dolby_e.h

/*
 * Copyright (C) 2017 foo86
 *
 * 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 AVCODEC_DOLBY_E_H
#define AVCODEC_DOLBY_E_H

#include "libavutil/float_dsp.h"
#include "libavutil/libm.h"
#include "libavutil/mem.h"

#include "internal.h"
#include "get_bits.h"
#include "kbdwin.h"
#include "fft.h"

#define FRAME_SAMPLES   1792

#define MAX_PROG_CONF   23
#define MAX_PROGRAMS    8
#define MAX_CHANNELS    8
#define MAX_SEGMENTS    2

#define MAX_GROUPS      8
#define MAX_EXPONENTS   304
#define MAX_MANTISSAS   1024

#define MAX_MSTR_EXP    2
#define MAX_BIAS_EXP    50

typedef struct DBEGroup {
    uint8_t         nb_exponent;
    uint8_t         nb_bias_exp[MAX_MSTR_EXP];
    uint16_t        exp_ofs;
    uint16_t        mnt_ofs;
    const uint8_t   *nb_mantissa;
    uint8_t         imdct_idx;
    uint8_t         imdct_phs;
    uint16_t        win_len;
    uint16_t        dst_ofs;
    uint16_t        win_ofs;
    uint16_t        src_ofs;
} DBEGroup;

typedef struct DBEChannel {
    int     gr_code;
    int     bw_code;

    int         nb_groups;
    int         nb_mstr_exp;
    DBEGroup    groups[MAX_GROUPS];

    int     exp_strategy[MAX_GROUPS];
    int     exponents[MAX_EXPONENTS];
    int     bap[MAX_EXPONENTS];
    int     idx[MAX_EXPONENTS];

    DECLARE_ALIGNED(32, float, mantissas)[MAX_MANTISSAS];
} DBEChannel;

typedef struct DBEContext {
    AVCodecContext  *avctx;
    GetBitContext   gb;

    uint8_t     *input;
    int         input_size;

    int         word_bits;
    int         word_bytes;
    int         key_present;

    int         prog_conf;
    int         nb_channels;
    int         nb_programs;

    int         fr_code;
    int         fr_code_orig;

    int         ch_size[MAX_CHANNELS];
    int         mtd_ext_size;
    int         meter_size;

    int         rev_id[MAX_CHANNELS];
    int         begin_gain[MAX_CHANNELS];
    int         end_gain[MAX_CHANNELS];

    int         multi_prog_warned;

    DBEChannel  channels[MAX_SEGMENTS][MAX_CHANNELS];

    DECLARE_ALIGNED(32, float, history)[MAX_CHANNELS][256];

    FFTContext          imdct[3];
    AVFloatDSPContext   *fdsp;

    uint8_t     buffer[1024 * 3 + AV_INPUT_BUFFER_PADDING_SIZE];
} DBEContext;

static const uint8_t nb_programs_tab[MAX_PROG_CONF + 1] = {
    2, 3, 2, 3, 4, 5, 4, 5, 6, 7, 8, 1, 2, 3, 3, 4, 5, 6, 1, 2, 3, 4, 1, 1
};

static const uint8_t nb_channels_tab[MAX_PROG_CONF + 1] = {
    8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 6, 6, 6, 6, 6, 6, 6, 4, 4, 4, 4, 8, 8
};

static const int8_t lfe_channel_tab[MAX_PROG_CONF + 1] = {
     5,  5, -1, -1, -1, -1, -1, -1, -1, -1, -1, 4,
    -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,  5, 5
};

static const uint8_t ch_reorder_4[4] = { 0, 2, 1, 3 };
static const uint8_t ch_reorder_6[6] = { 0, 2, 4, 1, 3, 5 };
static const uint8_t ch_reorder_8[8] = { 0, 2, 6, 4, 1, 3, 7, 5 };
static const uint8_t ch_reorder_n[8] = { 0, 2, 4, 6, 1, 3, 5, 7 };

static const uint16_t sample_rate_tab[16] = {
    0, 42965, 43008, 44800, 53706, 53760
};

static const uint8_t nb_groups_tab[4] = { 1, 8, 7, 1 };

static const uint8_t nb_mstr_exp_tab[4] = { 2, 2, 2, 1 };

static const uint8_t nb_mantissa_38[38] = {
     1,  1,  1,  1,  1,  1,  1,  1,  1,  1,  1,  1,  1,  1,  1,  1,
     2,  2,  2,  2,  2,  2,  3,  3,  3,  4,  4,  4,  5,  5,  6,  6,
     7,  8,  9, 10, 11, 12,
};

static const uint8_t nb_mantissa_44[44] = {
     1,  1,  1,  1,  1,  1,  1,  1,  1,  1,  1,  1,  1,  1,  1,  2,
     2,  2,  2,  2,  2,  3,  3,  3,  3,  4,  4,  5,  5,  6,  7,  7,
     8,  9, 10, 11, 12, 13, 15, 16, 18, 20, 22, 25,
};

static const uint8_t nb_mantissa_50[50] = {
     1,  1,  1,  1,  1,  1,  1,  1,  2,  2,  2,  2,  2,  3,  3,  3,
     3,  4,  4,  5,  5,  6,  6,  7,  8,  9,  9, 10, 12, 13, 14, 16,
    18, 19, 22, 24, 27, 29, 32, 36, 40, 44, 49, 54, 60, 66, 74, 82,
    90, 100,
};

static const uint8_t imdct_bits_tab[3] = { 8, 9, 11 };

static const DBEGroup grp_tab_0[1] = {
    { 50, { 27, 23 }, 0, 0, nb_mantissa_50, 2, 0, 1152, 0, 1408, 0 },
};

static const DBEGroup grp_tab_1[8] = {
    { 38, { 12, 26 }, 0, 0, nb_mantissa_38, 0, 0, 192, 0, 256, 0 },
    { 38, { 12, 26 }, 38, 128, nb_mantissa_38, 0, 1, 256, 64, 448, 0 },
    { 38, { 12, 26 }, 76, 256, nb_mantissa_38, 0, 1, 256, 192, 704, 0 },
    { 38, { 12, 26 }, 114, 384, nb_mantissa_38, 0, 1, 256, 320, 0, 0 },
    { 38, { 12, 26 }, 152, 512, nb_mantissa_38, 0, 1, 256, 448, 0, 0 },
    { 38, { 12, 26 }, 190, 640, nb_mantissa_38, 0, 1, 256, 576, 0, 0 },
    { 38, { 12, 26 }, 228, 768, nb_mantissa_38, 0, 1, 256, 704, 0, 0 },
    { 38, { 12, 26 }, 266, 896, nb_mantissa_38, 0, 1, 256, 832, 0, 0 },
};

static const DBEGroup grp_tab_2[7] = {
    { 38, { 12, 26 }, 0, 0, nb_mantissa_38, 0, 0, 192, 0, 256, 0 },
    { 38, { 12, 26 }, 38, 128, nb_mantissa_38, 0, 1, 256, 64, 448, 0 },
    { 38, { 12, 26 }, 76, 256, nb_mantissa_38, 0, 1, 256, 192, 704, 0 },
    { 38, { 12, 26 }, 114, 384, nb_mantissa_38, 0, 1, 256, 320, 0, 0 },
    { 38, { 12, 26 }, 152, 512, nb_mantissa_38, 0, 1, 256, 448, 0, 0 },
    { 38, { 12, 26 }, 190, 640, nb_mantissa_38, 0, 1, 256, 576, 0, 0 },
    { 44, { 19, 25 }, 228, 768, nb_mantissa_44, 1, 1, 448, 704, 960, 64 },
};

static const DBEGroup grp_tab_3[1] = {
    { 21, { 21 }, 0, 0, nb_mantissa_50, 2, 0, 1152, 0, 1408, 0 },
};

static const DBEGroup grp_tab_4[1] = {
    { 50, { 27, 23 }, 0, 0, nb_mantissa_50, 2, 2, 1152, 0, 1408, 896 },
};

static const DBEGroup grp_tab_5[8] = {
    { 38, { 12, 26 }, 0, 0, nb_mantissa_38, 0, 1, 256, 64, 0, 0 },
    { 38, { 12, 26 }, 38, 128, nb_mantissa_38, 0, 1, 256, 192, 0, 0 },
    { 38, { 12, 26 }, 76, 256, nb_mantissa_38, 0, 1, 256, 320, 0, 0 },
    { 38, { 12, 26 }, 114, 384, nb_mantissa_38, 0, 1, 256, 448, 0, 0 },
    { 38, { 12, 26 }, 152, 512, nb_mantissa_38, 0, 1, 256, 576, 0, 0 },
    { 38, { 12, 26 }, 190, 640, nb_mantissa_38, 0, 1, 256, 704, 3008, 0 },
    { 38, { 12, 26 }, 228, 768, nb_mantissa_38, 0, 1, 256, 832, 2752, 0 },
    { 38, { 12, 26 }, 266, 896, nb_mantissa_38, 0, 2, 192, 960, 2560, 64 },
};

static const DBEGroup grp_tab_6[7] = {
    { 44, { 19, 25 }, 0, 0, nb_mantissa_44, 1, 1, 448, 0, 3264, 0 },
    { 38, { 12, 26 }, 44, 256, nb_mantissa_38, 0, 1, 256, 320, 0, 0 },
    { 38, { 12, 26 }, 82, 384, nb_mantissa_38, 0, 1, 256, 448, 0, 0 },
    { 38, { 12, 26 }, 120, 512, nb_mantissa_38, 0, 1, 256, 576, 0, 0 },
    { 38, { 12, 26 }, 158, 640, nb_mantissa_38, 0, 1, 256, 704, 3008, 0 },
    { 38, { 12, 26 }, 196, 768, nb_mantissa_38, 0, 1, 256, 832, 2752, 0 },
    { 38, { 12, 26 }, 234, 896, nb_mantissa_38, 0, 2, 192, 960, 2560, 64 },
};

static const DBEGroup grp_tab_7[1] = {
    { 21, { 21 }, 0, 0, nb_mantissa_50, 2, 2, 1152, 0, 1408, 896 },
};

static const DBEGroup *const frm_ofs_tab[2][4] = {
    { grp_tab_0, grp_tab_1, grp_tab_2, grp_tab_3 },
    { grp_tab_4, grp_tab_5, grp_tab_6, grp_tab_7 }
};

static const uint8_t mantissa_size1[16][4] = {
    {  0,  0,  0,  0 }, {  2,  1,  1,  1 }, {  3,  2,  1,  1 }, {  4,  3,  2,  1 },
    {  5,  4,  3,  2 }, {  6,  5,  4,  3 }, {  7,  6,  5,  4 }, {  8,  7,  6,  5 },
    {  9,  8,  7,  6 }, { 10,  9,  8,  7 }, { 11, 10,  9,  8 }, { 12, 11, 10,  9 },
    { 13, 12, 11, 10 }, { 14, 13, 12, 11 }, { 15, 14, 13, 12 }, { 16, 15, 14, 13 },
};

static const uint8_t mantissa_size2[16][4] = {
    {  0,  0,  0,  0 }, {  2,  1,  2,  2 }, {  3,  2,  3,  3 }, {  4,  3,  4,  4 },
    {  5,  4,  5,  5 }, {  6,  5,  6,  6 }, {  7,  6,  7,  7 }, {  8,  7,  8,  8 },
    {  9,  8,  9,  9 }, { 10,  9, 10, 10 }, { 11, 10, 11, 11 }, { 12, 11, 12, 12 },
    { 13, 12, 13, 13 }, { 14, 13, 14, 14 }, { 15, 14, 15, 15 }, { 16, 15, 16, 16 },
};

static const float start_window[192] = {
    0.00161569379826, 0.00185748233347, 0.00198562758548, 0.00207834078104,
    0.00215717748523, 0.00223067096393, 0.00230299213147, 0.00237651215396,
    0.00245275561606, 0.00253281402069, 0.00261754673613, 0.00270768786168,
    0.00280390761895, 0.00290684998656, 0.00301715751161, 0.00313548872798,
    0.00326253122934, 0.00339901215995, 0.00354570716636, 0.00370344845023,
    0.00387313232586, 0.00405572653911, 0.00425227750970, 0.00446391759265,
    0.00469187240551, 0.00493746822816, 0.00520213944619, 0.00548743597507,
    0.00579503056737, 0.00612672586953, 0.00648446105606, 0.00687031782873,
    0.00728652552677, 0.00773546505205, 0.00821967127415, 0.00874183354619,
    0.00930479393832, 0.00991154278653, 0.01056521116692, 0.01126905994567,
    0.01202646513050, 0.01284089936559, 0.01371590957417, 0.01465509096066,
    0.01566205783408, 0.01674041199523, 0.01789370972358, 0.01912542867865,
    0.02043893626265, 0.02183746113793, 0.02332406961796, 0.02490164852364,
    0.02657289580178, 0.02834031974193, 0.03020624702903, 0.03217283918354,
    0.03424211623810, 0.03641598586180, 0.03869627565015, 0.04108476601498,
    0.04358322107390, 0.04619341515939, 0.04891715301882, 0.05175628239149,

    0.05471237327267, 0.05778734733755, 0.06098291402413, 0.06430101352084,
    0.06774345212186, 0.07131188644726, 0.07500780649199, 0.07883251748595,
    0.08278712056651, 0.08687249228061, 0.09108926295730, 0.09543779401074,
    0.09991815425851, 0.10453009536427, 0.10927302653894, 0.11414598865987,
    0.11914762799220, 0.12427616972097, 0.12952939152560, 0.13490459744934,
    0.14039859233595, 0.14600765712201, 0.15172752528722, 0.15755336077528,
    0.16347973770491, 0.16950062219342, 0.17560935661442, 0.18179864660619,
    0.18806055113821, 0.19438647593012, 0.20076717050010, 0.20719272909882,
    0.21365259576030, 0.22013557367283, 0.22662983904194, 0.23312295958328,
    0.23960191774666, 0.24605313873388, 0.25246252333253, 0.25881548554631,
    0.26509699495987, 0.27129162373316, 0.27738359807707, 0.28335685401987,
    0.28919509723179, 0.29488186663467, 0.30040060148455, 0.30573471157819,
    0.31086765019993, 0.31578298939317, 0.32046449711227, 0.32489621578468,
    0.32906254179156, 0.33294830535654, 0.33653885031840, 0.33982011325336,
    0.34277870140679, 0.34540196889300, 0.34767809062480, 0.34959613344194,
    0.35114612391958, 0.35231911235422, 0.35310723244504, 0.35350375621308,

    0.35350314372945, 0.35310108725579, 0.35229454943591, 0.35108179521634,
    0.34946241721522, 0.34743735430290, 0.34500890320420, 0.34218072298001,
    0.33895783229541, 0.33534659943168, 0.33135472505060, 0.32699121776996,
    0.32226636266000, 0.31719168282019, 0.31177989424432, 0.30604485422875,
    0.30000150362379, 0.29366580327088, 0.28705466500775, 0.28018587766131,
    0.27307802848095, 0.26575042049535, 0.25822298630189, 0.25051619882000,
    0.24265097955783, 0.23464860495522, 0.22653061137548, 0.21831869932335,
    0.21003463746705, 0.20170016703857, 0.19333690717811, 0.18496626177620,
    0.17660932835062, 0.16828680947474, 0.16001892724986, 0.15182534128597,
    0.14372507062477, 0.13573642000364, 0.12787691082233, 0.12016321713317,
    0.11261110693234, 0.10523538898282, 0.09804986534955, 0.09106728977263,
    0.08429933194438, 0.07775654768810, 0.07144835495683, 0.06538301547324,
    0.05956762170687, 0.05400808871425, 0.04870915012107, 0.04367435714993,
    0.03890607899172, 0.03440550179663, 0.03017262174627, 0.02620622428513,
    0.02250383492507, 0.01906161305732, 0.01587412848221, 0.01293388032354,
    0.01023019677288, 0.00774641320626, 0.00545109736891, 0.00325868651263,
};

static const float short_window2[192] = {
    0.00018861094606, 0.00033433010202, 0.00050309624485, 0.00070306161748,
    0.00093995174533, 0.00121913067128, 0.00154606505568, 0.00192647806126,
    0.00236641248692, 0.00287225985240, 0.00345077377440, 0.00410907465023,
    0.00485464855241, 0.00569534163219, 0.00663935063508, 0.00769520981249,
    0.00887177436246, 0.01017820046395, 0.01162392194150, 0.01321862359335,
    0.01497221122468, 0.01689477844427, 0.01899657030441, 0.02128794388846,
    0.02377932597692, 0.02648116795039, 0.02940389811590, 0.03255787167130,
    0.03595331854986, 0.03960028941437, 0.04350860009563, 0.04768777479454,
    0.05214698838949, 0.05689500821121, 0.06194013566525, 0.06729014809766,
    0.07295224131210, 0.07893297315602, 0.08523820859989, 0.09187306673620,
    0.09884187012422, 0.10614809690222, 0.11379433608064, 0.12178224641797,
    0.13011251926531, 0.13878484574660, 0.14779788861830, 0.15714925912610,
    0.16683549914631, 0.17685206886673, 0.18719334022589, 0.19785259629099,
    0.20882203671372, 0.22009278936030, 0.23165492816694, 0.24349749722585,
    0.25560854105961, 0.26797514099368, 0.28058345748882, 0.29341877824732,
    0.30646557185942, 0.31970754671026, 0.33312771482295, 0.34670846027024,

    0.36043161174692, 0.37427851885723, 0.38823013163645, 0.40226708279486,
    0.41636977214436, 0.43051845264462, 0.44469331748632, 0.45887458761470,
    0.47304259908636, 0.48717788964798, 0.50126128392546, 0.51527397661778,
    0.52919761310050, 0.54301436685998, 0.55670701320069, 0.57025899869448,
    0.58365450587230, 0.59687851269542, 0.60991684638414, 0.62275623122793,
    0.63538433005035, 0.64778977905593, 0.65996221584264, 0.67189230042379,
    0.68357172916486, 0.69499324160511, 0.70615062019861, 0.71703868307548,
    0.72765326998919, 0.73799122168099, 0.74805035295521, 0.75782941981995,
    0.76732808110520, 0.77654685502339, 0.78548707118622, 0.79415081863423,
    0.80254089047207, 0.81066072573188, 0.81851434910893, 0.82610630922734,
    0.83344161609862, 0.84052567843230, 0.84736424144524, 0.85396332579459,
    0.86032916822973, 0.86646816451999, 0.87238681516918, 0.87809167437532,
    0.88358930263537, 0.88888622333073, 0.89398888356256, 0.89890361943564,
    0.90363662591861, 0.90819393133744, 0.91258137648979, 0.91680459830070,
    0.92086901787718, 0.92477983276087, 0.92854201312583, 0.93216030163834,
    0.93563921662343, 0.93898305819384, 0.94219591693690, 0.94528168477979,

    0.94823843319821, 0.95106834367330, 0.95377776558539, 0.95636718335775,
    0.95883679961479, 0.96118650212341, 0.96341583179195, 0.96552395212906,
    0.96750962060547, 0.96937116231768, 0.97110644638309, 0.97271286544154,
    0.97418731862798, 0.97552619834964, 0.97672538116257, 0.97778022299974,
    0.97868555895586, 0.97943570778357, 0.98002448120255, 0.98044519806866,
    0.98069070339493, 0.98075339216123, 0.98062523779637, 0.98029782516478,
    0.97976238784222, 0.97900984942031, 0.97803086854002, 0.97681588731895,
    0.97535518280755, 0.97363892108474, 0.97165721358452, 0.96940017523145,
    0.96685798395452, 0.96402094114589, 0.96087953263194, 0.95742448973047,
    0.95364684997699, 0.94953801711660, 0.94508981997396, 0.94029456983253,
    0.93514511597504, 0.92963489905951, 0.92375800202883, 0.91750919827624,
    0.91088399681406, 0.90387868421832, 0.89649036314692, 0.88871698725397,
    0.88055739234735, 0.87201132366062, 0.86307945913336, 0.85376342861693,
    0.84406582894455, 0.83399023482637, 0.82354120554757, 0.81272428745995,
    0.80154601230457, 0.79001389138101, 0.77813640562199, 0.76592299164227,
    0.75338402384395, 0.74053079267526, 0.72737547915460, 0.71393112578527,
};

static const float short_window3[64] = {
    0.00326887936450, 0.00550242900936, 0.00786846643791, 0.01045683453520,
    0.01330402120132, 0.01643221072863, 0.01985798040609, 0.02359509464766,
    0.02765559221954, 0.03205025893128, 0.03678884369614, 0.04188015679495,
    0.04733210987781, 0.05315172583924, 0.05934513287609, 0.06591755045290,
    0.07287327156378, 0.08021564389822, 0.08794705152307, 0.09606889811179,
    0.10458159240070, 0.11348453632940, 0.12277611617809, 0.13245369691511,
    0.14251361989876, 0.15295120402567, 0.16376075037904, 0.17493555039885,
    0.18646789757072, 0.19834910260891, 0.21056951208995, 0.22311853047787,
    0.23598464546683, 0.24915545655419, 0.26261770674500, 0.27635731727778,
    0.29035942525136, 0.30460842402318, 0.31908800624032, 0.33378120935681,
    0.34867046348260, 0.36373764140285, 0.37896411059909, 0.39433078709788,
    0.40981819096657, 0.42540650327031, 0.44107562429959, 0.45680523287270,
    0.47257484651351, 0.48836388230077, 0.50415171818214, 0.51991775454258,
    0.53564147581496, 0.55130251191887, 0.56688069931047, 0.58235614142007,
    0.59770926827271, 0.61292089506118, 0.62797227945823, 0.64284517745255,
    0.65752189749349, 0.67198535273209, 0.68621911114984, 0.70020744337099,
};

static const uint8_t dc_code_tab[5] = { 0, 0, 0, 1, 1 };

static const uint8_t ht_code_tab[5] = { 0, 0, 1, 2, 2 };

static const uint8_t band_ofs_tab[3][4] = {
    { 12, 8, 4, 0 }, { 14, 10, 6, 0 }, { 12, 8, 4, 0 }
};

static const uint8_t band_low_tab[3] = { 9, 17, 24 };

static const uint16_t fast_gain_tab[8] = {
    128, 256, 384, 512, 640, 768, 896, 1024
};

static const uint16_t slow_decay_tab[2][2] = { { 27, -1 }, { 32, 21 } };

static const uint16_t misc_decay_tab[3][2][2] = {
    { { 354, -1 }, { 425, 425 } },
    { { 266, -1 }, { 320,  -1 } },
    { { 213, -1 }, { 256,  -1 } }
};

static const uint16_t fast_decay_tab[3][2][2][50] = {
    {{{
        142, 142, 142, 142, 142, 142, 142, 142, 142, 142,
        142, 142, 142, 142, 142, 142, 142, 142, 142, 142,
        142, 142, 142, 142, 142, 142, 142, 142, 142, 142,
        142, 142, 142, 142, 142, 142, 142, 142,
    }, {
         -1,  -1,  -1,  -1,  -1,  -1,  -1,  -1,  -1,  -1,
         -1,  -1,  -1,  -1,  -1,  -1,  -1,  -1,  -1,  -1,
         -1,  -1,  -1,  -1,  -1,  -1,  -1,  -1,  -1,  -1,
         -1,  -1,  -1,  -1,  -1,  -1,  -1,  -1,
    }}, {{
        170, 170, 170, 170, 170, 170, 170, 170, 170, 170,
        170, 170, 170, 170, 170, 170, 170, 170, 170, 170,
        170, 170, 170, 170, 170, 170, 170, 170, 170, 170,
        170, 170, 170, 170, 170, 170, 170, 170,
    }, {
         64,  64,  64,  64,  64,  64,  64,  64,  64,  64,
         64,  64,  64,  64,  64,  64,  64,  64,  64,  64,
         64,  64,  64,  64,  64,  64,  64,  64,  64,  64,
         64,  64,  64,  64,  64,  64,  64,  64,
    }}}, {{{
        266, 266, 106, 106, 106, 106, 106, 106, 106, 106,
        106, 106, 106, 106, 106, 106, 106, 106, 106, 106,
        106, 106, 106, 106, 106, 106, 106, 106, 106, 106,
        106, 106, 106, 106, 106, 106, 106, 106, 106, 106,
        106, 106, 106, 106,
    }, {
         -1,  -1,  -1,  -1,  -1,  -1,  -1,  -1,  -1,  -1,
         -1,  -1,  -1,  -1,  -1,  -1,  -1,  -1,  -1,  -1,
         -1,  -1,  -1,  -1,  -1,  -1,  -1,  -1,  -1,  -1,
         -1,  -1,  -1,  -1,  -1,  -1,  -1,  -1,  -1,  -1,
         -1,  -1,  -1,  -1,
    }}, {{
        319, 319, 128, 128, 128, 128, 128, 128, 128, 128,
        128, 128, 128, 128, 128, 128, 128, 128, 128, 128,
        128, 128, 128, 128, 128, 128, 128, 128, 128, 128,
        128, 128, 128, 128, 128, 128, 128, 128, 128, 128,
        128, 128, 128, 128,
    }, {
         -1,  -1,  -1,  -1,  -1,  -1,  -1,  -1,  -1,  -1,
         -1,  -1,  -1,  -1,  -1,  -1,  -1,  -1,  -1,  -1,
         -1,  -1,  -1,  -1,  -1,  -1,  -1,  -1,  -1,  -1,
         -1,  -1,  -1,  -1,  -1,  -1,  -1,  -1,  -1,  -1,
         -1,  -1,  -1,  -1,
    }}}, {{{
        106, 106, 106, 106, 106, 106, 106, 106, 106, 106,
        106, 106, 106, 106, 106, 106, 106, 106, 106, 106,
        106, 106, 106, 106, 106, 106, 106, 106, 106, 106,
        106, 106, 106, 106, 106, 106, 106, 106, 106, 106,
        106, 106, 106, 106, 106, 106, 106, 106, 106, 106,
    }, {
         -1,  -1,  -1,  -1,  -1,  -1,  -1,  -1,  -1,  -1,
         -1,  -1,  -1,  -1,  -1,  -1,  -1,  -1,  -1,  -1,
         -1,  -1,  -1,  -1,  -1,  -1,  -1,  -1,  -1,  -1,
         -1,  -1,  -1,  -1,  -1,  -1,  -1,  -1,  -1,  -1,
         -1,  -1,  -1,  -1,  -1,  -1,  -1,  -1,  -1,  -1,
    }}, {{
        128, 128, 128, 128, 128, 128, 128, 128, 128, 128,
        128, 128, 128, 128, 128, 128, 128, 128, 128, 128,
        128, 128, 128, 128, 128, 128, 128, 128, 128, 128,
        128, 128, 128, 128, 128, 128, 128, 128, 128, 128,
        128, 128, 128, 128, 128, 128, 128, 128, 128, 128,
    }, {
         -1,  -1,  -1,  -1,  -1,  -1,  -1,  -1,  -1,  -1,
         -1,  -1,  -1,  -1,  -1,  -1,  -1,  -1,  -1,  -1,
         -1,  -1,  -1,  -1,  -1,  -1,  -1,  -1,  -1,  -1,
         -1,  -1,  -1,  -1,  -1,  -1,  -1,  -1,  -1,  -1,
         -1,  -1,  -1,  -1,  -1,  -1,  -1,  -1,  -1,  -1,
    }}}
};

static const uint16_t fast_gain_adj_tab[3][2][62] = {
    {{
          0,   0,   0,   0,   0,   0,   0,   0,   0,   0,
          0,   0,   0,   0,   0,   0,   0,   0,   0,   0,
          0,   0,   0,   0,   0,   0,   0,   0,   0,   0,
          0,   1,   2,   4,   7,  11,  16,  29,  44,  59,
         76,  94, 116, 142, 179, 221, 252, 285, 312, 334,
    }, {
          0,   0,   0,   0,   0,   0,   0,   0,   0,   0,
          0,   0,   0,   0,   0,   0,   0,   0,   0,   0,
          0,   0,   0,   0,   0,   0,   0,   0,   0,   0,
          2,   5,   8,  10,  15,  28,  42,  57,  75,  93,
        115, 140, 177, 219, 247, 280, 308, 330, 427, 533,
    }}, {{
          0,   0,   0,   0,   0,   0,   0,   0,   0,   0,
          0,   0,   0,   0,   0,   0,   0,   0,   0,   0,
          0,   0,   0,   0,   0,   0,   0,   0,   0,   0,
          0,   0,   0,   0,   0,   0,   0,   0,   0,   0,
          0,   2,   5,   8,  12,  21,  35,  51,  69,  89,
        111, 138, 176, 220, 251, 284, 312, 334,
    }, {
          0,   0,   0,   0,   0,   0,   0,   0,   0,   0,
          0,   0,   0,   0,   0,   0,   0,   0,   0,   0,
          0,   0,   0,   0,   0,   0,   0,   0,   0,   0,
          0,   0,   0,   0,   0,   0,   0,   0,   0,   2,
          5,   8,  11,  18,  33,  49,  65,  84, 106, 132,
        168, 214, 245, 279, 308, 329, 427, 533,
    }}, {{
          0,   0,   0,   0,   0,   0,   0,   0,   0,   0,
          0,   0,   0,   0,   0,   0,   0,   0,   0,   0,
          0,   0,   0,   0,   0,   0,   0,   0,   0,   0,
          0,   0,   0,   0,   0,   0,   0,   0,   0,   0,
          0,   0,   0,   0,   0,   1,   4,   7,  10,  17,
         31,  47,  65,  84, 107, 134, 171, 215, 250, 283,
        312, 334,
    }, {
          0,   0,   0,   0,   0,   0,   0,   0,   0,   0,
          0,   0,   0,   0,   0,   0,   0,   0,   0,   0,
          0,   0,   0,   0,   0,   0,   0,   0,   0,   0,
          0,   0,   0,   0,   0,   0,   0,   0,   0,   0,
          0,   0,   0,   0,   3,   6,   9,  13,  27,  43,
         60,  79, 100, 126, 160, 207, 242, 276, 307, 329,
        427, 533,
    }}
};

static const uint16_t slow_gain_tab[3][2][50] = {
    {{
        3072, 3072, 3072, 3072, 3072, 3072, 1063, 1063, 1063, 1063,
        1063, 1063, 1063, 1063, 1063, 1063, 1063, 1063, 1063, 1063,
        1063, 1063, 1063, 1063, 1063, 1063, 1063, 1063, 1063, 1063,
        1063, 1063, 1063, 1063, 1063, 1063, 1063, 1063,
    }, {
        3072, 3072, 3072, 3072, 3072, 3072,  850,  850,  850,  850,
         850,  850,  850,  850,  850,  850,  850,  850,  850,  850,
         850,  850,  850,  850,  850,  850,  850,  850,  850,  850,
         850,  850,  850,  850,  850,  850,  850,  850,
    }}, {{
        3072, 1212, 1212, 1212,  999,  999,  999,  999,  999,  999,
         999,  999,  999,  999,  999,  999,  999,  999,  999,  999,
         999,  999,  999,  999,  999,  999,  999,  999,  999,  999,
         999,  999,  999,  999,  999,  999,  999,  999,  999,  999,
         999,  999,  999,  999,
    }, {
          -1,   -1,   -1,   -1,   -1,   -1,   -1,   -1,   -1,   -1,
          -1,   -1,   -1,   -1,   -1,   -1,   -1,   -1,   -1,   -1,
          -1,   -1,   -1,   -1,   -1,   -1,   -1,   -1,   -1,   -1,
          -1,   -1,   -1,   -1,   -1,   -1,   -1,   -1,   -1,   -1,
          -1,   -1,   -1,   -1,
    }}, {{
        3072, 3072, 3072, 3072, 3072, 3072, 3072, 3072, 3072, 3072,
         999,  999,  999,  999,  999,  999,  999,  999,  999,  999,
         999,  999,  999,  999,  999,  999,  999,  999,  999,  999,
         999,  999,  999,  999,  999,  999,  999,  999,  999,  999,
         999,  999,  999,  999,  999,  999,  999,  999,  999,  999,
    }, {
          -1,   -1,   -1,   -1,   -1,   -1,   -1,   -1,   -1,   -1,
          -1,   -1,   -1,   -1,   -1,   -1,   -1,   -1,   -1,   -1,
          -1,   -1,   -1,   -1,   -1,   -1,   -1,   -1,   -1,   -1,
          -1,   -1,   -1,   -1,   -1,   -1,   -1,   -1,   -1,   -1,
          -1,   -1,   -1,   -1,   -1,   -1,   -1,   -1,   -1,   -1,
    }}
};

static const uint16_t hearing_thresh_tab[3][3][50] = {
    {{
        1403, 1141, 1000,  959,  948,  957,  946,  925,  899,  871,
         843,  815,  789,  766,  745,  727,  705,  687,  681,  686,
         701,  725,  768,  854,  940, 1018, 1075, 1103, 1111, 1106,
        1098, 1105, 1142, 1237, 1419, 1721, 2169, 2805,
    }, {
        1401, 1130,  995,  957,  947,  955,  941,  918,  890,  861,
         831,  803,  777,  754,  734,  717,  698,  684,  682,  692,
         712,  743,  798,  894,  976, 1045, 1091, 1109, 1110, 1102,
        1098, 1116, 1174, 1300, 1526, 1884, 2401, 3072,
    }, {
        1393, 1086,  974,  949,  957,  941,  913,  878,  843,  808,
         777,  750,  727,  708,  695,  686,  681,  689,  714,  752,
         811,  888,  971, 1044, 1087, 1108, 1110, 1102, 1098, 1115,
        1172, 1290, 1489, 1812, 2293, 2964, 3072, 3072,
    }}, {{
        1412, 1343, 1141, 1047, 1000,  974,  959,  951,  948,  947,
         957,  953,  946,  936,  925,  906,  878,  850,  822,  795,
         771,  745,  719,  700,  687,  681,  685,  701,  733,  784,
         885,  977, 1047, 1092, 1110, 1108, 1099, 1102, 1138, 1233,
        1413, 1711, 2157, 2797,
    }, {
        1412, 1336, 1130, 1040,  995,  970,  957,  950,  947,  947,
         955,  950,  941,  930,  918,  897,  868,  838,  810,  783,
         759,  734,  710,  693,  684,  681,  690,  712,  752,  823,
         924, 1009, 1069, 1102, 1111, 1104, 1098, 1111, 1168, 1295,
        1518, 1873, 2388, 3072,
    }, {
        1411, 1293, 1086, 1009,  974,  957,  949,  947,  957,  951,
         941,  928,  913,  896,  878,  852,  817,  785,  756,  732,
         713,  695,  683,  682,  689,  710,  746,  811,  906,  992,
        1061, 1099, 1111, 1106, 1098, 1107, 1155, 1266, 1471, 1799,
        2277, 2945, 3072, 3072,
    }}, {{
        1431, 1412, 1403, 1379, 1343, 1293, 1229, 1180, 1125, 1075,
        1040, 1014,  996,  979,  965,  957,  951,  948,  947,  957,
         951,  940,  924,  903,  877,  846,  815,  785,  753,  725,
         702,  686,  681,  689,  714,  760,  847,  947, 1028, 1083,
        1108, 1109, 1101, 1100, 1132, 1222, 1402, 1705, 2160, 2803,
    }, {
        1431, 1412, 1401, 1375, 1336, 1278, 1215, 1168, 1115, 1066,
        1032, 1008,  991,  975,  962,  954,  950,  947,  947,  955,
         948,  935,  916,  894,  866,  835,  803,  772,  742,  715,
         695,  683,  683,  697,  729,  784,  887,  982, 1054, 1096,
        1111, 1106, 1098, 1107, 1159, 1281, 1505, 1865, 2391, 3072,
    }, {
        1427, 1411, 1393, 1353, 1293, 1215, 1160, 1118, 1072, 1031,
        1003,  984,  971,  960,  952,  948,  947,  957,  952,  941,
         924,  902,  876,  847,  815,  781,  750,  723,  700,  685,
         681,  691,  719,  766,  858,  958, 1039, 1089, 1109, 1108,
        1099, 1102, 1141, 1245, 1442, 1766, 2250, 2930, 3072, 3072,
    }}
};

static const int16_t lwc_gain_tab[11][7] = {
    {   -21,  -197,  -271,  -466, 32767, 32767, 32767 },
    {  -197,   -29,  -244,  -271,  -540, 32767, 32767 },
    {  -271,  -244,   -29,  -249,  -271,  -593, 32767 },
    {  -466,  -271,  -249,   -29,  -251,  -271,  -632 },
    {  -540,  -271,  -251,   -29,  -251,  -271,  -664 },
    {  -593,  -271,  -251,   -29,  -252,  -271,  -690 },
    {  -632,  -271,  -252,   -29,  -252,  -271,  -711 },
    {  -664,  -271,  -252,   -29,  -252,  -271,  -730 },
    {  -690,  -271,  -252,   -29,  -252,  -271,  -745 },
    {  -711,  -271,  -252,   -29,  -253,  -271,  -759 },
    {  -730,  -271,  -253,   -29,  -253,  -271,  -771 },
};

static const int16_t lwc_adj_tab[7] = {
    -192, -320, -448, -512, -448, -320, -192,
};

static const uint8_t log_add_tab[212] = {
    64, 63, 62, 61, 60, 59, 58, 57, 56, 55, 54, 53, 52, 52, 51, 50,
    49, 48, 47, 47, 46, 45, 44, 44, 43, 42, 41, 41, 40, 39, 38, 38,
    37, 36, 36, 35, 35, 34, 33, 33, 32, 32, 31, 30, 30, 29, 29, 28,
    28, 27, 27, 26, 26, 25, 25, 24, 24, 23, 23, 22, 22, 21, 21, 21,
    20, 20, 19, 19, 19, 18, 18, 18, 17, 17, 17, 16, 16, 16, 15, 15,
    15, 14, 14, 14, 13, 13, 13, 13, 12, 12, 12, 12, 11, 11, 11, 11,
    10, 10, 10, 10, 10,  9,  9,  9,  9,  9,  8,  8,  8,  8,  8,  8,
     7,  7,  7,  7,  7,  7,  6,  6,  6,  6,  6,  6,  6,  6,  5,  5,
     5,  5,  5,  5,  5,  5,  4,  4,  4,  4,  4,  4,  4,  4,  4,  4,
     4,  3,  3,  3,  3,  3,  3,  3,  3,  3,  3,  3,  3,  3,  3,  2,
     2,  2,  2,  2,  2,  2,  2,  2,  2,  2,  2,  2,  2,  2,  2,  2,
     2,  2,  1,  1,  1,  1,  1,  1,  1,  1,  1,  1,  1,  1,  1,  1,
     1,  1,  1,  1,  1,  1,  1,  1,  1,  1,  1,  1,  1,  1,  1,  1,
     1,  1,  0,  0,
};

static const uint8_t bap_tab[64] = {
     0,  1,  1,  1,  1,  1,  2,  2,  2,  2,  2,  3,  3,  3,  3,  4,
     4,  4,  4,  5,  5,  5,  5,  6,  6,  6,  6,  7,  7,  7,  7,  8,
     8,  8,  8,  9,  9,  9,  9, 10, 10, 10, 10, 11, 11, 11, 11, 12,
    12, 12, 12, 13, 13, 13, 13, 14, 14, 14, 14, 15, 15, 15, 15, 15,
};

static float mantissa_tab1[17][4];
static float mantissa_tab2[17][4];
static float mantissa_tab3[17][4];
static float exponent_tab[50];
static float gain_tab[1024];

DECLARE_ALIGNED(32, static float, window)[3712];

#endif