dst = frame->data[p] + (avctx->height - 1) * frame->linesize[p];
s->llviddsp.add_left_pred(dst, dst, width, 0);
- dst -= stride;
- lefttop = left = dst[0];
- for (int y = 1; y < avctx->height; y++) {
- s->llviddsp.add_median_pred(dst, dst + stride, dst, width, &left, &lefttop);
- lefttop = left = dst[0];
+ if (avctx->height > 1) {
dst -= stride;
+ lefttop = left = dst[0];
+ for (int y = 1; y < avctx->height; y++) {
+ s->llviddsp.add_median_pred(dst, dst + stride, dst, width, &left, &lefttop);
+ lefttop = left = dst[0];
+ dst -= stride;
+ }
}
}