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Diffstat (limited to 'media/libvpx/vp8/common/entropymode.c')
| -rw-r--r-- | media/libvpx/vp8/common/entropymode.c | 171 |
1 files changed, 171 insertions, 0 deletions
diff --git a/media/libvpx/vp8/common/entropymode.c b/media/libvpx/vp8/common/entropymode.c new file mode 100644 index 000000000..8981a8d3c --- /dev/null +++ b/media/libvpx/vp8/common/entropymode.c @@ -0,0 +1,171 @@ +/* + * 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)); +} + |