for (c = 0; c < 3; c++) {
s->min[c].history = s->history_mem + (c*2) * s->history_len;
s->max[c].history = s->history_mem + (c*2+1) * s->history_len;
- s->sblackpt[c] = scale * s->blackpt[c] + (s->blackpt[c] >> (s->depth - 8));
- s->swhitept[c] = scale * s->whitept[c] + (s->whitept[c] >> (s->depth - 8));
+ s->sblackpt[c] = scale * s->blackpt[c] + (s->blackpt[c] & (1 << (s->depth - 8)));
+ s->swhitept[c] = scale * s->whitept[c] + (s->whitept[c] & (1 << (s->depth - 8)));
}
planar = desc->flags & AV_PIX_FMT_FLAG_PLANAR;