/*************************************************************************/
/* 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 <stdint.h>

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

/******************************************************************************/
typedef struct _sWAVEHEADER
{
	uint16_t wFormatTag;
	uint16_t nChannels;
	uint32_t nSamplesPerSec;
	uint32_t nAvgBytesPerSec;
	uint16_t nBlockAlign;
	uint16_t wBitsPerSample;
	uint16_t cbSize;

} WAVEHEADER;


/******************************************************************************/
typedef struct _sWAV
{
	char m_Name[257];
	WAVEHEADER m_Format;
	uint32_t m_DataSize, m_FileSize, m_HeaderSize, m_FileType, m_numSamples;
	FILE *pHndWavFile;
	uint32_t WREAD;
	uint16_t m_nChannels;
	uint32_t m_SampleRate;
	uint16_t m_nBits;

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

void WavInit(struct _sWAV*, uint32_t nSamplesPerSec, uint16_t nBits, uint16_t nChannels, uint16_t format);
uint32_t WavSetFormat(struct _sWAV*, uint32_t, uint16_t, uint16_t, uint16_t format);
uint32_t WavOpen (struct _sWAV*, char*);
uint32_t WavCreate(struct _sWAV*, char*, uint32_t);
uint32_t WavClose(struct _sWAV*);
uint32_t WavRead(struct _sWAV*, void*, uint32_t);
uint32_t WavWrite(struct _sWAV*, void*, uint32_t);
uint32_t ReadHeader(struct _sWAV*);
uint32_t WriteHeader(struct _sWAV*);
uint16_t WavGetnBits(struct _sWAV *pObj);
uint32_t WavGetRate(struct _sWAV *pObj);
uint16_t WavGetnChannels(struct _sWAV *pObj);
char* WavGetFileName(struct _sWAV *pObj);

void WavDeIlvd(struct _sWAV *pObj, int16_t *pIn, int16_t **ppOut, uint32_t len);
void WavDeIlvdDouble(struct _sWAV *pObj, int16_t *pIn, double **ppOut, uint32_t len);
void WavDeIlvdFloat(struct _sWAV *pObj, int16_t *pIn, float **ppOut, uint32_t len);
void WavIlvd(struct _sWAV *pObj, int16_t **ppIn, int16_t *pOut, uint32_t len);
void WavIlvdDouble(struct _sWAV *pObj, double **ppIn, int16_t *pOut, uint32_t len);
void WavIlvdFloat(struct _sWAV *pObj, float **ppIn, int16_t *pOut, uint32_t len);

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