Commit 5f73fbdc authored by Georgi Chorbadzhiyski's avatar Georgi Chorbadzhiyski

mpeg/psi: Add support for descriptor 0x10 (Smoothing buffer).

parent 04ed0fcd
/*****************************************************************************
* desc_10.h: ISO/IEC 13818-1 Descriptor 0x10 (Smoothing buffer 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:
* - ISO/IEC 13818-1:2007(E) (MPEG-2 Systems)
*/
#ifndef __BITSTREAM_MPEG_DESC_10_H__
#define __BITSTREAM_MPEG_DESC_10_H__
#include <bitstream/common.h>
#include <bitstream/mpeg/psi/descriptors.h>
#ifdef __cplusplus
extern "C"
{
#endif
/*****************************************************************************
* Descriptor 0x10: Smoothing buffer descriptor
*****************************************************************************/
#define DESC10_HEADER_SIZE (DESC_HEADER_SIZE + 6)
static inline void desc10_init(uint8_t *p_desc)
{
desc_set_tag(p_desc, 0x10);
desc_set_length(p_desc, DESC10_HEADER_SIZE - DESC_HEADER_SIZE);
}
static inline uint32_t desc10_get_sb_leak_rate(const uint8_t *p_desc)
{
return ((p_desc[2] &~ 0xc0) << 16) | (p_desc[3] << 8) | p_desc[4]; // 11xxxxxx xxxxxxxx xxxxxxxx;
}
static inline void desc10_set_sb_leak_rate(uint8_t *p_desc, uint32_t sb_leak_rate)
{
p_desc[2] = ((sb_leak_rate >> 16) & 0xff) | 0xc0;
p_desc[3] = (sb_leak_rate >> 8) & 0xff;
p_desc[4] = sb_leak_rate & 0xff;
}
static inline uint32_t desc10_get_sb_size(const uint8_t *p_desc)
{
return ((p_desc[5] &~ 0xc0) << 16) | (p_desc[6] << 8) | p_desc[7]; // 11xxxxxx xxxxxxxx xxxxxxxx;
}
static inline void desc10_set_sb_size(uint8_t *p_desc, uint32_t sb_size)
{
p_desc[5] = ((sb_size >> 16) & 0xff) | 0xc0;
p_desc[6] = (sb_size >> 8) & 0xff;
p_desc[7] = sb_size & 0xff;
}
static inline bool desc10_validate(const uint8_t *p_desc)
{
return desc_get_length(p_desc) >= DESC10_HEADER_SIZE - DESC_HEADER_SIZE;
}
static inline void desc10_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, "<SMOOTHING_BUFFER_DESC sb_leak_rate=\"%u\" sb_size=\"%u\"/>",
desc10_get_sb_leak_rate(p_desc), desc10_get_sb_size(p_desc));
break;
default:
pf_print(opaque, " - desc 10 smoothing_buffer sb_leak_rate=%u sb_size=%u",
desc10_get_sb_leak_rate(p_desc), desc10_get_sb_size(p_desc));
}
}
#ifdef __cplusplus
}
#endif
#endif
......@@ -48,5 +48,6 @@
#include <bitstream/mpeg/psi/desc_0d.h>
#include <bitstream/mpeg/psi/desc_0e.h>
#include <bitstream/mpeg/psi/desc_0f.h>
#include <bitstream/mpeg/psi/desc_10.h>
#endif
......@@ -114,6 +114,7 @@ static inline void descl_print(uint8_t *p_descl, uint16_t i_length,
CASE_DESC(0d)
CASE_DESC(0e)
CASE_DESC(0f)
CASE_DESC(10)
CASE_DESC_ICONV(40)
CASE_DESC(41)
CASE_DESC(43)
......
Markdown is supported
0% or
You are about to add 0 people to the discussion. Proceed with caution.
Finish editing this message first!
Please register or to comment