e8c74e2b70
Consistent with VP8. Change-Id: I8c316ee49f072e15abbb033a80e9c36617891f07
778 lines
23 KiB
C
778 lines
23 KiB
C
/*
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* Copyright (c) 2010 The WebM project authors. All Rights Reserved.
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*
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* Use of this source code is governed by a BSD-style license
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* that can be found in the LICENSE file in the root of the source
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* tree. An additional intellectual property rights grant can be found
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* in the file PATENTS. All contributing project authors may
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* be found in the AUTHORS file in the root of the source tree.
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*/
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#include <math.h>
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#include <stdio.h>
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#include <string.h>
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#include <assert.h>
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#include "vp9/encoder/vp9_onyx_int.h"
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#include "vp9/encoder/vp9_tokenize.h"
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#include "vpx_mem/vpx_mem.h"
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#include "vp9/common/vp9_pred_common.h"
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#include "vp9/common/vp9_seg_common.h"
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#include "vp9/common/vp9_entropy.h"
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/* Global event counters used for accumulating statistics across several
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compressions, then generating vp9_context.c = initial stats. */
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#ifdef ENTROPY_STATS
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vp9_coeff_accum context_counters_4x4[BLOCK_TYPES];
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vp9_coeff_accum context_counters_8x8[BLOCK_TYPES];
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vp9_coeff_accum context_counters_16x16[BLOCK_TYPES];
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vp9_coeff_accum context_counters_32x32[BLOCK_TYPES_32X32];
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extern vp9_coeff_stats tree_update_hist_4x4[BLOCK_TYPES];
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extern vp9_coeff_stats tree_update_hist_8x8[BLOCK_TYPES];
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extern vp9_coeff_stats tree_update_hist_16x16[BLOCK_TYPES];
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extern vp9_coeff_stats tree_update_hist_32x32[BLOCK_TYPES_32X32];
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#endif /* ENTROPY_STATS */
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static TOKENVALUE dct_value_tokens[DCT_MAX_VALUE * 2];
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const TOKENVALUE *vp9_dct_value_tokens_ptr;
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static int dct_value_cost[DCT_MAX_VALUE * 2];
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const int *vp9_dct_value_cost_ptr;
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static void fill_value_tokens() {
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TOKENVALUE *const t = dct_value_tokens + DCT_MAX_VALUE;
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vp9_extra_bit_struct *const e = vp9_extra_bits;
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int i = -DCT_MAX_VALUE;
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int sign = 1;
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do {
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if (!i)
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sign = 0;
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{
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const int a = sign ? -i : i;
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int eb = sign;
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if (a > 4) {
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int j = 4;
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while (++j < 11 && e[j].base_val <= a) {}
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t[i].Token = --j;
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eb |= (a - e[j].base_val) << 1;
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} else
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t[i].Token = a;
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t[i].Extra = eb;
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}
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// initialize the cost for extra bits for all possible coefficient value.
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{
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int cost = 0;
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vp9_extra_bit_struct *p = vp9_extra_bits + t[i].Token;
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if (p->base_val) {
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const int extra = t[i].Extra;
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const int Length = p->Len;
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if (Length)
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cost += treed_cost(p->tree, p->prob, extra >> 1, Length);
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cost += vp9_cost_bit(vp9_prob_half, extra & 1); /* sign */
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dct_value_cost[i + DCT_MAX_VALUE] = cost;
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}
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}
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} while (++i < DCT_MAX_VALUE);
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vp9_dct_value_tokens_ptr = dct_value_tokens + DCT_MAX_VALUE;
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vp9_dct_value_cost_ptr = dct_value_cost + DCT_MAX_VALUE;
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}
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static void tokenize_b(VP9_COMP *cpi,
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MACROBLOCKD *xd,
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const int ib,
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TOKENEXTRA **tp,
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PLANE_TYPE type,
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TX_SIZE tx_size,
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int dry_run) {
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int pt; /* near block/prev token context index */
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int c = 0;
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int recent_energy = 0;
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const BLOCKD * const b = xd->block + ib;
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const int eob = xd->eobs[ib]; /* one beyond last nonzero coeff */
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TOKENEXTRA *t = *tp; /* store tokens starting here */
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int16_t *qcoeff_ptr = b->qcoeff;
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int seg_eob;
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const int segment_id = xd->mode_info_context->mbmi.segment_id;
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const int *scan;
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vp9_coeff_count *counts;
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vp9_coeff_probs *probs;
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const TX_TYPE tx_type = (type == PLANE_TYPE_Y_WITH_DC) ?
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get_tx_type(xd, b) : DCT_DCT;
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const int ref = xd->mode_info_context->mbmi.ref_frame != INTRA_FRAME;
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ENTROPY_CONTEXT *const a = (ENTROPY_CONTEXT *)xd->above_context +
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vp9_block2above[tx_size][ib];
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ENTROPY_CONTEXT *const l = (ENTROPY_CONTEXT *)xd->left_context +
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vp9_block2left[tx_size][ib];
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ENTROPY_CONTEXT a_ec = *a, l_ec = *l;
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ENTROPY_CONTEXT *const a1 = (ENTROPY_CONTEXT *)(&xd->above_context[1]) +
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vp9_block2above[tx_size][ib];
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ENTROPY_CONTEXT *const l1 = (ENTROPY_CONTEXT *)(&xd->left_context[1]) +
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vp9_block2left[tx_size][ib];
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switch (tx_size) {
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default:
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case TX_4X4:
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seg_eob = 16;
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scan = vp9_default_zig_zag1d_4x4;
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if (tx_type != DCT_DCT) {
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if (tx_type == ADST_DCT) {
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scan = vp9_row_scan_4x4;
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} else if (tx_type == DCT_ADST) {
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scan = vp9_col_scan_4x4;
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}
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}
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counts = cpi->coef_counts_4x4;
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probs = cpi->common.fc.coef_probs_4x4;
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break;
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case TX_8X8:
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a_ec = (a[0] + a[1]) != 0;
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l_ec = (l[0] + l[1]) != 0;
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seg_eob = 64;
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scan = vp9_default_zig_zag1d_8x8;
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counts = cpi->coef_counts_8x8;
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probs = cpi->common.fc.coef_probs_8x8;
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break;
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case TX_16X16:
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if (type != PLANE_TYPE_UV) {
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a_ec = (a[0] + a[1] + a[2] + a[3]) != 0;
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l_ec = (l[0] + l[1] + l[2] + l[3]) != 0;
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} else {
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a_ec = (a[0] + a[1] + a1[0] + a1[1]) != 0;
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l_ec = (l[0] + l[1] + l1[0] + l1[1]) != 0;
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}
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seg_eob = 256;
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scan = vp9_default_zig_zag1d_16x16;
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counts = cpi->coef_counts_16x16;
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probs = cpi->common.fc.coef_probs_16x16;
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if (type == PLANE_TYPE_UV) {
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int uv_idx = (ib - 16) >> 2;
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qcoeff_ptr = xd->sb_coeff_data.qcoeff + 1024 + 256 * uv_idx;
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}
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break;
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case TX_32X32:
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a_ec = a[0] + a[1] + a[2] + a[3] +
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a1[0] + a1[1] + a1[2] + a1[3];
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l_ec = l[0] + l[1] + l[2] + l[3] +
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l1[0] + l1[1] + l1[2] + l1[3];
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a_ec = a_ec != 0;
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l_ec = l_ec != 0;
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seg_eob = 1024;
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scan = vp9_default_zig_zag1d_32x32;
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counts = cpi->coef_counts_32x32;
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probs = cpi->common.fc.coef_probs_32x32;
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qcoeff_ptr = xd->sb_coeff_data.qcoeff;
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break;
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}
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VP9_COMBINEENTROPYCONTEXTS(pt, a_ec, l_ec);
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if (vp9_segfeature_active(xd, segment_id, SEG_LVL_SKIP))
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seg_eob = 0;
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do {
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const int band = get_coef_band(tx_size, c);
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int token;
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if (c < eob) {
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const int rc = scan[c];
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const int v = qcoeff_ptr[rc];
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assert(-DCT_MAX_VALUE <= v && v < DCT_MAX_VALUE);
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t->Extra = vp9_dct_value_tokens_ptr[v].Extra;
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token = vp9_dct_value_tokens_ptr[v].Token;
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} else {
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token = DCT_EOB_TOKEN;
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}
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t->Token = token;
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t->context_tree = probs[type][ref][band][pt];
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t->skip_eob_node = (pt == 0) && (band > 0);
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assert(vp9_coef_encodings[t->Token].Len - t->skip_eob_node > 0);
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if (!dry_run) {
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++counts[type][ref][band][pt][token];
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}
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pt = vp9_get_coef_context(&recent_energy, token);
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++t;
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} while (c < eob && ++c < seg_eob);
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*tp = t;
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a_ec = l_ec = (c > 0); /* 0 <-> all coeff data is zero */
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a[0] = a_ec;
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l[0] = l_ec;
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if (tx_size == TX_8X8) {
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a[1] = a_ec;
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l[1] = l_ec;
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} else if (tx_size == TX_16X16) {
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if (type != PLANE_TYPE_UV) {
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a[1] = a[2] = a[3] = a_ec;
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l[1] = l[2] = l[3] = l_ec;
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} else {
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a1[0] = a1[1] = a[1] = a_ec;
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l1[0] = l1[1] = l[1] = l_ec;
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}
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} else if (tx_size == TX_32X32) {
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a[1] = a[2] = a[3] = a_ec;
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l[1] = l[2] = l[3] = l_ec;
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a1[0] = a1[1] = a1[2] = a1[3] = a_ec;
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l1[0] = l1[1] = l1[2] = l1[3] = l_ec;
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}
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}
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int vp9_mby_is_skippable_4x4(MACROBLOCKD *xd) {
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int skip = 1;
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int i = 0;
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for (i = 0; i < 16; i++)
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skip &= (!xd->eobs[i]);
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return skip;
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}
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int vp9_mbuv_is_skippable_4x4(MACROBLOCKD *xd) {
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int skip = 1;
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int i;
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for (i = 16; i < 24; i++)
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skip &= (!xd->eobs[i]);
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return skip;
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}
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static int mb_is_skippable_4x4(MACROBLOCKD *xd) {
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return (vp9_mby_is_skippable_4x4(xd) &
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vp9_mbuv_is_skippable_4x4(xd));
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}
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int vp9_mby_is_skippable_8x8(MACROBLOCKD *xd) {
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int skip = 1;
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int i = 0;
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for (i = 0; i < 16; i += 4)
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skip &= (!xd->eobs[i]);
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return skip;
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}
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int vp9_mbuv_is_skippable_8x8(MACROBLOCKD *xd) {
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return (!xd->eobs[16]) & (!xd->eobs[20]);
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}
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static int mb_is_skippable_8x8(MACROBLOCKD *xd) {
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return (vp9_mby_is_skippable_8x8(xd) &
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vp9_mbuv_is_skippable_8x8(xd));
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}
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static int mb_is_skippable_8x8_4x4uv(MACROBLOCKD *xd) {
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return (vp9_mby_is_skippable_8x8(xd) &
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vp9_mbuv_is_skippable_4x4(xd));
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}
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int vp9_mby_is_skippable_16x16(MACROBLOCKD *xd) {
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int skip = 1;
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skip &= !xd->eobs[0];
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return skip;
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}
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static int mb_is_skippable_16x16(MACROBLOCKD *xd) {
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return (vp9_mby_is_skippable_16x16(xd) & vp9_mbuv_is_skippable_8x8(xd));
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}
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int vp9_sby_is_skippable_32x32(MACROBLOCKD *xd) {
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int skip = 1;
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skip &= !xd->eobs[0];
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return skip;
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}
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int vp9_sbuv_is_skippable_16x16(MACROBLOCKD *xd) {
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return (!xd->eobs[16]) & (!xd->eobs[20]);
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}
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static int sb_is_skippable_32x32(MACROBLOCKD *xd) {
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return vp9_sby_is_skippable_32x32(xd) &&
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vp9_sbuv_is_skippable_16x16(xd);
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}
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void vp9_tokenize_sb(VP9_COMP *cpi,
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MACROBLOCKD *xd,
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TOKENEXTRA **t,
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int dry_run) {
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VP9_COMMON * const cm = &cpi->common;
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MB_MODE_INFO * const mbmi = &xd->mode_info_context->mbmi;
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TOKENEXTRA *t_backup = *t;
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const int mb_skip_context = vp9_get_pred_context(cm, xd, PRED_MBSKIP);
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const int segment_id = mbmi->segment_id;
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const int skip_inc = !vp9_segfeature_active(xd, segment_id, SEG_LVL_SKIP);
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int b;
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mbmi->mb_skip_coeff = sb_is_skippable_32x32(xd);
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if (mbmi->mb_skip_coeff) {
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if (!dry_run)
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cpi->skip_true_count[mb_skip_context] += skip_inc;
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if (!cm->mb_no_coeff_skip) {
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vp9_stuff_sb(cpi, xd, t, dry_run);
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} else {
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vp9_fix_contexts_sb(xd);
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}
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if (dry_run)
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*t = t_backup;
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return;
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}
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if (!dry_run)
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cpi->skip_false_count[mb_skip_context] += skip_inc;
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tokenize_b(cpi, xd, 0, t, PLANE_TYPE_Y_WITH_DC,
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TX_32X32, dry_run);
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for (b = 16; b < 24; b += 4) {
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tokenize_b(cpi, xd, b, t, PLANE_TYPE_UV,
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TX_16X16, dry_run);
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}
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if (dry_run)
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*t = t_backup;
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}
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void vp9_tokenize_mb(VP9_COMP *cpi,
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MACROBLOCKD *xd,
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TOKENEXTRA **t,
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int dry_run) {
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int b;
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int tx_size = xd->mode_info_context->mbmi.txfm_size;
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int mb_skip_context = vp9_get_pred_context(&cpi->common, xd, PRED_MBSKIP);
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TOKENEXTRA *t_backup = *t;
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// If the MB is going to be skipped because of a segment level flag
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// exclude this from the skip count stats used to calculate the
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// transmitted skip probability;
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int skip_inc;
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int segment_id = xd->mode_info_context->mbmi.segment_id;
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if (!vp9_segfeature_active(xd, segment_id, SEG_LVL_SKIP)) {
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skip_inc = 1;
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} else
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skip_inc = 0;
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switch (tx_size) {
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case TX_16X16:
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xd->mode_info_context->mbmi.mb_skip_coeff = mb_is_skippable_16x16(xd);
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break;
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case TX_8X8:
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if (xd->mode_info_context->mbmi.mode == I8X8_PRED ||
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xd->mode_info_context->mbmi.mode == SPLITMV)
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xd->mode_info_context->mbmi.mb_skip_coeff =
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mb_is_skippable_8x8_4x4uv(xd);
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else
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xd->mode_info_context->mbmi.mb_skip_coeff =
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mb_is_skippable_8x8(xd);
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break;
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default:
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xd->mode_info_context->mbmi.mb_skip_coeff =
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mb_is_skippable_4x4(xd);
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break;
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}
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if (xd->mode_info_context->mbmi.mb_skip_coeff) {
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if (!dry_run)
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cpi->skip_true_count[mb_skip_context] += skip_inc;
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if (!cpi->common.mb_no_coeff_skip) {
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vp9_stuff_mb(cpi, xd, t, dry_run);
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} else {
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vp9_reset_mb_tokens_context(xd);
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}
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if (dry_run)
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*t = t_backup;
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return;
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}
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if (!dry_run)
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cpi->skip_false_count[mb_skip_context] += skip_inc;
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if (tx_size == TX_16X16) {
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tokenize_b(cpi, xd, 0, t, PLANE_TYPE_Y_WITH_DC, TX_16X16, dry_run);
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for (b = 16; b < 24; b += 4) {
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tokenize_b(cpi, xd, b, t, PLANE_TYPE_UV, TX_8X8, dry_run);
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}
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} else if (tx_size == TX_8X8) {
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for (b = 0; b < 16; b += 4) {
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tokenize_b(cpi, xd, b, t, PLANE_TYPE_Y_WITH_DC, TX_8X8, dry_run);
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}
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if (xd->mode_info_context->mbmi.mode == I8X8_PRED ||
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xd->mode_info_context->mbmi.mode == SPLITMV) {
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for (b = 16; b < 24; b++) {
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tokenize_b(cpi, xd, b, t, PLANE_TYPE_UV, TX_4X4, dry_run);
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}
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} else {
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for (b = 16; b < 24; b += 4) {
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tokenize_b(cpi, xd, b, t, PLANE_TYPE_UV, TX_8X8, dry_run);
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}
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}
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} else {
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for (b = 0; b < 16; b++)
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tokenize_b(cpi, xd, b, t, PLANE_TYPE_Y_WITH_DC, TX_4X4, dry_run);
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for (b = 16; b < 24; b++)
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tokenize_b(cpi, xd, b, t, PLANE_TYPE_UV, TX_4X4, dry_run);
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}
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if (dry_run)
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*t = t_backup;
|
|
}
|
|
|
|
#ifdef ENTROPY_STATS
|
|
void init_context_counters(void) {
|
|
FILE *f = fopen("context.bin", "rb");
|
|
if (!f) {
|
|
vpx_memset(context_counters_4x4, 0, sizeof(context_counters_4x4));
|
|
vpx_memset(context_counters_8x8, 0, sizeof(context_counters_8x8));
|
|
vpx_memset(context_counters_16x16, 0, sizeof(context_counters_16x16));
|
|
vpx_memset(context_counters_32x32, 0, sizeof(context_counters_32x32));
|
|
} else {
|
|
fread(context_counters_4x4, sizeof(context_counters_4x4), 1, f);
|
|
fread(context_counters_8x8, sizeof(context_counters_8x8), 1, f);
|
|
fread(context_counters_16x16, sizeof(context_counters_16x16), 1, f);
|
|
fread(context_counters_32x32, sizeof(context_counters_32x32), 1, f);
|
|
fclose(f);
|
|
}
|
|
|
|
f = fopen("treeupdate.bin", "rb");
|
|
if (!f) {
|
|
vpx_memset(tree_update_hist_4x4, 0, sizeof(tree_update_hist_4x4));
|
|
vpx_memset(tree_update_hist_8x8, 0, sizeof(tree_update_hist_8x8));
|
|
vpx_memset(tree_update_hist_16x16, 0, sizeof(tree_update_hist_16x16));
|
|
vpx_memset(tree_update_hist_32x32, 0, sizeof(tree_update_hist_32x32));
|
|
} else {
|
|
fread(tree_update_hist_4x4, sizeof(tree_update_hist_4x4), 1, f);
|
|
fread(tree_update_hist_8x8, sizeof(tree_update_hist_8x8), 1, f);
|
|
fread(tree_update_hist_16x16, sizeof(tree_update_hist_16x16), 1, f);
|
|
fread(tree_update_hist_32x32, sizeof(tree_update_hist_32x32), 1, f);
|
|
fclose(f);
|
|
}
|
|
}
|
|
|
|
static void print_counter(FILE *f, vp9_coeff_accum *context_counters,
|
|
int block_types, const char *header) {
|
|
int type, ref, band, pt, t;
|
|
|
|
fprintf(f, "static const vp9_coeff_count %s = {\n", header);
|
|
|
|
#define Comma(X) (X ? "," : "")
|
|
type = 0;
|
|
do {
|
|
ref = 0;
|
|
fprintf(f, "%s\n { /* block Type %d */", Comma(type), type);
|
|
do {
|
|
fprintf(f, "%s\n { /* %s */", Comma(type), ref ? "Inter" : "Intra");
|
|
band = 0;
|
|
do {
|
|
fprintf(f, "%s\n { /* Coeff Band %d */", Comma(band), band);
|
|
pt = 0;
|
|
do {
|
|
fprintf(f, "%s\n {", Comma(pt));
|
|
|
|
t = 0;
|
|
do {
|
|
const int64_t x = context_counters[type][ref][band][pt][t];
|
|
const int y = (int) x;
|
|
|
|
assert(x == (int64_t) y); /* no overflow handling yet */
|
|
fprintf(f, "%s %d", Comma(t), y);
|
|
} while (++t < MAX_ENTROPY_TOKENS);
|
|
fprintf(f, "}");
|
|
} while (++pt < PREV_COEF_CONTEXTS);
|
|
fprintf(f, "\n }");
|
|
} while (++band < COEF_BANDS);
|
|
fprintf(f, "\n }");
|
|
} while (++ref < REF_TYPES);
|
|
fprintf(f, "\n }");
|
|
} while (++type < block_types);
|
|
fprintf(f, "\n};\n");
|
|
}
|
|
|
|
static void print_probs(FILE *f, vp9_coeff_accum *context_counters,
|
|
int block_types, const char *header) {
|
|
int type, ref, band, pt, t;
|
|
|
|
fprintf(f, "static const vp9_coeff_probs %s = {", header);
|
|
|
|
type = 0;
|
|
#define Newline(x, spaces) (x ? " " : "\n" spaces)
|
|
do {
|
|
fprintf(f, "%s%s{ /* block Type %d */",
|
|
Comma(type), Newline(type, " "), type);
|
|
ref = 0;
|
|
do {
|
|
fprintf(f, "%s%s{ /* %s */",
|
|
Comma(band), Newline(band, " "), ref ? "Inter" : "Intra");
|
|
band = 0;
|
|
do {
|
|
fprintf(f, "%s%s{ /* Coeff Band %d */",
|
|
Comma(band), Newline(band, " "), band);
|
|
pt = 0;
|
|
do {
|
|
unsigned int branch_ct[ENTROPY_NODES][2];
|
|
unsigned int coef_counts[MAX_ENTROPY_TOKENS];
|
|
vp9_prob coef_probs[ENTROPY_NODES];
|
|
|
|
for (t = 0; t < MAX_ENTROPY_TOKENS; ++t)
|
|
coef_counts[t] = context_counters[type][ref][band][pt][t];
|
|
vp9_tree_probs_from_distribution(MAX_ENTROPY_TOKENS,
|
|
vp9_coef_encodings, vp9_coef_tree,
|
|
coef_probs, branch_ct, coef_counts);
|
|
fprintf(f, "%s\n {", Comma(pt));
|
|
|
|
t = 0;
|
|
do {
|
|
fprintf(f, "%s %3d", Comma(t), coef_probs[t]);
|
|
} while (++t < ENTROPY_NODES);
|
|
|
|
fprintf(f, " }");
|
|
} while (++pt < PREV_COEF_CONTEXTS);
|
|
fprintf(f, "\n }");
|
|
} while (++band < COEF_BANDS);
|
|
fprintf(f, "\n }");
|
|
} while (++ref < REF_TYPES);
|
|
fprintf(f, "\n }");
|
|
} while (++type < block_types);
|
|
fprintf(f, "\n};\n");
|
|
}
|
|
|
|
void print_context_counters() {
|
|
FILE *f = fopen("vp9_context.c", "w");
|
|
|
|
fprintf(f, "#include \"vp9_entropy.h\"\n");
|
|
fprintf(f, "\n/* *** GENERATED FILE: DO NOT EDIT *** */\n\n");
|
|
|
|
/* print counts */
|
|
print_counter(f, context_counters_4x4, BLOCK_TYPES,
|
|
"vp9_default_coef_counts_4x4[BLOCK_TYPES_4X4]");
|
|
print_counter(f, context_counters_8x8, BLOCK_TYPES,
|
|
"vp9_default_coef_counts_8x8[BLOCK_TYPES_8X8]");
|
|
print_counter(f, context_counters_16x16, BLOCK_TYPES,
|
|
"vp9_default_coef_counts_16x16[BLOCK_TYPES_16X16]");
|
|
print_counter(f, context_counters_32x32, BLOCK_TYPES_32X32,
|
|
"vp9_default_coef_counts_32x32[BLOCK_TYPES_32X32]");
|
|
|
|
/* print coefficient probabilities */
|
|
print_probs(f, context_counters_4x4, BLOCK_TYPES,
|
|
"default_coef_probs_4x4[BLOCK_TYPES_4X4]");
|
|
print_probs(f, context_counters_8x8, BLOCK_TYPES,
|
|
"default_coef_probs_8x8[BLOCK_TYPES_8X8]");
|
|
print_probs(f, context_counters_16x16, BLOCK_TYPES,
|
|
"default_coef_probs_16x16[BLOCK_TYPES_16X16]");
|
|
print_probs(f, context_counters_32x32, BLOCK_TYPES_32X32,
|
|
"default_coef_probs_32x32[BLOCK_TYPES_32X32]");
|
|
|
|
fclose(f);
|
|
|
|
f = fopen("context.bin", "wb");
|
|
fwrite(context_counters_4x4, sizeof(context_counters_4x4), 1, f);
|
|
fwrite(context_counters_8x8, sizeof(context_counters_8x8), 1, f);
|
|
fwrite(context_counters_16x16, sizeof(context_counters_16x16), 1, f);
|
|
fwrite(context_counters_32x32, sizeof(context_counters_32x32), 1, f);
|
|
fclose(f);
|
|
}
|
|
#endif
|
|
|
|
void vp9_tokenize_initialize() {
|
|
fill_value_tokens();
|
|
}
|
|
|
|
static INLINE void stuff_b(VP9_COMP *cpi,
|
|
MACROBLOCKD *xd,
|
|
const int ib,
|
|
TOKENEXTRA **tp,
|
|
PLANE_TYPE type,
|
|
TX_SIZE tx_size,
|
|
int dry_run) {
|
|
vp9_coeff_count *counts;
|
|
vp9_coeff_probs *probs;
|
|
int pt, band;
|
|
TOKENEXTRA *t = *tp;
|
|
const int ref = xd->mode_info_context->mbmi.ref_frame != INTRA_FRAME;
|
|
ENTROPY_CONTEXT *const a = (ENTROPY_CONTEXT *)xd->above_context +
|
|
vp9_block2above[tx_size][ib];
|
|
ENTROPY_CONTEXT *const l = (ENTROPY_CONTEXT *)xd->left_context +
|
|
vp9_block2left[tx_size][ib];
|
|
ENTROPY_CONTEXT a_ec = *a, l_ec = *l;
|
|
ENTROPY_CONTEXT *const a1 = (ENTROPY_CONTEXT *)(&xd->above_context[1]) +
|
|
vp9_block2above[tx_size][ib];
|
|
ENTROPY_CONTEXT *const l1 = (ENTROPY_CONTEXT *)(&xd->left_context[1]) +
|
|
vp9_block2left[tx_size][ib];
|
|
|
|
switch (tx_size) {
|
|
default:
|
|
case TX_4X4:
|
|
counts = cpi->coef_counts_4x4;
|
|
probs = cpi->common.fc.coef_probs_4x4;
|
|
break;
|
|
case TX_8X8:
|
|
a_ec = (a[0] + a[1]) != 0;
|
|
l_ec = (l[0] + l[1]) != 0;
|
|
counts = cpi->coef_counts_8x8;
|
|
probs = cpi->common.fc.coef_probs_8x8;
|
|
break;
|
|
case TX_16X16:
|
|
if (type != PLANE_TYPE_UV) {
|
|
a_ec = (a[0] + a[1] + a[2] + a[3]) != 0;
|
|
l_ec = (l[0] + l[1] + l[2] + l[3]) != 0;
|
|
} else {
|
|
a_ec = (a[0] + a[1] + a1[0] + a1[1]) != 0;
|
|
l_ec = (l[0] + l[1] + l1[0] + l1[1]) != 0;
|
|
}
|
|
counts = cpi->coef_counts_16x16;
|
|
probs = cpi->common.fc.coef_probs_16x16;
|
|
break;
|
|
case TX_32X32:
|
|
a_ec = a[0] + a[1] + a[2] + a[3] +
|
|
a1[0] + a1[1] + a1[2] + a1[3];
|
|
l_ec = l[0] + l[1] + l[2] + l[3] +
|
|
l1[0] + l1[1] + l1[2] + l1[3];
|
|
a_ec = a_ec != 0;
|
|
l_ec = l_ec != 0;
|
|
counts = cpi->coef_counts_32x32;
|
|
probs = cpi->common.fc.coef_probs_32x32;
|
|
break;
|
|
}
|
|
|
|
VP9_COMBINEENTROPYCONTEXTS(pt, a_ec, l_ec);
|
|
|
|
band = get_coef_band(tx_size, 0);
|
|
t->Token = DCT_EOB_TOKEN;
|
|
t->context_tree = probs[type][ref][band][pt];
|
|
t->skip_eob_node = 0;
|
|
++t;
|
|
*tp = t;
|
|
*a = *l = 0;
|
|
if (tx_size == TX_8X8) {
|
|
a[1] = 0;
|
|
l[1] = 0;
|
|
} else if (tx_size == TX_16X16) {
|
|
if (type != PLANE_TYPE_UV) {
|
|
a[1] = a[2] = a[3] = 0;
|
|
l[1] = l[2] = l[3] = 0;
|
|
} else {
|
|
a1[0] = a1[1] = a[1] = a_ec;
|
|
l1[0] = l1[1] = l[1] = l_ec;
|
|
}
|
|
} else if (tx_size == TX_32X32) {
|
|
a[1] = a[2] = a[3] = a_ec;
|
|
l[1] = l[2] = l[3] = l_ec;
|
|
a1[0] = a1[1] = a1[2] = a1[3] = a_ec;
|
|
l1[0] = l1[1] = l1[2] = l1[3] = l_ec;
|
|
}
|
|
|
|
if (!dry_run) {
|
|
++counts[type][ref][band][pt][DCT_EOB_TOKEN];
|
|
}
|
|
}
|
|
|
|
static void stuff_mb_8x8(VP9_COMP *cpi, MACROBLOCKD *xd,
|
|
TOKENEXTRA **t, int dry_run) {
|
|
int b;
|
|
|
|
for (b = 0; b < 16; b += 4)
|
|
stuff_b(cpi, xd, b, t, PLANE_TYPE_Y_WITH_DC, TX_8X8, dry_run);
|
|
for (b = 16; b < 24; b += 4)
|
|
stuff_b(cpi, xd, b, t, PLANE_TYPE_UV, TX_8X8, dry_run);
|
|
}
|
|
|
|
static void stuff_mb_16x16(VP9_COMP *cpi, MACROBLOCKD *xd,
|
|
TOKENEXTRA **t, int dry_run) {
|
|
int b;
|
|
stuff_b(cpi, xd, 0, t, PLANE_TYPE_Y_WITH_DC, TX_16X16, dry_run);
|
|
|
|
for (b = 16; b < 24; b += 4) {
|
|
stuff_b(cpi, xd, b, t, PLANE_TYPE_UV, TX_8X8, dry_run);
|
|
}
|
|
}
|
|
|
|
static void stuff_mb_4x4(VP9_COMP *cpi, MACROBLOCKD *xd,
|
|
TOKENEXTRA **t, int dry_run) {
|
|
int b;
|
|
|
|
for (b = 0; b < 16; b++)
|
|
stuff_b(cpi, xd, b, t, PLANE_TYPE_Y_WITH_DC, TX_4X4, dry_run);
|
|
for (b = 16; b < 24; b++)
|
|
stuff_b(cpi, xd, b, t, PLANE_TYPE_UV, TX_4X4, dry_run);
|
|
}
|
|
|
|
static void stuff_mb_8x8_4x4uv(VP9_COMP *cpi, MACROBLOCKD *xd,
|
|
TOKENEXTRA **t, int dry_run) {
|
|
int b;
|
|
|
|
for (b = 0; b < 16; b += 4)
|
|
stuff_b(cpi, xd, b, t, PLANE_TYPE_Y_WITH_DC, TX_8X8, dry_run);
|
|
for (b = 16; b < 24; b++)
|
|
stuff_b(cpi, xd, b, t, PLANE_TYPE_UV, TX_4X4, dry_run);
|
|
}
|
|
|
|
void vp9_stuff_mb(VP9_COMP *cpi, MACROBLOCKD *xd, TOKENEXTRA **t, int dry_run) {
|
|
TX_SIZE tx_size = xd->mode_info_context->mbmi.txfm_size;
|
|
TOKENEXTRA * const t_backup = *t;
|
|
|
|
if (tx_size == TX_16X16) {
|
|
stuff_mb_16x16(cpi, xd, t, dry_run);
|
|
} else if (tx_size == TX_8X8) {
|
|
if (xd->mode_info_context->mbmi.mode == I8X8_PRED ||
|
|
xd->mode_info_context->mbmi.mode == SPLITMV) {
|
|
stuff_mb_8x8_4x4uv(cpi, xd, t, dry_run);
|
|
} else {
|
|
stuff_mb_8x8(cpi, xd, t, dry_run);
|
|
}
|
|
} else {
|
|
stuff_mb_4x4(cpi, xd, t, dry_run);
|
|
}
|
|
|
|
if (dry_run) {
|
|
*t = t_backup;
|
|
}
|
|
}
|
|
|
|
static void stuff_sb_32x32(VP9_COMP *cpi, MACROBLOCKD *xd,
|
|
TOKENEXTRA **t, int dry_run) {
|
|
int b;
|
|
|
|
stuff_b(cpi, xd, 0, t, PLANE_TYPE_Y_WITH_DC, TX_32X32, dry_run);
|
|
for (b = 16; b < 24; b += 4) {
|
|
stuff_b(cpi, xd, b, t, PLANE_TYPE_UV, TX_16X16, dry_run);
|
|
}
|
|
}
|
|
|
|
void vp9_stuff_sb(VP9_COMP *cpi, MACROBLOCKD *xd, TOKENEXTRA **t, int dry_run) {
|
|
TOKENEXTRA * const t_backup = *t;
|
|
|
|
stuff_sb_32x32(cpi, xd, t, dry_run);
|
|
|
|
if (dry_run) {
|
|
*t = t_backup;
|
|
}
|
|
}
|
|
|
|
void vp9_fix_contexts_sb(MACROBLOCKD *xd) {
|
|
vpx_memset(xd->above_context, 0, sizeof(ENTROPY_CONTEXT_PLANES) * 2);
|
|
vpx_memset(xd->left_context, 0, sizeof(ENTROPY_CONTEXT_PLANES) * 2);
|
|
}
|