static void update_switchable_interp_probs(VP9_COMMON *cm, vp9_writer *w) {
int j;
for (j = 0; j < SWITCHABLE_FILTER_CONTEXTS; ++j)
prob_diff_update(vp9_switchable_interp_tree,
cm->fc.switchable_interp_prob[j],
cm->counts.switchable_interp[j], SWITCHABLE_FILTERS, w);
}
static void update_switchable_interp_probs(VP10_COMMON *cm, vpx_writer *w,
FRAME_COUNTS *counts) {
int j;
for (j = 0; j < SWITCHABLE_FILTER_CONTEXTS; ++j)
prob_diff_update(vp10_switchable_interp_tree,
cm->fc->switchable_interp_prob[j],
counts->switchable_interp[j], SWITCHABLE_FILTERS, w);
}
static size_t write_compressed_header(VP9_COMP *cpi, uint8_t *data) {
VP9_COMMON *const cm = &cpi->common;
MACROBLOCKD *const xd = &cpi->td.mb.e_mbd;
FRAME_CONTEXT *const fc = cm->fc;
FRAME_COUNTS *counts = cpi->td.counts;
vpx_writer header_bc;
vpx_start_encode(&header_bc, data);
if (xd->lossless)
cm->tx_mode = ONLY_4X4;
else
encode_txfm_probs(cm, &header_bc, counts);
update_coef_probs(cpi, &header_bc);
update_skip_probs(cm, &header_bc, counts);
if (!frame_is_intra_only(cm)) {
int i;
for (i = 0; i < INTER_MODE_CONTEXTS; ++i)
prob_diff_update(vp9_inter_mode_tree, cm->fc->inter_mode_probs[i],
counts->inter_mode[i], INTER_MODES, &header_bc);
if (cm->interp_filter == SWITCHABLE)
update_switchable_interp_probs(cm, &header_bc, counts);
for (i = 0; i < INTRA_INTER_CONTEXTS; i++)
vp9_cond_prob_diff_update(&header_bc, &fc->intra_inter_prob[i],
counts->intra_inter[i]);
if (cpi->allow_comp_inter_inter) {
const int use_compound_pred = cm->reference_mode != SINGLE_REFERENCE;
const int use_hybrid_pred = cm->reference_mode == REFERENCE_MODE_SELECT;
vpx_write_bit(&header_bc, use_compound_pred);
if (use_compound_pred) {
vpx_write_bit(&header_bc, use_hybrid_pred);
if (use_hybrid_pred)
for (i = 0; i < COMP_INTER_CONTEXTS; i++)
vp9_cond_prob_diff_update(&header_bc, &fc->comp_inter_prob[i],
counts->comp_inter[i]);
}
}
if (cm->reference_mode != COMPOUND_REFERENCE) {
for (i = 0; i < REF_CONTEXTS; i++) {
vp9_cond_prob_diff_update(&header_bc, &fc->single_ref_prob[i][0],
counts->single_ref[i][0]);
vp9_cond_prob_diff_update(&header_bc, &fc->single_ref_prob[i][1],
counts->single_ref[i][1]);
}
}
if (cm->reference_mode != SINGLE_REFERENCE)
for (i = 0; i < REF_CONTEXTS; i++)
vp9_cond_prob_diff_update(&header_bc, &fc->comp_ref_prob[i],
counts->comp_ref[i]);
for (i = 0; i < BLOCK_SIZE_GROUPS; ++i)
prob_diff_update(vp9_intra_mode_tree, cm->fc->y_mode_prob[i],
counts->y_mode[i], INTRA_MODES, &header_bc);
for (i = 0; i < PARTITION_CONTEXTS; ++i)
prob_diff_update(vp9_partition_tree, fc->partition_prob[i],
counts->partition[i], PARTITION_TYPES, &header_bc);
vp9_write_nmv_probs(cm, cm->allow_high_precision_mv, &header_bc,
&counts->mv);
}
vpx_stop_encode(&header_bc);
assert(header_bc.pos <= 0xffff);
return header_bc.pos;
}
