shenmc
/
bitstream
1
0
Fork 0
Code Issues 0 Pull Requests 0 Projects 0 Releases 0 Wiki Activity
Browse Source

mpeg/psi: Add support for descriptor 0x02 (Video stream).

master
Georgi Chorbadzhiyski 14 years ago
parent
2792fb92de
commit
3d089c617a
3 changed files with 256 additions and 0 deletions
Unified View
Diff Options
Show Stats Download Patch File Download Diff File
  1. +254
    -0
      mpeg/psi/desc_02.h
  2. +1
    -0
      mpeg/psi/descs_list.h
  3. +1
    -0
      mpeg/psi/descs_print.h

+ 254
- 0
mpeg/psi/desc_02.h View File

@ -0,0 +1,254 @@
/*****************************************************************************
* desc_02.h: ISO/IEC 13818-1 Descriptor 0x02 (Video stream 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_02_H__
#define __BITSTREAM_MPEG_DESC_02_H__
#include <bitstream/common.h>
#include <bitstream/mpeg/psi/descriptors.h>
#ifdef __cplusplus
extern "C"
{
#endif
/*****************************************************************************
* Descriptor 0x02: Video stream descriptor
*****************************************************************************/
#define DESC02_HEADER_SIZE (DESC_HEADER_SIZE + 1)
static inline void desc02_init(uint8_t *p_desc)
{
desc_set_tag(p_desc, 0x02);
desc_set_length(p_desc, DESC02_HEADER_SIZE - DESC_HEADER_SIZE);
}
static inline bool desc02_get_multiple_frame_rate(const uint8_t *p_desc) {
return (p_desc[2] & 0x80) == 0x80;
}
static inline void desc02_set_multiple_frame_rate(uint8_t *p_desc, bool b_multiple_frame_rate) {
p_desc[2] = b_multiple_frame_rate ? (p_desc[2] | 0x80) : (p_desc[2] &~ 0x80);
}
static inline uint8_t desc02_get_frame_rate_code(const uint8_t *p_desc) {
return (p_desc[2] & 0x78) >> 3; /* 1xxxx111 */
}
static inline void desc02_set_frame_rate_code(uint8_t *p_desc, uint8_t i_frame_rate_code) {
p_desc[2] = (p_desc[2] & 0x87) | (i_frame_rate_code & 0x0f) << 3;
}
static inline const char *desc02_get_frame_rate_txt(const uint8_t frame_rate_code) {
return frame_rate_code == 0 ? "forbidden" :
frame_rate_code == 1 ? "23.976" :
frame_rate_code == 2 ? "24.00" :
frame_rate_code == 3 ? "25.00" :
frame_rate_code == 4 ? "29.97" :
frame_rate_code == 5 ? "30.00" :
frame_rate_code == 6 ? "50.00" :
frame_rate_code == 7 ? "59.94" :
frame_rate_code == 8 ? "60.00" : "reserved";
}
static inline bool desc02_get_mpeg1_only_flag(const uint8_t *p_desc) {
return (p_desc[2] & 0x04) == 0x04;
}
static inline void desc02_set_mpeg1_only_flag(uint8_t *p_desc, bool b_mpeg1_only_flag) {
p_desc[2] = b_mpeg1_only_flag ? (p_desc[2] | 0x04) : (p_desc[2] &~ 0x04);
if (b_mpeg1_only_flag)
desc_set_length(p_desc, DESC02_HEADER_SIZE - DESC_HEADER_SIZE);
else
desc_set_length(p_desc, (DESC02_HEADER_SIZE + 2) - DESC_HEADER_SIZE);
}
static inline bool desc02_get_constraint_parameter(const uint8_t *p_desc) {
return (p_desc[2] & 0x02) == 0x02;
}
static inline void desc02_set_constraint_parameter(uint8_t *p_desc, bool b_constraint_parameter) {
p_desc[2] = b_constraint_parameter ? (p_desc[2] | 0x02) : (p_desc[2] &~ 0x02);
}
static inline bool desc02_get_still_picture(const uint8_t *p_desc) {
return (p_desc[2] & 0x01) == 0x01;
}
static inline void desc02_set_still_picture(uint8_t *p_desc, bool b_still_picture) {
p_desc[2] = b_still_picture ? (p_desc[2] | 0x01) : (p_desc[2] &~ 0x01);
}
static inline uint8_t desc02_get_profile(const uint8_t *p_desc) {
return p_desc[3] >> 4;
}
static inline void desc02_set_profile(uint8_t *p_desc, uint8_t i_profile) {
p_desc[3] = ((i_profile & 0x0f) << 4) | (p_desc[3] & 0x0f);
}
static inline const char *desc02_get_profile_txt(const uint8_t profile) {
return profile == 1 ? "High" :
profile == 2 ? "Spatially Scalable" :
profile == 3 ? "SNR Scalable" :
profile == 4 ? "Main" :
profile == 5 ? "Simple" : "Reserved";
}
static inline uint8_t desc02_get_level(const uint8_t *p_desc) {
return p_desc[3] & 0x0f;
}
static inline void desc02_set_level(uint8_t *p_desc, uint8_t i_level) {
p_desc[3] = (p_desc[3] & 0xf0) | (i_level & 0x0f);
}
static inline const char *desc02_get_level_txt(const uint8_t level) {
return level == 4 ? "High" :
level == 6 ? "High 1440" :
level == 8 ? "Main" :
level == 10 ? "Low" : "Reserved";
}
static inline uint8_t desc02_get_chroma_format(const uint8_t *p_desc) {
return p_desc[4] >> 6;
}
static inline void desc02_set_chroma_format(uint8_t *p_desc, uint8_t i_chroma_format) {
p_desc[4] = (i_chroma_format << 6) | (p_desc[4] & 0x20) | 0x1f;
}
static inline const char *desc02_get_chroma_format_txt(const uint8_t chroma_format) {
return chroma_format == 0 ? "reserved" :
chroma_format == 1 ? "4:2:0" :
chroma_format == 2 ? "4:2:2" :
chroma_format == 3 ? "4:4:4" : "unknown";
}
static inline bool desc02_get_frame_rate_extension(const uint8_t *p_desc) {
return (p_desc[4] & 0x20) == 0x20;
}
static inline void desc02_set_frame_rate_extension(uint8_t *p_desc, bool b_frame_rate_extension) {
p_desc[4] = (b_frame_rate_extension ? (p_desc[4] | 0x20) : (p_desc[4] &~ 0x20)) | 0x1f;
}
static inline bool desc02_validate(const uint8_t *p_desc)
{
if (desc02_get_mpeg1_only_flag(p_desc))
return desc_get_length(p_desc) >= DESC02_HEADER_SIZE - DESC_HEADER_SIZE;
else
return desc_get_length(p_desc) >= (DESC02_HEADER_SIZE + 2) - DESC_HEADER_SIZE;
}
static inline void desc02_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:
if (desc02_get_mpeg1_only_flag(p_desc)) {
pf_print(opaque,
"<VIDEO_STREAM_DESC multiple_frame_rate=\"%u\" frame_rate_code=\"%u\" frame_rate_txt=\"%s\""
" mpeg1_only=\"%u\" constraint_parameter=\"%u\" still_picture=\"%u\"/>",
desc02_get_multiple_frame_rate(p_desc),
desc02_get_frame_rate_code(p_desc),
desc02_get_frame_rate_txt(desc02_get_frame_rate_code(p_desc)),
desc02_get_mpeg1_only_flag(p_desc),
desc02_get_constraint_parameter(p_desc),
desc02_get_still_picture(p_desc)
);
} else {
pf_print(opaque,
"<VIDEO_STREAM_DESC multiple_frame_rate=\"%u\" frame_rate_code=\"%u\" frame_rate_txt=\"%s\""
" mpeg1_only=\"%u\" constraint_parameter=\"%u\" still_picture=\"%u\""
" profile=\"%u\" profile_txt=\"%s\" level=\"%u\" level_txt=\"%s\""
" chroma_format=\"%u\" chroma_format_txt=\"%s\""
" frame_rate_extension=\"%u\"/>",
desc02_get_multiple_frame_rate(p_desc),
desc02_get_frame_rate_code(p_desc),
desc02_get_frame_rate_txt(desc02_get_frame_rate_code(p_desc)),
desc02_get_mpeg1_only_flag(p_desc),
desc02_get_constraint_parameter(p_desc),
desc02_get_still_picture(p_desc),
desc02_get_profile(p_desc),
desc02_get_profile_txt(desc02_get_profile(p_desc)),
desc02_get_level(p_desc),
desc02_get_level_txt(desc02_get_level(p_desc)),
desc02_get_chroma_format(p_desc),
desc02_get_chroma_format_txt(desc02_get_chroma_format(p_desc)),
desc02_get_frame_rate_extension(p_desc)
);
}
break;
default:
if (desc02_get_mpeg1_only_flag(p_desc)) {
pf_print(opaque,
" - desc 02 video_stream multiple_frame_rate=%u frame_rate_code=%u frame_rate_txt=\"%s\""
" mpeg1_only=%u constraint_parameter=%u still_picture=%u",
desc02_get_multiple_frame_rate(p_desc),
desc02_get_frame_rate_code(p_desc),
desc02_get_frame_rate_txt(desc02_get_frame_rate_code(p_desc)),
desc02_get_mpeg1_only_flag(p_desc),
desc02_get_constraint_parameter(p_desc),
desc02_get_still_picture(p_desc)
);
} else {
pf_print(opaque,
" - desc 02 video_stream multiple_frame_rate=%u frame_rate_code=%u frame_rate_txt=\"%s\""
" mpeg1_only=%u constraint_parameter=%u still_picture=%u"
" profile=%u profile_txt=\"%s\" level=%u level_txt=\"%s\""
" chroma_format=%u chroma_format_txt=\"%s\""
" frame_rate_extension=%u",
desc02_get_multiple_frame_rate(p_desc),
desc02_get_frame_rate_code(p_desc),
desc02_get_frame_rate_txt(desc02_get_frame_rate_code(p_desc)),
desc02_get_mpeg1_only_flag(p_desc),
desc02_get_constraint_parameter(p_desc),
desc02_get_still_picture(p_desc),
desc02_get_profile(p_desc),
desc02_get_profile_txt(desc02_get_profile(p_desc)),
desc02_get_level(p_desc),
desc02_get_level_txt(desc02_get_level(p_desc)),
desc02_get_chroma_format(p_desc),
desc02_get_chroma_format_txt(desc02_get_chroma_format(p_desc)),
desc02_get_frame_rate_extension(p_desc)
);
}
}
}
#ifdef __cplusplus
}
#endif
#endif

+ 1
- 0
mpeg/psi/descs_list.h View File

@ -34,6 +34,7 @@
* the needed code in bitstream/mpeg/psi/descs_print.h * the needed code in bitstream/mpeg/psi/descs_print.h
*/ */
#include <bitstream/mpeg/psi/desc_02.h>
#include <bitstream/mpeg/psi/desc_05.h> #include <bitstream/mpeg/psi/desc_05.h>
#include <bitstream/mpeg/psi/desc_09.h> #include <bitstream/mpeg/psi/desc_09.h>
#include <bitstream/mpeg/psi/desc_0a.h> #include <bitstream/mpeg/psi/desc_0a.h>

+ 1
- 0
mpeg/psi/descs_print.h View File

@ -100,6 +100,7 @@ static inline void descl_print(uint8_t *p_descl, uint16_t i_length,
i_print_type); \ i_print_type); \
break; break;
CASE_DESC(02)
CASE_DESC(05) CASE_DESC(05)
CASE_DESC(09) CASE_DESC(09)
CASE_DESC(0a) CASE_DESC(0a)

Write Preview
Loading…
Cancel
Save