s->dst_tff ? "up" : "down");
h = frame->height;
for (plane = 0; plane < 4 && frame->data[plane] && frame->linesize[plane]; plane++) {
- dst_line_step = out->linesize[plane];
- src_line_step = frame->linesize[plane];
+ dst_line_step = out->linesize[plane] * (h > 2);
+ src_line_step = frame->linesize[plane] * (h > 2);
line_size = s->line_size[plane];
dst = out->data[plane];
src = frame->data[plane];