/*** 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: structs.h,v 1.49 2009/01/26 23:51:15 menno Exp $**/ #ifndef __STRUCTS_H__#define __STRUCTS_H__ #ifdef __cplusplusextern "C" {#endif #include "cfft.h"#ifdef SBR_DEC#include "sbr_dec.h"#endif #define MAX_CHANNELS        64#define MAX_SYNTAX_ELEMENTS 48#define MAX_WINDOW_GROUPS    8#define MAX_SFB             51#define MAX_LTP_SFB         40#define MAX_LTP_SFB_S        8 /* used to save the prediction state */typedef struct {    int16_t r[2];    int16_t COR[2];    int16_t VAR[2];} pred_state; typedef struct {    uint16_t N;    cfft_info *cfft;    complex_t *sincos;#ifdef PROFILE    int64_t cycles;    int64_t fft_cycles;#endif} mdct_info; typedef struct{    const real_t *long_window[2];    const real_t *short_window[2];#ifdef LD_DEC    const real_t *ld_window[2];#endif     mdct_info *mdct256;#ifdef LD_DEC    mdct_info *mdct1024;#endif    mdct_info *mdct2048;#ifdef PROFILE    int64_t cycles;#endif} fb_info; typedef struct{    uint8_t present;     uint8_t num_bands;    uint8_t pce_instance_tag;    uint8_t excluded_chns_present;    uint8_t band_top[17];    uint8_t prog_ref_level;    uint8_t dyn_rng_sgn[17];    uint8_t dyn_rng_ctl[17];    uint8_t exclude_mask[MAX_CHANNELS];    uint8_t additional_excluded_chns[MAX_CHANNELS];     real_t ctrl1;    real_t ctrl2;} drc_info; typedef struct{    uint8_t element_instance_tag;    uint8_t object_type;    uint8_t sf_index;    uint8_t num_front_channel_elements;    uint8_t num_side_channel_elements;    uint8_t num_back_channel_elements;    uint8_t num_lfe_channel_elements;    uint8_t num_assoc_data_elements;    uint8_t num_valid_cc_elements;    uint8_t mono_mixdown_present;    uint8_t mono_mixdown_element_number;    uint8_t stereo_mixdown_present;    uint8_t stereo_mixdown_element_number;    uint8_t matrix_mixdown_idx_present;    uint8_t pseudo_surround_enable;    uint8_t matrix_mixdown_idx;    uint8_t front_element_is_cpe[16];    uint8_t front_element_tag_select[16];    uint8_t side_element_is_cpe[16];    uint8_t side_element_tag_select[16];    uint8_t back_element_is_cpe[16];    uint8_t back_element_tag_select[16];    uint8_t lfe_element_tag_select[16];    uint8_t assoc_data_element_tag_select[16];    uint8_t cc_element_is_ind_sw[16];    uint8_t valid_cc_element_tag_select[16];     uint8_t channels;     uint8_t comment_field_bytes;    uint8_t comment_field_data[257];     /* extra added values */    uint8_t num_front_channels;    uint8_t num_side_channels;    uint8_t num_back_channels;    uint8_t num_lfe_channels;    uint8_t sce_channel[16];    uint8_t cpe_channel[16];} program_config; typedef struct{    uint16_t syncword;    uint8_t id;    uint8_t layer;    uint8_t protection_absent;    uint8_t profile;    uint8_t sf_index;    uint8_t private_bit;    uint8_t channel_configuration;    uint8_t original;    uint8_t home;    uint8_t emphasis;    uint8_t copyright_identification_bit;    uint8_t copyright_identification_start;    uint16_t aac_frame_length;    uint16_t adts_buffer_fullness;    uint16_t crc_check;    uint8_t no_raw_data_blocks_in_frame;     /* control param */    uint8_t old_format;} adts_header; typedef struct{    uint8_t copyright_id_present;    int8_t copyright_id[10];    uint8_t original_copy;    uint32_t bitrate;    uint32_t adif_buffer_fullness;    uint8_t num_program_config_elements;    uint8_t home;    uint8_t bitstream_type;     /* maximum of 16 PCEs */    program_config pce[16];} adif_header; #ifdef LTP_DECtypedef struct{    uint8_t last_band;    uint8_t data_present;    uint16_t lag;    uint8_t lag_update;    uint8_t coef;    uint8_t long_used[MAX_SFB];    uint8_t short_used[8];    uint8_t short_lag_present[8];    uint8_t short_lag[8];} ltp_info;#endif #ifdef MAIN_DECtypedef struct{    uint8_t limit;    uint8_t predictor_reset;    uint8_t predictor_reset_group_number;    uint8_t prediction_used[MAX_SFB];} pred_info;#endif typedef struct{    uint8_t number_pulse;    uint8_t pulse_start_sfb;    uint8_t pulse_offset[4];    uint8_t pulse_amp[4];} pulse_info; typedef struct{    uint8_t n_filt[8];    uint8_t coef_res[8];    uint8_t length[8][4];    uint8_t order[8][4];    uint8_t direction[8][4];    uint8_t coef_compress[8][4];    uint8_t coef[8][4][32];} tns_info; #ifdef SSR_DECtypedef struct{    uint8_t max_band;     uint8_t adjust_num[4][8];    uint8_t alevcode[4][8][8];    uint8_t aloccode[4][8][8];} ssr_info;#endif typedef struct{    uint8_t max_sfb;    uint8_t global_gain;     uint8_t num_swb;    uint8_t num_window_groups;    uint8_t num_windows;    uint8_t window_sequence;    uint8_t window_group_length[8];    uint8_t window_shape;    uint8_t scale_factor_grouping;    uint16_t sect_sfb_offset[8][15*8];    uint16_t swb_offset[52];    uint16_t swb_offset_max;     uint8_t sect_cb[8][15*8];    uint16_t sect_start[8][15*8];    uint16_t sect_end[8][15*8];    uint8_t sfb_cb[8][8*15];    uint8_t num_sec[8]; /* number of sections in a group */     int16_t scale_factors[8][51]; /* [0..255], except for noise and intensity */     uint8_t ms_mask_present;    uint8_t ms_used[MAX_WINDOW_GROUPS][MAX_SFB];     uint8_t noise_used;    uint8_t is_used;     uint8_t pulse_data_present;    uint8_t tns_data_present;    uint8_t gain_control_data_present;    uint8_t predictor_data_present;     pulse_info pul;    tns_info tns;#ifdef MAIN_DEC    pred_info pred;#endif#ifdef LTP_DEC    ltp_info ltp;    ltp_info ltp2;#endif#ifdef SSR_DEC    ssr_info ssr;#endif #ifdef ERROR_RESILIENCE    /* ER HCR data */    uint16_t length_of_reordered_spectral_data;    uint8_t length_of_longest_codeword;    /* ER RLVC data */    uint8_t sf_concealment;    uint16_t length_of_rvlc_sf;    uint16_t dpcm_noise_nrg;    uint8_t sf_escapes_present;    uint8_t length_of_rvlc_escapes;    uint16_t dpcm_noise_last_position;    uint8_t rev_global_gain;#endif} ic_stream; /* individual channel stream */ typedef struct{    uint8_t channel;    int16_t paired_channel;     uint8_t element_instance_tag;    uint8_t common_window;     ic_stream ics1;    ic_stream ics2;} element; /* syntax element (SCE, CPE, LFE) */ #define MAX_ASC_BYTES 64typedef struct {    int inited;    int version, versionA;    int framelen_type;    int useSameStreamMux;    int allStreamsSameTimeFraming;    int numSubFrames;    int numPrograms;    int numLayers;    int otherDataPresent;    uint32_t otherDataLenBits;    uint32_t frameLength;    uint8_t ASC[MAX_ASC_BYTES];    uint32_t ASCbits;} latm_header; typedef struct{    uint8_t adts_header_present;    uint8_t adif_header_present;    uint8_t latm_header_present;    uint8_t sf_index;    uint8_t object_type;    uint8_t channelConfiguration;    uint8_t postSeekResetFlag;#ifdef ERROR_RESILIENCE    uint8_t aacSectionDataResilienceFlag;    uint8_t aacScalefactorDataResilienceFlag;    uint8_t aacSpectralDataResilienceFlag;#endif    uint16_t frameLength;     uint32_t frame;     uint32_t sample_buffer_size;     uint8_t downMatrix;    uint8_t upMatrix;    uint8_t first_syn_ele;    uint8_t has_lfe;    /* number of channels in current frame */    uint8_t fr_channels;    /* number of elements in current frame */    uint8_t fr_ch_ele;     /* element_output_channels:       determines the number of channels the element will output    */    uint8_t element_output_channels[MAX_SYNTAX_ELEMENTS];    /* element_alloced:       determines whether the data needed for the element is allocated or not    */    uint8_t element_alloced[MAX_SYNTAX_ELEMENTS];    /* sample_buffer_size:       (internal) output dara buffer size    */ 	latm_header latm_config;     /* output data buffer */    void *sample_buffer;     uint8_t window_shape_prev[MAX_CHANNELS];#ifdef LTP_DEC    uint16_t ltp_lag[MAX_CHANNELS];#endif    fb_info *fb;    drc_info *drc;     real_t *time_out[MAX_CHANNELS];    real_t *fb_intermed[MAX_CHANNELS]; #ifdef SBR_DEC    sbr_info *sbr[MAX_SYNTAX_ELEMENTS];#endif #ifdef SSR_DEC    real_t *ssr_overlap[MAX_CHANNELS];    real_t *prev_fmd[MAX_CHANNELS];    real_t ipqf_buffer[MAX_CHANNELS][4][96/4];#endif #ifdef MAIN_DEC    pred_state *pred_stat[MAX_CHANNELS];#endif#ifdef LTP_DEC    int16_t *lt_pred_stat[MAX_CHANNELS];#endif     /* RNG states */    uint32_t __r1;    uint32_t __r2; #ifdef SBR_DEC    int8_t sbr_present_flag;    int8_t forceUpSampling;    int8_t downSampledSBR;    /* determines whether SBR data is allocated for the gives element */    uint8_t sbr_alloced[MAX_SYNTAX_ELEMENTS];#endif #if (defined(PS_DEC) || defined(DRM_PS))    uint8_t ps_used[MAX_SYNTAX_ELEMENTS];    uint8_t ps_used_global;#endif     /* Program Config Element */    uint8_t pce_set;    program_config pce;    uint8_t element_id[MAX_CHANNELS];    uint8_t internal_channel[MAX_CHANNELS];     /* Configuration data */    NeAACDecConfiguration config; #ifdef PROFILE    int64_t cycles;    int64_t spectral_cycles;    int64_t output_cycles;    int64_t scalefac_cycles;    int64_t requant_cycles;#endif	const unsigned char *cmes;} NeAACDecStruct;   #ifdef __cplusplus}#endif#endif