16fefe538d859300e7febe78271828198c10f1b52fgalligan@chromium.org/* 26fefe538d859300e7febe78271828198c10f1b52fgalligan@chromium.org * Copyright (c) 2012 The WebM project authors. All Rights Reserved. 36fefe538d859300e7febe78271828198c10f1b52fgalligan@chromium.org * 46fefe538d859300e7febe78271828198c10f1b52fgalligan@chromium.org * Use of this source code is governed by a BSD-style license 56fefe538d859300e7febe78271828198c10f1b52fgalligan@chromium.org * that can be found in the LICENSE file in the root of the source 66fefe538d859300e7febe78271828198c10f1b52fgalligan@chromium.org * tree. An additional intellectual property rights grant can be found 76fefe538d859300e7febe78271828198c10f1b52fgalligan@chromium.org * in the file PATENTS. All contributing project authors may 86fefe538d859300e7febe78271828198c10f1b52fgalligan@chromium.org * be found in the AUTHORS file in the root of the source tree. 96fefe538d859300e7febe78271828198c10f1b52fgalligan@chromium.org */ 106fefe538d859300e7febe78271828198c10f1b52fgalligan@chromium.org 116fefe538d859300e7febe78271828198c10f1b52fgalligan@chromium.org 1290c5310de3dfbd1b1624502616cbc8aaf9ad25f0johannkoenig@chromium.org#include <limits.h> 13411971f94253c85e1866c281860d6344f6aa0c78fgalligan@chromium.org 146fefe538d859300e7febe78271828198c10f1b52fgalligan@chromium.org#include "vpx_mem/vpx_mem.h" 15411971f94253c85e1866c281860d6344f6aa0c78fgalligan@chromium.org 166fefe538d859300e7febe78271828198c10f1b52fgalligan@chromium.org#include "vp9/common/vp9_pred_common.h" 1790c5310de3dfbd1b1624502616cbc8aaf9ad25f0johannkoenig@chromium.org#include "vp9/common/vp9_tile_common.h" 186fefe538d859300e7febe78271828198c10f1b52fgalligan@chromium.org 1993a74791c8e808ea76001ee07693aa2a5fdd3500johannkoenig@chromium.org#include "vp9/encoder/vp9_cost.h" 20411971f94253c85e1866c281860d6344f6aa0c78fgalligan@chromium.org#include "vp9/encoder/vp9_segmentation.h" 216fefe538d859300e7febe78271828198c10f1b52fgalligan@chromium.org 22411971f94253c85e1866c281860d6344f6aa0c78fgalligan@chromium.orgvoid vp9_enable_segmentation(struct segmentation *seg) { 2353a13f1fa964820f7a8f9d3932a6f3c0433f8bf5fgalligan@chromium.org seg->enabled = 1; 2453a13f1fa964820f7a8f9d3932a6f3c0433f8bf5fgalligan@chromium.org seg->update_map = 1; 2553a13f1fa964820f7a8f9d3932a6f3c0433f8bf5fgalligan@chromium.org seg->update_data = 1; 266fefe538d859300e7febe78271828198c10f1b52fgalligan@chromium.org} 276fefe538d859300e7febe78271828198c10f1b52fgalligan@chromium.org 28411971f94253c85e1866c281860d6344f6aa0c78fgalligan@chromium.orgvoid vp9_disable_segmentation(struct segmentation *seg) { 2953a13f1fa964820f7a8f9d3932a6f3c0433f8bf5fgalligan@chromium.org seg->enabled = 0; 30e2064011d36b2008099446503f28e64d445060ecjohannkoenig@chromium.org seg->update_map = 0; 31e2064011d36b2008099446503f28e64d445060ecjohannkoenig@chromium.org seg->update_data = 0; 326fefe538d859300e7febe78271828198c10f1b52fgalligan@chromium.org} 336fefe538d859300e7febe78271828198c10f1b52fgalligan@chromium.org 34411971f94253c85e1866c281860d6344f6aa0c78fgalligan@chromium.orgvoid vp9_set_segment_data(struct segmentation *seg, 356fefe538d859300e7febe78271828198c10f1b52fgalligan@chromium.org signed char *feature_data, 366fefe538d859300e7febe78271828198c10f1b52fgalligan@chromium.org unsigned char abs_delta) { 3753a13f1fa964820f7a8f9d3932a6f3c0433f8bf5fgalligan@chromium.org seg->abs_delta = abs_delta; 386fefe538d859300e7febe78271828198c10f1b52fgalligan@chromium.org 3953a13f1fa964820f7a8f9d3932a6f3c0433f8bf5fgalligan@chromium.org vpx_memcpy(seg->feature_data, feature_data, sizeof(seg->feature_data)); 406fefe538d859300e7febe78271828198c10f1b52fgalligan@chromium.org 416fefe538d859300e7febe78271828198c10f1b52fgalligan@chromium.org // TBD ?? Set the feature mask 426fefe538d859300e7febe78271828198c10f1b52fgalligan@chromium.org // vpx_memcpy(cpi->mb.e_mbd.segment_feature_mask, 0, 436fefe538d859300e7febe78271828198c10f1b52fgalligan@chromium.org // sizeof(cpi->mb.e_mbd.segment_feature_mask)); 446fefe538d859300e7febe78271828198c10f1b52fgalligan@chromium.org} 458b26fe55f3e4daa2311dbd2d95e8ac2b4e080685johannkoenig@chromium.orgvoid vp9_disable_segfeature(struct segmentation *seg, int segment_id, 468b26fe55f3e4daa2311dbd2d95e8ac2b4e080685johannkoenig@chromium.org SEG_LVL_FEATURES feature_id) { 478b26fe55f3e4daa2311dbd2d95e8ac2b4e080685johannkoenig@chromium.org seg->feature_mask[segment_id] &= ~(1 << feature_id); 488b26fe55f3e4daa2311dbd2d95e8ac2b4e080685johannkoenig@chromium.org} 498b26fe55f3e4daa2311dbd2d95e8ac2b4e080685johannkoenig@chromium.org 508b26fe55f3e4daa2311dbd2d95e8ac2b4e080685johannkoenig@chromium.orgvoid vp9_clear_segdata(struct segmentation *seg, int segment_id, 518b26fe55f3e4daa2311dbd2d95e8ac2b4e080685johannkoenig@chromium.org SEG_LVL_FEATURES feature_id) { 528b26fe55f3e4daa2311dbd2d95e8ac2b4e080685johannkoenig@chromium.org seg->feature_data[segment_id][feature_id] = 0; 538b26fe55f3e4daa2311dbd2d95e8ac2b4e080685johannkoenig@chromium.org} 546fefe538d859300e7febe78271828198c10f1b52fgalligan@chromium.org 556fefe538d859300e7febe78271828198c10f1b52fgalligan@chromium.org// Based on set of segment counts calculate a probability tree 5653a13f1fa964820f7a8f9d3932a6f3c0433f8bf5fgalligan@chromium.orgstatic void calc_segtree_probs(int *segcounts, vp9_prob *segment_tree_probs) { 576fefe538d859300e7febe78271828198c10f1b52fgalligan@chromium.org // Work out probabilities of each segment 5810a9a0d835561a7f2300c561c514efcf374554d6fgalligan@chromium.org const int c01 = segcounts[0] + segcounts[1]; 5910a9a0d835561a7f2300c561c514efcf374554d6fgalligan@chromium.org const int c23 = segcounts[2] + segcounts[3]; 6010a9a0d835561a7f2300c561c514efcf374554d6fgalligan@chromium.org const int c45 = segcounts[4] + segcounts[5]; 6110a9a0d835561a7f2300c561c514efcf374554d6fgalligan@chromium.org const int c67 = segcounts[6] + segcounts[7]; 6210a9a0d835561a7f2300c561c514efcf374554d6fgalligan@chromium.org 6310a9a0d835561a7f2300c561c514efcf374554d6fgalligan@chromium.org segment_tree_probs[0] = get_binary_prob(c01 + c23, c45 + c67); 6410a9a0d835561a7f2300c561c514efcf374554d6fgalligan@chromium.org segment_tree_probs[1] = get_binary_prob(c01, c23); 6510a9a0d835561a7f2300c561c514efcf374554d6fgalligan@chromium.org segment_tree_probs[2] = get_binary_prob(c45, c67); 6610a9a0d835561a7f2300c561c514efcf374554d6fgalligan@chromium.org segment_tree_probs[3] = get_binary_prob(segcounts[0], segcounts[1]); 6710a9a0d835561a7f2300c561c514efcf374554d6fgalligan@chromium.org segment_tree_probs[4] = get_binary_prob(segcounts[2], segcounts[3]); 6810a9a0d835561a7f2300c561c514efcf374554d6fgalligan@chromium.org segment_tree_probs[5] = get_binary_prob(segcounts[4], segcounts[5]); 6910a9a0d835561a7f2300c561c514efcf374554d6fgalligan@chromium.org segment_tree_probs[6] = get_binary_prob(segcounts[6], segcounts[7]); 706fefe538d859300e7febe78271828198c10f1b52fgalligan@chromium.org} 716fefe538d859300e7febe78271828198c10f1b52fgalligan@chromium.org 726fefe538d859300e7febe78271828198c10f1b52fgalligan@chromium.org// Based on set of segment counts and probabilities calculate a cost estimate 7353a13f1fa964820f7a8f9d3932a6f3c0433f8bf5fgalligan@chromium.orgstatic int cost_segmap(int *segcounts, vp9_prob *probs) { 7410a9a0d835561a7f2300c561c514efcf374554d6fgalligan@chromium.org const int c01 = segcounts[0] + segcounts[1]; 7510a9a0d835561a7f2300c561c514efcf374554d6fgalligan@chromium.org const int c23 = segcounts[2] + segcounts[3]; 7610a9a0d835561a7f2300c561c514efcf374554d6fgalligan@chromium.org const int c45 = segcounts[4] + segcounts[5]; 7710a9a0d835561a7f2300c561c514efcf374554d6fgalligan@chromium.org const int c67 = segcounts[6] + segcounts[7]; 7810a9a0d835561a7f2300c561c514efcf374554d6fgalligan@chromium.org const int c0123 = c01 + c23; 7910a9a0d835561a7f2300c561c514efcf374554d6fgalligan@chromium.org const int c4567 = c45 + c67; 806fefe538d859300e7febe78271828198c10f1b52fgalligan@chromium.org 816fefe538d859300e7febe78271828198c10f1b52fgalligan@chromium.org // Cost the top node of the tree 8210a9a0d835561a7f2300c561c514efcf374554d6fgalligan@chromium.org int cost = c0123 * vp9_cost_zero(probs[0]) + 8310a9a0d835561a7f2300c561c514efcf374554d6fgalligan@chromium.org c4567 * vp9_cost_one(probs[0]); 8410a9a0d835561a7f2300c561c514efcf374554d6fgalligan@chromium.org 8510a9a0d835561a7f2300c561c514efcf374554d6fgalligan@chromium.org // Cost subsequent levels 8610a9a0d835561a7f2300c561c514efcf374554d6fgalligan@chromium.org if (c0123 > 0) { 8710a9a0d835561a7f2300c561c514efcf374554d6fgalligan@chromium.org cost += c01 * vp9_cost_zero(probs[1]) + 8810a9a0d835561a7f2300c561c514efcf374554d6fgalligan@chromium.org c23 * vp9_cost_one(probs[1]); 8910a9a0d835561a7f2300c561c514efcf374554d6fgalligan@chromium.org 9010a9a0d835561a7f2300c561c514efcf374554d6fgalligan@chromium.org if (c01 > 0) 9110a9a0d835561a7f2300c561c514efcf374554d6fgalligan@chromium.org cost += segcounts[0] * vp9_cost_zero(probs[3]) + 9210a9a0d835561a7f2300c561c514efcf374554d6fgalligan@chromium.org segcounts[1] * vp9_cost_one(probs[3]); 9310a9a0d835561a7f2300c561c514efcf374554d6fgalligan@chromium.org if (c23 > 0) 9410a9a0d835561a7f2300c561c514efcf374554d6fgalligan@chromium.org cost += segcounts[2] * vp9_cost_zero(probs[4]) + 9510a9a0d835561a7f2300c561c514efcf374554d6fgalligan@chromium.org segcounts[3] * vp9_cost_one(probs[4]); 9610a9a0d835561a7f2300c561c514efcf374554d6fgalligan@chromium.org } 9790c5310de3dfbd1b1624502616cbc8aaf9ad25f0johannkoenig@chromium.org 9810a9a0d835561a7f2300c561c514efcf374554d6fgalligan@chromium.org if (c4567 > 0) { 9910a9a0d835561a7f2300c561c514efcf374554d6fgalligan@chromium.org cost += c45 * vp9_cost_zero(probs[2]) + 10010a9a0d835561a7f2300c561c514efcf374554d6fgalligan@chromium.org c67 * vp9_cost_one(probs[2]); 10190c5310de3dfbd1b1624502616cbc8aaf9ad25f0johannkoenig@chromium.org 10210a9a0d835561a7f2300c561c514efcf374554d6fgalligan@chromium.org if (c45 > 0) 10310a9a0d835561a7f2300c561c514efcf374554d6fgalligan@chromium.org cost += segcounts[4] * vp9_cost_zero(probs[5]) + 10410a9a0d835561a7f2300c561c514efcf374554d6fgalligan@chromium.org segcounts[5] * vp9_cost_one(probs[5]); 10510a9a0d835561a7f2300c561c514efcf374554d6fgalligan@chromium.org if (c67 > 0) 10610a9a0d835561a7f2300c561c514efcf374554d6fgalligan@chromium.org cost += segcounts[6] * vp9_cost_zero(probs[6]) + 10710a9a0d835561a7f2300c561c514efcf374554d6fgalligan@chromium.org segcounts[7] * vp9_cost_one(probs[6]); 10890c5310de3dfbd1b1624502616cbc8aaf9ad25f0johannkoenig@chromium.org } 10990c5310de3dfbd1b1624502616cbc8aaf9ad25f0johannkoenig@chromium.org 11090c5310de3dfbd1b1624502616cbc8aaf9ad25f0johannkoenig@chromium.org return cost; 11190c5310de3dfbd1b1624502616cbc8aaf9ad25f0johannkoenig@chromium.org} 11290c5310de3dfbd1b1624502616cbc8aaf9ad25f0johannkoenig@chromium.org 11341294d96d7dbf9bc215b09832a8336c5fb158f0bjohannkoenig@chromium.orgstatic void count_segs(const VP9_COMMON *cm, MACROBLOCKD *xd, 11487997d490ae52aa962a985c95b3cddf7f8832641johannkoenig@chromium.org const TileInfo *tile, MODE_INFO *mi, 115d348b8d765c019ee7250075d663a83db00c65c08tomfinegan@chromium.org int *no_pred_segcounts, 116d348b8d765c019ee7250075d663a83db00c65c08tomfinegan@chromium.org int (*temporal_predictor_count)[2], 11710a9a0d835561a7f2300c561c514efcf374554d6fgalligan@chromium.org int *t_unpred_seg_counts, 11810a9a0d835561a7f2300c561c514efcf374554d6fgalligan@chromium.org int bw, int bh, int mi_row, int mi_col) { 11910a9a0d835561a7f2300c561c514efcf374554d6fgalligan@chromium.org int segment_id; 12010a9a0d835561a7f2300c561c514efcf374554d6fgalligan@chromium.org 12110a9a0d835561a7f2300c561c514efcf374554d6fgalligan@chromium.org if (mi_row >= cm->mi_rows || mi_col >= cm->mi_cols) 12210a9a0d835561a7f2300c561c514efcf374554d6fgalligan@chromium.org return; 123d348b8d765c019ee7250075d663a83db00c65c08tomfinegan@chromium.org 1247765c078fa920ba6c949c15f16b6cc979d8bb95bjohannkoenig@chromium.org xd->mi = mi; 12587997d490ae52aa962a985c95b3cddf7f8832641johannkoenig@chromium.org segment_id = xd->mi[0].src_mi->mbmi.segment_id; 126f9586bb54d74c97d07b09eb2512f8569c9c1c025fgalligan@chromium.org 127ecee051929d6ced19cf324688774acccc9ad4a0ajohannkoenig@chromium.org set_mi_row_col(xd, tile, mi_row, bh, mi_col, bw, cm->mi_rows, cm->mi_cols); 128d348b8d765c019ee7250075d663a83db00c65c08tomfinegan@chromium.org 129d348b8d765c019ee7250075d663a83db00c65c08tomfinegan@chromium.org // Count the number of hits on each segment with no prediction 130d348b8d765c019ee7250075d663a83db00c65c08tomfinegan@chromium.org no_pred_segcounts[segment_id]++; 131d348b8d765c019ee7250075d663a83db00c65c08tomfinegan@chromium.org 132d348b8d765c019ee7250075d663a83db00c65c08tomfinegan@chromium.org // Temporal prediction not allowed on key frames 133d348b8d765c019ee7250075d663a83db00c65c08tomfinegan@chromium.org if (cm->frame_type != KEY_FRAME) { 13487997d490ae52aa962a985c95b3cddf7f8832641johannkoenig@chromium.org const BLOCK_SIZE bsize = xd->mi[0].src_mi->mbmi.sb_type; 135d348b8d765c019ee7250075d663a83db00c65c08tomfinegan@chromium.org // Test to see if the segment id matches the predicted value. 13647265f8fe3a36a426773454ad90d20c9aa616c24johannkoenig@chromium.org const int pred_segment_id = vp9_get_segment_id(cm, cm->last_frame_seg_map, 13747265f8fe3a36a426773454ad90d20c9aa616c24johannkoenig@chromium.org bsize, mi_row, mi_col); 13847265f8fe3a36a426773454ad90d20c9aa616c24johannkoenig@chromium.org const int pred_flag = pred_segment_id == segment_id; 13947265f8fe3a36a426773454ad90d20c9aa616c24johannkoenig@chromium.org const int pred_context = vp9_get_pred_context_seg_id(xd); 140d348b8d765c019ee7250075d663a83db00c65c08tomfinegan@chromium.org 141d348b8d765c019ee7250075d663a83db00c65c08tomfinegan@chromium.org // Store the prediction status for this mb and update counts 142d348b8d765c019ee7250075d663a83db00c65c08tomfinegan@chromium.org // as appropriate 14387997d490ae52aa962a985c95b3cddf7f8832641johannkoenig@chromium.org xd->mi[0].src_mi->mbmi.seg_id_predicted = pred_flag; 14447265f8fe3a36a426773454ad90d20c9aa616c24johannkoenig@chromium.org temporal_predictor_count[pred_context][pred_flag]++; 1456fefe538d859300e7febe78271828198c10f1b52fgalligan@chromium.org 1467765c078fa920ba6c949c15f16b6cc979d8bb95bjohannkoenig@chromium.org // Update the "unpredicted" segment count 14747265f8fe3a36a426773454ad90d20c9aa616c24johannkoenig@chromium.org if (!pred_flag) 14810a9a0d835561a7f2300c561c514efcf374554d6fgalligan@chromium.org t_unpred_seg_counts[segment_id]++; 14910a9a0d835561a7f2300c561c514efcf374554d6fgalligan@chromium.org } 15010a9a0d835561a7f2300c561c514efcf374554d6fgalligan@chromium.org} 15110a9a0d835561a7f2300c561c514efcf374554d6fgalligan@chromium.org 15241294d96d7dbf9bc215b09832a8336c5fb158f0bjohannkoenig@chromium.orgstatic void count_segs_sb(const VP9_COMMON *cm, MACROBLOCKD *xd, 15387997d490ae52aa962a985c95b3cddf7f8832641johannkoenig@chromium.org const TileInfo *tile, MODE_INFO *mi, 15410a9a0d835561a7f2300c561c514efcf374554d6fgalligan@chromium.org int *no_pred_segcounts, 15510a9a0d835561a7f2300c561c514efcf374554d6fgalligan@chromium.org int (*temporal_predictor_count)[2], 15610a9a0d835561a7f2300c561c514efcf374554d6fgalligan@chromium.org int *t_unpred_seg_counts, 15710a9a0d835561a7f2300c561c514efcf374554d6fgalligan@chromium.org int mi_row, int mi_col, 15853a13f1fa964820f7a8f9d3932a6f3c0433f8bf5fgalligan@chromium.org BLOCK_SIZE bsize) { 15993a74791c8e808ea76001ee07693aa2a5fdd3500johannkoenig@chromium.org const int mis = cm->mi_stride; 16053a13f1fa964820f7a8f9d3932a6f3c0433f8bf5fgalligan@chromium.org int bw, bh; 16153a13f1fa964820f7a8f9d3932a6f3c0433f8bf5fgalligan@chromium.org const int bs = num_8x8_blocks_wide_lookup[bsize], hbs = bs / 2; 16210a9a0d835561a7f2300c561c514efcf374554d6fgalligan@chromium.org 16310a9a0d835561a7f2300c561c514efcf374554d6fgalligan@chromium.org if (mi_row >= cm->mi_rows || mi_col >= cm->mi_cols) 16410a9a0d835561a7f2300c561c514efcf374554d6fgalligan@chromium.org return; 16510a9a0d835561a7f2300c561c514efcf374554d6fgalligan@chromium.org 16687997d490ae52aa962a985c95b3cddf7f8832641johannkoenig@chromium.org bw = num_8x8_blocks_wide_lookup[mi[0].src_mi->mbmi.sb_type]; 16787997d490ae52aa962a985c95b3cddf7f8832641johannkoenig@chromium.org bh = num_8x8_blocks_high_lookup[mi[0].src_mi->mbmi.sb_type]; 16810a9a0d835561a7f2300c561c514efcf374554d6fgalligan@chromium.org 16953a13f1fa964820f7a8f9d3932a6f3c0433f8bf5fgalligan@chromium.org if (bw == bs && bh == bs) { 17041294d96d7dbf9bc215b09832a8336c5fb158f0bjohannkoenig@chromium.org count_segs(cm, xd, tile, mi, no_pred_segcounts, temporal_predictor_count, 17153a13f1fa964820f7a8f9d3932a6f3c0433f8bf5fgalligan@chromium.org t_unpred_seg_counts, bs, bs, mi_row, mi_col); 17253a13f1fa964820f7a8f9d3932a6f3c0433f8bf5fgalligan@chromium.org } else if (bw == bs && bh < bs) { 17341294d96d7dbf9bc215b09832a8336c5fb158f0bjohannkoenig@chromium.org count_segs(cm, xd, tile, mi, no_pred_segcounts, temporal_predictor_count, 17453a13f1fa964820f7a8f9d3932a6f3c0433f8bf5fgalligan@chromium.org t_unpred_seg_counts, bs, hbs, mi_row, mi_col); 17541294d96d7dbf9bc215b09832a8336c5fb158f0bjohannkoenig@chromium.org count_segs(cm, xd, tile, mi + hbs * mis, no_pred_segcounts, 176f9586bb54d74c97d07b09eb2512f8569c9c1c025fgalligan@chromium.org temporal_predictor_count, t_unpred_seg_counts, bs, hbs, 177f9586bb54d74c97d07b09eb2512f8569c9c1c025fgalligan@chromium.org mi_row + hbs, mi_col); 17853a13f1fa964820f7a8f9d3932a6f3c0433f8bf5fgalligan@chromium.org } else if (bw < bs && bh == bs) { 17941294d96d7dbf9bc215b09832a8336c5fb158f0bjohannkoenig@chromium.org count_segs(cm, xd, tile, mi, no_pred_segcounts, temporal_predictor_count, 18053a13f1fa964820f7a8f9d3932a6f3c0433f8bf5fgalligan@chromium.org t_unpred_seg_counts, hbs, bs, mi_row, mi_col); 18141294d96d7dbf9bc215b09832a8336c5fb158f0bjohannkoenig@chromium.org count_segs(cm, xd, tile, mi + hbs, 182ecee051929d6ced19cf324688774acccc9ad4a0ajohannkoenig@chromium.org no_pred_segcounts, temporal_predictor_count, t_unpred_seg_counts, 183ecee051929d6ced19cf324688774acccc9ad4a0ajohannkoenig@chromium.org hbs, bs, mi_row, mi_col + hbs); 18410a9a0d835561a7f2300c561c514efcf374554d6fgalligan@chromium.org } else { 18553a13f1fa964820f7a8f9d3932a6f3c0433f8bf5fgalligan@chromium.org const BLOCK_SIZE subsize = subsize_lookup[PARTITION_SPLIT][bsize]; 18610a9a0d835561a7f2300c561c514efcf374554d6fgalligan@chromium.org int n; 18710a9a0d835561a7f2300c561c514efcf374554d6fgalligan@chromium.org 18853a13f1fa964820f7a8f9d3932a6f3c0433f8bf5fgalligan@chromium.org assert(bw < bs && bh < bs); 18910a9a0d835561a7f2300c561c514efcf374554d6fgalligan@chromium.org 19010a9a0d835561a7f2300c561c514efcf374554d6fgalligan@chromium.org for (n = 0; n < 4; n++) { 19153a13f1fa964820f7a8f9d3932a6f3c0433f8bf5fgalligan@chromium.org const int mi_dc = hbs * (n & 1); 19253a13f1fa964820f7a8f9d3932a6f3c0433f8bf5fgalligan@chromium.org const int mi_dr = hbs * (n >> 1); 19310a9a0d835561a7f2300c561c514efcf374554d6fgalligan@chromium.org 19441294d96d7dbf9bc215b09832a8336c5fb158f0bjohannkoenig@chromium.org count_segs_sb(cm, xd, tile, &mi[mi_dr * mis + mi_dc], 19510a9a0d835561a7f2300c561c514efcf374554d6fgalligan@chromium.org no_pred_segcounts, temporal_predictor_count, 19610a9a0d835561a7f2300c561c514efcf374554d6fgalligan@chromium.org t_unpred_seg_counts, 19753a13f1fa964820f7a8f9d3932a6f3c0433f8bf5fgalligan@chromium.org mi_row + mi_dr, mi_col + mi_dc, subsize); 19810a9a0d835561a7f2300c561c514efcf374554d6fgalligan@chromium.org } 199d348b8d765c019ee7250075d663a83db00c65c08tomfinegan@chromium.org } 2006fefe538d859300e7febe78271828198c10f1b52fgalligan@chromium.org} 2016fefe538d859300e7febe78271828198c10f1b52fgalligan@chromium.org 20241294d96d7dbf9bc215b09832a8336c5fb158f0bjohannkoenig@chromium.orgvoid vp9_choose_segmap_coding_method(VP9_COMMON *cm, MACROBLOCKD *xd) { 20353a13f1fa964820f7a8f9d3932a6f3c0433f8bf5fgalligan@chromium.org struct segmentation *seg = &cm->seg; 2046fefe538d859300e7febe78271828198c10f1b52fgalligan@chromium.org 2056fefe538d859300e7febe78271828198c10f1b52fgalligan@chromium.org int no_pred_cost; 2066fefe538d859300e7febe78271828198c10f1b52fgalligan@chromium.org int t_pred_cost = INT_MAX; 2076fefe538d859300e7febe78271828198c10f1b52fgalligan@chromium.org 20847265f8fe3a36a426773454ad90d20c9aa616c24johannkoenig@chromium.org int i, tile_col, mi_row, mi_col; 2096fefe538d859300e7febe78271828198c10f1b52fgalligan@chromium.org 21053a13f1fa964820f7a8f9d3932a6f3c0433f8bf5fgalligan@chromium.org int temporal_predictor_count[PREDICTION_PROBS][2] = { { 0 } }; 21153a13f1fa964820f7a8f9d3932a6f3c0433f8bf5fgalligan@chromium.org int no_pred_segcounts[MAX_SEGMENTS] = { 0 }; 21253a13f1fa964820f7a8f9d3932a6f3c0433f8bf5fgalligan@chromium.org int t_unpred_seg_counts[MAX_SEGMENTS] = { 0 }; 2136fefe538d859300e7febe78271828198c10f1b52fgalligan@chromium.org 21447265f8fe3a36a426773454ad90d20c9aa616c24johannkoenig@chromium.org vp9_prob no_pred_tree[SEG_TREE_PROBS]; 21547265f8fe3a36a426773454ad90d20c9aa616c24johannkoenig@chromium.org vp9_prob t_pred_tree[SEG_TREE_PROBS]; 2166fefe538d859300e7febe78271828198c10f1b52fgalligan@chromium.org vp9_prob t_nopred_prob[PREDICTION_PROBS]; 2176fefe538d859300e7febe78271828198c10f1b52fgalligan@chromium.org 2186fefe538d859300e7febe78271828198c10f1b52fgalligan@chromium.org // Set default state for the segment tree probabilities and the 2196fefe538d859300e7febe78271828198c10f1b52fgalligan@chromium.org // temporal coding probabilities 22053a13f1fa964820f7a8f9d3932a6f3c0433f8bf5fgalligan@chromium.org vpx_memset(seg->tree_probs, 255, sizeof(seg->tree_probs)); 22153a13f1fa964820f7a8f9d3932a6f3c0433f8bf5fgalligan@chromium.org vpx_memset(seg->pred_probs, 255, sizeof(seg->pred_probs)); 2226fefe538d859300e7febe78271828198c10f1b52fgalligan@chromium.org 2236fefe538d859300e7febe78271828198c10f1b52fgalligan@chromium.org // First of all generate stats regarding how well the last segment map 2246fefe538d859300e7febe78271828198c10f1b52fgalligan@chromium.org // predicts this one 22547265f8fe3a36a426773454ad90d20c9aa616c24johannkoenig@chromium.org for (tile_col = 0; tile_col < 1 << cm->log2_tile_cols; tile_col++) { 226ecee051929d6ced19cf324688774acccc9ad4a0ajohannkoenig@chromium.org TileInfo tile; 22787997d490ae52aa962a985c95b3cddf7f8832641johannkoenig@chromium.org MODE_INFO *mi_ptr; 228ecee051929d6ced19cf324688774acccc9ad4a0ajohannkoenig@chromium.org vp9_tile_init(&tile, cm, 0, tile_col); 2297765c078fa920ba6c949c15f16b6cc979d8bb95bjohannkoenig@chromium.org 23087997d490ae52aa962a985c95b3cddf7f8832641johannkoenig@chromium.org mi_ptr = cm->mi + tile.mi_col_start; 23110a9a0d835561a7f2300c561c514efcf374554d6fgalligan@chromium.org for (mi_row = 0; mi_row < cm->mi_rows; 2327765c078fa920ba6c949c15f16b6cc979d8bb95bjohannkoenig@chromium.org mi_row += 8, mi_ptr += 8 * cm->mi_stride) { 23387997d490ae52aa962a985c95b3cddf7f8832641johannkoenig@chromium.org MODE_INFO *mi = mi_ptr; 234ecee051929d6ced19cf324688774acccc9ad4a0ajohannkoenig@chromium.org for (mi_col = tile.mi_col_start; mi_col < tile.mi_col_end; 23547265f8fe3a36a426773454ad90d20c9aa616c24johannkoenig@chromium.org mi_col += 8, mi += 8) 23641294d96d7dbf9bc215b09832a8336c5fb158f0bjohannkoenig@chromium.org count_segs_sb(cm, xd, &tile, mi, no_pred_segcounts, 237ecee051929d6ced19cf324688774acccc9ad4a0ajohannkoenig@chromium.org temporal_predictor_count, t_unpred_seg_counts, 238ecee051929d6ced19cf324688774acccc9ad4a0ajohannkoenig@chromium.org mi_row, mi_col, BLOCK_64X64); 2396fefe538d859300e7febe78271828198c10f1b52fgalligan@chromium.org } 2406fefe538d859300e7febe78271828198c10f1b52fgalligan@chromium.org } 2416fefe538d859300e7febe78271828198c10f1b52fgalligan@chromium.org 2426fefe538d859300e7febe78271828198c10f1b52fgalligan@chromium.org // Work out probability tree for coding segments without prediction 2436fefe538d859300e7febe78271828198c10f1b52fgalligan@chromium.org // and the cost. 24453a13f1fa964820f7a8f9d3932a6f3c0433f8bf5fgalligan@chromium.org calc_segtree_probs(no_pred_segcounts, no_pred_tree); 24553a13f1fa964820f7a8f9d3932a6f3c0433f8bf5fgalligan@chromium.org no_pred_cost = cost_segmap(no_pred_segcounts, no_pred_tree); 2466fefe538d859300e7febe78271828198c10f1b52fgalligan@chromium.org 2476fefe538d859300e7febe78271828198c10f1b52fgalligan@chromium.org // Key frames cannot use temporal prediction 248ecee051929d6ced19cf324688774acccc9ad4a0ajohannkoenig@chromium.org if (!frame_is_intra_only(cm)) { 2496fefe538d859300e7febe78271828198c10f1b52fgalligan@chromium.org // Work out probability tree for coding those segments not 2506fefe538d859300e7febe78271828198c10f1b52fgalligan@chromium.org // predicted using the temporal method and the cost. 25153a13f1fa964820f7a8f9d3932a6f3c0433f8bf5fgalligan@chromium.org calc_segtree_probs(t_unpred_seg_counts, t_pred_tree); 25253a13f1fa964820f7a8f9d3932a6f3c0433f8bf5fgalligan@chromium.org t_pred_cost = cost_segmap(t_unpred_seg_counts, t_pred_tree); 2536fefe538d859300e7febe78271828198c10f1b52fgalligan@chromium.org 254ecee051929d6ced19cf324688774acccc9ad4a0ajohannkoenig@chromium.org // Add in the cost of the signaling for each prediction context. 2556fefe538d859300e7febe78271828198c10f1b52fgalligan@chromium.org for (i = 0; i < PREDICTION_PROBS; i++) { 25610a9a0d835561a7f2300c561c514efcf374554d6fgalligan@chromium.org const int count0 = temporal_predictor_count[i][0]; 25710a9a0d835561a7f2300c561c514efcf374554d6fgalligan@chromium.org const int count1 = temporal_predictor_count[i][1]; 25810a9a0d835561a7f2300c561c514efcf374554d6fgalligan@chromium.org 25910a9a0d835561a7f2300c561c514efcf374554d6fgalligan@chromium.org t_nopred_prob[i] = get_binary_prob(count0, count1); 2606fefe538d859300e7febe78271828198c10f1b52fgalligan@chromium.org 2616fefe538d859300e7febe78271828198c10f1b52fgalligan@chromium.org // Add in the predictor signaling cost 26210a9a0d835561a7f2300c561c514efcf374554d6fgalligan@chromium.org t_pred_cost += count0 * vp9_cost_zero(t_nopred_prob[i]) + 26310a9a0d835561a7f2300c561c514efcf374554d6fgalligan@chromium.org count1 * vp9_cost_one(t_nopred_prob[i]); 2646fefe538d859300e7febe78271828198c10f1b52fgalligan@chromium.org } 2656fefe538d859300e7febe78271828198c10f1b52fgalligan@chromium.org } 2666fefe538d859300e7febe78271828198c10f1b52fgalligan@chromium.org 2676fefe538d859300e7febe78271828198c10f1b52fgalligan@chromium.org // Now choose which coding method to use. 2686fefe538d859300e7febe78271828198c10f1b52fgalligan@chromium.org if (t_pred_cost < no_pred_cost) { 26953a13f1fa964820f7a8f9d3932a6f3c0433f8bf5fgalligan@chromium.org seg->temporal_update = 1; 27053a13f1fa964820f7a8f9d3932a6f3c0433f8bf5fgalligan@chromium.org vpx_memcpy(seg->tree_probs, t_pred_tree, sizeof(t_pred_tree)); 27153a13f1fa964820f7a8f9d3932a6f3c0433f8bf5fgalligan@chromium.org vpx_memcpy(seg->pred_probs, t_nopred_prob, sizeof(t_nopred_prob)); 2726fefe538d859300e7febe78271828198c10f1b52fgalligan@chromium.org } else { 27353a13f1fa964820f7a8f9d3932a6f3c0433f8bf5fgalligan@chromium.org seg->temporal_update = 0; 27453a13f1fa964820f7a8f9d3932a6f3c0433f8bf5fgalligan@chromium.org vpx_memcpy(seg->tree_probs, no_pred_tree, sizeof(no_pred_tree)); 2756fefe538d859300e7febe78271828198c10f1b52fgalligan@chromium.org } 2766fefe538d859300e7febe78271828198c10f1b52fgalligan@chromium.org} 277dddee1ec7cedf276305b107429f684539b105276johannkoenig@chromium.org 278dddee1ec7cedf276305b107429f684539b105276johannkoenig@chromium.orgvoid vp9_reset_segment_features(struct segmentation *seg) { 279dddee1ec7cedf276305b107429f684539b105276johannkoenig@chromium.org // Set up default state for MB feature flags 280dddee1ec7cedf276305b107429f684539b105276johannkoenig@chromium.org seg->enabled = 0; 281dddee1ec7cedf276305b107429f684539b105276johannkoenig@chromium.org seg->update_map = 0; 282dddee1ec7cedf276305b107429f684539b105276johannkoenig@chromium.org seg->update_data = 0; 283dddee1ec7cedf276305b107429f684539b105276johannkoenig@chromium.org vpx_memset(seg->tree_probs, 255, sizeof(seg->tree_probs)); 284dddee1ec7cedf276305b107429f684539b105276johannkoenig@chromium.org vp9_clearall_segfeatures(seg); 285dddee1ec7cedf276305b107429f684539b105276johannkoenig@chromium.org} 286