uint8_t PLR_PlayFullFile(const char* filename) {
uint8_t err = ERR_OK;
err = PLR_StartNewFile(filename,FALSE);
if (err != ERR_OK) {
return err;
}
while (PlaybackIsSet()) {
feedDataStream();
}
return ERR_OK;
}
static portTASK_FUNCTION( playerTask, pvParameters) {
(void) pvParameters; /* not used */
//VS_SetVolume(0x2014);
VS_SetVolume(0x0000);
for (;;) {
turnlight();
feedDataStream();
FRTOS1_vTaskDelay(TASKDEL_MS / portTICK_RATE_MS);
}
}
static int zerocorr(const char *confFile, int verbose)
{
Baseline *B;
int n, j, v, index;
sighandler_t oldsiginthand;
double x, y, window, scale;
oldsiginthand = signal(SIGINT, siginthand);
B = newBaseline(confFile);
if(!B)
{
return EXIT_FAILURE;
}
if(verbose > 0)
{
printBaseline(B);
}
for(n = 0; n < B->nFFT; n++)
{
if(verbose > 1 && n % 100 == 0)
{
printf("%d of %d FFTs complete\n", n, B->nFFT);
}
v = feedDataStream(B->ds1);
if(v < 0)
{
break;
}
v = feedDataStream(B->ds2);
if(v < 0)
{
break;
}
if(verbose > 2 && n % 1000 == 0)
report_baseline_data(B, verbose > 3);
for(j = 0; j < B->nChan; j++)
{
B->visibility[j] += B->ds1->spec[j]*~B->ds2->spec[j];
B->ac1[j] += creal(B->ds1->spec[j]*~B->ds1->spec[j]);
B->ac2[j] += creal(B->ds2->spec[j]*~B->ds2->spec[j]);
}
if(die)
{
fprintf(stderr, "\nStopping early at %d / %d\n", n+1, B->nFFT);
break;
}
}
if(n == 0)
{
fprintf(stderr, "No data correlated!\n");
}
else
{
printf("%d FFTs processed\n", n);
scale = 1.0/(n);
for(j = 0; j < B->nChan; j++)
{
x = creal(B->visibility[j])*scale;
y = cimag(B->visibility[j])*scale;
fprintf(B->outVis, "%d %e %e %e %e %e %e %e\n", j, j*B->deltaF, x, y, sqrt(x*x+y*y), atan2(y, x), B->ac1[j]/n, B->ac2[j]/n);
}
fftw_execute(B->plan);
scale = 1.0/(n);
for(j = -B->nChan/2+1; j < B->nChan/2; j++)
{
index = j >= 0 ? j : j+B->nChan;
window = (B->nChan/2 - abs(j))/(float)(B->nChan/2);
x = creal(B->lags[index])*scale;
y = cimag(B->lags[index])*scale;
fprintf(B->outLag, "%d %e %e %e %e %e %e\n", j, j*B->deltaT, x, y, sqrt(x*x+y*y), atan2(y, x), window);
}
}
deleteBaseline(B);
signal(SIGINT, oldsiginthand);
return EXIT_SUCCESS;
}
