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	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
		
	
	
	
	
	
| /*
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|  * MPEG Audio common tables
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|  * copyright (c) 2002 Fabrice Bellard
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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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| 
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| /**
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|  * @file
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|  * mpeg audio layer common tables.
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|  */
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| 
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| #include "mpegaudiodata.h"
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| 
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| /*******************************************************/
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| /* layer 2 tables */
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| 
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| const int ff_mpa_sblimit_table[5] = { 27 , 30 , 8, 12 , 30 };
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| 
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| const int ff_mpa_quant_steps[17] = {
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|     3,     5,    7,    9,    15,
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|     31,    63,  127,  255,   511,
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|     1023,  2047, 4095, 8191, 16383,
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|     32767, 65535
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| };
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| 
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| /* we use a negative value if grouped */
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| const int ff_mpa_quant_bits[17] = {
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|     -5,  -7,  3, -10, 4,
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|      5,  6,  7,  8,  9,
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|     10, 11, 12, 13, 14,
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|     15, 16
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| };
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| 
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| /* encoding tables which give the quantization index. Note how it is
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|    possible to store them efficiently ! */
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| static const unsigned char alloc_table_1[] = {
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|  4,  0,  2,  4,  5,  6,  7,  8,  9, 10, 11, 12, 13, 14, 15, 16,
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|  4,  0,  2,  4,  5,  6,  7,  8,  9, 10, 11, 12, 13, 14, 15, 16,
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|  4,  0,  2,  4,  5,  6,  7,  8,  9, 10, 11, 12, 13, 14, 15, 16,
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|  4,  0,  1,  2,  3,  4,  5,  6,  7,  8,  9, 10, 11, 12, 13, 16,
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|  4,  0,  1,  2,  3,  4,  5,  6,  7,  8,  9, 10, 11, 12, 13, 16,
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|  4,  0,  1,  2,  3,  4,  5,  6,  7,  8,  9, 10, 11, 12, 13, 16,
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|  4,  0,  1,  2,  3,  4,  5,  6,  7,  8,  9, 10, 11, 12, 13, 16,
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|  4,  0,  1,  2,  3,  4,  5,  6,  7,  8,  9, 10, 11, 12, 13, 16,
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|  4,  0,  1,  2,  3,  4,  5,  6,  7,  8,  9, 10, 11, 12, 13, 16,
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|  4,  0,  1,  2,  3,  4,  5,  6,  7,  8,  9, 10, 11, 12, 13, 16,
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|  4,  0,  1,  2,  3,  4,  5,  6,  7,  8,  9, 10, 11, 12, 13, 16,
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|  3,  0,  1,  2,  3,  4,  5, 16,
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|  3,  0,  1,  2,  3,  4,  5, 16,
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|  3,  0,  1,  2,  3,  4,  5, 16,
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|  3,  0,  1,  2,  3,  4,  5, 16,
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|  3,  0,  1,  2,  3,  4,  5, 16,
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|  3,  0,  1,  2,  3,  4,  5, 16,
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|  3,  0,  1,  2,  3,  4,  5, 16,
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|  3,  0,  1,  2,  3,  4,  5, 16,
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|  3,  0,  1,  2,  3,  4,  5, 16,
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|  3,  0,  1,  2,  3,  4,  5, 16,
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|  3,  0,  1,  2,  3,  4,  5, 16,
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|  3,  0,  1,  2,  3,  4,  5, 16,
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|  2,  0,  1, 16,
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|  2,  0,  1, 16,
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|  2,  0,  1, 16,
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|  2,  0,  1, 16,
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|  2,  0,  1, 16,
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|  2,  0,  1, 16,
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|  2,  0,  1, 16,
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| };
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| 
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| static const unsigned char alloc_table_3[] = {
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|  4,  0,  1,  3,  4,  5,  6,  7,  8,  9, 10, 11, 12, 13, 14, 15,
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|  4,  0,  1,  3,  4,  5,  6,  7,  8,  9, 10, 11, 12, 13, 14, 15,
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|  3,  0,  1,  3,  4,  5,  6,  7,
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|  3,  0,  1,  3,  4,  5,  6,  7,
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|  3,  0,  1,  3,  4,  5,  6,  7,
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|  3,  0,  1,  3,  4,  5,  6,  7,
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|  3,  0,  1,  3,  4,  5,  6,  7,
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|  3,  0,  1,  3,  4,  5,  6,  7,
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|  3,  0,  1,  3,  4,  5,  6,  7,
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|  3,  0,  1,  3,  4,  5,  6,  7,
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|  3,  0,  1,  3,  4,  5,  6,  7,
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|  3,  0,  1,  3,  4,  5,  6,  7,
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| };
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| 
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| static const unsigned char alloc_table_4[] = {
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|  4,  0,  1,  2,  3,  4,  5,  6,  7,  8,  9, 10, 11, 12, 13, 14,
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|  4,  0,  1,  2,  3,  4,  5,  6,  7,  8,  9, 10, 11, 12, 13, 14,
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|  4,  0,  1,  2,  3,  4,  5,  6,  7,  8,  9, 10, 11, 12, 13, 14,
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|  4,  0,  1,  2,  3,  4,  5,  6,  7,  8,  9, 10, 11, 12, 13, 14,
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|  3,  0,  1,  3,  4,  5,  6,  7,
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|  3,  0,  1,  3,  4,  5,  6,  7,
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|  3,  0,  1,  3,  4,  5,  6,  7,
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|  3,  0,  1,  3,  4,  5,  6,  7,
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|  3,  0,  1,  3,  4,  5,  6,  7,
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|  3,  0,  1,  3,  4,  5,  6,  7,
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|  3,  0,  1,  3,  4,  5,  6,  7,
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|  2,  0,  1,  3,
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|  2,  0,  1,  3,
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|  2,  0,  1,  3,
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|  2,  0,  1,  3,
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|  2,  0,  1,  3,
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|  2,  0,  1,  3,
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|  2,  0,  1,  3,
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|  2,  0,  1,  3,
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|  2,  0,  1,  3,
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|  2,  0,  1,  3,
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|  2,  0,  1,  3,
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|  2,  0,  1,  3,
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|  2,  0,  1,  3,
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|  2,  0,  1,  3,
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|  2,  0,  1,  3,
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|  2,  0,  1,  3,
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|  2,  0,  1,  3,
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|  2,  0,  1,  3,
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|  2,  0,  1,  3,
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| };
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| 
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| const unsigned char * const ff_mpa_alloc_tables[5] =
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| { alloc_table_1, alloc_table_1, alloc_table_3, alloc_table_3, alloc_table_4, };
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