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Skip chroma handling when there is no coded chroma. 

0.5% overall speedup for the cathedral sample.

Originally committed as revision 16201 to svn://svn.ffmpeg.org/ffmpeg/trunk
This commit is contained in:
Michael Niedermayer 2008-12-18 00:46:54 +00:00
parent 3749076c77
commit 621561cdf3
1 changed files with 1 additions and 1 deletions
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2
libavcodec/h264.c
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@ -2547,7 +2547,7 @@ static av_always_inline void hl_decode_mb_internal(H264Context *h, int simple){
}
}
if(simple || !ENABLE_GRAY || !(s->flags&CODEC_FLAG_GRAY)){
if((simple || !ENABLE_GRAY || !(s->flags&CODEC_FLAG_GRAY)) && (h->cbp&0x30)){
uint8_t *dest[2] = {dest_cb, dest_cr};
if(transform_bypass){
idct_add = idct_dc_add = s->dsp.add_pixels4;