int ret;
av_frame_unref(s->frame1);
+ av_frame_unref(s->frame2);
if ((ret = ff_get_buffer(avctx, s->frame1, 0)) < 0)
return ret;
- av_frame_unref(s->frame2);
if ((ret = ff_get_buffer(avctx, s->frame2, 0)) < 0)
return ret;
if (!s->frame2->data[0] || !s->frame1->data[0])
return AVERROR_INVALIDDATA;
- b1 = s->frame1->data[0] + s->frame1->linesize[0] * (start_y + h) + start_x * s->bpp;
- b2 = s->frame2->data[0] + s->frame2->linesize[0] * (start_y + h) + start_x * s->bpp;
- e2 = s->frame2->data[0] + s->frame2->linesize[0] * (mov_y + h) + mov_x * s->bpp;
+ b1 = s->frame1->data[0] + s->frame1->linesize[0] * (start_y + h - 1) + start_x * s->bpp;
+ b2 = s->frame2->data[0] + s->frame2->linesize[0] * (start_y + h - 1) + start_x * s->bpp;
+ e2 = s->frame2->data[0] + s->frame2->linesize[0] * (mov_y + h - 1) + mov_x * s->bpp;
if (type == 2) {
for (int j = 0; j < h; j++) {