From d0a3bc13025baab8d48cbcf4c698daf2f0c44adc Mon Sep 17 00:00:00 2001 From: Michael Niedermayer Date: Thu, 17 Oct 2013 13:39:28 +0200 Subject: swscale/yuv2rgb: clip cy, avoid division by 0 with 0 contrast Found-by: durandal_1707 Signed-off-by: Michael Niedermayer --- libswscale/yuv2rgb.c | 8 ++++---- 1 file changed, 4 insertions(+), 4 deletions(-) (limited to 'libswscale/yuv2rgb.c') 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); -- cgit v1.2.3