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aomedia/aom/fa00507467e487aa4a/./av1/common/txb_common.c
blob: 3b6678e9b8a5acff080a95c0723c91003158f382 [file]
/*
* Copyright (c) 2017, Alliance for Open Media. All rights reserved
*
* This source code is subject to the terms of the BSD 2 Clause License and
* the Alliance for Open Media Patent License 1.0. If the BSD 2 Clause License
* was not distributed with this source code in the LICENSE file, you can
* obtain it at www.aomedia.org/license/software. If the Alliance for Open
* Media Patent License 1.0 was not distributed with this source code in the
* PATENTS file, you can obtain it at www.aomedia.org/license/patent.
*/
#include "aom/aom_integer.h"
#include "av1/common/onyxc_int.h"
#include "av1/common/txb_common.h"
const int8_t av1_coeff_band_4x4[16] = { 0, 1, 2, 3, 4, 5, 6, 7,
8, 9, 10, 11, 12, 13, 14, 15 };
const int8_t av1_coeff_band_8x8[64] = {
0, 1, 2, 2, 3, 3, 4, 4, 5, 6, 2, 2, 3, 3, 4, 4,
7, 7, 8, 8, 9, 9, 10, 10, 7, 7, 8, 8, 9, 9, 10, 10,
11, 11, 12, 12, 13, 13, 14, 14, 11, 11, 12, 12, 13, 13, 14, 14,
15, 15, 16, 16, 17, 17, 18, 18, 15, 15, 16, 16, 17, 17, 18, 18,
};
const int8_t av1_coeff_band_16x16[256] = {
0, 1, 4, 4, 7, 7, 7, 7, 8, 8, 8, 8, 9, 9, 9, 9, 2, 3, 4,
4, 7, 7, 7, 7, 8, 8, 8, 8, 9, 9, 9, 9, 5, 5, 6, 6, 7, 7,
7, 7, 8, 8, 8, 8, 9, 9, 9, 9, 5, 5, 6, 6, 7, 7, 7, 7, 8,
8, 8, 8, 9, 9, 9, 9, 10, 10, 10, 10, 11, 11, 11, 11, 12, 12, 12, 12,
13, 13, 13, 13, 10, 10, 10, 10, 11, 11, 11, 11, 12, 12, 12, 12, 13, 13, 13,
13, 10, 10, 10, 10, 11, 11, 11, 11, 12, 12, 12, 12, 13, 13, 13, 13, 10, 10,
10, 10, 11, 11, 11, 11, 12, 12, 12, 12, 13, 13, 13, 13, 14, 14, 14, 14, 15,
15, 15, 15, 16, 16, 16, 16, 17, 17, 17, 17, 14, 14, 14, 14, 15, 15, 15, 15,
16, 16, 16, 16, 17, 17, 17, 17, 14, 14, 14, 14, 15, 15, 15, 15, 16, 16, 16,
16, 17, 17, 17, 17, 14, 14, 14, 14, 15, 15, 15, 15, 16, 16, 16, 16, 17, 17,
17, 17, 18, 18, 18, 18, 19, 19, 19, 19, 20, 20, 20, 20, 21, 21, 21, 21, 18,
18, 18, 18, 19, 19, 19, 19, 20, 20, 20, 20, 21, 21, 21, 21, 18, 18, 18, 18,
19, 19, 19, 19, 20, 20, 20, 20, 21, 21, 21, 21, 18, 18, 18, 18, 19, 19, 19,
19, 20, 20, 20, 20, 21, 21, 21, 21,
};
const int8_t av1_coeff_band_32x32[1024] = {
0, 1, 4, 4, 7, 7, 7, 7, 10, 10, 10, 10, 10, 10, 10, 10, 11, 11, 11,
11, 11, 11, 11, 11, 12, 12, 12, 12, 12, 12, 12, 12, 2, 3, 4, 4, 7, 7,
7, 7, 10, 10, 10, 10, 10, 10, 10, 10, 11, 11, 11, 11, 11, 11, 11, 11, 12,
12, 12, 12, 12, 12, 12, 12, 5, 5, 6, 6, 7, 7, 7, 7, 10, 10, 10, 10,
10, 10, 10, 10, 11, 11, 11, 11, 11, 11, 11, 11, 12, 12, 12, 12, 12, 12, 12,
12, 5, 5, 6, 6, 7, 7, 7, 7, 10, 10, 10, 10, 10, 10, 10, 10, 11, 11,
11, 11, 11, 11, 11, 11, 12, 12, 12, 12, 12, 12, 12, 12, 8, 8, 8, 8, 9,
9, 9, 9, 10, 10, 10, 10, 10, 10, 10, 10, 11, 11, 11, 11, 11, 11, 11, 11,
12, 12, 12, 12, 12, 12, 12, 12, 8, 8, 8, 8, 9, 9, 9, 9, 10, 10, 10,
10, 10, 10, 10, 10, 11, 11, 11, 11, 11, 11, 11, 11, 12, 12, 12, 12, 12, 12,
12, 12, 8, 8, 8, 8, 9, 9, 9, 9, 10, 10, 10, 10, 10, 10, 10, 10, 11,
11, 11, 11, 11, 11, 11, 11, 12, 12, 12, 12, 12, 12, 12, 12, 8, 8, 8, 8,
9, 9, 9, 9, 10, 10, 10, 10, 10, 10, 10, 10, 11, 11, 11, 11, 11, 11, 11,
11, 12, 12, 12, 12, 12, 12, 12, 12, 13, 13, 13, 13, 13, 13, 13, 13, 14, 14,
14, 14, 14, 14, 14, 14, 15, 15, 15, 15, 15, 15, 15, 15, 16, 16, 16, 16, 16,
16, 16, 16, 13, 13, 13, 13, 13, 13, 13, 13, 14, 14, 14, 14, 14, 14, 14, 14,
15, 15, 15, 15, 15, 15, 15, 15, 16, 16, 16, 16, 16, 16, 16, 16, 13, 13, 13,
13, 13, 13, 13, 13, 14, 14, 14, 14, 14, 14, 14, 14, 15, 15, 15, 15, 15, 15,
15, 15, 16, 16, 16, 16, 16, 16, 16, 16, 13, 13, 13, 13, 13, 13, 13, 13, 14,
14, 14, 14, 14, 14, 14, 14, 15, 15, 15, 15, 15, 15, 15, 15, 16, 16, 16, 16,
16, 16, 16, 16, 13, 13, 13, 13, 13, 13, 13, 13, 14, 14, 14, 14, 14, 14, 14,
14, 15, 15, 15, 15, 15, 15, 15, 15, 16, 16, 16, 16, 16, 16, 16, 16, 13, 13,
13, 13, 13, 13, 13, 13, 14, 14, 14, 14, 14, 14, 14, 14, 15, 15, 15, 15, 15,
15, 15, 15, 16, 16, 16, 16, 16, 16, 16, 16, 13, 13, 13, 13, 13, 13, 13, 13,
14, 14, 14, 14, 14, 14, 14, 14, 15, 15, 15, 15, 15, 15, 15, 15, 16, 16, 16,
16, 16, 16, 16, 16, 13, 13, 13, 13, 13, 13, 13, 13, 14, 14, 14, 14, 14, 14,
14, 14, 15, 15, 15, 15, 15, 15, 15, 15, 16, 16, 16, 16, 16, 16, 16, 16, 17,
17, 17, 17, 17, 17, 17, 17, 18, 18, 18, 18, 18, 18, 18, 18, 19, 19, 19, 19,
19, 19, 19, 19, 20, 20, 20, 20, 20, 20, 20, 20, 17, 17, 17, 17, 17, 17, 17,
17, 18, 18, 18, 18, 18, 18, 18, 18, 19, 19, 19, 19, 19, 19, 19, 19, 20, 20,
20, 20, 20, 20, 20, 20, 17, 17, 17, 17, 17, 17, 17, 17, 18, 18, 18, 18, 18,
18, 18, 18, 19, 19, 19, 19, 19, 19, 19, 19, 20, 20, 20, 20, 20, 20, 20, 20,
17, 17, 17, 17, 17, 17, 17, 17, 18, 18, 18, 18, 18, 18, 18, 18, 19, 19, 19,
19, 19, 19, 19, 19, 20, 20, 20, 20, 20, 20, 20, 20, 17, 17, 17, 17, 17, 17,
17, 17, 18, 18, 18, 18, 18, 18, 18, 18, 19, 19, 19, 19, 19, 19, 19, 19, 20,
20, 20, 20, 20, 20, 20, 20, 17, 17, 17, 17, 17, 17, 17, 17, 18, 18, 18, 18,
18, 18, 18, 18, 19, 19, 19, 19, 19, 19, 19, 19, 20, 20, 20, 20, 20, 20, 20,
20, 17, 17, 17, 17, 17, 17, 17, 17, 18, 18, 18, 18, 18, 18, 18, 18, 19, 19,
19, 19, 19, 19, 19, 19, 20, 20, 20, 20, 20, 20, 20, 20, 17, 17, 17, 17, 17,
17, 17, 17, 18, 18, 18, 18, 18, 18, 18, 18, 19, 19, 19, 19, 19, 19, 19, 19,
20, 20, 20, 20, 20, 20, 20, 20, 21, 21, 21, 21, 21, 21, 21, 21, 22, 22, 22,
22, 22, 22, 22, 22, 23, 23, 23, 23, 23, 23, 23, 23, 24, 24, 24, 24, 24, 24,
24, 24, 21, 21, 21, 21, 21, 21, 21, 21, 22, 22, 22, 22, 22, 22, 22, 22, 23,
23, 23, 23, 23, 23, 23, 23, 24, 24, 24, 24, 24, 24, 24, 24, 21, 21, 21, 21,
21, 21, 21, 21, 22, 22, 22, 22, 22, 22, 22, 22, 23, 23, 23, 23, 23, 23, 23,
23, 24, 24, 24, 24, 24, 24, 24, 24, 21, 21, 21, 21, 21, 21, 21, 21, 22, 22,
22, 22, 22, 22, 22, 22, 23, 23, 23, 23, 23, 23, 23, 23, 24, 24, 24, 24, 24,
24, 24, 24, 21, 21, 21, 21, 21, 21, 21, 21, 22, 22, 22, 22, 22, 22, 22, 22,
23, 23, 23, 23, 23, 23, 23, 23, 24, 24, 24, 24, 24, 24, 24, 24, 21, 21, 21,
21, 21, 21, 21, 21, 22, 22, 22, 22, 22, 22, 22, 22, 23, 23, 23, 23, 23, 23,
23, 23, 24, 24, 24, 24, 24, 24, 24, 24, 21, 21, 21, 21, 21, 21, 21, 21, 22,
22, 22, 22, 22, 22, 22, 22, 23, 23, 23, 23, 23, 23, 23, 23, 24, 24, 24, 24,
24, 24, 24, 24, 21, 21, 21, 21, 21, 21, 21, 21, 22, 22, 22, 22, 22, 22, 22,
22, 23, 23, 23, 23, 23, 23, 23, 23, 24, 24, 24, 24, 24, 24, 24, 24,
};
// The ctx offset table when TX is TX_CLASS_2D.
// TX col and row indices are clamped to 4.
const int8_t av1_nz_map_ctx_offset[TX_SIZES_ALL][5][5] = {
// TX_4X4
{ { 0, 1, 6, 6, 0 },
{ 1, 6, 6, 21, 0 },
{ 6, 6, 21, 21, 0 },
{ 6, 21, 21, 21, 0 },
{ 0, 0, 0, 0, 0 } },
// TX_8X8
{ { 0, 1, 6, 6, 21 },
{ 1, 6, 6, 21, 21 },
{ 6, 6, 21, 21, 21 },
{ 6, 21, 21, 21, 21 },
{ 21, 21, 21, 21, 21 } },
// TX_16X16
{ { 0, 1, 6, 6, 21 },
{ 1, 6, 6, 21, 21 },
{ 6, 6, 21, 21, 21 },
{ 6, 21, 21, 21, 21 },
{ 21, 21, 21, 21, 21 } },
// TX_32X32
{ { 0, 1, 6, 6, 21 },
{ 1, 6, 6, 21, 21 },
{ 6, 6, 21, 21, 21 },
{ 6, 21, 21, 21, 21 },
{ 21, 21, 21, 21, 21 } },
#if CONFIG_TX64X64
// TX_64X64
{ { 0, 11, 11, 11, 11 },
{ 11, 11, 11, 11, 11 },
{ 6, 6, 21, 21, 21 },
{ 6, 21, 21, 21, 21 },
{ 21, 21, 21, 21, 21 } },
#endif // CONFIG_TX64X64
// TX_4X8
{ { 0, 11, 11, 11, 0 },
{ 11, 11, 11, 11, 0 },
{ 6, 6, 21, 21, 0 },
{ 6, 21, 21, 21, 0 },
{ 21, 21, 21, 21, 0 } },
// TX_8X4
{ { 0, 16, 6, 6, 21 },
{ 16, 16, 6, 21, 21 },
{ 16, 16, 21, 21, 21 },
{ 16, 16, 21, 21, 21 },
{ 0, 0, 0, 0, 0 } },
// TX_8X16
{ { 0, 11, 11, 11, 11 },
{ 11, 11, 11, 11, 11 },
{ 6, 6, 21, 21, 21 },
{ 6, 21, 21, 21, 21 },
{ 21, 21, 21, 21, 21 } },
// TX_16X8
{ { 0, 16, 6, 6, 21 },
{ 16, 16, 6, 21, 21 },
{ 16, 16, 21, 21, 21 },
{ 16, 16, 21, 21, 21 },
{ 16, 16, 21, 21, 21 } },
// TX_16X32
{ { 0, 11, 11, 11, 11 },
{ 11, 11, 11, 11, 11 },
{ 6, 6, 21, 21, 21 },
{ 6, 21, 21, 21, 21 },
{ 21, 21, 21, 21, 21 } },
// TX_32X16
{ { 0, 16, 6, 6, 21 },
{ 16, 16, 6, 21, 21 },
{ 16, 16, 21, 21, 21 },
{ 16, 16, 21, 21, 21 },
{ 16, 16, 21, 21, 21 } },
#if CONFIG_TX64X64
// TX_32X64
{ { 0, 11, 11, 11, 11 },
{ 11, 11, 11, 11, 11 },
{ 6, 6, 21, 21, 21 },
{ 6, 21, 21, 21, 21 },
{ 21, 21, 21, 21, 21 } },
// TX_64X32
{ { 0, 1, 6, 6, 21 },
{ 1, 6, 6, 21, 21 },
{ 6, 6, 21, 21, 21 },
{ 6, 21, 21, 21, 21 },
{ 21, 21, 21, 21, 21 } },
#endif // CONFIG_TX64X64
// TX_4X16
{ { 0, 11, 11, 11, 0 },
{ 11, 11, 11, 11, 0 },
{ 6, 6, 21, 21, 0 },
{ 6, 21, 21, 21, 0 },
{ 21, 21, 21, 21, 0 } },
// TX_16X4
{ { 0, 16, 6, 6, 21 },
{ 16, 16, 6, 21, 21 },
{ 16, 16, 21, 21, 21 },
{ 16, 16, 21, 21, 21 },
{ 0, 0, 0, 0, 0 } },
// TX_8X32
{ { 0, 11, 11, 11, 11 },
{ 11, 11, 11, 11, 11 },
{ 6, 6, 21, 21, 21 },
{ 6, 21, 21, 21, 21 },
{ 21, 21, 21, 21, 21 } },
// TX_32X8
{ { 0, 16, 6, 6, 21 },
{ 16, 16, 6, 21, 21 },
{ 16, 16, 21, 21, 21 },
{ 16, 16, 21, 21, 21 },
{ 16, 16, 21, 21, 21 } },
#if CONFIG_TX64X64
// TX_16X64
{ { 0, 11, 11, 11, 11 },
{ 11, 11, 11, 11, 11 },
{ 6, 6, 21, 21, 21 },
{ 6, 21, 21, 21, 21 },
{ 21, 21, 21, 21, 21 } },
// TX_64X16
{ { 0, 16, 6, 6, 21 },
{ 16, 16, 6, 21, 21 },
{ 16, 16, 21, 21, 21 },
{ 16, 16, 21, 21, 21 },
{ 16, 16, 21, 21, 21 } }
#endif // CONFIG_TX64X64
};
void av1_init_txb_probs(FRAME_CONTEXT *fc) {
TX_SIZE tx_size;
int plane, ctx;
// Update probability models for transform block skip flag
for (tx_size = 0; tx_size < TX_SIZES; ++tx_size) {
for (ctx = 0; ctx < TXB_SKIP_CONTEXTS; ++ctx) {
fc->txb_skip_cdf[tx_size][ctx][0] =
AOM_ICDF(128 * (aom_cdf_prob)fc->txb_skip[tx_size][ctx]);
fc->txb_skip_cdf[tx_size][ctx][1] = AOM_ICDF(32768);
fc->txb_skip_cdf[tx_size][ctx][2] = 0;
}
}
for (plane = 0; plane < PLANE_TYPES; ++plane) {
for (ctx = 0; ctx < DC_SIGN_CONTEXTS; ++ctx) {
fc->dc_sign_cdf[plane][ctx][0] =
AOM_ICDF(128 * (aom_cdf_prob)fc->dc_sign[plane][ctx]);
fc->dc_sign_cdf[plane][ctx][1] = AOM_ICDF(32768);
fc->dc_sign_cdf[plane][ctx][2] = 0;
}
}
#if CONFIG_LV_MAP_MULTI
for (tx_size = 0; tx_size < TX_SIZES; ++tx_size) {
for (plane = 0; plane < PLANE_TYPES; ++plane) {
#if USE_BASE_EOB_ALPHABET
for (ctx = 0; ctx < SIG_COEF_CONTEXTS_EOB; ++ctx) {
int p = fc->coeff_base[tx_size][plane][0][SIG_COEF_CONTEXTS -
SIG_COEF_CONTEXTS_EOB + ctx] *
128;
fc->coeff_base_eob_cdf[tx_size][plane][ctx][0] = AOM_ICDF(p);
p += ((32768 - p) *
fc->coeff_base[tx_size][plane][1][SIG_COEF_CONTEXTS -
SIG_COEF_CONTEXTS_EOB + ctx]) >>
8;
fc->coeff_base_eob_cdf[tx_size][plane][ctx][1] = AOM_ICDF(p);
fc->coeff_base_eob_cdf[tx_size][plane][ctx][2] = AOM_ICDF(32768);
fc->coeff_base_eob_cdf[tx_size][plane][ctx][3] = 0;
}
#endif
for (ctx = 0; ctx < COEFF_BASE_CONTEXTS; ++ctx) {
int p = fc->nz_map[tx_size][plane][ctx] * 128;
fc->coeff_base_cdf[tx_size][plane][ctx][0] = AOM_ICDF(p);
p += ((32768 - p) * fc->coeff_base[tx_size][plane][0][ctx]) >> 8;
fc->coeff_base_cdf[tx_size][plane][ctx][1] = AOM_ICDF(p);
p += ((32768 - p) * fc->coeff_base[tx_size][plane][1][ctx]) >> 8;
fc->coeff_base_cdf[tx_size][plane][ctx][2] = AOM_ICDF(p);
fc->coeff_base_cdf[tx_size][plane][ctx][3] = AOM_ICDF(32768);
fc->coeff_base_cdf[tx_size][plane][ctx][4] = 0;
}
}
}
#else
// Update probability models for non-zero coefficient map and eob flag.
for (tx_size = 0; tx_size < TX_SIZES; ++tx_size) {
for (plane = 0; plane < PLANE_TYPES; ++plane) {
for (int level = 0; level < NUM_BASE_LEVELS; ++level) {
for (ctx = 0; ctx < COEFF_BASE_CONTEXTS; ++ctx) {
fc->coeff_base_cdf[tx_size][plane][level][ctx][0] = AOM_ICDF(
128 * (aom_cdf_prob)fc->coeff_base[tx_size][plane][level][ctx]);
fc->coeff_base_cdf[tx_size][plane][level][ctx][1] = AOM_ICDF(32768);
fc->coeff_base_cdf[tx_size][plane][level][ctx][2] = 0;
}
}
}
}
#endif
for (tx_size = 0; tx_size < TX_SIZES; ++tx_size) {
for (plane = 0; plane < PLANE_TYPES; ++plane) {
for (ctx = 0; ctx < SIG_COEF_CONTEXTS; ++ctx) {
#if !CONFIG_LV_MAP_MULTI
fc->nz_map_cdf[tx_size][plane][ctx][0] =
AOM_ICDF(128 * (aom_cdf_prob)fc->nz_map[tx_size][plane][ctx]);
fc->nz_map_cdf[tx_size][plane][ctx][1] = AOM_ICDF(32768);
fc->nz_map_cdf[tx_size][plane][ctx][2] = 0;
#endif
}
for (ctx = 0; ctx < EOB_COEF_CONTEXTS; ++ctx) {
fc->eob_flag_cdf[tx_size][plane][ctx][0] =
AOM_ICDF(128 * (aom_cdf_prob)fc->eob_flag[tx_size][plane][ctx]);
fc->eob_flag_cdf[tx_size][plane][ctx][1] = AOM_ICDF(32768);
fc->eob_flag_cdf[tx_size][plane][ctx][2] = 0;
}
for (ctx = 0; ctx < EOB_COEF_CONTEXTS; ++ctx) {
fc->eob_extra_cdf[tx_size][plane][ctx][0] =
AOM_ICDF(128 * (aom_cdf_prob)fc->eob_extra[tx_size][plane][ctx]);
fc->eob_extra_cdf[tx_size][plane][ctx][1] = AOM_ICDF(32768);
fc->eob_extra_cdf[tx_size][plane][ctx][2] = 0;
}
}
}
for (tx_size = 0; tx_size < TX_SIZES; ++tx_size) {
for (plane = 0; plane < PLANE_TYPES; ++plane) {
#if CONFIG_LV_MAP_MULTI
for (ctx = 0; ctx < LEVEL_CONTEXTS; ++ctx) {
int p = 32768 - fc->coeff_lps[tx_size][plane][0][ctx] * 128;
int sum = p;
fc->coeff_br_cdf[tx_size][plane][ctx][0] = AOM_ICDF(sum);
p = 32768 - fc->coeff_lps[tx_size][plane][1][ctx] * 128;
sum += ((32768 - sum) * p) >> 15;
fc->coeff_br_cdf[tx_size][plane][ctx][1] = AOM_ICDF(sum);
p = 32768 - fc->coeff_lps[tx_size][plane][2][ctx] * 128;
sum += ((32768 - sum) * p) >> 15;
fc->coeff_br_cdf[tx_size][plane][ctx][2] = AOM_ICDF(sum);
fc->coeff_br_cdf[tx_size][plane][ctx][3] = AOM_ICDF(32768);
fc->coeff_br_cdf[tx_size][plane][ctx][4] = 0;
// printf("br_cdf: %d %d %2d : %3d %3d %3d\n", tx_size, plane, ctx,
// fc->coeff_br_cdf[tx_size][plane][ctx][0] >> 7,
// fc->coeff_br_cdf[tx_size][plane][ctx][1] >> 7,
// fc->coeff_br_cdf[tx_size][plane][ctx][2] >> 7);
}
#else
for (ctx = 0; ctx < LEVEL_CONTEXTS; ++ctx) {
fc->coeff_lps_cdf[tx_size][plane][ctx][0] =
AOM_ICDF(128 * (aom_cdf_prob)fc->coeff_lps[tx_size][plane][ctx]);
fc->coeff_lps_cdf[tx_size][plane][ctx][1] = AOM_ICDF(32768);
fc->coeff_lps_cdf[tx_size][plane][ctx][2] = 0;
}
for (int br = 0; br < BASE_RANGE_SETS; ++br) {
for (ctx = 0; ctx < LEVEL_CONTEXTS; ++ctx) {
fc->coeff_br_cdf[tx_size][plane][br][ctx][0] = AOM_ICDF(
128 * (aom_cdf_prob)fc->coeff_br[tx_size][plane][br][ctx]);
fc->coeff_br_cdf[tx_size][plane][br][ctx][1] = AOM_ICDF(32768);
fc->coeff_br_cdf[tx_size][plane][br][ctx][2] = 0;
}
}
#endif
}
}
}
void av1_init_lv_map(AV1_COMMON *cm) {
LV_MAP_CTX_TABLE *coeff_ctx_table = &cm->coeff_ctx_table;
for (int row = 0; row < 2; ++row) {
for (int col = 0; col < 2; ++col) {
for (int sig_mag = 0; sig_mag < 3; ++sig_mag) {
for (int count = 0; count < BASE_CONTEXT_POSITION_NUM + 1; ++count) {
if (row == 0 && col == 0 && count > 5) continue;
if ((row == 0 || col == 0) && count > 8) continue;
coeff_ctx_table->base_ctx_table[row][col][sig_mag][count] =
get_base_ctx_from_count_mag(row, col, count, sig_mag);
}
}
}
}
}
const int16_t k_eob_group_start[12] = { 0, 1, 2, 3, 5, 9,
17, 33, 65, 129, 257, 513 };
const int16_t k_eob_offset_bits[12] = { 0, 0, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9 };
// Note: because of the SSE2 optimization, levels[] must be in the range [0,
// 127], inclusive.
void av1_get_base_level_counts(const uint8_t *const levels,
const int level_minus_1, const int width,
const int height, uint8_t *const level_counts) {
const int stride = width + TX_PAD_HOR;
for (int row = 0; row < height; ++row) {
for (int col = 0; col < width; ++col) {
level_counts[row * width + col] =
get_level_count(levels, stride, row, col, level_minus_1,
base_ref_offset, BASE_CONTEXT_POSITION_NUM);
}
}
}
// Note: because of the SSE2 optimization, levels[] must be in the range [0,
// 127], inclusive.
void av1_get_br_level_counts_c(const uint8_t *const levels, const int width,
const int height, uint8_t *const level_counts) {
const int stride = width + TX_PAD_HOR;
const int level_minus_1 = NUM_BASE_LEVELS;
for (int row = 0; row < height; ++row) {
for (int col = 0; col < width; ++col) {
level_counts[row * width + col] =
get_level_count(levels, stride, row, col, level_minus_1,
br_ref_offset, BR_CONTEXT_POSITION_NUM);
}
}
}