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reorder if() so that the condition can be simplified 

saves another 4 cpu cycles

Originally committed as revision 9857 to svn://svn.ffmpeg.org/ffmpeg/trunk
This commit is contained in:
Michael Niedermayer 2007-08-01 19:37:28 +00:00
parent 0ac6b5a301
commit 09d1bee89e
1 changed files with 4 additions and 4 deletions
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8
libavcodec/mpeg12.c
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@ -502,14 +502,14 @@ static int mpeg_decode_mb(MpegEncContext *s,
}
cbp = get_vlc2(&s->gb, mb_pat_vlc.table, MB_PAT_VLC_BITS, 1);
if (cbp < 0 || ((cbp == 0) && (s->chroma_format < 2)) ){
av_log(s->avctx, AV_LOG_ERROR, "invalid cbp at %d %d\n", s->mb_x, s->mb_y);
return -1;
}
if(mb_block_count > 6){
cbp<<= mb_block_count-6;
cbp |= get_bits(&s->gb, mb_block_count-6);
}
if (cbp <= 0){
av_log(s->avctx, AV_LOG_ERROR, "invalid cbp at %d %d\n", s->mb_x, s->mb_y);
return -1;
}
#ifdef HAVE_XVMC
//on 1 we memcpy blocks in xvmcvideo