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#include <stdio.h>
#include <stdlib.h>
#include <unistd.h>
#include <string.h>
#include <fcntl.h>
#include <sys/types.h>
#include "audiofile.h"
#define LENGTH 5000
void main (int argc,char *argv[])
{
unsigned char buffer[LENGTH];
short *buf16;
Audio_File af;
int i,j;
float factor;
if (argc<2) return;
af.fd=-1;
af.bps=8;
af.channels=1;
af.comp=AF_PCM;
af.type=AF_RIFF;
af.freq=22050;
af.length=LENGTH;
af.headoffs=-1;
/*
factor=255.0/(float) (LENGTH/2);
for (i=0;i<LENGTH/2;i++) buffer[i]=(char) (factor*(float)i);
for (i=LENGTH/2,j=LENGTH;i<LENGTH;i++,j--)
buffer[i]=(char) (factor*(float)j);
*/
for (i=0;i<=LENGTH/3;i++) buffer[i]=0;
for (i=LENGTH/3;i<LENGTH-LENGTH/3;i++) buffer[i]=255;
for (i=LENGTH-LENGTH/3;i<LENGTH;i++) buffer[i]=0;
/*
buf16=(short*) buffer;
for (i=0;i<LENGTH/2;i++) buf16[i]=0;
buf16[LENGTH/2-1]=30000;
buf16[LENGTH/2-2]=-10000;
buffer[LENGTH-2]=30;
buffer[LENGTH-1]=230;
*/
if (af_open(argv[1],&af,AF_NEW)==AF_ERROR) {
fprintf(stderr,"Couldn't open file %s !\n",argv[1]);
return;
}
if (af_write(af,buffer,LENGTH) == AF_ERROR) {
fprintf(stderr,"Couldn't write file %s !\n",argv[1]);
}
af_close(af);
return;
}
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