/usr/include/bitstream/dvb/si/desc_61.h is in libbitstream-dev 1.1-1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
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* desc_61.h: ETSI EN 300 468 Descriptor 0x61: Short smoothing buffer
*****************************************************************************
* 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_61_H__
#define __BITSTREAM_DVB_DESC_61_H__
#include <bitstream/common.h>
#include <bitstream/mpeg/psi/descriptors.h>
#ifdef __cplusplus
extern "C"
{
#endif
/*****************************************************************************
* Descriptor 0x61: Short smoothing buffer descriptor
*****************************************************************************/
#define DESC61_HEADER_SIZE (DESC_HEADER_SIZE + 1)
static inline void desc61_init(uint8_t *p_desc)
{
desc_set_tag(p_desc, 0x61);
desc_set_length(p_desc, DESC61_HEADER_SIZE - DESC_HEADER_SIZE);
}
static inline uint8_t desc61_get_sb_size(const uint8_t *p_desc)
{
return p_desc[2] >> 6;
}
static inline void desc61_set_sb_size(uint8_t *p_desc, uint8_t i_sb_size)
{
p_desc[2] = (p_desc[2] & 0x3f) | (i_sb_size << 6);
}
static inline uint8_t desc61_get_sb_leak_rate(const uint8_t *p_desc)
{
return p_desc[2] & 0x3f;
}
static inline void desc61_set_sb_leak_rate(uint8_t *p_desc, uint8_t i_sb_leak_rate)
{
p_desc[2] = (p_desc[2] & 0xc0) | (i_sb_leak_rate & 0x3f);
}
static inline bool desc61_validate(const uint8_t *p_desc)
{
return desc_get_length(p_desc) >= DESC61_HEADER_SIZE - DESC_HEADER_SIZE;
}
static inline void desc61_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, "<SHORT_SMOOTHING_BUFFER_DESC sb_size=\"%u\" sb_leak_rate=\"%u\"/>",
desc61_get_sb_size(p_desc),
desc61_get_sb_leak_rate(p_desc)
);
break;
default:
pf_print(opaque, " - desc 61 short_smoothing_buffer sb_size=%u sb_leak_rate=%u",
desc61_get_sb_size(p_desc),
desc61_get_sb_leak_rate(p_desc)
);
}
}
#ifdef __cplusplus
}
#endif
#endif
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