From 812bfd7b4480094e1169f7dfabd5b44e2158379d Mon Sep 17 00:00:00 2001 From: Michael Niedermayer Date: Sat, 13 Feb 2010 02:47:41 +0000 Subject: [PATCH] Special case for spatial direct MV predictor being 0. a little less than 200 cpu cycles faster with the cathedral sample. Originally committed as revision 21785 to svn://svn.ffmpeg.org/ffmpeg/trunk --- libavcodec/h264_direct.c | 8 +++++++- 1 file changed, 7 insertions(+), 1 deletion(-) diff --git a/libavcodec/h264_direct.c b/libavcodec/h264_direct.c index 96ee7c5cbe..8f297c4c5c 100644 --- a/libavcodec/h264_direct.c +++ b/libavcodec/h264_direct.c @@ -265,7 +265,13 @@ single_col: sub_mb_type |= MB_TYPE_L0L1; } - if(IS_INTERLACED(*mb_type) != IS_INTERLACED(mb_type_col[0])){ + if(!is_b8x8 && (mv[0]|mv[1]) == 0){ + fill_rectangle(&h->ref_cache[0][scan8[0]], 4, 4, 8, (uint8_t)ref[0], 1); + fill_rectangle(&h->ref_cache[1][scan8[0]], 4, 4, 8, (uint8_t)ref[1], 1); + fill_rectangle(&h->mv_cache[0][scan8[0]], 4, 4, 8, 0, 4); + fill_rectangle(&h->mv_cache[1][scan8[0]], 4, 4, 8, 0, 4); + *mb_type= (*mb_type & ~(MB_TYPE_8x8|MB_TYPE_16x8|MB_TYPE_8x16|MB_TYPE_P1L0|MB_TYPE_P1L1))|MB_TYPE_16x16|MB_TYPE_DIRECT2; + }else if(IS_INTERLACED(*mb_type) != IS_INTERLACED(mb_type_col[0])){ int n=0; for(i8=0; i8<4; i8++){ int x8 = i8&1;