- in[i] = cur_pic->data[i] + ((y>>vsub)+field) * cur_pic->linesize[i];
- out[i] = out_buf->data[i] + field * out_buf->linesize[i];
+ in[i] = FF_PTR_ADD(cur_pic->data[i], ((y>>vsub)+field) * cur_pic->linesize[i]);
+ out[i] = FF_PTR_ADD(out_buf->data[i], field * out_buf->linesize[i]);