[FFmpeg-cvslog] avcodec/mpegvideo_enc: init chroma matrix for mjpeg
Michael Niedermayer
git at videolan.org
Sat Jan 11 21:53:19 CET 2014
ffmpeg | branch: master | Michael Niedermayer <michaelni at gmx.at> | Sat Jan 11 21:38:11 2014 +0100| [b8ff951ce03f2ec2f362394add0e1e96a5add385] | committer: Michael Niedermayer
avcodec/mpegvideo_enc: init chroma matrix for mjpeg
Signed-off-by: Michael Niedermayer <michaelni at gmx.at>
> http://git.videolan.org/gitweb.cgi/ffmpeg.git/?a=commit;h=b8ff951ce03f2ec2f362394add0e1e96a5add385
---
libavcodec/mpegvideo_enc.c | 4 ++++
1 file changed, 4 insertions(+)
diff --git a/libavcodec/mpegvideo_enc.c b/libavcodec/mpegvideo_enc.c
index 105f2cd..c1fe13a 100644
--- a/libavcodec/mpegvideo_enc.c
+++ b/libavcodec/mpegvideo_enc.c
@@ -3504,13 +3504,17 @@ static int encode_picture(MpegEncContext *s, int picture_number)
for(i=1;i<64;i++){
int j= s->dsp.idct_permutation[i];
+ s->chroma_intra_matrix[j] =
s->intra_matrix[j] = av_clip_uint8((ff_mpeg1_default_intra_matrix[i] * s->qscale) >> 3);
}
s->y_dc_scale_table=
s->c_dc_scale_table= ff_mpeg2_dc_scale_table[s->intra_dc_precision];
+ s->chroma_intra_matrix[0] =
s->intra_matrix[0] = ff_mpeg2_dc_scale_table[s->intra_dc_precision][8];
ff_convert_matrix(&s->dsp, s->q_intra_matrix, s->q_intra_matrix16,
s->intra_matrix, s->intra_quant_bias, 8, 8, 1);
+ ff_convert_matrix(&s->dsp, s->q_chroma_intra_matrix, s->q_chroma_intra_matrix16,
+ s->chroma_intra_matrix, s->intra_quant_bias, 8, 8, 1);
s->qscale= 8;
}
if(s->codec_id == AV_CODEC_ID_AMV){
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