +} + +static inline struct dvb_int_target * + dvb_int_section_target_loop_next(struct dvb_int_section *in, + struct dvb_int_target *pos) +{ + struct dvb_int_operational_loop *ol = dvb_int_target_operational_loop(pos); + struct dvb_int_target *next = + (struct dvb_int_target *) ( (uint8_t *) pos + + sizeof(struct dvb_int_target) + pos->target_descriptors_length + + sizeof(struct dvb_int_operational_loop) + ol->operational_descriptors_length); + struct dvb_int_target *end = + (struct dvb_int_target *) ((uint8_t *) in + section_ext_length((struct section_ext *) in) ); + + if (next >= end) + return 0; + return next; +} + +static inline struct descriptor * + dvb_int_target_target_descriptors_first(struct dvb_int_target *tl) +{ + if (tl->target_descriptors_length == 0) + return NULL; + + return (struct descriptor *) + ((uint8_t *) tl + sizeof(struct dvb_int_target)); +} + +static inline struct descriptor * + dvb_int_target_target_descriptors_next(struct dvb_int_target *tl, + struct descriptor* pos) +{ + return next_descriptor((uint8_t*) tl + sizeof(struct dvb_int_target), + tl->target_descriptors_length, + pos); +} + +static inline struct descriptor * + dvb_int_operational_loop_operational_descriptors_first(struct dvb_int_operational_loop *ol) +{ + if (ol->operational_descriptors_length == 0) + return NULL; + + return (struct descriptor *) + ((uint8_t *) ol + sizeof(struct dvb_int_operational_loop)); +} + +static inline struct descriptor * + dvb_int_operational_loop_operational_descriptors_next(struct dvb_int_operational_loop *ol, + struct descriptor* pos) +{ + return next_descriptor((uint8_t*) ol + sizeof(struct dvb_int_operational_loop), + ol->operational_descriptors_length, + pos); +} + +#ifdef __cplusplus +} +#endif + +#endif diff --git a/lib/libucsi/dvb/ip_mac_platform_name_descriptor.h b/lib/libucsi/dvb/ip_mac_platform_name_descriptor.h new file mode 100644 index 0000000..c470e89 --- /dev/null +++ b/lib/libucsi/dvb/ip_mac_platform_name_descriptor.h @@ -0,0 +1,87 @@ +/* + * section and descriptor parser + * + * Copyright (C) 2005 Kenneth Aafloy (kenneth@linuxtv.org) + * Copyright (C) 2005 Andrew de Quincey (adq_dvb@lidskialf.net) + * Copyright (C) 2006 Stephane Este-Gracias (sestegra@free.fr) + * + * This library is free software; you can redistribute it and/or + * modify it under the terms of the GNU Lesser General Public + * License as published by the Free Software Foundation; either + * version 2.1 of the License, or (at your option) any later version. + * + * This library is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * Lesser General Public License for more details. + * + * You should have received a copy of the GNU Lesser General Public + * License along with this library; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA + */ + +#ifndef _UCSI_DVB_IP_MAC_PLATFORM_NAME_DESCRIPTOR +#define _UCSI_DVB_IP_MAC_PLATFORM_NAME_DESCRIPTOR 1 + +#ifdef __cplusplus +extern "C" +{ +#endif + +#include <libucsi/descriptor.h> +#include <libucsi/types.h> + +/** + * dvb_ip_platform_name_descriptor structure. + */ +struct dvb_ip_platform_name_descriptor { + struct descriptor d; + + iso639lang_t language_code; + /* uint8_t text[] */ +} __ucsi_packed; + +/** + * Process a dvb_ip_platform_name_descriptor. + * + * @param d Pointer to a generic descriptor. + * @return dvb_ip_platform_name_descriptor pointer, or NULL on error. + */ +static inline struct dvb_ip_platform_name_descriptor* + dvb_ip_platform_name_descriptor_codec(struct descriptor* d) +{ + if (d->len < (sizeof(struct dvb_ip_platform_name_descriptor) - 2)) + return NULL; + + return (struct dvb_ip_platform_name_descriptor*) d; +} + +/** + * Accessor for the text field of a dvb_ip_platform_name_descriptor. + * + * @param d dvb_ip_platform_name_descriptor pointer. + * @return Pointer to the field. + */ +static inline uint8_t * + dvb_ip_platform_name_descriptor_text(struct dvb_ip_platform_name_descriptor *d) +{ + return (uint8_t *) d + sizeof(struct dvb_ip_platform_name_descriptor); +} + +/** + * Determine the length of the text field of a dvb_ip_platform_name_descriptor. + * + * @param d dvb_ip_platform_name_descriptor pointer. + * @return Length of the field in bytes. + */ +static inline int + dvb_ip_platform_name_descriptor_text_length(struct dvb_ip_platform_name_descriptor *d) +{ + return d->d.len - 3; +} + +#ifdef __cplusplus +} +#endif + +#endif diff --git a/lib/libucsi/dvb/ip_mac_platform_provider_name_descriptor.h b/lib/libucsi/dvb/ip_mac_platform_provider_name_descriptor.h new file mode 100644 index 0000000..ba95b8f --- /dev/null +++ b/lib/libucsi/dvb/ip_mac_platform_provider_name_descriptor.h @@ -0,0 +1,87 @@ +/* + * section and descriptor parser + * + * Copyright (C) 2005 Kenneth Aafloy (kenneth@linuxtv.org) + * Copyright (C) 2005 Andrew de Quincey (adq_dvb@lidskialf.net) + * Copyright (C) 2006 Stephane Este-Gracias (sestegra@free.fr) + * + * This library is free software; you can redistribute it and/or + * modify it under the terms of the GNU Lesser General Public + * License as published by the Free Software Foundation; either + * version 2.1 of the License, or (at your option) any later version. + * + * This library is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * Lesser General Public License for more details. + * + * You should have received a copy of the GNU Lesser General Public + * License along with this library; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA + */ + +#ifndef _UCSI_DVB_IP_MAC_PLATFORM_PROVIDER_NAME_DESCRIPTOR +#define _UCSI_DVB_IP_MAC_PLATFORM_PROVIDER_NAME_DESCRIPTOR 1 + +#ifdef __cplusplus +extern "C" +{ +#endif + +#include <libucsi/descriptor.h> +#include <libucsi/types.h> + +/** + * dvb_ip_platform_provider_name_descriptor structure. + */ +struct dvb_ip_platform_provider_name_descriptor { + struct descriptor d; + + iso639lang_t language_code; + /* uint8_t text[] */ +} __ucsi_packed; + +/** + * Process a dvb_ip_platform_provider_name_descriptor. + * + * @param d Pointer to a generic descriptor. + * @return dvb_ip_platform_provider_name_descriptor pointer, or NULL on error. + */ +static inline struct dvb_ip_platform_provider_name_descriptor* + dvb_ip_platform_provider_name_descriptor_codec(struct descriptor* d) +{ + if (d->len < (sizeof(struct dvb_ip_platform_provider_name_descriptor) - 2)) + return NULL; + + return (struct dvb_ip_platform_provider_name_descriptor*) d; +} + +/** + * Accessor for the text field of a dvb_ip_platform_provider_name_descriptor. + * + * @param d dvb_ip_platform_provider_name_descriptor pointer. + * @return Pointer to the field. + */ +static inline uint8_t * + dvb_ip_platform_provider_name_descriptor_text(struct dvb_ip_platform_provider_name_descriptor *d) +{ + return (uint8_t *) d + sizeof(struct dvb_ip_platform_provider_name_descriptor); +} + +/** + * Determine the length of the text field of a dvb_ip_platform_provider_name_descriptor. + * + * @param d dvb_ip_platform_provider_name_descriptor pointer. + * @return Length of the field in bytes. + */ +static inline int + dvb_ip_platform_provider_name_descriptor_text_length(struct dvb_ip_platform_provider_name_descriptor *d) +{ + return d->d.len - 3; +} + +#ifdef __cplusplus +} +#endif + +#endif diff --git a/lib/libucsi/dvb/ip_mac_stream_location_descriptor.h b/lib/libucsi/dvb/ip_mac_stream_location_descriptor.h new file mode 100644 index 0000000..36216d6 --- /dev/null +++ b/lib/libucsi/dvb/ip_mac_stream_location_descriptor.h @@ -0,0 +1,73 @@ +/* + * section and descriptor parser + * + * Copyright (C) 2005 Kenneth Aafloy (kenneth@linuxtv.org) + * Copyright (C) 2005 Andrew de Quincey (adq_dvb@lidskialf.net) + * Copyright (C) 2006 Stephane Este-Gracias (sestegra@free.fr) + * + * This library is free software; you can redistribute it and/or + * modify it under the terms of the GNU Lesser General Public + * License as published by the Free Software Foundation; either + * version 2.1 of the License, or (at your option) any later version. + * + * This library is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * Lesser General Public License for more details. + * + * You should have received a copy of the GNU Lesser General Public + * License along with this library; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA + */ + +#ifndef _UCSI_DVB_IP_MAC_STREAM_LOCATION_DESCRIPTOR +#define _UCSI_DVB_IP_MAC_PLATFORM_PROVIDER_NAME_DESCRIPTOR 1 + +#ifdef __cplusplus +extern "C" +{ +#endif + +#include <libucsi/descriptor.h> +#include <libucsi/types.h> + +/** + * dvb_ip_mac_stream_location_descriptor structure. + */ +struct dvb_ip_mac_stream_location_descriptor { + struct descriptor d; + + uint16_t network_id; + uint16_t original_network_id; + uint16_t transport_stream_id; + uint16_t service_id; + uint8_t component_tag; +} __ucsi_packed; + +/** + * Process a dvb_ip_mac_stream_location_descriptor. + * + * @param d Generic descriptor pointer. + * @return dvb_ip_mac_stream_location_descriptor pointer, or NULL on error. + */ +static inline struct dvb_ip_mac_stream_location_descriptor* + dvb_ip_mac_stream_location_descriptor_codec(struct descriptor* d) +{ + uint8_t* buf = (uint8_t*) d + 2; + + if (d->len != (sizeof(struct dvb_ip_mac_stream_location_descriptor) - 2)) + return NULL; + + bswap16(buf); + bswap16(buf+2); + bswap16(buf+4); + bswap16(buf+6); + + return (struct dvb_ip_mac_stream_location_descriptor*) d; +} + +#ifdef __cplusplus +} +#endif + +#endif diff --git a/lib/libucsi/dvb/linkage_descriptor.h b/lib/libucsi/dvb/linkage_descriptor.h new file mode 100644 index 0000000..d2be789 --- /dev/null +++ b/lib/libucsi/dvb/linkage_descriptor.h @@ -0,0 +1,480 @@ +/* + * section and descriptor parser + * + * Copyright (C) 2005 Kenneth Aafloy (kenneth@linuxtv.org) + * Copyright (C) 2005 Andrew de Quincey (adq_dvb@lidskialf.net) + * + * This library is free software; you can redistribute it and/or + * modify it under the terms of the GNU Lesser General Public + * License as published by the Free Software Foundation; either + * version 2.1 of the License, or (at your option) any later version. + * + * This library is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * Lesser General Public License for more details. + * + * You should have received a copy of the GNU Lesser General Public + * License along with this library; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA + */ + +#ifndef _UCSI_DVB_LINKAGE_DESCRIPTOR +#define _UCSI_DVB_LINKAGE_DESCRIPTOR 1 + +#ifdef __cplusplus +extern "C" +{ +#endif + +#include <libucsi/descriptor.h> +#include <libucsi/endianops.h> +#include <libucsi/types.h> + +/** + * Possible values for linkage_type. + */ +enum { + DVB_LINKAGE_TYPE_INFORMATION = 0x01, + DVB_LINKAGE_TYPE_EPG = 0x02, + DVB_LINKAGE_TYPE_CA_REPLACEMENT = 0x03, + DVB_LINKAGE_TYPE_TS_WITH_BAT_NIT = 0x04, + DVB_LINKAGE_TYPE_SERVICE_REPLACMENT = 0x05, + DVB_LINKAGE_TYPE_DATA_BCAST = 0x06, + DVB_LINKAGE_TYPE_RCS_MAP = 0x07, + DVB_LINKAGE_TYPE_MOBILE_HANDOVER = 0x08, + DVB_LINKAGE_TYPE_SOFTWARE_UPDATE = 0x09, + DVB_LINKAGE_TYPE_TS_WITH_SSU_BAT_NIT = 0x0a, + DVB_LINKAGE_TYPE_IP_MAC_NOTIFICATION = 0x0b, + DVB_LINKAGE_TYPE_TS_WITH_INT_BAT_NIT = 0x0c, +}; + +/** + * Possible values for hand_over_type. + */ +enum { + DVB_HAND_OVER_TYPE_IDENTICAL_NEIGHBOURING_COUNTRY = 0x01, + DVB_HAND_OVER_TYPE_LOCAL_VARIATION = 0x02, + DVB_HAND_OVER_TYPE_ASSOCIATED_SERVICE = 0x03, +}; + +/** + * Possible values for origin_type. + */ +enum { + DVB_ORIGIN_TYPE_NIT = 0x00, + DVB_ORIGIN_TYPE_SDT = 0x01, +}; + +/** + * dvb_linkage_descriptor structure. + */ +struct dvb_linkage_descriptor { + struct descriptor d; + + uint16_t transport_stream_id; + uint16_t original_network_id; + uint16_t service_id; + uint8_t linkage_type; + /* uint8_t data[] */ +} __ucsi_packed; + +/** + * Data for a linkage_type of 0x08. + */ +struct dvb_linkage_data_08 { + EBIT3(uint8_t hand_over_type : 4; , + uint8_t reserved : 3; , + uint8_t origin_type : 1; ); + /* uint16_t network_id if hand_over_type == 1,2,3 */ + /* uint16_t initial_service_id if origin_type = 0 */ + /* uint8_t data[] */ +} __ucsi_packed; + +/** + * Data for an linkage_type of 0x0b (IP/MAC Notification Table). + */ +struct dvb_linkage_data_0b { + uint8_t platform_id_data_length; + /* struct platform_id ids[] */ +} __ucsi_packed; + +/** + * Entries in the ids field of a dvb_linkage_data_0b. + */ +struct dvb_platform_id { + EBIT2(uint32_t platform_id : 24; , + uint8_t platform_name_loop_length : 8; ); + /* struct platform_name names[] */ +} __ucsi_packed; + +/** + * Entries in the names field of a dvb_platform_id. + */ +struct dvb_platform_name { + iso639lang_t language_code; + uint8_t platform_name_length; + /* uint8_t text[] */ +} __ucsi_packed; + +/** + * Data for a linkage_type of 0x0c (IP/MAC Notification Table). + */ +struct dvb_linkage_data_0c { + uint8_t table_type; + /* uint16_t bouquet_id if table_type == 0x02 */ +} __ucsi_packed; + + +/** + * Process a dvb_linkage_descriptor. + * + * @param d Generic descriptor pointer. + * @return dvb_linkage_descriptor pointer, or NULL on error. + */ +static inline struct dvb_linkage_descriptor* + dvb_linkage_descriptor_codec(struct descriptor* d) +{ + uint32_t pos = 0; + uint8_t* buf = (uint8_t*) d + 2; + uint32_t len = d->len; + struct dvb_linkage_descriptor *p = + (struct dvb_linkage_descriptor*) d; + + if (len < (sizeof(struct dvb_linkage_descriptor) - 2)) + return NULL; + + bswap16(buf); + bswap16(buf+2); + bswap16(buf+4); + + pos += sizeof(struct dvb_linkage_descriptor) - 2; + + if (p->linkage_type == 0x08) { + struct dvb_linkage_data_08 *d08; + + if ((len - pos) < sizeof(struct dvb_linkage_data_08)) + return NULL; + d08 = (struct dvb_linkage_data_08 *) (buf+pos); + pos += sizeof(struct dvb_linkage_data_08); + + switch(d08->hand_over_type) { + case 1: + case 2: + case 3: + if ((len - pos) < 2) + return NULL; + bswap16(buf+pos); + pos += 2; + break; + } + if (d08->origin_type == 0) { + if ((len - pos) < 2) + return NULL; + bswap16(buf+pos); + pos+=2; + } + + } else if (p->linkage_type == 0x0b) { + uint32_t pos2=0; + struct dvb_linkage_data_0b *l_0b = (struct dvb_linkage_data_0b *) (buf + pos); + + if ((len - pos) < sizeof(struct dvb_linkage_data_0b)) + return NULL; + + pos += sizeof(struct dvb_linkage_data_0b); + if ((len - pos) < l_0b->platform_id_data_length) + return NULL; + + while (pos2 < l_0b->platform_id_data_length) { + bswap32(buf + pos + pos2); + + struct dvb_platform_id *p_id = (struct dvb_platform_id *) (buf + pos + pos2); + if ((len - pos - pos2) < p_id->platform_name_loop_length) + return NULL; + + pos2 += sizeof(struct dvb_platform_id) + p_id->platform_name_loop_length; + } + + pos += pos2; + } else if (p->linkage_type == 0x0c) { + struct dvb_linkage_data_0c *l_0c = (struct dvb_linkage_data_0c *) (buf + pos); + + if ((len - pos) < sizeof(struct dvb_linkage_data_0c)) + return NULL; + pos += sizeof(struct dvb_linkage_data_0c); + + if (l_0c->table_type == 0x02) { + if ((len - pos) < 2) + return NULL; + bswap16(buf+pos); + } + } + + return (struct dvb_linkage_descriptor*) d; +} + +/** + * Accessor for the data field of a dvb_linkage_descriptor. + * + * @param d dvb_linkage_descriptor pointer. + * @return Pointer to the data field. + */ +static inline uint8_t * + dvb_linkage_descriptor_data(struct dvb_linkage_descriptor *d) +{ + return (uint8_t *) d + sizeof(struct dvb_linkage_descriptor); +} + +/** + * Determine the length of the data field of a dvb_linkage_descriptor. + * + * @param d dvb_linkage_descriptor pointer. + * @return Length of the field in bytes. + */ +static inline int + dvb_linkage_descriptor_data_length(struct dvb_linkage_descriptor *d) +{ + return d->d.len - 7; +} + +/** + * Accessor for a dvb_linkage_data_08 pointer. + * + * @param d dvb_linkage_descriptor pointer. + * @return Pointer to the data field. + */ +static inline struct dvb_linkage_data_08 * + dvb_linkage_data_08(struct dvb_linkage_descriptor *d) +{ + if (d->linkage_type != 0x08) + return NULL; + return (struct dvb_linkage_data_08 *) dvb_linkage_descriptor_data(d); +} + +/** + * Accessor for the network_id field of a dvb_linkage_data_08. + * + * @param d dvb_linkage_descriptor pointer + * @param d08 dvb_linkage_data_08 pointer. + * @return network_id, or -1 if not present + */ +static inline int + dvb_linkage_data_08_network_id(struct dvb_linkage_descriptor *d, struct dvb_linkage_data_08 *d08) +{ + if (d->linkage_type != 0x08) + return -1; + + switch(d08->hand_over_type) { + case 1: + case 2: + case 3: + return *((uint16_t*) ((uint8_t*) d08 + sizeof(struct dvb_linkage_data_08))); + } + + return -1; +} + +/** + * Accessor for the initial_service_id field of a dvb_linkage_data_08. + * + * @param d dvb_linkage_descriptor pointer + * @param d08 dvb_linkage_data_08 pointer. + * @return initial_service_id, or -1 if not present + */ +static inline int + dvb_linkage_data_08_initial_service_id(struct dvb_linkage_descriptor *d, struct dvb_linkage_data_08 *d08) +{ + uint8_t *pos; + + if (d->linkage_type != 0x08) + return -1; + if (d08->origin_type != 0) + return -1; + + pos = ((uint8_t*) d08) + sizeof(struct dvb_linkage_data_08); + switch(d08->hand_over_type) { + case 1: + case 2: + case 3: + pos +=2; + break; + } + + return *((uint16_t*) pos); +} + +/** + * Accessor for the data field of a dvb_linkage_data_08. + * + * @param d dvb_linkage_descriptor pointer + * @param d08 dvb_linkage_data_08 pointer. + * @param length Pointer to int destination for data length. + * @return Pointer to the data field, or NULL if invalid + */ +static inline uint8_t * + dvb_linkage_data_08_data(struct dvb_linkage_descriptor *d, struct dvb_linkage_data_08 *d08, int *length) +{ + uint8_t *pos; + int used = 0; + + if (d->linkage_type != 0x08) { + *length = 0; + return NULL; + } + + pos = ((uint8_t*) d08) + sizeof(struct dvb_linkage_data_08); + switch(d08->hand_over_type) { + case 1: + case 2: + case 3: + pos += 2; + used += 2; + break; + } + if (d08->origin_type == 0) { + pos+=2; + used+=2; + } + + *length = dvb_linkage_descriptor_data_length(d) - (sizeof(struct dvb_linkage_data_08) + used); + return pos; +} + +/** + * Accessor for a dvb_linkage_data_0b pointer. + * + * @param d dvb_linkage_descriptor pointer. + * @return Pointer to the data field. + */ +static inline struct dvb_linkage_data_0b * + dvb_linkage_data_0b(struct dvb_linkage_descriptor *d) +{ + if (d->linkage_type != 0x0b) + return NULL; + return (struct dvb_linkage_data_0b *) dvb_linkage_descriptor_data(d); +} + +/** + * Iterator for the platform_id field of a dvb_linkage_data_0b. + * + * @param linkage dvb_linkage_data_0b pointer. + * @param pos Variable containing a pointer to the current dvb_platform_id. + */ +#define dvb_linkage_data_0b_platform_id_for_each(linkage, pos) \ + for ((pos) = dvb_platform_id_first(linkage); \ + (pos); \ + (pos) = dvb_platform_id_next(linkage, pos)) + +/** + * Iterator for the platform_name field of a dvb_platform_id. + * + * @param platid dvb_platform_id pointer. + * @param pos Variable containing a pointer to the current dvb_platform_name. + */ +#define dvb_platform_id_platform_name_for_each(platid, pos) \ + for ((pos) = dvb_platform_name_first(platid); \ + (pos); \ + (pos) = dvb_platform_name_next(platid, pos)) + +/** + * Accessor for the text field of a dvb_platform_name. + * + * @param p dvb_platform_name pointer. + * @return Pointer to the field. + */ +static inline uint8_t * + dvb_platform_name_text(struct dvb_platform_name *p) +{ + return (uint8_t *) p + sizeof(struct dvb_platform_name); +} + +/** + * Accessor for a dvb_linkage_data_0c pointer. + * + * @param d dvb_linkage_descriptor pointer. + * @return Pointer to the data field. + */ +static inline struct dvb_linkage_data_0c * + dvb_linkage_data_0c(struct dvb_linkage_descriptor *d) +{ + if (d->linkage_type != 0x0c) + return NULL; + return (struct dvb_linkage_data_0c *) dvb_linkage_descriptor_data(d); +} + +/** + * Accessor for the bouquet_id field of a dvb_linkage_data_0c if table_id == 0x02. + * + * @param l_0c dvb_linkage_data_0c pointer. + * @return The bouquet field, or -1 on error. + */ +static inline int + dvb_linkage_data_0c_bouquet_id(struct dvb_linkage_data_0c *l_0c) +{ + if (l_0c->table_type != 0x02) + return -1; + + return *((uint16_t *) ((uint8_t*) l_0c + 1)); +} + + + + + + + +/******************************** PRIVATE CODE ********************************/ +static inline struct dvb_platform_id * + dvb_platform_id_first(struct dvb_linkage_data_0b *d) +{ + if (d->platform_id_data_length == 0) + return NULL; + + return (struct dvb_platform_id *) ((uint8_t *) d + sizeof(struct dvb_linkage_data_0b)); +} + +static inline struct dvb_platform_id * + dvb_platform_id_next(struct dvb_linkage_data_0b *d, + struct dvb_platform_id *pos) +{ + uint8_t *end = (uint8_t *) d + d->platform_id_data_length; + uint8_t *next = (uint8_t *) pos + + sizeof(struct dvb_platform_id) + + pos->platform_name_loop_length; + + if (next >= end) + return NULL; + + return (struct dvb_platform_id *) next; +} + +static inline struct dvb_platform_name * + dvb_platform_name_first(struct dvb_platform_id *p) +{ + if (p->platform_name_loop_length == 0) + return NULL; + + return (struct dvb_platform_name *) ((uint8_t *) p + sizeof(struct dvb_platform_id)); +} + +static inline struct dvb_platform_name * + dvb_platform_name_next(struct dvb_platform_id *p, + struct dvb_platform_name *pos) +{ + uint8_t *end = (uint8_t *) p + p->platform_name_loop_length; + uint8_t *next = (uint8_t *) pos + + sizeof(struct dvb_platform_name) + + pos->platform_name_length; + + if (next >= end) + return NULL; + + return (struct dvb_platform_name *) next; +} + +#ifdef __cplusplus +} +#endif + +#endif diff --git a/lib/libucsi/dvb/local_time_offset_descriptor.h b/lib/libucsi/dvb/local_time_offset_descriptor.h new file mode 100644 index 0000000..d0eebb3 --- /dev/null +++ b/lib/libucsi/dvb/local_time_offset_descriptor.h @@ -0,0 +1,127 @@ +/* + * section and descriptor parser + * + * Copyright (C) 2005 Kenneth Aafloy (kenneth@linuxtv.org) + * Copyright (C) 2005 Andrew de Quincey (adq_dvb@lidskialf.net) + * + * This library is free software; you can redistribute it and/or + * modify it under the terms of the GNU Lesser General Public + * License as published by the Free Software Foundation; either + * version 2.1 of the License, or (at your option) any later version. + * + * This library is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * Lesser General Public License for more details. + * + * You should have received a copy of the GNU Lesser General Public + * License along with this library; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA + */ + +#ifndef _UCSI_DVB_LOCAL_TIME_OFFSET_DESCRIPTOR +#define _UCSI_DVB_LOCAL_TIME_OFFSET_DESCRIPTOR 1 + +#ifdef __cplusplus +extern "C" +{ +#endif + +#include <libucsi/descriptor.h> +#include <libucsi/endianops.h> +#include <libucsi/types.h> +#include <libucsi/dvb/types.h> + +/** + * dvb_local_time_offset_descriptor parameter. + */ +struct dvb_local_time_offset_descriptor { + struct descriptor d; + + /* struct dvb_local_time_offset offsets[] */ +} __ucsi_packed; + +/** + * Entry in the offsets field of dvb_local_time_offset_descriptor. + */ +struct dvb_local_time_offset { + iso639country_t country_code; + EBIT3(uint8_t country_region_id : 6; , + uint8_t reserved : 1; , + uint8_t local_time_offset_polarity : 1; ); + dvbhhmm_t local_time_offset; + dvbdate_t time_of_change; + dvbhhmm_t next_time_offset; +} __ucsi_packed; + +/** + * Process a dvb_local_time_offset_descriptor. + * + * @param d Generic descriptor pointer. + * @return dvb_local_time_offset_descriptor pointer, or NULL on error. + */ +static inline struct dvb_local_time_offset_descriptor* + dvb_local_time_offset_descriptor_codec(struct descriptor* d) +{ + uint32_t len = d->len; + uint32_t pos = 0; + + if (len % sizeof(struct dvb_local_time_offset)) + return NULL; + + while(pos < len) { + pos += sizeof(struct dvb_local_time_offset); + } + + return (struct dvb_local_time_offset_descriptor*) d; +} + +/** + * Iterator for the offsets field of a dvb_local_time_offset_descriptor. + * + * @param d dvb_local_time_offset_descriptor pointer. + * @param pos Variable containing a pointer to the current dvb_local_time_offset. + */ +#define dvb_local_time_offset_descriptor_offsets_for_each(d, pos) \ + for ((pos) = dvb_local_time_offset_descriptor_offsets_first(d); \ + (pos); \ + (pos) = dvb_local_time_offset_descriptor_offsets_next(d, pos)) + + + + + + + + + + +/******************************** PRIVATE CODE ********************************/ +static inline struct dvb_local_time_offset* + dvb_local_time_offset_descriptor_offsets_first(struct dvb_local_time_offset_descriptor *d) +{ + if (d->d.len == 0) + return NULL; + + return (struct dvb_local_time_offset *) + ((uint8_t*) d + sizeof(struct dvb_local_time_offset_descriptor)); +} + +static inline struct dvb_local_time_offset* + dvb_local_time_offset_descriptor_offsets_next(struct dvb_local_time_offset_descriptor *d, + struct dvb_local_time_offset *pos) +{ + uint8_t *end = (uint8_t*) d + 2 + d->d.len; + uint8_t *next = (uint8_t *) pos + sizeof(struct dvb_local_time_offset); + + if (next >= end) + return NULL; + + return (struct dvb_local_time_offset *) next; +} + +#ifdef __cplusplus +} +#endif + +#endif diff --git a/lib/libucsi/dvb/mhp_data_broadcast_id_descriptor.h b/lib/libucsi/dvb/mhp_data_broadcast_id_descriptor.h new file mode 100644 index 0000000..d79b48c --- /dev/null +++ b/lib/libucsi/dvb/mhp_data_broadcast_id_descriptor.h @@ -0,0 +1,110 @@ +/* + * section and descriptor parser + * + * Copyright (C) 2005 Kenneth Aafloy (kenneth@linuxtv.org) + * Copyright (C) 2005 Andrew de Quincey (adq_dvb@lidskialf.net) + * + * This library is free software; you can redistribute it and/or + * modify it under the terms of the GNU Lesser General Public + * License as published by the Free Software Foundation; either + * version 2.1 of the License, or (at your option) any later version. + * + * This library is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * Lesser General Public License for more details. + * + * You should have received a copy of the GNU Lesser General Public + * License along with this library; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA + */ + +#ifndef _UCSI_DVB_MHP_DATA_BROADCAST_ID_DESCRIPTOR +#define _UCSI_DVB_MHP_DATA_BROADCAST_ID_DESCRIPTOR 1 + +#ifdef __cplusplus +extern "C" +{ +#endif + +#ifndef _UCSI_DVB_DATA_BROADCAST_ID_DESCRIPTOR +#error Must include dvb/data_broadcast_id_descriptor.h first +#endif + +/** + * Broadcast IDs for MHP. + */ +enum { + DVB_BROADCAST_ID_MHP_OBJECT_CAROUSEL = 0x00f0, + DVB_BROADCAST_ID_MHP_MPE = 0x00f1, +}; + +/** + * dvb_mhp_data_broadcast_id_descriptor structure. + */ +struct dvb_mhp_data_broadcast_id_descriptor { + struct dvb_data_broadcast_id_descriptor d; + /* uint16_t application_type[] */ +} __ucsi_packed; + +/** + * Process a dvb_mhp_data_broadcast_id_descriptor. + * + * @param d Generic descriptor structure. + * @return dvb_mhp_data_broadcast_id_descriptor pointer, or NULL on error. + */ +static inline struct dvb_mhp_data_broadcast_id_descriptor* + dvb_mhp_data_broadcast_id_descriptor_codec(struct dvb_data_broadcast_id_descriptor* d) +{ + uint8_t * buf; + int len; + int pos = 0; + struct dvb_mhp_data_broadcast_id_descriptor *res = + (struct dvb_mhp_data_broadcast_id_descriptor *) d; + + if ((res->d.data_broadcast_id < 0xf0) || (res->d.data_broadcast_id > 0xfe)) + return NULL; + + buf = dvb_data_broadcast_id_descriptor_id_selector_byte(d); + len = dvb_data_broadcast_id_descriptor_id_selector_byte_length(d); + + if (len % 2) + return NULL; + + while(pos < len) { + bswap16(buf+pos); + pos+=2; + } + + return res; +} + +/** + * Accessor for the application_type field of a dvb_mhp_data_broadcast_id_descriptor. + * + * @param d dvb_mhp_data_broadcast_id_descriptor pointer. + * @return Pointer to the field. + */ +static inline uint16_t * + dvb_mhp_data_broadcast_id_descriptor_id_application_type(struct dvb_mhp_data_broadcast_id_descriptor *d) +{ + return (uint16_t *) dvb_data_broadcast_id_descriptor_id_selector_byte((struct dvb_data_broadcast_id_descriptor*) d); +} + +/** + * Determine the number of entries in the application_type field of a dvb_mhp_data_broadcast_id_descriptor. + * + * @param d dvb_data_broadcast_id_descriptor pointer. + * @return Length of the field in bytes. + */ +static inline int + dvb_mhp_data_broadcast_id_descriptor_id_application_type_count(struct dvb_mhp_data_broadcast_id_descriptor *d) +{ + return dvb_data_broadcast_id_descriptor_id_selector_byte_length((struct dvb_data_broadcast_id_descriptor*) d) >> 1; +} + +#ifdef __cplusplus +} +#endif + +#endif diff --git a/lib/libucsi/dvb/mosaic_descriptor.h b/lib/libucsi/dvb/mosaic_descriptor.h new file mode 100644 index 0000000..6da1e95 --- /dev/null +++ b/lib/libucsi/dvb/mosaic_descriptor.h @@ -0,0 +1,324 @@ +/* + * section and descriptor parser + * + * Copyright (C) 2005 Kenneth Aafloy (kenneth@linuxtv.org) + * Copyright (C) 2005 Andrew de Quincey (adq_dvb@lidskialf.net) + * + * This library is free software; you can redistribute it and/or + * modify it under the terms of the GNU Lesser General Public + * License as published by the Free Software Foundation; either + * version 2.1 of the License, or (at your option) any later version. + * + * This library is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * Lesser General Public License for more details. + * + * You should have received a copy of the GNU Lesser General Public + * License along with this library; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA + */ + +#ifndef _UCSI_DVB_MOSAIC_DESCRIPTOR +#define _UCSI_DVB_MOSAIC_DESCRIPTOR 1 + +#ifdef __cplusplus +extern "C" +{ +#endif + +#include <libucsi/descriptor.h> +#include <libucsi/endianops.h> + +/** + * dvb_mosaic_descriptor structure. + */ +struct dvb_mosaic_descriptor { + struct descriptor d; + + EBIT4(uint8_t mosaic_entry_point : 1; , + uint8_t number_of_horiz_elementary_cells: 3; , + uint8_t reserved : 1; , + uint8_t number_of_vert_elementary_cells : 3; ); + /* struct dvb_mosaic_info infos[] */ +} __ucsi_packed; + +/** + * An entry in the infos field of a dvb_mosaic_descriptor. + */ +struct dvb_mosaic_info { + EBIT3(uint16_t logical_cell_id : 6; , + uint16_t reserved : 7; , + uint16_t logical_cell_presentation_info : 3; ); + uint8_t elementary_cell_field_length; + /* struct dvb_mosaic_elementary_cell_field fields[] */ + /* struct dvb_mosaic_info_part2 part2 */ + /* struct dvb_mosaic_linkage linkage */ +} __ucsi_packed; + +/** + * An entry in the fields field of a dvb_mosaic_info. + */ +struct dvb_mosaic_elementary_cell_field { + EBIT2(uint8_t reserved : 2; , + uint8_t elementary_cell_id : 6; ); +} __ucsi_packed; + +/** + * Part2 of dvb_mosaic_info, following the variable length fields field. + */ +struct dvb_mosaic_info_part2 { + uint8_t cell_linkage_info; +} __ucsi_packed; + +struct dvb_mosaic_linkage_01 { + uint16_t bouquet_id; +} __ucsi_packed; + +struct dvb_mosaic_linkage_02 { + uint16_t original_network_id; + uint16_t transport_stream_id; + uint16_t service_id; +} __ucsi_packed; + +struct dvb_mosaic_linkage_03 { + uint16_t original_network_id; + uint16_t transport_stream_id; + uint16_t service_id; +} __ucsi_packed; + +struct dvb_mosaic_linkage_04 { + uint16_t original_network_id; + uint16_t transport_stream_id; + uint16_t service_id; + uint16_t event_id; +} __ucsi_packed; + +/** + * Structure describing the linkage field of a dvb_mosaic_info + */ +struct dvb_mosaic_linkage { + union { + struct dvb_mosaic_linkage_01 linkage_01; + struct dvb_mosaic_linkage_02 linkage_02; + struct dvb_mosaic_linkage_03 linkage_03; + struct dvb_mosaic_linkage_04 linkage_04; + } u; +} __ucsi_packed; + +/** + * Process a dvb_mosaic_descriptor. + * + * @param d Pointer to a generic descriptor structure. + */ +static inline struct dvb_mosaic_descriptor* + dvb_mosaic_descriptor_codec(struct descriptor* d) +{ + uint8_t* buf = (uint8_t*) d + 2; + uint32_t pos = 0; + uint32_t len = d->len; + struct dvb_mosaic_descriptor * p = + (struct dvb_mosaic_descriptor *) d; + + pos += (sizeof(struct dvb_mosaic_descriptor) - 2); + + if (pos > len) + return NULL; + + while(pos < len) { + struct dvb_mosaic_info *e = + (struct dvb_mosaic_info*) (buf+pos); + struct dvb_mosaic_info_part2 *e2; + struct dvb_mosaic_linkage *linkage; + + if ((pos + sizeof(struct dvb_mosaic_info)) > len) + return NULL; + + bswap16(buf + pos); + + pos += sizeof(struct dvb_mosaic_info) + + e->elementary_cell_field_length; + + if (pos > len) + return NULL; + + e2 = (struct dvb_mosaic_info_part2*) (buf+pos); + + pos += sizeof(struct dvb_mosaic_info_part2); + + if (pos > len) + return NULL; + + linkage = (struct dvb_mosaic_linkage*) (buf+pos); + + switch(e2->cell_linkage_info) { + case 0x01: + if ((pos + sizeof(struct dvb_mosaic_linkage_01)) > len) + return NULL; + bswap16(buf+pos); + pos += sizeof(struct dvb_mosaic_linkage_01); + break; + + case 0x02: + if ((pos + sizeof(struct dvb_mosaic_linkage_02)) > len) + return NULL; + bswap16(buf+pos); + bswap16(buf+pos+2); + bswap16(buf+pos+4); + pos += sizeof(struct dvb_mosaic_linkage_02); + break; + + case 0x03: + if ((pos + sizeof(struct dvb_mosaic_linkage_03)) > len) + return NULL; + bswap16(buf+pos); + bswap16(buf+pos+2); + bswap16(buf+pos+4); + pos += sizeof(struct dvb_mosaic_linkage_03); + break; + + case 0x04: + if ((pos + sizeof(struct dvb_mosaic_linkage_04)) > len) + return NULL; + bswap16(buf+pos); + bswap16(buf+pos+2); + bswap16(buf+pos+4); + bswap16(buf+pos+6); + pos += sizeof(struct dvb_mosaic_linkage_04); + break; + } + } + + return p; +} + +/** + * Iterator over the infos field of a dvb_mosaic_descriptor. + * + * @param d dvb_mosaic_descriptor pointer. + * @param pos Variable containing a pointer to the current dvb_mosaic_info. + */ +#define dvb_mosaic_descriptor_infos_for_each(d, pos) \ + for ((pos) = dvb_mosaic_descriptor_infos_first(d); \ + (pos); \ + (pos) = dvb_mosaic_descriptor_infos_next(d, pos)) + +/** + * Iterator over the fields field of a dvb_mosaic_info. + * + * @param info dvb_mosaic_info pointer. + * @param pos Variable containing a pointer to the current dvb_mosaic_elementary_cell_field. + */ +#define dvb_mosaic_info_fields_for_each(info, pos) \ + for ((pos) = dvb_mosaic_info_fields_first(info); \ + (pos); \ + (pos) = dvb_mosaic_info_fields_next(info, pos)) + +/** + * Accessor for the second part of the dvb_mosaic_info structure. + * + * @param entry dvb_mosaic_info pointer. + * @return dvb_mosaic_info_part2 pointer. + */ +static inline struct dvb_mosaic_info_part2* + dvb_mosaic_info_part2(struct dvb_mosaic_info* entry) +{ + return (struct dvb_mosaic_info_part2*) + ((uint8_t*) entry + sizeof(struct dvb_mosaic_info) + + entry->elementary_cell_field_length); +} + +/** + * Accessor for the linkage field a dvb_mosaic_info structure. + * + * @param entry dvb_mosaic_info_part2 pointer. + * @return dvb_mosaic_linkage pointer, or NULL on error. + */ +static inline struct dvb_mosaic_linkage* + dvb_mosaic_linkage(struct dvb_mosaic_info_part2* entry) +{ + if ((entry->cell_linkage_info != 0x01) && + (entry->cell_linkage_info != 0x02) && + (entry->cell_linkage_info != 0x03) && + (entry->cell_linkage_info != 0x04)) + return NULL; + + return (struct dvb_mosaic_linkage*) + ((uint8_t*) entry + sizeof(struct dvb_mosaic_info_part2)); +} + + + + + + + + + + +/******************************** PRIVATE CODE ********************************/ +static inline struct dvb_mosaic_info* + dvb_mosaic_descriptor_infos_first(struct dvb_mosaic_descriptor *d) +{ + if (d->d.len == 1) + return NULL; + + return (struct dvb_mosaic_info *) + ((uint8_t*) d + sizeof(struct dvb_mosaic_descriptor)); +} + +static inline struct dvb_mosaic_info* + dvb_mosaic_descriptor_infos_next(struct dvb_mosaic_descriptor *d, + struct dvb_mosaic_info *pos) +{ + struct dvb_mosaic_info_part2* part2 = dvb_mosaic_info_part2(pos); + uint8_t *end = (uint8_t*) d + 2 + d->d.len; + uint8_t *next = (uint8_t *) pos + sizeof(struct dvb_mosaic_info) + + pos->elementary_cell_field_length + + sizeof(struct dvb_mosaic_info_part2); + + if (part2->cell_linkage_info == 0x01) + next += sizeof(struct dvb_mosaic_linkage_01); + else if (part2->cell_linkage_info == 0x02) + next += sizeof(struct dvb_mosaic_linkage_02); + else if (part2->cell_linkage_info == 0x03) + next += sizeof(struct dvb_mosaic_linkage_03); + else if (part2->cell_linkage_info == 0x04) + next += sizeof(struct dvb_mosaic_linkage_04); + + if (next >= end) + return NULL; + + return (struct dvb_mosaic_info *) next; +} + +static inline struct dvb_mosaic_elementary_cell_field* + dvb_mosaic_info_fields_first(struct dvb_mosaic_info *d) +{ + if (d->elementary_cell_field_length == 0) + return NULL; + + return (struct dvb_mosaic_elementary_cell_field*) + ((uint8_t*) d + sizeof(struct dvb_mosaic_info)); +} + +static inline struct dvb_mosaic_elementary_cell_field* + dvb_mosaic_info_fields_next(struct dvb_mosaic_info *d, + struct dvb_mosaic_elementary_cell_field* pos) +{ + uint8_t *end = (uint8_t*) d + sizeof(struct dvb_mosaic_info) + + d->elementary_cell_field_length; + uint8_t *next = (uint8_t *) pos + + sizeof(struct dvb_mosaic_elementary_cell_field); + + if (next >= end) + return NULL; + + return (struct dvb_mosaic_elementary_cell_field *) next; +} + +#ifdef __cplusplus +} +#endif + +#endif diff --git a/lib/libucsi/dvb/multilingual_bouquet_name_descriptor.h b/lib/libucsi/dvb/multilingual_bouquet_name_descriptor.h new file mode 100644 index 0000000..0d8deb1 --- /dev/null +++ b/lib/libucsi/dvb/multilingual_bouquet_name_descriptor.h @@ -0,0 +1,145 @@ +/* + * section and descriptor parser + * + * Copyright (C) 2005 Kenneth Aafloy (kenneth@linuxtv.org) + * Copyright (C) 2005 Andrew de Quincey (adq_dvb@lidskialf.net) + * + * This library is free software; you can redistribute it and/or + * modify it under the terms of the GNU Lesser General Public + * License as published by the Free Software Foundation; either + * version 2.1 of the License, or (at your option) any later version. + * + * This library is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * Lesser General Public License for more details. + * + * You should have received a copy of the GNU Lesser General Public + * License along with this library; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA + */ + +#ifndef _UCSI_DVB_MULTILINGUAL_BOUQUET_NAME_DESCRIPTOR +#define _UCSI_DVB_MULTILINGUAL_BOUQUET_NAME_DESCRIPTOR 1 + +#ifdef __cplusplus +extern "C" +{ +#endif + +#include <libucsi/descriptor.h> +#include <libucsi/endianops.h> +#include <libucsi/types.h> + +/** + * dvb_multilingual_bouquet_name_descriptor structure. + */ +struct dvb_multilingual_bouquet_name_descriptor { + struct descriptor d; + + /* struct dvb_multilingual_bouquet_name names[]*/ +} __ucsi_packed; + +/** + * An entry in the names field of a dvb_multilingual_bouquet_name_descriptor. + */ +struct dvb_multilingual_bouquet_name { + iso639lang_t language_code; + uint8_t bouquet_name_length; + /* uint8_t name[] */ +} __ucsi_packed; + +/** + * Process a dvb_multilingual_bouquet_name_descriptor. + * + * @param d Generic descriptor pointer. + * @return dvb_multilingual_bouquet_name_descriptor pointer, or NULL on error. + */ +static inline struct dvb_multilingual_bouquet_name_descriptor* + dvb_multilingual_bouquet_name_descriptor_codec(struct descriptor* d) +{ + uint8_t* buf = (uint8_t*) d + 2; + uint32_t pos = 0; + uint32_t len = d->len; + + while(pos < len) { + struct dvb_multilingual_bouquet_name *e = + (struct dvb_multilingual_bouquet_name*) (buf+pos); + + pos += sizeof(struct dvb_multilingual_bouquet_name); + + if (pos > len) + return NULL; + + pos += e->bouquet_name_length; + + if (pos > len) + return NULL; + } + + return (struct dvb_multilingual_bouquet_name_descriptor*) d; +} + +/** + * Iterator for entries in the names field of a dvb_multilingual_bouquet_name_descriptor. + * + * @param d dvb_multilingual_bouquet_name_descriptor pointer. + * @param pos Variable containing a pointer to the current dvb_multilingual_bouquet_name. + */ +#define dvb_multilingual_bouquet_name_descriptor_names_for_each(d, pos) \ + for ((pos) = dvb_multilingual_bouquet_name_descriptor_names_first(d); \ + (pos); \ + (pos) = dvb_multilingual_bouquet_name_descriptor_names_next(d, pos)) + +/** + * Accessor for the name field of a dvb_multilingual_bouquet_name. + * + * @param e dvb_multilingual_bouquet_name pointer. + * @return Pointer to the field. + */ +static inline uint8_t * + dvb_multilingual_bouquet_name_name(struct dvb_multilingual_bouquet_name *e) +{ + return (uint8_t *) e + sizeof(struct dvb_multilingual_bouquet_name); +} + + + + + + + + + + +/******************************** PRIVATE CODE ********************************/ +static inline struct dvb_multilingual_bouquet_name* + dvb_multilingual_bouquet_name_descriptor_names_first(struct dvb_multilingual_bouquet_name_descriptor *d) +{ + if (d->d.len == 0) + return NULL; + + return (struct dvb_multilingual_bouquet_name *) + ((uint8_t*) d + sizeof(struct dvb_multilingual_bouquet_name_descriptor)); +} + +static inline struct dvb_multilingual_bouquet_name* + dvb_multilingual_bouquet_name_descriptor_names_next(struct dvb_multilingual_bouquet_name_descriptor *d, + struct dvb_multilingual_bouquet_name *pos) +{ + uint8_t *end = (uint8_t*) d + 2 + d->d.len; + uint8_t *next = (uint8_t *) pos + + sizeof(struct dvb_multilingual_bouquet_name) + + pos->bouquet_name_length; + + if (next >= end) + return NULL; + + return (struct dvb_multilingual_bouquet_name *) next; +} + +#ifdef __cplusplus +} +#endif + +#endif diff --git a/lib/libucsi/dvb/multilingual_component_descriptor.h b/lib/libucsi/dvb/multilingual_component_descriptor.h new file mode 100644 index 0000000..ab156af --- /dev/null +++ b/lib/libucsi/dvb/multilingual_component_descriptor.h @@ -0,0 +1,149 @@ +/* + * section and descriptor parser + * + * Copyright (C) 2005 Kenneth Aafloy (kenneth@linuxtv.org) + * Copyright (C) 2005 Andrew de Quincey (adq_dvb@lidskialf.net) + * + * This library is free software; you can redistribute it and/or + * modify it under the terms of the GNU Lesser General Public + * License as published by the Free Software Foundation; either + * version 2.1 of the License, or (at your option) any later version. + * + * This library is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * Lesser General Public License for more details. + * + * You should have received a copy of the GNU Lesser General Public + * License along with this library; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA + */ + +#ifndef _UCSI_DVB_MULTILINGUAL_COMPONENT_DESCRIPTOR +#define _UCSI_DVB_MULTILINGUAL_COMPONENT_DESCRIPTOR 1 + +#ifdef __cplusplus +extern "C" +{ +#endif + +#include <libucsi/descriptor.h> +#include <libucsi/endianops.h> +#include <libucsi/types.h> + +/** + * dvb_multilingual_component_descriptor structure. + */ +struct dvb_multilingual_component_descriptor { + struct descriptor d; + + uint8_t component_tag; + /* struct dvb_multilingual_component components[] */ +} __ucsi_packed; + +/** + * An entry in the components field of a dvb_multilingual_component_descriptor. + */ +struct dvb_multilingual_component { + iso639lang_t language_code; + uint8_t text_description_length; + /* uint8_t text_char[] */ +} __ucsi_packed; + +/** + * Process a dvb_multilingual_component_descriptor. + * + * @param d Generic descriptor pointer. + * @return dvb_multilingual_component_descriptor pointer, or NULL on error. + */ +static inline struct dvb_multilingual_component_descriptor* + dvb_multilingual_component_descriptor_codec(struct descriptor* d) +{ + uint8_t* buf = (uint8_t*) d + 2; + uint32_t pos = sizeof(struct dvb_multilingual_component_descriptor) - 2; + uint32_t len = d->len; + + if (pos > len) + return NULL; + + while(pos < len) { + struct dvb_multilingual_component *e = + (struct dvb_multilingual_component*) (buf+pos); + + pos += sizeof(struct dvb_multilingual_component); + + if (pos > len) + return NULL; + + pos += e->text_description_length; + + if (pos > len) + return NULL; + } + + return (struct dvb_multilingual_component_descriptor*) d; +} + +/** + * Iterator for entries in the components field of a dvb_multilingual_component_descriptor. + * + * @param d Generic descriptor pointer. + * @param pos Variable containing a pointer to the current dvb_multilingual_component. + */ +#define dvb_multilingual_component_descriptor_components_for_each(d, pos) \ + for ((pos) = dvb_multilingual_component_descriptor_components_first(d); \ + (pos); \ + (pos) = dvb_multilingual_component_descriptor_components_next(d, pos)) + +/** + * Accessor for the text_char field in a dvb_multilingual_component. + * + * @param e dvb_multilingual_component pointer. + * @return Pointer to the field. + */ +static inline uint8_t * + dvb_multilingual_component_text_char(struct dvb_multilingual_component *e) +{ + return (uint8_t *) e + sizeof(struct dvb_multilingual_component); +} + + + + + + + + + + +/******************************** PRIVATE CODE ********************************/ +static inline struct dvb_multilingual_component* + dvb_multilingual_component_descriptor_components_first(struct dvb_multilingual_component_descriptor *d) +{ + if (d->d.len == 1) + return NULL; + + return (struct dvb_multilingual_component *) + ((uint8_t*) d + sizeof(struct dvb_multilingual_component_descriptor)); +} + +static inline struct dvb_multilingual_component* + dvb_multilingual_component_descriptor_components_next(struct dvb_multilingual_component_descriptor *d, + struct dvb_multilingual_component *pos) +{ + uint8_t *end = (uint8_t*) d + 2 + d->d.len; + uint8_t *next = (uint8_t *) pos + + sizeof(struct dvb_multilingual_component) + + pos->text_description_length; + + if (next >= end) + return NULL; + + return (struct dvb_multilingual_component *) next; +} + +#ifdef __cplusplus +} +#endif + +#endif diff --git a/lib/libucsi/dvb/multilingual_network_name_descriptor.h b/lib/libucsi/dvb/multilingual_network_name_descriptor.h new file mode 100644 index 0000000..1a7b8c4 --- /dev/null +++ b/lib/libucsi/dvb/multilingual_network_name_descriptor.h @@ -0,0 +1,145 @@ +/* + * section and descriptor parser + * + * Copyright (C) 2005 Kenneth Aafloy (kenneth@linuxtv.org) + * Copyright (C) 2005 Andrew de Quincey (adq_dvb@lidskialf.net) + * + * This library is free software; you can redistribute it and/or + * modify it under the terms of the GNU Lesser General Public + * License as published by the Free Software Foundation; either + * version 2.1 of the License, or (at your option) any later version. + * + * This library is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * Lesser General Public License for more details. + * + * You should have received a copy of the GNU Lesser General Public + * License along with this library; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA + */ + +#ifndef _UCSI_DVB_MULTILINGUAL_NETWORK_NAME_DESCRIPTOR +#define _UCSI_DVB_MULTILINGUAL_NETWORK_NAME_DESCRIPTOR 1 + +#ifdef __cplusplus +extern "C" +{ +#endif + +#include <libucsi/descriptor.h> +#include <libucsi/endianops.h> +#include <libucsi/types.h> + +/** + * dvb_multilingual_network_name_descriptor structure. + */ +struct dvb_multilingual_network_name_descriptor { + struct descriptor d; + + /* struct dvb_multilingual_network_name names[] */ +} __ucsi_packed; + +/** + * An entry in the names field of a dvb_multilingual_network_name_descriptor. + */ +struct dvb_multilingual_network_name { + iso639lang_t language_code; + uint8_t network_name_length; + /* uint8_t name[] */ +} __ucsi_packed; + +/** + * Process a dvb_multilingual_network_name_descriptor. + * + * @param d Generic descriptor pointer. + * @return dvb_multilingual_network_name_descriptor pointer, or NULL on error. + */ +static inline struct dvb_multilingual_network_name_descriptor* + dvb_multilingual_network_name_descriptor_codec(struct descriptor* d) +{ + uint8_t* buf = (uint8_t*) d + 2; + uint32_t pos = 0; + uint32_t len = d->len; + + while(pos < len) { + struct dvb_multilingual_network_name *e = + (struct dvb_multilingual_network_name*) (buf + pos); + + pos += sizeof(struct dvb_multilingual_network_name); + + if (pos > len) + return NULL; + + pos += e->network_name_length; + + if (pos > len) + return NULL; + } + + return (struct dvb_multilingual_network_name_descriptor*) d; +} + +/** + * Iterator for entries in the names field of a dvb_multilingual_network_name_descriptor. + * + * @param d dvb_multilingual_network_name_descriptor pointer. + * @param pos Variable containing a pointer to the current dvb_multilingual_network_name. + */ +#define dvb_multilingual_network_name_descriptor_names_for_each(d, pos) \ + for ((pos) = dvb_multilingual_network_name_descriptor_names_first(d); \ + (pos); \ + (pos) = dvb_multilingual_network_name_descriptor_names_next(d, pos)) + +/** + * Accessor for the name field of a dvb_multilingual_network_name. + * + * @param e dvb_multilingual_network_name pointer. + * @return Pointer to the name field. + */ +static inline uint8_t * + dvb_multilingual_network_name_name(struct dvb_multilingual_network_name *e) +{ + return (uint8_t *) e + sizeof(struct dvb_multilingual_network_name); +} + + + + + + + + + + +/******************************** PRIVATE CODE ********************************/ +static inline struct dvb_multilingual_network_name* + dvb_multilingual_network_name_descriptor_names_first(struct dvb_multilingual_network_name_descriptor *d) +{ + if (d->d.len == 0) + return NULL; + + return (struct dvb_multilingual_network_name *) + ((uint8_t*) d + sizeof(struct dvb_multilingual_network_name_descriptor)); +} + +static inline struct dvb_multilingual_network_name* + dvb_multilingual_network_name_descriptor_names_next(struct dvb_multilingual_network_name_descriptor *d, + struct dvb_multilingual_network_name *pos) +{ + uint8_t *end = (uint8_t*) d + 2 + d->d.len; + uint8_t *next = (uint8_t *) pos + + sizeof(struct dvb_multilingual_network_name) + + pos->network_name_length; + + if (next >= end) + return NULL; + + return (struct dvb_multilingual_network_name *) next; +} + +#ifdef __cplusplus +} +#endif + +#endif diff --git a/lib/libucsi/dvb/multilingual_service_name_descriptor.h b/lib/libucsi/dvb/multilingual_service_name_descriptor.h new file mode 100644 index 0000000..31bb9c3 --- /dev/null +++ b/lib/libucsi/dvb/multilingual_service_name_descriptor.h @@ -0,0 +1,197 @@ +/* + * section and descriptor parser + * + * Copyright (C) 2005 Kenneth Aafloy (kenneth@linuxtv.org) + * Copyright (C) 2005 Andrew de Quincey (adq_dvb@lidskialf.net) + * + * This library is free software; you can redistribute it and/or + * modify it under the terms of the GNU Lesser General Public + * License as published by the Free Software Foundation; either + * version 2.1 of the License, or (at your option) any later version. + * + * This library is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * Lesser General Public License for more details. + * + * You should have received a copy of the GNU Lesser General Public + * License along with this library; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA + */ + +#ifndef _UCSI_DVB_MULTILINGUAL_SERVICE_NAME_DESCRIPTOR +#define _UCSI_DVB_MULTILINGUAL_SERVICE_NAME_DESCRIPTOR 1 + +#ifdef __cplusplus +extern "C" +{ +#endif + +#include <libucsi/descriptor.h> +#include <libucsi/endianops.h> +#include <libucsi/types.h> + +/** + * dvb_multilingual_service_name_descriptor structure. + */ +struct dvb_multilingual_service_name_descriptor { + struct descriptor d; + + /* struct dvb_multilingual_service_name names[] */ +} __ucsi_packed; + +/** + * An entry in the service_names field of a dvb_multilingual_service_name_descriptor. + */ +struct dvb_multilingual_service_name { + iso639lang_t language_code; + uint8_t service_provider_name_length; + /* uint8_t service_provider_name[] */ + /* struct dvb_multilingual_service_name_part2 part2 */ +} __ucsi_packed; + +/** + * Second part of a dvb_multilingual_service_name following the variable length + * service_provider_name. + */ +struct dvb_multilingual_service_name_part2 { + uint8_t service_name_length; + /* uint8_t service_name[] */ +} __ucsi_packed; + +/** + * Process a dvb_multilingual_service_name_descriptor. + * + * @param d Generic descriptor pointer. + * @return dvb_multilingual_service_name_descriptor pointer, or NULL on error. + */ +static inline struct dvb_multilingual_service_name_descriptor* + dvb_multilingual_service_name_descriptor_codec(struct descriptor* d) +{ + uint8_t* buf = (uint8_t*) d + 2; + uint32_t pos = 0; + uint32_t len = d->len; + + while(pos < len) { + struct dvb_multilingual_service_name *e = + (struct dvb_multilingual_service_name*) (buf+pos); + struct dvb_multilingual_service_name_part2 *e2; + + pos += sizeof(struct dvb_multilingual_service_name); + + if (pos > len) + return NULL; + + pos += e->service_provider_name_length; + + if (pos > len) + return NULL; + + e2 = (struct dvb_multilingual_service_name_part2*) (buf+pos); + + pos += sizeof(struct dvb_multilingual_service_name_part2); + + if (pos > len) + return NULL; + + pos += e2->service_name_length; + + if (pos > len) + return NULL; + } + + return (struct dvb_multilingual_service_name_descriptor*) d; +} + +/** + * Iterator for entries in the service_name field of a dvb_multilingual_service_name_descriptor. + * + * @param d dvb_multilingual_service_name_descriptor pointer, + * @param pos Variable containing pointer to the current dvb_multilingual_service_name. + */ +#define dvb_multilingual_service_name_descriptor_names_for_each(d, pos) \ + for ((pos) = dvb_multilingual_service_name_descriptor_names_first(d); \ + (pos); \ + (pos) = dvb_multilingual_service_name_descriptor_names_next(d, pos)) + +/** + * Accessor for the service_provider_name field of a dvb_multilingual_service_name. + * + * @param e dvb_multilingual_service_name pointer. + * @return Pointer to the field. + */ +static inline uint8_t * + dvb_multilingual_service_name_service_provider_name(struct dvb_multilingual_service_name *e) +{ + return (uint8_t *) e + sizeof(struct dvb_multilingual_service_name); +} + +/** + * Accessor for the dvb_multilingual_service_name_part2 - second part of a + * dvb_multilingual_service_name following the service_name field. + * + * @param e dvb_multilingual_service_name Pointer. + * @return dvb_multilingual_service_name_part2 pointer. + */ +static inline struct dvb_multilingual_service_name_part2 * + dvb_multilingual_service_name_part2(struct dvb_multilingual_service_name *e) +{ + return (struct dvb_multilingual_service_name_part2 *) + ((uint8_t *) e + sizeof(struct dvb_multilingual_service_name) + + e->service_provider_name_length); +} + +/** + * Accessor for the service_name field of a dvb_multilingual_service_name_part2. + * + * @param e dvb_multilingual_service_name_part2 pointer. + * @return Pointer to the field. + */ +static inline uint8_t * + dvb_multilingual_service_name_service_name(struct dvb_multilingual_service_name_part2 *e) +{ + return (uint8_t *) e + sizeof(struct dvb_multilingual_service_name_part2); +} + + + + + + + + + + +/******************************** PRIVATE CODE ********************************/ +static inline struct dvb_multilingual_service_name* + dvb_multilingual_service_name_descriptor_names_first(struct dvb_multilingual_service_name_descriptor *d) +{ + if (d->d.len == 0) + return NULL; + + return (struct dvb_multilingual_service_name *) + ((uint8_t*) d + sizeof(struct dvb_multilingual_service_name_descriptor)); +} + +static inline struct dvb_multilingual_service_name* + dvb_multilingual_service_name_descriptor_names_next(struct dvb_multilingual_service_name_descriptor *d, + struct dvb_multilingual_service_name *pos) +{ + struct dvb_multilingual_service_name_part2 * part2 = + dvb_multilingual_service_name_part2(pos); + uint8_t *end = (uint8_t*) d + 2 + d->d.len; + uint8_t *next = (uint8_t *) part2+ + sizeof(struct dvb_multilingual_service_name_part2) + + part2->service_name_length; + + if (next >= end) + return NULL; + + return (struct dvb_multilingual_service_name *) next; +} + +#ifdef __cplusplus +} +#endif + +#endif diff --git a/lib/libucsi/dvb/network_name_descriptor.h b/lib/libucsi/dvb/network_name_descriptor.h new file mode 100644 index 0000000..0754597 --- /dev/null +++ b/lib/libucsi/dvb/network_name_descriptor.h @@ -0,0 +1,82 @@ +/* + * section and descriptor parser + * + * Copyright (C) 2005 Kenneth Aafloy (kenneth@linuxtv.org) + * Copyright (C) 2005 Andrew de Quincey (adq_dvb@lidskialf.net) + * + * This library is free software; you can redistribute it and/or + * modify it under the terms of the GNU Lesser General Public + * License as published by the Free Software Foundation; either + * version 2.1 of the License, or (at your option) any later version. + * + * This library is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * Lesser General Public License for more details. + * + * You should have received a copy of the GNU Lesser General Public + * License along with this library; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA + */ + +#ifndef _UCSI_DVB_NETWORK_NAME_DESCRIPTOR +#define _UCSI_DVB_NETWORK_NAME_DESCRIPTOR 1 + +#ifdef __cplusplus +extern "C" +{ +#endif + +#include <libucsi/descriptor.h> +#include <libucsi/endianops.h> + +/** + * dvb_network_name_descriptor structure. + */ +struct dvb_network_name_descriptor { + struct descriptor d; + + /* char name[] */ +} __ucsi_packed; + +/** + * Process a dvb_network_name_descriptor. + * + * @param d Generic descriptor pointer. + * @return dvb_network_name_descriptor pointer, or NULL on error. + */ +static inline struct dvb_network_name_descriptor* + dvb_network_name_descriptor_codec(struct descriptor* d) +{ + return (struct dvb_network_name_descriptor*) d; +} + +/** + * Accessor for the name field in a dvb_network_name_descriptor. + * + * @param d dvb_network_name_descriptor pointer. + * @return Pointer to the field. + */ +static inline uint8_t * + dvb_network_name_descriptor_name(struct dvb_network_name_descriptor *d) +{ + return (uint8_t *) d + sizeof(struct dvb_network_name_descriptor); +} + +/** + * Calculate the length of the name field in a dvb_network_name_descriptor. + * + * @param d dvb_network_name_descriptor pointer. + * @return Length of the field in bytes. + */ +static inline int + dvb_network_name_descriptor_name_length(struct dvb_network_name_descriptor *d) +{ + return d->d.len; +} + +#ifdef __cplusplus +} +#endif + +#endif diff --git a/lib/libucsi/dvb/nit_section.c b/lib/libucsi/dvb/nit_section.c new file mode 100644 index 0000000..664a0cb --- /dev/null +++ b/lib/libucsi/dvb/nit_section.c @@ -0,0 +1,78 @@ +/* + * section and descriptor parser + * + * Copyright (C) 2005 Kenneth Aafloy (kenneth@linuxtv.org) + * Copyright (C) 2005 Andrew de Quincey (adq_dvb@lidskialf.net) + * + * This library is free software; you can redistribute it and/or + * modify it under the terms of the GNU Lesser General Public + * License as published by the Free Software Foundation; either + * version 2.1 of the License, or (at your option) any later version. + * + * This library is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * Lesser General Public License for more details. + * + * You should have received a copy of the GNU Lesser General Public + * License along with this library; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA + */ + +#include <libucsi/dvb/nit_section.h> + +struct dvb_nit_section *dvb_nit_section_codec(struct section_ext * ext) +{ + uint8_t * buf = (uint8_t *) ext; + struct dvb_nit_section * ret = (struct dvb_nit_section *) ext; + size_t pos = sizeof(struct section_ext); + size_t len = section_ext_length(ext); + + if (len < sizeof(struct dvb_nit_section)) + return NULL; + + bswap16(buf + pos); + pos += 2; + + if ((pos + ret->network_descriptors_length) > len) + return NULL; + + if (verify_descriptors(buf + pos, ret->network_descriptors_length)) + return NULL; + + pos += ret->network_descriptors_length; + + if ((pos + sizeof(struct dvb_nit_section_part2)) > len) + return NULL; + + bswap16(buf + pos); + pos += 2; + + while (pos < len) { + struct dvb_nit_transport *transport = + (struct dvb_nit_transport *)(buf + pos); + + if ((pos + sizeof(struct dvb_nit_transport)) > len) + return NULL; + + bswap16(buf + pos); + bswap16(buf + pos + 2); + bswap16(buf + pos + 4); + + pos += sizeof(struct dvb_nit_transport); + + if ((pos + transport->transport_descriptors_length) > len) + return NULL; + + if (verify_descriptors(buf + pos, + transport->transport_descriptors_length)) + return NULL; + + pos += transport->transport_descriptors_length; + } + + if (pos != len) + return NULL; + + return ret; +} diff --git a/lib/libucsi/dvb/nit_section.h b/lib/libucsi/dvb/nit_section.h new file mode 100644 index 0000000..77ab1a0 --- /dev/null +++ b/lib/libucsi/dvb/nit_section.h @@ -0,0 +1,207 @@ +/* + * section and descriptor parser + * + * Copyright (C) 2005 Kenneth Aafloy (kenneth@linuxtv.org) + * Copyright (C) 2005 Andrew de Quincey (adq_dvb@lidskialf.net) + * + * This library is free software; you can redistribute it and/or + * modify it under the terms of the GNU Lesser General Public + * License as published by the Free Software Foundation; either + * version 2.1 of the License, or (at your option) any later version. + * + * This library is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * Lesser General Public License for more details. + * + * You should have received a copy of the GNU Lesser General Public + * License along with this library; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA + */ + +#ifndef _UCSI_DVB_NIT_SECTION_H +#define _UCSI_DVB_NIT_SECTION_H 1 + +#ifdef __cplusplus +extern "C" +{ +#endif + +#include <libucsi/section.h> + +/** + * dvb_nit_section structure. + */ +struct dvb_nit_section { + struct section_ext head; + + EBIT2(uint16_t reserved_1 : 4; , + uint16_t network_descriptors_length :12; ); + /* struct descriptor descriptors[] */ + /* struct dvb_nit_section_part2 part2 */ +}; + +/** + * Second part of a dvb_nit_section, following the variable length descriptors field. + */ +struct dvb_nit_section_part2 { + EBIT2(uint16_t reserved_2 : 4; , + uint16_t transport_stream_loop_length :12; ); + /* struct dvb_nit_transport transports[] */ +} __ucsi_packed; + +/** + * An entry in the transports field of a dvb_nit_section_part2 + */ +struct dvb_nit_transport { + uint16_t transport_stream_id; + uint16_t original_network_id; + EBIT2(uint16_t reserved : 4; , + uint16_t transport_descriptors_length :12; ); + /* struct descriptor descriptors[] */ +} __ucsi_packed; + +/** + * Process a dvb_nit_section. + * + * @param section Generic section_ext pointer. + * @return dvb_nit_section pointer, or NULL on error. + */ +struct dvb_nit_section * dvb_nit_section_codec(struct section_ext *section); + +/** + * Accessor for the network_id field of a NIT. + * + * @param nit NIT pointer. + * @return The network_id. + */ +static inline uint16_t dvb_nit_section_network_id(struct dvb_nit_section *nit) +{ + return nit->head.table_id_ext; +} + +/** + * Iterator over the descriptors field in a dvb_nit_section. + * + * @param nit dvb_nit_section pointer. + * @param pos Variable containing a pointer to the current descriptor. + */ +#define dvb_nit_section_descriptors_for_each(nit, pos) \ + for ((pos) = dvb_nit_section_descriptors_first(nit); \ + (pos); \ + (pos) = dvb_nit_section_descriptors_next(nit, pos)) + +/** + * Accessor for a pointer to the dvb_nit_section_part2 structure. + * + * @param nit dvb_nit_section pointer. + * @return dvb_nit_section_part2 pointer. + */ +static inline struct dvb_nit_section_part2 *dvb_nit_section_part2(struct dvb_nit_section * nit) +{ + return (struct dvb_nit_section_part2 *) + ((uint8_t*) nit + sizeof(struct dvb_nit_section) + + nit->network_descriptors_length); +} + +/** + * Iterator over the transports field in a dvb_nit_section_part2. + * + * @param nit dvb_nit_section pointer. + * @param part2 dvb_nit_section_part2 pointer. + * @param pos Pointer to the current dvb_nit_transport. + */ +#define dvb_nit_section_transports_for_each(nit, part2, pos) \ + for ((pos) = dvb_nit_section_transports_first(part2); \ + (pos); \ + (pos) = dvb_nit_section_transports_next(part2, pos)) + +/** + * Iterator over the descriptors field in a dvb_nit_transport. + * + * @param transport dvb_nit_transport pointer. + * @param pos Pointer to the current descriptor. + */ +#define dvb_nit_transport_descriptors_for_each(transport, pos) \ + for ((pos) = dvb_nit_transport_descriptors_first(transport); \ + (pos); \ + (pos) = dvb_nit_transport_descriptors_next(transport, pos)) + + + + + + + + + + +/******************************** PRIVATE CODE ********************************/ +static inline struct descriptor * + dvb_nit_section_descriptors_first(struct dvb_nit_section * nit) +{ + if (nit->network_descriptors_length == 0) + return NULL; + + return (struct descriptor *) + ((uint8_t *) nit + sizeof(struct dvb_nit_section)); +} + +static inline struct descriptor * + dvb_nit_section_descriptors_next(struct dvb_nit_section * nit, + struct descriptor* pos) +{ + return next_descriptor((uint8_t*) nit + sizeof(struct dvb_nit_section), + nit->network_descriptors_length, + pos); +} + +static inline struct dvb_nit_transport * + dvb_nit_section_transports_first(struct dvb_nit_section_part2 *part2) +{ + if (part2->transport_stream_loop_length == 0) + return NULL; + + return (struct dvb_nit_transport *) + ((uint8_t *)part2 + sizeof(struct dvb_nit_section_part2)); +} + +static inline struct dvb_nit_transport * + dvb_nit_section_transports_next(struct dvb_nit_section_part2 *part2, + struct dvb_nit_transport *pos) +{ + uint8_t *end = (uint8_t*) part2 + sizeof(struct dvb_nit_section_part2) + + part2->transport_stream_loop_length; + uint8_t *next = (uint8_t*) pos + sizeof(struct dvb_nit_transport) + + pos->transport_descriptors_length; + + if (next >= end) + return NULL; + + return (struct dvb_nit_transport *) next; +} + +static inline struct descriptor * + dvb_nit_transport_descriptors_first(struct dvb_nit_transport *t) +{ + if (t->transport_descriptors_length == 0) + return NULL; + + return (struct descriptor *) + ((uint8_t*) t + sizeof(struct dvb_nit_transport)); +} + +static inline struct descriptor * + dvb_nit_transport_descriptors_next(struct dvb_nit_transport *t, + struct descriptor* pos) +{ + return next_descriptor((uint8_t*) t + sizeof(struct dvb_nit_transport), + t->transport_descriptors_length, + pos); +} + +#ifdef __cplusplus +} +#endif + +#endif diff --git a/lib/libucsi/dvb/nvod_reference_descriptor.h b/lib/libucsi/dvb/nvod_reference_descriptor.h new file mode 100644 index 0000000..6180514 --- /dev/null +++ b/lib/libucsi/dvb/nvod_reference_descriptor.h @@ -0,0 +1,125 @@ +/* + * section and descriptor parser + * + * Copyright (C) 2005 Kenneth Aafloy (kenneth@linuxtv.org) + * Copyright (C) 2005 Andrew de Quincey (adq_dvb@lidskialf.net) + * + * This library is free software; you can redistribute it and/or + * modify it under the terms of the GNU Lesser General Public + * License as published by the Free Software Foundation; either + * version 2.1 of the License, or (at your option) any later version. + * + * This library is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * Lesser General Public License for more details. + * + * You should have received a copy of the GNU Lesser General Public + * License along with this library; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA + */ + +#ifndef _UCSI_DVB_NVOD_REFERENCE_DESCRIPTOR +#define _UCSI_DVB_NVOD_REFERENCE_DESCRIPTOR 1 + +#ifdef __cplusplus +extern "C" +{ +#endif + +#include <libucsi/descriptor.h> +#include <libucsi/endianops.h> + +/** + * dvb_nvod_reference_descriptor structure. + */ +struct dvb_nvod_reference_descriptor { + struct descriptor d; + + /* struct dvb_nvod_reference references[] */ +} __ucsi_packed; + +/** + * An entry in the references field of a dvb_nvod_reference_descriptor. + */ +struct dvb_nvod_reference { + uint16_t transport_stream_id; + uint16_t original_network_id; + uint16_t service_id; +} __ucsi_packed; + +/** + * Process a dvb_nvod_reference_descriptor. + * + * @param d Pointer to a generic descriptor structure pointer. + * @return dvb_nvod_reference_descriptor pointer, or NULL on error. + */ +static inline struct dvb_nvod_reference_descriptor* + dvb_nvod_reference_descriptor_codec(struct descriptor* d) +{ + uint32_t pos = 0; + uint8_t* buf = (uint8_t*) d + 2; + uint32_t len = d->len; + + if (len % sizeof(struct dvb_nvod_reference)) + return NULL; + + while(pos < len) { + bswap16(buf+pos); + bswap16(buf+pos+2); + bswap16(buf+pos+4); + pos += sizeof(struct dvb_nvod_reference); + } + + return (struct dvb_nvod_reference_descriptor*) d; +} + +/** + * Iterator over the references field in a dvb_nvod_reference_descriptor. + * + * @param d dvb_nvod_reference_descriptor pointer. + * @param pos Variable containing a pointer to the current dvb_nvod_reference. + */ +#define dvb_nvod_reference_descriptor_references_for_each(d, pos) \ + for ((pos) = dvb_nvod_reference_descriptor_references_first(d); \ + (pos); \ + (pos) = dvb_nvod_reference_descriptor_references_next(d, pos)) + + + + + + + + + + +/******************************** PRIVATE CODE ********************************/ +static inline struct dvb_nvod_reference* + dvb_nvod_reference_descriptor_references_first(struct dvb_nvod_reference_descriptor *d) +{ + if (d->d.len == 0) + return NULL; + + return (struct dvb_nvod_reference *) + ((uint8_t*) d + sizeof(struct dvb_nvod_reference_descriptor)); +} + +static inline struct dvb_nvod_reference* + dvb_nvod_reference_descriptor_references_next(struct dvb_nvod_reference_descriptor *d, + struct dvb_nvod_reference *pos) +{ + uint8_t *end = (uint8_t*) d + 2 + d->d.len; + uint8_t *next = (uint8_t *) pos + sizeof(struct dvb_nvod_reference); + + if (next >= end) + return NULL; + + return (struct dvb_nvod_reference *) next; +} + +#ifdef __cplusplus +} +#endif + +#endif diff --git a/lib/libucsi/dvb/parental_rating_descriptor.h b/lib/libucsi/dvb/parental_rating_descriptor.h new file mode 100644 index 0000000..72ecd0a --- /dev/null +++ b/lib/libucsi/dvb/parental_rating_descriptor.h @@ -0,0 +1,135 @@ +/* + * section and descriptor parser + * + * Copyright (C) 2005 Kenneth Aafloy (kenneth@linuxtv.org) + * Copyright (C) 2005 Andrew de Quincey (adq_dvb@lidskialf.net) + * + * This library is free software; you can redistribute it and/or + * modify it under the terms of the GNU Lesser General Public + * License as published by the Free Software Foundation; either + * version 2.1 of the License, or (at your option) any later version. + * + * This library is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * Lesser General Public License for more details. + * + * You should have received a copy of the GNU Lesser General Public + * License along with this library; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA + */ + +#ifndef _UCSI_DVB_PARENTAL_RATING_DESCRIPTOR +#define _UCSI_DVB_PARENTAL_RATING_DESCRIPTOR 1 + +#ifdef __cplusplus +extern "C" +{ +#endif + +#include <libucsi/descriptor.h> +#include <libucsi/endianops.h> +#include <libucsi/types.h> + +/** + * Defined values for the rating field. + */ +enum { + DVB_PARENTAL_RATING_MIN_3YEARS = 0x01, + DVB_PARENTAL_RATING_MIN_4YEARS = 0x02, + DVB_PARENTAL_RATING_MIN_5YEARS = 0x03, + DVB_PARENTAL_RATING_MIN_6YEARS = 0x04, + DVB_PARENTAL_RATING_MIN_7YEARS = 0x05, + DVB_PARENTAL_RATING_MIN_8YEARS = 0x06, + DVB_PARENTAL_RATING_MIN_9YEARS = 0x07, + DVB_PARENTAL_RATING_MIN_10YEARS = 0x08, + DVB_PARENTAL_RATING_MIN_11YEARS = 0x09, + DVB_PARENTAL_RATING_MIN_12YEARS = 0x0a, + DVB_PARENTAL_RATING_MIN_13YEARS = 0x0b, + DVB_PARENTAL_RATING_MIN_14YEARS = 0x0c, + DVB_PARENTAL_RATING_MIN_15YEARS = 0x0d, + DVB_PARENTAL_RATING_MIN_16YEARS = 0x0e, + DVB_PARENTAL_RATING_MIN_17YEARS = 0x0f, +}; + +/** + * dvb_parental_rating_descriptor structure. + */ +struct dvb_parental_rating_descriptor { + struct descriptor d; + + /* struct dvb_parental_rating ratings[] */ +} __ucsi_packed; + +/** + * An entry in the ratings field of a dvb_parental_rating_descriptor. + */ +struct dvb_parental_rating { + iso639country_t country_code; + uint8_t rating; +} __ucsi_packed; + +/** + * Process a dvb_parental_rating_descriptor. + * + * @param d Generic descriptor structure pointer. + * @return dvb_parental_rating_descriptor pointer, or NULL on error. + */ +static inline struct dvb_parental_rating_descriptor* + dvb_parental_rating_descriptor_codec(struct descriptor* d) +{ + if (d->len % sizeof(struct dvb_parental_rating)) + return NULL; + + return (struct dvb_parental_rating_descriptor*) d; +} + +/** + * Iterator for entries in the ratings field of a dvb_parental_rating_descriptor. + * + * @param d dvb_parental_rating_descriptor pointer. + * @param pos Variable containing a pointer to the current dvb_parental_rating. + */ +#define dvb_parental_rating_descriptor_ratings_for_each(d, pos) \ + for ((pos) = dvb_parental_rating_descriptor_ratings_first(d); \ + (pos); \ + (pos) = dvb_parental_rating_descriptor_ratings_next(d, pos)) + + + + + + + + + + +/******************************** PRIVATE CODE ********************************/ +static inline struct dvb_parental_rating* + dvb_parental_rating_descriptor_ratings_first(struct dvb_parental_rating_descriptor *d) +{ + if (d->d.len == 0) + return NULL; + + return (struct dvb_parental_rating *) + ((uint8_t*) d + sizeof(struct dvb_parental_rating_descriptor)); +} + +static inline struct dvb_parental_rating* + dvb_parental_rating_descriptor_ratings_next(struct dvb_parental_rating_descriptor *d, + struct dvb_parental_rating *pos) +{ + uint8_t *end = (uint8_t*) d + 2 + d->d.len; + uint8_t *next = (uint8_t *) pos + sizeof(struct dvb_parental_rating); + + if (next >= end) + return NULL; + + return (struct dvb_parental_rating *) next; +} + +#ifdef __cplusplus +} +#endif + +#endif diff --git a/lib/libucsi/dvb/partial_transport_stream_descriptor.h b/lib/libucsi/dvb/partial_transport_stream_descriptor.h new file mode 100644 index 0000000..6e3aa96 --- /dev/null +++ b/lib/libucsi/dvb/partial_transport_stream_descriptor.h @@ -0,0 +1,68 @@ +/* + * section and descriptor parser + * + * Copyright (C) 2005 Kenneth Aafloy (kenneth@linuxtv.org) + * Copyright (C) 2005 Andrew de Quincey (adq_dvb@lidskialf.net) + * + * This library is free software; you can redistribute it and/or + * modify it under the terms of the GNU Lesser General Public + * License as published by the Free Software Foundation; either + * version 2.1 of the License, or (at your option) any later version. + * + * This library is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * Lesser General Public License for more details. + * + * You should have received a copy of the GNU Lesser General Public + * License along with this library; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA + */ + +#ifndef _UCSI_DVB_PARTIAL_TRANSPORT_STREAM_DESCRIPTOR +#define _UCSI_DVB_PARTIAL_TRANSPORT_STREAM_DESCRIPTOR 1 + +#ifdef __cplusplus +extern "C" +{ +#endif + +#include <libucsi/descriptor.h> +#include <libucsi/endianops.h> + +/** + * dvb_partial_transport_stream_descriptor structure. + */ +struct dvb_partial_transport_stream_descriptor { + struct descriptor d; + + EBIT6(uint64_t reserved : 2; , + uint64_t peak_rate :22; , + uint64_t reserved_2 : 2; , + uint64_t minimum_overall_smoothing_rate :22; , + uint64_t reserved_3 : 2; , + uint64_t maximum_overall_smoothing_rate :14; ); +} __ucsi_packed; + +/** + * Process a dvb_partial_transport_stream_descriptor. + * + * @param d Generic descriptor pointer. + * @return dvb_partial_transport_stream_descriptor pointer, or NULL on error. + */ +static inline struct dvb_partial_transport_stream_descriptor* + dvb_partial_transport_stream_descriptor_codec(struct descriptor* d) +{ + if (d->len != (sizeof(struct dvb_partial_transport_stream_descriptor) - 2)) + return NULL; + + bswap64((uint8_t*) d + 2); + + return (struct dvb_partial_transport_stream_descriptor*) d; +} + +#ifdef __cplusplus +} +#endif + +#endif diff --git a/lib/libucsi/dvb/pdc_descriptor.h b/lib/libucsi/dvb/pdc_descriptor.h new file mode 100644 index 0000000..68190be --- /dev/null +++ b/lib/libucsi/dvb/pdc_descriptor.h @@ -0,0 +1,64 @@ +/* + * section and descriptor parser + * + * Copyright (C) 2005 Kenneth Aafloy (kenneth@linuxtv.org) + * Copyright (C) 2005 Andrew de Quincey (adq_dvb@lidskialf.net) + * + * This library is free software; you can redistribute it and/or + * modify it under the terms of the GNU Lesser General Public + * License as published by the Free Software Foundation; either + * version 2.1 of the License, or (at your option) any later version. + * + * This library is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * Lesser General Public License for more details. + * + * You should have received a copy of the GNU Lesser General Public + * License along with this library; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA + */ + +#ifndef _UCSI_DVB_PDC_DESCRIPTOR +#define _UCSI_DVB_PDC_DESCRIPTOR 1 + +#ifdef __cplusplus +extern "C" +{ +#endif + +#include <libucsi/descriptor.h> +#include <libucsi/endianops.h> + +/** + * dvb_pdc_descriptor structure. + */ +struct dvb_pdc_descriptor { + struct descriptor d; + + EBIT2(uint32_t reserved : 4; , + uint32_t programme_id_label :20; ); +} __ucsi_packed; + +/** + * Process a dvb_pdc_descriptor. + * + * @param d Pointer to a generic descriptor structure. + * @return dvb_pdc_descriptor pointer, or NULL on error. + */ +static inline struct dvb_pdc_descriptor* + dvb_pdc_descriptor_codec(struct descriptor* d) +{ + if (d->len != (sizeof(struct dvb_pdc_descriptor) - 2)) + return NULL; + + bswap24((uint8_t*) d + 2); + + return (struct dvb_pdc_descriptor*) d; +} + +#ifdef __cplusplus +} +#endif + +#endif diff --git a/lib/libucsi/dvb/private_data_specifier_descriptor.h b/lib/libucsi/dvb/private_data_specifier_descriptor.h new file mode 100644 index 0000000..f4cc03c --- /dev/null +++ b/lib/libucsi/dvb/private_data_specifier_descriptor.h @@ -0,0 +1,63 @@ +/* + * section and descriptor parser + * + * Copyright (C) 2005 Kenneth Aafloy (kenneth@linuxtv.org) + * Copyright (C) 2005 Andrew de Quincey (adq_dvb@lidskialf.net) + * + * This library is free software; you can redistribute it and/or + * modify it under the terms of the GNU Lesser General Public + * License as published by the Free Software Foundation; either + * version 2.1 of the License, or (at your option) any later version. + * + * This library is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * Lesser General Public License for more details. + * + * You should have received a copy of the GNU Lesser General Public + * License along with this library; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA + */ + +#ifndef _UCSI_DVB_PRIVATE_DATA_SPECIFIER_DESCRIPTOR +#define _UCSI_DVB_PRIVATE_DATA_SPECIFIER_DESCRIPTOR 1 + +#ifdef __cplusplus +extern "C" +{ +#endif + +#include <libucsi/descriptor.h> +#include <libucsi/endianops.h> + +/** + * dvb_private_data_specifier_descriptor structure. + */ +struct dvb_private_data_specifier_descriptor { + struct descriptor d; + + uint32_t private_data_specifier; +} __ucsi_packed; + +/** + * Process a dvb_private_data_specifier_descriptor. + * + * @param d Generic descriptor structure. + * @return dvb_private_data_specifier_descriptor pointer, or NULL on error. + */ +static inline struct dvb_private_data_specifier_descriptor* + dvb_private_data_specifier_descriptor_codec(struct descriptor* d) +{ + if (d->len != (sizeof(struct dvb_private_data_specifier_descriptor) - 2)) + return NULL; + + bswap32((uint8_t*) d + 2); + + return (struct dvb_private_data_specifier_descriptor*) d; +} + +#ifdef __cplusplus +} +#endif + +#endif diff --git a/lib/libucsi/dvb/related_content_descriptor.h b/lib/libucsi/dvb/related_content_descriptor.h new file mode 100644 index 0000000..fd6a358 --- /dev/null +++ b/lib/libucsi/dvb/related_content_descriptor.h @@ -0,0 +1,56 @@ +/* + * section and descriptor parser + * + * Copyright (C) 2005 Kenneth Aafloy (kenneth@linuxtv.org) + * Copyright (C) 2005 Andrew de Quincey (adq_dvb@lidskialf.net) + * + * This library is free software; you can redistribute it and/or + * modify it under the terms of the GNU Lesser General Public + * License as published by the Free Software Foundation; either + * version 2.1 of the License, or (at your option) any later version. + * + * This library is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * Lesser General Public License for more details. + * + * You should have received a copy of the GNU Lesser General Public + * License along with this library; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA + */ + +#ifndef _UCSI_DVB_RELATED_CONTENT_DESCRIPTOR +#define _UCSI_DVB_RELATED_CONTENT_DESCRIPTOR 1 + +#ifdef __cplusplus +extern "C" +{ +#endif + +#include <libucsi/descriptor.h> +#include <libucsi/endianops.h> + +/** + * dvb_related_content_descriptor structure. + */ +struct dvb_related_content_descriptor { + struct descriptor d; +} __ucsi_packed; + +/** + * Process a dvb_related_content_descriptor. + * + * @param d Generic descriptor pointer. + * @return dvb_related_content_descriptor pointer, or NULL on error. + */ +static inline struct dvb_related_content_descriptor* + dvb_related_content_descriptor_codec(struct descriptor* d) +{ + return (struct dvb_related_content_descriptor*) d; +} + +#ifdef __cplusplus +} +#endif + +#endif diff --git a/lib/libucsi/dvb/rnt_rar_over_dvb_stream_descriptor.h b/lib/libucsi/dvb/rnt_rar_over_dvb_stream_descriptor.h new file mode 100644 index 0000000..ba42d12 --- /dev/null +++ b/lib/libucsi/dvb/rnt_rar_over_dvb_stream_descriptor.h @@ -0,0 +1,110 @@ +/* + * section and descriptor parser + * + * Copyright (C) 2005 Kenneth Aafloy (kenneth@linuxtv.org) + * Copyright (C) 2005 Andrew de Quincey (adq_dvb@lidskialf.net) + * + * This library is free software; you can redistribute it and/or + * modify it under the terms of the GNU Lesser General Public + * License as published by the Free Software Foundation; either + * version 2.1 of the License, or (at your option) any later version. + * + * This library is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * Lesser General Public License for more details. + * + * You should have received a copy of the GNU Lesser General Public + * License along with this library; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA + */ + +#ifndef _UCSI_DVB_RNT_RAR_OVER_DVB_STREAM_DESCRIPTOR +#define _UCSI_DVB_RNT_RAR_OVER_DVB_STREAM_DESCRIPTOR 1 + +#ifdef __cplusplus +extern "C" +{ +#endif + +#include <libucsi/descriptor.h> +#include <libucsi/endianops.h> + +/** + * dvb_rnt_rar_over_dvb_stream_descriptor structure. + */ +struct dvb_rnt_rar_over_dvb_stream_descriptor { + struct descriptor d; + + dvbdate_t first_valid_date; + dvbdate_t last_valid_date; + EBIT3(uint8_t weighting : 6; , + uint8_t complete_flag : 1; , + uint8_t scheduled_flag : 1; ); + uint16_t transport_stream_id; + uint16_t original_network_id; + uint16_t service_id; + uint8_t component_tag; + /* struct dvb_rnt_rar_over_dvb_stream_descriptor_scheduled_info scheduled_info */ +} __ucsi_packed; + +/** + * The scheduled_info field of a dvb_rnt_rar_over_dvb_stream_descriptor (only appears + * if scheduled_flag = 1). + */ +struct dvb_rnt_rar_over_dvb_stream_descriptor_scheduled_info { + dvbdate_t download_start_time; + uint8_t download_period_duration; + uint8_t download_cycle_time; +} __ucsi_packed; + +/** + * Process a dvb_rnt_rar_over_dvb_stream_descriptor. + * + * @param d Generic descriptor pointer. + * @return dvb_rnt_rar_over_dvb_stream_descriptor pointer, or NULL on error. + */ +static inline struct dvb_rnt_rar_over_dvb_stream_descriptor* + dvb_rnt_rar_over_dvb_stream_descriptor_codec(struct descriptor* d) +{ + uint8_t *buf = (uint8_t*) d; + uint32_t len = d->len + 2; + struct dvb_rnt_rar_over_dvb_stream_descriptor *ret = + (struct dvb_rnt_rar_over_dvb_stream_descriptor *) buf; + + if (len < sizeof(struct dvb_rnt_rar_over_dvb_stream_descriptor)) + return NULL; + + bswap16(buf + 13); + bswap16(buf + 15); + bswap16(buf + 17); + + if (ret->scheduled_flag == 1) { + if (len < (sizeof(struct dvb_rnt_rar_over_dvb_stream_descriptor)+ + sizeof(struct dvb_rnt_rar_over_dvb_stream_descriptor_scheduled_info))) + return NULL; + } + + return ret; +} + +/** + * Accessor for the scheduled_info field of a dvb_rnt_rar_over_dvb_stream_descriptor. + * + * @param d dvb_rnt_rar_over_dvb_stream_descriptor pointer. + * @return Pointer, or NULL on error. + */ +static inline struct dvb_rnt_rar_over_dvb_stream_descriptor_scheduled_info* + dvb_rnt_rar_over_dvb_stream_descriptor_scheduled_info(struct dvb_rnt_rar_over_dvb_stream_descriptor *d) +{ + if (d->scheduled_flag != 1) + return NULL; + return (struct dvb_rnt_rar_over_dvb_stream_descriptor_scheduled_info*) + ((uint8_t*) d + sizeof(struct dvb_rnt_rar_over_dvb_stream_descriptor)); +} + +#ifdef __cplusplus +} +#endif + +#endif diff --git a/lib/libucsi/dvb/rnt_rar_over_ip_descriptor.h b/lib/libucsi/dvb/rnt_rar_over_ip_descriptor.h new file mode 100644 index 0000000..b1f2da4 --- /dev/null +++ b/lib/libucsi/dvb/rnt_rar_over_ip_descriptor.h @@ -0,0 +1,87 @@ +/* + * section and descriptor parser + * + * Copyright (C) 2005 Kenneth Aafloy (kenneth@linuxtv.org) + * Copyright (C) 2005 Andrew de Quincey (adq_dvb@lidskialf.net) + * + * This library is free software; you can redistribute it and/or + * modify it under the terms of the GNU Lesser General Public + * License as published by the Free Software Foundation; either + * version 2.1 of the License, or (at your option) any later version. + * + * This library is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * Lesser General Public License for more details. + * + * You should have received a copy of the GNU Lesser General Public + * License along with this library; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA + */ + +#ifndef _UCSI_DVB_RNT_RAR_OVER_IP_DESCRIPTOR +#define _UCSI_DVB_RNT_RAR_OVER_IP_DESCRIPTOR 1 + +#ifdef __cplusplus +extern "C" +{ +#endif + +#include <libucsi/descriptor.h> +#include <libucsi/endianops.h> + +/** + * dvb_rnt_rar_over_ip_descriptor structure. + */ +struct dvb_rnt_rar_over_ip_descriptor { + struct descriptor d; + + dvbdate_t first_valid_date; + dvbdate_t last_valid_date; + EBIT3(uint8_t weighting : 6; , + uint8_t complete_flag : 1; , + uint8_t reserved : 1; ); + uint8_t url_length; + /* uint8_t url[] */ +} __ucsi_packed; + +/** + * Process a dvb_rnt_rar_over_ip_descriptor. + * + * @param d Generic descriptor pointer. + * @return dvb_rnt_rar_over_ip_descriptor pointer, or NULL on error. + */ +static inline struct dvb_rnt_rar_over_ip_descriptor* + dvb_rnt_rar_over_ip_descriptor_codec(struct descriptor* d) +{ + uint8_t *buf = (uint8_t*) d; + uint32_t len = d->len + 2; + struct dvb_rnt_rar_over_ip_descriptor *ret = + (struct dvb_rnt_rar_over_ip_descriptor *) buf; + + if (len < sizeof(struct dvb_rnt_rar_over_ip_descriptor)) + return NULL; + if (len < (sizeof(struct dvb_rnt_rar_over_ip_descriptor) + buf[13])) + return NULL; + + return ret; +} + +/** + * Accessor for the url field of a dvb_rnt_rar_over_ip_descriptor. + * + * @param d dvb_rnt_rar_over_ip_descriptor pointer. + * @return Pointer. + */ +static inline uint8_t* + dvb_rnt_rar_over_ip_descriptor_url(struct dvb_rnt_rar_over_ip_descriptor *d) +{ + return (uint8_t*) + ((uint8_t*) d + sizeof(struct dvb_rnt_rar_over_ip_descriptor)); +} + +#ifdef __cplusplus +} +#endif + +#endif diff --git a/lib/libucsi/dvb/rnt_rnt_scan_descriptor.h b/lib/libucsi/dvb/rnt_rnt_scan_descriptor.h new file mode 100644 index 0000000..cb74f75 --- /dev/null +++ b/lib/libucsi/dvb/rnt_rnt_scan_descriptor.h @@ -0,0 +1,125 @@ +/* + * section and descriptor parser + * + * Copyright (C) 2005 Kenneth Aafloy (kenneth@linuxtv.org) + * Copyright (C) 2005 Andrew de Quincey (adq_dvb@lidskialf.net) + * + * This library is free software; you can redistribute it and/or + * modify it under the terms of the GNU Lesser General Public + * License as published by the Free Software Foundation; either + * version 2.1 of the License, or (at your option) any later version. + * + * This library is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * Lesser General Public License for more details. + * + * You should have received a copy of the GNU Lesser General Public + * License along with this library; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA + */ + +#ifndef _UCSI_DVB_RNT_RNT_SCAN_DESCRIPTOR +#define _UCSI_DVB_RNT_RNT_SCAN_DESCRIPTOR 1 + +#ifdef __cplusplus +extern "C" +{ +#endif + +#include <libucsi/descriptor.h> +#include <libucsi/endianops.h> +#include <libucsi/types.h> + +/** + * dvb_rnt_rnt_scan_descriptor structure. + */ +struct dvb_rnt_rnt_scan_descriptor { + struct descriptor d; + + /* struct dvb_rnt_rnt_scan_entry entries[] */ +} __ucsi_packed; + +/** + * An entry in the entries field of a dvb_rnt_rnt_scan_descriptor. + */ +struct dvb_rnt_rnt_scan_entry { + uint16_t transport_stream_id; + uint16_t original_network_id; + uint8_t scan_weighting; +} __ucsi_packed; + +/** + * Process a dvb_rnt_rnt_scan_descriptor. + * + * @param d Generic descriptor. + * @return dvb_rnt_rnt_scan_descriptor pointer, or NULL on error. + */ +static inline struct dvb_rnt_rnt_scan_descriptor* + dvb_rnt_rnt_scan_descriptor_codec(struct descriptor* d) +{ + uint8_t *buf = (uint8_t*) d; + uint32_t len = d->len +2; + uint32_t pos = 2; + + if ((len-2) % sizeof(struct dvb_rnt_rnt_scan_entry)) + return NULL; + + while(pos < len) { + bswap16(buf+pos); + bswap16(buf+pos+2); + pos += sizeof(struct dvb_rnt_rnt_scan_entry); + } + + return (struct dvb_rnt_rnt_scan_descriptor*) d; +} + +/** + * Iterator for entries field of a dvb_rnt_rnt_scan_descriptor. + * + * @param d dvb_rnt_rnt_scan_descriptor pointer. + * @param pos Variable holding a pointer to the current dvb_rnt_rnt_scan_entry. + */ +#define dvb_rnt_rnt_scan_descriptor_entries_for_each(d, pos) \ + for ((pos) = dvb_rnt_rnt_scan_descriptor_entries_first(d); \ + (pos); \ + (pos) = dvb_rnt_rnt_scan_descriptor_entries_next(d, pos)) + + + + + + + + + + +/******************************** PRIVATE CODE ********************************/ +static inline struct dvb_rnt_rnt_scan_entry* + dvb_rnt_rnt_scan_descriptor_entries_first(struct dvb_rnt_rnt_scan_descriptor *d) +{ + if (d->d.len == 0) + return NULL; + + return (struct dvb_rnt_rnt_scan_entry *) + ((uint8_t*) d + sizeof(struct dvb_rnt_rnt_scan_descriptor)); +} + +static inline struct dvb_rnt_rnt_scan_entry* + dvb_rnt_rnt_scan_descriptor_entries_next(struct dvb_rnt_rnt_scan_descriptor *d, + struct dvb_rnt_rnt_scan_entry *pos) +{ + uint8_t *end = (uint8_t*) d + 2 + d->d.len; + uint8_t *next = (uint8_t *) pos + sizeof(struct dvb_rnt_rnt_scan_entry); + + if (next >= end) + return NULL; + + return (struct dvb_rnt_rnt_scan_entry *) next; +} + +#ifdef __cplusplus +} +#endif + +#endif diff --git a/lib/libucsi/dvb/rst_section.c b/lib/libucsi/dvb/rst_section.c new file mode 100644 index 0000000..259d2b0 --- /dev/null +++ b/lib/libucsi/dvb/rst_section.c @@ -0,0 +1,47 @@ +/* + * section and descriptor parser + * + * Copyright (C) 2005 Kenneth Aafloy (kenneth@linuxtv.org) + * Copyright (C) 2005 Andrew de Quincey (adq_dvb@lidskialf.net) + * + * This library is free software; you can redistribute it and/or + * modify it under the terms of the GNU Lesser General Public + * License as published by the Free Software Foundation; either + * version 2.1 of the License, or (at your option) any later version. + * + * This library is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * Lesser General Public License for more details. + * + * You should have received a copy of the GNU Lesser General Public + * License along with this library; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA + */ + +#include <libucsi/dvb/rst_section.h> + +struct dvb_rst_section * dvb_rst_section_codec(struct section *section) +{ + uint8_t * buf = (uint8_t *) section; + size_t pos = sizeof(struct section); + size_t len = section_length(section); + struct dvb_rst_section * ret = (struct dvb_rst_section *) section; + + while (pos < len) { + if ((pos + sizeof(struct dvb_rst_status)) > len) + return NULL; + + bswap16(buf + pos); + bswap16(buf + pos + 2); + bswap16(buf + pos + 4); + bswap16(buf + pos + 6); + + pos += sizeof(struct dvb_rst_status); + } + + if (pos != len) + return NULL; + + return ret; +} diff --git a/lib/libucsi/dvb/rst_section.h b/lib/libucsi/dvb/rst_section.h new file mode 100644 index 0000000..4b3360b --- /dev/null +++ b/lib/libucsi/dvb/rst_section.h @@ -0,0 +1,110 @@ +/* + * section and descriptor parser + * + * Copyright (C) 2005 Kenneth Aafloy (kenneth@linuxtv.org) + * Copyright (C) 2005 Andrew de Quincey (adq_dvb@lidskialf.net) + * + * This library is free software; you can redistribute it and/or + * modify it under the terms of the GNU Lesser General Public + * License as published by the Free Software Foundation; either + * version 2.1 of the License, or (at your option) any later version. + * + * This library is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * Lesser General Public License for more details. + * + * You should have received a copy of the GNU Lesser General Public + * License along with this library; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA + */ + +#ifndef _UCSI_DVB_RST_SECTION_H +#define _UCSI_DVB_RST_SECTION_H 1 + +#ifdef __cplusplus +extern "C" +{ +#endif + +#include <libucsi/section.h> + +/** + * dvb_rst_section structure. + */ +struct dvb_rst_section { + struct section head; + + /* struct dvb_rst_status statuses[] */ +}; + +/** + * An entry in the statuses field of a dvb_rst_section structure. + */ +struct dvb_rst_status { + uint16_t transport_stream_id; + uint16_t original_network_id; + uint16_t service_id; + uint16_t event_id; + EBIT2(uint8_t reserved : 5; , + uint8_t running_status : 3; ); +}; + +/** + * Process a dvb_rst_section. + * + * @param section Pointer to a generic section strcuture. + * @return dvb_rst_section pointer, or NULL on error. + */ +struct dvb_rst_section *dvb_rst_section_codec(struct section *section); + +/** + * Iterator for entries in the statuses field of a dvb_rst_section. + * + * @param rst dvb_rst_section pointer. + * @param pos Variable containing a pointer to the current dvb_rst_status. + */ +#define dvb_rst_section_statuses_for_each(rst, pos) \ + for ((pos) = dvb_rst_section_statuses_first(rst); \ + (pos); \ + (pos) = dvb_rst_section_statuses_next(rst, pos)) + + + + + + + + + + +/******************************** PRIVATE CODE ********************************/ +static inline struct dvb_rst_status * + dvb_rst_section_statuses_first(struct dvb_rst_section *rst) +{ + size_t pos = sizeof(struct dvb_rst_section); + + if (pos >= section_length(&rst->head)) + return NULL; + + return (struct dvb_rst_status*) ((uint8_t *) rst + pos); +} + +static inline struct dvb_rst_status * + dvb_rst_section_statuses_next(struct dvb_rst_section * rst, + struct dvb_rst_status * pos) +{ + uint8_t *end = (uint8_t*) rst + section_length(&rst->head); + uint8_t *next = (uint8_t *) pos + sizeof(struct dvb_rst_status); + + if (next >= end) + return NULL; + + return (struct dvb_rst_status *) next; +} + +#ifdef __cplusplus +} +#endif + +#endif diff --git a/lib/libucsi/dvb/s2_satellite_delivery_descriptor.h b/lib/libucsi/dvb/s2_satellite_delivery_descriptor.h new file mode 100644 index 0000000..8f9fea8 --- /dev/null +++ b/lib/libucsi/dvb/s2_satellite_delivery_descriptor.h @@ -0,0 +1,116 @@ +/* + * section and descriptor parser + * + * Copyright (C) 2005 Kenneth Aafloy (kenneth@linuxtv.org) + * Copyright (C) 2005 Andrew de Quincey (adq_dvb@lidskialf.net) + * + * This library is free software; you can redistribute it and/or + * modify it under the terms of the GNU Lesser General Public + * License as published by the Free Software Foundation; either + * version 2.1 of the License, or (at your option) any later version. + * + * This library is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * Lesser General Public License for more details. + * + * You should have received a copy of the GNU Lesser General Public + * License along with this library; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA + */ + +#ifndef _UCSI_DVB_S2_SATELLITE_DELIVERY_DESCRIPTOR +#define _UCSI_DVB_S2_SATELLITE_DELIVERY_DESCRIPTOR 1 + +#ifdef __cplusplus +extern "C" +{ +#endif + +#include <libucsi/descriptor.h> +#include <libucsi/endianops.h> + +/** + * dvb_s2_satellite_delivery_descriptor structure. + */ +struct dvb_s2_satellite_delivery_descriptor { + struct descriptor d; + + EBIT4(uint8_t scrambling_sequence_selector : 1; , + uint8_t multiple_input_stream : 1; , + uint8_t backwards_compatability : 1; , + uint8_t reserved : 5; ); + /* uint32_t scrambling_sequence_index if scrambling_sequence_selector = 1 */ + /* uint8_t input_stream_id if multiple_input_stream = 1 */ +} __ucsi_packed; + +/** + * Process a dvb_s2_satellite_delivery_descriptor. + * + * @param d Pointer to a generic descriptor structure. + * @return dvb_s2_satellite_delivery_descriptor pointer, or NULL on error. + */ +static inline struct dvb_s2_satellite_delivery_descriptor* + dvb_s2_satellite_delivery_descriptor_codec(struct descriptor* d) +{ + struct dvb_s2_satellite_delivery_descriptor *s2 = + (struct dvb_s2_satellite_delivery_descriptor*) d; + + if (d->len < (sizeof(struct dvb_s2_satellite_delivery_descriptor) - 2)) + return NULL; + + int len = sizeof(struct dvb_s2_satellite_delivery_descriptor); + if (s2->scrambling_sequence_selector) { + len += 3; + } + if (s2->multiple_input_stream) { + len += 1; + } + + if (d->len < len) + return NULL; + + return s2; +} + +/** + * Accessor for the scrambling_sequence_index field of a dvb_s2_satellite_delivery_descriptor. + * + * @param s2 dvb_s2_satellite_delivery_descriptor pointer. + * @return The scrambling_sequence_index. + */ +static inline uint32_t dvb_s2_satellite_delivery_descriptor_scrambling_sequence_index(struct dvb_s2_satellite_delivery_descriptor *s2) +{ + uint8_t *tmp = (uint8_t*) s2; + + if (s2->scrambling_sequence_selector) { + return ((tmp[4] & 0x03) << 16) | (tmp[5] << 8) | tmp[6]; + } + return 0; +} + +/** + * Accessor for the input_stream_id field of a dvb_s2_satellite_delivery_descriptor. + * + * @param s2 dvb_s2_satellite_delivery_descriptor pointer. + * @return The input_stream_id. + */ +static inline uint8_t dvb_s2_satellite_delivery_descriptor_input_stream_id(struct dvb_s2_satellite_delivery_descriptor *s2) +{ + uint8_t *tmp = (uint8_t*) s2; + + if (!s2->multiple_input_stream) + return 0; + + int off = 3; + if (s2->scrambling_sequence_selector) { + off += 3; + } + return tmp[off]; +} + +#ifdef __cplusplus +} +#endif + +#endif diff --git a/lib/libucsi/dvb/satellite_delivery_descriptor.h b/lib/libucsi/dvb/satellite_delivery_descriptor.h new file mode 100644 index 0000000..b93d052 --- /dev/null +++ b/lib/libucsi/dvb/satellite_delivery_descriptor.h @@ -0,0 +1,73 @@ +/* + * section and descriptor parser + * + * Copyright (C) 2005 Kenneth Aafloy (kenneth@linuxtv.org) + * Copyright (C) 2005 Andrew de Quincey (adq_dvb@lidskialf.net) + * + * This library is free software; you can redistribute it and/or + * modify it under the terms of the GNU Lesser General Public + * License as published by the Free Software Foundation; either + * version 2.1 of the License, or (at your option) any later version. + * + * This library is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * Lesser General Public License for more details. + * + * You should have received a copy of the GNU Lesser General Public + * License along with this library; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA + */ + +#ifndef _UCSI_DVB_SATELLITE_DELIVERY_DESCRIPTOR +#define _UCSI_DVB_SATELLITE_DELIVERY_DESCRIPTOR 1 + +#ifdef __cplusplus +extern "C" +{ +#endif + +#include <libucsi/descriptor.h> +#include <libucsi/endianops.h> + +/** + * dvb_satellite_delivery_descriptor structure. + */ +struct dvb_satellite_delivery_descriptor { + struct descriptor d; + + uint32_t frequency; // BCD, units 10kHz + uint16_t orbital_position; + EBIT5(uint8_t west_east_flag : 1; , + uint8_t polarization : 2; , + uint8_t roll_off : 2; , + uint8_t modulation_system : 1; , + uint8_t modulation_type : 2; ); + EBIT2(uint32_t symbol_rate : 28; , // BCD, units 100Hz + uint32_t fec_inner : 4; ); +} __ucsi_packed; + +/** + * Process a dvb_satellite_delivery_descriptor. + * + * @param d Pointer to a generic descriptor structure. + * @return dvb_satellite_delivery_descriptor pointer, or NULL on error. + */ +static inline struct dvb_satellite_delivery_descriptor* + dvb_satellite_delivery_descriptor_codec(struct descriptor* d) +{ + if (d->len < (sizeof(struct dvb_satellite_delivery_descriptor) - 2)) + return NULL; + + bswap32((uint8_t*) d + 2); + bswap16((uint8_t*) d + 6); + bswap32((uint8_t*) d + 9); + + return (struct dvb_satellite_delivery_descriptor*) d; +} + +#ifdef __cplusplus +} +#endif + +#endif diff --git a/lib/libucsi/dvb/scrambling_descriptor.h b/lib/libucsi/dvb/scrambling_descriptor.h new file mode 100644 index 0000000..4669bc8 --- /dev/null +++ b/lib/libucsi/dvb/scrambling_descriptor.h @@ -0,0 +1,61 @@ +/* + * section and descriptor parser + * + * Copyright (C) 2005 Kenneth Aafloy (kenneth@linuxtv.org) + * Copyright (C) 2005 Andrew de Quincey (adq_dvb@lidskialf.net) + * + * This library is free software; you can redistribute it and/or + * modify it under the terms of the GNU Lesser General Public + * License as published by the Free Software Foundation; either + * version 2.1 of the License, or (at your option) any later version. + * + * This library is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * Lesser General Public License for more details. + * + * You should have received a copy of the GNU Lesser General Public + * License along with this library; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA + */ + +#ifndef _UCSI_DVB_SCRAMBLING_DESCRIPTOR +#define _UCSI_DVB_SCRAMBLING_DESCRIPTOR 1 + +#ifdef __cplusplus +extern "C" +{ +#endif + +#include <libucsi/descriptor.h> +#include <libucsi/endianops.h> + +/** + * dvb_scrambling_descriptor structure. + */ +struct dvb_scrambling_descriptor { + struct descriptor d; + + uint8_t scrambling_mode; +} __ucsi_packed; + +/** + * Process a dvb_scrambling_descriptor. + * + * @param d Generic descriptor structure. + * @return Pointer to dvb_scrambling_descriptor, or NULL on error. + */ +static inline struct dvb_scrambling_descriptor* + dvb_scrambling_descriptor_codec(struct descriptor* d) +{ + if (d->len != (sizeof(struct dvb_scrambling_descriptor) - 2)) + return NULL; + + return (struct dvb_scrambling_descriptor*) d; +} + +#ifdef __cplusplus +} +#endif + +#endif diff --git a/lib/libucsi/dvb/sdt_section.c b/lib/libucsi/dvb/sdt_section.c new file mode 100644 index 0000000..4c7824c --- /dev/null +++ b/lib/libucsi/dvb/sdt_section.c @@ -0,0 +1,60 @@ +/* + * section and descriptor parser + * + * Copyright (C) 2005 Kenneth Aafloy (kenneth@linuxtv.org) + * Copyright (C) 2005 Andrew de Quincey (adq_dvb@lidskialf.net) + * + * This library is free software; you can redistribute it and/or + * modify it under the terms of the GNU Lesser General Public + * License as published by the Free Software Foundation; either + * version 2.1 of the License, or (at your option) any later version. + * + * This library is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * Lesser General Public License for more details. + * + * You should have received a copy of the GNU Lesser General Public + * License along with this library; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA + */ + +#include <libucsi/dvb/sdt_section.h> + +struct dvb_sdt_section * dvb_sdt_section_codec(struct section_ext * ext) +{ + uint8_t * buf = (uint8_t *) ext; + size_t pos = sizeof(struct section_ext); + size_t len = section_ext_length(ext); + + if (len < sizeof(struct dvb_sdt_section)) + return NULL; + + bswap16(buf + pos); + pos += 3; + + while (pos < len) { + struct dvb_sdt_service * service = + (struct dvb_sdt_service *)(buf + pos); + + if ((pos + sizeof(struct dvb_sdt_service)) > len) + return NULL; + + bswap16(buf + pos); + bswap16(buf + pos + 3); + pos += sizeof(struct dvb_sdt_service); + + if ((pos + service->descriptors_loop_length) > len) + return NULL; + + if (verify_descriptors(buf + pos, service->descriptors_loop_length)) + return NULL; + + pos += service->descriptors_loop_length; + } + + if (pos != len) + return NULL; + + return (struct dvb_sdt_section *) ext; +} diff --git a/lib/libucsi/dvb/sdt_section.h b/lib/libucsi/dvb/sdt_section.h new file mode 100644 index 0000000..03a8569 --- /dev/null +++ b/lib/libucsi/dvb/sdt_section.h @@ -0,0 +1,157 @@ +/* + * section and descriptor parser + * + * Copyright (C) 2005 Kenneth Aafloy (kenneth@linuxtv.org) + * Copyright (C) 2005 Andrew de Quincey (adq_dvb@lidskialf.net) + * + * This library is free software; you can redistribute it and/or + * modify it under the terms of the GNU Lesser General Public + * License as published by the Free Software Foundation; either + * version 2.1 of the License, or (at your option) any later version. + * + * This library is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * Lesser General Public License for more details. + * + * You should have received a copy of the GNU Lesser General Public + * License along with this library; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA + */ + +#ifndef _UCSI_DVB_SDT_SECTION_H +#define _UCSI_DVB_SDT_SECTION_H 1 + +#ifdef __cplusplus +extern "C" +{ +#endif + +#include <libucsi/section.h> + +/** + * dvb_sdt_section structure. + */ +struct dvb_sdt_section { + struct section_ext head; + + uint16_t original_network_id; + uint8_t reserved; + /* struct dvb_sdt_service services[] */ +} __ucsi_packed; + +/** + * An entry in the services field of a dvb_sdt_section. + */ +struct dvb_sdt_service { + uint16_t service_id; + EBIT3(uint8_t reserved : 6; , + uint8_t eit_schedule_flag : 1; , + uint8_t eit_present_following_flag : 1; ); + EBIT3(uint16_t running_status : 3; , + uint16_t free_ca_mode : 1; , + uint16_t descriptors_loop_length :12; ); + /* struct descriptor descriptors[] */ +} __ucsi_packed; + +/** + * Process a dvb_sdt_section. + * + * @param section Pointer to a generic section_ext structure. + * @return dvb_sdt_section pointer, or NULL on error. + */ +struct dvb_sdt_section * dvb_sdt_section_codec(struct section_ext *section); + +/** + * Accessor for the transport_stream_id field of an SDT. + * + * @param sdt SDT pointer. + * @return The transport_stream_id. + */ +static inline uint16_t dvb_sdt_section_transport_stream_id(struct dvb_sdt_section *sdt) +{ + return sdt->head.table_id_ext; +} + +/** + * Iterator for the services field in a dvb_sdt_section. + * + * @param sdt dvb_sdt_section pointer. + * @param pos Variable containing a pointer to the current dvb_sdt_service. + */ +#define dvb_sdt_section_services_for_each(sdt, pos) \ + for ((pos) = dvb_sdt_section_services_first(sdt); \ + (pos); \ + (pos) = dvb_sdt_section_services_next(sdt, pos)) + +/** + * Iterator for the descriptors field in a dvb_sdt_service. + * + * @param service dvb_sdt_service pointer. + * @param pos Variable containing a pointer to the current descriptor. + */ +#define dvb_sdt_service_descriptors_for_each(service, pos) \ + for ((pos) = dvb_sdt_service_descriptors_first(service); \ + (pos); \ + (pos) = dvb_sdt_service_descriptors_next(service, pos)) + + + + + + + + + + + +/******************************** PRIVATE CODE ********************************/ +static inline struct dvb_sdt_service * + dvb_sdt_section_services_first(struct dvb_sdt_section * sdt) +{ + size_t pos = sizeof(struct dvb_sdt_section); + + if (pos >= section_ext_length(&sdt->head)) + return NULL; + + return (struct dvb_sdt_service*) ((uint8_t *) sdt + pos); +} + +static inline struct dvb_sdt_service * + dvb_sdt_section_services_next(struct dvb_sdt_section * sdt, + struct dvb_sdt_service * pos) +{ + uint8_t *end = (uint8_t*) sdt + section_ext_length(&sdt->head); + uint8_t *next = (uint8_t*) pos + sizeof(struct dvb_sdt_service) + + pos->descriptors_loop_length; + + if (next >= end) + return NULL; + + return (struct dvb_sdt_service *) next; +} + +static inline struct descriptor * + dvb_sdt_service_descriptors_first(struct dvb_sdt_service *svc) +{ + if (svc->descriptors_loop_length == 0) + return NULL; + + return (struct descriptor *) + ((uint8_t*) svc + sizeof(struct dvb_sdt_service)); +} + +static inline struct descriptor * + dvb_sdt_service_descriptors_next(struct dvb_sdt_service *svc, + struct descriptor* pos) +{ + return next_descriptor((uint8_t*) svc + sizeof(struct dvb_sdt_service), + svc->descriptors_loop_length, + pos); +} + +#ifdef __cplusplus +} +#endif + +#endif diff --git a/lib/libucsi/dvb/section.h b/lib/libucsi/dvb/section.h new file mode 100644 index 0000000..8488d71 --- /dev/null +++ b/lib/libucsi/dvb/section.h @@ -0,0 +1,107 @@ +/* + * section and descriptor parser + * + * Copyright (C) 2005 Kenneth Aafloy (kenneth@linuxtv.org) + * Copyright (C) 2005 Andrew de Quincey (adq_dvb@lidskialf.net) + * + * This library is free software; you can redistribute it and/or + * modify it under the terms of the GNU Lesser General Public + * License as published by the Free Software Foundation; either + * version 2.1 of the License, or (at your option) any later version. + * + * This library is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * Lesser General Public License for more details. + * + * You should have received a copy of the GNU Lesser General Public + * License along with this library; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA + */ + +#ifndef _UCSI_DVB_SECTION_H +#define _UCSI_DVB_SECTION_H 1 + +#ifdef __cplusplus +extern "C" +{ +#endif + +#include <libucsi/dvb/bat_section.h> +#include <libucsi/dvb/dit_section.h> +#include <libucsi/dvb/eit_section.h> +#include <libucsi/dvb/nit_section.h> +#include <libucsi/dvb/rst_section.h> +#include <libucsi/dvb/sdt_section.h> +#include <libucsi/dvb/sit_section.h> +#include <libucsi/dvb/st_section.h> +#include <libucsi/dvb/tdt_section.h> +#include <libucsi/dvb/tot_section.h> +#include <libucsi/dvb/tva_container_section.h> +#include <libucsi/dvb/int_section.h> + +/** + * The following are not implemented just now. + */ +/* +#include <libucsi/dvb/tva_related_content_section.h> +#include <libucsi/dvb/tva_content_identifier_section.h> +#include <libucsi/dvb/tva_resolution_provider_notification_section.h> +#include <libucsi/dvb/ait_section.h> +#include <libucsi/dvb/cit_section.h> +#include <libucsi/dvb/rct_section.h> +#include <libucsi/dvb/rnt_section.h> +*/ + +#define TRANSPORT_NIT_PID 0x10 +#define TRANSPORT_SDT_PID 0x11 +#define TRANSPORT_BAT_PID 0x11 +#define TRANSPORT_EIT_PID 0x12 +#define TRANSPORT_CIT_PID 0x12 +#define TRANSPORT_RST_PID 0x13 +#define TRANSPORT_TDT_PID 0x14 +#define TRANSPORT_TOT_PID 0x14 +#define TRANSPORT_RNT_PID 0x16 +#define TRANSPORT_DIT_PID 0x1e +#define TRANSPORT_SIT_PID 0x1f + +/** + * Enumeration of DVB section tags. + */ +enum dvb_section_tag { + stag_dvb_network_information_actual = 0x40, + stag_dvb_network_information_other = 0x41, + + stag_dvb_service_description_actual = 0x42, + stag_dvb_service_description_other = 0x46, + + stag_dvb_bouquet_association = 0x4a, + stag_dvb_update_notification = 0x4b, /* same syntax as IP_MAC */ + stag_dvb_ip_mac_notification = 0x4c, + + stag_dvb_event_information_nownext_actual = 0x4e, + stag_dvb_event_information_nownext_other = 0x4f, + stag_dvb_event_information_schedule_actual = 0x50, /* 0x50->0x5f */ + stag_dvb_event_information_schedule_other = 0x60, /* 0x60->0x6f */ + + stag_dvb_time_date = 0x70, + stag_dvb_running_status = 0x71, + stag_dvb_stuffing = 0x72, + stag_dvb_time_offset = 0x73, + stag_dvb_application_information = 0x74, + stag_dvb_tva_container = 0x75, + stag_dvb_tva_related_content = 0x76, + stag_dvb_tva_content_identifier = 0x77, + stag_dvb_mpe_fec = 0x78, + stag_dvb_tva_resolution_provider_notification = 0x79, + + stag_dvb_discontinuity_information = 0x7e, + stag_dvb_selection_information = 0x7f, + +}; + +#ifdef __cplusplus +} +#endif + +#endif diff --git a/lib/libucsi/dvb/service_availability_descriptor.h b/lib/libucsi/dvb/service_availability_descriptor.h new file mode 100644 index 0000000..64def75 --- /dev/null +++ b/lib/libucsi/dvb/service_availability_descriptor.h @@ -0,0 +1,98 @@ +/* + * section and descriptor parser + * + * Copyright (C) 2005 Kenneth Aafloy (kenneth@linuxtv.org) + * Copyright (C) 2005 Andrew de Quincey (adq_dvb@lidskialf.net) + * + * This library is free software; you can redistribute it and/or + * modify it under the terms of the GNU Lesser General Public + * License as published by the Free Software Foundation; either + * version 2.1 of the License, or (at your option) any later version. + * + * This library is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * Lesser General Public License for more details. + * + * You should have received a copy of the GNU Lesser General Public + * License along with this library; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA + */ + +#ifndef _UCSI_DVB_SERVICE_AVAILABILITY_DESCRIPTOR +#define _UCSI_DVB_SERVICE_AVAILABILITY_DESCRIPTOR 1 + +#ifdef __cplusplus +extern "C" +{ +#endif + +#include <libucsi/descriptor.h> +#include <libucsi/endianops.h> + +/** + * dvb_service_availability_descriptor structure. + */ +struct dvb_service_availability_descriptor { + struct descriptor d; + + EBIT2(uint8_t availability_flag : 1; , + uint8_t reserved : 7; ); + /* uint16_t cell_ids[] */ +} __ucsi_packed; + +/** + * Process a dvb_service_availability_descriptor. + * + * @param d Pointer to a generic descriptor structure. + * @return dvb_service_availability_descriptor pointer, or NULL on error. + */ +static inline struct dvb_service_availability_descriptor* + dvb_service_availability_descriptor_codec(struct descriptor* d) +{ + uint32_t pos = 0; + uint8_t* buf = (uint8_t*) d + 2; + uint32_t len = d->len; + + pos += sizeof(struct dvb_service_availability_descriptor) - 2; + + if ((len - pos) % 2) + return NULL; + + while(pos < len) { + bswap16(buf+pos); + pos += 2; + } + + return (struct dvb_service_availability_descriptor*) d; +} + +/** + * Accessor for the cell_ids field of a dvb_service_availability_descriptor. + * + * @param d dvb_service_availability_descriptor pointer. + * @return Pointer to the field. + */ +static inline uint16_t * + dvb_service_availability_descriptor_cell_ids(struct dvb_service_availability_descriptor *d) +{ + return (uint16_t *) ((uint8_t *) d + sizeof(struct dvb_service_availability_descriptor)); +} + +/** + * Determine the number of entries in the cell_ids field of a dvb_service_availability_descriptor. + * + * @param d dvb_service_availability_descriptor pointer. + * @return The number of entries. + */ +static inline int + dvb_service_availability_descriptor_cell_ids_count(struct dvb_service_availability_descriptor *d) +{ + return (d->d.len - 1) >> 1; +} + +#ifdef __cplusplus +} +#endif + +#endif diff --git a/lib/libucsi/dvb/service_descriptor.h b/lib/libucsi/dvb/service_descriptor.h new file mode 100644 index 0000000..dd0f0ec --- /dev/null +++ b/lib/libucsi/dvb/service_descriptor.h @@ -0,0 +1,163 @@ +/* + * section and descriptor parser + * + * Copyright (C) 2005 Kenneth Aafloy (kenneth@linuxtv.org) + * Copyright (C) 2005 Andrew de Quincey (adq_dvb@lidskialf.net) + * + * This library is free software; you can redistribute it and/or + * modify it under the terms of the GNU Lesser General Public + * License as published by the Free Software Foundation; either + * version 2.1 of the License, or (at your option) any later version. + * + * This library is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * Lesser General Public License for more details. + * + * You should have received a copy of the GNU Lesser General Public + * License along with this library; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA + */ + +#ifndef _UCSI_DVB_SERVICE_DESCRIPTOR +#define _UCSI_DVB_SERVICE_DESCRIPTOR 1 + +#ifdef __cplusplus +extern "C" +{ +#endif + +#include <libucsi/descriptor.h> +#include <libucsi/endianops.h> + +/** + * Possible values for service_type. + */ +enum { + DVB_SERVICE_TYPE_DIGITAL_TV = 0x01, + DVB_SERVICE_TYPE_DIGITAL_RADIO = 0x02, + DVB_SERVICE_TYPE_TELETEXT = 0x03, + DVB_SERVICE_TYPE_NVOD_REF = 0x04, + DVB_SERVICE_TYPE_NVOD_TIMESHIFT = 0x05, + DVB_SERVICE_TYPE_MOSAIC = 0x06, + DVB_SERVICE_TYPE_PAL = 0x07, + DVB_SERVICE_TYPE_SECAM = 0x08, + DVB_SERVICE_TYPE_D_D2_MAC = 0x09, + DVB_SERVICE_TYPE_FM_RADIO = 0x0a, + DVB_SERVICE_TYPE_NTSC = 0x0b, + DVB_SERVICE_TYPE_DATA_BCAST = 0x0c, + DVB_SERVICE_TYPE_EN50221 = 0x0d, + DVB_SERVICE_TYPE_RCS_MAP = 0x0e, + DVB_SERVICE_TYPE_RCS_FLS = 0x0f, + DVB_SERVICE_TYPE_MHP = 0x10, + DVB_SERVICE_TYPE_MPEG2_HD_DIGITAL_TV = 0x11, + DVB_SERVICE_TYPE_ADVANCED_CODEC_SD_DIGITAL_TV = 0x16, + DVB_SERVICE_TYPE_ADVANCED_CODEC_SD_NVOD_TIMESHIFT = 0x17, + DVB_SERVICE_TYPE_ADVANCED_CODEC_SD_NVOD_REF = 0x18, + DVB_SERVICE_TYPE_ADVANCED_CODEC_HD_DIGITAL_TV = 0x19, + DVB_SERVICE_TYPE_ADVANCED_CODEC_HD_NVOD_TIMESHIFT = 0x1a, + DVB_SERVICE_TYPE_ADVANCED_CODEC_HD_NVOD_REF = 0x1b, +}; + +/** + * dvb_service_descriptor structure. + */ +struct dvb_service_descriptor { + struct descriptor d; + + uint8_t service_type; + uint8_t service_provider_name_length; + /* uint8_t service_provider_name[] */ + /* struct dvb_service_descriptor_part2 part2 */ +} __ucsi_packed; + +/** + * Second part of a dvb_service_descriptor following the variable length + * service_provider_name field. + */ +struct dvb_service_descriptor_part2 { + uint8_t service_name_length; + /* uint8_t service_name[] */ +} __ucsi_packed; + +/** + * Process a dvb_service_descriptor. + * + * @param d Generic descriptor pointer. + * @return dvb_service_descriptor pointer, or NULL on error. + */ +static inline struct dvb_service_descriptor* + dvb_service_descriptor_codec(struct descriptor* d) +{ + struct dvb_service_descriptor *p = + (struct dvb_service_descriptor *) d; + struct dvb_service_descriptor_part2 *p2; + uint32_t pos = sizeof(struct dvb_service_descriptor) - 2; + uint32_t len = d->len; + + if (pos > len) + return NULL; + + pos += p->service_provider_name_length; + + if (pos > len) + return NULL; + + p2 = (struct dvb_service_descriptor_part2*) ((uint8_t*) d + 2 + pos); + + pos += sizeof(struct dvb_service_descriptor_part2); + + if (pos > len) + return NULL; + + pos += p2->service_name_length; + + if (pos != len) + return NULL; + + return p; +} + +/** + * Accessor for the service_provider_name field of a dvb_service_descriptor. + * + * @param d dvb_service_descriptor pointer. + * @return Pointer to the service_provider_name field. + */ +static inline uint8_t * + dvb_service_descriptor_service_provider_name(struct dvb_service_descriptor *d) +{ + return (uint8_t *) d + sizeof(struct dvb_service_descriptor); +} + +/** + * Accessor for the second part of a dvb_service_descriptor. + * + * @param d dvb_service_descriptor pointer. + * @return dvb_service_descriptor_part2 pointer. + */ +static inline struct dvb_service_descriptor_part2 * + dvb_service_descriptor_part2(struct dvb_service_descriptor *d) +{ + return (struct dvb_service_descriptor_part2 *) + ((uint8_t*) d + sizeof(struct dvb_service_descriptor) + + d->service_provider_name_length); +} + +/** + * Accessor for the service_name field of a dvb_service_descriptor_part2. + * + * @param d dvb_service_descriptor_part2 pointer. + * @return Pointer to the service_name field. + */ +static inline uint8_t * + dvb_service_descriptor_service_name(struct dvb_service_descriptor_part2 *d) +{ + return (uint8_t *) d + sizeof(struct dvb_service_descriptor_part2); +} + +#ifdef __cplusplus +} +#endif + +#endif diff --git a/lib/libucsi/dvb/service_identifier_descriptor.h b/lib/libucsi/dvb/service_identifier_descriptor.h new file mode 100644 index 0000000..2037a05 --- /dev/null +++ b/lib/libucsi/dvb/service_identifier_descriptor.h @@ -0,0 +1,82 @@ +/* + * section and descriptor parser + * + * Copyright (C) 2005 Kenneth Aafloy (kenneth@linuxtv.org) + * Copyright (C) 2005 Andrew de Quincey (adq_dvb@lidskialf.net) + * + * This library is free software; you can redistribute it and/or + * modify it under the terms of the GNU Lesser General Public + * License as published by the Free Software Foundation; either + * version 2.1 of the License, or (at your option) any later version. + * + * This library is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * Lesser General Public License for more details. + * + * You should have received a copy of the GNU Lesser General Public + * License along with this library; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA + */ + +#ifndef _UCSI_DVB_SERVICE_IDENTIFIER_DESCRIPTOR +#define _UCSI_DVB_SERVICE_IDENTIFIER_DESCRIPTOR 1 + +#ifdef __cplusplus +extern "C" +{ +#endif + +#include <libucsi/descriptor.h> +#include <libucsi/endianops.h> + +/** + * dvb_service_identifier_descriptor. + */ +struct dvb_service_identifier_descriptor { + struct descriptor d; + + /* uint8_t identifier[] */ +} __ucsi_packed; + +/** + * Process a dvb_service_identifier_descriptor. + * + * @param d Generic descriptor structure. + * @return dvb_service_identifier_descriptor pointer, or NULL on error. + */ +static inline struct dvb_service_identifier_descriptor* + dvb_service_identifier_descriptor_codec(struct descriptor* d) +{ + return (struct dvb_service_identifier_descriptor*) d; +} + +/** + * Retrieve a pointer to the identifier field of a dvb_service_identifier_descriptor. + * + * @param d dvb_service_identifier_descriptor pointer. + * @return Pointer to the field. + */ +static inline uint8_t * + dvb_service_identifier_descriptor_identifier(struct dvb_service_identifier_descriptor *d) +{ + return (uint8_t *) d + sizeof(struct dvb_service_identifier_descriptor); +} + +/** + * Calculate length of the identifier field of a dvb_service_identifier_descriptor. + * + * @param d dvb_service_identifier_descriptor pointer. + * @return The length in bytes. + */ +static inline int + dvb_service_identifier_descriptor_identifier_length(struct dvb_service_identifier_descriptor *d) +{ + return d->d.len; +} + +#ifdef __cplusplus +} +#endif + +#endif diff --git a/lib/libucsi/dvb/service_list_descriptor.h b/lib/libucsi/dvb/service_list_descriptor.h new file mode 100644 index 0000000..0086b25 --- /dev/null +++ b/lib/libucsi/dvb/service_list_descriptor.h @@ -0,0 +1,122 @@ +/* + * section and descriptor parser + * + * Copyright (C) 2005 Kenneth Aafloy (kenneth@linuxtv.org) + * Copyright (C) 2005 Andrew de Quincey (adq_dvb@lidskialf.net) + * + * This library is free software; you can redistribute it and/or + * modify it under the terms of the GNU Lesser General Public + * License as published by the Free Software Foundation; either + * version 2.1 of the License, or (at your option) any later version. + * + * This library is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * Lesser General Public License for more details. + * + * You should have received a copy of the GNU Lesser General Public + * License along with this library; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA + */ + +#ifndef _UCSI_DVB_SERVICE_LIST_DESCRIPTOR +#define _UCSI_DVB_SERVICE_LIST_DESCRIPTOR 1 + +#ifdef __cplusplus +extern "C" +{ +#endif + +#include <libucsi/descriptor.h> +#include <libucsi/endianops.h> + +/** + * dvb_service_list_descriptor structure. + */ +struct dvb_service_list_descriptor { + struct descriptor d; + + /* struct dvb_service_list_service services[] */ +} __ucsi_packed; + +/** + * An entry in the services field of a dvb_service_list_descriptor. + */ +struct dvb_service_list_service { + uint16_t service_id; + uint8_t service_type; +} __ucsi_packed; + +/** + * Process a dvb_service_list_descriptor. + * + * @param d Generic descriptor structure. + * @return dvb_service_list_descriptor pointer, or NULL on error. + */ +static inline struct dvb_service_list_descriptor* + dvb_service_list_descriptor_codec(struct descriptor* d) +{ + uint32_t pos = 0; + uint32_t len = d->len; + uint8_t *p = (uint8_t*) d + 2; + + if (len % sizeof(struct dvb_service_list_service)) + return NULL; + + while(pos < len) { + bswap16(p+pos); + pos += sizeof(struct dvb_service_list_service); + } + + return (struct dvb_service_list_descriptor*) d; +} + +/** + * Iterator for services field in a dvb_service_list_descriptor. + * + * @param d dvb_service_list_descriptor pointer. + * @param pos Variable containing a pointer to the current dvb_service_list_service. + */ +#define dvb_service_list_descriptor_services_for_each(d, pos) \ + for ((pos) = dvb_service_list_descriptor_services_first(d); \ + (pos); \ + (pos) = dvb_service_list_descriptor_services_next(d, pos)) + + + + + + + + + + +/******************************** PRIVATE CODE ********************************/ +static inline struct dvb_service_list_service* + dvb_service_list_descriptor_services_first(struct dvb_service_list_descriptor *d) +{ + if (d->d.len == 0) + return NULL; + + return (struct dvb_service_list_service *) + ((uint8_t*) d + sizeof(struct dvb_service_list_descriptor)); +} + +static inline struct dvb_service_list_service* + dvb_service_list_descriptor_services_next(struct dvb_service_list_descriptor *d, + struct dvb_service_list_service *pos) +{ + uint8_t *end = (uint8_t*) d + 2 + d->d.len; + uint8_t *next = (uint8_t *) pos + sizeof(struct dvb_service_list_service); + + if (next >= end) + return NULL; + + return (struct dvb_service_list_service *) next; +} + +#ifdef __cplusplus +} +#endif + +#endif diff --git a/lib/libucsi/dvb/service_move_descriptor.h b/lib/libucsi/dvb/service_move_descriptor.h new file mode 100644 index 0000000..7685e65 --- /dev/null +++ b/lib/libucsi/dvb/service_move_descriptor.h @@ -0,0 +1,67 @@ +/* + * section and descriptor parser + * + * Copyright (C) 2005 Kenneth Aafloy (kenneth@linuxtv.org) + * Copyright (C) 2005 Andrew de Quincey (adq_dvb@lidskialf.net) + * + * This library is free software; you can redistribute it and/or + * modify it under the terms of the GNU Lesser General Public + * License as published by the Free Software Foundation; either + * version 2.1 of the License, or (at your option) any later version. + * + * This library is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * Lesser General Public License for more details. + * + * You should have received a copy of the GNU Lesser General Public + * License along with this library; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA + */ + +#ifndef _UCSI_DVB_SERVICE_MOVE_DESCRIPTOR +#define _UCSI_DVB_SERVICE_MOVE_DESCRIPTOR 1 + +#ifdef __cplusplus +extern "C" +{ +#endif + +#include <libucsi/descriptor.h> +#include <libucsi/endianops.h> + +/** + * dvb_service_move_descriptor structure. + */ +struct dvb_service_move_descriptor { + struct descriptor d; + + uint16_t new_original_network_id; + uint16_t new_transport_stream_id; + uint16_t new_service_id; +} __ucsi_packed; + +/** + * Process a dvb_service_move_descriptor. + * + * @param d Generic descriptor structure. + * @return Pointer to dvb_service_move_descriptor, or NULL on error. + */ +static inline struct dvb_service_move_descriptor* + dvb_service_move_descriptor_codec(struct descriptor* d) +{ + if (d->len != (sizeof(struct dvb_service_move_descriptor) - 2)) + return NULL; + + bswap16((uint8_t*) d + 2); + bswap16((uint8_t*) d + 4); + bswap16((uint8_t*) d + 6); + + return (struct dvb_service_move_descriptor*) d; +} + +#ifdef __cplusplus +} +#endif + +#endif diff --git a/lib/libucsi/dvb/short_event_descriptor.h b/lib/libucsi/dvb/short_event_descriptor.h new file mode 100644 index 0000000..449c6f0 --- /dev/null +++ b/lib/libucsi/dvb/short_event_descriptor.h @@ -0,0 +1,135 @@ +/* + * section and descriptor parser + * + * Copyright (C) 2005 Kenneth Aafloy (kenneth@linuxtv.org) + * Copyright (C) 2005 Andrew de Quincey (adq_dvb@lidskialf.net) + * + * This library is free software; you can redistribute it and/or + * modify it under the terms of the GNU Lesser General Public + * License as published by the Free Software Foundation; either + * version 2.1 of the License, or (at your option) any later version. + * + * This library is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * Lesser General Public License for more details. + * + * You should have received a copy of the GNU Lesser General Public + * License along with this library; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA + */ + +#ifndef _UCSI_DVB_SHORT_EVENT_DESCRIPTOR +#define _UCSI_DVB_SHORT_EVENT_DESCRIPTOR 1 + +#ifdef __cplusplus +extern "C" +{ +#endif + +#include <libucsi/descriptor.h> +#include <libucsi/endianops.h> +#include <libucsi/types.h> + +/** + * dvb_short_event_descriptor structure. + */ +struct dvb_short_event_descriptor { + struct descriptor d; + + iso639lang_t language_code; + uint8_t event_name_length; + /* uint8_t event_name[] */ + /* struct dvb_short_event_descriptor_part2 part2 */ +} __ucsi_packed; + +/** + * Second part of a dvb_short_event_descriptor, following the variable length + * name field. + */ +struct dvb_short_event_descriptor_part2 { + uint8_t text_length; + /* uint8_t text[] */ +} __ucsi_packed; + +/** + * Process a dvb_short_event_descriptor. + * + * @param d Generic descriptor pointer. + * @return dvb_short_event_descriptor pointer, or NULL on error. + */ +static inline struct dvb_short_event_descriptor* + dvb_short_event_descriptor_codec(struct descriptor* d) +{ + struct dvb_short_event_descriptor *p = + (struct dvb_short_event_descriptor*) d; + struct dvb_short_event_descriptor_part2 *p2; + uint32_t pos = sizeof(struct dvb_short_event_descriptor) - 2; + uint32_t len = d->len; + + if (pos > len) + return NULL; + + pos += p->event_name_length; + + if (pos > len) + return NULL; + + p2 = (struct dvb_short_event_descriptor_part2*) ((uint8_t*) d + 2 + pos); + + pos += sizeof(struct dvb_short_event_descriptor_part2); + + if (pos > len) + return NULL; + + pos += p2->text_length; + + if (pos != len) + return NULL; + + return p; +} + +/** + * Accessor for name field in a dvb_short_event_descriptor. + * + * @param d dvb_short_event_descriptor pointer. + * @return Pointer to name field. + */ +static inline uint8_t * + dvb_short_event_descriptor_event_name(struct dvb_short_event_descriptor *d) +{ + return (uint8_t *) d + sizeof(struct dvb_short_event_descriptor); +} + +/** + * Accessor for second part of a dvb_short_event_descriptor. + * + * @param d dvb_short_event_descriptor pointer. + * @return dvb_short_event_descriptor_part2 pointer. + */ +static inline struct dvb_short_event_descriptor_part2 * + dvb_short_event_descriptor_part2(struct dvb_short_event_descriptor *d) +{ + return (struct dvb_short_event_descriptor_part2 *) + ((uint8_t*) d + sizeof(struct dvb_short_event_descriptor) + + d->event_name_length); +} + +/** + * Accessor for text field in a dvb_short_event_descriptor_part2. + * + * @param d dvb_short_event_descriptor_part2 pointer. + * @return Pointer to text field. + */ +static inline uint8_t * + dvb_short_event_descriptor_text(struct dvb_short_event_descriptor_part2 *d) +{ + return (uint8_t *) d + sizeof(struct dvb_short_event_descriptor_part2); +} + +#ifdef __cplusplus +} +#endif + +#endif diff --git a/lib/libucsi/dvb/short_smoothing_buffer_descriptor.h b/lib/libucsi/dvb/short_smoothing_buffer_descriptor.h new file mode 100644 index 0000000..e52d20a --- /dev/null +++ b/lib/libucsi/dvb/short_smoothing_buffer_descriptor.h @@ -0,0 +1,87 @@ +/* + * section and descriptor parser + * + * Copyright (C) 2005 Kenneth Aafloy (kenneth@linuxtv.org) + * Copyright (C) 2005 Andrew de Quincey (adq_dvb@lidskialf.net) + * + * This library is free software; you can redistribute it and/or + * modify it under the terms of the GNU Lesser General Public + * License as published by the Free Software Foundation; either + * version 2.1 of the License, or (at your option) any later version. + * + * This library is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * Lesser General Public License for more details. + * + * You should have received a copy of the GNU Lesser General Public + * License along with this library; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA + */ + +#ifndef _UCSI_DVB_SHORT_SMOOTHING_BUFFER_DESCRIPTOR +#define _UCSI_DVB_SHORT_SMOOTHING_BUFFER_DESCRIPTOR 1 + +#ifdef __cplusplus +extern "C" +{ +#endif + +#include <libucsi/descriptor.h> +#include <libucsi/endianops.h> + +/** + * dvb_short_smoothing_buffer_descriptor structure. + */ +struct dvb_short_smoothing_buffer_descriptor { + struct descriptor d; + + EBIT2(uint8_t sb_size : 2; , + uint8_t sb_leak_rate : 6; ); + /* uint8_t reserved [] */ +} __ucsi_packed; + +/** + * Process a dvb_short_smoothing_buffer_descriptor. + * + * @param d Generic descriptor structure. + * @return dvb_short_smoothing_buffer_descriptor pointer, or NULL on error. + */ +static inline struct dvb_short_smoothing_buffer_descriptor* + dvb_short_smoothing_buffer_descriptor_codec(struct descriptor* d) +{ + if (d->len < (sizeof(struct dvb_short_smoothing_buffer_descriptor) - 2)) + return NULL; + + return (struct dvb_short_smoothing_buffer_descriptor*) d; +} + +/** + * Accessor for reserved field in a dvb_short_smoothing_buffer_descriptor. + * + * @param d dvb_short_smoothing_buffer_descriptor pointer. + * @return Pointer to reserved field. + */ +static inline uint8_t * + dvb_short_smoothing_buffer_descriptor_reserved(struct dvb_short_smoothing_buffer_descriptor *d) +{ + return (uint8_t*) d + sizeof(struct dvb_short_smoothing_buffer_descriptor); +} + +/** + * Calculate length of reserved field in a dvb_short_smoothing_buffer_descriptor. + * + * @param d dvb_short_smoothing_buffer_descriptor pointer. + * @return Length of the field in bytes. + */ +static inline int + dvb_short_smoothing_buffer_descriptor_reserved_length(struct dvb_short_smoothing_buffer_descriptor *d) +{ + return d->d.len - 1; +} + +#ifdef __cplusplus +} +#endif + +#endif diff --git a/lib/libucsi/dvb/sit_section.c b/lib/libucsi/dvb/sit_section.c new file mode 100644 index 0000000..06c228c --- /dev/null +++ b/lib/libucsi/dvb/sit_section.c @@ -0,0 +1,69 @@ +/* + * section and descriptor parser + * + * Copyright (C) 2005 Kenneth Aafloy (kenneth@linuxtv.org) + * Copyright (C) 2005 Andrew de Quincey (adq_dvb@lidskialf.net) + * + * This library is free software; you can redistribute it and/or + * modify it under the terms of the GNU Lesser General Public + * License as published by the Free Software Foundation; either + * version 2.1 of the License, or (at your option) any later version. + * + * This library is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * Lesser General Public License for more details. + * + * You should have received a copy of the GNU Lesser General Public + * License along with this library; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA + */ + +#include <libucsi/dvb/sit_section.h> + +struct dvb_sit_section * dvb_sit_section_codec(struct section_ext * ext) +{ + uint8_t * buf = (uint8_t *) ext; + struct dvb_sit_section * ret = (struct dvb_sit_section *) ext; + size_t pos = sizeof(struct section_ext); + size_t len = section_ext_length(ext); + + if (len < sizeof(struct dvb_sit_section)) + return NULL; + + bswap16(buf + pos); + pos += 2; + + if ((pos + ret->transmission_info_loop_length) > len) + return NULL; + + if (verify_descriptors(buf + pos, ret->transmission_info_loop_length)) + return NULL; + + pos += ret->transmission_info_loop_length; + + while (pos < len) { + struct dvb_sit_service * service = (void*)(buf + pos); + + if ((pos + sizeof(struct dvb_sit_service)) > len) + return NULL; + + bswap16(buf + pos); + bswap16(buf + pos + 2); + bswap16(buf + pos + 4); + pos += sizeof(struct dvb_sit_service); + + if ((pos + service->service_loop_length) > len) + return NULL; + + if (verify_descriptors(buf + pos, service->service_loop_length)) + return NULL; + + pos += service->service_loop_length; + } + + if (pos != len) + return NULL; + + return ret; +} diff --git a/lib/libucsi/dvb/sit_section.h b/lib/libucsi/dvb/sit_section.h new file mode 100644 index 0000000..e06d596 --- /dev/null +++ b/lib/libucsi/dvb/sit_section.h @@ -0,0 +1,173 @@ +/* + * section and descriptor parser + * + * Copyright (C) 2005 Kenneth Aafloy (kenneth@linuxtv.org) + * Copyright (C) 2005 Andrew de Quincey (adq_dvb@lidskialf.net) + * + * This library is free software; you can redistribute it and/or + * modify it under the terms of the GNU Lesser General Public + * License as published by the Free Software Foundation; either + * version 2.1 of the License, or (at your option) any later version. + * + * This library is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * Lesser General Public License for more details. + * + * You should have received a copy of the GNU Lesser General Public + * License along with this library; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA + */ + +#ifndef _UCSI_DVB_SIT_SECTION_H +#define _UCSI_DVB_SIT_SECTION_H 1 + +#ifdef __cplusplus +extern "C" +{ +#endif + +#include <libucsi/section.h> + +/** + * dvb_sit_section structure. + */ +struct dvb_sit_section { + struct section_ext head; + + EBIT2(uint16_t reserved : 4; , + uint16_t transmission_info_loop_length :12; ); + /* struct descriptor descriptors[] */ + /* struct dvb_sit_service services[] */ +}; + +/** + * An entry in the services field of a dvb_sit_section. + */ +struct dvb_sit_service { + uint16_t service_id; + EBIT3(uint16_t reserved : 1; , + uint16_t running_status : 3; , + uint16_t service_loop_length :12; ); + /* struct descriptor descriptors[] */ +}; + +/** + * Process a dvb_sit_section. + * + * @param section Generic section_ext structure. + * @return dvb_sit_section pointer, or NULL on error. + */ +struct dvb_sit_section * dvb_sit_section_codec(struct section_ext *section); + +/** + * Iterator for descriptors field in a dvb_sit_section. + * + * @param sit dvb_sit_section Pointer. + * @param pos Variable holding pointer to current descriptor. + */ +#define dvb_sit_section_descriptors_for_each(sit, pos) \ + for ((pos) = dvb_sit_section_descriptors_first(sit); \ + (pos); \ + (pos) = dvb_sit_section_descriptors_first(sit)) + +/** + * Iterator for services field in a dvb_sit_section. + * + * @param sit dvb_sit_section Pointer. + * @param pos Variable holding pointer to current dvb_sit_service. + */ +#define dvb_sit_section_services_for_each(sit, pos) \ + for ((pos) = dvb_sit_section_services_first(sit); \ + (pos); \ + (pos) = dvb_sit_section_services_next(sit, pos)) + +/** + * Iterator for descriptors field in a dvb_sit_service. + * + * @param service dvb_sit_service Pointer. + * @param pos Variable holding pointer to current descriptor. + */ +#define dvb_sit_service_descriptors_for_each(service, pos) \ + for ((pos) = dvb_sit_service_descriptors_first(service); \ + (pos); \ + (pos) = dvb_sit_service_descriptors_next(service, pos)) + + + + + + + + + + +/******************************** PRIVATE CODE ********************************/ +static inline struct descriptor * + dvb_sit_section_descriptors_first(struct dvb_sit_section *sit) +{ + if (sit->transmission_info_loop_length == 0) + return NULL; + + return (struct descriptor *) + ((uint8_t *) sit + sizeof(struct dvb_sit_section)); +} + +static inline struct descriptor * + dvb_sit_section_descriptors_next(struct dvb_sit_section *sit, + struct descriptor* pos) +{ + return next_descriptor((uint8_t*) sit + sizeof(struct dvb_sit_section), + sit->transmission_info_loop_length, + pos); +} + +static inline struct dvb_sit_service * + dvb_sit_section_services_first(struct dvb_sit_section *sit) +{ + size_t pos = sizeof(struct dvb_sit_section) + sit->transmission_info_loop_length; + + if (pos >= section_ext_length(&sit->head)) + return NULL; + + return (struct dvb_sit_service*) ((uint8_t *) sit + pos); +} + +static inline struct dvb_sit_service * + dvb_sit_section_services_next(struct dvb_sit_section *sit, + struct dvb_sit_service *pos) +{ + uint8_t *end = (uint8_t*) sit + section_ext_length(&sit->head); + uint8_t *next = (uint8_t *) pos + sizeof(struct dvb_sit_service) + + pos->service_loop_length; + + if (next >= end) + return NULL; + + return (struct dvb_sit_service *) next; +} + +static inline struct descriptor * + dvb_sit_service_descriptors_first(struct dvb_sit_service * t) +{ + if (t->service_loop_length == 0) + return NULL; + + return (struct descriptor *) + ((uint8_t *) t + sizeof(struct dvb_sit_service)); +} + +static inline struct descriptor * + dvb_sit_service_descriptors_next(struct dvb_sit_service *t, + struct descriptor* pos) +{ + return next_descriptor((uint8_t*) t + sizeof(struct dvb_sit_service), + t->service_loop_length, + pos); +} + +#ifdef __cplusplus +} +#endif + +#endif diff --git a/lib/libucsi/dvb/st_section.c b/lib/libucsi/dvb/st_section.c new file mode 100644 index 0000000..0e60aa1 --- /dev/null +++ b/lib/libucsi/dvb/st_section.c @@ -0,0 +1,29 @@ +/* + * section and descriptor parser + * + * Copyright (C) 2005 Kenneth Aafloy (kenneth@linuxtv.org) + * Copyright (C) 2005 Andrew de Quincey (adq_dvb@lidskialf.net) + * + * This library is free software; you can redistribute it and/or + * modify it under the terms of the GNU Lesser General Public + * License as published by the Free Software Foundation; either + * version 2.1 of the License, or (at your option) any later version. + * + * This library is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * Lesser General Public License for more details. + * + * You should have received a copy of the GNU Lesser General Public + * License along with this library; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA + */ + +#include <libucsi/dvb/st_section.h> + +struct dvb_st_section * dvb_st_section_codec(struct section * section) +{ + struct dvb_st_section * ret = (struct dvb_st_section *)section; + + return ret; +} diff --git a/lib/libucsi/dvb/st_section.h b/lib/libucsi/dvb/st_section.h new file mode 100644 index 0000000..52ba888 --- /dev/null +++ b/lib/libucsi/dvb/st_section.h @@ -0,0 +1,77 @@ +/* + * section and descriptor parser + * + * Copyright (C) 2005 Kenneth Aafloy (kenneth@linuxtv.org) + * Copyright (C) 2005 Andrew de Quincey (adq_dvb@lidskialf.net) + * + * This library is free software; you can redistribute it and/or + * modify it under the terms of the GNU Lesser General Public + * License as published by the Free Software Foundation; either + * version 2.1 of the License, or (at your option) any later version. + * + * This library is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * Lesser General Public License for more details. + * + * You should have received a copy of the GNU Lesser General Public + * License along with this library; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA + */ + +#ifndef _UCSI_DVB_ST_SECTION_H +#define _UCSI_DVB_ST_SECTION_H 1 + +#ifdef __cplusplus +extern "C" +{ +#endif + +#include <libucsi/section.h> + +/** + * dvb_st_section structure. + */ +struct dvb_st_section { + struct section head; + + /* uint8_t data[] */ +}; + +/** + * Process a dvb_st_section. + * + * @param section Generic section header. + * @return dvb_st_section pointer, or NULL on error. + */ +struct dvb_st_section *dvb_st_section_codec(struct section *section); + +/** + * Accessor for data field of dvb_st_section. + * + * @param st dvb_st_section Pointer. + * @return Pointer to field. + */ +static inline uint8_t* + dvb_st_section_data(struct dvb_st_section* st) +{ + return (uint8_t*) st + sizeof(struct dvb_st_section); +} + +/** + * Calculate length of data field of dvb_st_section. + * + * @param st dvb_st_section Pointer. + * @return Length in bytes. + */ +static inline int + dvb_st_section_data_length(struct dvb_st_section* st) +{ + return st->head.length; +} + +#ifdef __cplusplus +} +#endif + +#endif diff --git a/lib/libucsi/dvb/stream_identifier_descriptor.h b/lib/libucsi/dvb/stream_identifier_descriptor.h new file mode 100644 index 0000000..262c7e2 --- /dev/null +++ b/lib/libucsi/dvb/stream_identifier_descriptor.h @@ -0,0 +1,61 @@ +/* + * section and descriptor parser + * + * Copyright (C) 2005 Kenneth Aafloy (kenneth@linuxtv.org) + * Copyright (C) 2005 Andrew de Quincey (adq_dvb@lidskialf.net) + * + * This library is free software; you can redistribute it and/or + * modify it under the terms of the GNU Lesser General Public + * License as published by the Free Software Foundation; either + * version 2.1 of the License, or (at your option) any later version. + * + * This library is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * Lesser General Public License for more details. + * + * You should have received a copy of the GNU Lesser General Public + * License along with this library; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA + */ + +#ifndef _UCSI_DVB_STREAM_IDENTIFIER_DESCRIPTOR +#define _UCSI_DVB_STREAM_IDENTIFIER_DESCRIPTOR 1 + +#ifdef __cplusplus +extern "C" +{ +#endif + +#include <libucsi/descriptor.h> +#include <libucsi/endianops.h> + +/** + * dvb_stream_identifier_descriptor structure. + */ +struct dvb_stream_identifier_descriptor { + struct descriptor d; + + uint8_t component_tag; +} __ucsi_packed; + +/** + * Process a dvb_stream_identifier_descriptor. + * + * @param d Pointer to generic descriptor structure. + * @return dvb_stream_identifier_descriptor pointer, or NULL on error. + */ +static inline struct dvb_stream_identifier_descriptor* + dvb_stream_identifier_descriptor_codec(struct descriptor* d) +{ + if (d->len != (sizeof(struct dvb_stream_identifier_descriptor) - 2)) + return NULL; + + return (struct dvb_stream_identifier_descriptor*) d; +} + +#ifdef __cplusplus +} +#endif + +#endif diff --git a/lib/libucsi/dvb/stuffing_descriptor.h b/lib/libucsi/dvb/stuffing_descriptor.h new file mode 100644 index 0000000..48e415d --- /dev/null +++ b/lib/libucsi/dvb/stuffing_descriptor.h @@ -0,0 +1,82 @@ +/* + * section and descriptor parser + * + * Copyright (C) 2005 Kenneth Aafloy (kenneth@linuxtv.org) + * Copyright (C) 2005 Andrew de Quincey (adq_dvb@lidskialf.net) + * + * This library is free software; you can redistribute it and/or + * modify it under the terms of the GNU Lesser General Public + * License as published by the Free Software Foundation; either + * version 2.1 of the License, or (at your option) any later version. + * + * This library is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * Lesser General Public License for more details. + * + * You should have received a copy of the GNU Lesser General Public + * License along with this library; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA + */ + +#ifndef _UCSI_DVB_STUFFING_DESCRIPTOR +#define _UCSI_DVB_STUFFING_DESCRIPTOR 1 + +#ifdef __cplusplus +extern "C" +{ +#endif + +#include <libucsi/descriptor.h> +#include <libucsi/endianops.h> + +/** + * dvb_stuffing_descriptor. + */ +struct dvb_stuffing_descriptor { + struct descriptor d; + + /* uint8_t data[] */ +} __ucsi_packed; + +/** + * Process a dvb_stuffing_descriptor. + * + * @param d Generic descriptor structure. + * @return dvb_stuffing_descriptor pointer, or NULL on error. + */ +static inline struct dvb_stuffing_descriptor* + dvb_stuffing_descriptor_codec(struct descriptor* d) +{ + return (struct dvb_stuffing_descriptor*) d; +} + +/** + * Retrieve a pointer to the data field of a dvb_stuffing_descriptor. + * + * @param d dvb_stuffing_descriptor pointer. + * @return Pointer to the field. + */ +static inline uint8_t * + dvb_stuffing_descriptor_data(struct dvb_stuffing_descriptor *d) +{ + return (uint8_t *) d + sizeof(struct dvb_stuffing_descriptor); +} + +/** + * Calculate length of the data field of a dvb_stuffing_descriptor. + * + * @param d dvb_stuffing_descriptor pointer. + * @return The length in bytes. + */ +static inline int + dvb_stuffing_descriptor_data_length(struct dvb_stuffing_descriptor *d) +{ + return d->d.len; +} + +#ifdef __cplusplus +} +#endif + +#endif diff --git a/lib/libucsi/dvb/subtitling_descriptor.h b/lib/libucsi/dvb/subtitling_descriptor.h new file mode 100644 index 0000000..74fc25a --- /dev/null +++ b/lib/libucsi/dvb/subtitling_descriptor.h @@ -0,0 +1,126 @@ +/* + * section and descriptor parser + * + * Copyright (C) 2005 Kenneth Aafloy (kenneth@linuxtv.org) + * Copyright (C) 2005 Andrew de Quincey (adq_dvb@lidskialf.net) + * + * This library is free software; you can redistribute it and/or + * modify it under the terms of the GNU Lesser General Public + * License as published by the Free Software Foundation; either + * version 2.1 of the License, or (at your option) any later version. + * + * This library is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * Lesser General Public License for more details. + * + * You should have received a copy of the GNU Lesser General Public + * License along with this library; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA + */ + +#ifndef _UCSI_DVB_SUBTITLING_DESCRIPTOR +#define _UCSI_DVB_SUBTITLING_DESCRIPTOR 1 + +#ifdef __cplusplus +extern "C" +{ +#endif + +#include <libucsi/descriptor.h> +#include <libucsi/endianops.h> +#include <libucsi/types.h> + +/** + * dvb_subtitling_descriptor structure. + */ +struct dvb_subtitling_descriptor { + struct descriptor d; + + /* struct dvb_subtitling_entry subtitles[] */ +} __ucsi_packed; + +/** + * An entry in the subtitles field of the a dvb_subtitling_descriptor. + */ +struct dvb_subtitling_entry { + iso639lang_t language_code; + uint8_t subtitling_type; + uint16_t composition_page_id; + uint16_t ancillary_page_id; +} __ucsi_packed; + +/** + * Process a dvb_subtitling_descriptor. + * + * @param d Generic descriptor. + * @return dvb_subtitling_descriptor pointer, or NULL on error. + */ +static inline struct dvb_subtitling_descriptor* + dvb_subtitling_descriptor_codec(struct descriptor* d) +{ + uint32_t pos = 0; + uint8_t* ptr = (uint8_t*) d + 2; + uint32_t len = d->len; + + if (len % sizeof(struct dvb_subtitling_entry)) + return NULL; + + while(pos < len) { + bswap16(ptr+pos+4); + bswap16(ptr+pos+6); + pos += sizeof(struct dvb_subtitling_entry); + } + + return (struct dvb_subtitling_descriptor*) d; +} + +/** + * Iterator for subtitles field in dvb_subtitling_descriptor. + * + * @param d dvb_subtitling_descriptor pointer. + * @param pos Variable containing a pointer to current dvb_subtitling_entry. + */ +#define dvb_subtitling_descriptor_subtitles_for_each(d, pos) \ + for ((pos) = dvb_subtitling_descriptor_subtitles_first(d); \ + (pos); \ + (pos) = dvb_subtitling_descriptor_subtitles_next(d, pos)) + + + + + + + + + + +/******************************** PRIVATE CODE ********************************/ +static inline struct dvb_subtitling_entry* + dvb_subtitling_descriptor_subtitles_first(struct dvb_subtitling_descriptor *d) +{ + if (d->d.len == 0) + return NULL; + + return (struct dvb_subtitling_entry *) + ((uint8_t*) d + sizeof(struct dvb_subtitling_descriptor)); +} + +static inline struct dvb_subtitling_entry* + dvb_subtitling_descriptor_subtitles_next(struct dvb_subtitling_descriptor *d, + struct dvb_subtitling_entry *pos) +{ + uint8_t *end = (uint8_t*) d + 2 + d->d.len; + uint8_t *next = (uint8_t *) pos + sizeof(struct dvb_subtitling_entry); + + if (next >= end) + return NULL; + + return (struct dvb_subtitling_entry *) next; +} + +#ifdef __cplusplus +} +#endif + +#endif diff --git a/lib/libucsi/dvb/target_ip_address_descriptor.h b/lib/libucsi/dvb/target_ip_address_descriptor.h new file mode 100644 index 0000000..c08b60e --- /dev/null +++ b/lib/libucsi/dvb/target_ip_address_descriptor.h @@ -0,0 +1,116 @@ +/* + * section and descriptor parser + * + * Copyright (C) 2005 Kenneth Aafloy (kenneth@linuxtv.org) + * Copyright (C) 2005 Andrew de Quincey (adq_dvb@lidskialf.net) + * Copyright (C) 2006 Stephane Este-Gracias (sestegra@free.fr) + * + * This library is free software; you can redistribute it and/or + * modify it under the terms of the GNU Lesser General Public + * License as published by the Free Software Foundation; either + * version 2.1 of the License, or (at your option) any later version. + * + * This library is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * Lesser General Public License for more details. + * + * You should have received a copy of the GNU Lesser General Public + * License along with this library; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA + */ + +#ifndef _UCSI_DVB_TARGET_IP_ADDRESS_DESCRIPTOR +#define _UCSI_DVB_TARGET_IP_ADDRESS_DESCRIPTOR 1 + +#ifdef __cplusplus +extern "C" +{ +#endif + +#include <libucsi/descriptor.h> +#include <libucsi/types.h> + +/** + * dvb_target_ip_address_descriptor structure. + */ +struct dvb_target_ip_address_descriptor { + struct descriptor d; + + uint8_t ipv4_addr_mask[4]; + /* struct dvb_ipv4_addr ipv4_addr[] */ +} __ucsi_packed; + +/** + * An entry in the ipv4_addr field of a dvb_target_ip_address_descriptor. + */ +struct dvb_ipv4_addr { + uint8_t ipv4_addr[4]; +} __ucsi_packed; + +/** + * Process a dvb_target_ip_address_descriptor. + * + * @param d Generic descriptor structure pointer. + * @return dvb_target_ip_address_descriptor pointer, or NULL on error. + */ +static inline struct dvb_target_ip_address_descriptor* + dvb_target_ip_address_descriptor_codec(struct descriptor* d) +{ + uint32_t len = d->len - 4; + + if (len % sizeof(struct dvb_ipv4_addr)) + return NULL; + + return (struct dvb_target_ip_address_descriptor*) d; +} + +/** + * Iterator for entries in the ipv4_addr field of a dvb_target_ip_address_descriptor. + * + * @param d dvb_target_ip_address_descriptor pointer. + * @param pos Variable containing a pointer to the current dvb_ipv4_addr. + */ +#define dvb_target_ip_address_descriptor_ipv4_addr_for_each(d, pos) \ + for ((pos) = dvb_target_ip_address_descriptor_ipv4_addr_first(d); \ + (pos); \ + (pos) = dvb_target_ip_address_descriptor_ipv4_addr_next(d, pos)) + + + + + + + + + + +/******************************** PRIVATE CODE ********************************/ +static inline struct dvb_ipv4_addr* + dvb_target_ip_address_descriptor_ipv4_addr_first(struct dvb_target_ip_address_descriptor *d) +{ + if (d->d.len == 4) + return NULL; + + return (struct dvb_ipv4_addr *) + ((uint8_t*) d + sizeof(struct dvb_target_ip_address_descriptor)); +} + +static inline struct dvb_ipv4_addr* + dvb_target_ip_address_descriptor_ipv4_addr_next(struct dvb_target_ip_address_descriptor *d, + struct dvb_ipv4_addr *pos) +{ + uint8_t *end = (uint8_t*) d + 2 + d->d.len - 4; + uint8_t *next = (uint8_t *) pos + sizeof(struct dvb_ipv4_addr); + + if (next >= end) + return NULL; + + return (struct dvb_ipv4_addr *) next; +} + +#ifdef __cplusplus +} +#endif + +#endif diff --git a/lib/libucsi/dvb/target_ip_slash_descriptor.h b/lib/libucsi/dvb/target_ip_slash_descriptor.h new file mode 100644 index 0000000..e5bc76a --- /dev/null +++ b/lib/libucsi/dvb/target_ip_slash_descriptor.h @@ -0,0 +1,116 @@ +/* + * section and descriptor parser + * + * Copyright (C) 2005 Kenneth Aafloy (kenneth@linuxtv.org) + * Copyright (C) 2005 Andrew de Quincey (adq_dvb@lidskialf.net) + * Copyright (C) 2006 Stephane Este-Gracias (sestegra@free.fr) + * + * This library is free software; you can redistribute it and/or + * modify it under the terms of the GNU Lesser General Public + * License as published by the Free Software Foundation; either + * version 2.1 of the License, or (at your option) any later version. + * + * This library is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * Lesser General Public License for more details. + * + * You should have received a copy of the GNU Lesser General Public + * License along with this library; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA + */ + +#ifndef _UCSI_DVB_TARGET_IP_SLASH_DESCRIPTOR +#define _UCSI_DVB_TARGET_IP_SLASH_DESCRIPTOR 1 + +#ifdef __cplusplus +extern "C" +{ +#endif + +#include <libucsi/descriptor.h> +#include <libucsi/types.h> + +/** + * dvb_target_ip_slash_descriptor structure. + */ +struct dvb_target_ip_slash_descriptor { + struct descriptor d; + + /* struct dvb_ipv4_slash ipv4_slash[] */ +} __ucsi_packed; + +/** + * An entry in the ipv4_slash field of a dvb_target_ip_slash_descriptor. + */ +struct dvb_ipv4_slash { + uint8_t ipv4_addr[4]; + uint8_t ipv4_slash; +} __ucsi_packed; + +/** + * Process a dvb_target_ip_slash_descriptor. + * + * @param d Generic descriptor structure pointer. + * @return dvb_target_ip_slash_descriptor pointer, or NULL on error. + */ +static inline struct dvb_target_ip_slash_descriptor* + dvb_target_ip_slash_descriptor_codec(struct descriptor* d) +{ + uint32_t len = d->len; + + if (len % sizeof(struct dvb_ipv4_slash)) + return NULL; + + return (struct dvb_target_ip_slash_descriptor*) d; +} + +/** + * Iterator for entries in the ipv4_slash field of a dvb_target_ip_slash_descriptor. + * + * @param d dvb_target_ip_slash_descriptor pointer. + * @param pos Variable containing a pointer to the current dvb_ipv4_slash. + */ +#define dvb_target_ip_slash_descriptor_ipv4_slash_for_each(d, pos) \ + for ((pos) = dvb_target_ip_slash_descriptor_ipv4_slash_first(d); \ + (pos); \ + (pos) = dvb_target_ip_slash_descriptor_ipv4_slash_next(d, pos)) + + + + + + + + + + +/******************************** PRIVATE CODE ********************************/ +static inline struct dvb_ipv4_slash* + dvb_target_ip_slash_descriptor_ipv4_slash_first(struct dvb_target_ip_slash_descriptor *d) +{ + if (d->d.len == 0) + return NULL; + + return (struct dvb_ipv4_slash *) + ((uint8_t*) d + sizeof(struct dvb_target_ip_slash_descriptor)); +} + +static inline struct dvb_ipv4_slash* + dvb_target_ip_slash_descriptor_ipv4_slash_next(struct dvb_target_ip_slash_descriptor *d, + struct dvb_ipv4_slash *pos) +{ + uint8_t *end = (uint8_t*) d + 2 + d->d.len; + uint8_t *next = (uint8_t *) pos + sizeof(struct dvb_ipv4_slash); + + if (next >= end) + return NULL; + + return (struct dvb_ipv4_slash *) next; +} + +#ifdef __cplusplus +} +#endif + +#endif diff --git a/lib/libucsi/dvb/target_ip_source_slash_descriptor.h b/lib/libucsi/dvb/target_ip_source_slash_descriptor.h new file mode 100644 index 0000000..8cade48 --- /dev/null +++ b/lib/libucsi/dvb/target_ip_source_slash_descriptor.h @@ -0,0 +1,118 @@ +/* + * section and descriptor parser + * + * Copyright (C) 2005 Kenneth Aafloy (kenneth@linuxtv.org) + * Copyright (C) 2005 Andrew de Quincey (adq_dvb@lidskialf.net) + * Copyright (C) 2006 Stephane Este-Gracias (sestegra@free.fr) + * + * This library is free software; you can redistribute it and/or + * modify it under the terms of the GNU Lesser General Public + * License as published by the Free Software Foundation; either + * version 2.1 of the License, or (at your option) any later version. + * + * This library is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * Lesser General Public License for more details. + * + * You should have received a copy of the GNU Lesser General Public + * License along with this library; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA + */ + +#ifndef _UCSI_DVB_TARGET_IP_SOURCE_SLASH_DESCRIPTOR +#define _UCSI_DVB_TARGET_IP_SOURCE_SLASH_DESCRIPTOR 1 + +#ifdef __cplusplus +extern "C" +{ +#endif + +#include <libucsi/descriptor.h> +#include <libucsi/types.h> + +/** + * dvb_target_ip_source_slash_descriptor structure. + */ +struct dvb_target_ip_source_slash_descriptor { + struct descriptor d; + + /* struct dvb_ipv4_source_slash ipv4_source_slash[] */ +} __ucsi_packed; + +/** + * An entry in the ipv4_source_slash field of a dvb_target_ip_source_slash_descriptor. + */ +struct dvb_ipv4_source_slash { + uint8_t ipv4_source_addr[4]; + uint8_t ipv4_source_slash; + uint8_t ipv4_dest_addr[4]; + uint8_t ipv4_dest_slash; +} __ucsi_packed; + +/** + * Process a dvb_target_ip_source_slash_descriptor. + * + * @param d Generic descriptor structure pointer. + * @return dvb_target_ip_source_slash_descriptor pointer, or NULL on error. + */ +static inline struct dvb_target_ip_source_slash_descriptor* + dvb_target_ip_source_slash_descriptor_codec(struct descriptor* d) +{ + uint32_t len = d->len; + + if (len % sizeof(struct dvb_ipv4_source_slash)) + return NULL; + + return (struct dvb_target_ip_source_slash_descriptor*) d; +} + +/** + * Iterator for entries in the ipv4_source_slash field of a dvb_target_ip_source_slash_descriptor. + * + * @param d dvb_target_ip_source_slash_descriptor pointer. + * @param pos Variable containing a pointer to the current dvb_ipv4_source_slash. + */ +#define dvb_target_ip_source_slash_descriptor_ipv4_source_slash_for_each(d, pos) \ + for ((pos) = dvb_target_ip_source_slash_descriptor_ipv4_source_slash_first(d); \ + (pos); \ + (pos) = dvb_target_ip_source_slash_descriptor_ipv4_source_slash_next(d, pos)) + + + + + + + + + + +/******************************** PRIVATE CODE ********************************/ +static inline struct dvb_ipv4_source_slash* + dvb_target_ip_source_slash_descriptor_ipv4_source_slash_first(struct dvb_target_ip_source_slash_descriptor *d) +{ + if (d->d.len == 0) + return NULL; + + return (struct dvb_ipv4_source_slash *) + ((uint8_t*) d + sizeof(struct dvb_target_ip_source_slash_descriptor)); +} + +static inline struct dvb_ipv4_source_slash* + dvb_target_ip_source_slash_descriptor_ipv4_source_slash_next(struct dvb_target_ip_source_slash_descriptor *d, + struct dvb_ipv4_source_slash *pos) +{ + uint8_t *end = (uint8_t*) d + 2 + d->d.len; + uint8_t *next = (uint8_t *) pos + sizeof(struct dvb_ipv4_source_slash); + + if (next >= end) + return NULL; + + return (struct dvb_ipv4_source_slash *) next; +} + +#ifdef __cplusplus +} +#endif + +#endif diff --git a/lib/libucsi/dvb/target_ipv6_address_descriptor.h b/lib/libucsi/dvb/target_ipv6_address_descriptor.h new file mode 100644 index 0000000..1b28b48 --- /dev/null +++ b/lib/libucsi/dvb/target_ipv6_address_descriptor.h @@ -0,0 +1,116 @@ +/* + * section and descriptor parser + * + * Copyright (C) 2005 Kenneth Aafloy (kenneth@linuxtv.org) + * Copyright (C) 2005 Andrew de Quincey (adq_dvb@lidskialf.net) + * Copyright (C) 2006 Stephane Este-Gracias (sestegra@free.fr) + * + * This library is free software; you can redistribute it and/or + * modify it under the terms of the GNU Lesser General Public + * License as published by the Free Software Foundation; either + * version 2.1 of the License, or (at your option) any later version. + * + * This library is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * Lesser General Public License for more details. + * + * You should have received a copy of the GNU Lesser General Public + * License along with this library; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA + */ + +#ifndef _UCSI_DVB_TARGET_IPV6_ADDRESS_DESCRIPTOR +#define _UCSI_DVB_TARGET_IPV6_ADDRESS_DESCRIPTOR 1 + +#ifdef __cplusplus +extern "C" +{ +#endif + +#include <libucsi/descriptor.h> +#include <libucsi/types.h> + +/** + * dvb_target_ipv6_address_descriptor structure. + */ +struct dvb_target_ipv6_address_descriptor { + struct descriptor d; + + uint8_t ipv6_addr_mask[16]; + /* struct dvb_ipv6_addr ipv6_addr[] */ +} __ucsi_packed; + +/** + * An entry in the ipv6_addr field of a dvb_target_ipv6_address_descriptor. + */ +struct dvb_ipv6_addr { + uint8_t ipv6_addr[16]; +} __ucsi_packed; + +/** + * Process a dvb_target_ipv6_address_descriptor. + * + * @param d Generic descriptor structure pointer. + * @return dvb_target_ipv6_address_descriptor pointer, or NULL on error. + */ +static inline struct dvb_target_ipv6_address_descriptor* + dvb_target_ipv6_address_descriptor_codec(struct descriptor* d) +{ + uint32_t len = d->len - 16; + + if (len % sizeof(struct dvb_ipv6_addr)) + return NULL; + + return (struct dvb_target_ipv6_address_descriptor*) d; +} + +/** + * Iterator for entries in the ipv6_addr field of a dvb_target_ipv6_address_descriptor. + * + * @param d dvb_target_ipv6_address_descriptor pointer. + * @param pos Variable containing a pointer to the current dvb_ipv6_addr. + */ +#define dvb_target_ipv6_address_descriptor_ipv6_addr_for_each(d, pos) \ + for ((pos) = dvb_target_ipv6_address_descriptor_ipv6_addr_first(d); \ + (pos); \ + (pos) = dvb_target_ipv6_address_descriptor_ipv6_addr_next(d, pos)) + + + + + + + + + + +/******************************** PRIVATE CODE ********************************/ +static inline struct dvb_ipv6_addr* + dvb_target_ipv6_address_descriptor_ipv6_addr_first(struct dvb_target_ipv6_address_descriptor *d) +{ + if (d->d.len == 16) + return NULL; + + return (struct dvb_ipv6_addr *) + ((uint8_t*) d + sizeof(struct dvb_target_ipv6_address_descriptor)); +} + +static inline struct dvb_ipv6_addr* + dvb_target_ipv6_address_descriptor_ipv6_addr_next(struct dvb_target_ipv6_address_descriptor *d, + struct dvb_ipv6_addr *pos) +{ + uint8_t *end = (uint8_t*) d + 2 + d->d.len - 16; + uint8_t *next = (uint8_t *) pos + sizeof(struct dvb_ipv6_addr); + + if (next >= end) + return NULL; + + return (struct dvb_ipv6_addr *) next; +} + +#ifdef __cplusplus +} +#endif + +#endif diff --git a/lib/libucsi/dvb/target_ipv6_slash_descriptor.h b/lib/libucsi/dvb/target_ipv6_slash_descriptor.h new file mode 100644 index 0000000..3dc6d75 --- /dev/null +++ b/lib/libucsi/dvb/target_ipv6_slash_descriptor.h @@ -0,0 +1,116 @@ +/* + * section and descriptor parser + * + * Copyright (C) 2005 Kenneth Aafloy (kenneth@linuxtv.org) + * Copyright (C) 2005 Andrew de Quincey (adq_dvb@lidskialf.net) + * Copyright (C) 2006 Stephane Este-Gracias (sestegra@free.fr) + * + * This library is free software; you can redistribute it and/or + * modify it under the terms of the GNU Lesser General Public + * License as published by the Free Software Foundation; either + * version 2.1 of the License, or (at your option) any later version. + * + * This library is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * Lesser General Public License for more details. + * + * You should have received a copy of the GNU Lesser General Public + * License along with this library; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA + */ + +#ifndef _UCSI_DVB_TARGET_IPV6_SLASH_DESCRIPTOR +#define _UCSI_DVB_TARGET_IPV6_SLASH_DESCRIPTOR 1 + +#ifdef __cplusplus +extern "C" +{ +#endif + +#include <libucsi/descriptor.h> +#include <libucsi/types.h> + +/** + * dvb_target_ipv6_slash_descriptor structure. + */ +struct dvb_target_ipv6_slash_descriptor { + struct descriptor d; + + /* struct dvb_ipv6_slash ipv6_slash[] */ +} __ucsi_packed; + +/** + * An entry in the ipv6_slash field of a dvb_target_ipv6_slash_descriptor. + */ +struct dvb_ipv6_slash { + uint8_t ipv6_addr[16]; + uint8_t ipv6_slash; +} __ucsi_packed; + +/** + * Process a dvb_target_ipv6_slash_descriptor. + * + * @param d Generic descriptor structure pointer. + * @return dvb_target_ipv6_slash_descriptor pointer, or NULL on error. + */ +static inline struct dvb_target_ipv6_slash_descriptor* + dvb_target_ipv6_slash_descriptor_codec(struct descriptor* d) +{ + uint32_t len = d->len; + + if (len % sizeof(struct dvb_ipv6_slash)) + return NULL; + + return (struct dvb_target_ipv6_slash_descriptor*) d; +} + +/** + * Iterator for entries in the ipv6_slash field of a dvb_target_ipv6_slash_descriptor. + * + * @param d dvb_target_ipv6_slash_descriptor pointer. + * @param pos Variable containing a pointer to the current dvb_ipv6_slash. + */ +#define dvb_target_ipv6_slash_descriptor_ipv6_slash_for_each(d, pos) \ + for ((pos) = dvb_target_ipv6_slash_descriptor_ipv6_slash_first(d); \ + (pos); \ + (pos) = dvb_target_ipv6_slash_descriptor_ipv6_slash_next(d, pos)) + + + + + + + + + + +/******************************** PRIVATE CODE ********************************/ +static inline struct dvb_ipv6_slash* + dvb_target_ipv6_slash_descriptor_ipv6_slash_first(struct dvb_target_ipv6_slash_descriptor *d) +{ + if (d->d.len == 0) + return NULL; + + return (struct dvb_ipv6_slash *) + ((uint8_t*) d + sizeof(struct dvb_target_ipv6_slash_descriptor)); +} + +static inline struct dvb_ipv6_slash* + dvb_target_ipv6_slash_descriptor_ipv6_slash_next(struct dvb_target_ipv6_slash_descriptor *d, + struct dvb_ipv6_slash *pos) +{ + uint8_t *end = (uint8_t*) d + 2 + d->d.len; + uint8_t *next = (uint8_t *) pos + sizeof(struct dvb_ipv6_slash); + + if (next >= end) + return NULL; + + return (struct dvb_ipv6_slash *) next; +} + +#ifdef __cplusplus +} +#endif + +#endif diff --git a/lib/libucsi/dvb/target_ipv6_source_slash_descriptor.h b/lib/libucsi/dvb/target_ipv6_source_slash_descriptor.h new file mode 100644 index 0000000..3a4b38e --- /dev/null +++ b/lib/libucsi/dvb/target_ipv6_source_slash_descriptor.h @@ -0,0 +1,118 @@ +/* + * section and descriptor parser + * + * Copyright (C) 2005 Kenneth Aafloy (kenneth@linuxtv.org) + * Copyright (C) 2005 Andrew de Quincey (adq_dvb@lidskialf.net) + * Copyright (C) 2006 Stephane Este-Gracias (sestegra@free.fr) + * + * This library is free software; you can redistribute it and/or + * modify it under the terms of the GNU Lesser General Public + * License as published by the Free Software Foundation; either + * version 2.1 of the License, or (at your option) any later version. + * + * This library is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * Lesser General Public License for more details. + * + * You should have received a copy of the GNU Lesser General Public + * License along with this library; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA + */ + +#ifndef _UCSI_DVB_TARGET_IPV6_SOURCE_SLASH_DESCRIPTOR +#define _UCSI_DVB_TARGET_IPV6_SOURCE_SLASH_DESCRIPTOR 1 + +#ifdef __cplusplus +extern "C" +{ +#endif + +#include <libucsi/descriptor.h> +#include <libucsi/types.h> + +/** + * dvb_target_ipv6_source_slash_descriptor structure. + */ +struct dvb_target_ipv6_source_slash_descriptor { + struct descriptor d; + + /* struct dvb_ipv6_source_slash ipv6_source_slash[] */ +} __ucsi_packed; + +/** + * An entry in the ipv6_source_slash field of a dvb_target_ipv6_source_slash_descriptor. + */ +struct dvb_ipv6_source_slash { + uint8_t ipv6_source_addr[16]; + uint8_t ipv6_source_slash; + uint8_t ipv6_dest_addr[16]; + uint8_t ipv6_dest_slash; +} __ucsi_packed; + +/** + * Process a dvb_target_ipv6_source_slash_descriptor. + * + * @param d Generic descriptor structure pointer. + * @return dvb_target_ipv6_source_slash_descriptor pointer, or NULL on error. + */ +static inline struct dvb_target_ipv6_source_slash_descriptor* + dvb_target_ipv6_source_slash_descriptor_codec(struct descriptor* d) +{ + uint32_t len = d->len; + + if (len % sizeof(struct dvb_ipv6_source_slash)) + return NULL; + + return (struct dvb_target_ipv6_source_slash_descriptor*) d; +} + +/** + * Iterator for entries in the ipv6_source_slash field of a dvb_target_ipv6_source_slash_descriptor. + * + * @param d dvb_target_ipv6_source_slash_descriptor pointer. + * @param pos Variable containing a pointer to the current dvb_ipv6_source_slash. + */ +#define dvb_target_ipv6_source_slash_descriptor_ipv6_source_slash_for_each(d, pos) \ + for ((pos) = dvb_target_ipv6_source_slash_descriptor_ipv6_source_slash_first(d); \ + (pos); \ + (pos) = dvb_target_ipv6_source_slash_descriptor_ipv6_source_slash_next(d, pos)) + + + + + + + + + + +/******************************** PRIVATE CODE ********************************/ +static inline struct dvb_ipv6_source_slash* + dvb_target_ipv6_source_slash_descriptor_ipv6_source_slash_first(struct dvb_target_ipv6_source_slash_descriptor *d) +{ + if (d->d.len == 0) + return NULL; + + return (struct dvb_ipv6_source_slash *) + ((uint8_t*) d + sizeof(struct dvb_target_ipv6_source_slash_descriptor)); +} + +static inline struct dvb_ipv6_source_slash* + dvb_target_ipv6_source_slash_descriptor_ipv6_source_slash_next(struct dvb_target_ipv6_source_slash_descriptor *d, + struct dvb_ipv6_source_slash *pos) +{ + uint8_t *end = (uint8_t*) d + 2 + d->d.len; + uint8_t *next = (uint8_t *) pos + sizeof(struct dvb_ipv6_source_slash); + + if (next >= end) + return NULL; + + return (struct dvb_ipv6_source_slash *) next; +} + +#ifdef __cplusplus +} +#endif + +#endif diff --git a/lib/libucsi/dvb/tdt_section.c b/lib/libucsi/dvb/tdt_section.c new file mode 100644 index 0000000..ba64fe9 --- /dev/null +++ b/lib/libucsi/dvb/tdt_section.c @@ -0,0 +1,33 @@ +/* + * section and descriptor parser + * + * Copyright (C) 2005 Kenneth Aafloy (kenneth@linuxtv.org) + * Copyright (C) 2005 Andrew de Quincey (adq_dvb@lidskialf.net) + * + * This library is free software; you can redistribute it and/or + * modify it under the terms of the GNU Lesser General Public + * License as published by the Free Software Foundation; either + * version 2.1 of the License, or (at your option) any later version. + * + * This library is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * Lesser General Public License for more details. + * + * You should have received a copy of the GNU Lesser General Public + * License along with this library; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA + */ + +#include <libucsi/dvb/tdt_section.h> + +struct dvb_tdt_section * dvb_tdt_section_codec(struct section * section) +{ + size_t len = section_length(section); + struct dvb_tdt_section * ret = (struct dvb_tdt_section *) section; + + if (len != sizeof(struct dvb_tdt_section)) + return NULL; + + return ret; +} diff --git a/lib/libucsi/dvb/tdt_section.h b/lib/libucsi/dvb/tdt_section.h new file mode 100644 index 0000000..fc2bcb8 --- /dev/null +++ b/lib/libucsi/dvb/tdt_section.h @@ -0,0 +1,54 @@ +/* + * section and descriptor parser + * + * Copyright (C) 2005 Kenneth Aafloy (kenneth@linuxtv.org) + * Copyright (C) 2005 Andrew de Quincey (adq_dvb@lidskialf.net) + * + * This library is free software; you can redistribute it and/or + * modify it under the terms of the GNU Lesser General Public + * License as published by the Free Software Foundation; either + * version 2.1 of the License, or (at your option) any later version. + * + * This library is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * Lesser General Public License for more details. + * + * You should have received a copy of the GNU Lesser General Public + * License along with this library; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA + */ + +#ifndef _UCSI_DVB_TDT_SECTION_H +#define _UCSI_DVB_TDT_SECTION_H + +#ifdef __cplusplus +extern "C" +{ +#endif + +#include <libucsi/section.h> +#include <libucsi/dvb/types.h> + +/** + * dvb_tdt_section structure. + */ +struct dvb_tdt_section { + struct section head; + + dvbdate_t utc_time; +} __ucsi_packed; + +/** + * Process a dvb_tdt_section. + * + * @param section Generic section header. + * @return dvb_tdt_section pointer, or NULL on error. + */ +struct dvb_tdt_section *dvb_tdt_section_codec(struct section *section); + +#ifdef __cplusplus +} +#endif + +#endif diff --git a/lib/libucsi/dvb/telephone_descriptor.h b/lib/libucsi/dvb/telephone_descriptor.h new file mode 100644 index 0000000..3dc43a1 --- /dev/null +++ b/lib/libucsi/dvb/telephone_descriptor.h @@ -0,0 +1,150 @@ +/* + * section and descriptor parser + * + * Copyright (C) 2005 Kenneth Aafloy (kenneth@linuxtv.org) + * Copyright (C) 2005 Andrew de Quincey (adq_dvb@lidskialf.net) + * + * This library is free software; you can redistribute it and/or + * modify it under the terms of the GNU Lesser General Public + * License as published by the Free Software Foundation; either + * version 2.1 of the License, or (at your option) any later version. + * + * This library is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * Lesser General Public License for more details. + * + * You should have received a copy of the GNU Lesser General Public + * License along with this library; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA + */ + +#ifndef _UCSI_DVB_TELEPHONE_DESCRIPTOR +#define _UCSI_DVB_TELEPHONE_DESCRIPTOR 1 + +#ifdef __cplusplus +extern "C" +{ +#endif + +#include <libucsi/descriptor.h> +#include <libucsi/endianops.h> + +/** + * dvb_telephone_descriptor stucture. + */ +struct dvb_telephone_descriptor { + struct descriptor d; + + EBIT3(uint8_t reserved_1 : 2; , + uint8_t foreign_availability : 1; , + uint8_t connection_type : 5; ); + EBIT4(uint8_t reserved_2 : 1; , + uint8_t country_prefix_length : 2; , + uint8_t international_area_code_length : 3; , + uint8_t operator_code_length : 2; ); + EBIT3(uint8_t reserved_3 : 1; , + uint8_t national_area_code_length : 3; , + uint8_t core_number_length : 4; ); + /* uint8_t country_prefix[] */ + /* uint8_t international_area_code[] */ + /* uint8_t operator_code[] */ + /* uint8_t national_area_code[] */ + /* uint8_t core_number[] */ +} __ucsi_packed; + + +/** + * Process a dvb_telephone_descriptor. + * + * @param d Generic descriptor. + * @return dvb_telephone_descriptor pointer, or NULL on error. + */ +static inline struct dvb_telephone_descriptor* + dvb_telephone_descriptor_codec(struct descriptor* d) +{ + struct dvb_telephone_descriptor* p = + (struct dvb_telephone_descriptor*) d; + uint32_t pos = sizeof(struct dvb_telephone_descriptor) - 2; + uint32_t len = d->len; + + if (pos > len) + return NULL; + + pos += p->country_prefix_length + + p->international_area_code_length + + p->operator_code_length + + p->national_area_code_length + + p->core_number_length; + + if (pos != len) + return NULL; + + return p; +} + +/** + * Retrieve pointer to country_prefix field of a dvb_telephone_descriptor. + * + * @param d dvb_telephone_descriptor pointer. + * @return Pointer to the field. + */ +static inline uint8_t* + dvb_telephone_descriptor_country_prefix(struct dvb_telephone_descriptor* d) +{ + return (uint8_t*) d + sizeof(struct dvb_telephone_descriptor); +} + +/** + * Retrieve pointer to international_area_code field of a dvb_telephone_descriptor. + * + * @param d dvb_telephone_descriptor pointer. + * @return Pointer to the field. + */ +static inline uint8_t* + dvb_telephone_descriptor_international_area_code(struct dvb_telephone_descriptor* d) +{ + return dvb_telephone_descriptor_country_prefix(d) + d->country_prefix_length; +} + +/** + * Retrieve pointer to operator_code field of a dvb_telephone_descriptor. + * + * @param d dvb_telephone_descriptor pointer. + * @return Pointer to the field. + */ +static inline uint8_t* + dvb_telephone_descriptor_operator_code(struct dvb_telephone_descriptor* d) +{ + return dvb_telephone_descriptor_international_area_code(d) + d->international_area_code_length; +} + +/** + * Retrieve pointer to national_area_code field of a dvb_telephone_descriptor. + * + * @param d dvb_telephone_descriptor pointer. + * @return Pointer to the field. + */ +static inline uint8_t* + dvb_telephone_descriptor_national_area_code(struct dvb_telephone_descriptor* d) +{ + return dvb_telephone_descriptor_operator_code(d) + d->operator_code_length; +} + +/** + * Retrieve pointer to core_number field of a dvb_telephone_descriptor. + * + * @param d dvb_telephone_descriptor pointer. + * @return Pointer to the field. + */ +static inline uint8_t* + dvb_telephone_descriptor_core_number(struct dvb_telephone_descriptor* d) +{ + return dvb_telephone_descriptor_national_area_code(d) + d->national_area_code_length; +} + +#ifdef __cplusplus +} +#endif + +#endif diff --git a/lib/libucsi/dvb/teletext_descriptor.h b/lib/libucsi/dvb/teletext_descriptor.h new file mode 100644 index 0000000..424c1cb --- /dev/null +++ b/lib/libucsi/dvb/teletext_descriptor.h @@ -0,0 +1,127 @@ +/* + * section and descriptor parser + * + * Copyright (C) 2005 Kenneth Aafloy (kenneth@linuxtv.org) + * Copyright (C) 2005 Andrew de Quincey (adq_dvb@lidskialf.net) + * + * This library is free software; you can redistribute it and/or + * modify it under the terms of the GNU Lesser General Public + * License as published by the Free Software Foundation; either + * version 2.1 of the License, or (at your option) any later version. + * + * This library is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * Lesser General Public License for more details. + * + * You should have received a copy of the GNU Lesser General Public + * License along with this library; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA + */ + +#ifndef _UCSI_DVB_TELETEXT_DESCRIPTOR +#define _UCSI_DVB_TELETEXT_DESCRIPTOR 1 + +#ifdef __cplusplus +extern "C" +{ +#endif + +#include <libucsi/descriptor.h> +#include <libucsi/endianops.h> +#include <libucsi/types.h> + +/** + * Possible values for the type field. + */ +enum { + DVB_TELETEXT_TYPE_INITIAL = 0x01, + DVB_TELETEXT_TYPE_SUBTITLE = 0x02, + DVB_TELETEXT_TYPE_ADDITIONAL = 0x03, + DVB_TELETEXT_TYPE_SCHEDULE = 0x04, + DVB_TELETEXT_TYPE_SUBTITLE_HEARING_IMPAIRED= 0x05, +}; + +/** + * dvb_teletext_descriptor structure. + */ +struct dvb_teletext_descriptor { + struct descriptor d; + + /* struct dvb_teletext_entry entries[] */ +} __ucsi_packed; + +/** + * An entry in the entries field of a dvb_teletext_descriptor. + */ +struct dvb_teletext_entry { + iso639lang_t language_code; + EBIT2(uint8_t type : 5; , + uint8_t magazine_number: 3; ); + uint8_t page_number; +} __ucsi_packed; + +/** + * Process a dvb_teletext_descriptor. + * + * @param d Generic descriptor. + * @return dvb_teletext_descriptor pointer, or NULL on error. + */ +static inline struct dvb_teletext_descriptor* + dvb_teletext_descriptor_codec(struct descriptor* d) +{ + if (d->len % sizeof(struct dvb_teletext_entry)) + return NULL; + + return (struct dvb_teletext_descriptor*) d; +} + +/** + * Iterator for entries field of a dvb_teletext_descriptor. + * + * @param d dvb_teletext_descriptor pointer. + * @param pos Variable holding a pointer to the current dvb_teletext_entry. + */ +#define dvb_teletext_descriptor_entries_for_each(d, pos) \ + for ((pos) = dvb_teletext_descriptor_entries_first(d); \ + (pos); \ + (pos) = dvb_teletext_descriptor_entries_next(d, pos)) + + + + + + + + + + +/******************************** PRIVATE CODE ********************************/ +static inline struct dvb_teletext_entry* + dvb_teletext_descriptor_entries_first(struct dvb_teletext_descriptor *d) +{ + if (d->d.len == 0) + return NULL; + + return (struct dvb_teletext_entry *) + ((uint8_t*) d + sizeof(struct dvb_teletext_descriptor)); +} + +static inline struct dvb_teletext_entry* + dvb_teletext_descriptor_entries_next(struct dvb_teletext_descriptor *d, + struct dvb_teletext_entry *pos) +{ + uint8_t *end = (uint8_t*) d + 2 + d->d.len; + uint8_t *next = (uint8_t *) pos + sizeof(struct dvb_teletext_entry); + + if (next >= end) + return NULL; + + return (struct dvb_teletext_entry *) next; +} + +#ifdef __cplusplus +} +#endif + +#endif diff --git a/lib/libucsi/dvb/terrestrial_delivery_descriptor.h b/lib/libucsi/dvb/terrestrial_delivery_descriptor.h new file mode 100644 index 0000000..c624dab --- /dev/null +++ b/lib/libucsi/dvb/terrestrial_delivery_descriptor.h @@ -0,0 +1,77 @@ +/* + * section and descriptor parser + * + * Copyright (C) 2005 Kenneth Aafloy (kenneth@linuxtv.org) + * Copyright (C) 2005 Andrew de Quincey (adq_dvb@lidskialf.net) + * + * This library is free software; you can redistribute it and/or + * modify it under the terms of the GNU Lesser General Public + * License as published by the Free Software Foundation; either + * version 2.1 of the License, or (at your option) any later version. + * + * This library is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * Lesser General Public License for more details. + * + * You should have received a copy of the GNU Lesser General Public + * License along with this library; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA + */ + +#ifndef _UCSI_DVB_TERRESTRIAL_DELIVERY_DESCRIPTOR +#define _UCSI_DVB_TERRESTRIAL_DELIVERY_DESCRIPTOR 1 + +#ifdef __cplusplus +extern "C" +{ +#endif + +#include <libucsi/descriptor.h> +#include <libucsi/endianops.h> + +/** + * dvb_terrestrial_delivery_descriptor structure. + */ +struct dvb_terrestrial_delivery_descriptor { + struct descriptor d; + + uint32_t centre_frequency; // Normal integer, units 10Hz + EBIT5(uint8_t bandwidth : 3; , + uint8_t priority : 1; , + uint8_t time_slicing_indicator : 1; , + uint8_t mpe_fec_indicator : 1; , + uint8_t reserved_1 : 2; ); + EBIT3(uint8_t constellation : 2; , + uint8_t hierarchy_information : 3; , + uint8_t code_rate_hp_stream : 3; ); + EBIT4(uint8_t code_rate_lp_stream : 3; , + uint8_t guard_interval : 2; , + uint8_t transmission_mode : 2; , + uint8_t other_frequency_flag : 1; ); + uint32_t reserved_2; +} __ucsi_packed; + +/** + * Process a dvb_terrestrial_delivery_descriptor. + * + * @param d Generic descriptor structure. + * @return dvb_terrestrial_delivery_descriptor pointer, or NULL on error. + */ +static inline struct dvb_terrestrial_delivery_descriptor* + dvb_terrestrial_delivery_descriptor_codec(struct descriptor* d) +{ + if (d->len != (sizeof(struct dvb_terrestrial_delivery_descriptor) - 2)) + return NULL; + + bswap32((uint8_t*) d + 2); + bswap32((uint8_t*) d + 9); + + return (struct dvb_terrestrial_delivery_descriptor*) d; +} + +#ifdef __cplusplus +} +#endif + +#endif diff --git a/lib/libucsi/dvb/time_shifted_event_descriptor.h b/lib/libucsi/dvb/time_shifted_event_descriptor.h new file mode 100644 index 0000000..6b4a9f6 --- /dev/null +++ b/lib/libucsi/dvb/time_shifted_event_descriptor.h @@ -0,0 +1,65 @@ +/* + * section and descriptor parser + * + * Copyright (C) 2005 Kenneth Aafloy (kenneth@linuxtv.org) + * Copyright (C) 2005 Andrew de Quincey (adq_dvb@lidskialf.net) + * + * This library is free software; you can redistribute it and/or + * modify it under the terms of the GNU Lesser General Public + * License as published by the Free Software Foundation; either + * version 2.1 of the License, or (at your option) any later version. + * + * This library is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * Lesser General Public License for more details. + * + * You should have received a copy of the GNU Lesser General Public + * License along with this library; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA + */ + +#ifndef _UCSI_DVB_TIME_SHIFTED_EVENT_DESCRIPTOR +#define _UCSI_DVB_TIME_SHIFTED_EVENT_DESCRIPTOR 1 + +#ifdef __cplusplus +extern "C" +{ +#endif + +#include <libucsi/descriptor.h> +#include <libucsi/endianops.h> + +/** + * dvb_time_shifted_event_descriptor structure. + */ +struct dvb_time_shifted_event_descriptor { + struct descriptor d; + + uint16_t reference_service_id; + uint16_t reference_event_id; +} __ucsi_packed; + +/** + * Process a dvb_time_shifted_event_descriptor. + * + * @param d Generic descriptor. + * @return dvb_time_shifted_event_descriptor pointer, or NULL on error. + */ +static inline struct dvb_time_shifted_event_descriptor* + dvb_time_shifted_event_descriptor_codec(struct descriptor* d) +{ + if (d->len != (sizeof(struct dvb_time_shifted_event_descriptor) - 2)) + return NULL; + + bswap16((uint8_t*) d + 2); + bswap16((uint8_t*) d + 4); + + return (struct dvb_time_shifted_event_descriptor*) d; +} + +#ifdef __cplusplus +} +#endif + +#endif diff --git a/lib/libucsi/dvb/time_shifted_service_descriptor.h b/lib/libucsi/dvb/time_shifted_service_descriptor.h new file mode 100644 index 0000000..c8dcc0e --- /dev/null +++ b/lib/libucsi/dvb/time_shifted_service_descriptor.h @@ -0,0 +1,63 @@ +/* + * section and descriptor parser + * + * Copyright (C) 2005 Kenneth Aafloy (kenneth@linuxtv.org) + * Copyright (C) 2005 Andrew de Quincey (adq_dvb@lidskialf.net) + * + * This library is free software; you can redistribute it and/or + * modify it under the terms of the GNU Lesser General Public + * License as published by the Free Software Foundation; either + * version 2.1 of the License, or (at your option) any later version. + * + * This library is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * Lesser General Public License for more details. + * + * You should have received a copy of the GNU Lesser General Public + * License along with this library; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA + */ + +#ifndef _UCSI_DVB_TIME_SHIFTED_SERVICE_DESCRIPTOR +#define _UCSI_DVB_TIME_SHIFTED_SERVICE_DESCRIPTOR 1 + +#ifdef __cplusplus +extern "C" +{ +#endif + +#include <libucsi/descriptor.h> +#include <libucsi/endianops.h> + +/** + * dvb_time_shifted_service_descriptor structure. + */ +struct dvb_time_shifted_service_descriptor { + struct descriptor d; + + uint16_t reference_service_id; +} __ucsi_packed; + +/** + * Process a dvb_time_shifted_service_descriptor. + * + * @param d Generic descriptor. + * @return Pointer to dvb_time_shifted_service_descriptor, or NULL on error. + */ +static inline struct dvb_time_shifted_service_descriptor* + dvb_time_shifted_service_descriptor_codec(struct descriptor* d) +{ + if (d->len != (sizeof(struct dvb_time_shifted_service_descriptor) - 2)) + return NULL; + + bswap16((uint8_t*) d + 2); + + return (struct dvb_time_shifted_service_descriptor*) d; +} + +#ifdef __cplusplus +} +#endif + +#endif diff --git a/lib/libucsi/dvb/tot_section.c b/lib/libucsi/dvb/tot_section.c new file mode 100644 index 0000000..5dc7890 --- /dev/null +++ b/lib/libucsi/dvb/tot_section.c @@ -0,0 +1,50 @@ +/* + * section and descriptor parser + * + * Copyright (C) 2005 Kenneth Aafloy (kenneth@linuxtv.org) + * Copyright (C) 2005 Andrew de Quincey (adq_dvb@lidskialf.net) + * + * This library is free software; you can redistribute it and/or + * modify it under the terms of the GNU Lesser General Public + * License as published by the Free Software Foundation; either + * version 2.1 of the License, or (at your option) any later version. + * + * This library is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * Lesser General Public License for more details. + * + * You should have received a copy of the GNU Lesser General Public + * License along with this library; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA + */ + +#include <libucsi/dvb/tot_section.h> + +struct dvb_tot_section *dvb_tot_section_codec(struct section *section) +{ + uint8_t * buf = (uint8_t *)section; + size_t pos = sizeof(struct section); + size_t len = section_length(section) - CRC_SIZE; + struct dvb_tot_section * ret = (struct dvb_tot_section *)section; + + if (len < sizeof(struct dvb_tot_section)) + return NULL; + + pos += 5; + bswap16(buf + pos); + pos += 2; + + if ((pos + ret->descriptors_loop_length) > len) + return NULL; + + if (verify_descriptors(buf + pos, ret->descriptors_loop_length)) + return NULL; + + pos += ret->descriptors_loop_length; + + if (pos != len) + return NULL; + + return ret; +} diff --git a/lib/libucsi/dvb/tot_section.h b/lib/libucsi/dvb/tot_section.h new file mode 100644 index 0000000..3474da1 --- /dev/null +++ b/lib/libucsi/dvb/tot_section.h @@ -0,0 +1,97 @@ +/* + * section and descriptor parser + * + * Copyright (C) 2005 Kenneth Aafloy (kenneth@linuxtv.org) + * Copyright (C) 2005 Andrew de Quincey (adq_dvb@lidskialf.net) + * + * This library is free software; you can redistribute it and/or + * modify it under the terms of the GNU Lesser General Public + * License as published by the Free Software Foundation; either + * version 2.1 of the License, or (at your option) any later version. + * + * This library is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * Lesser General Public License for more details. + * + * You should have received a copy of the GNU Lesser General Public + * License along with this library; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA + */ + +#ifndef _UCSI_DVB_TOT_SECTION_H +#define _UCSI_DVB_TOT_SECTION_H 1 + +#ifdef __cplusplus +extern "C" +{ +#endif + +#include <libucsi/section.h> +#include <libucsi/dvb/types.h> + +/** + * dvb_tot_section structure. + */ +struct dvb_tot_section { + struct section head; + + dvbdate_t utc_time; + EBIT2(uint16_t reserved : 4; , + uint16_t descriptors_loop_length:12; ); + /* struct descriptor descriptors[] */ +} __ucsi_packed; + +/** + * Process a dvb_tot_section. + * + * @param section Pointer to generic section structure. + * @return dvb_tot_section pointer, or NULL on error. + */ +struct dvb_tot_section * dvb_tot_section_codec(struct section *section); + +/** + * Iterator for descriptors field of dvb_tot_section. + * + * @param tot dvb_tot_section pointer. + * @param pos Variable holding a pointer to the current descriptor. + */ +#define dvb_tot_section_descriptors_for_each(tot, pos) \ + for ((pos) = dvb_tot_section_descriptors_first(tot); \ + (pos); \ + (pos) = dvb_tot_section_descriptors_next(tot, pos)) + + + + + + + + + + +/******************************** PRIVATE CODE ********************************/ +static inline struct descriptor * + dvb_tot_section_descriptors_first(struct dvb_tot_section * tot) +{ + if (tot->descriptors_loop_length == 0) + return NULL; + + return (struct descriptor *) + ((uint8_t *) tot + sizeof(struct dvb_tot_section)); +} + +static inline struct descriptor * + dvb_tot_section_descriptors_next(struct dvb_tot_section *tot, + struct descriptor* pos) +{ + return next_descriptor((uint8_t *) tot + sizeof(struct dvb_tot_section), + tot->descriptors_loop_length, + pos); +} + +#ifdef __cplusplus +} +#endif + +#endif diff --git a/lib/libucsi/dvb/transport_stream_descriptor.h b/lib/libucsi/dvb/transport_stream_descriptor.h new file mode 100644 index 0000000..1797ec5 --- /dev/null +++ b/lib/libucsi/dvb/transport_stream_descriptor.h @@ -0,0 +1,82 @@ +/* + * section and descriptor parser + * + * Copyright (C) 2005 Kenneth Aafloy (kenneth@linuxtv.org) + * Copyright (C) 2005 Andrew de Quincey (adq_dvb@lidskialf.net) + * + * This library is free software; you can redistribute it and/or + * modify it under the terms of the GNU Lesser General Public + * License as published by the Free Software Foundation; either + * version 2.1 of the License, or (at your option) any later version. + * + * This library is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * Lesser General Public License for more details. + * + * You should have received a copy of the GNU Lesser General Public + * License along with this library; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA + */ + +#ifndef _UCSI_DVB_TRANSPORT_STREAM_DESCRIPTOR +#define _UCSI_DVB_TRANSPORT_STREAM_DESCRIPTOR 1 + +#ifdef __cplusplus +extern "C" +{ +#endif + +#include <libucsi/descriptor.h> +#include <libucsi/endianops.h> + +/** + * dvb_transport_stream_descriptor structure. + */ +struct dvb_transport_stream_descriptor { + struct descriptor d; + + /* uint8_t data[] */ +} __ucsi_packed; + +/** + * Process dvb_transport_stream_descriptor structure. + * + * @param d Pointer to generic descriptor. + * @return dvb_transport_stream_descriptor structure or NULL on error. + */ +static inline struct dvb_transport_stream_descriptor* + dvb_transport_stream_descriptor_codec(struct descriptor* d) +{ + return (struct dvb_transport_stream_descriptor*) d; +} + +/** + * Retrieve a pointer to the data field of a dvb_transport_stream_descriptor. + * + * @param d dvb_transport_stream_descriptor structure. + * @return Pointer to data field. + */ +static inline uint8_t * + dvb_transport_stream_descriptor_data(struct dvb_transport_stream_descriptor *d) +{ + return (uint8_t *) d + sizeof(struct dvb_transport_stream_descriptor); +} + +/** + * Calculate the length of the data field of a dvb_transport_stream_descriptor. + * + * @param d dvb_transport_stream_descriptor structure. + * @return length of data field in bytes. + */ +static inline int + dvb_transport_stream_descriptor_data_length(struct dvb_transport_stream_descriptor *d) +{ + return d->d.len; +} + +#ifdef __cplusplus +} +#endif + +#endif diff --git a/lib/libucsi/dvb/tva_container_section.c b/lib/libucsi/dvb/tva_container_section.c new file mode 100644 index 0000000..f526efc --- /dev/null +++ b/lib/libucsi/dvb/tva_container_section.c @@ -0,0 +1,33 @@ +/* + * section and descriptor parser + * + * Copyright (C) 2005 Kenneth Aafloy (kenneth@linuxtv.org) + * Copyright (C) 2005 Andrew de Quincey (adq_dvb@lidskialf.net) + * + * This library is free software; you can redistribute it and/or + * modify it under the terms of the GNU Lesser General Public + * License as published by the Free Software Foundation; either + * version 2.1 of the License, or (at your option) any later version. + * + * This library is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * Lesser General Public License for more details. + * + * You should have received a copy of the GNU Lesser General Public + * License along with this library; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA + */ + +#include <libucsi/dvb/tva_container_section.h> + +struct dvb_tva_container_section *dvb_tva_container_section_codec(struct section_ext *ext) +{ + size_t len = section_ext_length(ext); + struct dvb_tva_container_section* ret = (struct dvb_tva_container_section*) ext; + + if (len < sizeof(struct dvb_tva_container_section)) + return NULL; + + return ret; +} diff --git a/lib/libucsi/dvb/tva_container_section.h b/lib/libucsi/dvb/tva_container_section.h new file mode 100644 index 0000000..7d0abb1 --- /dev/null +++ b/lib/libucsi/dvb/tva_container_section.h @@ -0,0 +1,90 @@ +/* + * section and descriptor parser + * + * Copyright (C) 2005 Kenneth Aafloy (kenneth@linuxtv.org) + * Copyright (C) 2005 Andrew de Quincey (adq_dvb@lidskialf.net) + * + * This library is free software; you can redistribute it and/or + * modify it under the terms of the GNU Lesser General Public + * License as published by the Free Software Foundation; either + * version 2.1 of the License, or (at your option) any later version. + * + * This library is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * Lesser General Public License for more details. + * + * You should have received a copy of the GNU Lesser General Public + * License along with this library; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA + */ + +#ifndef _UCSI_DVB_TVA_CONTAINER_SECTION_H +#define _UCSI_DVB_TVA_CONTAINER_SECTION_H + +#ifdef __cplusplus +extern "C" +{ +#endif + +#include <libucsi/section.h> +#include <libucsi/dvb/types.h> + +/** + * dvb_tva_container_section structure. + */ +struct dvb_tva_container_section { + struct section_ext head; + + /* uint8_t data[] */ +} __ucsi_packed; + +/** + * Process a dvb_tva_container_section. + * + * @param section Generic section header. + * @return dvb_tdt_section pointer, or NULL on error. + */ +struct dvb_tva_container_section *dvb_tva_container_section_codec(struct section_ext *ext); + +/** + * Accessor for the container_id field of a tva container section. + * + * @param container dvb_tva_container_section pointer. + * @return The container_id. + */ +static inline uint16_t dvb_tva_container_section_container_id(struct dvb_tva_container_section *container) +{ + return container->head.table_id_ext; +} + +/** + * Accessor for the data field of a dvb_data_broadcast_id_descriptor. + * + * @param d dvb_data_broadcast_id_descriptor pointer. + * @return Pointer to the field. + */ +static inline uint8_t * +dvb_tva_container_section_data(struct dvb_tva_container_section *s) +{ + return (uint8_t *) s + sizeof(struct dvb_tva_container_section); +} + +/** + * Determine the number of bytes in the data field of a dvb_tva_container_section. + * + * @param d dvb_tva_container_section pointer. + * @return Length of the field in bytes. + */ +static inline int +dvb_tva_container_section_data_length(struct dvb_tva_container_section *s) +{ + return section_ext_length(&s->head) - sizeof(struct dvb_tva_container_section); +} + + +#ifdef __cplusplus +} +#endif + +#endif diff --git a/lib/libucsi/dvb/tva_id_descriptor.h b/lib/libucsi/dvb/tva_id_descriptor.h new file mode 100644 index 0000000..3b4f3e8 --- /dev/null +++ b/lib/libucsi/dvb/tva_id_descriptor.h @@ -0,0 +1,124 @@ +/* + * section and descriptor parser + * + * Copyright (C) 2005 Kenneth Aafloy (kenneth@linuxtv.org) + * Copyright (C) 2005 Andrew de Quincey (adq_dvb@lidskialf.net) + * + * This library is free software; you can redistribute it and/or + * modify it under the terms of the GNU Lesser General Public + * License as published by the Free Software Foundation; either + * version 2.1 of the License, or (at your option) any later version. + * + * This library is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * Lesser General Public License for more details. + * + * You should have received a copy of the GNU Lesser General Public + * License along with this library; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA + */ + +#ifndef _UCSI_DVB_TVA_ID_DESCRIPTOR +#define _UCSI_DVB_TVA_ID_DESCRIPTOR 1 + +#ifdef __cplusplus +extern "C" +{ +#endif + +#include <libucsi/descriptor.h> +#include <libucsi/endianops.h> + +/** + * dvb_tva_id_descriptor structure. + */ +struct dvb_tva_id_descriptor { + struct descriptor d; + + /* struct dvb_tva_id_entry entries[] */ +} __ucsi_packed; + +/** + * An entry in the entries field of a dvb_tva_id_descriptor. + */ +struct dvb_tva_id_entry { + uint16_t tva_id; + EBIT2(uint8_t reserved : 5; , + uint8_t running_status : 3; ); +} __ucsi_packed; + +/** + * Process a dvb_tva_id_descriptor. + * + * @param d Generic descriptor pointer. + * @return dvb_tva_id_descriptor pointer, or NULL on error. + */ +static inline struct dvb_tva_id_descriptor* + dvb_tva_id_descriptor_codec(struct descriptor* d) +{ + uint32_t pos = 0; + uint32_t len = d->len; + uint8_t* buf = (uint8_t*) d + 2; + + pos += sizeof(struct dvb_tva_id_descriptor) - 2; + if (len % sizeof(struct dvb_tva_id_entry)) + return NULL; + + while(pos < len) { + bswap16(buf+pos); + pos+=3; + } + + return (struct dvb_tva_id_descriptor*) d; +} + +/** + * Iterator for the entries field of a dvb_tva_id_descriptor. + * + * @param d dvb_tva_id_descriptor pointer. + * @param pos Variable containing a pointer to the current dvb_tva_id_entry. + */ +#define dvb_tva_id_descriptor_entries_for_each(d, pos) \ + for ((pos) = dvb_tva_id_descriptor_entries_first(d); \ + (pos); \ + (pos) = dvb_tva_id_descriptor_entries_next(d, pos)) + + + + + + + + + + +/******************************** PRIVATE CODE ********************************/ +static inline struct dvb_tva_id_entry* + dvb_tva_id_descriptor_entries_first(struct dvb_tva_id_descriptor *d) +{ + if (d->d.len == 0) + return NULL; + + return (struct dvb_tva_id_entry *) + ((uint8_t*) d + sizeof(struct dvb_tva_id_descriptor)); +} + +static inline struct dvb_tva_id_entry* + dvb_tva_id_descriptor_entries_next(struct dvb_tva_id_descriptor *d, + struct dvb_tva_id_entry *pos) +{ + uint8_t *end = (uint8_t*) d + 2 + d->d.len; + uint8_t *next = (uint8_t *) pos + sizeof(struct dvb_tva_id_entry); + + if (next >= end) + return NULL; + + return (struct dvb_tva_id_entry *) next; +} + +#ifdef __cplusplus +} +#endif + +#endif diff --git a/lib/libucsi/dvb/types.c b/lib/libucsi/dvb/types.c new file mode 100644 index 0000000..c1cf583 --- /dev/null +++ b/lib/libucsi/dvb/types.c @@ -0,0 +1,270 @@ +/* + * section and descriptor parser + * + * Copyright (C) 2005 Andrew de Quincey (adq_dvb@lidskialf.net) + * + * This library is free software; you can redistribute it and/or + * modify it under the terms of the GNU Lesser General Public + * License as published by the Free Software Foundation; either + * version 2.1 of the License, or (at your option) any later version. + * + * This library is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * Lesser General Public License for more details. + * + * You should have received a copy of the GNU Lesser General Public + * License along with this library; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA + */ + +#include <string.h> +#include "types.h" + +time_t dvbdate_to_unixtime(dvbdate_t dvbdate) +{ + int k = 0; + struct tm tm; + double mjd; + + /* check for the undefined value */ + if ((dvbdate[0] == 0xff) && + (dvbdate[1] == 0xff) && + (dvbdate[2] == 0xff) && + (dvbdate[3] == 0xff) && + (dvbdate[4] == 0xff)) { + return -1; + } + + memset(&tm, 0, sizeof(tm)); + mjd = (dvbdate[0] << 8) | dvbdate[1]; + + tm.tm_year = (int) ((mjd - 15078.2) / 365.25); + tm.tm_mon = (int) (((mjd - 14956.1) - (int) (tm.tm_year * 365.25)) / 30.6001); + tm.tm_mday = (int) mjd - 14956 - (int) (tm.tm_year * 365.25) - (int) (tm.tm_mon * 30.6001); + if ((tm.tm_mon == 14) || (tm.tm_mon == 15)) k = 1; + tm.tm_year += k; + tm.tm_mon = tm.tm_mon - 2 - k * 12; + tm.tm_sec = bcd_to_integer(dvbdate[4]); + tm.tm_min = bcd_to_integer(dvbdate[3]); + tm.tm_hour = bcd_to_integer(dvbdate[2]); + + return mktime(&tm); +} + +void unixtime_to_dvbdate(time_t unixtime, dvbdate_t dvbdate) +{ + struct tm tm; + double l = 0; + int mjd; + + /* the undefined value */ + if (unixtime == -1) { + memset(dvbdate, 0xff, 5); + return; + } + + gmtime_r(&unixtime, &tm); + tm.tm_mon++; + if ((tm.tm_mon == 1) || (tm.tm_mon == 2)) l = 1; + mjd = 14956 + tm.tm_mday + (int) ((tm.tm_year - l) * 365.25) + (int) ((tm.tm_mon + 1 + l * 12) * 30.6001); + + dvbdate[0] = (mjd & 0xff00) >> 8; + dvbdate[1] = mjd & 0xff; + dvbdate[2] = integer_to_bcd(tm.tm_hour); + dvbdate[3] = integer_to_bcd(tm.tm_min); + dvbdate[4] = integer_to_bcd(tm.tm_sec); +} + +int dvbduration_to_seconds(dvbduration_t dvbduration) +{ + int seconds = 0; + + seconds += (bcd_to_integer(dvbduration[0]) * 60 * 60); + seconds += (bcd_to_integer(dvbduration[1]) * 60); + seconds += bcd_to_integer(dvbduration[2]); + + return seconds; +} + +void seconds_to_dvbduration(int seconds, dvbduration_t dvbduration) +{ + int hours, mins; + + hours = seconds / (60*60); + seconds -= (hours * 60 * 60); + mins = seconds / 60; + seconds -= (mins * 60); + + dvbduration[0] = integer_to_bcd(hours); + dvbduration[1] = integer_to_bcd(mins); + dvbduration[2] = integer_to_bcd(seconds); +} + +int dvbhhmm_to_seconds(dvbhhmm_t dvbhhmm) +{ + int seconds = 0; + + seconds += (bcd_to_integer(dvbhhmm[0]) * 60 * 60); + seconds += (bcd_to_integer(dvbhhmm[1]) * 60); + + return seconds; +} + +void seconds_to_dvbhhmm(int seconds, dvbhhmm_t dvbhhmm) +{ + int hours, mins; + + hours = seconds / (60*60); + seconds -= (hours * 60 * 60); + mins = seconds / 60; + + dvbhhmm[0] = integer_to_bcd(hours); + dvbhhmm[1] = integer_to_bcd(mins); +} + +uint32_t integer_to_bcd(uint32_t intval) +{ + uint32_t val = 0; + + int i; + for(i=0; i<=28;i+=4) { + val |= ((intval % 10) << i); + intval /= 10; + } + + return val; +} + +uint32_t bcd_to_integer(uint32_t bcdval) +{ + uint32_t val = 0; + + int i; + for(i=28; i>=0;i-=4) { + val += ((bcdval >> i) & 0x0f); + if (i != 0) val *= 10; + } + + return val; +} + +const char *dvb_charset(char *dvb_text, int dvb_text_length, int *consumed) +{ + char *charset = "ISO6937"; + int used = 0; + + if (dvb_text_length == 0) + goto exit; + if (dvb_text[0] >= 32) + goto exit; + if (dvb_text[0] == 0x10) { + if (dvb_text_length < 3) + goto exit; + + used = 3; + uint16_t ext = (dvb_text[1] << 8) | dvb_text[2]; + switch(ext) { + case 0x01: + charset = "ISO8859-1"; + break; + case 0x02: + charset = "ISO8859-2"; + break; + case 0x03: + charset = "ISO8859-3"; + break; + case 0x04: + charset = "ISO8859-4"; + break; + case 0x05: + charset = "ISO8859-5"; + break; + case 0x06: + charset = "ISO8859-6"; + break; + case 0x07: + charset = "ISO8859-7"; + break; + case 0x08: + charset = "ISO8859-8"; + break; + case 0x09: + charset = "ISO8859-9"; + break; + case 0x0a: + charset = "ISO8859-10"; + break; + case 0x0b: + charset = "ISO8859-11"; + break; + case 0x0d: + charset = "ISO8859-13"; + break; + case 0x0e: + charset = "ISO8859-14"; + break; + case 0x0f: + charset = "ISO8859-15"; + break; + default: + used = 0; + break; + } + } else { + used = 1; + switch(dvb_text[0]) { + case 0x01: + charset = "ISO8859-5"; + break; + case 0x02: + charset = "ISO8859-6"; + break; + case 0x03: + charset = "ISO8859-7"; + break; + case 0x04: + charset = "ISO8859-8"; + break; + case 0x05: + charset = "ISO8859-9"; + break; + case 0x06: + charset = "ISO8859-10"; + break; + case 0x07: + charset = "ISO8859-11"; + break; + case 0x09: + charset = "ISO8859-13"; + break; + case 0x0a: + charset = "ISO8859-14"; + break; + case 0x0b: + charset = "ISO8859-15"; + break; + case 0x11: + charset = "UTF16"; + break; + case 0x12: + charset = "EUC-KR"; + break; + case 0x13: + charset = "GB2312"; + break; + case 0x14: + charset = "GBK"; + break; + case 0x15: + charset = "UTF8"; + break; + default: + used = 0; + break; + } + } +exit: + *consumed = used; + return charset; +} diff --git a/lib/libucsi/dvb/types.h b/lib/libucsi/dvb/types.h new file mode 100644 index 0000000..437c7c3 --- /dev/null +++ b/lib/libucsi/dvb/types.h @@ -0,0 +1,127 @@ +/* + * section and descriptor parser + * + * Copyright (C) 2005 Andrew de Quincey (adq_dvb@lidskialf.net) + * + * This library is free software; you can redistribute it and/or + * modify it under the terms of the GNU Lesser General Public + * License as published by the Free Software Foundation; either + * version 2.1 of the License, or (at your option) any later version. + * + * This library is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * Lesser General Public License for more details. + * + * You should have received a copy of the GNU Lesser General Public + * License along with this library; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA + */ + +#ifndef _UCSI_DVB_TYPES_H +#define _UCSI_DVB_TYPES_H 1 + +#ifdef __cplusplus +extern "C" +{ +#endif + +#include <stdint.h> +#include <time.h> + +typedef uint8_t dvbdate_t[5]; +typedef uint8_t dvbduration_t[3]; +typedef uint8_t dvbhhmm_t[2]; + +/** + * Running status values. + */ +enum { + DVB_RUNNING_STATUS_NOT_RUNNING = 0x01, + DVB_RUNNING_STATUS_FEW_SECONDS = 0x02, + DVB_RUNNING_STATUS_PAUSING = 0x03, + DVB_RUNNING_STATUS_RUNNING = 0x04, +}; + +/** + * Convert from a 5 byte DVB UTC date to unix time. + * Note: this functions expects the DVB date in network byte order. + * + * @param d Pointer to DVB date. + * @return The unix timestamp, or -1 if the dvbdate was set to the 'undefined' value + */ +extern time_t dvbdate_to_unixtime(dvbdate_t dvbdate); + +/** + * Convert from a unix timestemp to a 5 byte DVB UTC date. + * Note: this function will always output the DVB date in + * network byte order. + * + * @param unixtime The unix timestamp, or -1 for the 'undefined' value. + * @param utc Pointer to 5 byte DVB date. + */ +extern void unixtime_to_dvbdate(time_t unixtime, dvbdate_t dvbdate); + +/** + * Convert from a DVB BCD duration to a number of seconds. + * + * @param dvbduration Pointer to 3 byte DVB duration. + * @return Number of seconds. + */ +extern int dvbduration_to_seconds(dvbduration_t dvbduration); + +/** + * Convert from a number of seconds to a DVB 3 byte BCD duration. + * + * @param seconds The number of seconds. + * @param dvbduration Pointer to 3 byte DVB duration. + */ +extern void seconds_to_dvbduration(int seconds, dvbduration_t dvbduration); + +/** + * Convert from a DVB BCD HHMM to a number of seconds. + * + * @param dvbduration Pointer to 2 byte DVB HHMM. + * @return Number of seconds. + */ +extern int dvbhhmm_to_seconds(dvbhhmm_t dvbhhmm); + +/** + * Convert from a number of seconds to a DVB 2 byte BCD HHMM. + * + * @param seconds The number of seconds. + * @param dvbduration Pointer to 2 byte DVB HHMM. + */ +extern void seconds_to_dvbhhmm(int seconds, dvbhhmm_t dvbhhmm); + +/** + * Convert a __ucsi_packed BCD value into a normal integer. + * + * @param bcd The value to convert. + * @return The value. + */ +extern uint32_t bcd_to_integer(uint32_t bcd); + +/** + * Convert a normal integer into a __ucsi_packed BCD value. + * + * @param integer The value to convert. + * @return The value. + */ +extern uint32_t integer_to_bcd(uint32_t integer); + +/** + * Determine the (iconv compatable) character set of a dvb string. + * + * @param dvb_text DVB text concerned. + * @param dvb_text_length Length of text. + * @param consumed Out parameter of number of bytes used to encode the character set. + * @return Name of the character set. + */ +extern const char *dvb_charset(char *dvb_text, int dvb_text_length, int *consumed); + +#ifdef __cplusplus +} +#endif + +#endif diff --git a/lib/libucsi/dvb/vbi_data_descriptor.h b/lib/libucsi/dvb/vbi_data_descriptor.h new file mode 100644 index 0000000..b1d8703 --- /dev/null +++ b/lib/libucsi/dvb/vbi_data_descriptor.h @@ -0,0 +1,186 @@ +/* + * section and descriptor parser + * + * Copyright (C) 2005 Kenneth Aafloy (kenneth@linuxtv.org) + * Copyright (C) 2005 Andrew de Quincey (adq_dvb@lidskialf.net) + * + * This library is free software; you can redistribute it and/or + * modify it under the terms of the GNU Lesser General Public + * License as published by the Free Software Foundation; either + * version 2.1 of the License, or (at your option) any later version. + * + * This library is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * Lesser General Public License for more details. + * + * You should have received a copy of the GNU Lesser General Public + * License along with this library; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA + */ + +#ifndef _UCSI_DVB_VBI_DATA_DESCRIPTOR +#define _UCSI_DVB_VBI_DATA_DESCRIPTOR 1 + +#ifdef __cplusplus +extern "C" +{ +#endif + +#include <libucsi/descriptor.h> +#include <libucsi/endianops.h> + +/** + * Possible values for the data_service_id field. + */ +enum { + DVB_VBI_DATA_SERVICE_ID_EBU = 0x01, + DVB_VBI_DATA_SERVICE_ID_INVERTED = 0x02, + DVB_VBI_DATA_SERVICE_ID_VPS = 0x04, + DVB_VBI_DATA_SERVICE_ID_WSS = 0x05, + DVB_VBI_DATA_SERVICE_ID_CC = 0x06, + DVB_VBI_DATA_SERVICE_ID_MONO_422 = 0x07, +}; + +/** + * dvb_vbi_data_descriptor structure + */ +struct dvb_vbi_data_descriptor { + struct descriptor d; + + /* struct dvb_vbi_data_entry entries[] */ +} __ucsi_packed; + +/** + * An entry in the dvb_vbi_data_descriptor entries field. + */ +struct dvb_vbi_data_entry { + uint8_t data_service_id; + uint8_t data_length; + /* uint8_t data[] */ +} __ucsi_packed; + +/** + * Format of the dvb_vbi_data_entry data field, if data_service_id == 1,2,4,5,6,7. + */ +struct dvb_vbi_data_x { + EBIT3(uint8_t reserved : 2; , + uint8_t field_parity : 1; , + uint8_t line_offset : 5; ); +} __ucsi_packed; + +/** + * Process a dvb_vbi_data_descriptor. + * + * @param d Generic descriptor structure. + * @return dvb_vbi_data_descriptor pointer, or NULL on error. + */ +static inline struct dvb_vbi_data_descriptor* + dvb_vbi_data_descriptor_codec(struct descriptor* d) +{ + uint8_t* p = (uint8_t*) d + 2; + uint32_t pos = 0; + uint32_t len = d->len; + + while(pos < len) { + struct dvb_vbi_data_entry *e = + (struct dvb_vbi_data_entry*) (p+pos); + + pos += sizeof(struct dvb_vbi_data_entry); + + if (pos > len) + return NULL; + + pos += e->data_length; + + if (pos > len) + return NULL; + } + + return (struct dvb_vbi_data_descriptor*) d; +} + +/** + * Iterator for entries field in a dvb_vbi_data_descriptor structure. + * + * @param d Pointer to dvb_vbi_data_descriptor structure. + * @param pos Variable holding pointer to the current dvb_vbi_data_entry structure. + */ +#define dvb_vbi_data_descriptor_entries_for_each(d, pos) \ + for ((pos) = dvb_vbi_data_descriptor_entries_first(d); \ + (pos); \ + (pos) = dvb_vbi_data_descriptor_entries_next(d, pos)) + +/** + * Get a pointer to the data field of a dvb_vbi_data_entry. + * + * @param d dvb_vbi_data_entry structure. + * @return Pointer to the data field. + */ +static inline uint8_t * + dvb_vbi_data_entry_data(struct dvb_vbi_data_entry *d) +{ + return (uint8_t *) d + sizeof(struct dvb_vbi_data_entry); +} + +/** + * Get a pointer to the data field of a dvb_vbi_data_x for id 1,2,4,5,6,7. + * + * @param d dvb_vbi_data_entry structure. + * @return Pointer to the data field, or NULL if invalid + */ +static inline struct dvb_vbi_data_x* + dvb_vbi_data_entry_data_x(struct dvb_vbi_data_entry *d) +{ + switch(d->data_service_id) { + case 1: + case 2: + case 4: + case 5: + case 6: + case 7: + return (struct dvb_vbi_data_x*) ((uint8_t *) d + sizeof(struct dvb_vbi_data_entry)); + } + + return NULL; +} + + + + + + + + + + +/******************************** PRIVATE CODE ********************************/ +static inline struct dvb_vbi_data_entry* + dvb_vbi_data_descriptor_entries_first(struct dvb_vbi_data_descriptor *d) +{ + if (d->d.len == 0) + return NULL; + + return (struct dvb_vbi_data_entry *) + ((uint8_t*) d + sizeof(struct dvb_vbi_data_descriptor)); +} + +static inline struct dvb_vbi_data_entry* + dvb_vbi_data_descriptor_entries_next(struct dvb_vbi_data_descriptor *d, + struct dvb_vbi_data_entry *pos) +{ + uint8_t *end = (uint8_t*) d + 2 + d->d.len; + uint8_t *next = (uint8_t *) pos + sizeof(struct dvb_vbi_data_entry) + + pos->data_length; + + if (next >= end) + return NULL; + + return (struct dvb_vbi_data_entry *) next; +} + +#ifdef __cplusplus +} +#endif + +#endif diff --git a/lib/libucsi/dvb/vbi_teletext_descriptor.h b/lib/libucsi/dvb/vbi_teletext_descriptor.h new file mode 100644 index 0000000..fd779d7 --- /dev/null +++ b/lib/libucsi/dvb/vbi_teletext_descriptor.h @@ -0,0 +1,116 @@ +/* + * section and descriptor parser + * + * Copyright (C) 2005 Kenneth Aafloy (kenneth@linuxtv.org) + * Copyright (C) 2005 Andrew de Quincey (adq_dvb@lidskialf.net) + * + * This library is free software; you can redistribute it and/or + * modify it under the terms of the GNU Lesser General Public + * License as published by the Free Software Foundation; either + * version 2.1 of the License, or (at your option) any later version. + * + * This library is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * Lesser General Public License for more details. + * + * You should have received a copy of the GNU Lesser General Public + * License along with this library; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA + */ + +#ifndef _UCSI_DVB_VBI_TELETEXT_DESCRIPTOR +#define _UCSI_DVB_VBI_TELETEXT_DESCRIPTOR 1 + +#ifdef __cplusplus +extern "C" +{ +#endif + +#include <libucsi/descriptor.h> +#include <libucsi/endianops.h> +#include <libucsi/types.h> + +/** + * dvb_vbi_teletext_descriptor structure + */ +struct dvb_vbi_teletext_descriptor { + struct descriptor d; + + /* struct dvb_vbi_teletext_entry entries[] */ +} __ucsi_packed; + +/** + * An entry in a dvb_vbi_teletext_descriptor structure. + */ +struct dvb_vbi_teletext_entry { + iso639lang_t language_code; + EBIT2(uint8_t type : 5; , + uint8_t magazine_number: 3; ); + uint8_t page_number; +} __ucsi_packed; + +/** + * Process an dvb_vbi_teletext_descriptor. + * + * @param d Generic descriptor. + * @return dvb_vbi_teletext_descriptor pointer, or NULL on error. + */ +static inline struct dvb_vbi_teletext_descriptor* + dvb_vbi_teletext_descriptor_codec(struct descriptor* d) +{ + if (d->len % sizeof(struct dvb_vbi_teletext_entry)) + return NULL; + + return (struct dvb_vbi_teletext_descriptor*) d; +} + +/** + * Iterator for entries field of a dvb_vbi_teletext_descriptor. + * + * @param d Pointer to dvb_vbi_teletext_descriptor. + * @param pos Variable holding a pointer to the current dvb_vbi_teletext_entry. + */ +#define dvb_vbi_teletext_descriptor_entries_for_each(d, pos) \ + for ((pos) = dvb_vbi_teletext_descriptor_entries_first(d); \ + (pos); \ + (pos) = dvb_vbi_teletext_descriptor_entries_next(d, pos)) + + + + + + + + + + +/******************************** PRIVATE CODE ********************************/ +static inline struct dvb_vbi_teletext_entry* + dvb_vbi_teletext_descriptor_entries_first(struct dvb_vbi_teletext_descriptor *d) +{ + if (d->d.len == 0) + return NULL; + + return (struct dvb_vbi_teletext_entry *) + ((uint8_t*) d + sizeof(struct dvb_vbi_teletext_descriptor)); +} + +static inline struct dvb_vbi_teletext_entry* + dvb_vbi_teletext_descriptor_entries_next(struct dvb_vbi_teletext_descriptor *d, + struct dvb_vbi_teletext_entry *pos) +{ + uint8_t *end = (uint8_t*) d + 2 + d->d.len; + uint8_t *next = (uint8_t *) pos + sizeof(struct dvb_vbi_teletext_entry); + + if (next >= end) + return NULL; + + return (struct dvb_vbi_teletext_entry *) next; +} + +#ifdef __cplusplus +} +#endif + +#endif |