RepoMirrors
/
ffmpeg
mirror of https://git.ffmpeg.org/ffmpeg.git
1
0
Fork 0
Code Issues Projects Releases Wiki Activity

lavc/codec_desc: add a property for codecs that support field coding 

Multiple places currently use AVCodecContext.ticks_per_frame > 1 to
identify such codecs, which
* requires a codec context
* requires it to be open
This commit is contained in:
Anton Khirnov 2023-05-05 15:17:37 +02:00
parent 78e84c054a
commit 70433abf7f
4 changed files with 22 additions and 5 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

3
doc/APIchanges
View File

@ -2,6 +2,9 @@ The last version increases of all libraries were on 2023-02-09
API changes, most recent first:
2023-05-xx - xxxxxxxxxx - lavc 60.12.100 - codec_desc.h
Add AV_CODEC_PROP_FIELDS.
2023-05-xx - xxxxxxxxxx - lavc 60 - codec.h
Depreate AV_CODEC_CAP_SUBFRAMES without replacement.

16
libavcodec/codec_desc.c
View File

@ -38,14 +38,20 @@ static const AVCodecDescriptor codec_descriptors[] = {
.type = AVMEDIA_TYPE_VIDEO,
.name = "mpeg1video",
.long_name = NULL_IF_CONFIG_SMALL("MPEG-1 video"),
.props = AV_CODEC_PROP_LOSSY | AV_CODEC_PROP_REORDER,
.props = AV_CODEC_PROP_LOSSY | AV_CODEC_PROP_REORDER |
// FIXME this is strigly speaking not true, as MPEG-1 does
// not allow field coding, but our mpeg12 code (decoder and
// parser) can sometimes change codec id at runtime, so
// this is safer
AV_CODEC_PROP_FIELDS,
},
{
.id = AV_CODEC_ID_MPEG2VIDEO,
.type = AVMEDIA_TYPE_VIDEO,
.name = "mpeg2video",
.long_name = NULL_IF_CONFIG_SMALL("MPEG-2 video"),
.props = AV_CODEC_PROP_LOSSY | AV_CODEC_PROP_REORDER,
.props = AV_CODEC_PROP_LOSSY | AV_CODEC_PROP_REORDER |
AV_CODEC_PROP_FIELDS,
.profiles = NULL_IF_CONFIG_SMALL(ff_mpeg2_video_profiles),
},
{
@ -225,7 +231,8 @@ static const AVCodecDescriptor codec_descriptors[] = {
.type = AVMEDIA_TYPE_VIDEO,
.name = "h264",
.long_name = NULL_IF_CONFIG_SMALL("H.264 / AVC / MPEG-4 AVC / MPEG-4 part 10"),
.props = AV_CODEC_PROP_LOSSY | AV_CODEC_PROP_LOSSLESS | AV_CODEC_PROP_REORDER,
.props = AV_CODEC_PROP_LOSSY | AV_CODEC_PROP_LOSSLESS |
AV_CODEC_PROP_REORDER | AV_CODEC_PROP_FIELDS,
.profiles = NULL_IF_CONFIG_SMALL(ff_h264_profiles),
},
{
@ -529,7 +536,8 @@ static const AVCodecDescriptor codec_descriptors[] = {
.type = AVMEDIA_TYPE_VIDEO,
.name = "vc1",
.long_name = NULL_IF_CONFIG_SMALL("SMPTE VC-1"),
.props = AV_CODEC_PROP_LOSSY | AV_CODEC_PROP_REORDER,
.props = AV_CODEC_PROP_LOSSY | AV_CODEC_PROP_REORDER |
AV_CODEC_PROP_FIELDS,
.profiles = NULL_IF_CONFIG_SMALL(ff_vc1_profiles),
},
{

6
libavcodec/codec_desc.h
View File

@ -90,6 +90,12 @@ typedef struct AVCodecDescriptor {
* equal.
*/
#define AV_CODEC_PROP_REORDER (1 << 3)
/**
* Video codec supports separate coding of fields in interlaced frames.
*/
#define AV_CODEC_PROP_FIELDS (1 << 4)
/**
* Subtitle codec is bitmap based
* Decoded AVSubtitle data can be read from the AVSubtitleRect->pict field.

2
libavcodec/version.h
View File

@ -29,7 +29,7 @@
#include "version_major.h"
#define LIBAVCODEC_VERSION_MINOR 11
#define LIBAVCODEC_VERSION_MINOR 12
#define LIBAVCODEC_VERSION_MICRO 100
#define LIBAVCODEC_VERSION_INT AV_VERSION_INT(LIBAVCODEC_VERSION_MAJOR, \