avcodec/x86/sbrdsp: Fix using uninitialized upper 32bit of noise

Fixes crash Fixes: flicker-1.scout3d21443372922.28.m4a Found-by: Dale Curtis <dalecurtis@google.com> Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
10 years ago · 1b82b934a1
parent b3066be0e4
commit 1b82b934a1
1 changed files with 1 additions and 0 deletions
--- a/libavcodec/x86/sbrdsp.asm
+++ b/libavcodec/x86/sbrdsp.asm
@ -382,6 +382,7 @@ apply_noise_main:
 %else
 %define count m_maxq
 %endif
+    movsxdifnidn    noiseq, noised
    dec    noiseq
    shl    count, 2
 %ifdef PIC