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/* this file is a part of amp software, (C) tomislav uzelac 1996,1997
*/
/* formats.c put functions for different audio formats in here. currently
* only .wav, .au would be fine
* Created by: tomislav uzelac May 1996
*/
#include "audio.h"
#define FORMATS
#include "formats.h"
/* leave room for .wav header
*/
void wav_begin(void)
{
fwrite("",1,44,out_file);
}
/* this is not proper really, but works!
*/
void wav_end(struct AUDIO_HEADER *header)
{
unsigned char ispred[20]={0x52 ,0x49 ,0x46 ,0x46 ,0xfc ,0x59 ,0x4 ,0x0 ,0x57
,0x41 ,0x56 ,0x45 ,0x66 ,0x6d ,0x74 ,0x20 ,0x10 ,0x0 ,0x0 ,0x0 };
unsigned char iza[8]={0x64 ,0x61 ,0x74 ,0x61};
int len,fs,i;
len=ftell(out_file)-44;
fs=t_sampling_frequency[header->ID][header->sampling_frequency];
rewind(out_file);
fwrite(ispred,1,20,out_file);
/* 'microsoft' PCM */
fputc(1,out_file);
fputc(0,out_file);
/* nch */
fputc(nch,out_file);
fputc(0,out_file);
/* samples_per_second */
for (i=0;i<32;i+=8) fputc((fs>>i)&0xff,out_file);
/* average block size */
fs *= 2*nch;
for (i=0;i<32;i+=8) fputc((fs>>i)&0xff,out_file);
/* block align */
fs = 2*nch;
for (i=0;i<16;i+=8) fputc((fs>>i)&0xff,out_file);
/* bits per sample */
fputc(16,out_file);
fputc(0,out_file);
/* i jope anomalija! */
fwrite(iza,1,4,out_file);
/* length */
for (i=0;i<32;i+=8) fputc((len>>i)&0xff,out_file);
/* exit(0); F*k U man! why?!!!*/
}
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