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| author | Vittorio Giovara <vittorio.giovara@gmail.com> | 2014-08-01 19:13:55 +0100 |
|---|---|---|
| committer | Vittorio Giovara <vittorio.giovara@gmail.com> | 2014-08-04 12:57:38 +0100 |
| commit | 2257165bff243534982f4ddabae4e65e2a35f2ab (patch) | |
| tree | 2a773576427ef3f72161879a7da27f529ca3195f /libavcodec | |
| parent | f84a1b597c29dc035b8d5529ef88c2d7ff057820 (diff) | |
| download | ffmpeg-2257165bff243534982f4ddabae4e65e2a35f2ab.tar.gz | |
png: disable broken MMX/SIMD code for bpp <= 2
The decoder was producing different results when ASM was disabled.
Based on a long debug session with Kostya.
Diffstat (limited to 'libavcodec')
| -rw-r--r-- | libavcodec/pngdec.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/libavcodec/pngdec.c b/libavcodec/pngdec.c index 7bc2ad4847..0c4c91a612 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; |