dcadata.c File Reference

#include <stdint.h>
#include "libavutil/mem.h"
#include "dca.h"
#include "dcadata.h"

Go to the source code of this file.

Macros
#define	SCALE(c)   ((c) / (256.0f * 32768.0f))

Variables
const uint32_t	ff_dca_bit_rates [32]
const uint8_t	ff_dca_channels [16]
const uint8_t	ff_dca_dmix_primary_nch [8]
const uint8_t	ff_dca_quant_index_sel_nbits [DCA_CODE_BOOKS]
const uint8_t	ff_dca_quant_index_group_size [DCA_CODE_BOOKS]
const int16_t	ff_dca_adpcm_vb [DCA_ADPCM_VQCODEBOOK_SZ][DCA_ADPCM_COEFFS]
const uint32_t	ff_dca_scale_factor_quant6 [64]
const uint32_t	ff_dca_scale_factor_quant7 [128]
const uint32_t	ff_dca_joint_scale_factors [129]
const uint32_t	ff_dca_scale_factor_adj [4]
const uint32_t	ff_dca_quant_levels [32]
const uint32_t	ff_dca_lossy_quant [32]
const uint32_t	ff_dca_lossless_quant [32]
const int8_t	ff_dca_high_freq_vq [1024][32]
const float	ff_dca_fir_32bands_perfect [512]
const float	ff_dca_fir_32bands_nonperfect [512]
const float	ff_dca_lfe_fir_64 [256]
const float	ff_dca_lfe_fir_128 [256]
const float	ff_dca_fir_64bands [1024]
const int32_t	ff_dca_fir_32bands_perfect_fixed [512]
const int32_t	ff_dca_fir_32bands_nonperfect_fixed [512]
const int32_t	ff_dca_lfe_fir_64_fixed [256]
const int32_t	ff_dca_fir_64bands_fixed [1024]
const uint16_t	ff_dca_dmixtable [FF_DCA_DMIXTABLE_SIZE]
const uint32_t	ff_dca_inv_dmixtable [FF_DCA_INV_DMIXTABLE_SIZE]
const uint16_t	ff_dca_xll_refl_coeff [128]
const int32_t	ff_dca_xll_band_coeff [20]
const uint16_t	ff_dca_avg_g3_freqs [3] = { 16000, 18000, 24000 }
const uint16_t	ff_dca_fst_amp [44]
const uint8_t	ff_dca_freq_to_sb [32]
const int8_t	ff_dca_ph0_shift [8]
const uint8_t	ff_dca_grid_1_to_scf [11]
const uint8_t	ff_dca_grid_2_to_scf [3]
const uint8_t	ff_dca_scf_to_grid_1 [32]
const uint8_t	ff_dca_scf_to_grid_2 [32]
const uint8_t	ff_dca_grid_1_weights [12][32]
const uint8_t	ff_dca_sb_reorder [8][8]
const int8_t	ff_dca_lfe_delta_index_16 [8]
const int8_t	ff_dca_lfe_delta_index_24 [32]
const uint16_t	ff_dca_rsd_pack_5_in_8 [256]
const uint8_t	ff_dca_rsd_pack_3_in_7 [128][3]
const float	ff_dca_rsd_level_2a [2]
const float	ff_dca_rsd_level_2b [2]
const float	ff_dca_rsd_level_3 [3]
const float	ff_dca_rsd_level_5 [5]
const float	ff_dca_rsd_level_8 [8]
const float	ff_dca_rsd_level_16 [16]
const float	ff_dca_synth_env [32]
const float	ff_dca_corr_cf [32][11]
const float	ff_dca_quant_amp [57]
const float	ff_dca_st_coeff [34]
const float	ff_dca_long_window [128]
const float	ff_dca_lfe_step_size_16 [101]
const float	ff_dca_lfe_step_size_24 [144]
const float	ff_dca_bank_coeff [10]
const float	ff_dca_lfe_iir [5][4]

Macro Definition Documentation

SCALE

#define SCALE

(

c

)

((c) / (256.0f * 32768.0f))

Definition at line 7338 of file dcadata.c.

Variable Documentation

ff_dca_bit_rates

const uint32_t ff_dca_bit_rates[32]

Initial value:

= {
      32000,   56000,   64000,   96000,  112000, 128000,
     192000,  224000,  256000,  320000,  384000,
     448000,  512000,  576000,  640000,  768000,
     896000, 1024000, 1152000, 1280000, 1344000,
    1408000, 1411200, 1472000, 1536000, 1920000,
    2048000, 3072000, 3840000, 1 , 2 , 3 
}

Definition at line 32 of file dcadata.c.

Referenced by encode_init(), and parse_frame_header().

ff_dca_channels

const uint8_t ff_dca_channels[16]

Initial value:

= {
    1, 2, 2, 2, 2, 3, 3, 4, 4, 5, 6, 6, 6, 7, 8, 8
}

Definition at line 41 of file dcadata.c.

Referenced by ff_dca_core_parse_exss(), filter_frame_fixed(), filter_frame_float(), map_prm_ch_to_spkr(), parse_aux_data(), and parse_coding_header().

ff_dca_dmix_primary_nch

const uint8_t ff_dca_dmix_primary_nch[8]

Initial value:

= {
    1, 2, 2, 3, 3, 4, 4, 0
}

Definition at line 45 of file dcadata.c.

Referenced by parse_aux_data(), and parse_dmix_coeffs().

ff_dca_quant_index_sel_nbits

const uint8_t ff_dca_quant_index_sel_nbits[DCA_CODE_BOOKS]

Initial value:

= {
    1, 2, 2, 2, 2, 3, 3, 3, 3, 3
}

Definition at line 49 of file dcadata.c.

Referenced by parse_coding_header(), parse_x96_coding_header(), and put_primary_audio_header().

ff_dca_quant_index_group_size

const uint8_t ff_dca_quant_index_group_size[DCA_CODE_BOOKS]

Initial value:

= {
    1, 3, 3, 3, 3, 7, 7, 7, 7, 7
}

Definition at line 53 of file dcadata.c.

Referenced by accumulate_huff_bit_consumption(), encode_init(), extract_audio(), parse_coding_header(), put_primary_audio_header(), put_subframe_samples(), and set_best_code().

ff_dca_adpcm_vb

const int16_t ff_dca_adpcm_vb[DCA_ADPCM_VQCODEBOOK_SZ][DCA_ADPCM_COEFFS]

Definition at line 60 of file dcadata.c.

Referenced by ff_dcaadpcm_predict(), find_best_filter(), and precalc().

ff_dca_scale_factor_quant6

const uint32_t ff_dca_scale_factor_quant6[64]

Initial value:

= {
          1,       2,       2,       3,       3,       4,       6,       7,
         10,      12,      16,      20,      26,      34,      44,      56,
         72,      93,     120,     155,     200,     257,     331,     427,
        550,     708,     912,    1175,    1514,    1950,    2512,    3236,
       4169,    5370,    6918,    8913,   11482,   14791,   19055,   24547,
      31623,   40738,   52481,   67608,   87096,  112202,  144544,  186209,
     239883,  309030,  398107,  512861,  660693,  851138, 1096478, 1412538,
    1819701, 2344229, 3019952, 3890451, 5011872, 6456542, 8317638,       0
}

Definition at line 4161 of file dcadata.c.

Referenced by parse_scale(), and parse_xbr_subframe().

ff_dca_scale_factor_quant7

const uint32_t ff_dca_scale_factor_quant7[128]

Initial value:

= {
          1,       1,       2,       2,       2,       2,       3,       3,
          3,       4,       4,       5,       6,       7,       7,       8,
         10,      11,      12,      14,      16,      18,      20,      23,
         26,      30,      34,      38,      44,      50,      56,      64,
         72,      82,      93,     106,     120,     136,     155,     176,
        200,     226,     257,     292,     331,     376,     427,     484,
        550,     624,     708,     804,     912,    1035,    1175,    1334,
       1514,    1718,    1950,    2213,    2512,    2851,    3236,    3673,
       4169,    4732,    5370,    6095,    6918,    7852,    8913,   10116,
      11482,   13032,   14791,   16788,   19055,   21627,   24547,   27861,
      31623,   35892,   40738,   46238,   52481,   59566,   67608,   76736,
      87096,   98855,  112202,  127350,  144544,  164059,  186209,  211349,
     239883,  272270,  309030,  350752,  398107,  451856,  512861,  582103,
     660693,  749894,  851138,  966051, 1096478, 1244515, 1412538, 1603245,
    1819701, 2065380, 2344229, 2660725, 3019952, 3427678, 3890451, 4415704,
    5011872, 5688529, 6456542, 7328245, 8317638,       0,       0,       0
}

Definition at line 4172 of file dcadata.c.

Referenced by fill_in_adpcm_bufer(), parse_scale(), parse_subframe_audio(), parse_xbr_subframe(), and quantize_adpcm_subband().

ff_dca_joint_scale_factors

const uint32_t ff_dca_joint_scale_factors[129]

Initial value:

= {
       3288,    3490,    3691,    3909,    4144,    4387,    4647,    4924,
       5218,    5528,    5855,    6199,    6568,    6963,    7374,    7810,
       8271,    8758,    9278,    9831,   10410,   11031,   11685,   12373,
      13103,   13883,   14705,   15578,   16500,   17482,   18514,   19613,
      20770,   22003,   23312,   24688,   26156,   27699,   29343,   31080,
      32925,   34871,   36943,   39133,   41448,   43906,   46506,   49258,
      52177,   55273,   58544,   62017,   65691,   69584,   73711,   78073,
      82703,   87602,   92795,   98289,  104111,  110285,  116820,  123740,
     131072,  138840,  147069,  155776,  165012,  174785,  185145,  196117,
     207735,  220042,  233086,  246894,  261523,  277017,  293434,  310823,
     329236,  348748,  369409,  391303,  414490,  439043,  465064,  492621,
     521805,  552725,  585475,  620170,  656920,  695843,  737073,  780745,
     827008,  876014,  927923,  982902, 1041144, 1102834, 1168181, 1237404,
    1310720, 1388382, 1470649, 1557790, 1650098, 1747876, 1851441, 1961147,
    2077355, 2200441, 2330825, 2468935, 2615232, 2770195, 2934335, 3108206,
    3292378, 3487463, 3694108, 3913000, 4144862, 4390455, 4650611, 4926176,
    5218066
}

Definition at line 4191 of file dcadata.c.

Referenced by parse_joint_scale().

ff_dca_scale_factor_adj

const uint32_t ff_dca_scale_factor_adj[4]

Initial value:

= {
    4194304, 4718592, 5242880, 6029312
}

Definition at line 4211 of file dcadata.c.

Referenced by parse_coding_header().

ff_dca_quant_levels

const uint32_t ff_dca_quant_levels[32]

Initial value:

= {
          1,       3,       5,     7,      9,     13,     17,      25,
         32,      64,     128,   256,    512,   1024,   2048,    4096,
       8192,   16384,   32768, 65536, 131072, 262144, 524288, 1048576,
    2097152, 4194304, 8388608,     0,      0,      0,      0,       0
}

Definition at line 4215 of file dcadata.c.

Referenced by calc_one_scale(), parse_block_codes(), and put_subframe_samples().

ff_dca_lossy_quant

const uint32_t ff_dca_lossy_quant[32]

Initial value:

= {
         0, 6710886, 4194304, 3355443, 2474639, 2097152, 1761608, 1426063,
    796918,  461373,  251658,  146801,   79692,   46137,   27263,   16777,
     10486,    5872,    3355,    1887,    1258,     713,     336,     168,
        84,      42,      21,       0,       0,       0,       0,       0
}

Definition at line 4223 of file dcadata.c.

Referenced by get_step_size(), parse_subframe_audio(), and parse_x96_subframe_audio().

ff_dca_lossless_quant

const uint32_t ff_dca_lossless_quant[32]

Initial value:

= {
         0, 4194304, 2097152, 1384120, 1048576, 696254, 524288, 348127,
    262144,  131072,   65431,   33026,   16450,   8208,   4100,   2049,
      1024,     512,     256,     128,      64,     32,     16,      8,
         4,       2,       1,       0,       0,      0,      0,      0
}

Definition at line 4231 of file dcadata.c.

Referenced by get_step_size(), parse_subframe_audio(), parse_x96_subframe_audio(), and parse_xbr_subframe().

ff_dca_high_freq_vq

const int8_t ff_dca_high_freq_vq[1024][32]

Definition at line 4240 of file dcadata.c.

Referenced by parse_subframe_audio(), and parse_x96_subframe_audio().

ff_dca_fir_32bands_perfect

const float ff_dca_fir_32bands_perfect[512]

Definition at line 6293 of file dcadata.c.

Referenced by checkasm_check_synth_filter(), encode_init(), and filter_frame_float().

ff_dca_fir_32bands_nonperfect

const float ff_dca_fir_32bands_nonperfect[512]

Definition at line 6808 of file dcadata.c.

Referenced by checkasm_check_synth_filter(), encode_init(), and filter_frame_float().

ff_dca_lfe_fir_64

const float ff_dca_lfe_fir_64[256]

Definition at line 7339 of file dcadata.c.

Referenced by encode_init(), and filter_frame_float().

ff_dca_lfe_fir_128

const float ff_dca_lfe_fir_128[256]

Definition at line 7482 of file dcadata.c.

Referenced by filter_frame_float().

ff_dca_fir_64bands

const float ff_dca_fir_64bands[1024]

Definition at line 7550 of file dcadata.c.

Referenced by filter_frame_float().

ff_dca_fir_32bands_perfect_fixed

const int32_t ff_dca_fir_32bands_perfect_fixed[512]

Definition at line 8074 of file dcadata.c.

Referenced by ff_dca_core_filter_fixed().

ff_dca_fir_32bands_nonperfect_fixed

const int32_t ff_dca_fir_32bands_nonperfect_fixed[512]

Definition at line 8205 of file dcadata.c.

Referenced by ff_dca_core_filter_fixed().

ff_dca_lfe_fir_64_fixed

const int32_t ff_dca_lfe_fir_64_fixed[256]

Definition at line 8336 of file dcadata.c.

Referenced by ff_dca_core_filter_fixed().

ff_dca_fir_64bands_fixed

const int32_t ff_dca_fir_64bands_fixed[1024]

Definition at line 8371 of file dcadata.c.

Referenced by ff_dca_core_filter_fixed().

ff_dca_dmixtable

const uint16_t ff_dca_dmixtable[FF_DCA_DMIXTABLE_SIZE]

Definition at line 8642 of file dcadata.c.

Referenced by parse_aux_data(), parse_coding_header(), and parse_dmix_coeffs().

ff_dca_inv_dmixtable

const uint32_t ff_dca_inv_dmixtable[FF_DCA_INV_DMIXTABLE_SIZE]

Initial value:

= {
    6553600, 6186997, 5840902, 5514167, 5205710, 4914507, 4639593, 4380059,
    4135042, 3903731, 3685360, 3479204, 3284581, 3100844, 2927386, 2763630,
    2609035, 2463088, 2325305, 2195230, 2072430, 2013631, 1956500, 1900990,
    1847055, 1794651, 1743733, 1694260, 1646190, 1599484, 1554103, 1510010,
    1467168, 1425542, 1385096, 1345798, 1307615, 1270515, 1234468, 1199444,
    1165413, 1132348, 1100221, 1069005, 1038676, 1009206,  980573,  952752,
     925721,  899456,  873937,  849141,  825049,  801641,  778897,  756798,
     735326,  714463,  694193,  674497,  655360,  636766,  618700,  601146,
     584090,  567518,  551417,  535772,  520571,  505801,  491451,  477507,
     463959,  450796,  438006,  425579,  413504,  401772,  390373,  379297,
     368536,  363270,  358080,  352964,  347920,  342949,  338049,  333219,
     328458,  323765,  319139,  314579,  310084,  305654,  301287,  296982,
     292739,  288556,  284433,  280369,  276363,  272414,  268522,  264685,
     260904,  257176,  253501,  249879,  246309,  242790,  239321,  235901,
     232531,  229208,  225933,  222705,  219523,  216386,  213295,  210247,
     207243,  204282,  201363,  198486,  195650,  192855,  190099,  187383,
     184706,  182066,  179465,  176901,  174373,  171882,  169426,  167005,
     164619,  162267,  159948,  157663,  155410,  153190,  151001,  148844,
     146717,  144621,  142554,  140517,  138510,  136531,  134580,  132657,
     130762,  128893,  127052,  125236,  123447,  121683,  119944,  118231,
     116541,  114876,  113235,  111617,  110022,  108450,  106901,  105373,
     103868,  102383,  100921,   99479,   98057,   96656,   95275,   93914,
      92682,   91249,   89946,   88660,   87394,   86145,   84914,   83701,
      82505,   81326,   80164,   79019,   77890,   76777,   75680,   74598,
      73533,   72482,   71446,   70425,   69419,   68427,   67450,   66486,
      65536,
}

Definition at line 8676 of file dcadata.c.

Referenced by parse_coding_header(), and parse_dmix_coeffs().

ff_dca_xll_refl_coeff

const uint16_t ff_dca_xll_refl_coeff[128]

Initial value:

= {
        0,  3070,  5110,  7140,  9156, 11154, 13132, 15085,
    17010, 18904, 20764, 22588, 24373, 26117, 27818, 29474,
    31085, 32648, 34164, 35631, 37049, 38418, 39738, 41008,
    42230, 43404, 44530, 45609, 46642, 47630, 48575, 49477,
    50337, 51157, 51937, 52681, 53387, 54059, 54697, 55302,
    55876, 56421, 56937, 57426, 57888, 58326, 58741, 59132,
    59502, 59852, 60182, 60494, 60789, 61066, 61328, 61576,
    61809, 62029, 62236, 62431, 62615, 62788, 62951, 63105,
    63250, 63386, 63514, 63635, 63749, 63855, 63956, 64051,
    64140, 64224, 64302, 64376, 64446, 64512, 64573, 64631,
    64686, 64737, 64785, 64830, 64873, 64913, 64950, 64986,
    65019, 65050, 65079, 65107, 65133, 65157, 65180, 65202,
    65222, 65241, 65259, 65275, 65291, 65306, 65320, 65333,
    65345, 65357, 65368, 65378, 65387, 65396, 65405, 65413,
    65420, 65427, 65434, 65440, 65446, 65451, 65456, 65461,
    65466, 65470, 65474, 65478, 65481, 65485, 65488, 65491
}

Definition at line 8705 of file dcadata.c.

Referenced by chs_parse_header().

ff_dca_xll_band_coeff

const int32_t ff_dca_xll_band_coeff[20]

Initial value:

= {
      868669, -5931642, -1228483,  4194304,
      -20577,   122631,  -393647,   904476,
    -1696305,  2825313, -4430736,  6791313,
       41153,  -245210,   785564, -1788164,
     3259333, -5074941,  6928550, -8204883
}

Definition at line 8724 of file dcadata.c.

Referenced by chs_assemble_freq_bands().

ff_dca_avg_g3_freqs

const uint16_t ff_dca_avg_g3_freqs[3] = { 16000, 18000, 24000 }

Definition at line 8732 of file dcadata.c.

Referenced by parse_decoder_init().

ff_dca_fst_amp

const uint16_t ff_dca_fst_amp[44]

Initial value:

= {
       0,    1,    2,    3,
       4,    6,    8,   10,
      12,   16,   20,   24,
      28,   36,   44,   52,
      60,   76,   92,  108,
     124,  156,  188,  220,
     252,  316,  380,  444,
     508,  636,  764,  892,
    1020, 1276, 1532, 1788,
    2044, 2556, 3068, 3580,
    4092, 5116, 6140, 7164
}

Definition at line 8734 of file dcadata.c.

Referenced by parse_tonal().

ff_dca_freq_to_sb

const uint8_t ff_dca_freq_to_sb[32]

Initial value:

= {
    0, 1, 2, 2, 3, 3, 3, 3, 4, 4, 4, 4, 4, 4, 4, 4,
    5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5
}

Definition at line 8748 of file dcadata.c.

Referenced by parse_tonal().

ff_dca_ph0_shift

const int8_t ff_dca_ph0_shift[8]

Initial value:

= {
    -32, +96, -96, +32, +96, -32, +32, -96
}

Definition at line 8753 of file dcadata.c.

Referenced by parse_tonal().

ff_dca_grid_1_to_scf

const uint8_t ff_dca_grid_1_to_scf[11]

Initial value:

= {
    0, 1, 2, 3, 4, 6, 7, 10, 14, 19, 26
}

Definition at line 8757 of file dcadata.c.

Referenced by parse_grid_1_chunk(), and parse_grid_1_sec_ch().

ff_dca_grid_2_to_scf

const uint8_t ff_dca_grid_2_to_scf[3]

Initial value:

= {
    4, 10, 18
}

Definition at line 8761 of file dcadata.c.

Referenced by parse_grid_2().

ff_dca_scf_to_grid_1

const uint8_t ff_dca_scf_to_grid_1[32]

Initial value:

= {
    0, 1, 2, 3, 4, 4, 5, 5, 5, 6, 6, 6, 6, 7, 7, 7,
    7, 7, 8, 8, 8, 8, 8, 8, 9, 9, 9, 9, 9, 9, 9, 10
}

Definition at line 8765 of file dcadata.c.

Referenced by decode_grid(), parse_grid_1_chunk(), and parse_grid_1_sec_ch().

ff_dca_scf_to_grid_2

const uint8_t ff_dca_scf_to_grid_2[32]

Initial value:

= {
    0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 1, 1, 1, 1, 1,
    1, 1, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2
}

Definition at line 8770 of file dcadata.c.

Referenced by filter_ts(), and parse_grid_2().

ff_dca_grid_1_weights

const uint8_t ff_dca_grid_1_weights[12][32]

Definition at line 8775 of file dcadata.c.

Referenced by decode_grid().

ff_dca_sb_reorder

const uint8_t ff_dca_sb_reorder[8][8]

Initial value:

= {
    { 0, 1, 2, 3, 4, 5, 6, 7 },
    { 1, 0, 2, 3, 4, 5, 6, 7 },
    { 3, 1, 0, 2, 4, 5, 6, 7 },
    { 1, 2, 3, 0, 4, 5, 6, 7 },
    { 1, 2, 5, 3, 0, 4, 6, 7 },
    { 1, 2, 2, 5, 3, 0, 4, 6 },
    { 1, 2, 2, 6, 5, 3, 0, 4 },
    { 1, 2, 2, 6, 5, 4, 0, 3 }
}

Definition at line 8836 of file dcadata.c.

Referenced by parse_high_res_grid().

ff_dca_lfe_delta_index_16

const int8_t ff_dca_lfe_delta_index_16[8]

Initial value:

= {
    -4, -3, -2, -1, 2, 4, 6, 8
}

Definition at line 8847 of file dcadata.c.

Referenced by parse_lfe_16().

ff_dca_lfe_delta_index_24

const int8_t ff_dca_lfe_delta_index_24[32]

Initial value:

= {
    -8, -8, -7, -7, -6, -6, -5, -5, -4, -4, -3, -3, -2, -2, -1, -1,
     1,  1,  2,  2,  3,  3,  4,  4,  5,  5,  6,  6,  7,  7,  8,  8
}

Definition at line 8851 of file dcadata.c.

Referenced by parse_lfe_24().

ff_dca_rsd_pack_5_in_8

const uint16_t ff_dca_rsd_pack_5_in_8[256]

Definition at line 8856 of file dcadata.c.

Referenced by parse_ch().

ff_dca_rsd_pack_3_in_7

const uint8_t ff_dca_rsd_pack_3_in_7[128][3]

Definition at line 8891 of file dcadata.c.

Referenced by parse_ch().

ff_dca_rsd_level_2a

const float ff_dca_rsd_level_2a[2]

Initial value:

= {
    -0.47, 0.47
}

Definition at line 8926 of file dcadata.c.

Referenced by parse_ch().

ff_dca_rsd_level_2b

const float ff_dca_rsd_level_2b[2]

Initial value:

= {
    -0.645, 0.645
}

Definition at line 8930 of file dcadata.c.

Referenced by parse_ch().

ff_dca_rsd_level_3

const float ff_dca_rsd_level_3[3]

Initial value:

= {
    -0.645, 0.0, 0.645
}

Definition at line 8934 of file dcadata.c.

Referenced by parse_ch().

ff_dca_rsd_level_5

const float ff_dca_rsd_level_5[5]

Initial value:

= {
    -0.875, -0.375, 0.0, 0.375, 0.875
}

Definition at line 8938 of file dcadata.c.

Referenced by parse_ch().

ff_dca_rsd_level_8

const float ff_dca_rsd_level_8[8]

Initial value:

= {
    -1.0, -0.625, -0.291666667, 0.0, 0.25, 0.5, 0.75, 1.0
}

Definition at line 8942 of file dcadata.c.

Referenced by parse_ch().

ff_dca_rsd_level_16

const float ff_dca_rsd_level_16[16]

Initial value:

= {
    -1.3125, -1.1375, -0.9625, -0.7875,
    -0.6125, -0.4375, -0.2625, -0.0875,
     0.0875,  0.2625,  0.4375,  0.6125,
     0.7875,  0.9625,  1.1375,  1.3125
}

Definition at line 8946 of file dcadata.c.

Referenced by parse_ch().

ff_dca_synth_env

const float ff_dca_synth_env[32]

Initial value:

= {
    0.00240763666390, 0.00960735979838, 0.02152983213390, 0.03806023374436,
    0.05903936782582, 0.08426519384873, 0.11349477331863, 0.14644660940673,
    0.18280335791818, 0.22221488349020, 0.26430163158700, 0.30865828381746,
    0.35485766137277, 0.40245483899194, 0.45099142983522, 0.5,
    0.54900857016478, 0.59754516100806, 0.64514233862723, 0.69134171618254,
    0.73569836841300, 0.77778511650980, 0.81719664208182, 0.85355339059327,
    0.88650522668137, 0.91573480615127, 0.94096063217418, 0.96193976625564,
    0.97847016786610, 0.99039264020162, 0.99759236333610, 1.0
}

Definition at line 8953 of file dcadata.c.

Referenced by synth_tones().

ff_dca_corr_cf

const float ff_dca_corr_cf[32][11]

Definition at line 8964 of file dcadata.c.

Referenced by synth_tones().

ff_dca_quant_amp

const float ff_dca_quant_amp[57]

Initial value:

= {
    4.88281250E-04, 1.46484375E-03, 2.32267031E-03, 3.28475167E-03,
    4.64534014E-03, 6.56950334E-03, 9.29068029E-03, 1.31390067E-02,
    1.85813606E-02, 2.62780134E-02, 3.71627212E-02, 5.25560267E-02,
    7.43254423E-02, 1.05112053E-01, 1.48650885E-01, 2.10224107E-01,
    2.97301769E-01, 4.20448214E-01, 5.94603539E-01, 8.40896428E-01,
    1.18920708E+00, 1.68179286E+00, 2.37841415E+00, 3.36358571E+00,
    4.75682831E+00, 6.72717142E+00, 9.51365662E+00, 1.34543428E+01,
    1.90273132E+01, 2.69086857E+01, 3.80546265E+01, 5.38173714E+01,
    7.61092529E+01, 1.07634743E+02, 1.52218506E+02, 2.15269485E+02,
    3.04437012E+02, 4.30538971E+02, 6.08874023E+02, 8.61077942E+02,
    1.21774805E+03, 1.72215588E+03, 2.43549609E+03, 3.44431177E+03,
    4.87099219E+03, 6.88862354E+03, 9.74198438E+03, 1.37772471E+04,
    1.94839688E+04, 2.75544941E+04, 3.89679375E+04, 5.51089883E+04,
    7.79358750E+04, 1.10217977E+05, 1.55871750E+05, 2.20435953E+05,
    0.00000000E+00,
}

Definition at line 9031 of file dcadata.c.

Referenced by filter_ts(), and synth_tones().

ff_dca_st_coeff

const float ff_dca_st_coeff[34]

Initial value:

= {
    2.69086857E+01, 2.69086857E+01, 1.34543419E+01, 6.72717142E+00,
    3.36358571E+00, 1.68179286E+00, 8.40896428E-01, 5.94603479E-01,
    4.20448214E-01, 2.97301799E-01, 2.10224107E-01, 1.48650900E-01,
    1.05112098E-01, 7.43253976E-02, 5.25560006E-02, 3.71626988E-02,
    3.12500000E-02, 2.62780003E-02, 1.85813997E-02, 1.31390002E-02,
    9.29069985E-03, 6.56950008E-03, 4.64530010E-03, 3.28480010E-03,
    2.32270011E-03, 1.64240005E-03, 1.16130000E-03, 5.80699998E-04,
    2.90299999E-04, 1.45200000E-04, 7.25999998E-05, 3.62999999E-05,
    1.82000003E-05, 0.00000000E+00,
}

Definition at line 9049 of file dcadata.c.

Referenced by decode_part_stereo(), and parse_st_code().

ff_dca_long_window

const float ff_dca_long_window[128]

Definition at line 9061 of file dcadata.c.

Referenced by init_sample_rate().

ff_dca_lfe_step_size_16

const float ff_dca_lfe_step_size_16[101]

Definition at line 9096 of file dcadata.c.

Referenced by parse_lfe_16().

ff_dca_lfe_step_size_24

const float ff_dca_lfe_step_size_24[144]

Definition at line 9133 of file dcadata.c.

Referenced by parse_lfe_24().

ff_dca_bank_coeff

const float ff_dca_bank_coeff[10]

Initial value:

= {
    0.022810893, 0.41799772, 0.90844810, 0.99973983,
    0.068974845, 0.34675997, 0.29396889, 0.19642374,
    0.308658270, 0.038060233
}

Definition at line 9184 of file dcadata.c.

Referenced by transform_channel().

ff_dca_lfe_iir

const float ff_dca_lfe_iir[5][4]

Initial value:

= {
    { -0.98618466, 1.9861259, 1.0, -1.9840510 },
    { -0.98883152, 1.9887193, 1.0, -1.9979848 },
    { -0.99252087, 1.9923381, 1.0, -1.9990897 },
    { -0.99591690, 1.9956781, 1.0, -1.9993745 },
    { -0.99872285, 1.9984550, 1.0, -1.9994639 }
}

Definition at line 9190 of file dcadata.c.

Referenced by ff_dca_lbr_filter_frame().