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/***************************************************************************** |
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* desc_6b.h: ETSI EN 300 468 Descriptor 0x6b: Ancillary data descriptor |
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***************************************************************************** |
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* Copyright (C) 2011 Unix Solutions Ltd. |
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* |
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* Authors: Georgi Chorbadzhiyski <georgi@unixsol.org> |
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* |
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* Permission is hereby granted, free of charge, to any person obtaining |
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* a copy of this software and associated documentation files (the |
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* "Software"), to deal in the Software without restriction, including |
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* without limitation the rights to use, copy, modify, merge, publish, |
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* distribute, sublicense, and/or sell copies of the Software, and to |
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* permit persons to whom the Software is furnished to do so, subject |
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* to the following conditions: |
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* |
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* The above copyright notice and this permission notice shall be |
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* included in all copies or substantial portions of the Software. |
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* |
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, |
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* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF |
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* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. |
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* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY |
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* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, |
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* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE |
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* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. |
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*****************************************************************************/ |
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/* |
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* Normative references: |
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* - ETSI EN 300 468 V1.11.1 (2010-04) (SI in DVB systems) |
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*/ |
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#ifndef __BITSTREAM_DVB_DESC_6B_H__ |
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#define __BITSTREAM_DVB_DESC_6B_H__ |
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#include <bitstream/common.h> |
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#include <bitstream/mpeg/psi/descriptors.h> |
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#ifdef __cplusplus |
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extern "C" |
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{ |
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#endif |
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/***************************************************************************** |
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* Descriptor 0x6b: Ancillary data descriptor |
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*****************************************************************************/ |
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#define DESC6B_HEADER_SIZE (DESC_HEADER_SIZE + 1) |
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static inline void desc6b_init(uint8_t *p_desc) |
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{ |
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desc_set_tag(p_desc, 0x6b); |
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desc_set_length(p_desc, (DESC6B_HEADER_SIZE - DESC_HEADER_SIZE)); |
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p_desc[2] = 0x01; |
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} |
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static inline uint8_t desc6b_get_ancillary_data_indentifier(const uint8_t *p_desc) |
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{ |
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return p_desc[2]; |
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} |
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static inline void desc6b_set_ancillary_data_indentifier(uint8_t *p_desc, uint8_t i_data) |
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{ |
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p_desc[2] = i_data | 0x01; |
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} |
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#define __DEFINE_FLAG(FLAGNAME, bit) \ |
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static inline bool desc6b_get_##FLAGNAME##_flag(const uint8_t *p_desc) \ |
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{ \ |
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return (p_desc[2] & bit) == bit; \ |
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} \ |
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\ |
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static inline void desc6b_set_##FLAGNAME##_flag(uint8_t *p_desc, bool b_##FLAGNAME) \ |
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{ \ |
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p_desc[2] = b_##FLAGNAME ? (p_desc[2] | bit) : (p_desc[2] &~ bit); \ |
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} |
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__DEFINE_FLAG (dvd_video_ancillary_data , 0x80) |
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__DEFINE_FLAG (extended_ancillary_data , 0x40) |
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__DEFINE_FLAG (announcement_switching_data , 0x20) |
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__DEFINE_FLAG (dab_ancillary_data , 0x10) |
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__DEFINE_FLAG (scale_factor_error_check , 0x08) |
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__DEFINE_FLAG (mpeg4_ancillary_data , 0x04) |
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__DEFINE_FLAG (rds_via_uecp , 0x02) |
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#undef __DEFINE_FLAG |
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static inline bool desc6b_validate(const uint8_t *p_desc) |
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{ |
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return desc_get_length(p_desc) >= DESC6B_HEADER_SIZE - DESC_HEADER_SIZE; |
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} |
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static inline void desc6b_print(const uint8_t *p_desc, f_print pf_print, |
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void *opaque, print_type_t i_print_type) |
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{ |
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switch (i_print_type) { |
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case PRINT_XML: |
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pf_print(opaque, |
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"<ANCILLARY_DATA_DESC " |
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" ancillary_data_indentifier=\"0x%02x\"" |
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" dvd_video_ancillary_data_flag=\"%u\"" |
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" extended_ancillary_data_flag=\"%u\"" |
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" announcement_switching_data_flag=\"%u\"" |
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" dab_ancillary_data_flag=\"%u\"" |
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" scale_factor_error_check_flag=\"%u\"" |
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" mpeg4_ancillary_data_flag=\"%u\"" |
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" rds_via_uecp_flag=\"%u\"/>", |
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desc6b_get_ancillary_data_indentifier(p_desc), |
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desc6b_get_dvd_video_ancillary_data_flag(p_desc), |
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desc6b_get_extended_ancillary_data_flag(p_desc), |
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desc6b_get_announcement_switching_data_flag(p_desc), |
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desc6b_get_dab_ancillary_data_flag(p_desc), |
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desc6b_get_scale_factor_error_check_flag(p_desc), |
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desc6b_get_mpeg4_ancillary_data_flag(p_desc), |
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desc6b_get_rds_via_uecp_flag(p_desc) |
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); |
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break; |
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default: |
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pf_print(opaque, |
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" - desc 6b ancillary_data" |
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" ancillary_data_indentifier=0x%02x" |
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" dvd_video_ancillary_data_flag=%u" |
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" extended_ancillary_data_flag=%u" |
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" announcement_switching_data_flag=%u" |
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" dab_ancillary_data_flag=%u" |
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" scale_factor_error_check_flag=%u" |
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" mpeg4_ancillary_data_flag=%u" |
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" rds_via_uecp_flag=%u", |
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desc6b_get_ancillary_data_indentifier(p_desc), |
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desc6b_get_dvd_video_ancillary_data_flag(p_desc), |
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desc6b_get_extended_ancillary_data_flag(p_desc), |
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desc6b_get_announcement_switching_data_flag(p_desc), |
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desc6b_get_dab_ancillary_data_flag(p_desc), |
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desc6b_get_scale_factor_error_check_flag(p_desc), |
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desc6b_get_mpeg4_ancillary_data_flag(p_desc), |
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desc6b_get_rds_via_uecp_flag(p_desc) |
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); |
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} |
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} |
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#ifdef __cplusplus |
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} |
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#endif |
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#endif |