/*
* 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 .
*/
#ifndef AVCODEC_MPEGAUDIODATA_H
#define AVCODEC_MPEGAUDIODATA_H
#include <stdint.h>
#include "config.h"
#include "libavutil/attributes_internal.h"
#include "vlc.h"
#define MODE_EXT_MS_STEREO 2
#define MODE_EXT_I_STEREO 1
FF_VISIBILITY_PUSH_HIDDEN
extern const uint16_t ff_mpa_bitrate_tab[2 ][3 ][15 ];
extern const uint16_t ff_mpa_freq_tab[3 ];
extern const int ff_mpa_sblimit_table[5 ];
extern const int ff_mpa_quant_steps[17 ];
extern const int ff_mpa_quant_bits[17 ];
extern const unsigned char * const ff_mpa_alloc_tables[5 ];
#define TABLE_4_3_SIZE ((8191 + 16 )*4 )
#if CONFIG_HARDCODED_TABLES
extern const int8_t ff_table_4_3_exp [TABLE_4_3_SIZE];
extern const uint32_t ff_table_4_3_value[TABLE_4_3_SIZE];
#else
extern int8_t ff_table_4_3_exp [TABLE_4_3_SIZE];
extern uint32_t ff_table_4_3_value[TABLE_4_3_SIZE];
#endif
/* VLCs for decoding layer 3 huffman tables */
extern const VLCElem *ff_huff_vlc[16 ];
extern VLC ff_huff_quad_vlc[2 ];
/* layer3 scale factor size */
extern const uint8_t ff_slen_table[2 ][16 ];
/* number of lsf scale factors for a given size */
extern const uint8_t ff_lsf_nsf_table[6 ][3 ][4 ];
extern const uint8_t ff_mpa_huff_data[32 ][2 ];
/* band size tables */
extern const uint8_t ff_band_size_long[9 ][22 ];
extern const uint8_t ff_band_size_short[9 ][13 ];
/* computed from ff_band_size_long */
extern uint16_t ff_band_index_long[9 ][23 ];
extern int16_t *const ff_division_tabs[4 ];
/* lower 2 bits: modulo 3, higher bits: shift */
extern uint16_t ff_scale_factor_modshift[64 ];
extern const uint8_t ff_mpa_pretab[2 ][22 ];
/* Initialize tables shared between the fixed and
* floating point MPEG audio decoders. */
void ff_mpegaudiodec_common_init_static(void );
FF_VISIBILITY_POP_HIDDEN
#endif /* AVCODEC_MPEGAUDIODATA_H */
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