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/* wavsubs.h
* Functions for opening, closing, reading, writing WAV files - include file
* Jim Jackson
*/
/*
* Copyright (C) 1998-2008 Jim Jackson jj@franjam.org.uk
*
* This include file is part of 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.
* See file COPYING for details.
*/
/* HISTORY
*
* 2 Dec 98 Started
*/
#ifndef __WAVSUBS_H
#define __WAVSUBS_H
#include <stdio.h>
#ifndef AFMT_S16_LE
# define AFMT_S16_LE 16
#endif
#ifndef AFMT_U8
# define AFMT_U8 8
#endif
#ifndef STEREO
# define STEREO 1
#endif
#ifndef MONO
# define MONO 0
#endif
/* WavValues structure for holding information about a set of samples
*/
struct WavValues {
int samples; /* number of samples */
int samplerate; /* samplerate at which data was sampled */
int stereo; /* stereo (1) or mono (0) data */
int afmt; /* format of samples unsigned 8 bit (8)
or Signed 16 bit little endian (16) */
int Bps; /* Bytes per sec */
int Bypsam; /* Bytes per sample */
};
/* Functions definitions......
*/
int isriff(FILE *f);
int wavreadfmt(FILE *f,struct WavValues *W);
int wavwritefmt(FILE *f,struct WavValues *W);
int wavread(FILE *f,struct WavValues *W,unsigned char *buf,int N);
int wavwrite(FILE *f,struct WavValues *W,unsigned char *buf,int N);
int setendian();
/* Macros provided in wavsubs.h for struct WavValues .......
*/
#define GetWavSamplerate(W) ((W)->samplerate)
#define SetWavSamplerate(W,S) ((W)->samplerate = S)
#define GetWavStereo(W) ((W)->stereo)
#define SetWavStereo(W,S) ((W)->stereo = S)
#define GetWavAFmt(W) ((W)->afmt)
#define SetWavAFmt(W,F) ((W)->afmt = F)
#define GetWavSamples(W) ((W)->samples)
#define SetWavSamples(W,N) ((W)->samples = N)
#define IsWavStereo(W) ((W)->stereo == STEREO)
#define IsWavMono(W) ((W)->stereo == MONO)
#define IsWav16bit(W) ((W)->afmt == AFMT_S16_LE)
#define IsWav8bit(W) ((W)->afmt == AFMT_U8)
#define NewWavValues() ((struct WavValues *)malloc(sizeof(struct WavValues)))
extern int ISBIGENDIAN;
struct WavValues *Winit();
#endif /* __WAVSUBS_H */
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