From c511f560bfdf884b57a28e578084e6fadcc4b373 Mon Sep 17 00:00:00 2001 From: Dmitry Kovalev Date: Tue, 19 Nov 2013 19:49:56 -0800 Subject: [PATCH] Cleaning up entropy probability update in encoder. Change-Id: I94cb9e3d910dff74bf90906dd96e3a4e06ebdbe6 --- vp9/encoder/vp9_bitstream.c | 77 +++++++++++++++------------------------------ vp9/encoder/vp9_encodemv.c | 27 +++++----------- 2 files changed, 34 insertions(+), 70 deletions(-) diff --git a/vp9/encoder/vp9_bitstream.c b/vp9/encoder/vp9_bitstream.c index efbadba..9bd0123 100644 --- a/vp9/encoder/vp9_bitstream.c +++ b/vp9/encoder/vp9_bitstream.c @@ -163,27 +163,17 @@ void vp9_encode_unsigned_max(struct vp9_write_bit_buffer *wb, vp9_wb_write_literal(wb, data, get_unsigned_bits(max)); } -static void update_mode(vp9_writer *w, int n, vp9_tree tree, - vp9_prob Pcur[/* n-1 */], - unsigned int bct[/* n-1 */][2], - const unsigned int num_events[/* n */]) { - int i = 0; +static void prob_diff_update(const vp9_tree_index *tree, + vp9_prob probs[/*n - 1*/], + const unsigned int counts[/*n - 1*/], + int n, vp9_writer *w) { + int i; + unsigned int branch_ct[32][2]; + assert(n <= 32); - vp9_tree_probs_from_distribution(tree, bct, num_events); + vp9_tree_probs_from_distribution(tree, branch_ct, counts); for (i = 0; i < n - 1; ++i) - vp9_cond_prob_diff_update(w, &Pcur[i], bct[i]); -} - -static void update_mbintra_mode_probs(VP9_COMP* const cpi, - vp9_writer* const bc) { - VP9_COMMON *const cm = &cpi->common; - int j; - unsigned int bct[INTRA_MODES - 1][2]; - - for (j = 0; j < BLOCK_SIZE_GROUPS; j++) - update_mode(bc, INTRA_MODES, vp9_intra_mode_tree, - cm->fc.y_mode_prob[j], bct, - (unsigned int *)cpi->y_mode_count[j]); + vp9_cond_prob_diff_update(w, &probs[i], branch_ct[i]); } static void write_selected_tx_size(const VP9_COMP *cpi, MODE_INFO *m, @@ -227,16 +217,11 @@ static void write_intra_mode(vp9_writer *bc, int m, const vp9_prob *p) { static void update_switchable_interp_probs(VP9_COMP *cpi, vp9_writer *w) { VP9_COMMON *const cm = &cpi->common; - unsigned int branch_ct[SWITCHABLE_FILTERS - 1][2]; - int i, j; - for (j = 0; j < SWITCHABLE_FILTER_CONTEXTS; ++j) { - vp9_tree_probs_from_distribution(vp9_switchable_interp_tree, branch_ct, - cm->counts.switchable_interp[j]); - - for (i = 0; i < SWITCHABLE_FILTERS - 1; ++i) - vp9_cond_prob_diff_update(w, &cm->fc.switchable_interp_prob[j][i], - branch_ct[i]); - } + 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); #ifdef MODE_STATS if (!cpi->dummy_packing) @@ -244,20 +229,6 @@ static void update_switchable_interp_probs(VP9_COMP *cpi, vp9_writer *w) { #endif } -static void update_inter_mode_probs(VP9_COMMON *cm, vp9_writer *w) { - int i, j; - - for (i = 0; i < INTER_MODE_CONTEXTS; ++i) { - unsigned int branch_ct[INTER_MODES - 1][2]; - vp9_tree_probs_from_distribution(vp9_inter_mode_tree, branch_ct, - cm->counts.inter_mode[i]); - - for (j = 0; j < INTER_MODES - 1; ++j) - vp9_cond_prob_diff_update(w, &cm->fc.inter_mode_probs[i][j], - branch_ct[j]); - } -} - static void pack_mb_tokens(vp9_writer* const w, TOKENEXTRA **tp, const TOKENEXTRA *const stop) { @@ -1382,7 +1353,10 @@ static size_t write_compressed_header(VP9_COMP *cpi, uint8_t *data) { active_section = 1; #endif - update_inter_mode_probs(cm, &header_bc); + for (i = 0; i < INTER_MODE_CONTEXTS; ++i) + prob_diff_update(vp9_inter_mode_tree, cm->fc.inter_mode_probs[i], + cm->counts.inter_mode[i], INTER_MODES, &header_bc); + vp9_zero(cm->counts.inter_mode); if (cm->mcomp_filter_type == SWITCHABLE) @@ -1421,14 +1395,15 @@ static size_t write_compressed_header(VP9_COMP *cpi, uint8_t *data) { vp9_cond_prob_diff_update(&header_bc, &fc->comp_ref_prob[i], cpi->comp_ref_count[i]); - update_mbintra_mode_probs(cpi, &header_bc); + for (i = 0; i < BLOCK_SIZE_GROUPS; ++i) + prob_diff_update(vp9_intra_mode_tree, cm->fc.y_mode_prob[i], + (unsigned int *)cpi->y_mode_count[i], INTRA_MODES, + &header_bc); - for (i = 0; i < PARTITION_CONTEXTS; ++i) { - unsigned int bct[PARTITION_TYPES - 1][2]; - update_mode(&header_bc, PARTITION_TYPES, vp9_partition_tree, - fc->partition_prob[i], bct, - (unsigned int *)cpi->partition_count[i]); - } + for (i = 0; i < PARTITION_CONTEXTS; ++i) + prob_diff_update(vp9_partition_tree, fc->partition_prob[i], + (unsigned int *)cpi->partition_count[i], PARTITION_TYPES, + &header_bc); vp9_write_nmv_probs(cpi, cm->allow_high_precision_mv, &header_bc); } diff --git a/vp9/encoder/vp9_encodemv.c b/vp9/encoder/vp9_encodemv.c index 7e838c9..bb9baff 100644 --- a/vp9/encoder/vp9_encodemv.c +++ b/vp9/encoder/vp9_encodemv.c @@ -153,11 +153,8 @@ static void counts_to_nmv_context( vp9_tree_probs_from_distribution(vp9_mv_joint_tree, branch_ct_joint, nmv_count->joints); for (i = 0; i < 2; ++i) { - const uint32_t s0 = nmv_count->comps[i].sign[0]; - const uint32_t s1 = nmv_count->comps[i].sign[1]; - - branch_ct_sign[i][0] = s0; - branch_ct_sign[i][1] = s1; + branch_ct_sign[i][0] = nmv_count->comps[i].sign[0]; + branch_ct_sign[i][1] = nmv_count->comps[i].sign[1]; vp9_tree_probs_from_distribution(vp9_mv_class_tree, branch_ct_classes[i], nmv_count->comps[i].classes); @@ -165,11 +162,8 @@ static void counts_to_nmv_context( branch_ct_class0[i], nmv_count->comps[i].class0); for (j = 0; j < MV_OFFSET_BITS; ++j) { - const uint32_t b0 = nmv_count->comps[i].bits[j][0]; - const uint32_t b1 = nmv_count->comps[i].bits[j][1]; - - branch_ct_bits[i][j][0] = b0; - branch_ct_bits[i][j][1] = b1; + branch_ct_bits[i][j][0] = nmv_count->comps[i].bits[j][0]; + branch_ct_bits[i][j][1] = nmv_count->comps[i].bits[j][1]; } } for (i = 0; i < 2; ++i) { @@ -184,16 +178,11 @@ static void counts_to_nmv_context( } if (usehp) { for (i = 0; i < 2; ++i) { - const uint32_t c0_hp0 = nmv_count->comps[i].class0_hp[0]; - const uint32_t c0_hp1 = nmv_count->comps[i].class0_hp[1]; - const uint32_t hp0 = nmv_count->comps[i].hp[0]; - const uint32_t hp1 = nmv_count->comps[i].hp[1]; - - branch_ct_class0_hp[i][0] = c0_hp0; - branch_ct_class0_hp[i][1] = c0_hp1; + branch_ct_class0_hp[i][0] = nmv_count->comps[i].class0_hp[0]; + branch_ct_class0_hp[i][1] = nmv_count->comps[i].class0_hp[1]; - branch_ct_hp[i][0] = hp0; - branch_ct_hp[i][1] = hp1; + branch_ct_hp[i][0] = nmv_count->comps[i].hp[0]; + branch_ct_hp[i][1] = nmv_count->comps[i].hp[1]; } } } -- 2.7.4