Fix alpha position error for edge blocks of odd-dimensioned frames
---
libavcodec/s3tc.c | 4 +++-
1 file changed, 3 insertions(+), 1 deletion(-)
diff --git a/libavcodec/s3tc.c b/libavcodec/s3tc.c
index 9886b1d..a422874 100644
--- a/libavcodec/s3tc.c
+++ b/libavcodec/s3tc.c
@@ -71,8 +71,10 @@ static inline void dxt1_decode_pixels(GetByteContext *gb,
uint32_t *d,
pixels >>= 2;
alpha >>= 4;
}
- for (; x<4; x++)
+ for (; x<4; x++) {
pixels >>= 2;
+ alpha >>= 4;
+ }
d += qstride;
}
}
--
2.3.2 (Apple Git-55)
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