mirror of
https://github.com/FFmpeg/FFmpeg.git
synced 2024-11-21 10:55:51 +02:00
33e6d57f01
These arrays have a size of 180 resp. six bytes. This does not make it worthwhile to export them due to the overhead this occurs; for x64 Elf/Linux/GNU: 2x2B version, 2x24B .dynsym, 24B .rela.dyn, 8B .got, 4B hash + twice the size of the name (here 20+23B). Therefore these symbols are unavprived and duplicated for shared builds. Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@outlook.com>
134 lines
4.1 KiB
C
134 lines
4.1 KiB
C
/*
|
|
* MPEG Audio common tables
|
|
* copyright (c) 2002 Fabrice Bellard
|
|
*
|
|
* This file is part of FFmpeg.
|
|
*
|
|
* FFmpeg is free software; you can redistribute it and/or
|
|
* modify it under the terms of the GNU Lesser General Public
|
|
* License as published by the Free Software Foundation; either
|
|
* version 2.1 of the License, or (at your option) any later version.
|
|
*
|
|
* FFmpeg is distributed in the hope that it will be useful,
|
|
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
|
|
* Lesser General Public License for more details.
|
|
*
|
|
* You should have received a copy of the GNU Lesser General Public
|
|
* License along with FFmpeg; if not, write to the Free Software
|
|
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
|
|
*/
|
|
|
|
/**
|
|
* @file
|
|
* mpeg audio layer common tables.
|
|
*/
|
|
|
|
#include "mpegaudiodata.h"
|
|
|
|
/*******************************************************/
|
|
/* layer 2 tables */
|
|
|
|
const int ff_mpa_sblimit_table[5] = { 27 , 30 , 8, 12 , 30 };
|
|
|
|
const int ff_mpa_quant_steps[17] = {
|
|
3, 5, 7, 9, 15,
|
|
31, 63, 127, 255, 511,
|
|
1023, 2047, 4095, 8191, 16383,
|
|
32767, 65535
|
|
};
|
|
|
|
/* we use a negative value if grouped */
|
|
const int ff_mpa_quant_bits[17] = {
|
|
-5, -7, 3, -10, 4,
|
|
5, 6, 7, 8, 9,
|
|
10, 11, 12, 13, 14,
|
|
15, 16
|
|
};
|
|
|
|
/* encoding tables which give the quantization index. Note how it is
|
|
possible to store them efficiently ! */
|
|
static const unsigned char alloc_table_1[] = {
|
|
4, 0, 2, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16,
|
|
4, 0, 2, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16,
|
|
4, 0, 2, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16,
|
|
4, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 16,
|
|
4, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 16,
|
|
4, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 16,
|
|
4, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 16,
|
|
4, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 16,
|
|
4, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 16,
|
|
4, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 16,
|
|
4, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 16,
|
|
3, 0, 1, 2, 3, 4, 5, 16,
|
|
3, 0, 1, 2, 3, 4, 5, 16,
|
|
3, 0, 1, 2, 3, 4, 5, 16,
|
|
3, 0, 1, 2, 3, 4, 5, 16,
|
|
3, 0, 1, 2, 3, 4, 5, 16,
|
|
3, 0, 1, 2, 3, 4, 5, 16,
|
|
3, 0, 1, 2, 3, 4, 5, 16,
|
|
3, 0, 1, 2, 3, 4, 5, 16,
|
|
3, 0, 1, 2, 3, 4, 5, 16,
|
|
3, 0, 1, 2, 3, 4, 5, 16,
|
|
3, 0, 1, 2, 3, 4, 5, 16,
|
|
3, 0, 1, 2, 3, 4, 5, 16,
|
|
2, 0, 1, 16,
|
|
2, 0, 1, 16,
|
|
2, 0, 1, 16,
|
|
2, 0, 1, 16,
|
|
2, 0, 1, 16,
|
|
2, 0, 1, 16,
|
|
2, 0, 1, 16,
|
|
};
|
|
|
|
static const unsigned char alloc_table_3[] = {
|
|
4, 0, 1, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15,
|
|
4, 0, 1, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15,
|
|
3, 0, 1, 3, 4, 5, 6, 7,
|
|
3, 0, 1, 3, 4, 5, 6, 7,
|
|
3, 0, 1, 3, 4, 5, 6, 7,
|
|
3, 0, 1, 3, 4, 5, 6, 7,
|
|
3, 0, 1, 3, 4, 5, 6, 7,
|
|
3, 0, 1, 3, 4, 5, 6, 7,
|
|
3, 0, 1, 3, 4, 5, 6, 7,
|
|
3, 0, 1, 3, 4, 5, 6, 7,
|
|
3, 0, 1, 3, 4, 5, 6, 7,
|
|
3, 0, 1, 3, 4, 5, 6, 7,
|
|
};
|
|
|
|
static const unsigned char alloc_table_4[] = {
|
|
4, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14,
|
|
4, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14,
|
|
4, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14,
|
|
4, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14,
|
|
3, 0, 1, 3, 4, 5, 6, 7,
|
|
3, 0, 1, 3, 4, 5, 6, 7,
|
|
3, 0, 1, 3, 4, 5, 6, 7,
|
|
3, 0, 1, 3, 4, 5, 6, 7,
|
|
3, 0, 1, 3, 4, 5, 6, 7,
|
|
3, 0, 1, 3, 4, 5, 6, 7,
|
|
3, 0, 1, 3, 4, 5, 6, 7,
|
|
2, 0, 1, 3,
|
|
2, 0, 1, 3,
|
|
2, 0, 1, 3,
|
|
2, 0, 1, 3,
|
|
2, 0, 1, 3,
|
|
2, 0, 1, 3,
|
|
2, 0, 1, 3,
|
|
2, 0, 1, 3,
|
|
2, 0, 1, 3,
|
|
2, 0, 1, 3,
|
|
2, 0, 1, 3,
|
|
2, 0, 1, 3,
|
|
2, 0, 1, 3,
|
|
2, 0, 1, 3,
|
|
2, 0, 1, 3,
|
|
2, 0, 1, 3,
|
|
2, 0, 1, 3,
|
|
2, 0, 1, 3,
|
|
2, 0, 1, 3,
|
|
};
|
|
|
|
const unsigned char * const ff_mpa_alloc_tables[5] =
|
|
{ alloc_table_1, alloc_table_1, alloc_table_3, alloc_table_3, alloc_table_4, };
|