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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: faad.h,v 1.3 2003/04/12 14:58:47 miguelfreitas Exp $
**/
#ifndef __AACDEC_H__
#define __AACDEC_H__
#ifdef __cplusplus
extern "C" {
#endif /* __cplusplus */
#ifdef _WIN32
#pragma pack(push, 8)
#ifndef FAADAPI
#define FAADAPI __cdecl
#endif
#else
#ifndef FAADAPI
#define FAADAPI
#endif
#endif
#define FAAD2_VERSION "1.2 beta"
/* object types for AAC */
#define MAIN 0
#define LC 1
#define SSR 2
#define LTP 3
#define ER_LC 17
#define ER_LTP 19
#define LD 23
#define DRM_ER_LC 27 /* special object type for DRM */
/* header types */
#define RAW 0
#define ADIF 1
#define ADTS 2
/* library output formats */
#define FAAD_FMT_16BIT 1
#define FAAD_FMT_24BIT 2
#define FAAD_FMT_32BIT 3
#define FAAD_FMT_FLOAT 4
#define FAAD_FMT_DOUBLE 5
#define FAAD_FMT_16BIT_DITHER 6
#define FAAD_FMT_16BIT_L_SHAPE 7
#define FAAD_FMT_16BIT_M_SHAPE 8
#define FAAD_FMT_16BIT_H_SHAPE 9
/* Capabilities */
#define LC_DEC_CAP (1<<0)
#define MAIN_DEC_CAP (1<<1)
#define LTP_DEC_CAP (1<<2)
#define LD_DEC_CAP (1<<3)
#define ERROR_RESILIENCE_CAP (1<<4)
#define FIXED_POINT_CAP (1<<5)
/* A decode call can eat up to FAAD_MIN_STREAMSIZE octets per decoded channel,
so at least so much octets per channel should be available in this stream */
#define FAAD_MIN_STREAMSIZE 768 /* 6144 bits/channel */
typedef void *faacDecHandle;
typedef struct mp4AudioSpecificConfig
{
/* Audio Specific Info */
unsigned char objectTypeIndex;
unsigned char samplingFrequencyIndex;
unsigned long samplingFrequency;
unsigned char channelsConfiguration;
/* GA Specific Info */
unsigned char frameLengthFlag;
unsigned char dependsOnCoreCoder;
unsigned long coreCoderDelay;
unsigned char extensionFlag;
unsigned char aacSectionDataResilienceFlag;
unsigned char aacScalefactorDataResilienceFlag;
unsigned char aacSpectralDataResilienceFlag;
unsigned char epConfig;
} mp4AudioSpecificConfig;
typedef struct faacDecConfiguration
{
unsigned char defObjectType;
unsigned long defSampleRate;
unsigned char outputFormat;
} faacDecConfiguration, *faacDecConfigurationPtr;
typedef struct faacDecFrameInfo
{
unsigned long bytesconsumed;
unsigned long samples;
unsigned char channels;
unsigned char error;
unsigned long samplerate;
} faacDecFrameInfo;
char* FAADAPI faacDecGetErrorMessage(unsigned char errcode);
unsigned long FAADAPI faacDecGetCapabilities();
faacDecHandle FAADAPI faacDecOpen();
faacDecConfigurationPtr FAADAPI faacDecGetCurrentConfiguration(faacDecHandle hDecoder);
unsigned char FAADAPI faacDecSetConfiguration(faacDecHandle hDecoder,
faacDecConfigurationPtr config);
/* Init the library based on info from the AAC file (ADTS/ADIF) */
long FAADAPI faacDecInit(faacDecHandle hDecoder,
unsigned char *buffer,
unsigned long buffer_size,
unsigned long *samplerate,
unsigned char *channels);
/* Init the library using a DecoderSpecificInfo */
char FAADAPI faacDecInit2(faacDecHandle hDecoder, unsigned char *pBuffer,
unsigned long SizeOfDecoderSpecificInfo,
unsigned long *samplerate, unsigned char *channels);
/* Init the library for DRM */
char FAADAPI faacDecInitDRM(faacDecHandle hDecoder, unsigned long samplerate,
unsigned char channels);
void FAADAPI faacDecClose(faacDecHandle hDecoder);
void* FAADAPI faacDecDecode(faacDecHandle hDecoder,
faacDecFrameInfo *hInfo,
unsigned char *buffer,
unsigned long buffer_size);
char FAADAPI AudioSpecificConfig(unsigned char *pBuffer,
unsigned long buffer_size,
mp4AudioSpecificConfig *mp4ASC);
#ifdef _WIN32
#pragma pack(pop)
#endif
#ifdef __cplusplus
}
#endif /* __cplusplus */
#endif
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