| /* | |
| * Copyright (c) 2010 The WebM project authors. All Rights Reserved. | |
| * | |
| * Use of this source code is governed by a BSD-style license | |
| * that can be found in the LICENSE file in the root of the source | |
| * tree. An additional intellectual property rights grant can be found | |
| * in the file PATENTS. All contributing project authors may | |
| * be found in the AUTHORS file in the root of the source tree. | |
| */ | |
| #include "vp8/common/header.h" | |
| #include "encodemv.h" | |
| #include "vp8/common/entropymode.h" | |
| #include "vp8/common/findnearmv.h" | |
| #include "mcomp.h" | |
| #include "vp8/common/systemdependent.h" | |
| #include <assert.h> | |
| #include <stdio.h> | |
| #include <limits.h> | |
| #include "vpx/vpx_encoder.h" | |
| #include "vpx_mem/vpx_mem.h" | |
| #include "bitstream.h" | |
| #include "defaultcoefcounts.h" | |
| #include "vp8/common/common.h" | |
| const int vp8cx_base_skip_false_prob[128] = | |
| { | |
| 255, 255, 255, 255, 255, 255, 255, 255, | |
| 255, 255, 255, 255, 255, 255, 255, 255, | |
| 255, 255, 255, 255, 255, 255, 255, 255, | |
| 255, 255, 255, 255, 255, 255, 255, 255, | |
| 255, 255, 255, 255, 255, 255, 255, 255, | |
| 255, 255, 255, 255, 255, 255, 255, 255, | |
| 255, 255, 255, 255, 255, 255, 255, 255, | |
| 251, 248, 244, 240, 236, 232, 229, 225, | |
| 221, 217, 213, 208, 204, 199, 194, 190, | |
| 187, 183, 179, 175, 172, 168, 164, 160, | |
| 157, 153, 149, 145, 142, 138, 134, 130, | |
| 127, 124, 120, 117, 114, 110, 107, 104, | |
| 101, 98, 95, 92, 89, 86, 83, 80, | |
| 77, 74, 71, 68, 65, 62, 59, 56, | |
| 53, 50, 47, 44, 41, 38, 35, 32, | |
| 30, 28, 26, 24, 22, 20, 18, 16, | |
| }; | |
| #if defined(SECTIONBITS_OUTPUT) | |
| unsigned __int64 Sectionbits[500]; | |
| #endif | |
| #ifdef VP8_ENTROPY_STATS | |
| int intra_mode_stats[10][10][10]; | |
| static unsigned int tree_update_hist [BLOCK_TYPES] [COEF_BANDS] [PREV_COEF_CONTEXTS] [ENTROPY_NODES] [2]; | |
| extern unsigned int active_section; | |
| #endif | |
| #ifdef MODE_STATS | |
| int count_mb_seg[4] = { 0, 0, 0, 0 }; | |
| #endif | |
| static void update_mode( | |
| vp8_writer *const w, | |
| int n, | |
| vp8_token tok [/* n */], | |
| vp8_tree tree, | |
| vp8_prob Pnew [/* n-1 */], | |
| vp8_prob Pcur [/* n-1 */], | |
| unsigned int bct [/* n-1 */] [2], | |
| const unsigned int num_events[/* n */] | |
| ) | |
| { | |
| unsigned int new_b = 0, old_b = 0; | |
| int i = 0; | |
| vp8_tree_probs_from_distribution( | |
| n--, tok, tree, | |
| Pnew, bct, num_events, | |
| 256, 1 | |
| ); | |
| do | |
| { | |
| new_b += vp8_cost_branch(bct[i], Pnew[i]); | |
| old_b += vp8_cost_branch(bct[i], Pcur[i]); | |
| } | |
| while (++i < n); | |
| if (new_b + (n << 8) < old_b) | |
| { | |
| int j = 0; | |
| vp8_write_bit(w, 1); | |
| do | |
| { | |
| const vp8_prob p = Pnew[j]; | |
| vp8_write_literal(w, Pcur[j] = p ? p : 1, 8); | |
| } | |
| while (++j < n); | |
| } | |
| else | |
| vp8_write_bit(w, 0); | |
| } | |
| static void update_mbintra_mode_probs(VP8_COMP *cpi) | |
| { | |
| VP8_COMMON *const x = & cpi->common; | |
| vp8_writer *const w = cpi->bc; | |
| { | |
| vp8_prob Pnew [VP8_YMODES-1]; | |
| unsigned int bct [VP8_YMODES-1] [2]; | |
| update_mode( | |
| w, VP8_YMODES, vp8_ymode_encodings, vp8_ymode_tree, | |
| Pnew, x->fc.ymode_prob, bct, (unsigned int *)cpi->mb.ymode_count | |
| ); | |
| } | |
| { | |
| vp8_prob Pnew [VP8_UV_MODES-1]; | |
| unsigned int bct [VP8_UV_MODES-1] [2]; | |
| update_mode( | |
| w, VP8_UV_MODES, vp8_uv_mode_encodings, vp8_uv_mode_tree, | |
| Pnew, x->fc.uv_mode_prob, bct, (unsigned int *)cpi->mb.uv_mode_count | |
| ); | |
| } | |
| } | |
| static void write_ymode(vp8_writer *bc, int m, const vp8_prob *p) | |
| { | |
| vp8_write_token(bc, vp8_ymode_tree, p, vp8_ymode_encodings + m); | |
| } | |
| static void kfwrite_ymode(vp8_writer *bc, int m, const vp8_prob *p) | |
| { | |
| vp8_write_token(bc, vp8_kf_ymode_tree, p, vp8_kf_ymode_encodings + m); | |
| } | |
| static void write_uv_mode(vp8_writer *bc, int m, const vp8_prob *p) | |
| { | |
| vp8_write_token(bc, vp8_uv_mode_tree, p, vp8_uv_mode_encodings + m); | |
| } | |
| static void write_bmode(vp8_writer *bc, int m, const vp8_prob *p) | |
| { | |
| vp8_write_token(bc, vp8_bmode_tree, p, vp8_bmode_encodings + m); | |
| } | |
| static void write_split(vp8_writer *bc, int x) | |
| { | |
| vp8_write_token( | |
| bc, vp8_mbsplit_tree, vp8_mbsplit_probs, vp8_mbsplit_encodings + x | |
| ); | |
| } | |
| void vp8_pack_tokens(vp8_writer *w, const TOKENEXTRA *p, int xcount) | |
| { | |
| const TOKENEXTRA *stop = p + xcount; | |
| unsigned int split; | |
| unsigned int shift; | |
| int count = w->count; | |
| unsigned int range = w->range; | |
| unsigned int lowvalue = w->lowvalue; | |
| while (p < stop) | |
| { | |
| const int t = p->Token; | |
| vp8_token *a = vp8_coef_encodings + t; | |
| const vp8_extra_bit_struct *b = vp8_extra_bits + t; | |
| int i = 0; | |
| const unsigned char *pp = p->context_tree; | |
| int v = a->value; | |
| int n = a->Len; | |
| if (p->skip_eob_node) | |
| { | |
| n--; | |
| i = 2; | |
| } | |
| do | |
| { | |
| const int bb = (v >> --n) & 1; | |
| split = 1 + (((range - 1) * pp[i>>1]) >> 8); | |
| i = vp8_coef_tree[i+bb]; | |
| if (bb) | |
| { | |
| lowvalue += split; | |
| range = range - split; | |
| } | |
| else | |
| { | |
| range = split; | |
| } | |
| shift = vp8_norm[range]; | |
| range <<= shift; | |
| count += shift; | |
| if (count >= 0) | |
| { | |
| int offset = shift - count; | |
| if ((lowvalue << (offset - 1)) & 0x80000000) | |
| { | |
| int x = w->pos - 1; | |
| while (x >= 0 && w->buffer[x] == 0xff) | |
| { | |
| w->buffer[x] = (unsigned char)0; | |
| x--; | |
| } | |
| w->buffer[x] += 1; | |
| } | |
| validate_buffer(w->buffer + w->pos, | |
| 1, | |
| w->buffer_end, | |
| w->error); | |
| w->buffer[w->pos++] = (lowvalue >> (24 - offset)); | |
| lowvalue <<= offset; | |
| shift = count; | |
| lowvalue &= 0xffffff; | |
| count -= 8 ; | |
| } | |
| lowvalue <<= shift; | |
| } | |
| while (n); | |
| if (b->base_val) | |
| { | |
| const int e = p->Extra, L = b->Len; | |
| if (L) | |
| { | |
| const unsigned char *proba = b->prob; | |
| const int v2 = e >> 1; | |
| int n2 = L; /* number of bits in v2, assumed nonzero */ | |
| i = 0; | |
| do | |
| { | |
| const int bb = (v2 >> --n2) & 1; | |
| split = 1 + (((range - 1) * proba[i>>1]) >> 8); | |
| i = b->tree[i+bb]; | |
| if (bb) | |
| { | |
| lowvalue += split; | |
| range = range - split; | |
| } | |
| else | |
| { | |
| range = split; | |
| } | |
| shift = vp8_norm[range]; | |
| range <<= shift; | |
| count += shift; | |
| if (count >= 0) | |
| { | |
| int offset = shift - count; | |
| if ((lowvalue << (offset - 1)) & 0x80000000) | |
| { | |
| int x = w->pos - 1; | |
| while (x >= 0 && w->buffer[x] == 0xff) | |
| { | |
| w->buffer[x] = (unsigned char)0; | |
| x--; | |
| } | |
| w->buffer[x] += 1; | |
| } | |
| validate_buffer(w->buffer + w->pos, | |
| 1, | |
| w->buffer_end, | |
| w->error); | |
| w->buffer[w->pos++] = (lowvalue >> (24 - offset)); | |
| lowvalue <<= offset; | |
| shift = count; | |
| lowvalue &= 0xffffff; | |
| count -= 8 ; | |
| } | |
| lowvalue <<= shift; | |
| } | |
| while (n2); | |
| } | |
| { | |
| split = (range + 1) >> 1; | |
| if (e & 1) | |
| { | |
| lowvalue += split; | |
| range = range - split; | |
| } | |
| else | |
| { | |
| range = split; | |
| } | |
| range <<= 1; | |
| if ((lowvalue & 0x80000000)) | |
| { | |
| int x = w->pos - 1; | |
| while (x >= 0 && w->buffer[x] == 0xff) | |
| { | |
| w->buffer[x] = (unsigned char)0; | |
| x--; | |
| } | |
| w->buffer[x] += 1; | |
| } | |
| lowvalue <<= 1; | |
| if (!++count) | |
| { | |
| count = -8; | |
| validate_buffer(w->buffer + w->pos, | |
| 1, | |
| w->buffer_end, | |
| w->error); | |
| w->buffer[w->pos++] = (lowvalue >> 24); | |
| lowvalue &= 0xffffff; | |
| } | |
| } | |
| } | |
| ++p; | |
| } | |
| w->count = count; | |
| w->lowvalue = lowvalue; | |
| w->range = range; | |
| } | |
| static void write_partition_size(unsigned char *cx_data, int size) | |
| { | |
| signed char csize; | |
| csize = size & 0xff; | |
| *cx_data = csize; | |
| csize = (size >> 8) & 0xff; | |
| *(cx_data + 1) = csize; | |
| csize = (size >> 16) & 0xff; | |
| *(cx_data + 2) = csize; | |
| } | |
| static void pack_tokens_into_partitions(VP8_COMP *cpi, unsigned char *cx_data, | |
| unsigned char * cx_data_end, | |
| int num_part) | |
| { | |
| int i; | |
| unsigned char *ptr = cx_data; | |
| unsigned char *ptr_end = cx_data_end; | |
| vp8_writer * w; | |
| for (i = 0; i < num_part; i++) | |
| { | |
| int mb_row; | |
| w = cpi->bc + i + 1; | |
| vp8_start_encode(w, ptr, ptr_end); | |
| for (mb_row = i; mb_row < cpi->common.mb_rows; mb_row += num_part) | |
| { | |
| const TOKENEXTRA *p = cpi->tplist[mb_row].start; | |
| const TOKENEXTRA *stop = cpi->tplist[mb_row].stop; | |
| int tokens = (int)(stop - p); | |
| vp8_pack_tokens(w, p, tokens); | |
| } | |
| vp8_stop_encode(w); | |
| ptr += w->pos; | |
| } | |
| } | |
| #if CONFIG_MULTITHREAD | |
| static void pack_mb_row_tokens(VP8_COMP *cpi, vp8_writer *w) | |
| { | |
| int mb_row; | |
| for (mb_row = 0; mb_row < cpi->common.mb_rows; mb_row++) | |
| { | |
| const TOKENEXTRA *p = cpi->tplist[mb_row].start; | |
| const TOKENEXTRA *stop = cpi->tplist[mb_row].stop; | |
| int tokens = (int)(stop - p); | |
| vp8_pack_tokens(w, p, tokens); | |
| } | |
| } | |
| #endif // CONFIG_MULTITHREAD | |
| static void write_mv_ref | |
| ( | |
| vp8_writer *w, MB_PREDICTION_MODE m, const vp8_prob *p | |
| ) | |
| { | |
| #if CONFIG_DEBUG | |
| assert(NEARESTMV <= m && m <= SPLITMV); | |
| #endif | |
| vp8_write_token(w, vp8_mv_ref_tree, p, | |
| vp8_mv_ref_encoding_array + (m - NEARESTMV)); | |
| } | |
| static void write_sub_mv_ref | |
| ( | |
| vp8_writer *w, B_PREDICTION_MODE m, const vp8_prob *p | |
| ) | |
| { | |
| #if CONFIG_DEBUG | |
| assert(LEFT4X4 <= m && m <= NEW4X4); | |
| #endif | |
| vp8_write_token(w, vp8_sub_mv_ref_tree, p, | |
| vp8_sub_mv_ref_encoding_array + (m - LEFT4X4)); | |
| } | |
| static void write_mv | |
| ( | |
| vp8_writer *w, const MV *mv, const int_mv *ref, const MV_CONTEXT *mvc | |
| ) | |
| { | |
| MV e; | |
| e.row = mv->row - ref->as_mv.row; | |
| e.col = mv->col - ref->as_mv.col; | |
| vp8_encode_motion_vector(w, &e, mvc); | |
| } | |
| static void write_mb_features(vp8_writer *w, const MB_MODE_INFO *mi, const MACROBLOCKD *x) | |
| { | |
| /* Encode the MB segment id. */ | |
| if (x->segmentation_enabled && x->update_mb_segmentation_map) | |
| { | |
| switch (mi->segment_id) | |
| { | |
| case 0: | |
| vp8_write(w, 0, x->mb_segment_tree_probs[0]); | |
| vp8_write(w, 0, x->mb_segment_tree_probs[1]); | |
| break; | |
| case 1: | |
| vp8_write(w, 0, x->mb_segment_tree_probs[0]); | |
| vp8_write(w, 1, x->mb_segment_tree_probs[1]); | |
| break; | |
| case 2: | |
| vp8_write(w, 1, x->mb_segment_tree_probs[0]); | |
| vp8_write(w, 0, x->mb_segment_tree_probs[2]); | |
| break; | |
| case 3: | |
| vp8_write(w, 1, x->mb_segment_tree_probs[0]); | |
| vp8_write(w, 1, x->mb_segment_tree_probs[2]); | |
| break; | |
| /* TRAP.. This should not happen */ | |
| default: | |
| vp8_write(w, 0, x->mb_segment_tree_probs[0]); | |
| vp8_write(w, 0, x->mb_segment_tree_probs[1]); | |
| break; | |
| } | |
| } | |
| } | |
| void vp8_convert_rfct_to_prob(VP8_COMP *const cpi) | |
| { | |
| const int *const rfct = cpi->mb.count_mb_ref_frame_usage; | |
| const int rf_intra = rfct[INTRA_FRAME]; | |
| const int rf_inter = rfct[LAST_FRAME] + rfct[GOLDEN_FRAME] + rfct[ALTREF_FRAME]; | |
| /* Calculate the probabilities used to code the ref frame based on usage */ | |
| if (!(cpi->prob_intra_coded = rf_intra * 255 / (rf_intra + rf_inter))) | |
| cpi->prob_intra_coded = 1; | |
| cpi->prob_last_coded = rf_inter ? (rfct[LAST_FRAME] * 255) / rf_inter : 128; | |
| if (!cpi->prob_last_coded) | |
| cpi->prob_last_coded = 1; | |
| cpi->prob_gf_coded = (rfct[GOLDEN_FRAME] + rfct[ALTREF_FRAME]) | |
| ? (rfct[GOLDEN_FRAME] * 255) / (rfct[GOLDEN_FRAME] + rfct[ALTREF_FRAME]) : 128; | |
| if (!cpi->prob_gf_coded) | |
| cpi->prob_gf_coded = 1; | |
| } | |
| static void pack_inter_mode_mvs(VP8_COMP *const cpi) | |
| { | |
| VP8_COMMON *const pc = & cpi->common; | |
| vp8_writer *const w = cpi->bc; | |
| const MV_CONTEXT *mvc = pc->fc.mvc; | |
| MODE_INFO *m = pc->mi; | |
| const int mis = pc->mode_info_stride; | |
| int mb_row = -1; | |
| int prob_skip_false = 0; | |
| cpi->mb.partition_info = cpi->mb.pi; | |
| vp8_convert_rfct_to_prob(cpi); | |
| #ifdef VP8_ENTROPY_STATS | |
| active_section = 1; | |
| #endif | |
| if (pc->mb_no_coeff_skip) | |
| { | |
| int total_mbs = pc->mb_rows * pc->mb_cols; | |
| prob_skip_false = (total_mbs - cpi->mb.skip_true_count ) * 256 / total_mbs; | |
| if (prob_skip_false <= 1) | |
| prob_skip_false = 1; | |
| if (prob_skip_false > 255) | |
| prob_skip_false = 255; | |
| cpi->prob_skip_false = prob_skip_false; | |
| vp8_write_literal(w, prob_skip_false, 8); | |
| } | |
| vp8_write_literal(w, cpi->prob_intra_coded, 8); | |
| vp8_write_literal(w, cpi->prob_last_coded, 8); | |
| vp8_write_literal(w, cpi->prob_gf_coded, 8); | |
| update_mbintra_mode_probs(cpi); | |
| vp8_write_mvprobs(cpi); | |
| while (++mb_row < pc->mb_rows) | |
| { | |
| int mb_col = -1; | |
| while (++mb_col < pc->mb_cols) | |
| { | |
| const MB_MODE_INFO *const mi = & m->mbmi; | |
| const MV_REFERENCE_FRAME rf = mi->ref_frame; | |
| const MB_PREDICTION_MODE mode = mi->mode; | |
| MACROBLOCKD *xd = &cpi->mb.e_mbd; | |
| /* Distance of Mb to the various image edges. | |
| * These specified to 8th pel as they are always compared to MV | |
| * values that are in 1/8th pel units | |
| */ | |
| xd->mb_to_left_edge = -((mb_col * 16) << 3); | |
| xd->mb_to_right_edge = ((pc->mb_cols - 1 - mb_col) * 16) << 3; | |
| xd->mb_to_top_edge = -((mb_row * 16) << 3); | |
| xd->mb_to_bottom_edge = ((pc->mb_rows - 1 - mb_row) * 16) << 3; | |
| #ifdef VP8_ENTROPY_STATS | |
| active_section = 9; | |
| #endif | |
| if (cpi->mb.e_mbd.update_mb_segmentation_map) | |
| write_mb_features(w, mi, &cpi->mb.e_mbd); | |
| if (pc->mb_no_coeff_skip) | |
| vp8_encode_bool(w, m->mbmi.mb_skip_coeff, prob_skip_false); | |
| if (rf == INTRA_FRAME) | |
| { | |
| vp8_write(w, 0, cpi->prob_intra_coded); | |
| #ifdef VP8_ENTROPY_STATS | |
| active_section = 6; | |
| #endif | |
| write_ymode(w, mode, pc->fc.ymode_prob); | |
| if (mode == B_PRED) | |
| { | |
| int j = 0; | |
| do | |
| write_bmode(w, m->bmi[j].as_mode, pc->fc.bmode_prob); | |
| while (++j < 16); | |
| } | |
| write_uv_mode(w, mi->uv_mode, pc->fc.uv_mode_prob); | |
| } | |
| else /* inter coded */ | |
| { | |
| int_mv best_mv; | |
| vp8_prob mv_ref_p [VP8_MVREFS-1]; | |
| vp8_write(w, 1, cpi->prob_intra_coded); | |
| if (rf == LAST_FRAME) | |
| vp8_write(w, 0, cpi->prob_last_coded); | |
| else | |
| { | |
| vp8_write(w, 1, cpi->prob_last_coded); | |
| vp8_write(w, (rf == GOLDEN_FRAME) ? 0 : 1, cpi->prob_gf_coded); | |
| } | |
| { | |
| int_mv n1, n2; | |
| int ct[4]; | |
| vp8_find_near_mvs(xd, m, &n1, &n2, &best_mv, ct, rf, cpi->common.ref_frame_sign_bias); | |
| vp8_clamp_mv2(&best_mv, xd); | |
| vp8_mv_ref_probs(mv_ref_p, ct); | |
| #ifdef VP8_ENTROPY_STATS | |
| accum_mv_refs(mode, ct); | |
| #endif | |
| } | |
| #ifdef VP8_ENTROPY_STATS | |
| active_section = 3; | |
| #endif | |
| write_mv_ref(w, mode, mv_ref_p); | |
| switch (mode) /* new, split require MVs */ | |
| { | |
| case NEWMV: | |
| #ifdef VP8_ENTROPY_STATS | |
| active_section = 5; | |
| #endif | |
| write_mv(w, &mi->mv.as_mv, &best_mv, mvc); | |
| break; | |
| case SPLITMV: | |
| { | |
| int j = 0; | |
| #ifdef MODE_STATS | |
| ++count_mb_seg [mi->partitioning]; | |
| #endif | |
| write_split(w, mi->partitioning); | |
| do | |
| { | |
| B_PREDICTION_MODE blockmode; | |
| int_mv blockmv; | |
| const int *const L = vp8_mbsplits [mi->partitioning]; | |
| int k = -1; /* first block in subset j */ | |
| int mv_contz; | |
| int_mv leftmv, abovemv; | |
| blockmode = cpi->mb.partition_info->bmi[j].mode; | |
| blockmv = cpi->mb.partition_info->bmi[j].mv; | |
| #if CONFIG_DEBUG | |
| while (j != L[++k]) | |
| if (k >= 16) | |
| assert(0); | |
| #else | |
| while (j != L[++k]); | |
| #endif | |
| leftmv.as_int = left_block_mv(m, k); | |
| abovemv.as_int = above_block_mv(m, k, mis); | |
| mv_contz = vp8_mv_cont(&leftmv, &abovemv); | |
| write_sub_mv_ref(w, blockmode, vp8_sub_mv_ref_prob2 [mv_contz]); | |
| if (blockmode == NEW4X4) | |
| { | |
| #ifdef VP8_ENTROPY_STATS | |
| active_section = 11; | |
| #endif | |
| write_mv(w, &blockmv.as_mv, &best_mv, (const MV_CONTEXT *) mvc); | |
| } | |
| } | |
| while (++j < cpi->mb.partition_info->count); | |
| } | |
| break; | |
| default: | |
| break; | |
| } | |
| } | |
| ++m; | |
| cpi->mb.partition_info++; | |
| } | |
| ++m; /* skip L prediction border */ | |
| cpi->mb.partition_info++; | |
| } | |
| } | |
| static void write_kfmodes(VP8_COMP *cpi) | |
| { | |
| vp8_writer *const bc = cpi->bc; | |
| const VP8_COMMON *const c = & cpi->common; | |
| /* const */ | |
| MODE_INFO *m = c->mi; | |
| int mb_row = -1; | |
| int prob_skip_false = 0; | |
| if (c->mb_no_coeff_skip) | |
| { | |
| int total_mbs = c->mb_rows * c->mb_cols; | |
| prob_skip_false = (total_mbs - cpi->mb.skip_true_count ) * 256 / total_mbs; | |
| if (prob_skip_false <= 1) | |
| prob_skip_false = 1; | |
| if (prob_skip_false >= 255) | |
| prob_skip_false = 255; | |
| cpi->prob_skip_false = prob_skip_false; | |
| vp8_write_literal(bc, prob_skip_false, 8); | |
| } | |
| while (++mb_row < c->mb_rows) | |
| { | |
| int mb_col = -1; | |
| while (++mb_col < c->mb_cols) | |
| { | |
| const int ym = m->mbmi.mode; | |
| if (cpi->mb.e_mbd.update_mb_segmentation_map) | |
| write_mb_features(bc, &m->mbmi, &cpi->mb.e_mbd); | |
| if (c->mb_no_coeff_skip) | |
| vp8_encode_bool(bc, m->mbmi.mb_skip_coeff, prob_skip_false); | |
| kfwrite_ymode(bc, ym, vp8_kf_ymode_prob); | |
| if (ym == B_PRED) | |
| { | |
| const int mis = c->mode_info_stride; | |
| int i = 0; | |
| do | |
| { | |
| const B_PREDICTION_MODE A = above_block_mode(m, i, mis); | |
| const B_PREDICTION_MODE L = left_block_mode(m, i); | |
| const int bm = m->bmi[i].as_mode; | |
| #ifdef VP8_ENTROPY_STATS | |
| ++intra_mode_stats [A] [L] [bm]; | |
| #endif | |
| write_bmode(bc, bm, vp8_kf_bmode_prob [A] [L]); | |
| } | |
| while (++i < 16); | |
| } | |
| write_uv_mode(bc, (m++)->mbmi.uv_mode, vp8_kf_uv_mode_prob); | |
| } | |
| m++; /* skip L prediction border */ | |
| } | |
| } | |
| #if 0 | |
| /* This function is used for debugging probability trees. */ | |
| static void print_prob_tree(vp8_prob | |
| coef_probs[BLOCK_TYPES][COEF_BANDS][PREV_COEF_CONTEXTS][ENTROPY_NODES]) | |
| { | |
| /* print coef probability tree */ | |
| int i,j,k,l; | |
| FILE* f = fopen("enc_tree_probs.txt", "a"); | |
| fprintf(f, "{\n"); | |
| for (i = 0; i < BLOCK_TYPES; i++) | |
| { | |
| fprintf(f, " {\n"); | |
| for (j = 0; j < COEF_BANDS; j++) | |
| { | |
| fprintf(f, " {\n"); | |
| for (k = 0; k < PREV_COEF_CONTEXTS; k++) | |
| { | |
| fprintf(f, " {"); | |
| for (l = 0; l < ENTROPY_NODES; l++) | |
| { | |
| fprintf(f, "%3u, ", | |
| (unsigned int)(coef_probs [i][j][k][l])); | |
| } | |
| fprintf(f, " }\n"); | |
| } | |
| fprintf(f, " }\n"); | |
| } | |
| fprintf(f, " }\n"); | |
| } | |
| fprintf(f, "}\n"); | |
| fclose(f); | |
| } | |
| #endif | |
| static void sum_probs_over_prev_coef_context( | |
| const unsigned int probs[PREV_COEF_CONTEXTS][MAX_ENTROPY_TOKENS], | |
| unsigned int* out) | |
| { | |
| int i, j; | |
| for (i=0; i < MAX_ENTROPY_TOKENS; ++i) | |
| { | |
| for (j=0; j < PREV_COEF_CONTEXTS; ++j) | |
| { | |
| const unsigned int tmp = out[i]; | |
| out[i] += probs[j][i]; | |
| /* check for wrap */ | |
| if (out[i] < tmp) | |
| out[i] = UINT_MAX; | |
| } | |
| } | |
| } | |
| static int prob_update_savings(const unsigned int *ct, | |
| const vp8_prob oldp, const vp8_prob newp, | |
| const vp8_prob upd) | |
| { | |
| const int old_b = vp8_cost_branch(ct, oldp); | |
| const int new_b = vp8_cost_branch(ct, newp); | |
| const int update_b = 8 + | |
| ((vp8_cost_one(upd) - vp8_cost_zero(upd)) >> 8); | |
| return old_b - new_b - update_b; | |
| } | |
| static int independent_coef_context_savings(VP8_COMP *cpi) | |
| { | |
| MACROBLOCK *const x = & cpi->mb; | |
| int savings = 0; | |
| int i = 0; | |
| do | |
| { | |
| int j = 0; | |
| do | |
| { | |
| int k = 0; | |
| unsigned int prev_coef_count_sum[MAX_ENTROPY_TOKENS] = {0}; | |
| int prev_coef_savings[MAX_ENTROPY_TOKENS] = {0}; | |
| const unsigned int (*probs)[MAX_ENTROPY_TOKENS]; | |
| /* Calculate new probabilities given the constraint that | |
| * they must be equal over the prev coef contexts | |
| */ | |
| probs = (const unsigned int (*)[MAX_ENTROPY_TOKENS]) | |
| x->coef_counts[i][j]; | |
| /* Reset to default probabilities at key frames */ | |
| if (cpi->common.frame_type == KEY_FRAME) | |
| probs = default_coef_counts[i][j]; | |
| sum_probs_over_prev_coef_context(probs, prev_coef_count_sum); | |
| do | |
| { | |
| /* at every context */ | |
| /* calc probs and branch cts for this frame only */ | |
| int t = 0; /* token/prob index */ | |
| vp8_tree_probs_from_distribution( | |
| MAX_ENTROPY_TOKENS, vp8_coef_encodings, vp8_coef_tree, | |
| cpi->frame_coef_probs[i][j][k], | |
| cpi->frame_branch_ct [i][j][k], | |
| prev_coef_count_sum, | |
| 256, 1); | |
| do | |
| { | |
| const unsigned int *ct = cpi->frame_branch_ct [i][j][k][t]; | |
| const vp8_prob newp = cpi->frame_coef_probs [i][j][k][t]; | |
| const vp8_prob oldp = cpi->common.fc.coef_probs [i][j][k][t]; | |
| const vp8_prob upd = vp8_coef_update_probs [i][j][k][t]; | |
| const int s = prob_update_savings(ct, oldp, newp, upd); | |
| if (cpi->common.frame_type != KEY_FRAME || | |
| (cpi->common.frame_type == KEY_FRAME && newp != oldp)) | |
| prev_coef_savings[t] += s; | |
| } | |
| while (++t < ENTROPY_NODES); | |
| } | |
| while (++k < PREV_COEF_CONTEXTS); | |
| k = 0; | |
| do | |
| { | |
| /* We only update probabilities if we can save bits, except | |
| * for key frames where we have to update all probabilities | |
| * to get the equal probabilities across the prev coef | |
| * contexts. | |
| */ | |
| if (prev_coef_savings[k] > 0 || | |
| cpi->common.frame_type == KEY_FRAME) | |
| savings += prev_coef_savings[k]; | |
| } | |
| while (++k < ENTROPY_NODES); | |
| } | |
| while (++j < COEF_BANDS); | |
| } | |
| while (++i < BLOCK_TYPES); | |
| return savings; | |
| } | |
| static int default_coef_context_savings(VP8_COMP *cpi) | |
| { | |
| MACROBLOCK *const x = & cpi->mb; | |
| int savings = 0; | |
| int i = 0; | |
| do | |
| { | |
| int j = 0; | |
| do | |
| { | |
| int k = 0; | |
| do | |
| { | |
| /* at every context */ | |
| /* calc probs and branch cts for this frame only */ | |
| int t = 0; /* token/prob index */ | |
| vp8_tree_probs_from_distribution( | |
| MAX_ENTROPY_TOKENS, vp8_coef_encodings, vp8_coef_tree, | |
| cpi->frame_coef_probs [i][j][k], | |
| cpi->frame_branch_ct [i][j][k], | |
| x->coef_counts [i][j][k], | |
| 256, 1 | |
| ); | |
| do | |
| { | |
| const unsigned int *ct = cpi->frame_branch_ct [i][j][k][t]; | |
| const vp8_prob newp = cpi->frame_coef_probs [i][j][k][t]; | |
| const vp8_prob oldp = cpi->common.fc.coef_probs [i][j][k][t]; | |
| const vp8_prob upd = vp8_coef_update_probs [i][j][k][t]; | |
| const int s = prob_update_savings(ct, oldp, newp, upd); | |
| if (s > 0) | |
| { | |
| savings += s; | |
| } | |
| } | |
| while (++t < ENTROPY_NODES); | |
| } | |
| while (++k < PREV_COEF_CONTEXTS); | |
| } | |
| while (++j < COEF_BANDS); | |
| } | |
| while (++i < BLOCK_TYPES); | |
| return savings; | |
| } | |
| void vp8_calc_ref_frame_costs(int *ref_frame_cost, | |
| int prob_intra, | |
| int prob_last, | |
| int prob_garf | |
| ) | |
| { | |
| assert(prob_intra >= 0); | |
| assert(prob_intra <= 255); | |
| assert(prob_last >= 0); | |
| assert(prob_last <= 255); | |
| assert(prob_garf >= 0); | |
| assert(prob_garf <= 255); | |
| ref_frame_cost[INTRA_FRAME] = vp8_cost_zero(prob_intra); | |
| ref_frame_cost[LAST_FRAME] = vp8_cost_one(prob_intra) | |
| + vp8_cost_zero(prob_last); | |
| ref_frame_cost[GOLDEN_FRAME] = vp8_cost_one(prob_intra) | |
| + vp8_cost_one(prob_last) | |
| + vp8_cost_zero(prob_garf); | |
| ref_frame_cost[ALTREF_FRAME] = vp8_cost_one(prob_intra) | |
| + vp8_cost_one(prob_last) | |
| + vp8_cost_one(prob_garf); | |
| } | |
| int vp8_estimate_entropy_savings(VP8_COMP *cpi) | |
| { | |
| int savings = 0; | |
| const int *const rfct = cpi->mb.count_mb_ref_frame_usage; | |
| const int rf_intra = rfct[INTRA_FRAME]; | |
| const int rf_inter = rfct[LAST_FRAME] + rfct[GOLDEN_FRAME] + rfct[ALTREF_FRAME]; | |
| int new_intra, new_last, new_garf, oldtotal, newtotal; | |
| int ref_frame_cost[MAX_REF_FRAMES]; | |
| vp8_clear_system_state(); | |
| if (cpi->common.frame_type != KEY_FRAME) | |
| { | |
| if (!(new_intra = rf_intra * 255 / (rf_intra + rf_inter))) | |
| new_intra = 1; | |
| new_last = rf_inter ? (rfct[LAST_FRAME] * 255) / rf_inter : 128; | |
| new_garf = (rfct[GOLDEN_FRAME] + rfct[ALTREF_FRAME]) | |
| ? (rfct[GOLDEN_FRAME] * 255) / (rfct[GOLDEN_FRAME] + rfct[ALTREF_FRAME]) : 128; | |
| vp8_calc_ref_frame_costs(ref_frame_cost,new_intra,new_last,new_garf); | |
| newtotal = | |
| rfct[INTRA_FRAME] * ref_frame_cost[INTRA_FRAME] + | |
| rfct[LAST_FRAME] * ref_frame_cost[LAST_FRAME] + | |
| rfct[GOLDEN_FRAME] * ref_frame_cost[GOLDEN_FRAME] + | |
| rfct[ALTREF_FRAME] * ref_frame_cost[ALTREF_FRAME]; | |
| /* old costs */ | |
| vp8_calc_ref_frame_costs(ref_frame_cost,cpi->prob_intra_coded, | |
| cpi->prob_last_coded,cpi->prob_gf_coded); | |
| oldtotal = | |
| rfct[INTRA_FRAME] * ref_frame_cost[INTRA_FRAME] + | |
| rfct[LAST_FRAME] * ref_frame_cost[LAST_FRAME] + | |
| rfct[GOLDEN_FRAME] * ref_frame_cost[GOLDEN_FRAME] + | |
| rfct[ALTREF_FRAME] * ref_frame_cost[ALTREF_FRAME]; | |
| savings += (oldtotal - newtotal) / 256; | |
| } | |
| if (cpi->oxcf.error_resilient_mode & VPX_ERROR_RESILIENT_PARTITIONS) | |
| savings += independent_coef_context_savings(cpi); | |
| else | |
| savings += default_coef_context_savings(cpi); | |
| return savings; | |
| } | |
| #if CONFIG_REALTIME_ONLY & CONFIG_ONTHEFLY_BITPACKING | |
| int vp8_update_coef_context(VP8_COMP *cpi) | |
| { | |
| int savings = 0; | |
| if (cpi->common.frame_type == KEY_FRAME) | |
| { | |
| /* Reset to default counts/probabilities at key frames */ | |
| vp8_copy(cpi->mb.coef_counts, default_coef_counts); | |
| } | |
| if (cpi->oxcf.error_resilient_mode & VPX_ERROR_RESILIENT_PARTITIONS) | |
| savings += independent_coef_context_savings(cpi); | |
| else | |
| savings += default_coef_context_savings(cpi); | |
| return savings; | |
| } | |
| #endif | |
| void vp8_update_coef_probs(VP8_COMP *cpi) | |
| { | |
| int i = 0; | |
| #if !(CONFIG_REALTIME_ONLY & CONFIG_ONTHEFLY_BITPACKING) | |
| vp8_writer *const w = cpi->bc; | |
| #endif | |
| int savings = 0; | |
| vp8_clear_system_state(); | |
| do | |
| { | |
| int j = 0; | |
| do | |
| { | |
| int k = 0; | |
| int prev_coef_savings[ENTROPY_NODES] = {0}; | |
| if (cpi->oxcf.error_resilient_mode & VPX_ERROR_RESILIENT_PARTITIONS) | |
| { | |
| for (k = 0; k < PREV_COEF_CONTEXTS; ++k) | |
| { | |
| int t; /* token/prob index */ | |
| for (t = 0; t < ENTROPY_NODES; ++t) | |
| { | |
| const unsigned int *ct = cpi->frame_branch_ct [i][j] | |
| [k][t]; | |
| const vp8_prob newp = cpi->frame_coef_probs[i][j][k][t]; | |
| const vp8_prob oldp = cpi->common.fc.coef_probs[i][j] | |
| [k][t]; | |
| const vp8_prob upd = vp8_coef_update_probs[i][j][k][t]; | |
| prev_coef_savings[t] += | |
| prob_update_savings(ct, oldp, newp, upd); | |
| } | |
| } | |
| k = 0; | |
| } | |
| do | |
| { | |
| /* note: use result from vp8_estimate_entropy_savings, so no | |
| * need to call vp8_tree_probs_from_distribution here. | |
| */ | |
| /* at every context */ | |
| /* calc probs and branch cts for this frame only */ | |
| int t = 0; /* token/prob index */ | |
| do | |
| { | |
| const vp8_prob newp = cpi->frame_coef_probs [i][j][k][t]; | |
| vp8_prob *Pold = cpi->common.fc.coef_probs [i][j][k] + t; | |
| const vp8_prob upd = vp8_coef_update_probs [i][j][k][t]; | |
| int s = prev_coef_savings[t]; | |
| int u = 0; | |
| if (!(cpi->oxcf.error_resilient_mode & | |
| VPX_ERROR_RESILIENT_PARTITIONS)) | |
| { | |
| s = prob_update_savings( | |
| cpi->frame_branch_ct [i][j][k][t], | |
| *Pold, newp, upd); | |
| } | |
| if (s > 0) | |
| u = 1; | |
| /* Force updates on key frames if the new is different, | |
| * so that we can be sure we end up with equal probabilities | |
| * over the prev coef contexts. | |
| */ | |
| if ((cpi->oxcf.error_resilient_mode & | |
| VPX_ERROR_RESILIENT_PARTITIONS) && | |
| cpi->common.frame_type == KEY_FRAME && newp != *Pold) | |
| u = 1; | |
| #if CONFIG_REALTIME_ONLY & CONFIG_ONTHEFLY_BITPACKING | |
| cpi->update_probs[i][j][k][t] = u; | |
| #else | |
| vp8_write(w, u, upd); | |
| #endif | |
| #ifdef VP8_ENTROPY_STATS | |
| ++ tree_update_hist [i][j][k][t] [u]; | |
| #endif | |
| if (u) | |
| { | |
| /* send/use new probability */ | |
| *Pold = newp; | |
| #if !(CONFIG_REALTIME_ONLY & CONFIG_ONTHEFLY_BITPACKING) | |
| vp8_write_literal(w, newp, 8); | |
| #endif | |
| savings += s; | |
| } | |
| } | |
| while (++t < ENTROPY_NODES); | |
| /* Accum token counts for generation of default statistics */ | |
| #ifdef VP8_ENTROPY_STATS | |
| t = 0; | |
| do | |
| { | |
| context_counters [i][j][k][t] += cpi->coef_counts [i][j][k][t]; | |
| } | |
| while (++t < MAX_ENTROPY_TOKENS); | |
| #endif | |
| } | |
| while (++k < PREV_COEF_CONTEXTS); | |
| } | |
| while (++j < COEF_BANDS); | |
| } | |
| while (++i < BLOCK_TYPES); | |
| } | |
| #if CONFIG_REALTIME_ONLY & CONFIG_ONTHEFLY_BITPACKING | |
| static void pack_coef_probs(VP8_COMP *cpi) | |
| { | |
| int i = 0; | |
| vp8_writer *const w = cpi->bc; | |
| do | |
| { | |
| int j = 0; | |
| do | |
| { | |
| int k = 0; | |
| do | |
| { | |
| int t = 0; /* token/prob index */ | |
| do | |
| { | |
| const vp8_prob newp = cpi->common.fc.coef_probs [i][j][k][t]; | |
| const vp8_prob upd = vp8_coef_update_probs [i][j][k][t]; | |
| const char u = cpi->update_probs[i][j][k][t] ; | |
| vp8_write(w, u, upd); | |
| if (u) | |
| { | |
| /* send/use new probability */ | |
| vp8_write_literal(w, newp, 8); | |
| } | |
| } | |
| while (++t < ENTROPY_NODES); | |
| } | |
| while (++k < PREV_COEF_CONTEXTS); | |
| } | |
| while (++j < COEF_BANDS); | |
| } | |
| while (++i < BLOCK_TYPES); | |
| } | |
| #endif | |
| #ifdef PACKET_TESTING | |
| FILE *vpxlogc = 0; | |
| #endif | |
| static void put_delta_q(vp8_writer *bc, int delta_q) | |
| { | |
| if (delta_q != 0) | |
| { | |
| vp8_write_bit(bc, 1); | |
| vp8_write_literal(bc, abs(delta_q), 4); | |
| if (delta_q < 0) | |
| vp8_write_bit(bc, 1); | |
| else | |
| vp8_write_bit(bc, 0); | |
| } | |
| else | |
| vp8_write_bit(bc, 0); | |
| } | |
| void vp8_pack_bitstream(VP8_COMP *cpi, unsigned char *dest, unsigned char * dest_end, unsigned long *size) | |
| { | |
| int i, j; | |
| VP8_HEADER oh; | |
| VP8_COMMON *const pc = & cpi->common; | |
| vp8_writer *const bc = cpi->bc; | |
| MACROBLOCKD *const xd = & cpi->mb.e_mbd; | |
| int extra_bytes_packed = 0; | |
| unsigned char *cx_data = dest; | |
| unsigned char *cx_data_end = dest_end; | |
| const int *mb_feature_data_bits; | |
| oh.show_frame = (int) pc->show_frame; | |
| oh.type = (int)pc->frame_type; | |
| oh.version = pc->version; | |
| oh.first_partition_length_in_bytes = 0; | |
| mb_feature_data_bits = vp8_mb_feature_data_bits; | |
| bc[0].error = &pc->error; | |
| validate_buffer(cx_data, 3, cx_data_end, &cpi->common.error); | |
| cx_data += 3; | |
| #if defined(SECTIONBITS_OUTPUT) | |
| Sectionbits[active_section = 1] += sizeof(VP8_HEADER) * 8 * 256; | |
| #endif | |
| /* every keyframe send startcode, width, height, scale factor, clamp | |
| * and color type | |
| */ | |
| if (oh.type == KEY_FRAME) | |
| { | |
| int v; | |
| validate_buffer(cx_data, 7, cx_data_end, &cpi->common.error); | |
| /* Start / synch code */ | |
| cx_data[0] = 0x9D; | |
| cx_data[1] = 0x01; | |
| cx_data[2] = 0x2a; | |
| v = (pc->horiz_scale << 14) | pc->Width; | |
| cx_data[3] = v; | |
| cx_data[4] = v >> 8; | |
| v = (pc->vert_scale << 14) | pc->Height; | |
| cx_data[5] = v; | |
| cx_data[6] = v >> 8; | |
| extra_bytes_packed = 7; | |
| cx_data += extra_bytes_packed ; | |
| vp8_start_encode(bc, cx_data, cx_data_end); | |
| /* signal clr type */ | |
| vp8_write_bit(bc, 0); | |
| vp8_write_bit(bc, pc->clamp_type); | |
| } | |
| else | |
| vp8_start_encode(bc, cx_data, cx_data_end); | |
| /* Signal whether or not Segmentation is enabled */ | |
| vp8_write_bit(bc, xd->segmentation_enabled); | |
| /* Indicate which features are enabled */ | |
| if (xd->segmentation_enabled) | |
| { | |
| /* Signal whether or not the segmentation map is being updated. */ | |
| vp8_write_bit(bc, xd->update_mb_segmentation_map); | |
| vp8_write_bit(bc, xd->update_mb_segmentation_data); | |
| if (xd->update_mb_segmentation_data) | |
| { | |
| signed char Data; | |
| vp8_write_bit(bc, xd->mb_segement_abs_delta); | |
| /* For each segmentation feature (Quant and loop filter level) */ | |
| for (i = 0; i < MB_LVL_MAX; i++) | |
| { | |
| /* For each of the segments */ | |
| for (j = 0; j < MAX_MB_SEGMENTS; j++) | |
| { | |
| Data = xd->segment_feature_data[i][j]; | |
| /* Frame level data */ | |
| if (Data) | |
| { | |
| vp8_write_bit(bc, 1); | |
| if (Data < 0) | |
| { | |
| Data = - Data; | |
| vp8_write_literal(bc, Data, mb_feature_data_bits[i]); | |
| vp8_write_bit(bc, 1); | |
| } | |
| else | |
| { | |
| vp8_write_literal(bc, Data, mb_feature_data_bits[i]); | |
| vp8_write_bit(bc, 0); | |
| } | |
| } | |
| else | |
| vp8_write_bit(bc, 0); | |
| } | |
| } | |
| } | |
| if (xd->update_mb_segmentation_map) | |
| { | |
| /* Write the probs used to decode the segment id for each mb */ | |
| for (i = 0; i < MB_FEATURE_TREE_PROBS; i++) | |
| { | |
| int Data = xd->mb_segment_tree_probs[i]; | |
| if (Data != 255) | |
| { | |
| vp8_write_bit(bc, 1); | |
| vp8_write_literal(bc, Data, 8); | |
| } | |
| else | |
| vp8_write_bit(bc, 0); | |
| } | |
| } | |
| } | |
| vp8_write_bit(bc, pc->filter_type); | |
| vp8_write_literal(bc, pc->filter_level, 6); | |
| vp8_write_literal(bc, pc->sharpness_level, 3); | |
| /* Write out loop filter deltas applied at the MB level based on mode | |
| * or ref frame (if they are enabled). | |
| */ | |
| vp8_write_bit(bc, xd->mode_ref_lf_delta_enabled); | |
| if (xd->mode_ref_lf_delta_enabled) | |
| { | |
| /* Do the deltas need to be updated */ | |
| int send_update = xd->mode_ref_lf_delta_update | |
| || cpi->oxcf.error_resilient_mode; | |
| vp8_write_bit(bc, send_update); | |
| if (send_update) | |
| { | |
| int Data; | |
| /* Send update */ | |
| for (i = 0; i < MAX_REF_LF_DELTAS; i++) | |
| { | |
| Data = xd->ref_lf_deltas[i]; | |
| /* Frame level data */ | |
| if (xd->ref_lf_deltas[i] != xd->last_ref_lf_deltas[i] | |
| || cpi->oxcf.error_resilient_mode) | |
| { | |
| xd->last_ref_lf_deltas[i] = xd->ref_lf_deltas[i]; | |
| vp8_write_bit(bc, 1); | |
| if (Data > 0) | |
| { | |
| vp8_write_literal(bc, (Data & 0x3F), 6); | |
| vp8_write_bit(bc, 0); /* sign */ | |
| } | |
| else | |
| { | |
| Data = -Data; | |
| vp8_write_literal(bc, (Data & 0x3F), 6); | |
| vp8_write_bit(bc, 1); /* sign */ | |
| } | |
| } | |
| else | |
| vp8_write_bit(bc, 0); | |
| } | |
| /* Send update */ | |
| for (i = 0; i < MAX_MODE_LF_DELTAS; i++) | |
| { | |
| Data = xd->mode_lf_deltas[i]; | |
| if (xd->mode_lf_deltas[i] != xd->last_mode_lf_deltas[i] | |
| || cpi->oxcf.error_resilient_mode) | |
| { | |
| xd->last_mode_lf_deltas[i] = xd->mode_lf_deltas[i]; | |
| vp8_write_bit(bc, 1); | |
| if (Data > 0) | |
| { | |
| vp8_write_literal(bc, (Data & 0x3F), 6); | |
| vp8_write_bit(bc, 0); /* sign */ | |
| } | |
| else | |
| { | |
| Data = -Data; | |
| vp8_write_literal(bc, (Data & 0x3F), 6); | |
| vp8_write_bit(bc, 1); /* sign */ | |
| } | |
| } | |
| else | |
| vp8_write_bit(bc, 0); | |
| } | |
| } | |
| } | |
| /* signal here is multi token partition is enabled */ | |
| vp8_write_literal(bc, pc->multi_token_partition, 2); | |
| /* Frame Qbaseline quantizer index */ | |
| vp8_write_literal(bc, pc->base_qindex, 7); | |
| /* Transmit Dc, Second order and Uv quantizer delta information */ | |
| put_delta_q(bc, pc->y1dc_delta_q); | |
| put_delta_q(bc, pc->y2dc_delta_q); | |
| put_delta_q(bc, pc->y2ac_delta_q); | |
| put_delta_q(bc, pc->uvdc_delta_q); | |
| put_delta_q(bc, pc->uvac_delta_q); | |
| /* When there is a key frame all reference buffers are updated using | |
| * the new key frame | |
| */ | |
| if (pc->frame_type != KEY_FRAME) | |
| { | |
| /* Should the GF or ARF be updated using the transmitted frame | |
| * or buffer | |
| */ | |
| vp8_write_bit(bc, pc->refresh_golden_frame); | |
| vp8_write_bit(bc, pc->refresh_alt_ref_frame); | |
| /* If not being updated from current frame should either GF or ARF | |
| * be updated from another buffer | |
| */ | |
| if (!pc->refresh_golden_frame) | |
| vp8_write_literal(bc, pc->copy_buffer_to_gf, 2); | |
| if (!pc->refresh_alt_ref_frame) | |
| vp8_write_literal(bc, pc->copy_buffer_to_arf, 2); | |
| /* Indicate reference frame sign bias for Golden and ARF frames | |
| * (always 0 for last frame buffer) | |
| */ | |
| vp8_write_bit(bc, pc->ref_frame_sign_bias[GOLDEN_FRAME]); | |
| vp8_write_bit(bc, pc->ref_frame_sign_bias[ALTREF_FRAME]); | |
| } | |
| #if !(CONFIG_REALTIME_ONLY & CONFIG_ONTHEFLY_BITPACKING) | |
| if (cpi->oxcf.error_resilient_mode & VPX_ERROR_RESILIENT_PARTITIONS) | |
| { | |
| if (pc->frame_type == KEY_FRAME) | |
| pc->refresh_entropy_probs = 1; | |
| else | |
| pc->refresh_entropy_probs = 0; | |
| } | |
| #endif | |
| vp8_write_bit(bc, pc->refresh_entropy_probs); | |
| if (pc->frame_type != KEY_FRAME) | |
| vp8_write_bit(bc, pc->refresh_last_frame); | |
| #ifdef VP8_ENTROPY_STATS | |
| if (pc->frame_type == INTER_FRAME) | |
| active_section = 0; | |
| else | |
| active_section = 7; | |
| #endif | |
| vp8_clear_system_state(); | |
| #if CONFIG_REALTIME_ONLY & CONFIG_ONTHEFLY_BITPACKING | |
| pack_coef_probs(cpi); | |
| #else | |
| if (pc->refresh_entropy_probs == 0) | |
| { | |
| /* save a copy for later refresh */ | |
| memcpy(&cpi->common.lfc, &cpi->common.fc, sizeof(cpi->common.fc)); | |
| } | |
| vp8_update_coef_probs(cpi); | |
| #endif | |
| #ifdef VP8_ENTROPY_STATS | |
| active_section = 2; | |
| #endif | |
| /* Write out the mb_no_coeff_skip flag */ | |
| vp8_write_bit(bc, pc->mb_no_coeff_skip); | |
| if (pc->frame_type == KEY_FRAME) | |
| { | |
| write_kfmodes(cpi); | |
| #ifdef VP8_ENTROPY_STATS | |
| active_section = 8; | |
| #endif | |
| } | |
| else | |
| { | |
| pack_inter_mode_mvs(cpi); | |
| #ifdef VP8_ENTROPY_STATS | |
| active_section = 1; | |
| #endif | |
| } | |
| vp8_stop_encode(bc); | |
| cx_data += bc->pos; | |
| oh.first_partition_length_in_bytes = cpi->bc->pos; | |
| /* update frame tag */ | |
| { | |
| int v = (oh.first_partition_length_in_bytes << 5) | | |
| (oh.show_frame << 4) | | |
| (oh.version << 1) | | |
| oh.type; | |
| dest[0] = v; | |
| dest[1] = v >> 8; | |
| dest[2] = v >> 16; | |
| } | |
| *size = VP8_HEADER_SIZE + extra_bytes_packed + cpi->bc->pos; | |
| cpi->partition_sz[0] = *size; | |
| #if CONFIG_REALTIME_ONLY & CONFIG_ONTHEFLY_BITPACKING | |
| { | |
| const int num_part = (1 << pc->multi_token_partition); | |
| unsigned char * dp = cpi->partition_d[0] + cpi->partition_sz[0]; | |
| if (num_part > 1) | |
| { | |
| /* write token part sizes (all but last) if more than 1 */ | |
| validate_buffer(dp, 3 * (num_part - 1), cpi->partition_d_end[0], | |
| &pc->error); | |
| cpi->partition_sz[0] += 3*(num_part-1); | |
| for(i = 1; i < num_part; i++) | |
| { | |
| write_partition_size(dp, cpi->partition_sz[i]); | |
| dp += 3; | |
| } | |
| } | |
| if (!cpi->output_partition) | |
| { | |
| /* concatenate partition buffers */ | |
| for(i = 0; i < num_part; i++) | |
| { | |
| memmove(dp, cpi->partition_d[i+1], cpi->partition_sz[i+1]); | |
| cpi->partition_d[i+1] = dp; | |
| dp += cpi->partition_sz[i+1]; | |
| } | |
| } | |
| /* update total size */ | |
| *size = 0; | |
| for(i = 0; i < num_part+1; i++) | |
| { | |
| *size += cpi->partition_sz[i]; | |
| } | |
| } | |
| #else | |
| if (pc->multi_token_partition != ONE_PARTITION) | |
| { | |
| int num_part = 1 << pc->multi_token_partition; | |
| /* partition size table at the end of first partition */ | |
| cpi->partition_sz[0] += 3 * (num_part - 1); | |
| *size += 3 * (num_part - 1); | |
| validate_buffer(cx_data, 3 * (num_part - 1), cx_data_end, | |
| &pc->error); | |
| for(i = 1; i < num_part + 1; i++) | |
| { | |
| cpi->bc[i].error = &pc->error; | |
| } | |
| pack_tokens_into_partitions(cpi, cx_data + 3 * (num_part - 1), | |
| cx_data_end, num_part); | |
| for(i = 1; i < num_part; i++) | |
| { | |
| cpi->partition_sz[i] = cpi->bc[i].pos; | |
| write_partition_size(cx_data, cpi->partition_sz[i]); | |
| cx_data += 3; | |
| *size += cpi->partition_sz[i]; /* add to total */ | |
| } | |
| /* add last partition to total size */ | |
| cpi->partition_sz[i] = cpi->bc[i].pos; | |
| *size += cpi->partition_sz[i]; | |
| } | |
| else | |
| { | |
| bc[1].error = &pc->error; | |
| vp8_start_encode(&cpi->bc[1], cx_data, cx_data_end); | |
| #if CONFIG_MULTITHREAD | |
| if (cpi->b_multi_threaded) | |
| pack_mb_row_tokens(cpi, &cpi->bc[1]); | |
| else | |
| #endif // CONFIG_MULTITHREAD | |
| vp8_pack_tokens(&cpi->bc[1], cpi->tok, cpi->tok_count); | |
| vp8_stop_encode(&cpi->bc[1]); | |
| *size += cpi->bc[1].pos; | |
| cpi->partition_sz[1] = cpi->bc[1].pos; | |
| } | |
| #endif | |
| } | |
| #ifdef VP8_ENTROPY_STATS | |
| void print_tree_update_probs() | |
| { | |
| int i, j, k, l; | |
| FILE *f = fopen("context.c", "a"); | |
| int Sum; | |
| fprintf(f, "\n/* Update probabilities for token entropy tree. */\n\n"); | |
| fprintf(f, "const vp8_prob tree_update_probs[BLOCK_TYPES] [COEF_BANDS] [PREV_COEF_CONTEXTS] [ENTROPY_NODES] = {\n"); | |
| for (i = 0; i < BLOCK_TYPES; i++) | |
| { | |
| fprintf(f, " { \n"); | |
| for (j = 0; j < COEF_BANDS; j++) | |
| { | |
| fprintf(f, " {\n"); | |
| for (k = 0; k < PREV_COEF_CONTEXTS; k++) | |
| { | |
| fprintf(f, " {"); | |
| for (l = 0; l < ENTROPY_NODES; l++) | |
| { | |
| Sum = tree_update_hist[i][j][k][l][0] + tree_update_hist[i][j][k][l][1]; | |
| if (Sum > 0) | |
| { | |
| if (((tree_update_hist[i][j][k][l][0] * 255) / Sum) > 0) | |
| fprintf(f, "%3ld, ", (tree_update_hist[i][j][k][l][0] * 255) / Sum); | |
| else | |
| fprintf(f, "%3ld, ", 1); | |
| } | |
| else | |
| fprintf(f, "%3ld, ", 128); | |
| } | |
| fprintf(f, "},\n"); | |
| } | |
| fprintf(f, " },\n"); | |
| } | |
| fprintf(f, " },\n"); | |
| } | |
| fprintf(f, "};\n"); | |
| fclose(f); | |
| } | |
| #endif |