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

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author	Jonathan McCrohan <jmccrohan@gmail.com>	2013-11-04 23:06:50 +0000
committer	Jonathan McCrohan <jmccrohan@gmail.com>	2013-11-04 23:06:50 +0000
commit	01e07222f7b63defc4ebb4aec3c485e25af017e9 (patch)
tree	5a50f7cc5c7e785c4a0cc1d68a5f36da61514999 /dvb-t/sk-Medzev
parent	4532828bb8ad8e0075195947944d2a284a2a7ab0 (diff)
download	dtv-scan-tables-01e07222f7b63defc4ebb4aec3c485e25af017e9.tar.gz

Imported Upstream version 0+git20131101.75f3b39upstream/0+git20131101.75f3b39

Diffstat (limited to 'dvb-t/sk-Medzev')

0 files changed, 0 insertions, 0 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_ATSC_CVCT_SECTION_H #define _UCSI_ATSC_CVCT_SECTION_H 1 #ifdef __cplusplus extern "C" { #endif #include <libucsi/atsc/section.h> /** * atsc_cvct_section structure. */ struct atsc_cvct_section { struct atsc_section_psip head; uint8_t num_channels_in_section; /* struct atsc_cvct_channel channels[] */ /* struct atsc_cvct_channel_part2 part2 */ } __ucsi_packed; struct atsc_cvct_channel { uint16_t short_name[7]; // UTF-16 network ordered EBIT4(uint32_t reserved : 4; , uint32_t major_channel_number :10; , uint32_t minor_channel_number :10; , uint32_t modulation_mode : 8; ); uint32_t carrier_frequency; uint16_t channel_TSID; uint16_t program_number; EBIT8(uint16_t ETM_location : 2; , uint16_t access_controlled : 1; , uint16_t hidden : 1; , uint16_t path_select : 1; , uint16_t out_of_band : 1; , uint16_t hide_guide : 1; , uint16_t reserved2 : 3; , uint16_t service_type : 6; ); uint16_t source_id; EBIT2(uint16_t reserved3 : 6; , uint16_t descriptors_length :10; ); /* struct descriptor descriptors[] */ } __ucsi_packed; struct atsc_cvct_section_part2 { EBIT2(uint16_t reserved : 6; , uint16_t descriptors_length :10; ); /* struct descriptor descriptors[] */ } __ucsi_packed; static inline struct atsc_cvct_channel *atsc_cvct_section_channels_first(struct atsc_cvct_section *cvct); static inline struct atsc_cvct_channel * atsc_cvct_section_channels_next(struct atsc_cvct_section *cvct, struct atsc_cvct_channel *pos, int idx); /** * Process a atsc_cvct_section. * * @param section Pointer to anj atsc_section_psip structure. * @return atsc_cvct_section pointer, or NULL on error. */ struct atsc_cvct_section *atsc_cvct_section_codec(struct atsc_section_psip *section); /** * Accessor for the transport_stream_id field of a CVCT. * * @param cvdt CVDT pointer. * @return The transport_stream_id. */ static inline uint16_t atsc_cvct_section_transport_stream_id(struct atsc_cvct_section *cvct) { return cvct->head.ext_head.table_id_ext; } /** * Iterator for the tables field in an atsc_cvct_section. * * @param mgt atsc_cvct_section pointer. * @param pos Variable containing a pointer to the current atsc_cvct_channel. * @param idx Integer used to count which table we in. */ #define atsc_cvct_section_channels_for_each(mgt, pos, idx) \ for ((pos) = atsc_cvct_section_channels_first(mgt), idx=0; \ (pos); \ (pos) = atsc_cvct_section_channels_next(mgt, pos, ++idx)) /** * Iterator for the descriptors field in a atsc_cvct_channel structure. * * @param table atsc_cvct_channel pointer. * @param pos Variable containing a pointer to the current descriptor. */ #define atsc_cvct_channel_descriptors_for_each(table, pos) \ for ((pos) = atsc_cvct_channel_descriptors_first(table); \ (pos); \ (pos) = atsc_cvct_channel_descriptors_next(table, pos)) /** * Accessor for the second part of an atsc_cvct_section. * * @param mgt atsc_cvct_section pointer. * @return atsc_cvct_section_part2 pointer. */ static inline struct atsc_cvct_section_part2 * atsc_cvct_section_part2(struct atsc_cvct_section *mgt) { int pos = sizeof(struct atsc_cvct_section); struct atsc_cvct_channel *cur_table; int idx; atsc_cvct_section_channels_for_each(mgt, cur_table, idx) { pos += sizeof(struct atsc_cvct_channel); pos += cur_table->descriptors_length; } return (struct atsc_cvct_section_part2 *) (((uint8_t*) mgt) + pos); } /** * Iterator for the descriptors field in a atsc_cvct_section structure. * * @param part2 atsc_cvct_section_part2 pointer. * @param pos Variable containing a pointer to the current descriptor. */ #define atsc_cvct_section_part2_descriptors_for_each(part2, pos) \ for ((pos) = atsc_cvct_section_part2_descriptors_first(part2); \ (pos); \ (pos) = atsc_cvct_section_part2_descriptors_next(part2, pos)) /******************************** PRIVATE CODE ********************************/ static inline struct atsc_cvct_channel * atsc_cvct_section_channels_first(struct atsc_cvct_section *cvct) { size_t pos = sizeof(struct atsc_cvct_section); if (cvct->num_channels_in_section == 0) return NULL; return (struct atsc_cvct_channel*) (((uint8_t *) cvct) + pos); } static inline struct atsc_cvct_channel * atsc_cvct_section_channels_next(struct atsc_cvct_section *cvct, struct atsc_cvct_channel *pos, int idx) { if (idx >= cvct->num_channels_in_section) return NULL; return (struct atsc_cvct_channel *) (((uint8_t*) pos) + sizeof(struct atsc_cvct_channel) + pos->descriptors_length); } static inline struct descriptor * atsc_cvct_channel_descriptors_first(struct atsc_cvct_channel *table) { size_t pos = sizeof(struct atsc_cvct_channel); if (table->descriptors_length == 0) return NULL; return (struct descriptor*) (((uint8_t *) table) + pos); } static inline struct descriptor * atsc_cvct_channel_descriptors_next(struct atsc_cvct_channel *table, struct descriptor *pos) { return next_descriptor((uint8_t*) table + sizeof(struct atsc_cvct_channel), table->descriptors_length, pos); } static inline struct descriptor * atsc_cvct_section_part2_descriptors_first(struct atsc_cvct_section_part2 *part2) { size_t pos = sizeof(struct atsc_cvct_section_part2); if (part2->descriptors_length == 0) return NULL; return (struct descriptor*) (((uint8_t *) part2) + pos); } static inline struct descriptor * atsc_cvct_section_part2_descriptors_next(struct atsc_cvct_section_part2 *part2, struct descriptor *pos) { return next_descriptor((uint8_t*) part2 + sizeof(struct atsc_cvct_section_part2), part2->descriptors_length, pos); } #ifdef __cplusplus } #endif #endif


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