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144 lines
5.5 KiB
144 lines
5.5 KiB
/*****************************************************************************
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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
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