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h264_weight: Fix SSSE3 biweight code with weights of 128
author
Michael Niedermayer
<michaelni@gmx.at>
Fri, 12 Jun 2015 11:58:42 +0000
(12:58 +0100)
committer
Vittorio Giovara
<vittorio.giovara@gmail.com>
Fri, 12 Jun 2015 16:02:48 +0000
(17:02 +0100)
CC: libav-stable@libav.org
Sample-Id: test_bref.mp4
Signed-off-by: Vittorio Giovara <vittorio.giovara@gmail.com>
libavcodec/x86/h264_weight.asm
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diff --git
a/libavcodec/x86/h264_weight.asm
b/libavcodec/x86/h264_weight.asm
index
d1873af
..
9ad26de
100644
(file)
--- a/
libavcodec/x86/h264_weight.asm
+++ b/
libavcodec/x86/h264_weight.asm
@@
-135,6
+135,16
@@
WEIGHT_FUNC_HALF_MM 8, 8
add off_regd, 1
or off_regd, 1
add r4, 1
+ cmp r6d, 128
+ je .nonnormal
+ cmp r5, 128
+ jne .normal
+.nonnormal
+ sar r5, 1
+ sar r6, 1
+ sar off_regd, 1
+ sub r4, 1
+.normal
%if cpuflag(ssse3)
movd m4, r5d
movd m0, r6d