int main(int argc, char **argv) {
FILE *fpin, *fpout;
short int data[2];
int smpl, diff;
short int ch, bs, bps;
unsigned int ds;
unsigned long start, end;
double s_sec, e_sec;
/* コマンドライン引数が正しく与えられなかった場合 */
if(argc != 3) {
printf("usage: %s <infile.wav> <outfile.dat>\n", argv[0]);
exit(1);
}
/* 入力音声ファイルオープン */
fpin = fopen(argv[1], "rb");
if(fpin == NULL) {
printf("%s not found.\n", argv[1]);
exit(1);
}
/* wavファイルのヘッダをダンプし, 秒数を求める */
dump_wav(fpin, &ch, &smpl, &bs, &bps, &ds);
/* 出力テキストファイルオープン */
fpout = fopen(argv[2], "w");
printf("start: ");
scanf("%lf", &s_sec);
start = s_sec * 44100 * 2;
if(start % 2 != 0) start++;
printf("end: ");
scanf("%lf", &e_sec);
end = e_sec * 44100 * 2;
fseek(fpin, start, SEEK_CUR);
printf("position: %ld\n", ftell(fpin));
while(ftell(fpin) < end) {
fread((void *)data, sizeof(short), 2, fpin);
diff = data[1] - data[0];
fprintf(fpout, "%d\n", diff);
//fwrite((void *)&diff, sizeof(int), 1, fpout);
fseek(fpin, -2, SEEK_CUR);
}
fclose(fpin);
fclose(fpout);
return 0;
}
int main() {
int n,m,res;
Sint16 buf[NB_SAMPLE],
val1,val2;
res=init_dump_wav("out.wav");
printf("init:%d\n",res);
for (n=val1=val2=0;n<30;++n) {
for (m=0;m<NB_SAMPLE;m+=2) {
val1=(val1+6)%628; // 100 * 2 * PI = 628
val2=(val2+9)%628;
buf[m]=Sint16(10000. * sin(val1/100.));
buf[m+1]=Sint16(10000. * sin(val2/100.));
}
res=dump_wav((char*)buf,NB_SAMPLE*2);
if (!res) break;
}
printf("dump:%d\n",res);
res=close_dump_wav();
printf("close:%d\n",res);
}
void sb16_play(WAVE_HDR* wave)
{
ULONG MappedIrq;
KIRQL Dirql;
KAFFINITY Affinity;
PKINTERRUPT IrqObject;
unsigned int newmask;
unsigned int i;
unsigned int tmp[255];
i=0;
dump_wav(wave);
do
{
// tmp[i++]=get_dma_page(0x0fffff);
// DPRINT1("0x%x ",tmp[i-1]);
}
while((tmp[i-1]&0xffff)!=0);
// free_page((tmp[0]),i-1);
sb16.buffer=((unsigned char*)tmp[i-1]);
/*
* Because this is used by alomost every subsystem including irqs it
* must be atomic. The following code sequence disables interrupts after
* saving the previous state of the interrupt flag
*/
_disable();
memcpy(sb16.buffer,(&wave->data),wave->dLen);
MappedIrq = HalGetInterruptVector(Internal,0,0,8+sb16.irq,&Dirql,&Affinity);
IoConnectInterrupt(&IrqObject,DMAOutputISR,0,NULL,MappedIrq,Dirql,Dirql,0,FALSE,Affinity,FALSE);
// mask=inb(0x21);
newmask=((int)1<<sb16.irq);
// outb(0x21,(mask&~newmask));
// Restore the interrupt flag
_enable();
// disable_dma(sb16.dma8);
//outb(0x0a,5);
// clear_dma_ff(1);
//outb(0xc,0);
// set_dma_count(1,wave->dLen);
//set_dma_mode(1,DMA_MODE_WRITE);
//outb(0xb,0x49);
//outb(0x3,(wave->dLen)&0xff);
//outb(0x3,((unsigned int)(wave->dLen)>>8)&0xff);
//set_dma_addr(sb16.dma8,(unsigned int)sb16.buffer);
//outb(0x83,(((unsigned int)(sb16.buffer-IDMAP_BASE)>>16))&0xf);
//outb(0x2,((unsigned int)sb16.buffer&0xff));
//outb(0x2,(((unsigned int)(sb16.buffer-IDMAP_BASE)>>8))&0xff);
//enable_dma(sb16.dma8);
//outb(0xa,1);
write_dsp(sb16.base,0x00D1);
write_dsp(sb16.base,0x40);
write_dsp(sb16.base,((unsigned char)256-(1000000/wave->nSamplesPerSec)));
// outb(sb16.base + 4, (int) 0xa);
// outb(sb16.base + 5, (int) 0x00);
// outb(sb16.base + 4, (int) 4);
// outb(sb16.base + 5, (int) 0xFF);
// outb(sb16.base + 4, (int) 0x22);
// outb(sb16.base + 5, (int) 0xFF);
write_dsp(sb16.base,0x14);
write_dsp(sb16.base,(wave->dLen&0x00ff));
write_dsp(sb16.base,((wave->dLen)&0xff00)>>8);
// write_dsp(sb16.base,0xc0);
// write_dsp(sb16.base,0x0);
// OldIRQ=HalGetInterruptVector(Internal,0,0,irq+8,&irql,&affinity);
// DPRINT1("OldIRQ: 0x%x\n",OldIRQ);
// status=IoConnectInterrupt(&IrqObject,playRoutine,0,NULL,OldIRQ,irql,irql,0,FALSE,affinity,FALSE);
// if(status!=STATUS_SUCCESS) DPRINT1("Couldn't set irq\n");
// else DPRINT1("IRQ set\n");
}