blend_frame       650 libavfilter/vf_blend.c     dst_buf = blend_frame(ctx, top_buf, bottom_buf);
blend_frame       919 libavfilter/vf_blend.c             out = blend_frame(ctx, frame, s->prev_frame);
blend_frame       262 libavfilter/vf_photosensitivity.c             blend_frame(ctx, s->last_frame_av, in, factor);