/*************************************************************************/
/* Speicher, Laden und Erzeugen von WAV und PCM Dateien
/*
/* Datum : 27.03.2002
/* Autor : Jens Ahrensfeld
/* Datei : wav.h
/*
/*************************************************************************/
#ifndef AVWAV_H
#define AVWAV_H

#include <windows.h>
#define INT8    char
#define INT16   short
#define INT32   long
#define UINT8   unsigned char
#define UINT16  unsigned short
#define UINT32  unsigned long

#define bs		18
#define WAVE_FORMAT_PCM 1
#define FILETYPE_RAW 0
#define FILETYPE_WAV 1

/******************************************************************************/
typedef struct _sWAVEHEADER
{
	UINT16 wFormatTag;
	UINT16 nChannels;
	UINT32 nSamplesPerSec;
	UINT32 nAvgBytesPerSec;
	UINT16 nBlockAlign;
	UINT16 wBitsPerSample;
	UINT16 cbSize;

} WAVEHEADER;


/******************************************************************************/
typedef struct _sWAV
{
	char m_Name[257];
	WAVEHEADER m_Format;
	UINT32 m_DataSize, m_FileSize, m_HeaderSize, m_FileType, m_numSamples;
	FILE *pHndWavFile;
	UINT32 WREAD;
	UINT16 m_nChannels;
	UINT32 m_SampleRate;
	UINT16 m_nBits;

} WAV;
/******************************************************************************/
/* Global Functions
/******************************************************************************/
#ifdef __cplusplus
extern "C" {
#endif

void WavInit(struct _sWAV*, UINT32 nSamplesPerSec, UINT16 nBits, UINT16 nChannels, UINT16 format);
UINT32 WavSetFormat(struct _sWAV*, UINT32, UINT16, UINT16, UINT16 format);
UINT32 WavOpen (struct _sWAV*, char*);
UINT32 WavCreate(struct _sWAV*, char*, UINT32);
UINT32 WavClose(struct _sWAV*);
UINT32 WavRead(struct _sWAV*, void*, UINT32);
UINT32 WavWrite(struct _sWAV*, void*, UINT32);
UINT32 ReadHeader(struct _sWAV*);
UINT32 WriteHeader(struct _sWAV*);
UINT16 WavGetnBits(struct _sWAV *pObj);
UINT32 WavGetRate(struct _sWAV *pObj);
UINT16 WavGetnChannels(struct _sWAV *pObj);
char* WavGetFileName(struct _sWAV *pObj);

void WavDeIlvd(struct _sWAV *pObj, INT16 *pIn, INT16 **ppOut, UINT32 len);
void WavDeIlvdDouble(struct _sWAV *pObj, INT16 *pIn, double **ppOut, UINT32 len);
void WavDeIlvdFloat(struct _sWAV *pObj, INT16 *pIn, float **ppOut, UINT32 len);
void WavIlvd(struct _sWAV *pObj, INT16 **ppIn, INT16 *pOut, UINT32 len);
void WavIlvdDouble(struct _sWAV *pObj, double **ppIn, INT16 *pOut, UINT32 len);
void WavIlvdFloat(struct _sWAV *pObj, float **ppIn, INT16 *pOut, UINT32 len);

#ifdef __cplusplus
}
#endif
#endif /* AVWAV_H */