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swscale/yuv2rgb: Use 64bit for brightness computation

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This will not overflow for normal values
Fixes: CID1500280 Unintentional integer overflow

Sponsored-by: Sovereign Tech Fund
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
(cherry picked from commit bfc22f364d)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
This commit is contained in:
Michael Niedermayer
2024-05-21 01:35:08 +02:00
parent 8c3bfd48e6
commit ec2d476bb0
1 changed files with 1 additions and 1 deletions
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libswscale/yuv2rgb.c
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@@ -803,7 +803,7 @@ av_cold int ff_yuv2rgb_c_init_tables(SwsContext *c, const int inv_table[4],
cbu = (cbu * contrast * saturation) >> 32; cbu = (cbu * contrast * saturation) >> 32;
cgu = (cgu * contrast * saturation) >> 32; cgu = (cgu * contrast * saturation) >> 32;
cgv = (cgv * contrast * saturation) >> 32; cgv = (cgv * contrast * saturation) >> 32;
oy -= 256 * brightness; oy -= 256LL * brightness;
c->uOffset = 0x0400040004000400LL; c->uOffset = 0x0400040004000400LL;
c->vOffset = 0x0400040004000400LL; c->vOffset = 0x0400040004000400LL;