/usr/include/bitstream/mpeg/psi/tsdt.h is in libbitstream-dev 1.0-1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 | /*****************************************************************************
* tsdt.h: ISO/IEC 13818-1 Transport stream descriptor table (TSDT)
*****************************************************************************
* 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:
* - ISO/IEC 13818-1:2007(E) (MPEG-2 Systems)
*/
#ifndef __BITSTREAM_MPEG_TSDT_H__
#define __BITSTREAM_MPEG_TSDT_H__
#include <bitstream/common.h>
#include <bitstream/mpeg/psi/psi.h>
#include <bitstream/mpeg/psi/descriptors.h>
#include <bitstream/mpeg/psi/cat.h>
#ifdef __cplusplus
extern "C"
{
#endif
/*****************************************************************************
* Transport stream descriptor table
*****************************************************************************/
#define TSDT_PID 0x02
#define TSDT_TABLE_ID 0x03
#define TSDT_HEADER_SIZE PSI_HEADER_SIZE_SYNTAX1
static inline void tsdt_init(uint8_t *p_tsdt)
{
psi_init(p_tsdt, true);
psi_set_tableid(p_tsdt, TSDT_TABLE_ID);
p_tsdt[1] &= ~0x40;
psi_set_tableidext(p_tsdt, 0xffff);
psi_set_section(p_tsdt, 0);
psi_set_lastsection(p_tsdt, 0);
}
#define tsdt_set_length cat_set_length
#define tsdt_get_desclength cat_get_desclength
#define tsdt_set_desclength cat_set_desclength
#define tsdt_get_descl cat_get_descl
#define tsdt_get_descl_const cat_get_descl_const
static inline bool tsdt_validate(const uint8_t *p_tsdt)
{
uint16_t i_section_size = psi_get_length(p_tsdt) + PSI_HEADER_SIZE
- PSI_CRC_SIZE;
if (!psi_get_syntax(p_tsdt) || psi_get_section(p_tsdt)
|| psi_get_lastsection(p_tsdt)
|| psi_get_tableid(p_tsdt) != TSDT_TABLE_ID)
return false;
if (i_section_size < TSDT_HEADER_SIZE
|| i_section_size < TSDT_HEADER_SIZE + tsdt_get_desclength(p_tsdt))
return false;
if (!descl_validate(tsdt_get_descl_const(p_tsdt), tsdt_get_desclength(p_tsdt)))
return false;
return true;
}
#define tsdt_table_validate cat_table_validate
#ifdef __cplusplus
}
#endif
#endif
|