From bda1c56c474c137957c261dcf9df4fd3232a8b43 Mon Sep 17 00:00:00 2001
From: Michael Niedermayer <michaelni@gmx.at>
Date: Sat, 7 May 2005 16:35:24 +0000
Subject: [PATCH] minor optimization of the h264 loop filter
Originally committed as revision 4198 to svn://svn.ffmpeg.org/ffmpeg/trunk
---
libavcodec/dsputil.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/libavcodec/dsputil.c b/libavcodec/dsputil.c
index 2db9c66318a..a19f79d3160 100644
--- a/libavcodec/dsputil.c
+++ b/libavcodec/dsputil.c
@@ -2667,11 +2667,11 @@ static inline void h264_loop_filter_luma_c(uint8_t *pix, int xstride, int ystrid
int i_delta;
if( ABS( p2 - p0 ) < beta ) {
- pix[-2*xstride] = p1 + clip( ( p2 + ( ( p0 + q0 + 1 ) >> 1 ) - ( p1 << 1 ) ) >> 1, -tc0[i], tc0[i] );
+ pix[-2*xstride] = p1 + clip( (( p2 + ( ( p0 + q0 + 1 ) >> 1 ) ) >> 1) - p1, -tc0[i], tc0[i] );
tc++;
}
if( ABS( q2 - q0 ) < beta ) {
- pix[xstride] = q1 + clip( ( q2 + ( ( p0 + q0 + 1 ) >> 1 ) - ( q1 << 1 ) ) >> 1, -tc0[i], tc0[i] );
+ pix[ xstride] = q1 + clip( (( q2 + ( ( p0 + q0 + 1 ) >> 1 ) ) >> 1) - q1, -tc0[i], tc0[i] );
tc++;
}
--
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