FFmpeg/libavcodec/ra288.h

/*
 * RealAudio 2.0 (28.8K)
 * Copyright (c) 2003 the ffmpeg project
 *
 * 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
 */

#ifndef FFMPEG_RA288_H
#define FFMPEG_RA288_H

static const float amptable[8]={ 0.515625, 0.90234375, 1.57910156, 2.76342773,
                         -0.515625,-0.90234375,-1.57910156,-2.76342773 };

static const float codetable[640]={
 0.326171875,   -1.4404296875,  -0.6123046875,  -0.8740234375,  -1.24658203125,
-2.45703125,    -2.23486328125, -0.51025390625,  1.419921875,    1.6201171875 ,
-1.37646484375, -1.30712890625, -0.462890625,   -1.37939453125, -2.1728515625 ,
-3.26123046875, -0.166015625,    0.7236328125,  -0.623046875,    0.6162109375 ,
-0.2744140625,  -3.29931640625,  0.62548828125,  0.08740234375, -0.6220703125 ,
-1.2265625,     -3.4814453125,  -2.40478515625,  3.37548828125,  1.17724609375,
-1.2099609375,  -0.076171875,    2.28662109375, -1.89111328125,  0            ,
-4.0078125,      1.044921875,   -0.2333984375,  -1.35986328125,  0.26025390625,
 0.92236328125,  1.34716796875,  0.67431640625, -3.39599609375, -2.88720703125,
 2.4814453125,  -1.201171875,   -2.8212890625,   0.87744140625,  0.27734375   ,
-1.078125,      -1.61572265625, -2.20849609375, -3.044921875,   -3.66455078125,
-1.32763671875,  2.1279296875,  -1.458984375,   -0.56103515625,  1.30078125   ,
 0.61474609375,  0.48583984375,  1.32373046875, -1.203125,      -5.0732421875 ,
 0.8408203125,  -3.69580078125, -1.3388671875,   1.06005859375, -1.13720703125,
 0.50390625,     0.36474609375, -0.4189453125,  -3.8798828125,  -6.27099609375,
 1.5166015625,   2.37109375,    -2.04736328125, -1.24072265625,  0.50537109375,
 0.9091796875,  -0.46875,       -3.236328125,    0.2001953125,   2.8720703125 ,
-1.21728515625, -1.283203125,   -1.953125,      -0.029296875,    3.5166015625 ,
-1.3046875,      0.7060546875,   0.75,          -1.87060546875,  0.60205078125,
-2.5888671875,   3.375,          0.77587890625, -2.04443359375,  1.78955078125,
-1.6875,        -3.9892578125,  -3.76416015625,  0.67578125,     2.2939453125 ,
-2.29443359375, -3.03173828125, -5.45703125,     3.95703125,     8.2177734375 ,
 0.4541015625,   3.419921875,    0.61962890625, -4.38330078125,  1.25341796875,
 2.27001953125,  5.763671875,    1.68017578125, -2.76220703125,  0.58544921875,
 1.2412109375,  -0.08935546875, -4.32568359375, -3.89453125,     1.5771484375 ,
-1.40234375,    -0.98193359375, -4.74267578125, -4.09423828125,  6.33935546875,
 1.5068359375,   1.044921875,   -1.796875,      -4.70849609375, -1.4140625    ,
-3.71533203125,  3.18115234375, -1.11474609375, -1.2314453125,   3.091796875  ,
-1.62744140625, -2.744140625,   -4.4580078125,  -5.43505859375,  2.70654296875,
-0.19873046875, -3.28173828125, -8.5283203125,  -1.41064453125,  5.6484375    ,
 1.802734375,    3.318359375,   -0.1279296875,  -5.2958984375,  -0.90625      ,
 3.55224609375,  6.544921875,   -1.45947265625, -5.17333984375,  2.41015625   ,
 0.119140625,   -1.08349609375,  1.296875,       1.84375,       -2.642578125  ,
-1.97412109375, -2.8974609375,   1.04052734375,  0.42138671875, -1.3994140625 ,
-1.6123046875,   0.85107421875, -0.9794921875,  -0.0625,        -1.001953125  ,
-3.10595703125,  1.6318359375,  -0.77294921875, -0.01025390625,  0.5576171875 ,
-1.87353515625, -0.89404296875,  3.12353515625,  1.24267578125, -1.390625     ,
-4.556640625,   -3.1875,         2.59228515625,  0.9697265625,  -1.09619140625,
-2.1923828125,   0.365234375,    0.94482421875, -1.47802734375, -0.24072265625,
-4.51904296875,  2.6201171875,   1.55908203125, -2.19384765625,  0.87109375   ,
 2.3359375,     -0.1806640625,   0.9111328125,   0.51611328125, -0.92236328125,
 3.5849609375,  -1.3134765625,  -1.25830078125,  0.330078125,   -0.29833984375,
-0.2451171875,   1.09130859375, -0.9033203125,  -0.86767578125, -1.00048828125,
 0.49365234375,  1.89453125,    -1.20361328125,  1.07861328125, -0.07421875   ,
 1.265625,       1.38134765625,  2.728515625,    1.38623046875, -3.5673828125 ,
-1.48876953125, -2.4013671875,   2.90771484375,  4.49267578125, -2.17138671875,
 0.34033203125,  1.908203125,    2.8310546875,  -2.17333984375, -2.267578125  ,
-1.03564453125,  2.658203125,   -1.2548828125,   0.15673828125, -0.5869140625 ,
 1.3896484375,  -1.0185546875,   1.724609375,    0.2763671875,  -0.345703125  ,
-2.08935546875,  0.4638671875,   2.431640625,    1.83056640625,  0.220703125  ,
-1.212890625,    1.7099609375,   0.83935546875, -0.0830078125,   0.1162109375 ,
-1.67724609375,  0.12841796875,  1.0322265625,  -0.97900390625,  1.15283203125,
-3.5830078125,  -0.58984375,     4.56396484375, -0.59375,       -1.95947265625,
-6.5908203125,  -0.21435546875,  3.919921875,   -2.06640625,     0.17626953125,
-1.82080078125,  2.65283203125,  0.978515625,   -2.30810546875, -0.61474609375,
-1.9462890625,   3.78076171875,  4.11572265625, -1.80224609375, -0.48193359375,
 2.5380859375,  -0.20654296875,  0.5615234375,  -0.62548828125,  0.3984375    ,
 3.61767578125,  2.00634765625, -1.92822265625,  1.3134765625, 0.0146484384313,
 0.6083984375,   1.49169921875, -0.01708984375, -0.6689453125,  -0.1201171875 ,
-0.72705078125,  2.75146484375, -0.3310546875,  -1.28271484375,  1.5478515625 ,
 2.3583984375,  -2.23876953125,  0.98046875,    -0.5185546875,   0.39013671875,
-0.06298828125,  0.35009765625,  2.2431640625,   7.29345703125,  5.2275390625 ,
 0.20361328125,  1.34716796875,  0.9033203125,  -2.46923828125, -0.56298828125,
-1.89794921875,  3.59423828125, -2.81640625,     2.09228515625,  0.3251953125 ,
 0.70458984375, -0.4580078125,   0.009765625,   -1.03466796875, -0.82861328125,
-1.8125,        -1.6611328125,  -1.080078125,    0.0537109375,   1.04296875   ,
-1.44140625,     0.005859375,   -0.765625,      -1.708984375,   -0.90576171875,
-0.64208984375, -0.84521484375,  0.56640625,    -0.2724609375,   0.83447265625,
 0.04296875,    -2.23095703125,  0.0947265625,  -0.2216796875,  -1.44384765625,
-1.38623046875, -0.8134765625,  -0.13330078125,  1.017578125,   -0.07568359375,
-0.09228515625, -1.16015625,     0.81201171875, -0.5078125,     -1.19580078125,
-1.3876953125,  -0.66845703125,  0.310546875,   -0.12109375,    -1.30712890625,
 0.74072265625,  0.03857421875, -1.47119140625, -1.79150390625, -0.47509765625,
 0.93408203125, -1.21728515625, -2.59375,       -0.36572265625,  0.62060546875,
-1.41748046875, -1.623046875,   -1.833984375,   -1.8017578125,  -0.89306640625,
-1.42236328125, -0.75537109375, -1.34765625,    -0.6865234375,   0.548828125  ,
 0.900390625,   -0.8955078125,   0.22265625,     0.3447265625,  -2.0859375    ,
 0.22802734375, -2.078125,      -0.93212890625,  0.74267578125,  0.5537109375 ,
-0.06201171875, -0.4853515625,  -0.31103515625, -0.72802734375, -3.1708984375 ,
 0.42626953125, -0.99853515625, -1.869140625,   -1.36328125,    -0.2822265625 ,
 1.12841796875, -0.88720703125,  1.28515625,    -1.490234375,    0.9609375    ,
 0.31298828125,  0.5830078125,   0.92431640625,  2.00537109375,  3.0966796875 ,
-0.02197265625,  0.5849609375,   1.0546875,     -0.70751953125,  1.07568359375,
-0.978515625,    0.83642578125,  1.7177734375,   1.294921875,    2.07568359375,
 1.43359375,    -1.9375,         0.625,          0.06396484375, -0.720703125  ,
 1.38037109375,  0.00390625,    -0.94140625,     1.2978515625,   1.71533203125,
 1.56201171875, -0.3984375,      1.31201171875, -0.85009765625, -0.68701171875,
 1.439453125,    1.96728515625,  0.1923828125,  -0.12353515625,  0.6337890625 ,
 2.0927734375,   0.02490234375, -2.20068359375, -0.015625,      -0.32177734375,
 1.90576171875,  2.7568359375,  -2.728515625,   -1.265625,       2.78662109375,
-0.2958984375,   0.6025390625,  -0.78466796875, -2.53271484375,  0.32421875   ,
-0.25634765625,  1.767578125,   -1.0703125,     -1.23388671875,  0.83349609375,
 2.09814453125, -1.58740234375, -1.11474609375,  0.396484375,   -1.10546875   ,
 2.81494140625,  0.2578125,     -1.60498046875,  0.66015625,     0.81640625   ,
 1.33544921875,  0.60595703125, -0.53857421875, -1.59814453125, -1.66357421875,
 1.96923828125,  0.8046875,     -1.44775390625, -0.5732421875,   0.705078125  ,
 0.0361328125,   0.4482421875,   0.97607421875,  0.44677734375, -0.5009765625 ,
-1.21875,       -0.78369140625,  0.9931640625,   1.4404296875,   0.11181640625,
-1.05859375,     0.99462890625,0.00732421921566,-0.6171875,     -0.1015625    ,
-1.734375,       0.7470703125,   0.28369140625,  0.72802734375,  0.4697265625 ,
-1.27587890625, -1.1416015625,   1.76806640625, -0.7265625,     -1.06689453125,
-0.85302734375,  0.03955078125,  2.7041015625,   0.69921875,    -1.10205078125,
-0.49755859375,  0.42333984375,  0.1044921875,  -1.115234375,   -0.7373046875 ,
-0.822265625,    1.375,         -0.11181640625,  1.24560546875, -0.67822265625,
 1.32177734375,  0.24609375,     0.23388671875,  1.35888671875, -0.49267578125,
 1.22900390625, -0.72607421875, -0.779296875,    0.30322265625,  0.94189453125,
-0.072265625,    1.0771484375,  -2.09375,        0.630859375,   -0.68408203125,
-0.25732421875,  0.60693359375, -1.33349609375,  0.93212890625,  0.625        ,
 1.04931640625, -0.73291015625,  1.80078125,     0.2978515625,  -2.24169921875,
 1.6142578125,  -1.64501953125,  0.91552734375,  1.775390625,   -0.59423828125,
 1.2568359375,   1.22705078125,  0.70751953125, -1.5009765625,  -2.43115234375,
 0.3974609375,   0.8916015625,  -1.21923828125,  2.0673828125,  -1.99072265625,
 0.8125,        -0.107421875,    1.6689453125,   0.4892578125,   0.54443359375,
 0.38134765625,  0.8095703125,   1.91357421875,  2.9931640625,   1.533203125  ,
 0.560546875,    1.98486328125,  0.740234375,    0.39794921875,  0.09716796875,
 0.58154296875,  1.21533203125,  1.25048828125,  1.18212890625,  1.19287109375,
 0.3759765625,  -2.88818359375,  2.69287109375, -0.1796875,     -1.56201171875,
 0.5810546875,   0.51123046875,  1.8271484375,   3.38232421875, -1.02001953125,
 0.142578125,    1.51318359375,  2.103515625,   -0.3701171875,  -1.19873046875,
 0.25537109375,  1.91455078125,  1.974609375,    0.6767578125,   0.04150390625,
 2.13232421875,  0.4912109375,  -0.611328125,   -0.7158203125,  -0.67529296875,
 1.880859375,    0.77099609375, -0.03759765625,  1.0078125,      0.423828125  ,
 2.49462890625,  1.42529296875, -0.0986328125,   0.17529296875, -0.24853515625,
 1.7822265625,   1.5654296875,   1.12451171875,  0.82666015625,  0.6328125    ,
 1.41845703125, -1.90771484375,  0.11181640625, -0.583984375,   -1.138671875  ,
 2.91845703125, -1.75048828125,  0.39306640625,  1.86767578125, -1.5322265625 ,
 1.8291015625,  -0.2958984375,   0.02587890625, -0.13134765625, -1.61181640625,
 0.2958984375,   0.9853515625,  -0.642578125,    1.984375,       0.1943359375
};

static const float table1[111]={
        0.576690972,        0.580838025,        0.585013986,        0.589219987,        0.59345597,        0.597723007,
        0.602020264,        0.606384277,        0.610748291,        0.615142822,        0.619598389,        0.624084473,
        0.628570557,        0.633117676,        0.637695313,        0.642272949,        0.646911621,        0.651580811,
        0.656280518,        0.66104126,        0.665802002,        0.670593262,        0.675445557,        0.680328369,
        0.685241699,        0.690185547,        0.695159912,        0.700164795,        0.705230713,        0.710327148,
        0.715454102,        0.720611572,        0.725830078,        0.731048584,        0.736328125,        0.741638184,
        0.747009277,        0.752380371,        0.7578125,        0.763305664,        0.768798828,        0.774353027,
        0.779937744,        0.785583496,        0.791229248,        0.796936035,        0.802703857,        0.808502197,
        0.814331055,        0.820220947,        0.826141357,        0.832092285,        0.838104248,        0.844146729,
        0.850250244,        0.856384277,        0.862548828,        0.868774414,        0.875061035,        0.881378174,
        0.88772583,        0.894134521,        0.900604248,        0.907104492,        0.913635254,        0.920227051,
        0.926879883,        0.933563232,        0.940307617,        0.94708252,        0.953918457,        0.96081543,
        0.96774292,        0.974731445,        0.981781006,        0.988861084,        0.994842529,        0.998565674,
        0.999969482,        0.99911499,        0.996002197,        0.990600586,        0.982910156,        0.973022461,
        0.960876465,        0.946533203,        0.930053711,        0.911437988,        0.89074707,        0.868041992,
        0.843322754,        0.816680908,        0.788208008,        0.757904053,        0.725891113,        0.692199707,
        0.656921387,        0.620178223,        0.582000732,        0.542480469,        0.501739502,        0.459838867,
        0.416900635,        0.373016357,        0.328277588,        0.282775879,        0.236663818,        0.189971924,
        0.142852783,        0.0954284668,        0.0477600098
};

static const float table2[38]={
        0.505699992,        0.524200022,        0.54339999,        0.563300014,        0.583953857,        0.60534668,
        0.627502441,        0.650482178,        0.674316406,        0.699005127,        0.724578857,        0.75112915,
        0.778625488,        0.807128906,        0.836669922,        0.86730957,        0.899078369,        0.932006836,
        0.961486816,        0.982757568,        0.995635986,        1,                0.995819092,        0.983154297,
        0.96206665,        0.932769775,        0.895507813,        0.850585938,        0.798400879,        0.739379883,
        0.674072266,        0.602996826,        0.526763916,        0.446014404,        0.361480713,        0.273834229,
        0.183868408,        0.0923461914
};

static const float table1a[36]={
        0.98828125,        0.976699829,        0.965254128,        0.953942537,        0.942763507,        0.931715488,
        0.920796931,        0.910006344,        0.899342179,        0.888803005,        0.878387332,        0.868093729,
        0.857920766,        0.847867012,        0.837931097,        0.828111589,        0.818407178,        0.808816493,
        0.799338162,        0.789970934,        0.780713439,        0.771564424,        0.762522638,        0.753586829,
        0.744755745,        0.736028135,        0.727402806,        0.718878567,        0.710454226,        0.702128589,
        0.693900526,        0.685768902,        0.677732527,        0.669790328,        0.66194123,        0.654184103
};

static const float table2a[10]={
        0.90625,        0.821289063,        0.74432373,        0.674499512,        0.61126709,
        0.553955078,        0.50201416,        0.454956055,        0.41229248,        0.373657227
};

#endif /* FFMPEG_RA288_H */