/usr/include/bitstream/dvb/si/tdt.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.
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* tdt.h: ETSI EN 300 468 Time and Date Table (TDT)
*****************************************************************************
* Copyright (C) 2009-2010 VideoLAN
*
* Authors: Christophe Massiot <massiot@via.ecp.fr>
*
* 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_TDT_H__
#define __BITSTREAM_DVB_TDT_H__
#include <bitstream/common.h>
#include <bitstream/mpeg/psi/psi.h>
#ifdef __cplusplus
extern "C"
{
#endif
/*****************************************************************************
* Time and Date Table
*****************************************************************************/
#define TDT_PID 0x14
#define TDT_TABLE_ID 0x70
#define TDT_HEADER_SIZE (PSI_HEADER_SIZE + 5)
static inline void tdt_init(uint8_t *p_tdt)
{
psi_init(p_tdt, false);
psi_set_tableid(p_tdt, TDT_TABLE_ID);
psi_set_length(p_tdt, TDT_HEADER_SIZE - PSI_HEADER_SIZE);
}
static inline void tdt_set_utc(uint8_t *p_tdt, uint64_t i_utc)
{
p_tdt[3] = (i_utc >> 32) & 0xff;
p_tdt[4] = (i_utc >> 24) & 0xff;
p_tdt[5] = (i_utc >> 16) & 0xff;
p_tdt[6] = (i_utc >> 8) & 0xff;
p_tdt[7] = i_utc & 0xff;
}
static inline uint64_t tdt_get_utc(const uint8_t *p_tdt)
{
return (uint64_t)(((uint64_t)p_tdt[3] << 32) | ((uint64_t)p_tdt[4] << 24) |
((uint64_t)p_tdt[5] << 16) | ((uint64_t)p_tdt[6] << 8) | p_tdt[7]);
}
static inline bool tdt_validate(const uint8_t *p_tdt)
{
uint16_t i_section_size = psi_get_length(p_tdt) + PSI_HEADER_SIZE;
uint8_t i_tid = psi_get_tableid(p_tdt);
if (psi_get_syntax(p_tdt) || i_tid != TDT_TABLE_ID
|| i_section_size < TDT_HEADER_SIZE)
return false;
return true;
}
#ifdef __cplusplus
}
#endif
#endif
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