avcodec/x86/h264_weight: handle weight1=128

Fix ticket4596 Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
10 years ago · e100966575
parent 7c9fcdfabd
commit e100966575
1 changed files with 3 additions and 0 deletions
--- a/libavcodec/x86/h264_weight.asm
+++ b/libavcodec/x86/h264_weight.asm
@ -135,8 +135,11 @@ 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