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99c4b1eea1
vpx/vp9/common/vp9_entropymode.c
Paul Wilkins 99c4b1eea1 Replace default counts with default probs. 
Replace vp9_kf_default_bmode_counts structure with
direct default probabilities. The probability structure is
smaller and it removes the need to specify in the bitstream
how to convert the counts to probabilities.

Note that I have concerns still about the size and value of
the large intra mode context. This may cause problems for
HW but it also means we rely heavily on reverse update as
forwards update of a structure this size is problematic. I
intend to review this more generally in the next few days to
see if we can come up with a competitive solution that does
not rely on such a large context.

Change-Id: I0a36071079d5d26a57ab0e9fbf91af4199aa7984
2013-05-17 14:54:52 +01:00

546 lines
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/*
* 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 "vp9/common/vp9_onyxc_int.h"
#include "vp9/common/vp9_modecont.h"
#include "vp9/common/vp9_seg_common.h"
#include "vp9/common/vp9_alloccommon.h"
#include "vpx_mem/vpx_mem.h"
static const unsigned int kf_y_mode_cts[8][VP9_YMODES] = {
/* DC V H D45 135 117 153 D27 D63 TM i4X4 */
{12, 6, 5, 5, 5, 5, 5, 5, 5, 2, 200},
{25, 13, 13, 7, 7, 7, 7, 7, 7, 6, 160},
{31, 17, 18, 8, 8, 8, 8, 8, 8, 9, 139},
{40, 22, 23, 8, 8, 8, 8, 8, 8, 12, 116},
{53, 26, 28, 8, 8, 8, 8, 8, 8, 13, 94},
{68, 33, 35, 8, 8, 8, 8, 8, 8, 17, 68},
{78, 38, 38, 8, 8, 8, 8, 8, 8, 19, 52},
{89, 42, 42, 8, 8, 8, 8, 8, 8, 21, 34},
};
static const unsigned int y_mode_cts [VP9_YMODES] = {
/* DC V H D45 135 117 153 D27 D63 TM i4X4 */
98, 19, 15, 14, 14, 14, 14, 12, 12, 13, 70
};
static const unsigned int uv_mode_cts [VP9_YMODES] [VP9_UV_MODES] = {
/* DC V H D45 135 117 153 D27 D63 TM */
{ 200, 15, 15, 10, 10, 10, 10, 10, 10, 6}, /* DC */
{ 130, 75, 10, 10, 10, 10, 10, 10, 10, 6}, /* V */
{ 130, 10, 75, 10, 10, 10, 10, 10, 10, 6}, /* H */
{ 130, 15, 10, 75, 10, 10, 10, 10, 10, 6}, /* D45 */
{ 150, 15, 10, 10, 75, 10, 10, 10, 10, 6}, /* D135 */
{ 150, 15, 10, 10, 10, 75, 10, 10, 10, 6}, /* D117 */
{ 150, 15, 10, 10, 10, 10, 75, 10, 10, 6}, /* D153 */
{ 150, 15, 10, 10, 10, 10, 10, 75, 10, 6}, /* D27 */
{ 150, 15, 10, 10, 10, 10, 10, 10, 75, 6}, /* D63 */
{ 160, 30, 30, 10, 10, 10, 10, 10, 10, 16}, /* TM */
{ 150, 35, 41, 10, 10, 10, 10, 10, 10, 10}, /* i4X4 */
};
static const unsigned int kf_uv_mode_cts [VP9_YMODES] [VP9_UV_MODES] = {
// DC V H D45 135 117 153 D27 D63 TM
{ 160, 24, 24, 20, 20, 20, 20, 20, 20, 8}, /* DC */
{ 102, 64, 30, 20, 20, 20, 20, 20, 20, 10}, /* V */
{ 102, 30, 64, 20, 20, 20, 20, 20, 20, 10}, /* H */
{ 102, 33, 20, 64, 20, 20, 20, 20, 20, 14}, /* D45 */
{ 102, 33, 20, 20, 64, 20, 20, 20, 20, 14}, /* D135 */
{ 122, 33, 20, 20, 20, 64, 20, 20, 20, 14}, /* D117 */
{ 102, 33, 20, 20, 20, 20, 64, 20, 20, 14}, /* D153 */
{ 102, 33, 20, 20, 20, 20, 20, 64, 20, 14}, /* D27 */
{ 102, 33, 20, 20, 20, 20, 20, 20, 64, 14}, /* D63 */
{ 132, 36, 30, 20, 20, 20, 20, 20, 20, 18}, /* TM */
{ 122, 41, 35, 20, 20, 20, 20, 20, 20, 18}, /* I4X4 */
};
static const unsigned int bmode_cts[VP9_NKF_BINTRAMODES] = {
/* DC V H D45 D135 D117 D153 D27 D63 TM */
43891, 10036, 3920, 3363, 2546, 5119, 2471, 1723, 3221, 17694
};
typedef enum {
SUBMVREF_NORMAL,
SUBMVREF_LEFT_ZED,
SUBMVREF_ABOVE_ZED,
SUBMVREF_LEFT_ABOVE_SAME,
SUBMVREF_LEFT_ABOVE_ZED
} sumvfref_t;
int vp9_mv_cont(const int_mv *l, const int_mv *a) {
const int lez = (l->as_int == 0);
const int aez = (a->as_int == 0);
const int lea = (l->as_int == a->as_int);
if (lea && lez)
return SUBMVREF_LEFT_ABOVE_ZED;
if (lea)
return SUBMVREF_LEFT_ABOVE_SAME;
if (aez)
return SUBMVREF_ABOVE_ZED;
if (lez)
return SUBMVREF_LEFT_ZED;
return SUBMVREF_NORMAL;
}
const vp9_prob vp9_sub_mv_ref_prob2 [SUBMVREF_COUNT][VP9_SUBMVREFS - 1] = {
{ 147, 136, 18 },
{ 106, 145, 1 },
{ 179, 121, 1 },
{ 223, 1, 34 },
{ 208, 1, 1 }
};
const vp9_prob vp9_partition_probs[NUM_PARTITION_CONTEXTS]
[PARTITION_TYPES - 1] = {
// FIXME(jingning,rbultje) put real probabilities here
#if CONFIG_AB4X4
{202, 162, 107},
{16, 2, 169},
{3, 246, 19},
{104, 90, 134},
#endif
{202, 162, 107},
{16, 2, 169},
{3, 246, 19},
{104, 90, 134},
{202, 162, 107},
{16, 2, 169},
{3, 246, 19},
{104, 90, 134},
{183, 70, 109},
{30, 14, 162},
{67, 208, 22},
{4, 17, 5},
};
/* Array indices are identical to previously-existing INTRAMODECONTEXTNODES. */
const vp9_tree_index vp9_kf_bmode_tree[VP9_KF_BINTRAMODES * 2 - 2] = {
-B_DC_PRED, 2, /* 0 = DC_NODE */
-B_TM_PRED, 4, /* 1 = TM_NODE */
-B_V_PRED, 6, /* 2 = V_NODE */
8, 12, /* 3 = COM_NODE */
-B_H_PRED, 10, /* 4 = H_NODE */
-B_D135_PRED, -B_D117_PRED, /* 5 = D135_NODE */
-B_D45_PRED, 14, /* 6 = D45_NODE */
-B_D63_PRED, 16, /* 7 = D63_NODE */
-B_D153_PRED, -B_D27_PRED /* 8 = D153_NODE */
};
const vp9_tree_index vp9_bmode_tree[VP9_NKF_BINTRAMODES * 2 - 2] = {
-B_DC_PRED, 2, /* 0 = DC_NODE */
-B_TM_PRED, 4, /* 1 = TM_NODE */
-B_V_PRED, 6, /* 2 = V_NODE */
8, 12, /* 3 = COM_NODE */
-B_H_PRED, 10, /* 4 = H_NODE */
-B_D135_PRED, -B_D117_PRED, /* 5 = D135_NODE */
-B_D45_PRED, 14, /* 6 = D45_NODE */
-B_D63_PRED, 16, /* 7 = D63_NODE */
-B_D153_PRED, -B_D27_PRED /* 8 = D153_NODE */
};
/* Again, these trees use the same probability indices as their
explicitly-programmed predecessors. */
const vp9_tree_index vp9_ymode_tree[VP9_YMODES * 2 - 2] = {
2, 14,
-DC_PRED, 4,
6, 8,
-D45_PRED, -D135_PRED,
10, 12,
-D117_PRED, -D153_PRED,
-D27_PRED, -D63_PRED,
16, 18,
-V_PRED, -H_PRED,
-TM_PRED, -I4X4_PRED
};
const vp9_tree_index vp9_kf_ymode_tree[VP9_YMODES * 2 - 2] = {
2, 14,
-DC_PRED, 4,
6, 8,
-D45_PRED, -D135_PRED,
10, 12,
-D117_PRED, -D153_PRED,
-D27_PRED, -D63_PRED,
16, 18,
-V_PRED, -H_PRED,
-TM_PRED, -I4X4_PRED
};
const vp9_tree_index vp9_uv_mode_tree[VP9_UV_MODES * 2 - 2] = {
2, 14,
-DC_PRED, 4,
6, 8,
-D45_PRED, -D135_PRED,
10, 12,
-D117_PRED, -D153_PRED,
-D27_PRED, -D63_PRED,
-V_PRED, 16,
-H_PRED, -TM_PRED
};
const vp9_tree_index vp9_mv_ref_tree[8] = {
-ZEROMV, 2,
-NEARESTMV, 4,
-NEARMV, 6,
-NEWMV, -SPLITMV
};
const vp9_tree_index vp9_sb_mv_ref_tree[6] = {
-ZEROMV, 2,
-NEARESTMV, 4,
-NEARMV, -NEWMV
};
const vp9_tree_index vp9_sub_mv_ref_tree[6] = {
-LEFT4X4, 2,
-ABOVE4X4, 4,
-ZERO4X4, -NEW4X4
};
const vp9_tree_index vp9_partition_tree[6] = {
-PARTITION_NONE, 2,
-PARTITION_HORZ, 4,
-PARTITION_VERT, -PARTITION_SPLIT
};
struct vp9_token vp9_bmode_encodings[VP9_NKF_BINTRAMODES];
struct vp9_token vp9_kf_bmode_encodings[VP9_KF_BINTRAMODES];
struct vp9_token vp9_ymode_encodings[VP9_YMODES];
struct vp9_token vp9_sb_ymode_encodings[VP9_I32X32_MODES];
struct vp9_token vp9_sb_kf_ymode_encodings[VP9_I32X32_MODES];
struct vp9_token vp9_kf_ymode_encodings[VP9_YMODES];
struct vp9_token vp9_uv_mode_encodings[VP9_UV_MODES];
struct vp9_token vp9_mv_ref_encoding_array[VP9_MVREFS];
struct vp9_token vp9_sb_mv_ref_encoding_array[VP9_MVREFS];
struct vp9_token vp9_sub_mv_ref_encoding_array[VP9_SUBMVREFS];
struct vp9_token vp9_partition_encodings[PARTITION_TYPES];
void vp9_init_mbmode_probs(VP9_COMMON *x) {
unsigned int bct[VP9_YMODES][2]; // num Ymodes > num UV modes
int i;
vp9_tree_probs_from_distribution(vp9_ymode_tree, x->fc.ymode_prob,
bct, y_mode_cts, 0);
vp9_tree_probs_from_distribution(vp9_sb_ymode_tree, x->fc.sb_ymode_prob,
bct, y_mode_cts, 0);
for (i = 0; i < 8; i++) {
vp9_tree_probs_from_distribution(vp9_kf_ymode_tree, x->kf_ymode_prob[i],
bct, kf_y_mode_cts[i], 0);
vp9_tree_probs_from_distribution(vp9_sb_kf_ymode_tree,
x->sb_kf_ymode_prob[i], bct,
kf_y_mode_cts[i], 0);
}
for (i = 0; i < VP9_YMODES; i++) {
vp9_tree_probs_from_distribution(vp9_uv_mode_tree, x->kf_uv_mode_prob[i],
bct, kf_uv_mode_cts[i], 0);
vp9_tree_probs_from_distribution(vp9_uv_mode_tree, x->fc.uv_mode_prob[i],
bct, uv_mode_cts[i], 0);
}
vpx_memcpy(x->fc.sub_mv_ref_prob, vp9_sub_mv_ref_prob2,
sizeof(vp9_sub_mv_ref_prob2));
vpx_memcpy(x->fc.switchable_interp_prob, vp9_switchable_interp_prob,
sizeof(vp9_switchable_interp_prob));
vpx_memcpy(x->fc.partition_prob, vp9_partition_probs,
sizeof(vp9_partition_probs));
x->ref_pred_probs[0] = DEFAULT_PRED_PROB_0;
x->ref_pred_probs[1] = DEFAULT_PRED_PROB_1;
x->ref_pred_probs[2] = DEFAULT_PRED_PROB_2;
}
static void intra_bmode_probs_from_distribution(
vp9_prob p[VP9_NKF_BINTRAMODES - 1],
unsigned int branch_ct[VP9_NKF_BINTRAMODES - 1][2],
const unsigned int events[VP9_NKF_BINTRAMODES]) {
vp9_tree_probs_from_distribution(vp9_bmode_tree, p, branch_ct, events, 0);
}
void vp9_default_bmode_probs(vp9_prob p[VP9_NKF_BINTRAMODES - 1]) {
unsigned int branch_ct[VP9_NKF_BINTRAMODES - 1][2];
intra_bmode_probs_from_distribution(p, branch_ct, bmode_cts);
}
#if VP9_SWITCHABLE_FILTERS == 3
const vp9_tree_index vp9_switchable_interp_tree[VP9_SWITCHABLE_FILTERS*2-2] = {
-0, 2,
-1, -2
};
struct vp9_token vp9_switchable_interp_encodings[VP9_SWITCHABLE_FILTERS];
const INTERPOLATIONFILTERTYPE vp9_switchable_interp[VP9_SWITCHABLE_FILTERS] = {
EIGHTTAP, EIGHTTAP_SMOOTH, EIGHTTAP_SHARP};
const int vp9_switchable_interp_map[SWITCHABLE+1] = {1, 0, 2, -1, -1};
const vp9_prob vp9_switchable_interp_prob [VP9_SWITCHABLE_FILTERS+1]
[VP9_SWITCHABLE_FILTERS-1] = {
{248, 192}, { 32, 248}, { 32, 32}, {192, 160}
};
#elif VP9_SWITCHABLE_FILTERS == 2
const vp9_tree_index vp9_switchable_interp_tree[VP9_SWITCHABLE_FILTERS*2-2] = {
-0, -1,
};
struct vp9_token vp9_switchable_interp_encodings[VP9_SWITCHABLE_FILTERS];
const vp9_prob vp9_switchable_interp_prob [VP9_SWITCHABLE_FILTERS+1]
[VP9_SWITCHABLE_FILTERS-1] = {
{248},
{ 64},
{192},
};
const INTERPOLATIONFILTERTYPE vp9_switchable_interp[VP9_SWITCHABLE_FILTERS] = {
EIGHTTAP, EIGHTTAP_SHARP};
const int vp9_switchable_interp_map[SWITCHABLE+1] = {-1, 0, 1, -1, -1};
#endif // VP9_SWITCHABLE_FILTERS
// Indicates if the filter is interpolating or non-interpolating
// Note currently only the EIGHTTAP_SMOOTH is non-interpolating
const int vp9_is_interpolating_filter[SWITCHABLE + 1] = {0, 1, 1, 1, -1};
void vp9_entropy_mode_init() {
vp9_tokens_from_tree(vp9_kf_bmode_encodings, vp9_kf_bmode_tree);
vp9_tokens_from_tree(vp9_bmode_encodings, vp9_bmode_tree);
vp9_tokens_from_tree(vp9_ymode_encodings, vp9_ymode_tree);
vp9_tokens_from_tree(vp9_kf_ymode_encodings, vp9_kf_ymode_tree);
vp9_tokens_from_tree(vp9_sb_ymode_encodings, vp9_sb_ymode_tree);
vp9_tokens_from_tree(vp9_sb_kf_ymode_encodings, vp9_sb_kf_ymode_tree);
vp9_tokens_from_tree(vp9_uv_mode_encodings, vp9_uv_mode_tree);
vp9_tokens_from_tree(vp9_switchable_interp_encodings,
vp9_switchable_interp_tree);
vp9_tokens_from_tree(vp9_partition_encodings, vp9_partition_tree);
vp9_tokens_from_tree_offset(vp9_mv_ref_encoding_array,
vp9_mv_ref_tree, NEARESTMV);
vp9_tokens_from_tree_offset(vp9_sb_mv_ref_encoding_array,
vp9_sb_mv_ref_tree, NEARESTMV);
vp9_tokens_from_tree_offset(vp9_sub_mv_ref_encoding_array,
vp9_sub_mv_ref_tree, LEFT4X4);
}
void vp9_init_mode_contexts(VP9_COMMON *pc) {
vpx_memset(pc->fc.mv_ref_ct, 0, sizeof(pc->fc.mv_ref_ct));
vpx_memcpy(pc->fc.vp9_mode_contexts,
vp9_default_mode_contexts,
sizeof(vp9_default_mode_contexts));
}
void vp9_accum_mv_refs(VP9_COMMON *pc,
MB_PREDICTION_MODE m,
const int context) {
unsigned int (*mv_ref_ct)[4][2] = pc->fc.mv_ref_ct;
if (m == ZEROMV) {
++mv_ref_ct[context][0][0];
} else {
++mv_ref_ct[context][0][1];
if (m == NEARESTMV) {
++mv_ref_ct[context][1][0];
} else {
++mv_ref_ct[context][1][1];
if (m == NEARMV) {
++mv_ref_ct[context][2][0];
} else {
++mv_ref_ct[context][2][1];
if (m == NEWMV) {
++mv_ref_ct[context][3][0];
} else {
++mv_ref_ct[context][3][1];
}
}
}
}
}
#define MVREF_COUNT_SAT 20
#define MVREF_MAX_UPDATE_FACTOR 128
void vp9_adapt_mode_context(VP9_COMMON *pc) {
int i, j;
unsigned int (*mv_ref_ct)[4][2] = pc->fc.mv_ref_ct;
int (*mode_context)[4] = pc->fc.vp9_mode_contexts;
for (j = 0; j < INTER_MODE_CONTEXTS; j++) {
for (i = 0; i < 4; i++) {
int count = mv_ref_ct[j][i][0] + mv_ref_ct[j][i][1], factor;
count = count > MVREF_COUNT_SAT ? MVREF_COUNT_SAT : count;
factor = (MVREF_MAX_UPDATE_FACTOR * count / MVREF_COUNT_SAT);
mode_context[j][i] = weighted_prob(pc->fc.vp9_mode_contexts[j][i],
get_binary_prob(mv_ref_ct[j][i][0],
mv_ref_ct[j][i][1]),
factor);
}
}
}
#define MODE_COUNT_SAT 20
#define MODE_MAX_UPDATE_FACTOR 144
static void update_mode_probs(int n_modes,
const vp9_tree_index *tree, unsigned int *cnt,
vp9_prob *pre_probs, vp9_prob *dst_probs,
unsigned int tok0_offset) {
#define MAX_PROBS 32
vp9_prob probs[MAX_PROBS];
unsigned int branch_ct[MAX_PROBS][2];
int t, count, factor;
assert(n_modes - 1 < MAX_PROBS);
vp9_tree_probs_from_distribution(tree, probs, branch_ct, cnt, tok0_offset);
for (t = 0; t < n_modes - 1; ++t) {
count = branch_ct[t][0] + branch_ct[t][1];
count = count > MODE_COUNT_SAT ? MODE_COUNT_SAT : count;
factor = (MODE_MAX_UPDATE_FACTOR * count / MODE_COUNT_SAT);
dst_probs[t] = weighted_prob(pre_probs[t], probs[t], factor);
}
}
// #define MODE_COUNT_TESTING
void vp9_adapt_mode_probs(VP9_COMMON *cm) {
int i;
FRAME_CONTEXT *fc = &cm->fc;
#ifdef MODE_COUNT_TESTING
int t;
printf("static const unsigned int\nymode_counts"
"[VP9_YMODES] = {\n");
for (t = 0; t < VP9_YMODES; ++t)
printf("%d, ", fc->ymode_counts[t]);
printf("};\n");
printf("static const unsigned int\nuv_mode_counts"
"[VP9_YMODES] [VP9_UV_MODES] = {\n");
for (i = 0; i < VP9_YMODES; ++i) {
printf(" {");
for (t = 0; t < VP9_UV_MODES; ++t)
printf("%d, ", fc->uv_mode_counts[i][t]);
printf("},\n");
}
printf("};\n");
printf("static const unsigned int\nbmode_counts"
"[VP9_NKF_BINTRAMODES] = {\n");
for (t = 0; t < VP9_NKF_BINTRAMODES; ++t)
printf("%d, ", fc->bmode_counts[t]);
printf("};\n");
printf("static const unsigned int\ni8x8_mode_counts"
"[VP9_I8X8_MODES] = {\n");
for (t = 0; t < VP9_I8X8_MODES; ++t)
printf("%d, ", fc->i8x8_mode_counts[t]);
printf("};\n");
printf("static const unsigned int\nsub_mv_ref_counts"
"[SUBMVREF_COUNT] [VP9_SUBMVREFS] = {\n");
for (i = 0; i < SUBMVREF_COUNT; ++i) {
printf(" {");
for (t = 0; t < VP9_SUBMVREFS; ++t)
printf("%d, ", fc->sub_mv_ref_counts[i][t]);
printf("},\n");
}
printf("};\n");
printf("static const unsigned int\nmbsplit_counts"
"[VP9_NUMMBSPLITS] = {\n");
for (t = 0; t < VP9_NUMMBSPLITS; ++t)
printf("%d, ", fc->mbsplit_counts[t]);
printf("};\n");
#endif
update_mode_probs(VP9_YMODES, vp9_ymode_tree,
fc->ymode_counts, fc->pre_ymode_prob,
fc->ymode_prob, 0);
update_mode_probs(VP9_I32X32_MODES, vp9_sb_ymode_tree,
fc->sb_ymode_counts, fc->pre_sb_ymode_prob,
fc->sb_ymode_prob, 0);
for (i = 0; i < VP9_YMODES; ++i)
update_mode_probs(VP9_UV_MODES, vp9_uv_mode_tree,
fc->uv_mode_counts[i], fc->pre_uv_mode_prob[i],
fc->uv_mode_prob[i], 0);
update_mode_probs(VP9_NKF_BINTRAMODES, vp9_bmode_tree,
fc->bmode_counts, fc->pre_bmode_prob,
fc->bmode_prob, 0);
for (i = 0; i < SUBMVREF_COUNT; ++i)
update_mode_probs(VP9_SUBMVREFS,
vp9_sub_mv_ref_tree, fc->sub_mv_ref_counts[i],
fc->pre_sub_mv_ref_prob[i], fc->sub_mv_ref_prob[i],
LEFT4X4);
for (i = 0; i < NUM_PARTITION_CONTEXTS; i++)
update_mode_probs(PARTITION_TYPES, vp9_partition_tree,
fc->partition_counts[i], fc->pre_partition_prob[i],
fc->partition_prob[i], 0);
}
static void set_default_lf_deltas(MACROBLOCKD *xd) {
xd->mode_ref_lf_delta_enabled = 1;
xd->mode_ref_lf_delta_update = 1;
xd->ref_lf_deltas[INTRA_FRAME] = 1;
xd->ref_lf_deltas[LAST_FRAME] = 0;
xd->ref_lf_deltas[GOLDEN_FRAME] = -1;
xd->ref_lf_deltas[ALTREF_FRAME] = -1;
xd->mode_lf_deltas[0] = 2; // I4X4_PRED
xd->mode_lf_deltas[1] = -1; // Zero
xd->mode_lf_deltas[2] = 1; // New mv
xd->mode_lf_deltas[3] = 2; // Split mv
}
void vp9_setup_past_independence(VP9_COMMON *cm, MACROBLOCKD *xd) {
// Reset the segment feature data to the default stats:
// Features disabled, 0, with delta coding (Default state).
int i;
vp9_clearall_segfeatures(xd);
xd->mb_segment_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
vpx_memset(xd->last_ref_lf_deltas, 0, sizeof(xd->last_ref_lf_deltas));
vpx_memset(xd->last_mode_lf_deltas, 0, sizeof(xd->last_mode_lf_deltas));
set_default_lf_deltas(xd);
vp9_default_coef_probs(cm);
vp9_init_mbmode_probs(cm);
vp9_default_bmode_probs(cm->fc.bmode_prob);
vpx_memcpy(cm->kf_bmode_prob, vp9_kf_default_bmode_probs,
sizeof(vp9_kf_default_bmode_probs));
vp9_init_mv_probs(cm);
// To force update of the sharpness
cm->last_sharpness_level = -1;
vp9_init_mode_contexts(cm);
for (i = 0; i < NUM_FRAME_CONTEXTS; i++)
vpx_memcpy(&cm->frame_contexts[i], &cm->fc, sizeof(cm->fc));
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_update_mode_info_border(cm, cm->mip);
vp9_update_mode_info_in_image(cm, cm->mi);
vp9_update_mode_info_border(cm, cm->prev_mip);
vp9_update_mode_info_in_image(cm, cm->prev_mi);
vpx_memset(cm->ref_frame_sign_bias, 0, sizeof(cm->ref_frame_sign_bias));
cm->frame_context_idx = 0;
}
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