dtv-scan-tables.git - dtv-scan-tables Debian packaging

diff options

Diffstat (limited to 'dvb-t/se-Bankeryd')

-rw-r--r--

1 files changed, 26 insertions, 16 deletions

/* * 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>


context:
space:
mode: