ra288.h

mediastreamer2是开源的网络传输媒体流的库

/*
 * 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,