- if (scale->slice_y == 0 && slice_dir == -1)
- scale->slice_y = link->dst->outputs[0]->h;
-
- data[0] = cur_pic->data[0] + y * cur_pic->linesize[0];
- data[1] = scale->input_is_pal ?
- cur_pic->data[1] :
- cur_pic->data[1] + (y>>scale->vsub) * cur_pic->linesize[1];
- data[2] = cur_pic->data[2] + (y>>scale->vsub) * cur_pic->linesize[2];
- data[3] = cur_pic->data[3] + y * cur_pic->linesize[3];
-
- out_h = sws_scale(scale->sws, data, cur_pic->linesize, y, h,
- link->dst->outputs[0]->out_buf->data,
- link->dst->outputs[0]->out_buf->linesize);
-
- if (slice_dir == -1)
- scale->slice_y -= out_h;
- ret = ff_draw_slice(link->dst->outputs[0], scale->slice_y, out_h, slice_dir);
- if (slice_dir == 1)
- scale->slice_y += out_h;
- return ret;