From: "Ronald S. Bultje" <[email protected]>
The vertical scaler handles 2 rows at a time and thus requires
alignment by 2, or else it'll read invalid memory and result in
corrupt output.
---
libswscale/utils.c | 2 +-
1 files changed, 1 insertions(+), 1 deletions(-)
diff --git a/libswscale/utils.c b/libswscale/utils.c
index 64ac77d..862b273 100644
--- a/libswscale/utils.c
+++ b/libswscale/utils.c
@@ -962,7 +962,7 @@ int sws_init_context(SwsContext *c, SwsFilter *srcFilter,
SwsFilter *dstFilter)
/* precalculate vertical scaler filter coefficients */
{
const int filterAlign=
- (HAVE_MMX && cpu_flags & AV_CPU_FLAG_MMX) && (flags &
SWS_ACCURATE_RND) ? 2 :
+ (HAVE_MMX && cpu_flags & AV_CPU_FLAG_MMX) ? 2 :
(HAVE_ALTIVEC && cpu_flags & AV_CPU_FLAG_ALTIVEC) ? 8 :
1;
--
1.7.6
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