/* * 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 "modecont.h" #include "entropymode.h" #include "entropymv.h" #include "entropy.h" #include "vpx_mem/vpx_mem.h" const unsigned int kf_y_mode_cts[8][VP8_YMODES] = { #if CONFIG_NEWINTRAMODES /* DC V H D45 135 117 153 D27 D63 TM i8x8 BPRED */ {12, 6, 5, 5, 5, 5, 5, 5, 5, 2, 22, 200}, {25, 13, 13, 7, 7, 7, 7, 7, 7, 6, 27, 160}, {31, 17, 18, 8, 8, 8, 8, 8, 8, 9, 26, 139}, {40, 22, 23, 8, 8, 8, 8, 8, 8, 12, 27, 116}, {53, 26, 28, 8, 8, 8, 8, 8, 8, 13, 26, 94}, {68, 33, 35, 8, 8, 8, 8, 8, 8, 17, 20, 68}, {78, 38, 38, 8, 8, 8, 8, 8, 8, 19, 16, 52}, {89, 42, 42, 8, 8, 8, 8, 8, 8, 21, 12, 34}, #else {17, 6, 5, 2, 22, 203}, {27, 13, 13, 6, 27, 170}, {35, 17, 18, 9, 26, 152}, {45, 22, 24, 12, 27, 126}, {58, 26, 29, 13, 26, 104}, {73, 33, 36, 17, 20, 78}, {88, 38, 39, 19, 16, 57}, {99, 42, 43, 21, 12, 39}, #endif }; static const unsigned int y_mode_cts [VP8_YMODES] = #if CONFIG_NEWINTRAMODES /* DC V H D45 135 117 153 D27 D63 TM i8x8 BPRED */ {98, 19, 15, 14, 14, 14, 14, 12, 12, 13, 16, 70}; #else {106, 25, 21, 13, 16, 74}; #endif static const unsigned int uv_mode_cts [VP8_YMODES] [VP8_UV_MODES] ={ #if CONFIG_NEWINTRAMODES /* 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 */ { 132, 46, 40, 10, 10, 10, 10, 10, 10, 18}, /* i8x8 - never used */ { 150, 35, 41, 10, 10, 10, 10, 10, 10, 10}, /* BPRED */ #else { 210, 20, 20, 6}, { 180, 60, 10, 6}, { 150, 20, 80, 6}, { 170, 35, 35, 16}, { 142, 51, 45, 18}, /* never used */ { 160, 40, 46, 10}, #endif }; static const unsigned int i8x8_mode_cts [VP8_I8X8_MODES] = #if CONFIG_NEWINTRAMODES /* DC V H D45 135 117 153 D27 D63 TM */ {73, 49, 61, 30, 30, 30, 30, 30, 30, 13}; #else {93, 69, 81, 13}; #endif static const unsigned int kf_uv_mode_cts [VP8_YMODES] [VP8_UV_MODES] ={ #if CONFIG_NEWINTRAMODES // 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}, /* i8x8 - never used */ { 122, 41, 35, 20, 20, 20, 20, 20, 20, 18}, /* BPRED */ #else { 180, 34, 34, 8}, { 132, 74, 40, 10}, { 132, 40, 74, 10}, { 152, 46, 40, 18}, { 142, 51, 45, 18}, /* never used */ { 142, 51, 45, 18}, #endif }; static const unsigned int bmode_cts[VP8_BINTRAMODES] = { /* DC TM VE HE LD RD VR VL HD HU */ 43891, 17694, 10036, 3920, 3363, 2546, 5119, 3221, 2471, 1723 }; typedef enum { SUBMVREF_NORMAL, SUBMVREF_LEFT_ZED, SUBMVREF_ABOVE_ZED, SUBMVREF_LEFT_ABOVE_SAME, SUBMVREF_LEFT_ABOVE_ZED } sumvfref_t; int vp8_mv_cont(const int_mv *l, const int_mv *a) { int lez = (l->as_int == 0); int aez = (a->as_int == 0); 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 vp8_prob vp8_sub_mv_ref_prob [VP8_SUBMVREFS-1] = { 180, 162, 25}; const vp8_prob vp8_sub_mv_ref_prob2 [SUBMVREF_COUNT][VP8_SUBMVREFS-1] = { { 147, 136, 18 }, { 106, 145, 1 }, { 179, 121, 1 }, { 223, 1 , 34 }, { 208, 1 , 1 } }; vp8_mbsplit vp8_mbsplits [VP8_NUMMBSPLITS] = { { 0, 0, 0, 0, 0, 0, 0, 0, 1, 1, 1, 1, 1, 1, 1, 1, }, { 0, 0, 1, 1, 0, 0, 1, 1, 0, 0, 1, 1, 0, 0, 1, 1, }, { 0, 0, 1, 1, 0, 0, 1, 1, 2, 2, 3, 3, 2, 2, 3, 3, }, { 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, }, }; const int vp8_mbsplit_count [VP8_NUMMBSPLITS] = { 2, 2, 4, 16}; const vp8_prob vp8_mbsplit_probs [VP8_NUMMBSPLITS-1] = { 110, 111, 150}; /* Array indices are identical to previously-existing INTRAMODECONTEXTNODES. */ const vp8_tree_index vp8_bmode_tree[VP8_BINTRAMODES*2-2] = /* INTRAMODECONTEXTNODE value */ { -B_DC_PRED, 2, /* 0 = DC_NODE */ -B_TM_PRED, 4, /* 1 = TM_NODE */ -B_VE_PRED, 6, /* 2 = VE_NODE */ 8, 12, /* 3 = COM_NODE */ -B_HE_PRED, 10, /* 4 = HE_NODE */ -B_RD_PRED, -B_VR_PRED, /* 5 = RD_NODE */ -B_LD_PRED, 14, /* 6 = LD_NODE */ -B_VL_PRED, 16, /* 7 = VL_NODE */ -B_HD_PRED, -B_HU_PRED /* 8 = HD_NODE */ }; #if CONFIG_NEWINTRAMODES /* Again, these trees use the same probability indices as their explicitly-programmed predecessors. */ const vp8_tree_index vp8_ymode_tree[VP8_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, 20, -B_PRED, -I8X8_PRED }; const vp8_tree_index vp8_kf_ymode_tree[VP8_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, 20, -B_PRED, -I8X8_PRED }; const vp8_tree_index vp8_i8x8_mode_tree[VP8_I8X8_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 vp8_tree_index vp8_uv_mode_tree[VP8_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 }; #else /* CONFIG_NEWINTRAMODES */ /* Again, these trees use the same probability indices as their explicitly-programmed predecessors. */ const vp8_tree_index vp8_ymode_tree[10] = { -DC_PRED, 2, 4, 6, -V_PRED, -H_PRED, -TM_PRED, 8, -B_PRED, -I8X8_PRED }; const vp8_tree_index vp8_kf_ymode_tree[10] = { -B_PRED, 2, 4, 6, -DC_PRED, -V_PRED, -H_PRED, 8, -TM_PRED, -I8X8_PRED }; const vp8_tree_index vp8_i8x8_mode_tree[6] = { -DC_PRED, 2, -V_PRED, 4, -H_PRED, -TM_PRED }; const vp8_tree_index vp8_uv_mode_tree[6] = { -DC_PRED, 2, -V_PRED, 4, -H_PRED, -TM_PRED }; #endif /* CONFIG_NEWINTRAMODES */ const vp8_tree_index vp8_mbsplit_tree[6] = { -3, 2, -2, 4, -0, -1 }; const vp8_tree_index vp8_mv_ref_tree[8] = { -ZEROMV, 2, -NEARESTMV, 4, -NEARMV, 6, -NEWMV, -SPLITMV }; const vp8_tree_index vp8_sub_mv_ref_tree[6] = { -LEFT4X4, 2, -ABOVE4X4, 4, -ZERO4X4, -NEW4X4 }; struct vp8_token_struct vp8_bmode_encodings [VP8_BINTRAMODES]; struct vp8_token_struct vp8_ymode_encodings [VP8_YMODES]; struct vp8_token_struct vp8_kf_ymode_encodings [VP8_YMODES]; struct vp8_token_struct vp8_uv_mode_encodings [VP8_UV_MODES]; struct vp8_token_struct vp8_i8x8_mode_encodings [VP8_UV_MODES]; struct vp8_token_struct vp8_mbsplit_encodings [VP8_NUMMBSPLITS]; struct vp8_token_struct vp8_mv_ref_encoding_array [VP8_MVREFS]; struct vp8_token_struct vp8_sub_mv_ref_encoding_array [VP8_SUBMVREFS]; void vp8_init_mbmode_probs(VP8_COMMON *x) { unsigned int bct [VP8_YMODES] [2]; /* num Ymodes > num UV modes */ vp8_tree_probs_from_distribution( VP8_YMODES, vp8_ymode_encodings, vp8_ymode_tree, x->fc.ymode_prob, bct, y_mode_cts, 256, 1 ); { int i; for (i=0;i<8;i++) vp8_tree_probs_from_distribution( VP8_YMODES, vp8_kf_ymode_encodings, vp8_kf_ymode_tree, x->kf_ymode_prob[i], bct, kf_y_mode_cts[i], 256, 1 ); } { int i; for (i=0;ikf_uv_mode_prob[i], bct, kf_uv_mode_cts[i], 256, 1); vp8_tree_probs_from_distribution( VP8_UV_MODES, vp8_uv_mode_encodings, vp8_uv_mode_tree, x->fc.uv_mode_prob[i], bct, uv_mode_cts[i], 256, 1); } } vp8_tree_probs_from_distribution( VP8_I8X8_MODES, vp8_i8x8_mode_encodings, vp8_i8x8_mode_tree, x->fc.i8x8_mode_prob, bct, i8x8_mode_cts, 256, 1); vpx_memcpy(x->fc.sub_mv_ref_prob, vp8_sub_mv_ref_prob2, sizeof(vp8_sub_mv_ref_prob2)); vpx_memcpy(x->fc.mbsplit_prob, vp8_mbsplit_probs, sizeof(vp8_mbsplit_probs)); } static void intra_bmode_probs_from_distribution( vp8_prob p [VP8_BINTRAMODES-1], unsigned int branch_ct [VP8_BINTRAMODES-1] [2], const unsigned int events [VP8_BINTRAMODES] ) { vp8_tree_probs_from_distribution( VP8_BINTRAMODES, vp8_bmode_encodings, vp8_bmode_tree, p, branch_ct, events, 256, 1 ); } void vp8_default_bmode_probs(vp8_prob p [VP8_BINTRAMODES-1]) { unsigned int branch_ct [VP8_BINTRAMODES-1] [2]; intra_bmode_probs_from_distribution(p, branch_ct, bmode_cts); } void vp8_kf_default_bmode_probs(vp8_prob p [VP8_BINTRAMODES] [VP8_BINTRAMODES] [VP8_BINTRAMODES-1]) { unsigned int branch_ct [VP8_BINTRAMODES-1] [2]; int i = 0; do { int j = 0; do { intra_bmode_probs_from_distribution( p[i][j], branch_ct, vp8_kf_default_bmode_counts[i][j]); } while (++j < VP8_BINTRAMODES); } while (++i < VP8_BINTRAMODES); } void vp8_entropy_mode_init() { vp8_tokens_from_tree(vp8_bmode_encodings, vp8_bmode_tree); vp8_tokens_from_tree(vp8_ymode_encodings, vp8_ymode_tree); vp8_tokens_from_tree(vp8_kf_ymode_encodings, vp8_kf_ymode_tree); vp8_tokens_from_tree(vp8_uv_mode_encodings, vp8_uv_mode_tree); vp8_tokens_from_tree(vp8_i8x8_mode_encodings, vp8_i8x8_mode_tree); vp8_tokens_from_tree(vp8_mbsplit_encodings, vp8_mbsplit_tree); vp8_tokens_from_tree_offset(vp8_mv_ref_encoding_array, vp8_mv_ref_tree, NEARESTMV); vp8_tokens_from_tree_offset(vp8_sub_mv_ref_encoding_array, vp8_sub_mv_ref_tree, LEFT4X4); } void vp8_init_mode_contexts(VP8_COMMON *pc) { vpx_memset(pc->fc.mv_ref_ct, 0, sizeof(pc->fc.mv_ref_ct)); vpx_memset(pc->fc.mv_ref_ct_a, 0, sizeof(pc->fc.mv_ref_ct_a)); vpx_memcpy( pc->fc.mode_context, default_vp8_mode_contexts, sizeof (pc->fc.mode_context)); vpx_memcpy( pc->fc.mode_context_a, default_vp8_mode_contexts, sizeof (pc->fc.mode_context_a)); } void vp8_accum_mv_refs(VP8_COMMON *pc, MB_PREDICTION_MODE m, const int ct[4]) { int (*mv_ref_ct)[4][2]; if(pc->refresh_alt_ref_frame) mv_ref_ct = pc->fc.mv_ref_ct_a; else mv_ref_ct = pc->fc.mv_ref_ct; if (m == ZEROMV) { ++mv_ref_ct [ct[0]] [0] [0]; } else { ++mv_ref_ct [ct[0]] [0] [1]; if (m == NEARESTMV) { ++mv_ref_ct [ct[1]] [1] [0]; } else { ++mv_ref_ct [ct[1]] [1] [1]; if (m == NEARMV) { ++mv_ref_ct [ct[2]] [2] [0]; } else { ++mv_ref_ct [ct[2]] [2] [1]; if (m == NEWMV) { ++mv_ref_ct [ct[3]] [3] [0]; } else { ++mv_ref_ct [ct[3]] [3] [1]; } } } } } #define MVREF_COUNT_SAT 20 #define MVREF_MAX_UPDATE_FACTOR 128 void vp8_update_mode_context(VP8_COMMON *pc) { int i, j; int (*mv_ref_ct)[4][2]; int (*mode_context)[4]; if(pc->refresh_alt_ref_frame) { mv_ref_ct = pc->fc.mv_ref_ct_a; mode_context = pc->fc.mode_context_a; } else { mv_ref_ct = pc->fc.mv_ref_ct; mode_context = pc->fc.mode_context; } for (j = 0; j < 6; j++) { for (i = 0; i < 4; i++) { int this_prob; int count = mv_ref_ct[j][i][0] + mv_ref_ct[j][i][1]; #if CONFIG_ADAPTIVE_ENTROPY int factor; { this_prob = count > 0 ? 256 * mv_ref_ct[j][i][0] / count : 128; count = count > MVREF_COUNT_SAT ? MVREF_COUNT_SAT : count; factor = (MVREF_MAX_UPDATE_FACTOR * count / MVREF_COUNT_SAT); this_prob = (pc->fc.vp8_mode_contexts[j][i] * (256 - factor) + this_prob * factor + 128) >> 8; this_prob = this_prob? (this_prob<255?this_prob:255):1; mode_context[j][i] = this_prob; } #else /* preventing rare occurances from skewing the probs */ if (count>=4) { this_prob = 256 * mv_ref_ct[j][i][0] / count; this_prob = this_prob? (this_prob<255?this_prob:255):1; mode_context[j][i] = this_prob; } #endif } } } #include "vp8/common/modecont.h" void print_mode_contexts(VP8_COMMON *pc) { int j, i; printf("\n====================\n"); for(j=0; j<6; j++) { for (i = 0; i < 4; i++) { printf( "%4d ", pc->fc.mode_context[j][i]); } printf("\n"); } printf("====================\n"); for(j=0; j<6; j++) { for (i = 0; i < 4; i++) { printf( "%4d ", pc->fc.mode_context_a[j][i]); } printf("\n"); } } void print_mv_ref_cts(VP8_COMMON *pc) { int j, i; for(j=0; j<6; j++) { for (i = 0; i < 4; i++) { printf("(%4d:%4d) ", pc->fc.mv_ref_ct[j][i][0], pc->fc.mv_ref_ct[j][i][1]); } printf("\n"); } } #if CONFIG_ADAPTIVE_ENTROPY //#define MODE_COUNT_TESTING #define MODE_COUNT_SAT 16 #define MODE_MAX_UPDATE_FACTOR 128 void vp8_adapt_mode_probs(VP8_COMMON *cm) { int i, t, count, factor; unsigned int branch_ct[32][2]; vp8_prob ymode_probs[VP8_YMODES-1]; vp8_prob uvmode_probs[VP8_UV_MODES-1]; vp8_prob bmode_probs[VP8_BINTRAMODES-1]; vp8_prob i8x8_mode_probs[VP8_I8X8_MODES-1]; vp8_prob sub_mv_ref_probs[VP8_SUBMVREFS-1]; vp8_prob mbsplit_probs[VP8_NUMMBSPLITS-1]; #ifdef MODE_COUNT_TESTING printf("static const unsigned int\nymode_counts" "[VP8_YMODES] = {\n"); for (t = 0; tfc.ymode_counts[t]); printf("};\n"); printf("static const unsigned int\nuv_mode_counts" "[VP8_YMODES] [VP8_UV_MODES] = {\n"); for (i = 0; i < VP8_YMODES; ++i) { printf(" {"); for (t = 0; t < VP8_UV_MODES; ++t) printf("%d, ", cm->fc.uv_mode_counts[i][t]); printf("},\n"); } printf("};\n"); printf("static const unsigned int\nbmode_counts" "[VP8_BINTRAMODES] = {\n"); for (t = 0; tfc.bmode_counts[t]); printf("};\n"); printf("static const unsigned int\ni8x8_mode_counts" "[VP8_I8X8_MODES] = {\n"); for (t = 0; tfc.i8x8_mode_counts[t]); printf("};\n"); printf("static const unsigned int\nsub_mv_ref_counts" "[SUBMVREF_COUNT] [VP8_SUBMVREFS] = {\n"); for (i = 0; i < SUBMVREF_COUNT; ++i) { printf(" {"); for (t = 0; t < VP8_SUBMVREFS; ++t) printf("%d, ", cm->fc.sub_mv_ref_counts[i][t]); printf("},\n"); } printf("};\n"); printf("static const unsigned int\nmbsplit_counts" "[VP8_NUMMBSPLITS] = {\n"); for (t = 0; tfc.mbsplit_counts[t]); printf("};\n"); #endif vp8_tree_probs_from_distribution( VP8_YMODES, vp8_ymode_encodings, vp8_ymode_tree, ymode_probs, branch_ct, cm->fc.ymode_counts, 256, 1); for (t=0; t MODE_COUNT_SAT ? MODE_COUNT_SAT : count; factor = (MODE_MAX_UPDATE_FACTOR * count / MODE_COUNT_SAT); prob = ((int)cm->fc.pre_ymode_prob[t] * (256-factor) + (int)ymode_probs[t] * factor + 128) >> 8; if (prob <= 0) cm->fc.ymode_prob[t] = 1; else if (prob > 255) cm->fc.ymode_prob[t] = 255; else cm->fc.ymode_prob[t] = prob; } for (i = 0; i < VP8_YMODES; ++i) { vp8_tree_probs_from_distribution( VP8_UV_MODES, vp8_uv_mode_encodings, vp8_uv_mode_tree, uvmode_probs, branch_ct, cm->fc.uv_mode_counts[i], 256, 1); for (t = 0; t < VP8_UV_MODES-1; ++t) { int prob; 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); prob = ((int)cm->fc.pre_uv_mode_prob[i][t] * (256-factor) + (int)uvmode_probs[t] * factor + 128) >> 8; if (prob <= 0) cm->fc.uv_mode_prob[i][t] = 1; else if (prob > 255) cm->fc.uv_mode_prob[i][t] = 255; else cm->fc.uv_mode_prob[i][t] = prob; } } vp8_tree_probs_from_distribution( VP8_BINTRAMODES, vp8_bmode_encodings, vp8_bmode_tree, bmode_probs, branch_ct, cm->fc.bmode_counts, 256, 1); for (t=0; t MODE_COUNT_SAT ? MODE_COUNT_SAT : count; factor = (MODE_MAX_UPDATE_FACTOR * count / MODE_COUNT_SAT); prob = ((int)cm->fc.pre_bmode_prob[t] * (256-factor) + (int)bmode_probs[t] * factor + 128) >> 8; if (prob <= 0) cm->fc.bmode_prob[t] = 1; else if (prob > 255) cm->fc.bmode_prob[t] = 255; else cm->fc.bmode_prob[t] = prob; } vp8_tree_probs_from_distribution( VP8_I8X8_MODES, vp8_i8x8_mode_encodings, vp8_i8x8_mode_tree, i8x8_mode_probs, branch_ct, cm->fc.i8x8_mode_counts, 256, 1); for (t=0; t MODE_COUNT_SAT ? MODE_COUNT_SAT : count; factor = (MODE_MAX_UPDATE_FACTOR * count / MODE_COUNT_SAT); prob = ((int)cm->fc.pre_i8x8_mode_prob[t] * (256-factor) + (int)i8x8_mode_probs[t] * factor + 128) >> 8; if (prob <= 0) cm->fc.i8x8_mode_prob[t] = 1; else if (prob > 255) cm->fc.i8x8_mode_prob[t] = 255; else cm->fc.i8x8_mode_prob[t] = prob; } for (i = 0; i < SUBMVREF_COUNT; ++i) { vp8_tree_probs_from_distribution( VP8_SUBMVREFS, vp8_sub_mv_ref_encoding_array, vp8_sub_mv_ref_tree, sub_mv_ref_probs, branch_ct, cm->fc.sub_mv_ref_counts[i], 256, 1); for (t = 0; t < VP8_SUBMVREFS-1; ++t) { int prob; 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); prob = ((int)cm->fc.pre_sub_mv_ref_prob[i][t] * (256-factor) + (int)sub_mv_ref_probs[t] * factor + 128) >> 8; if (prob <= 0) cm->fc.sub_mv_ref_prob[i][t] = 1; else if (prob > 255) cm->fc.sub_mv_ref_prob[i][t] = 255; else cm->fc.sub_mv_ref_prob[i][t] = prob; } } vp8_tree_probs_from_distribution( VP8_NUMMBSPLITS, vp8_mbsplit_encodings, vp8_mbsplit_tree, mbsplit_probs, branch_ct, cm->fc.mbsplit_counts, 256, 1); for (t = 0; t < VP8_NUMMBSPLITS-1; ++t) { int prob; 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); prob = ((int)cm->fc.pre_mbsplit_prob[t] * (256 - factor) + (int)mbsplit_probs[t] * factor + 128) >> 8; if (prob <= 0) cm->fc.mbsplit_prob[t] = 1; else if (prob > 255) cm->fc.mbsplit_prob[t] = 255; else cm->fc.mbsplit_prob[t] = prob; } } #endif