| Index: third_party/libvpx/source/libvpx/vp8/common/entropy.c
|
| diff --git a/third_party/libvpx/source/libvpx/vp8/common/entropy.c b/third_party/libvpx/source/libvpx/vp8/common/entropy.c
|
| new file mode 100644
|
| index 0000000000000000000000000000000000000000..c00e565f06370b126e14fc91120ebd32df17b942
|
| --- /dev/null
|
| +++ b/third_party/libvpx/source/libvpx/vp8/common/entropy.c
|
| @@ -0,0 +1,188 @@
|
| +/*
|
| + * 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 "entropy.h"
|
| +#include "blockd.h"
|
| +#include "onyxc_int.h"
|
| +#include "vpx_mem/vpx_mem.h"
|
| +
|
| +#include "coefupdateprobs.h"
|
| +
|
| +DECLARE_ALIGNED(16, const unsigned char, vp8_norm[256]) =
|
| +{
|
| + 0, 7, 6, 6, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4,
|
| + 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3,
|
| + 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
|
| + 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
|
| + 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
|
| + 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
|
| + 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
|
| + 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
|
| + 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
|
| + 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
|
| + 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
|
| + 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
|
| + 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
|
| + 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
|
| + 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
|
| + 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0
|
| +};
|
| +
|
| +DECLARE_ALIGNED(16, const unsigned char, vp8_coef_bands[16]) =
|
| +{ 0, 1, 2, 3, 6, 4, 5, 6, 6, 6, 6, 6, 6, 6, 6, 7};
|
| +
|
| +DECLARE_ALIGNED(16, const unsigned char,
|
| + vp8_prev_token_class[MAX_ENTROPY_TOKENS]) =
|
| +{ 0, 1, 2, 2, 2, 2, 2, 2, 2, 2, 2, 0};
|
| +
|
| +DECLARE_ALIGNED(16, const int, vp8_default_zig_zag1d[16]) =
|
| +{
|
| + 0, 1, 4, 8,
|
| + 5, 2, 3, 6,
|
| + 9, 12, 13, 10,
|
| + 7, 11, 14, 15,
|
| +};
|
| +
|
| +DECLARE_ALIGNED(16, const short, vp8_default_inv_zig_zag[16]) =
|
| +{
|
| + 1, 2, 6, 7,
|
| + 3, 5, 8, 13,
|
| + 4, 9, 12, 14,
|
| + 10, 11, 15, 16
|
| +};
|
| +
|
| +/* vp8_default_zig_zag_mask generated with:
|
| +
|
| + void vp8_init_scan_order_mask()
|
| + {
|
| + int i;
|
| +
|
| + for (i = 0; i < 16; i++)
|
| + {
|
| + vp8_default_zig_zag_mask[vp8_default_zig_zag1d[i]] = 1 << i;
|
| + }
|
| +
|
| + }
|
| +*/
|
| +DECLARE_ALIGNED(16, const short, vp8_default_zig_zag_mask[16]) =
|
| +{
|
| + 1, 2, 32, 64,
|
| + 4, 16, 128, 4096,
|
| + 8, 256, 2048, 8192,
|
| + 512, 1024, 16384, -32768
|
| +};
|
| +
|
| +const int vp8_mb_feature_data_bits[MB_LVL_MAX] = {7, 6};
|
| +
|
| +/* Array indices are identical to previously-existing CONTEXT_NODE indices */
|
| +
|
| +const vp8_tree_index vp8_coef_tree[ 22] = /* corresponding _CONTEXT_NODEs */
|
| +{
|
| + -DCT_EOB_TOKEN, 2, /* 0 = EOB */
|
| + -ZERO_TOKEN, 4, /* 1 = ZERO */
|
| + -ONE_TOKEN, 6, /* 2 = ONE */
|
| + 8, 12, /* 3 = LOW_VAL */
|
| + -TWO_TOKEN, 10, /* 4 = TWO */
|
| + -THREE_TOKEN, -FOUR_TOKEN, /* 5 = THREE */
|
| + 14, 16, /* 6 = HIGH_LOW */
|
| + -DCT_VAL_CATEGORY1, -DCT_VAL_CATEGORY2, /* 7 = CAT_ONE */
|
| + 18, 20, /* 8 = CAT_THREEFOUR */
|
| + -DCT_VAL_CATEGORY3, -DCT_VAL_CATEGORY4, /* 9 = CAT_THREE */
|
| + -DCT_VAL_CATEGORY5, -DCT_VAL_CATEGORY6 /* 10 = CAT_FIVE */
|
| +};
|
| +
|
| +/* vp8_coef_encodings generated with:
|
| + vp8_tokens_from_tree(vp8_coef_encodings, vp8_coef_tree);
|
| +*/
|
| +vp8_token vp8_coef_encodings[MAX_ENTROPY_TOKENS] =
|
| +{
|
| + {2, 2},
|
| + {6, 3},
|
| + {28, 5},
|
| + {58, 6},
|
| + {59, 6},
|
| + {60, 6},
|
| + {61, 6},
|
| + {124, 7},
|
| + {125, 7},
|
| + {126, 7},
|
| + {127, 7},
|
| + {0, 1}
|
| +};
|
| +
|
| +/* Trees for extra bits. Probabilities are constant and
|
| + do not depend on previously encoded bits */
|
| +
|
| +static const vp8_prob Pcat1[] = { 159};
|
| +static const vp8_prob Pcat2[] = { 165, 145};
|
| +static const vp8_prob Pcat3[] = { 173, 148, 140};
|
| +static const vp8_prob Pcat4[] = { 176, 155, 140, 135};
|
| +static const vp8_prob Pcat5[] = { 180, 157, 141, 134, 130};
|
| +static const vp8_prob Pcat6[] =
|
| +{ 254, 254, 243, 230, 196, 177, 153, 140, 133, 130, 129};
|
| +
|
| +
|
| +/* tree index tables generated with:
|
| +
|
| + void init_bit_tree(vp8_tree_index *p, int n)
|
| + {
|
| + int i = 0;
|
| +
|
| + while (++i < n)
|
| + {
|
| + p[0] = p[1] = i << 1;
|
| + p += 2;
|
| + }
|
| +
|
| + p[0] = p[1] = 0;
|
| + }
|
| +
|
| + void init_bit_trees()
|
| + {
|
| + init_bit_tree(cat1, 1);
|
| + init_bit_tree(cat2, 2);
|
| + init_bit_tree(cat3, 3);
|
| + init_bit_tree(cat4, 4);
|
| + init_bit_tree(cat5, 5);
|
| + init_bit_tree(cat6, 11);
|
| + }
|
| +*/
|
| +
|
| +static const vp8_tree_index cat1[2] = { 0, 0 };
|
| +static const vp8_tree_index cat2[4] = { 2, 2, 0, 0 };
|
| +static const vp8_tree_index cat3[6] = { 2, 2, 4, 4, 0, 0 };
|
| +static const vp8_tree_index cat4[8] = { 2, 2, 4, 4, 6, 6, 0, 0 };
|
| +static const vp8_tree_index cat5[10] = { 2, 2, 4, 4, 6, 6, 8, 8, 0, 0 };
|
| +static const vp8_tree_index cat6[22] = { 2, 2, 4, 4, 6, 6, 8, 8, 10, 10, 12, 12,
|
| + 14, 14, 16, 16, 18, 18, 20, 20, 0, 0 };
|
| +
|
| +const vp8_extra_bit_struct vp8_extra_bits[12] =
|
| +{
|
| + { 0, 0, 0, 0},
|
| + { 0, 0, 0, 1},
|
| + { 0, 0, 0, 2},
|
| + { 0, 0, 0, 3},
|
| + { 0, 0, 0, 4},
|
| + { cat1, Pcat1, 1, 5},
|
| + { cat2, Pcat2, 2, 7},
|
| + { cat3, Pcat3, 3, 11},
|
| + { cat4, Pcat4, 4, 19},
|
| + { cat5, Pcat5, 5, 35},
|
| + { cat6, Pcat6, 11, 67},
|
| + { 0, 0, 0, 0}
|
| +};
|
| +
|
| +#include "default_coef_probs.h"
|
| +
|
| +void vp8_default_coef_probs(VP8_COMMON *pc)
|
| +{
|
| + memcpy(pc->fc.coef_probs, default_coef_probs, sizeof(default_coef_probs));
|
| +}
|
| +
|
|
|