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skip outer pixels if possible in h264_loop_filter_luma_c().
author
Michael Niedermayer
<michaelni@gmx.at>
Tue, 19 Jan 2010 22:46:58 +0000
(22:46 +0000)
committer
Michael Niedermayer
<michaelni@gmx.at>
Tue, 19 Jan 2010 22:46:58 +0000
(22:46 +0000)
overall 3.7% faster loop filtering (C version only)
Originally committed as revision 21332 to svn://svn.ffmpeg.org/ffmpeg/trunk
libavcodec/dsputil.c
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diff --git
a/libavcodec/dsputil.c
b/libavcodec/dsputil.c
index
41a6377
..
25f501a
100644
(file)
--- 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++;
}