diff options
Diffstat (limited to 'media/libvpx/libvpx/vp8/common/entropymode.c')
| -rw-r--r-- | media/libvpx/libvpx/vp8/common/entropymode.c | 104 |
1 files changed, 104 insertions, 0 deletions
diff --git a/media/libvpx/libvpx/vp8/common/entropymode.c b/media/libvpx/libvpx/vp8/common/entropymode.c new file mode 100644 index 0000000000..f61e0c2e2b --- /dev/null +++ b/media/libvpx/libvpx/vp8/common/entropymode.c @@ -0,0 +1,104 @@ +/* + * 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 dest[VP8_BINTRAMODES - 1]) { + memcpy(dest, vp8_bmode_prob, sizeof(vp8_bmode_prob)); +} |