unpremultiply8yuv 430 libavfilter/vf_premultiply.c s->premultiply[1] = s->premultiply[2] = unpremultiply8yuv; unpremultiply8yuv 434 libavfilter/vf_premultiply.c s->premultiply[1] = s->premultiply[2] = unpremultiply8yuv;