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| author | Michael Niedermayer <michaelni@gmx.at> | 2013-10-17 13:39:28 +0200 |
|---|---|---|
| committer | Michael Niedermayer <michaelni@gmx.at> | 2013-10-17 14:02:43 +0200 |
| commit | d0a3bc13025baab8d48cbcf4c698daf2f0c44adc (patch) | |
| tree | ab94119233141dd2ebd8e5d34fbbf4372576751f /libswscale/yuv2rgb.c | |
| parent | 2db65472376ce9abdf39ea31eb169278d77a8ac9 (diff) | |
| download | ffmpeg-d0a3bc13025baab8d48cbcf4c698daf2f0c44adc.tar.gz | |
swscale/yuv2rgb: clip cy, avoid division by 0 with 0 contrast
Found-by: durandal_1707
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
Diffstat (limited to 'libswscale/yuv2rgb.c')
| -rw-r--r-- | libswscale/yuv2rgb.c | 8 |
1 files changed, 4 insertions, 4 deletions
diff --git a/libswscale/yuv2rgb.c b/libswscale/yuv2rgb.c index c0263cdfb5..77c56a9772 100644 --- a/libswscale/yuv2rgb.c +++ b/libswscale/yuv2rgb.c @@ -768,10 +768,10 @@ av_cold int ff_yuv2rgb_c_init_tables(SwsContext *c, const int inv_table[4], c->yuv2rgb_u2b_coeff = (int16_t)roundToInt16(cbu << 13); //scale coefficients by cy - crv = ((crv << 16) + 0x8000) / cy; - cbu = ((cbu << 16) + 0x8000) / cy; - cgu = ((cgu << 16) + 0x8000) / cy; - cgv = ((cgv << 16) + 0x8000) / cy; + crv = ((crv << 16) + 0x8000) / FFMAX(cy, 1); + cbu = ((cbu << 16) + 0x8000) / FFMAX(cy, 1); + cgu = ((cgu << 16) + 0x8000) / FFMAX(cy, 1); + cgv = ((cgv << 16) + 0x8000) / FFMAX(cy, 1); av_freep(&c->yuvTable); |