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e55ade2c01
After permuting both length, code as well as symbol tables so that the codes are ordered from left to right in the tree, it became apparent that the length of the codes decreases from left to right. Therefore one can run-length encode the lengths to save space. This commit implements this. Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@gmail.com>
300 lines
11 KiB
C
300 lines
11 KiB
C
/*
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* Musepack SV8 decoder
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* Copyright (c) 2007 Konstantin Shishkov
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*
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* This file is part of FFmpeg.
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*
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* FFmpeg is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2.1 of the License, or (at your option) any later version.
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*
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* FFmpeg is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with FFmpeg; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
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*/
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#ifndef AVCODEC_MPC8HUFF_H
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#define AVCODEC_MPC8HUFF_H
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#include <stdint.h>
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#define MPC8_MAX_VLC_SIZE 256
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#define MPC8_BANDS_SIZE 33
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#define MPC8_BANDS_BITS 9
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static const uint8_t mpc8_bands_syms[MPC8_BANDS_SIZE] = {
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13, 19, 10, 11, 12, 14, 15, 16, 17, 18, 20, 21, 22, 9, 23, 24, 25, 8, 26,
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27, 7, 28, 5, 6, 29, 4, 3, 30, 2, 31, 1, 32, 0
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};
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static const uint8_t mpc8_bands_len_counts[16] = {
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1, 1, 1, 0, 2, 2, 1, 3, 2, 3, 4, 11, 2, 0, 0, 0
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};
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#define MPC8_SCFI0_SIZE 4
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#define MPC8_SCFI0_BITS 3
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static const uint8_t mpc8_scfi0_syms[MPC8_SCFI0_SIZE] = {
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0, 1, 3, 2
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};
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#define MPC8_SCFI1_SIZE 16
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#define MPC8_SCFI1_BITS 7
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static const uint8_t mpc8_scfi1_syms[MPC8_SCFI1_SIZE] = {
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1, 4, 0, 2, 3, 8, 12, 5, 6, 7, 9, 13, 11, 14, 10, 15
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};
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static const uint8_t mpc8_scfi_len_counts[2][16] = {
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{ 1, 1, 2, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 },
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{ 0, 2, 2, 0, 5, 5, 2, 0, 0, 0, 0, 0, 0, 0, 0, 0 },
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};
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#define MPC8_DSCF0_SIZE 64
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#define MPC8_DSCF0_BITS 9
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static const uint8_t mpc8_dscf0_syms[MPC8_DSCF0_SIZE] = {
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58, 59, 60, 61, 62, 63, 55, 56, 57, 0, 1, 2, 53, 54, 3, 4, 5, 50, 51,
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52, 6, 7, 8, 9, 10, 31, 47, 48, 49, 11, 12, 13, 14, 44, 45, 46, 15, 16,
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17, 18, 41, 42, 43, 19, 20, 21, 22, 40, 23, 24, 38, 39, 25, 28, 37, 26, 27,
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29, 30, 32, 36, 33, 34, 35,
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};
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#define MPC8_DSCF1_SIZE 65
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#define MPC8_DSCF1_BITS 9
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static const uint8_t mpc8_dscf1_syms[MPC8_DSCF1_SIZE] = {
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0, 59, 60, 61, 62, 63, 1, 2, 56, 57, 58, 3, 4, 5, 53, 54, 55, 6, 7,
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8, 9, 49, 50, 51, 52, 64, 10, 11, 12, 13, 46, 47, 48, 14, 15, 16, 17, 43,
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44, 45, 18, 19, 20, 41, 42, 21, 22, 39, 40, 23, 24, 38, 25, 37, 26, 35, 36,
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27, 28, 34, 29, 30, 31, 32, 33,
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};
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static const uint8_t mpc8_dscf_len_counts[2][16] = {
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{ 0, 0, 3, 6, 3, 4, 5, 7, 7, 9, 6, 5, 3, 6, 0, 0 },
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{ 0, 0, 5, 3, 3, 2, 3, 4, 5, 7, 7, 9, 6, 5, 6, 0 },
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};
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#define MPC8_RES_SIZE 17
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#define MPC8_RES_BITS 9
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static const uint8_t mpc8_res_syms[2][MPC8_RES_SIZE] = {
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{
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13, 14, 12, 11, 10, 9, 8, 7, 6, 15, 5, 4, 3, 2, 16, 1, 0,
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},
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{
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8, 9, 10, 11, 7, 12, 6, 13, 5, 4, 14, 3, 15, 2, 0, 1, 16,
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}
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};
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static const uint8_t mpc8_res_len_counts[2][16] = {
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{ 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 2 },
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{ 0, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 0, 4, 0, 0 },
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};
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#define MPC8_Q1_SIZE 19
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#define MPC8_Q1_BITS 9
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static const uint8_t mpc8_q1_syms[MPC8_Q1_SIZE] = {
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17, 18, 16, 15, 14, 13, 12, 0, 11, 1, 2, 8, 9, 10, 3, 4, 5, 6, 7,
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};
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static const uint8_t mpc8_q1_len_counts[16] = {
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0, 0, 5, 5, 1, 1, 1, 1, 1, 1, 1, 2, 0, 0, 0, 0
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};
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#define MPC8_Q9UP_SIZE 256
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#define MPC8_Q9UP_BITS 9
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static const uint8_t mpc8_q9up_syms[MPC8_Q9UP_SIZE] = {
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254, 255, 0, 1, 2, 3, 4, 250, 251, 252, 253, 5, 6, 7, 8,
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9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 21, 22, 23, 24, 25,
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26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 41,
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213, 214, 215, 216, 217, 218, 219, 220, 221, 222, 223, 224, 225, 226, 227,
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228, 229, 230, 231, 232, 233, 234, 235, 236, 237, 238, 239, 240, 241, 242,
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243, 244, 245, 246, 247, 248, 249, 19, 20, 40, 42, 43, 44, 45, 46,
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47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61,
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62, 63, 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76,
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77, 78, 79, 80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 90, 91,
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92, 93, 94, 95, 96, 97, 98, 99, 100, 101, 102, 103, 104, 105, 106,
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107, 147, 149, 150, 151, 152, 153, 154, 155, 156, 157, 158, 159, 160, 161,
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162, 163, 164, 165, 166, 167, 168, 169, 170, 171, 172, 173, 174, 175, 176,
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177, 178, 179, 180, 181, 182, 183, 184, 185, 186, 187, 188, 189, 190, 191,
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192, 193, 194, 195, 196, 197, 198, 199, 200, 201, 202, 203, 204, 205, 206,
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207, 208, 209, 210, 211, 212, 108, 109, 110, 111, 112, 113, 114, 115, 116,
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117, 118, 119, 120, 121, 122, 123, 124, 125, 126, 129, 130, 131, 132, 133,
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134, 135, 136, 137, 138, 139, 140, 141, 142, 143, 144, 145, 146, 148, 127,
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128,
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};
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static const uint8_t mpc8_q9up_len_counts[16] = {
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0, 0, 0, 0, 0, 2, 38, 134, 71, 9, 2, 0, 0, 0, 0, 0
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};
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#define MPC8_Q2_SIZE 125
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#define MPC8_Q2_BITS 9
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static const uint8_t mpc8_q2_syms[2][MPC8_Q2_SIZE] = {
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{
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4, 24, 100, 120, 0, 20, 104, 124, 1, 3, 5, 9, 10, 14, 15,
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19, 21, 23, 25, 29, 45, 49, 75, 79, 95, 99, 101, 103, 105, 109,
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114, 115, 119, 121, 123, 2, 22, 50, 54, 70, 74, 102, 110, 122, 6,
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8, 16, 18, 26, 28, 30, 34, 40, 44, 46, 48, 76, 78, 80, 84,
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90, 94, 96, 98, 106, 108, 116, 118, 7, 11, 13, 17, 27, 35, 39,
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47, 51, 53, 55, 59, 65, 69, 71, 73, 77, 85, 89, 97, 107, 111,
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113, 117, 12, 33, 43, 52, 60, 64, 72, 91, 112, 31, 32, 36, 38,
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41, 42, 56, 58, 66, 68, 81, 82, 83, 86, 88, 92, 93, 37, 57,
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61, 63, 67, 87, 62,
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},
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{
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4, 24, 100, 120, 0, 20, 104, 124, 1, 3, 5, 9, 10, 15, 19,
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21, 23, 25, 29, 45, 49, 75, 79, 95, 99, 101, 102, 103, 105, 109,
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114, 115, 119, 121, 123, 2, 14, 22, 50, 54, 70, 74, 110, 122, 6,
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7, 8, 11, 13, 16, 17, 18, 26, 27, 28, 30, 34, 35, 39, 40,
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44, 46, 47, 48, 51, 53, 55, 59, 65, 69, 71, 73, 76, 77, 78,
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80, 84, 85, 89, 90, 94, 96, 97, 98, 106, 107, 108, 111, 113, 116,
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117, 118, 12, 52, 60, 64, 72, 112, 31, 33, 36, 41, 43, 81, 83,
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88, 91, 93, 32, 37, 38, 42, 56, 57, 58, 61, 63, 66, 67, 68,
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82, 86, 87, 92, 62,
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}
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};
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static const uint8_t mpc8_q2_len_counts[2][16] = {
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{ 0, 0, 1, 6, 0, 17, 9, 24, 24, 9, 27, 4, 4, 0, 0, 0 },
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{ 0, 0, 0, 1, 16, 10, 6, 48, 9, 27, 4, 4, 0, 0, 0, 0 },
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};
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#define MPC8_Q3_SIZE 49
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#define MPC8_Q3_BITS 9
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#define MPC8_Q3_OFFSET -48
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static const uint8_t mpc8_q3_len_counts[16] = {
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0, 0, 1, 6, 6, 11, 13, 8, 4, 0, 0, 0, 0, 0, 0, 0
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};
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static const uint8_t mpc8_q3_syms[MPC8_Q3_SIZE] = {
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13, 3, 109, 99, 14, 2, 29, 19, 93, 83, 110, 98, 15, 0, 1,
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18, 45, 35, 61, 51, 77, 67, 111, 96, 97, 30, 31, 17, 46, 34,
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78, 66, 94, 95, 81, 82, 16, 33, 62, 50, 79, 80, 47, 32, 63,
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49, 64, 65, 48,
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};
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#define MPC8_Q4_SIZE 81
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#define MPC8_Q4_BITS 9
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#define MPC8_Q4_OFFSET -64
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static const uint8_t mpc8_q4_len_counts[16] = {
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0, 0, 0, 1, 12, 23, 14, 19, 8, 4, 0, 0, 0, 0, 0, 0
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};
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static const uint8_t mpc8_q4_syms[MPC8_Q4_SIZE] = {
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12, 4, 140, 132, 13, 3, 28, 20, 124, 116, 141, 131, 14, 1, 2,
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29, 19, 44, 36, 60, 52, 92, 84, 108, 100, 125, 115, 142, 143, 129,
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130, 15, 0, 30, 18, 45, 35, 76, 68, 109, 99, 126, 127, 114, 128,
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31, 16, 17, 46, 47, 33, 34, 61, 62, 50, 51, 77, 67, 93, 94,
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82, 83, 110, 111, 97, 98, 112, 113, 32, 63, 48, 49, 78, 79, 65,
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66, 95, 80, 81, 96, 64,
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};
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#define MPC8_Q5_SIZE 15
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#define MPC8_Q5_BITS 7
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#define MPC8_Q5_OFFSET -7
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static const uint8_t mpc8_q5_syms[2][MPC8_Q5_SIZE] = {
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{
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0, 1, 13, 14, 2, 12, 3, 11, 4, 10, 5, 6, 8, 9, 7,
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},
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{
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0, 1, 13, 14, 2, 12, 3, 4, 10, 11, 5, 6, 7, 8, 9,
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}
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};
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static const uint8_t mpc8_q5_len_counts[2][16] = {
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{ 0, 1, 4, 2, 2, 2, 4, 0, 0, 0, 0, 0, 0, 0, 0, 0 },
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{ 0, 0, 5, 4, 2, 4, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 },
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};
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#define MPC8_Q6_SIZE 31
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#define MPC8_Q6_BITS 9
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#define MPC8_Q6_OFFSET -15
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static const uint8_t mpc8_q6_syms[2][MPC8_Q6_SIZE] = {
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{
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0, 1, 2, 3, 27, 28, 29, 30, 4, 5, 25, 26, 6, 24, 7, 8, 9, 20, 21,
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22, 23, 10, 11, 19, 12, 13, 17, 18, 14, 16, 15,
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},
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{
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0, 1, 29, 30, 2, 3, 4, 26, 27, 28, 5, 6, 24, 25, 7, 8, 9, 21, 22,
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23, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20,
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}
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};
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static const uint8_t mpc8_q6_len_counts[2][16] = {
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{ 0, 1, 2, 4, 3, 7, 2, 4, 8, 0, 0, 0, 0, 0, 0, 0 },
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{ 0, 0, 0, 11, 6, 4, 6, 4, 0, 0, 0, 0, 0, 0, 0, 0 },
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};
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#define MPC8_Q7_SIZE 63
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#define MPC8_Q7_BITS 9
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#define MPC8_Q7_OFFSET -31
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static const uint8_t mpc8_q7_syms[2][MPC8_Q7_SIZE] = {
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{
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0, 1, 2, 5, 6, 7, 8, 9, 53, 54, 55, 56, 57, 60, 61, 62, 3, 4, 10,
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11, 12, 13, 49, 50, 51, 52, 58, 59, 14, 15, 16, 17, 18, 43, 45, 46, 47, 48,
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19, 20, 21, 22, 23, 39, 40, 41, 42, 44, 24, 25, 26, 36, 37, 38, 27, 28, 34,
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35, 29, 33, 30, 32, 31,
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},
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{
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0, 1, 61, 62, 2, 3, 4, 5, 6, 7, 8, 54, 55, 56, 57, 58, 59, 60, 9,
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10, 11, 12, 13, 49, 50, 51, 52, 53, 14, 15, 16, 17, 18, 19, 20, 21, 42, 43,
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44, 45, 46, 47, 48, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35,
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36, 37, 38, 39, 40, 41,
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}
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};
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static const uint8_t mpc8_q7_len_counts[2][MPC8_Q7_SIZE] = {
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{ 0, 1, 2, 2, 4, 6, 10, 10, 12, 16, 0, 0, 0, 0, 0, 0 },
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{ 0, 0, 0, 0, 20, 15, 10, 14, 4, 0, 0, 0, 0, 0, 0, 0 },
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};
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#define MPC8_Q8_SIZE 127
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#define MPC8_Q8_BITS 9
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#define MPC8_Q8_OFFSET -63
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static const uint8_t mpc8_q8_syms[2][MPC8_Q8_SIZE] = {
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{
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11, 12, 111, 113, 114, 115, 0, 1, 13, 14, 15, 16, 17, 18, 19,
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21, 104, 105, 107, 108, 109, 110, 112, 2, 3, 4, 5, 6, 8, 10,
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20, 22, 23, 24, 25, 26, 27, 28, 29, 31, 32, 33, 34, 35, 92,
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93, 95, 96, 97, 98, 99, 100, 101, 102, 103, 106, 116, 117, 120, 121,
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122, 123, 124, 125, 126, 7, 9, 30, 36, 37, 38, 39, 40, 41, 42,
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43, 45, 83, 84, 85, 86, 87, 88, 89, 90, 91, 94, 118, 119, 44,
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46, 47, 48, 49, 50, 51, 75, 76, 77, 78, 79, 80, 81, 82, 52,
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53, 54, 55, 71, 72, 73, 74, 56, 57, 58, 59, 67, 68, 69, 70,
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60, 65, 66, 61, 62, 64, 63,
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},
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{
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0, 1, 2, 3, 123, 124, 125, 126, 4, 5, 6, 7, 8, 9, 10,
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11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 103, 104, 105, 106,
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107, 108, 109, 110, 111, 112, 113, 114, 115, 116, 117, 118, 119, 120, 121,
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122, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35,
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36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 75,
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77, 78, 79, 80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 90, 91,
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92, 93, 94, 95, 96, 97, 98, 99, 100, 101, 102, 50, 51, 52, 53,
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54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 66, 67, 68,
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69, 70, 71, 72, 73, 74, 76,
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}
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};
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static const uint8_t mpc8_q8_len_counts[2][16] = {
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{ 0, 1, 2, 1, 3, 8, 8, 15, 24, 42, 17, 6, 0, 0, 0, 0 },
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{ 0, 0, 0, 0, 0, 26, 55, 38, 8, 0, 0, 0, 0, 0, 0, 0 },
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};
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#endif /* AVCODEC_MPC8HUFF_H */
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