They all overflow in various samples that are considered valid input.
---
libavcodec/x86/vp9itxfm.asm | 6 ++++--
1 file changed, 4 insertions(+), 2 deletions(-)
diff --git a/libavcodec/x86/vp9itxfm.asm b/libavcodec/x86/vp9itxfm.asm
index 9cf0d78..a08e1ff 100644
--- a/libavcodec/x86/vp9itxfm.asm
+++ b/libavcodec/x86/vp9itxfm.asm
@@ -868,7 +868,8 @@ VP9_IDCT_IDCT_8x8_ADD_XMM avx, 13
; m6=out0, m5=out1, m4=t2, m3=t3, m7=t6, m0=t7, m2=out6, m1=out7
-%if cpuflag(ssse3)
+ ; unfortunately, the code below overflows in some cases
+%if 0; cpuflag(ssse3)
SUMSUB_BA w, 3, 4, 2
SUMSUB_BA w, 0, 7, 2
pmulhrsw m3, W_11585x2_REG
@@ -1647,7 +1648,8 @@ VP9_IDCT_IDCT_16x16_ADD_XMM avx
VP9_RND_SH_SUMSUB_BA 4, 7, 0, 2, 1, [pd_8192]
PSIGNW m4, [pw_m1] ; m4=out13[w],
m7=t15[w]
-%if cpuflag(ssse3)
+ ; unfortunately, the code below overflows in some cases
+%if 0; cpuflag(ssse3)
SUMSUB_BA w, 7, 6, 1
pmulhrsw m7, [pw_m11585x2] ; m7=out5[w]
pmulhrsw m6, [pw_11585x2] ; m6=out10[w]
--
2.1.2
_______________________________________________
ffmpeg-devel mailing list
ffmpeg-devel@ffmpeg.org
http://ffmpeg.org/mailman/listinfo/ffmpeg-devel
