1cabdff1aSopenharmony_ci/*
2cabdff1aSopenharmony_ci * MPEG Audio common tables
3cabdff1aSopenharmony_ci * copyright (c) 2002 Fabrice Bellard
4cabdff1aSopenharmony_ci *
5cabdff1aSopenharmony_ci * This file is part of FFmpeg.
6cabdff1aSopenharmony_ci *
7cabdff1aSopenharmony_ci * FFmpeg is free software; you can redistribute it and/or
8cabdff1aSopenharmony_ci * modify it under the terms of the GNU Lesser General Public
9cabdff1aSopenharmony_ci * License as published by the Free Software Foundation; either
10cabdff1aSopenharmony_ci * version 2.1 of the License, or (at your option) any later version.
11cabdff1aSopenharmony_ci *
12cabdff1aSopenharmony_ci * FFmpeg is distributed in the hope that it will be useful,
13cabdff1aSopenharmony_ci * but WITHOUT ANY WARRANTY; without even the implied warranty of
14cabdff1aSopenharmony_ci * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
15cabdff1aSopenharmony_ci * Lesser General Public License for more details.
16cabdff1aSopenharmony_ci *
17cabdff1aSopenharmony_ci * You should have received a copy of the GNU Lesser General Public
18cabdff1aSopenharmony_ci * License along with FFmpeg; if not, write to the Free Software
19cabdff1aSopenharmony_ci * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
20cabdff1aSopenharmony_ci */
21cabdff1aSopenharmony_ci
22cabdff1aSopenharmony_ci/**
23cabdff1aSopenharmony_ci * @file
24cabdff1aSopenharmony_ci * mpeg audio layer common tables.
25cabdff1aSopenharmony_ci */
26cabdff1aSopenharmony_ci
27cabdff1aSopenharmony_ci#ifndef AVCODEC_MPEGAUDIODATA_H
28cabdff1aSopenharmony_ci#define AVCODEC_MPEGAUDIODATA_H
29cabdff1aSopenharmony_ci
30cabdff1aSopenharmony_ci#include <stdint.h>
31cabdff1aSopenharmony_ci
32cabdff1aSopenharmony_ci#include "config.h"
33cabdff1aSopenharmony_ci
34cabdff1aSopenharmony_ci#include "vlc.h"
35cabdff1aSopenharmony_ci
36cabdff1aSopenharmony_ci#define MODE_EXT_MS_STEREO 2
37cabdff1aSopenharmony_ci#define MODE_EXT_I_STEREO  1
38cabdff1aSopenharmony_ci
39cabdff1aSopenharmony_ciextern const uint16_t ff_mpa_bitrate_tab[2][3][15];
40cabdff1aSopenharmony_ciextern const uint16_t ff_mpa_freq_tab[3];
41cabdff1aSopenharmony_ciextern const int ff_mpa_sblimit_table[5];
42cabdff1aSopenharmony_ciextern const int ff_mpa_quant_steps[17];
43cabdff1aSopenharmony_ciextern const int ff_mpa_quant_bits[17];
44cabdff1aSopenharmony_ciextern const unsigned char * const ff_mpa_alloc_tables[5];
45cabdff1aSopenharmony_ci
46cabdff1aSopenharmony_ci#define TABLE_4_3_SIZE ((8191 + 16)*4)
47cabdff1aSopenharmony_ci#if CONFIG_HARDCODED_TABLES
48cabdff1aSopenharmony_ciextern const int8_t   ff_table_4_3_exp  [TABLE_4_3_SIZE];
49cabdff1aSopenharmony_ciextern const uint32_t ff_table_4_3_value[TABLE_4_3_SIZE];
50cabdff1aSopenharmony_ci#else
51cabdff1aSopenharmony_ciextern int8_t   ff_table_4_3_exp  [TABLE_4_3_SIZE];
52cabdff1aSopenharmony_ciextern uint32_t ff_table_4_3_value[TABLE_4_3_SIZE];
53cabdff1aSopenharmony_ci#endif
54cabdff1aSopenharmony_ci
55cabdff1aSopenharmony_ci/* VLCs for decoding layer 3 huffman tables */
56cabdff1aSopenharmony_ciextern VLC ff_huff_vlc[16];
57cabdff1aSopenharmony_ciextern VLC ff_huff_quad_vlc[2];
58cabdff1aSopenharmony_ci
59cabdff1aSopenharmony_ci/* layer3 scale factor size */
60cabdff1aSopenharmony_ciextern const uint8_t ff_slen_table[2][16];
61cabdff1aSopenharmony_ci/* number of lsf scale factors for a given size */
62cabdff1aSopenharmony_ciextern const uint8_t ff_lsf_nsf_table[6][3][4];
63cabdff1aSopenharmony_ciextern const uint8_t ff_mpa_huff_data[32][2];
64cabdff1aSopenharmony_ci
65cabdff1aSopenharmony_ci/* band size tables */
66cabdff1aSopenharmony_ciextern const uint8_t ff_band_size_long[9][22];
67cabdff1aSopenharmony_ciextern const uint8_t ff_band_size_short[9][13];
68cabdff1aSopenharmony_ci/* computed from ff_band_size_long */
69cabdff1aSopenharmony_ciextern uint16_t ff_band_index_long[9][23];
70cabdff1aSopenharmony_ci
71cabdff1aSopenharmony_ciextern int16_t *const ff_division_tabs[4];
72cabdff1aSopenharmony_ci
73cabdff1aSopenharmony_ci/* lower 2 bits: modulo 3, higher bits: shift */
74cabdff1aSopenharmony_ciextern uint16_t ff_scale_factor_modshift[64];
75cabdff1aSopenharmony_ci
76cabdff1aSopenharmony_ciextern const uint8_t ff_mpa_pretab[2][22];
77cabdff1aSopenharmony_ci
78cabdff1aSopenharmony_ci/* Initialize tables shared between the fixed and
79cabdff1aSopenharmony_ci * floating point MPEG audio decoders. */
80cabdff1aSopenharmony_civoid ff_mpegaudiodec_common_init_static(void);
81cabdff1aSopenharmony_ci
82cabdff1aSopenharmony_ci#endif /* AVCODEC_MPEGAUDIODATA_H */
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