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83ff99adc4
Up until now, VLCs that were part of an array of VLCs were often not initialized in a loop, but separately. The probable reason for this was that these VLCs differed slightly in the parameters to be used for them (i.e. the number of codes or the number of bits to be used differs), so that one would have to provide these parameters e.g. via arrays. Yet these problems have actually largely been solved by now: The length information is contained in a run-length encoded form that is the same for all VLCs and both the number of codes as well as the number of bits to use for each VLC can be easily derived from them. There is just one problem to be solved: When the underlying tables have a different number of elements, putting them into an array of arrays would be wasteful; using an array of pointers to the arrays would also be wasteful. Therefore this commit combines the tables into bigger tables. (Given that all the length tables have the same layout this applies only to the symbols tables.) Finally, the array containing the offset of the VLC's buffer in the big buffer has also been removed. Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@gmail.com>
231 lines
11 KiB
C
231 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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static const uint8_t mpc8_scfi_syms[] = {
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/* SCFI[0] VLC symbols - 4 entries */
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0, 1, 3, 2,
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/* SCFI[1] VLC symbols - 16 entries */
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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_BITS 9
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#define MPC8_DSCF1_BITS 9
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static const uint8_t mpc8_dscf_syms[] = {
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/* DSCF[0] VLC symbols - 64 entries */
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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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/* DSCF[1] VLC symbols - 65 entries */
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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_BITS 9
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static const uint8_t mpc8_res_syms[] = {
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/* RES[0] VLC symbols - 17 entries */
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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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/* RES[1] VLC symbols - 17 entries */
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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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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_BITS 9
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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_BITS 9
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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_BITS 9
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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_BITS 9
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#define MPC8_Q4_BITS 9
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static const uint8_t mpc8_q34_len_counts[2][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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{ 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_q5_8_len_counts[2][4][16] = {
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{ /* Q5[0], Q6[0], Q7[0], Q8[0] */
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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, 1, 2, 4, 3, 7, 2, 4, 8, 0, 0, 0, 0, 0, 0, 0 },
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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, 1, 2, 1, 3, 8, 8, 15, 24, 42, 17, 6, 0, 0, 0, 0 },
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},
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{ /* Q5[1], Q6[1], Q7[1], Q8[1] */
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{ 0, 0, 5, 4, 2, 4, 0, 0, 0, 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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{ 0, 0, 0, 0, 20, 15, 10, 14, 4, 0, 0, 0, 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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};
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static const uint8_t mpc8_q_syms[] = {
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/* Q1 VLC symbols - 19 entries */
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17, 18, 16, 15, 14, 13, 12, 0, 11, 1, 2, 8, 9, 10, 3,
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4, 5, 6, 7,
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/* Q9UP VLC symbols - 256 entries */
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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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/* Q2[0] VLC symbols - 125 entries */
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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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/* Q3 VLC symbols - 49 entries */
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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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/* Q5[0] VLC symbols - 15 entries */
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0, 1, 13, 14, 2, 12, 3, 11, 4, 10, 5, 6, 8, 9, 7,
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/* Q6[0] VLC symbols - 31 entries */
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0, 1, 2, 3, 27, 28, 29, 30, 4, 5, 25, 26, 6, 24, 7,
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8, 9, 20, 21, 22, 23, 10, 11, 19, 12, 13, 17, 18, 14, 16,
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15,
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/* Q7[0] VLC symbols - 63 entries */
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0, 1, 2, 5, 6, 7, 8, 9, 53, 54, 55, 56, 57, 60, 61,
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62, 3, 4, 10, 11, 12, 13, 49, 50, 51, 52, 58, 59, 14, 15,
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16, 17, 18, 43, 45, 46, 47, 48, 19, 20, 21, 22, 23, 39, 40,
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41, 42, 44, 24, 25, 26, 36, 37, 38, 27, 28, 34, 35, 29, 33,
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30, 32, 31,
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/* Q8[0] VLC symbols - 127 entries */
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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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/* Q2[1] VLC symbols - 125 entries */
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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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/* Q4 VLC symbols - 81 entries */
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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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/* Q5[1] VLC symbols - 15 entries */
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0, 1, 13, 14, 2, 12, 3, 4, 10, 11, 5, 6, 7, 8, 9,
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/* Q6[1] VLC symbols - 31 entries */
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0, 1, 29, 30, 2, 3, 4, 26, 27, 28, 5, 6, 24, 25, 7,
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8, 9, 21, 22, 23, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19,
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20,
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/* Q7[1] VLC symbols - 63 entries */
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0, 1, 61, 62, 2, 3, 4, 5, 6, 7, 8, 54, 55, 56, 57,
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58, 59, 60, 9, 10, 11, 12, 13, 49, 50, 51, 52, 53, 14, 15,
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16, 17, 18, 19, 20, 21, 42, 43, 44, 45, 46, 47, 48, 22, 23,
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24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38,
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39, 40, 41,
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/* Q8[1] VLC symbols - 127 entries */
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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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#endif /* AVCODEC_MPC8HUFF_H */
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