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/*
** FAAD - Freeware Advanced Audio Decoder
** Copyright (C) 2002 M. Bakker
**
** 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.
**
** $Id: decoder.h,v 1.1 2002/07/14 23:43:01 miguelfreitas Exp $
**/
#ifndef __DECODER_H__
#define __DECODER_H__
#ifdef __cplusplus
extern "C" {
#endif
#ifdef _WIN32
#pragma pack(push, 8)
#ifndef FAADAPI
#define FAADAPI __cdecl
#endif
#else
#ifndef FAADAPI
#define FAADAPI
#endif
#endif
#include "bits.h"
#include "syntax.h"
#include "specrec.h"
#include "filtbank.h"
#include "ic_predict.h"
#define FAAD_FMT_16BIT 1
#define FAAD_FMT_24BIT 2
#define FAAD_FMT_32BIT 3
#define FAAD_FMT_FLOAT 4
typedef struct faacDecConfiguration
{
uint8_t defObjectType;
uint32_t defSampleRate;
uint8_t outputFormat;
} faacDecConfiguration, *faacDecConfigurationPtr;
typedef struct faacDecFrameInfo
{
uint32_t bytesconsumed;
uint32_t samples;
uint8_t channels;
uint8_t error;
} faacDecFrameInfo;
typedef struct
{
uint8_t adts_header_present;
uint8_t adif_header_present;
uint8_t sf_index;
uint8_t object_type;
uint8_t channelConfiguration;
uint8_t aacSectionDataResilienceFlag;
uint8_t aacScalefactorDataResilienceFlag;
uint8_t aacSpectralDataResilienceFlag;
uint16_t frameLength;
uint32_t frame;
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_state[MAX_CHANNELS];
real_t *time_out[MAX_CHANNELS];
#ifdef MAIN_DEC
pred_state *pred_stat[MAX_CHANNELS];
#endif
#ifdef LTP_DEC
real_t *lt_pred_stat[MAX_CHANNELS];
#endif
real_t exp_table[256];
real_t mnt_table[128];
real_t iq_table[IQ_TABLE_SIZE];
#if POW_TABLE_SIZE
real_t pow2_table[POW_TABLE_SIZE];
#endif
/* Configuration data */
faacDecConfiguration config;
} faacDecStruct, *faacDecHandle;
uint8_t* FAADAPI faacDecGetErrorMessage(uint8_t errcode);
faacDecHandle FAADAPI faacDecOpen();
faacDecConfigurationPtr FAADAPI faacDecGetCurrentConfiguration(faacDecHandle hDecoder);
uint8_t FAADAPI faacDecSetConfiguration(faacDecHandle hDecoder,
faacDecConfigurationPtr config);
/* Init the library based on info from the AAC file (ADTS/ADIF) */
int32_t FAADAPI faacDecInit(faacDecHandle hDecoder,
uint8_t *buffer,
uint32_t *samplerate,
uint8_t *channels);
/* Init the library using a DecoderSpecificInfo */
int8_t FAADAPI faacDecInit2(faacDecHandle hDecoder, uint8_t *pBuffer,
uint32_t SizeOfDecoderSpecificInfo,
uint32_t *samplerate, uint8_t *channels);
void FAADAPI faacDecClose(faacDecHandle hDecoder);
void* FAADAPI faacDecDecode(faacDecHandle hDecoder,
faacDecFrameInfo *hInfo,
uint8_t *buffer);
#ifdef _WIN32
#pragma pack(pop)
#endif
#ifdef __cplusplus
}
#endif
#endif
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