The decoder was producing different results when ASM was disabled.
Based on a long debug session with Kostya.
---
libavcodec/pngdec.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/libavcodec/pngdec.c b/libavcodec/pngdec.c
index 826edab..fa7f7cc 100644
--- a/libavcodec/pngdec.c
+++ b/libavcodec/pngdec.c
@@ -240,7 +240,7 @@ static void png_filter_row(PNGDSPContext *dsp, 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;
--
1.8.5.2 (Apple Git-48)
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