/*** 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: ps_dec.h,v 1.13 2009/01/26 22:32:31 menno Exp $**/ #ifndef __PS_DEC_H__#define __PS_DEC_H__ #ifdef __cplusplusextern "C" {#endif #include "bits.h" #define EXTENSION_ID_PS 2 #define MAX_PS_ENVELOPES 5#define NO_ALLPASS_LINKS 3 typedef struct{    /* bitstream parameters */    uint8_t enable_iid;    uint8_t enable_icc;    uint8_t enable_ext;     uint8_t iid_mode;    uint8_t icc_mode;    uint8_t nr_iid_par;    uint8_t nr_ipdopd_par;    uint8_t nr_icc_par;     uint8_t frame_class;    uint8_t num_env;     uint8_t border_position[MAX_PS_ENVELOPES+1];     uint8_t iid_dt[MAX_PS_ENVELOPES];    uint8_t icc_dt[MAX_PS_ENVELOPES];     uint8_t enable_ipdopd;    uint8_t ipd_mode;    uint8_t ipd_dt[MAX_PS_ENVELOPES];    uint8_t opd_dt[MAX_PS_ENVELOPES];     /* indices */    int8_t iid_index_prev[34];    int8_t icc_index_prev[34];    int8_t ipd_index_prev[17];    int8_t opd_index_prev[17];    int8_t iid_index[MAX_PS_ENVELOPES][34];    int8_t icc_index[MAX_PS_ENVELOPES][34];    int8_t ipd_index[MAX_PS_ENVELOPES][17];    int8_t opd_index[MAX_PS_ENVELOPES][17];     int8_t ipd_index_1[17];    int8_t opd_index_1[17];    int8_t ipd_index_2[17];    int8_t opd_index_2[17];     /* ps data was correctly read */    uint8_t ps_data_available;     /* a header has been read */    uint8_t header_read;     /**/    uint8_t num_groups;    uint8_t num_hybrid_groups;    uint8_t nr_par_bands;    uint8_t nr_allpass_bands;    uint8_t decay_cutoff;     /* filter delay handling */    uint8_t saved_delay;    uint8_t delay_buf_index_ser[NO_ALLPASS_LINKS];    uint8_t num_sample_delay_ser[NO_ALLPASS_LINKS];    uint8_t delay_D[64];    uint8_t delay_buf_index_delay[64];     /* mixing and phase */    uint8_t phase_hist;     /* hybrid filterbank parameters */    uint8_t use34hybrid_bands;    uint8_t numTimeSlotsRate;     uint8_t *group_border;    uint16_t *map_group2bk;     complex_t delay_Qmf[14][64]; /* 14 samples delay max, 64 QMF channels */    complex_t delay_SubQmf[2][32]; /* 2 samples delay max (SubQmf is always allpass filtered) */    complex_t delay_Qmf_ser[NO_ALLPASS_LINKS][5][64]; /* 5 samples delay max (table 8.34), 64 QMF channels */    complex_t delay_SubQmf_ser[NO_ALLPASS_LINKS][5][32]; /* 5 samples delay max (table 8.34) */     /* transients */    real_t alpha_decay;    real_t alpha_smooth;     real_t P_PeakDecayNrg[34];    real_t P_prev[34];    real_t P_SmoothPeakDecayDiffNrg_prev[34];     /* mixing and phase */    complex_t h11_prev[50];    complex_t h12_prev[50];    complex_t h21_prev[50];    complex_t h22_prev[50];    complex_t ipd_prev[20][2];    complex_t opd_prev[20][2];     /* hybrid filterbank parameters */    void *hyb;} ps_info; /* ps_syntax.c */uint16_t ps_data(ps_info *ps, bitfile *ld, uint8_t *header); /* ps_dec.c */ps_info *ps_init(uint8_t sr_index, uint8_t numTimeSlotsRate);void ps_free(ps_info *ps); uint8_t ps_decode(ps_info *ps, qmf_t X_left[38][64], qmf_t X_right[38][64]);  #ifdef __cplusplus}#endif#endif