static av_always_inline int dither_color(uint32_t px, int er, int eg, int eb, int scale, int shift)
{
- return av_clip_uint8((px >> 16 & 0xff) + ((er * scale) >> shift)) << 16
- | av_clip_uint8((px >> 8 & 0xff) + ((eg * scale) >> shift)) << 8
- | av_clip_uint8((px & 0xff) + ((eb * scale) >> shift));
+ return av_clip_uint8((px >> 16 & 0xff) + ((er * scale) / (1<<shift))) << 16
+ | av_clip_uint8((px >> 8 & 0xff) + ((eg * scale) / (1<<shift))) << 8
+ | av_clip_uint8((px & 0xff) + ((eb * scale) / (1<<shift)));
}
static av_always_inline int diff(const uint8_t *c1, const uint8_t *c2)