From c9640c17ac78c3ef0c127e4f6393e66ee5d31878 Mon Sep 17 00:00:00 2001 From: Michael Niedermayer Date: Tue, 19 Jan 2010 22:46:58 +0000 Subject: [PATCH] skip outer pixels if possible in h264_loop_filter_luma_c(). overall 3.7% faster loop filtering (C version only) Originally committed as revision 21332 to svn://svn.ffmpeg.org/ffmpeg/trunk --- libavcodec/dsputil.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/libavcodec/dsputil.c b/libavcodec/dsputil.c index 41a63778b..25f501a6e 100644 --- a/libavcodec/dsputil.c +++ b/libavcodec/dsputil.c @@ -2999,10 +2999,12 @@ static inline void h264_loop_filter_luma_c(uint8_t *pix, int xstride, int ystrid int i_delta; if( FFABS( p2 - p0 ) < beta ) { + if(tc0[i]) pix[-2*xstride] = p1 + av_clip( (( p2 + ( ( p0 + q0 + 1 ) >> 1 ) ) >> 1) - p1, -tc0[i], tc0[i] ); tc++; } if( FFABS( q2 - q0 ) < beta ) { + if(tc0[i]) pix[ xstride] = q1 + av_clip( (( q2 + ( ( p0 + q0 + 1 ) >> 1 ) ) >> 1) - q1, -tc0[i], tc0[i] ); tc++; } -- 2.11.0