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use qscale_table in adaptive quant

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some PSNR/bitrate improvement for adaptive quant

Originally committed as revision 7346 to svn://svn.ffmpeg.org/ffmpeg/trunk
This commit is contained in:
Michael Niedermayer
2006-12-21 15:45:53 +00:00
parent 2175b80bed
commit d6975eb82b
3 changed files with 9 additions and 8 deletions
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libavcodec/mpegvideo.c
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@@ -4340,6 +4340,7 @@ static av_always_inline void encode_mb_internal(MpegEncContext *s, int motion_x,
update_qscale(s);
if(!(s->flags&CODEC_FLAG_QP_RD)){
s->qscale= s->current_picture_ptr->qscale_table[mb_xy];
s->dquant= s->qscale - last_qp;
if(s->out_format==FMT_H263){