int ctb_size_h = (1 << (s->ps.sps->log2_ctb_size)) >> s->ps.sps->hshift[c_idx];
int ctb_size_v = (1 << (s->ps.sps->log2_ctb_size)) >> s->ps.sps->vshift[c_idx];
int width = FFMIN(ctb_size_h, (s->ps.sps->width >> s->ps.sps->hshift[c_idx]) - x0);
int height = FFMIN(ctb_size_v, (s->ps.sps->height >> s->ps.sps->vshift[c_idx]) - y0);
int tab = sao_tab[(FFALIGN(width, 8) >> 3) - 1];
uint8_t *src = &s->frame->data[c_idx][y0 * stride_src + (x0 << s->ps.sps->pixel_shift)];
int ctb_size_h = (1 << (s->ps.sps->log2_ctb_size)) >> s->ps.sps->hshift[c_idx];
int ctb_size_v = (1 << (s->ps.sps->log2_ctb_size)) >> s->ps.sps->vshift[c_idx];
int width = FFMIN(ctb_size_h, (s->ps.sps->width >> s->ps.sps->hshift[c_idx]) - x0);
int height = FFMIN(ctb_size_v, (s->ps.sps->height >> s->ps.sps->vshift[c_idx]) - y0);
int tab = sao_tab[(FFALIGN(width, 8) >> 3) - 1];
uint8_t *src = &s->frame->data[c_idx][y0 * stride_src + (x0 << s->ps.sps->pixel_shift)];