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bitstream/atsc/si/desc_cc.h

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/*****************************************************************************
* desc_cc.h: ATSC A/52 Descriptor 0xcc: Enhanced AC-3 descriptor
*****************************************************************************
* Copyright (C) 2019 OpenHeadend
*
* Authors: Arnaud de Turckheim <adeturckheim@openheadend.tv>
*
* 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.
*****************************************************************************/
#ifndef __BITSTREAM_ATSC_DESC_CC_H__
#define __BITSTREAM_ATSC_DESC_CC_H__
#include <bitstream/common.h>
#include <bitstream/mpeg/psi/descriptors.h>
#ifdef __cplusplus
extern "C"
{
#endif
#define DESCCC_HEADER_SIZE (DESC_HEADER_SIZE + 2)
static inline void desccc_init(uint8_t *p_desc)
{
desc_set_tag(p_desc, 0xcc);
desc_set_length(p_desc, DESCCC_HEADER_SIZE - DESC_HEADER_SIZE);
p_desc[2] = 0x80;
p_desc[3] = 0xc0;
}
static inline void desccc_clear_flags(uint8_t *p_desc)
{
p_desc[2] = 0x80;
p_desc[3] = 0xc0;
}
static inline void desccc_set_bsid_flag(uint8_t *p_desc, uint8_t bsid_flag)
{
p_desc[2] = (p_desc[2] & 0xbf) | ((bsid_flag & 0x1) << 6);
}
static inline uint8_t desccc_get_bsid_flag(const uint8_t *p_desc)
{
return (p_desc[2] & 0x40) >> 6;
}
static inline void desccc_set_mainid_flag(uint8_t *p_desc, uint8_t mainid_flag)
{
p_desc[2] = (p_desc[2] & 0xdf) | ((mainid_flag & 0x1) << 5);
}
static inline uint8_t desccc_get_mainid_flag(const uint8_t *p_desc)
{
return (p_desc[2] & 0x20) >> 5;
}
static inline void desccc_set_asvc_flag(uint8_t *p_desc, uint8_t asvc_flag)
{
p_desc[2] = (p_desc[2] & 0xef) | ((asvc_flag & 0x1) << 4);
}
static inline uint8_t desccc_get_asvc_flag(const uint8_t *p_desc)
{
return (p_desc[2] & 0x10) >> 4;
}
static inline void desccc_set_mixinfoexists(uint8_t *p_desc,
uint8_t mixinfoexists)
{
p_desc[2] = (p_desc[2] & 0xf7) | ((mixinfoexists & 0x1) << 3);
}
static inline uint8_t desccc_get_mixinfoexists(const uint8_t *p_desc)
{
return (p_desc[2] & 0x08) >> 3;
}
static inline void desccc_set_substream1_flag(uint8_t *p_desc,
uint8_t substream1_flag)
{
p_desc[2] = (p_desc[2] & 0xfb) | ((substream1_flag & 0x1) << 2);
}
static inline uint8_t desccc_get_substream1_flag(const uint8_t *p_desc)
{
return (p_desc[2] & 0x04) >> 2;
}
static inline void desccc_set_substream2_flag(uint8_t *p_desc,
uint8_t substream2_flag)
{
p_desc[2] = (p_desc[2] & 0xfd) | ((substream2_flag & 0x1) << 1);
}
static inline uint8_t desccc_get_substream2_flag(const uint8_t *p_desc)
{
return (p_desc[2] & 0x02) >> 1;
}
static inline void desccc_set_substream3_flag(uint8_t *p_desc,
uint8_t substream3_flag)
{
p_desc[2] = (p_desc[2] & 0xfe) | (substream3_flag & 0x1);
}
static inline uint8_t desccc_get_substream3_flag(const uint8_t *p_desc)
{
return p_desc[2] & 0x01;
}
static inline void desccc_set_full_service_flag(uint8_t *p_desc,
uint8_t full_service_flag)
{
p_desc[3] = (p_desc[3] & 0xbf) | ((full_service_flag & 0x01) << 6);
}
static inline uint8_t desccc_get_full_service_flag(const uint8_t *p_desc)
{
return (p_desc[3] & 0x40) >> 6;
}
static inline void desccc_set_audio_service_type(uint8_t *p_desc,
uint8_t audio_service_type)
{
p_desc[3] = (p_desc[3] & 0xc7) | ((audio_service_type & 0x07) << 3);
}
static inline uint8_t desccc_get_audio_service_type(const uint8_t *p_desc)
{
return (p_desc[3] & 0x38) >> 3;
}
static inline void desccc_set_number_of_channels(uint8_t *p_desc,
uint8_t number_of_channels)
{
p_desc[3] = (p_desc[3] & 0xf8) | number_of_channels;
}
static inline uint8_t desccc_get_number_of_channels(const uint8_t *p_desc)
{
return p_desc[3] & 0x07;
}
static inline bool desccc_validate(const uint8_t *p_desc)
{
uint8_t i_size = (DESCCC_HEADER_SIZE - DESC_HEADER_SIZE);
return desc_get_length(p_desc) >= i_size;
}
static inline void desccc_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,
"<EAC3_DESC "
" bsid_flag=\"%u\""
" mainid_flag=\"%u\""
" asvc_flag=\"%u\""
" mixinfoexists=\"%u\""
" substream1_flag=\"%u\""
" substream2_flag=\"%u\""
" substream3_flag=\"%u\""
" full_service_flag=\"%u\""
" audio_service_type=\"0x%02x\""
" number_of_channels=\"0x%02x\""
"/>",
desccc_get_bsid_flag(p_desc) ,
desccc_get_mainid_flag(p_desc) ,
desccc_get_asvc_flag(p_desc) ,
desccc_get_mixinfoexists(p_desc) ,
desccc_get_substream1_flag(p_desc) ,
desccc_get_substream2_flag(p_desc) ,
desccc_get_substream3_flag(p_desc) ,
desccc_get_full_service_flag(p_desc) ,
desccc_get_audio_service_type(p_desc),
desccc_get_number_of_channels(p_desc));
break;
default:
pf_print(opaque,
" - desc cc eac3"
" bsid_flag=\"%u\""
" mainid_flag=\"%u\""
" asvc_flag=\"%u\""
" mixinfoexists=\"%u\""
" substream1_flag=\"%u\""
" substream2_flag=\"%u\""
" substream3_flag=\"%u\""
" full_service_flag=\"%u\""
" audio_service_type=\"0x%02x\""
" number_of_channels=\"0x%02x\"",
desccc_get_bsid_flag(p_desc) ,
desccc_get_mainid_flag(p_desc) ,
desccc_get_asvc_flag(p_desc) ,
desccc_get_mixinfoexists(p_desc) ,
desccc_get_substream1_flag(p_desc) ,
desccc_get_substream2_flag(p_desc) ,
desccc_get_substream3_flag(p_desc) ,
desccc_get_full_service_flag(p_desc) ,
desccc_get_audio_service_type(p_desc),
desccc_get_number_of_channels(p_desc)
);
}
}
#ifdef __cplusplus
}
#endif
#endif