- return ff_start_frame(link->dst->outputs[0], outpicref);
-}
-
-static int draw_slice(AVFilterLink *link, int y, int h, int slice_dir)
-{
- AVFilterContext *ctx = link->dst;
-
- return ff_draw_slice(ctx->outputs[0], link->h - (y+h), h, -1 * slice_dir);