diff options
Diffstat (limited to 'libavcodec/texturedsp.c')
| -rw-r--r-- | libavcodec/texturedsp.c | 9 |
1 files changed, 6 insertions, 3 deletions
diff --git a/libavcodec/texturedsp.c b/libavcodec/texturedsp.c index 5fb79937da..721bfc17f5 100644 --- a/libavcodec/texturedsp.c +++ b/libavcodec/texturedsp.c @@ -175,9 +175,12 @@ static av_always_inline void premult2straight(uint8_t *src) int b = src[2]; int a = src[3]; /* unchanged */ - src[0] = (uint8_t) r * a / 255; - src[1] = (uint8_t) g * a / 255; - src[2] = (uint8_t) b * a / 255; + if (a == 0) + return; + + src[0] = (uint8_t) FFMIN(r * 255 / a, 255); + src[1] = (uint8_t) FFMIN(g * 255 / a, 255); + src[2] = (uint8_t) FFMIN(b * 255 / a, 255); } /** |