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