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avcodec/mpegvideo_enc: init chroma matrix for mjpeg

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Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
This commit is contained in:
Michael Niedermayer 2014-01-11 21:38:11 +01:00
parent 859d74040e
commit b8ff951ce0
1 changed files with 4 additions and 0 deletions
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4
libavcodec/mpegvideo_enc.c
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@ -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){