/*** FAAD2 - Freeware Advanced Audio (AAC) Decoder including SBR decoding** Copyright (C) 2003-2005 M. Bakker, Nero AG, http://www.nero.com**** This program is free software; you can redistribute it and/or modify** it under the terms of the GNU General Public License as published by** the Free Software Foundation; either version 2 of the License, or** (at your option) any later version.**** This program 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 General Public License for more details.**** You should have received a copy of the GNU General Public License** along with this program; if not, write to the Free Software** Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.**** Any non-GPL usage of this software or parts of this software is strictly** forbidden.**** The "appropriate copyright message" mentioned in section 2c of the GPLv2** must read: "Code from FAAD2 is copyright (c) Nero AG, www.nero.com"**** Commercial non-GPL licensing of this software is possible.** For more info contact Nero AG through Mpeg4AAClicense@nero.com.**** $Id: sbr_dec.h,v 1.39 2007/11/01 12:33:34 menno Exp $**/ #ifndef __SBR_DEC_H__#define __SBR_DEC_H__ #ifdef __cplusplusextern "C" {#endif #ifdef PS_DEC#include "ps_dec.h"#endif#ifdef DRM_PS#include "drm_dec.h"#endif /* MAX_NTSRHFG: maximum of number_time_slots * rate + HFGen. 16*2+8 */#define MAX_NTSRHFG 40#define MAX_NTSR    32 /* max number_time_slots * rate, ok for DRM and not DRM mode */ /* MAX_M: maximum value for M */#define MAX_M       49/* MAX_L_E: maximum value for L_E */#define MAX_L_E      5 typedef struct {    real_t *x;    int16_t x_index;    uint8_t channels;} qmfa_info; typedef struct {    real_t *v;    int16_t v_index;    uint8_t channels;} qmfs_info; typedef struct{    uint32_t sample_rate;    uint32_t maxAACLine;     uint8_t rate;    uint8_t just_seeked;    uint8_t ret;     uint8_t amp_res[2];     uint8_t k0;    uint8_t kx;    uint8_t M;    uint8_t N_master;    uint8_t N_high;    uint8_t N_low;    uint8_t N_Q;    uint8_t N_L[4];    uint8_t n[2];     uint8_t f_master[64];    uint8_t f_table_res[2][64];    uint8_t f_table_noise[64];    uint8_t f_table_lim[4][64];#ifdef SBR_LOW_POWER    uint8_t f_group[5][64];    uint8_t N_G[5];#endif     uint8_t table_map_k_to_g[64];     uint8_t abs_bord_lead[2];    uint8_t abs_bord_trail[2];    uint8_t n_rel_lead[2];    uint8_t n_rel_trail[2];     uint8_t L_E[2];    uint8_t L_E_prev[2];    uint8_t L_Q[2];     uint8_t t_E[2][MAX_L_E+1];    uint8_t t_Q[2][3];    uint8_t f[2][MAX_L_E+1];    uint8_t f_prev[2];     real_t *G_temp_prev[2][5];    real_t *Q_temp_prev[2][5];     int16_t E[2][64][MAX_L_E];    int16_t E_prev[2][64];#ifndef FIXED_POINT    real_t E_orig[2][64][MAX_L_E];#endif    real_t E_curr[2][64][MAX_L_E];    int32_t Q[2][64][2];#ifndef FIXED_POINT    real_t Q_div[2][64][2];    real_t Q_div2[2][64][2];#endif    int32_t Q_prev[2][64];     int8_t l_A[2];    int8_t l_A_prev[2];     uint8_t bs_invf_mode[2][MAX_L_E];    uint8_t bs_invf_mode_prev[2][MAX_L_E];    real_t bwArray[2][64];    real_t bwArray_prev[2][64];     uint8_t noPatches;    uint8_t patchNoSubbands[64];    uint8_t patchStartSubband[64];     uint8_t bs_add_harmonic[2][64];    uint8_t bs_add_harmonic_prev[2][64];     int8_t GQ_ringbuf_index[2];     uint16_t index_noise_prev[2];    uint8_t psi_is_prev[2];     uint8_t bs_start_freq_prev;    uint8_t bs_stop_freq_prev;    uint8_t bs_xover_band_prev;    uint8_t bs_freq_scale_prev;    uint8_t bs_alter_scale_prev;    uint8_t bs_noise_bands_prev;     int8_t prevEnvIsShort[2];     int8_t kx_prev;    uint8_t bsco;    uint8_t bsco_prev;    uint8_t M_prev;    uint16_t frame_len;     uint32_t frame;    uint32_t header_count;     qmfa_info *qmfa[2];    qmfs_info *qmfs[2];     qmf_t Xsbr[2][MAX_NTSRHFG][64]; #if defined(DRM) && defined(DRM_PS)    drm_ps_info *drm_ps;#endif #ifdef PS_DEC    ps_info *ps;#endif     uint8_t numTimeSlotsRate;    uint8_t numTimeSlots;    uint8_t tHFGen;    uint8_t tHFAdj; #if (defined(PS_DEC) || defined(DRM_PS))    uint8_t ps_used;    uint8_t psResetFlag;#endif     /* to get it compiling */    /* we'll see during the coding of all the tools, whether       these are all used or not.    */    uint8_t bs_header_flag;    uint8_t bs_crc_flag;    uint16_t bs_sbr_crc_bits;    uint8_t bs_protocol_version;    uint8_t bs_amp_res;    uint8_t bs_start_freq;    uint8_t bs_stop_freq;    uint8_t bs_xover_band;    uint8_t bs_freq_scale;    uint8_t bs_alter_scale;    uint8_t bs_noise_bands;    uint8_t bs_limiter_bands;    uint8_t bs_limiter_gains;    uint8_t bs_interpol_freq;    uint8_t bs_smoothing_mode;    uint8_t bs_samplerate_mode;    uint8_t bs_add_harmonic_flag[2];    uint8_t bs_add_harmonic_flag_prev[2];    uint8_t bs_extended_data;    uint8_t bs_extension_id;    uint8_t bs_extension_data;    uint8_t bs_coupling;    uint8_t bs_frame_class[2];    uint8_t bs_rel_bord[2][9];    uint8_t bs_rel_bord_0[2][9];    uint8_t bs_rel_bord_1[2][9];    uint8_t bs_pointer[2];    uint8_t bs_abs_bord_0[2];    uint8_t bs_abs_bord_1[2];    uint8_t bs_num_rel_0[2];    uint8_t bs_num_rel_1[2];    uint8_t bs_df_env[2][9];    uint8_t bs_df_noise[2][3];     uint8_t Reset;    uint8_t id_aac; #ifdef DRM    uint8_t Is_DRM_SBR;#endif} sbr_info; sbr_info *sbrDecodeInit(uint16_t framelength, uint8_t id_aac,                        uint32_t sample_rate, uint8_t downSampledSBR#ifdef DRM                        , uint8_t IsDRM#endif                        );void sbrDecodeEnd(sbr_info *sbr);void sbrReset(sbr_info *sbr); uint8_t sbrDecodeCoupleFrame(sbr_info *sbr, real_t *left_chan, real_t *right_chan,                             const uint8_t just_seeked, const uint8_t downSampledSBR);uint8_t sbrDecodeSingleFrame(sbr_info *sbr, real_t *channel,                             const uint8_t just_seeked, const uint8_t downSampledSBR);#if (defined(PS_DEC) || defined(DRM_PS))uint8_t sbrDecodeSingleFramePS(sbr_info *sbr, real_t *left_channel, real_t *right_channel,                               const uint8_t just_seeked, const uint8_t downSampledSBR);#endif  #ifdef __cplusplus}#endif#endif