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new 9288681068 avcodec/x86/vorbisdsp: change cmpleps to cmpltps in inverse
coupling
9288681068 is described below
commit 92886810682b1d417e14ba3af92d2674cf4fc774
Author: Hassan Hany <[email protected]>
AuthorDate: Thu Feb 5 23:14:16 2026 +0200
Commit: michaelni <[email protected]>
CommitDate: Tue May 26 04:46:04 2026 +0000
avcodec/x86/vorbisdsp: change cmpleps to cmpltps in inverse coupling
Changed the comparison from cmpleps to strictly less than
(cmpltps) to strictly follow the Vorbis spec
Fixes https://code.ffmpeg.org/FFmpeg/FFmpeg/issues/21501
---
libavcodec/x86/vorbisdsp.asm | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/libavcodec/x86/vorbisdsp.asm b/libavcodec/x86/vorbisdsp.asm
index 9afe2eb352..815a1b2114 100644
--- a/libavcodec/x86/vorbisdsp.asm
+++ b/libavcodec/x86/vorbisdsp.asm
@@ -41,8 +41,8 @@ align 16
mova m1, [angq+block_sizeq]
xorps m2, m2
xorps m3, m3
- cmpleps m2, m0 ; m <= 0.0
- cmpleps m3, m1 ; a <= 0.0
+ cmpltps m2, m0 ; m < 0.0
+ cmpltps m3, m1 ; a < 0.0
andps m2, m5 ; keep only the sign bit
xorps m1, m2
mova m4, m3
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