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avcodec: support setting the chroma intra matrix

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Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
This commit is contained in:
Michael Niedermayer 2014-02-10 19:01:41 +01:00
parent 3d20260157
commit cbcfd7da4d
3 changed files with 14 additions and 0 deletions
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11
libavcodec/avcodec.h
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@ -2988,6 +2988,14 @@ typedef struct AVCodecContext {
#define FF_DEBUG_VIS_MV_B_FOR 0x00000002 //visualize forward predicted MVs of B frames
#define FF_DEBUG_VIS_MV_B_BACK 0x00000004 //visualize backward predicted MVs of B frames
#endif
/**
* custom intra quantization matrix
* Code outside libavcodec should access this field using av_codec_g/set_chroma_intra_matrix()
* - encoding: Set by user, can be NULL.
* - decoding: unused.
*/
uint16_t *chroma_intra_matrix;
} AVCodecContext;
AVRational av_codec_get_pkt_timebase (const AVCodecContext *avctx);
@ -3002,6 +3010,9 @@ void av_codec_set_lowres(AVCodecContext *avctx, int val);
int av_codec_get_seek_preroll(const AVCodecContext *avctx);
void av_codec_set_seek_preroll(AVCodecContext *avctx, int val);
uint16_t *av_codec_get_chroma_intra_matrix(const AVCodecContext *avctx);
void av_codec_set_chroma_intra_matrix(AVCodecContext *avctx, uint16_t *val);
/**
* AVProfile.
*/

2
libavcodec/mpegvideo_enc.c
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@ -3511,6 +3511,8 @@ static int encode_picture(MpegEncContext *s, int picture_number)
chroma_matrix =
luma_matrix = s->avctx->intra_matrix;
}
if (s->avctx->chroma_intra_matrix)
chroma_matrix = s->avctx->chroma_intra_matrix;
/* for mjpeg, we do include qscale in the matrix */
for(i=1;i<64;i++){

1
libavcodec/utils.c
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@ -1116,6 +1116,7 @@ MAKE_ACCESSORS(AVCodecContext, codec, AVRational, pkt_timebase)
MAKE_ACCESSORS(AVCodecContext, codec, const AVCodecDescriptor *, codec_descriptor)
MAKE_ACCESSORS(AVCodecContext, codec, int, lowres)
MAKE_ACCESSORS(AVCodecContext, codec, int, seek_preroll)
MAKE_ACCESSORS(AVCodecContext, codec, uint16_t*, chroma_intra_matrix)
int av_codec_get_max_lowres(const AVCodec *codec)
{