yading@10: /*
yading@10:  * MPEG Audio common tables
yading@10:  * copyright (c) 2002 Fabrice Bellard
yading@10:  *
yading@10:  * This file is part of FFmpeg.
yading@10:  *
yading@10:  * FFmpeg is free software; you can redistribute it and/or
yading@10:  * modify it under the terms of the GNU Lesser General Public
yading@10:  * License as published by the Free Software Foundation; either
yading@10:  * version 2.1 of the License, or (at your option) any later version.
yading@10:  *
yading@10:  * FFmpeg is distributed in the hope that it will be useful,
yading@10:  * but WITHOUT ANY WARRANTY; without even the implied warranty of
yading@10:  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
yading@10:  * Lesser General Public License for more details.
yading@10:  *
yading@10:  * You should have received a copy of the GNU Lesser General Public
yading@10:  * License along with FFmpeg; if not, write to the Free Software
yading@10:  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
yading@10:  */
yading@10: 
yading@10: /**
yading@10:  * @file
yading@10:  * mpeg audio layer common tables.
yading@10:  */
yading@10: 
yading@10: #include "mpegaudiodata.h"
yading@10: 
yading@10: 
yading@10: const uint16_t avpriv_mpa_bitrate_tab[2][3][15] = {
yading@10:     { {0, 32, 64, 96, 128, 160, 192, 224, 256, 288, 320, 352, 384, 416, 448 },
yading@10:       {0, 32, 48, 56,  64,  80,  96, 112, 128, 160, 192, 224, 256, 320, 384 },
yading@10:       {0, 32, 40, 48,  56,  64,  80,  96, 112, 128, 160, 192, 224, 256, 320 } },
yading@10:     { {0, 32, 48, 56,  64,  80,  96, 112, 128, 144, 160, 176, 192, 224, 256},
yading@10:       {0,  8, 16, 24,  32,  40,  48,  56,  64,  80,  96, 112, 128, 144, 160},
yading@10:       {0,  8, 16, 24,  32,  40,  48,  56,  64,  80,  96, 112, 128, 144, 160}
yading@10:     }
yading@10: };
yading@10: 
yading@10: const uint16_t avpriv_mpa_freq_tab[3] = { 44100, 48000, 32000 };
yading@10: 
yading@10: /*******************************************************/
yading@10: /* layer 2 tables */
yading@10: 
yading@10: const int ff_mpa_sblimit_table[5] = { 27 , 30 , 8, 12 , 30 };
yading@10: 
yading@10: const int ff_mpa_quant_steps[17] = {
yading@10:     3,     5,    7,    9,    15,
yading@10:     31,    63,  127,  255,   511,
yading@10:     1023,  2047, 4095, 8191, 16383,
yading@10:     32767, 65535
yading@10: };
yading@10: 
yading@10: /* we use a negative value if grouped */
yading@10: const int ff_mpa_quant_bits[17] = {
yading@10:     -5,  -7,  3, -10, 4,
yading@10:      5,  6,  7,  8,  9,
yading@10:     10, 11, 12, 13, 14,
yading@10:     15, 16
yading@10: };
yading@10: 
yading@10: /* encoding tables which give the quantization index. Note how it is
yading@10:    possible to store them efficiently ! */
yading@10: static const unsigned char alloc_table_1[] = {
yading@10:  4,  0,  2,  4,  5,  6,  7,  8,  9, 10, 11, 12, 13, 14, 15, 16,
yading@10:  4,  0,  2,  4,  5,  6,  7,  8,  9, 10, 11, 12, 13, 14, 15, 16,
yading@10:  4,  0,  2,  4,  5,  6,  7,  8,  9, 10, 11, 12, 13, 14, 15, 16,
yading@10:  4,  0,  1,  2,  3,  4,  5,  6,  7,  8,  9, 10, 11, 12, 13, 16,
yading@10:  4,  0,  1,  2,  3,  4,  5,  6,  7,  8,  9, 10, 11, 12, 13, 16,
yading@10:  4,  0,  1,  2,  3,  4,  5,  6,  7,  8,  9, 10, 11, 12, 13, 16,
yading@10:  4,  0,  1,  2,  3,  4,  5,  6,  7,  8,  9, 10, 11, 12, 13, 16,
yading@10:  4,  0,  1,  2,  3,  4,  5,  6,  7,  8,  9, 10, 11, 12, 13, 16,
yading@10:  4,  0,  1,  2,  3,  4,  5,  6,  7,  8,  9, 10, 11, 12, 13, 16,
yading@10:  4,  0,  1,  2,  3,  4,  5,  6,  7,  8,  9, 10, 11, 12, 13, 16,
yading@10:  4,  0,  1,  2,  3,  4,  5,  6,  7,  8,  9, 10, 11, 12, 13, 16,
yading@10:  3,  0,  1,  2,  3,  4,  5, 16,
yading@10:  3,  0,  1,  2,  3,  4,  5, 16,
yading@10:  3,  0,  1,  2,  3,  4,  5, 16,
yading@10:  3,  0,  1,  2,  3,  4,  5, 16,
yading@10:  3,  0,  1,  2,  3,  4,  5, 16,
yading@10:  3,  0,  1,  2,  3,  4,  5, 16,
yading@10:  3,  0,  1,  2,  3,  4,  5, 16,
yading@10:  3,  0,  1,  2,  3,  4,  5, 16,
yading@10:  3,  0,  1,  2,  3,  4,  5, 16,
yading@10:  3,  0,  1,  2,  3,  4,  5, 16,
yading@10:  3,  0,  1,  2,  3,  4,  5, 16,
yading@10:  3,  0,  1,  2,  3,  4,  5, 16,
yading@10:  2,  0,  1, 16,
yading@10:  2,  0,  1, 16,
yading@10:  2,  0,  1, 16,
yading@10:  2,  0,  1, 16,
yading@10:  2,  0,  1, 16,
yading@10:  2,  0,  1, 16,
yading@10:  2,  0,  1, 16,
yading@10: };
yading@10: 
yading@10: static const unsigned char alloc_table_3[] = {
yading@10:  4,  0,  1,  3,  4,  5,  6,  7,  8,  9, 10, 11, 12, 13, 14, 15,
yading@10:  4,  0,  1,  3,  4,  5,  6,  7,  8,  9, 10, 11, 12, 13, 14, 15,
yading@10:  3,  0,  1,  3,  4,  5,  6,  7,
yading@10:  3,  0,  1,  3,  4,  5,  6,  7,
yading@10:  3,  0,  1,  3,  4,  5,  6,  7,
yading@10:  3,  0,  1,  3,  4,  5,  6,  7,
yading@10:  3,  0,  1,  3,  4,  5,  6,  7,
yading@10:  3,  0,  1,  3,  4,  5,  6,  7,
yading@10:  3,  0,  1,  3,  4,  5,  6,  7,
yading@10:  3,  0,  1,  3,  4,  5,  6,  7,
yading@10:  3,  0,  1,  3,  4,  5,  6,  7,
yading@10:  3,  0,  1,  3,  4,  5,  6,  7,
yading@10: };
yading@10: 
yading@10: static const unsigned char alloc_table_4[] = {
yading@10:  4,  0,  1,  2,  3,  4,  5,  6,  7,  8,  9, 10, 11, 12, 13, 14,
yading@10:  4,  0,  1,  2,  3,  4,  5,  6,  7,  8,  9, 10, 11, 12, 13, 14,
yading@10:  4,  0,  1,  2,  3,  4,  5,  6,  7,  8,  9, 10, 11, 12, 13, 14,
yading@10:  4,  0,  1,  2,  3,  4,  5,  6,  7,  8,  9, 10, 11, 12, 13, 14,
yading@10:  3,  0,  1,  3,  4,  5,  6,  7,
yading@10:  3,  0,  1,  3,  4,  5,  6,  7,
yading@10:  3,  0,  1,  3,  4,  5,  6,  7,
yading@10:  3,  0,  1,  3,  4,  5,  6,  7,
yading@10:  3,  0,  1,  3,  4,  5,  6,  7,
yading@10:  3,  0,  1,  3,  4,  5,  6,  7,
yading@10:  3,  0,  1,  3,  4,  5,  6,  7,
yading@10:  2,  0,  1,  3,
yading@10:  2,  0,  1,  3,
yading@10:  2,  0,  1,  3,
yading@10:  2,  0,  1,  3,
yading@10:  2,  0,  1,  3,
yading@10:  2,  0,  1,  3,
yading@10:  2,  0,  1,  3,
yading@10:  2,  0,  1,  3,
yading@10:  2,  0,  1,  3,
yading@10:  2,  0,  1,  3,
yading@10:  2,  0,  1,  3,
yading@10:  2,  0,  1,  3,
yading@10:  2,  0,  1,  3,
yading@10:  2,  0,  1,  3,
yading@10:  2,  0,  1,  3,
yading@10:  2,  0,  1,  3,
yading@10:  2,  0,  1,  3,
yading@10:  2,  0,  1,  3,
yading@10:  2,  0,  1,  3,
yading@10: };
yading@10: 
yading@10: const unsigned char * const ff_mpa_alloc_tables[5] =
yading@10: { alloc_table_1, alloc_table_1, alloc_table_3, alloc_table_3, alloc_table_4, };