1 /* 2 * Copyright (c) 2010 The WebM project authors. All Rights Reserved. 3 * 4 * Use of this source code is governed by a BSD-style license 5 * that can be found in the LICENSE file in the root of the source 6 * tree. An additional intellectual property rights grant can be found 7 * in the file PATENTS. All contributing project authors may 8 * be found in the AUTHORS file in the root of the source tree. 9 */ 10 11 #define USE_PREBUILT_TABLES 12 13 #include "entropymode.h" 14 #include "entropy.h" 15 #include "vpx_mem/vpx_mem.h" 16 17 #include "vp8_entropymodedata.h" 18 19 int vp8_mv_cont(const int_mv *l, const int_mv *a) { 20 int lez = (l->as_int == 0); 21 int aez = (a->as_int == 0); 22 int lea = (l->as_int == a->as_int); 23 24 if (lea && lez) return SUBMVREF_LEFT_ABOVE_ZED; 25 26 if (lea) return SUBMVREF_LEFT_ABOVE_SAME; 27 28 if (aez) return SUBMVREF_ABOVE_ZED; 29 30 if (lez) return SUBMVREF_LEFT_ZED; 31 32 return SUBMVREF_NORMAL; 33 } 34 35 static const vp8_prob sub_mv_ref_prob[VP8_SUBMVREFS - 1] = { 180, 162, 25 }; 36 37 const vp8_prob vp8_sub_mv_ref_prob2[SUBMVREF_COUNT][VP8_SUBMVREFS - 1] = { 38 { 147, 136, 18 }, 39 { 106, 145, 1 }, 40 { 179, 121, 1 }, 41 { 223, 1, 34 }, 42 { 208, 1, 1 } 43 }; 44 45 const vp8_mbsplit vp8_mbsplits[VP8_NUMMBSPLITS] = { 46 { 0, 0, 0, 0, 0, 0, 0, 0, 1, 1, 1, 1, 1, 1, 1, 1 }, 47 { 0, 0, 1, 1, 0, 0, 1, 1, 0, 0, 1, 1, 0, 0, 1, 1 }, 48 { 0, 0, 1, 1, 0, 0, 1, 1, 2, 2, 3, 3, 2, 2, 3, 3 }, 49 { 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15 } 50 }; 51 52 const int vp8_mbsplit_count[VP8_NUMMBSPLITS] = { 2, 2, 4, 16 }; 53 54 const vp8_prob vp8_mbsplit_probs[VP8_NUMMBSPLITS - 1] = { 110, 111, 150 }; 55 56 /* Array indices are identical to previously-existing INTRAMODECONTEXTNODES. */ 57 58 const vp8_tree_index vp8_bmode_tree[18] = /* INTRAMODECONTEXTNODE value */ 59 { 60 -B_DC_PRED, 2, /* 0 = DC_NODE */ 61 -B_TM_PRED, 4, /* 1 = TM_NODE */ 62 -B_VE_PRED, 6, /* 2 = VE_NODE */ 63 8, 12, /* 3 = COM_NODE */ 64 -B_HE_PRED, 10, /* 4 = HE_NODE */ 65 -B_RD_PRED, -B_VR_PRED, /* 5 = RD_NODE */ 66 -B_LD_PRED, 14, /* 6 = LD_NODE */ 67 -B_VL_PRED, 16, /* 7 = VL_NODE */ 68 -B_HD_PRED, -B_HU_PRED /* 8 = HD_NODE */ 69 }; 70 71 /* Again, these trees use the same probability indices as their 72 explicitly-programmed predecessors. */ 73 74 const vp8_tree_index vp8_ymode_tree[8] = { 75 -DC_PRED, 2, 4, 6, -V_PRED, -H_PRED, -TM_PRED, -B_PRED 76 }; 77 78 const vp8_tree_index vp8_kf_ymode_tree[8] = { 79 -B_PRED, 2, 4, 6, -DC_PRED, -V_PRED, -H_PRED, -TM_PRED 80 }; 81 82 const vp8_tree_index vp8_uv_mode_tree[6] = { -DC_PRED, 2, -V_PRED, 83 4, -H_PRED, -TM_PRED }; 84 85 const vp8_tree_index vp8_mbsplit_tree[6] = { -3, 2, -2, 4, -0, -1 }; 86 87 const vp8_tree_index vp8_mv_ref_tree[8] = { -ZEROMV, 2, -NEARESTMV, 4, 88 -NEARMV, 6, -NEWMV, -SPLITMV }; 89 90 const vp8_tree_index vp8_sub_mv_ref_tree[6] = { -LEFT4X4, 2, -ABOVE4X4, 91 4, -ZERO4X4, -NEW4X4 }; 92 93 const vp8_tree_index vp8_small_mvtree[14] = { 2, 8, 4, 6, -0, -1, -2, 94 -3, 10, 12, -4, -5, -6, -7 }; 95 96 void vp8_init_mbmode_probs(VP8_COMMON *x) { 97 memcpy(x->fc.ymode_prob, vp8_ymode_prob, sizeof(vp8_ymode_prob)); 98 memcpy(x->fc.uv_mode_prob, vp8_uv_mode_prob, sizeof(vp8_uv_mode_prob)); 99 memcpy(x->fc.sub_mv_ref_prob, sub_mv_ref_prob, sizeof(sub_mv_ref_prob)); 100 } 101 102 void vp8_default_bmode_probs(vp8_prob p[VP8_BINTRAMODES - 1]) { 103 memcpy(p, vp8_bmode_prob, sizeof(vp8_bmode_prob)); 104 } 105
