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authorMichael Niedermayer <michaelni@gmx.at>2012-01-19 20:50:44 +0100
committerMichael Niedermayer <michaelni@gmx.at>2012-01-22 00:46:19 +0100
commitd1c48025a71e9e190d79115759c10f5807f4d0a7 (patch)
tree6489f3ffeced41ad46e460098c1269c35648f90b
parentfd8a8373aa52e94de14f0583c482c8faa95dd677 (diff)
downloadffmpeg-d1c48025a71e9e190d79115759c10f5807f4d0a7.tar.gz
pngdec: Do not use SIMD paeth prediction for bpp=2
Fixes decoding of basi4a08.png Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
-rw-r--r--libavcodec/pngdec.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/libavcodec/pngdec.c b/libavcodec/pngdec.c
index ec604546b1..e91bca4f97 100644
--- a/libavcodec/pngdec.c
+++ b/libavcodec/pngdec.c
@@ -228,7 +228,7 @@ static void png_filter_row(PNGDecContext *s, uint8_t *dst, int filter_type,
p = last[i];
dst[i] = p + src[i];
}
- if(bpp > 1 && size > 4) {
+ if(bpp > 2 && size > 4) {
// would write off the end of the array if we let it process the last pixel with bpp=3
int w = bpp==4 ? size : size-3;
s->add_paeth_prediction(dst+i, src+i, last+i, w-i, bpp);