| /* |
| * 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 int16_t av1_coeff_band_4x4[16] = { 0, 1, 2, 3, 4, 5, 6, 7, |
| 8, 9, 10, 11, 12, 13, 14, 15 }; |
| |
| const int16_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 int16_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 int16_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, |
| }; |
| |
| void av1_init_txb_probs(FRAME_CONTEXT *fc) { |
| TX_SIZE tx_size; |
| int plane, ctx, level; |
| |
| // 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; |
| } |
| } |
| |
| // 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 (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; |
| } |
| } |
| } |
| } |
| |
| 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) { |
| 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; |
| } |
| |
| 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) { |
| 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; |
| } |
| } |
| } |
| } |
| #if CONFIG_CTX1D |
| for (tx_size = 0; tx_size < TX_SIZES; ++tx_size) { |
| for (plane = 0; plane < PLANE_TYPES; ++plane) { |
| for (int tx_class = 0; tx_class < TX_CLASSES; ++tx_class) { |
| fc->eob_mode_cdf[tx_size][plane][tx_class][0] = AOM_ICDF( |
| 128 * (aom_cdf_prob)fc->eob_mode[tx_size][plane][tx_class]); |
| fc->eob_mode_cdf[tx_size][plane][tx_class][1] = AOM_ICDF(32768); |
| fc->eob_mode_cdf[tx_size][plane][tx_class][2] = 0; |
| } |
| } |
| } |
| for (tx_size = 0; tx_size < TX_SIZES; ++tx_size) { |
| for (plane = 0; plane < PLANE_TYPES; ++plane) { |
| for (int tx_class = 0; tx_class < TX_CLASSES; ++tx_class) { |
| for (ctx = 0; ctx < EMPTY_LINE_CONTEXTS; ++ctx) { |
| fc->empty_line_cdf[tx_size][plane][tx_class][ctx][0] = AOM_ICDF( |
| 128 * |
| (aom_cdf_prob)fc->empty_line[tx_size][plane][tx_class][ctx]); |
| fc->empty_line_cdf[tx_size][plane][tx_class][ctx][1] = |
| AOM_ICDF(32768); |
| fc->empty_line_cdf[tx_size][plane][tx_class][ctx][2] = 0; |
| } |
| } |
| } |
| } |
| for (tx_size = 0; tx_size < TX_SIZES; ++tx_size) { |
| for (plane = 0; plane < PLANE_TYPES; ++plane) { |
| for (int tx_class = 0; tx_class < TX_CLASSES; ++tx_class) { |
| for (ctx = 0; ctx < HV_EOB_CONTEXTS; ++ctx) { |
| fc->hv_eob_cdf[tx_size][plane][tx_class][ctx][0] = AOM_ICDF( |
| 128 * (aom_cdf_prob)fc->hv_eob[tx_size][plane][tx_class][ctx]); |
| fc->hv_eob_cdf[tx_size][plane][tx_class][ctx][1] = AOM_ICDF(32768); |
| fc->hv_eob_cdf[tx_size][plane][tx_class][ctx][2] = 0; |
| } |
| } |
| } |
| } |
| #endif // CONFIG_CTX1D |
| } |
| |
| 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 }; |
| |
| int av1_get_eob_pos_ctx(TX_TYPE tx_type, int eob_token) { |
| int offset = 0; |
| int tx_class = get_tx_class(tx_type); |
| if (tx_class != TX_CLASS_2D) offset = 11; |
| return eob_token - 1 + offset; |
| } |
| |
| int16_t get_eob_pos_token(int eob, int16_t *extra) { |
| int16_t t; |
| |
| if (eob < 3) { |
| t = eob; |
| } else { |
| t = 3; |
| if (eob > 4) { |
| t++; |
| } |
| if (eob > 8) { |
| t++; |
| } |
| if (eob > 16) { |
| t++; |
| } |
| if (eob > 32) { |
| t++; |
| } |
| if (eob > 64) { |
| t++; |
| } |
| if (eob > 128) { |
| t++; |
| } |
| if (eob > 256) { |
| t++; |
| } |
| if (eob > 512) { |
| t++; |
| } |
| } |
| |
| *extra = eob - k_eob_group_start[t]; |
| |
| return t; |
| } |
