vpx/vp9/common/vp9_entropymode.c
Yaowu Xu 896d79a57e Removed the reset of mode_info from previous frame
Prior to this commit, both encoder and decoder reset mode/mv info from
previous frame in error resilient mode to ensure bitstreams are able to
decode when there is loss of frame in decoder side. However, this is
not necessary. This commit changed to remove the reset, so encoder can
continue to use mode/mv/partition information from previously encoded
frame without affecting decodeablilty under loss of frame.

Change-Id: I0279f862900dc647fb471ae3389770bb1b9f454f
2014-02-13 12:48:08 -08:00

479 lines
20 KiB
C

/*
* 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 "vpx_mem/vpx_mem.h"
#include "vp9/common/vp9_alloccommon.h"
#include "vp9/common/vp9_onyxc_int.h"
#include "vp9/common/vp9_seg_common.h"
const vp9_prob vp9_kf_y_mode_prob[INTRA_MODES][INTRA_MODES][INTRA_MODES - 1] = {
{ // above = dc
{ 137, 30, 42, 148, 151, 207, 70, 52, 91 }, // left = dc
{ 92, 45, 102, 136, 116, 180, 74, 90, 100 }, // left = v
{ 73, 32, 19, 187, 222, 215, 46, 34, 100 }, // left = h
{ 91, 30, 32, 116, 121, 186, 93, 86, 94 }, // left = d45
{ 72, 35, 36, 149, 68, 206, 68, 63, 105 }, // left = d135
{ 73, 31, 28, 138, 57, 124, 55, 122, 151 }, // left = d117
{ 67, 23, 21, 140, 126, 197, 40, 37, 171 }, // left = d153
{ 86, 27, 28, 128, 154, 212, 45, 43, 53 }, // left = d207
{ 74, 32, 27, 107, 86, 160, 63, 134, 102 }, // left = d63
{ 59, 67, 44, 140, 161, 202, 78, 67, 119 } // left = tm
}, { // above = v
{ 63, 36, 126, 146, 123, 158, 60, 90, 96 }, // left = dc
{ 43, 46, 168, 134, 107, 128, 69, 142, 92 }, // left = v
{ 44, 29, 68, 159, 201, 177, 50, 57, 77 }, // left = h
{ 58, 38, 76, 114, 97, 172, 78, 133, 92 }, // left = d45
{ 46, 41, 76, 140, 63, 184, 69, 112, 57 }, // left = d135
{ 38, 32, 85, 140, 46, 112, 54, 151, 133 }, // left = d117
{ 39, 27, 61, 131, 110, 175, 44, 75, 136 }, // left = d153
{ 52, 30, 74, 113, 130, 175, 51, 64, 58 }, // left = d207
{ 47, 35, 80, 100, 74, 143, 64, 163, 74 }, // left = d63
{ 36, 61, 116, 114, 128, 162, 80, 125, 82 } // left = tm
}, { // above = h
{ 82, 26, 26, 171, 208, 204, 44, 32, 105 }, // left = dc
{ 55, 44, 68, 166, 179, 192, 57, 57, 108 }, // left = v
{ 42, 26, 11, 199, 241, 228, 23, 15, 85 }, // left = h
{ 68, 42, 19, 131, 160, 199, 55, 52, 83 }, // left = d45
{ 58, 50, 25, 139, 115, 232, 39, 52, 118 }, // left = d135
{ 50, 35, 33, 153, 104, 162, 64, 59, 131 }, // left = d117
{ 44, 24, 16, 150, 177, 202, 33, 19, 156 }, // left = d153
{ 55, 27, 12, 153, 203, 218, 26, 27, 49 }, // left = d207
{ 53, 49, 21, 110, 116, 168, 59, 80, 76 }, // left = d63
{ 38, 72, 19, 168, 203, 212, 50, 50, 107 } // left = tm
}, { // above = d45
{ 103, 26, 36, 129, 132, 201, 83, 80, 93 }, // left = dc
{ 59, 38, 83, 112, 103, 162, 98, 136, 90 }, // left = v
{ 62, 30, 23, 158, 200, 207, 59, 57, 50 }, // left = h
{ 67, 30, 29, 84, 86, 191, 102, 91, 59 }, // left = d45
{ 60, 32, 33, 112, 71, 220, 64, 89, 104 }, // left = d135
{ 53, 26, 34, 130, 56, 149, 84, 120, 103 }, // left = d117
{ 53, 21, 23, 133, 109, 210, 56, 77, 172 }, // left = d153
{ 77, 19, 29, 112, 142, 228, 55, 66, 36 }, // left = d207
{ 61, 29, 29, 93, 97, 165, 83, 175, 162 }, // left = d63
{ 47, 47, 43, 114, 137, 181, 100, 99, 95 } // left = tm
}, { // above = d135
{ 69, 23, 29, 128, 83, 199, 46, 44, 101 }, // left = dc
{ 53, 40, 55, 139, 69, 183, 61, 80, 110 }, // left = v
{ 40, 29, 19, 161, 180, 207, 43, 24, 91 }, // left = h
{ 60, 34, 19, 105, 61, 198, 53, 64, 89 }, // left = d45
{ 52, 31, 22, 158, 40, 209, 58, 62, 89 }, // left = d135
{ 44, 31, 29, 147, 46, 158, 56, 102, 198 }, // left = d117
{ 35, 19, 12, 135, 87, 209, 41, 45, 167 }, // left = d153
{ 55, 25, 21, 118, 95, 215, 38, 39, 66 }, // left = d207
{ 51, 38, 25, 113, 58, 164, 70, 93, 97 }, // left = d63
{ 47, 54, 34, 146, 108, 203, 72, 103, 151 } // left = tm
}, { // above = d117
{ 64, 19, 37, 156, 66, 138, 49, 95, 133 }, // left = dc
{ 46, 27, 80, 150, 55, 124, 55, 121, 135 }, // left = v
{ 36, 23, 27, 165, 149, 166, 54, 64, 118 }, // left = h
{ 53, 21, 36, 131, 63, 163, 60, 109, 81 }, // left = d45
{ 40, 26, 35, 154, 40, 185, 51, 97, 123 }, // left = d135
{ 35, 19, 34, 179, 19, 97, 48, 129, 124 }, // left = d117
{ 36, 20, 26, 136, 62, 164, 33, 77, 154 }, // left = d153
{ 45, 18, 32, 130, 90, 157, 40, 79, 91 }, // left = d207
{ 45, 26, 28, 129, 45, 129, 49, 147, 123 }, // left = d63
{ 38, 44, 51, 136, 74, 162, 57, 97, 121 } // left = tm
}, { // above = d153
{ 75, 17, 22, 136, 138, 185, 32, 34, 166 }, // left = dc
{ 56, 39, 58, 133, 117, 173, 48, 53, 187 }, // left = v
{ 35, 21, 12, 161, 212, 207, 20, 23, 145 }, // left = h
{ 56, 29, 19, 117, 109, 181, 55, 68, 112 }, // left = d45
{ 47, 29, 17, 153, 64, 220, 59, 51, 114 }, // left = d135
{ 46, 16, 24, 136, 76, 147, 41, 64, 172 }, // left = d117
{ 34, 17, 11, 108, 152, 187, 13, 15, 209 }, // left = d153
{ 51, 24, 14, 115, 133, 209, 32, 26, 104 }, // left = d207
{ 55, 30, 18, 122, 79, 179, 44, 88, 116 }, // left = d63
{ 37, 49, 25, 129, 168, 164, 41, 54, 148 } // left = tm
}, { // above = d207
{ 82, 22, 32, 127, 143, 213, 39, 41, 70 }, // left = dc
{ 62, 44, 61, 123, 105, 189, 48, 57, 64 }, // left = v
{ 47, 25, 17, 175, 222, 220, 24, 30, 86 }, // left = h
{ 68, 36, 17, 106, 102, 206, 59, 74, 74 }, // left = d45
{ 57, 39, 23, 151, 68, 216, 55, 63, 58 }, // left = d135
{ 49, 30, 35, 141, 70, 168, 82, 40, 115 }, // left = d117
{ 51, 25, 15, 136, 129, 202, 38, 35, 139 }, // left = d153
{ 68, 26, 16, 111, 141, 215, 29, 28, 28 }, // left = d207
{ 59, 39, 19, 114, 75, 180, 77, 104, 42 }, // left = d63
{ 40, 61, 26, 126, 152, 206, 61, 59, 93 } // left = tm
}, { // above = d63
{ 78, 23, 39, 111, 117, 170, 74, 124, 94 }, // left = dc
{ 48, 34, 86, 101, 92, 146, 78, 179, 134 }, // left = v
{ 47, 22, 24, 138, 187, 178, 68, 69, 59 }, // left = h
{ 56, 25, 33, 105, 112, 187, 95, 177, 129 }, // left = d45
{ 48, 31, 27, 114, 63, 183, 82, 116, 56 }, // left = d135
{ 43, 28, 37, 121, 63, 123, 61, 192, 169 }, // left = d117
{ 42, 17, 24, 109, 97, 177, 56, 76, 122 }, // left = d153
{ 58, 18, 28, 105, 139, 182, 70, 92, 63 }, // left = d207
{ 46, 23, 32, 74, 86, 150, 67, 183, 88 }, // left = d63
{ 36, 38, 48, 92, 122, 165, 88, 137, 91 } // left = tm
}, { // above = tm
{ 65, 70, 60, 155, 159, 199, 61, 60, 81 }, // left = dc
{ 44, 78, 115, 132, 119, 173, 71, 112, 93 }, // left = v
{ 39, 38, 21, 184, 227, 206, 42, 32, 64 }, // left = h
{ 58, 47, 36, 124, 137, 193, 80, 82, 78 }, // left = d45
{ 49, 50, 35, 144, 95, 205, 63, 78, 59 }, // left = d135
{ 41, 53, 52, 148, 71, 142, 65, 128, 51 }, // left = d117
{ 40, 36, 28, 143, 143, 202, 40, 55, 137 }, // left = d153
{ 52, 34, 29, 129, 183, 227, 42, 35, 43 }, // left = d207
{ 42, 44, 44, 104, 105, 164, 64, 130, 80 }, // left = d63
{ 43, 81, 53, 140, 169, 204, 68, 84, 72 } // left = tm
}
};
const vp9_prob vp9_kf_uv_mode_prob[INTRA_MODES][INTRA_MODES - 1] = {
{ 144, 11, 54, 157, 195, 130, 46, 58, 108 }, // y = dc
{ 118, 15, 123, 148, 131, 101, 44, 93, 131 }, // y = v
{ 113, 12, 23, 188, 226, 142, 26, 32, 125 }, // y = h
{ 120, 11, 50, 123, 163, 135, 64, 77, 103 }, // y = d45
{ 113, 9, 36, 155, 111, 157, 32, 44, 161 }, // y = d135
{ 116, 9, 55, 176, 76, 96, 37, 61, 149 }, // y = d117
{ 115, 9, 28, 141, 161, 167, 21, 25, 193 }, // y = d153
{ 120, 12, 32, 145, 195, 142, 32, 38, 86 }, // y = d207
{ 116, 12, 64, 120, 140, 125, 49, 115, 121 }, // y = d63
{ 102, 19, 66, 162, 182, 122, 35, 59, 128 } // y = tm
};
static const vp9_prob default_if_y_probs[BLOCK_SIZE_GROUPS][INTRA_MODES - 1] = {
{ 65, 32, 18, 144, 162, 194, 41, 51, 98 }, // block_size < 8x8
{ 132, 68, 18, 165, 217, 196, 45, 40, 78 }, // block_size < 16x16
{ 173, 80, 19, 176, 240, 193, 64, 35, 46 }, // block_size < 32x32
{ 221, 135, 38, 194, 248, 121, 96, 85, 29 } // block_size >= 32x32
};
static const vp9_prob default_if_uv_probs[INTRA_MODES][INTRA_MODES - 1] = {
{ 120, 7, 76, 176, 208, 126, 28, 54, 103 }, // y = dc
{ 48, 12, 154, 155, 139, 90, 34, 117, 119 }, // y = v
{ 67, 6, 25, 204, 243, 158, 13, 21, 96 }, // y = h
{ 97, 5, 44, 131, 176, 139, 48, 68, 97 }, // y = d45
{ 83, 5, 42, 156, 111, 152, 26, 49, 152 }, // y = d135
{ 80, 5, 58, 178, 74, 83, 33, 62, 145 }, // y = d117
{ 86, 5, 32, 154, 192, 168, 14, 22, 163 }, // y = d153
{ 85, 5, 32, 156, 216, 148, 19, 29, 73 }, // y = d207
{ 77, 7, 64, 116, 132, 122, 37, 126, 120 }, // y = d63
{ 101, 21, 107, 181, 192, 103, 19, 67, 125 } // y = tm
};
const vp9_prob vp9_kf_partition_probs[PARTITION_CONTEXTS]
[PARTITION_TYPES - 1] = {
// 8x8 -> 4x4
{ 158, 97, 94 }, // a/l both not split
{ 93, 24, 99 }, // a split, l not split
{ 85, 119, 44 }, // l split, a not split
{ 62, 59, 67 }, // a/l both split
// 16x16 -> 8x8
{ 149, 53, 53 }, // a/l both not split
{ 94, 20, 48 }, // a split, l not split
{ 83, 53, 24 }, // l split, a not split
{ 52, 18, 18 }, // a/l both split
// 32x32 -> 16x16
{ 150, 40, 39 }, // a/l both not split
{ 78, 12, 26 }, // a split, l not split
{ 67, 33, 11 }, // l split, a not split
{ 24, 7, 5 }, // a/l both split
// 64x64 -> 32x32
{ 174, 35, 49 }, // a/l both not split
{ 68, 11, 27 }, // a split, l not split
{ 57, 15, 9 }, // l split, a not split
{ 12, 3, 3 }, // a/l both split
};
static const vp9_prob default_partition_probs[PARTITION_CONTEXTS]
[PARTITION_TYPES - 1] = {
// 8x8 -> 4x4
{ 199, 122, 141 }, // a/l both not split
{ 147, 63, 159 }, // a split, l not split
{ 148, 133, 118 }, // l split, a not split
{ 121, 104, 114 }, // a/l both split
// 16x16 -> 8x8
{ 174, 73, 87 }, // a/l both not split
{ 92, 41, 83 }, // a split, l not split
{ 82, 99, 50 }, // l split, a not split
{ 53, 39, 39 }, // a/l both split
// 32x32 -> 16x16
{ 177, 58, 59 }, // a/l both not split
{ 68, 26, 63 }, // a split, l not split
{ 52, 79, 25 }, // l split, a not split
{ 17, 14, 12 }, // a/l both split
// 64x64 -> 32x32
{ 222, 34, 30 }, // a/l both not split
{ 72, 16, 44 }, // a split, l not split
{ 58, 32, 12 }, // l split, a not split
{ 10, 7, 6 }, // a/l both split
};
static const vp9_prob default_inter_mode_probs[INTER_MODE_CONTEXTS]
[INTER_MODES - 1] = {
{2, 173, 34}, // 0 = both zero mv
{7, 145, 85}, // 1 = one zero mv + one a predicted mv
{7, 166, 63}, // 2 = two predicted mvs
{7, 94, 66}, // 3 = one predicted/zero and one new mv
{8, 64, 46}, // 4 = two new mvs
{17, 81, 31}, // 5 = one intra neighbour + x
{25, 29, 30}, // 6 = two intra neighbours
};
/* Array indices are identical to previously-existing INTRAMODECONTEXTNODES. */
const vp9_tree_index vp9_intra_mode_tree[TREE_SIZE(INTRA_MODES)] = {
-DC_PRED, 2, /* 0 = DC_NODE */
-TM_PRED, 4, /* 1 = TM_NODE */
-V_PRED, 6, /* 2 = V_NODE */
8, 12, /* 3 = COM_NODE */
-H_PRED, 10, /* 4 = H_NODE */
-D135_PRED, -D117_PRED, /* 5 = D135_NODE */
-D45_PRED, 14, /* 6 = D45_NODE */
-D63_PRED, 16, /* 7 = D63_NODE */
-D153_PRED, -D207_PRED /* 8 = D153_NODE */
};
const vp9_tree_index vp9_inter_mode_tree[TREE_SIZE(INTER_MODES)] = {
-INTER_OFFSET(ZEROMV), 2,
-INTER_OFFSET(NEARESTMV), 4,
-INTER_OFFSET(NEARMV), -INTER_OFFSET(NEWMV)
};
const vp9_tree_index vp9_partition_tree[TREE_SIZE(PARTITION_TYPES)] = {
-PARTITION_NONE, 2,
-PARTITION_HORZ, 4,
-PARTITION_VERT, -PARTITION_SPLIT
};
static const vp9_prob default_intra_inter_p[INTRA_INTER_CONTEXTS] = {
9, 102, 187, 225
};
static const vp9_prob default_comp_inter_p[COMP_INTER_CONTEXTS] = {
239, 183, 119, 96, 41
};
static const vp9_prob default_comp_ref_p[REF_CONTEXTS] = {
50, 126, 123, 221, 226
};
static const vp9_prob default_single_ref_p[REF_CONTEXTS][2] = {
{ 33, 16 },
{ 77, 74 },
{ 142, 142 },
{ 172, 170 },
{ 238, 247 }
};
static const struct tx_probs default_tx_probs = {
{ { 3, 136, 37 },
{ 5, 52, 13 } },
{ { 20, 152 },
{ 15, 101 } },
{ { 100 },
{ 66 } }
};
void tx_counts_to_branch_counts_32x32(const unsigned int *tx_count_32x32p,
unsigned int (*ct_32x32p)[2]) {
ct_32x32p[0][0] = tx_count_32x32p[TX_4X4];
ct_32x32p[0][1] = tx_count_32x32p[TX_8X8] +
tx_count_32x32p[TX_16X16] +
tx_count_32x32p[TX_32X32];
ct_32x32p[1][0] = tx_count_32x32p[TX_8X8];
ct_32x32p[1][1] = tx_count_32x32p[TX_16X16] +
tx_count_32x32p[TX_32X32];
ct_32x32p[2][0] = tx_count_32x32p[TX_16X16];
ct_32x32p[2][1] = tx_count_32x32p[TX_32X32];
}
void tx_counts_to_branch_counts_16x16(const unsigned int *tx_count_16x16p,
unsigned int (*ct_16x16p)[2]) {
ct_16x16p[0][0] = tx_count_16x16p[TX_4X4];
ct_16x16p[0][1] = tx_count_16x16p[TX_8X8] + tx_count_16x16p[TX_16X16];
ct_16x16p[1][0] = tx_count_16x16p[TX_8X8];
ct_16x16p[1][1] = tx_count_16x16p[TX_16X16];
}
void tx_counts_to_branch_counts_8x8(const unsigned int *tx_count_8x8p,
unsigned int (*ct_8x8p)[2]) {
ct_8x8p[0][0] = tx_count_8x8p[TX_4X4];
ct_8x8p[0][1] = tx_count_8x8p[TX_8X8];
}
static const vp9_prob default_skip_probs[SKIP_CONTEXTS] = {
192, 128, 64
};
static const vp9_prob default_switchable_interp_prob[SWITCHABLE_FILTER_CONTEXTS]
[SWITCHABLE_FILTERS - 1] = {
{ 235, 162, },
{ 36, 255, },
{ 34, 3, },
{ 149, 144, },
};
void vp9_init_mbmode_probs(VP9_COMMON *cm) {
vp9_copy(cm->fc.uv_mode_prob, default_if_uv_probs);
vp9_copy(cm->fc.y_mode_prob, default_if_y_probs);
vp9_copy(cm->fc.switchable_interp_prob, default_switchable_interp_prob);
vp9_copy(cm->fc.partition_prob, default_partition_probs);
vp9_copy(cm->fc.intra_inter_prob, default_intra_inter_p);
vp9_copy(cm->fc.comp_inter_prob, default_comp_inter_p);
vp9_copy(cm->fc.comp_ref_prob, default_comp_ref_p);
vp9_copy(cm->fc.single_ref_prob, default_single_ref_p);
cm->fc.tx_probs = default_tx_probs;
vp9_copy(cm->fc.skip_probs, default_skip_probs);
vp9_copy(cm->fc.inter_mode_probs, default_inter_mode_probs);
}
const vp9_tree_index vp9_switchable_interp_tree
[TREE_SIZE(SWITCHABLE_FILTERS)] = {
-EIGHTTAP, 2,
-EIGHTTAP_SMOOTH, -EIGHTTAP_SHARP
};
#define COUNT_SAT 20
#define MAX_UPDATE_FACTOR 128
static int adapt_prob(vp9_prob pre_prob, const unsigned int ct[2]) {
return merge_probs(pre_prob, ct, COUNT_SAT, MAX_UPDATE_FACTOR);
}
static void adapt_probs(const vp9_tree_index *tree,
const vp9_prob *pre_probs, const unsigned int *counts,
vp9_prob *probs) {
vp9_tree_merge_probs(tree, pre_probs, counts, COUNT_SAT, MAX_UPDATE_FACTOR,
probs);
}
void vp9_adapt_mode_probs(VP9_COMMON *cm) {
int i, j;
FRAME_CONTEXT *fc = &cm->fc;
const FRAME_CONTEXT *pre_fc = &cm->frame_contexts[cm->frame_context_idx];
const FRAME_COUNTS *counts = &cm->counts;
for (i = 0; i < INTRA_INTER_CONTEXTS; i++)
fc->intra_inter_prob[i] = adapt_prob(pre_fc->intra_inter_prob[i],
counts->intra_inter[i]);
for (i = 0; i < COMP_INTER_CONTEXTS; i++)
fc->comp_inter_prob[i] = adapt_prob(pre_fc->comp_inter_prob[i],
counts->comp_inter[i]);
for (i = 0; i < REF_CONTEXTS; i++)
fc->comp_ref_prob[i] = adapt_prob(pre_fc->comp_ref_prob[i],
counts->comp_ref[i]);
for (i = 0; i < REF_CONTEXTS; i++)
for (j = 0; j < 2; j++)
fc->single_ref_prob[i][j] = adapt_prob(pre_fc->single_ref_prob[i][j],
counts->single_ref[i][j]);
for (i = 0; i < INTER_MODE_CONTEXTS; i++)
adapt_probs(vp9_inter_mode_tree, pre_fc->inter_mode_probs[i],
counts->inter_mode[i], fc->inter_mode_probs[i]);
for (i = 0; i < BLOCK_SIZE_GROUPS; i++)
adapt_probs(vp9_intra_mode_tree, pre_fc->y_mode_prob[i],
counts->y_mode[i], fc->y_mode_prob[i]);
for (i = 0; i < INTRA_MODES; ++i)
adapt_probs(vp9_intra_mode_tree, pre_fc->uv_mode_prob[i],
counts->uv_mode[i], fc->uv_mode_prob[i]);
for (i = 0; i < PARTITION_CONTEXTS; i++)
adapt_probs(vp9_partition_tree, pre_fc->partition_prob[i],
counts->partition[i], fc->partition_prob[i]);
if (cm->interp_filter == SWITCHABLE) {
for (i = 0; i < SWITCHABLE_FILTER_CONTEXTS; i++)
adapt_probs(vp9_switchable_interp_tree, pre_fc->switchable_interp_prob[i],
counts->switchable_interp[i], fc->switchable_interp_prob[i]);
}
if (cm->tx_mode == TX_MODE_SELECT) {
int j;
unsigned int branch_ct_8x8p[TX_SIZES - 3][2];
unsigned int branch_ct_16x16p[TX_SIZES - 2][2];
unsigned int branch_ct_32x32p[TX_SIZES - 1][2];
for (i = 0; i < TX_SIZE_CONTEXTS; ++i) {
tx_counts_to_branch_counts_8x8(counts->tx.p8x8[i], branch_ct_8x8p);
for (j = 0; j < TX_SIZES - 3; ++j)
fc->tx_probs.p8x8[i][j] = adapt_prob(pre_fc->tx_probs.p8x8[i][j],
branch_ct_8x8p[j]);
tx_counts_to_branch_counts_16x16(counts->tx.p16x16[i], branch_ct_16x16p);
for (j = 0; j < TX_SIZES - 2; ++j)
fc->tx_probs.p16x16[i][j] = adapt_prob(pre_fc->tx_probs.p16x16[i][j],
branch_ct_16x16p[j]);
tx_counts_to_branch_counts_32x32(counts->tx.p32x32[i], branch_ct_32x32p);
for (j = 0; j < TX_SIZES - 1; ++j)
fc->tx_probs.p32x32[i][j] = adapt_prob(pre_fc->tx_probs.p32x32[i][j],
branch_ct_32x32p[j]);
}
}
for (i = 0; i < SKIP_CONTEXTS; ++i)
fc->skip_probs[i] = adapt_prob(pre_fc->skip_probs[i], counts->skip[i]);
}
static void set_default_lf_deltas(struct loopfilter *lf) {
lf->mode_ref_delta_enabled = 1;
lf->mode_ref_delta_update = 1;
lf->ref_deltas[INTRA_FRAME] = 1;
lf->ref_deltas[LAST_FRAME] = 0;
lf->ref_deltas[GOLDEN_FRAME] = -1;
lf->ref_deltas[ALTREF_FRAME] = -1;
lf->mode_deltas[0] = 0;
lf->mode_deltas[1] = 0;
}
void vp9_setup_past_independence(VP9_COMMON *cm) {
// Reset the segment feature data to the default stats:
// Features disabled, 0, with delta coding (Default state).
struct loopfilter *const lf = &cm->lf;
int i;
vp9_clearall_segfeatures(&cm->seg);
cm->seg.abs_delta = SEGMENT_DELTADATA;
if (cm->last_frame_seg_map)
vpx_memset(cm->last_frame_seg_map, 0, (cm->mi_rows * cm->mi_cols));
// Reset the mode ref deltas for loop filter
vp9_zero(lf->last_ref_deltas);
vp9_zero(lf->last_mode_deltas);
set_default_lf_deltas(lf);
// To force update of the sharpness
lf->last_sharpness_level = -1;
vp9_default_coef_probs(cm);
vp9_init_mbmode_probs(cm);
vp9_init_mv_probs(cm);
if (cm->frame_type == KEY_FRAME ||
cm->error_resilient_mode || cm->reset_frame_context == 3) {
// Reset all frame contexts.
for (i = 0; i < FRAME_CONTEXTS; ++i)
cm->frame_contexts[i] = cm->fc;
} else if (cm->reset_frame_context == 2) {
// Reset only the frame context specified in the frame header.
cm->frame_contexts[cm->frame_context_idx] = cm->fc;
}
if (frame_is_intra_only(cm))
vpx_memset(cm->prev_mip, 0,
cm->mode_info_stride * (cm->mi_rows + 1) * sizeof(MODE_INFO));
vpx_memset(cm->mip, 0,
cm->mode_info_stride * (cm->mi_rows + 1) * sizeof(MODE_INFO));
vp9_zero(cm->ref_frame_sign_bias);
cm->frame_context_idx = 0;
}