ref: 2d6393a98d5089d52cea3353e3a9e0b52a28c3f5
dir: /vp8/common/entropymode.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. */ #define USE_PREBUILT_TABLES #include "entropymode.h" #include "entropy.h" #include "vpx_mem/vpx_mem.h" #include "vp8_entropymodedata.h" 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; } static const vp8_prob 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 } }; const 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[18] = /* 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 */ }; /* Again, these trees use the same probability indices as their explicitly-programmed predecessors. */ const vp8_tree_index vp8_ymode_tree[8] = { -DC_PRED, 2, 4, 6, -V_PRED, -H_PRED, -TM_PRED, -B_PRED }; const vp8_tree_index vp8_kf_ymode_tree[8] = { -B_PRED, 2, 4, 6, -DC_PRED, -V_PRED, -H_PRED, -TM_PRED }; const vp8_tree_index vp8_uv_mode_tree[6] = { -DC_PRED, 2, -V_PRED, 4, -H_PRED, -TM_PRED }; 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 }; const vp8_tree_index vp8_small_mvtree [14] = { 2, 8, 4, 6, -0, -1, -2, -3, 10, 12, -4, -5, -6, -7 }; void vp8_init_mbmode_probs(VP8_COMMON *x) { memcpy(x->fc.ymode_prob, vp8_ymode_prob, sizeof(vp8_ymode_prob)); memcpy(x->fc.uv_mode_prob, vp8_uv_mode_prob, sizeof(vp8_uv_mode_prob)); memcpy(x->fc.sub_mv_ref_prob, sub_mv_ref_prob, sizeof(sub_mv_ref_prob)); } void vp8_default_bmode_probs(vp8_prob p [VP8_BINTRAMODES-1]) { memcpy(p, vp8_bmode_prob, sizeof(vp8_bmode_prob)); }