PORT
void xresampleV (double* input, double* output, int numsamps, int* outsamps, void* ptr)
{
RESAMPLE a = (RESAMPLE)ptr;
a->in = input;
a->out = output;
a->size = numsamps;
*outsamps = xresample(a);
}
static void *receive_thread(void *arg) {
float isample;
float qsample;
int outsamples;
int elements;
int flags=0;
long long timeNs=0;
long timeoutUs=10000L;
int i;
#ifdef TIMING
struct timeval tv;
long start_time, end_time;
rate_samples=0;
gettimeofday(&tv, NULL);
start_time=tv.tv_usec + 1000000 * tv.tv_sec;
#endif
running=1;
fprintf(stderr,"lime_protocol: receive_thread\n");
while(running) {
elements=SoapySDRDevice_readStream(lime_device,stream,(void *)&buffer,max_samples,&flags,&timeNs,timeoutUs);
//fprintf(stderr,"read %d elements\n",elements);
if(actual_rate!=sample_rate) {
for(i=0; i<elements; i++) {
resamples[i*2]=(double)buffer[i*2];
resamples[(i*2)+1]=(double)buffer[(i*2)+1];
}
outsamples=xresample(resampler);
for(i=0; i<outsamples; i++) {
iqinputbuffer[samples*2]=(double)resampled[i*2];
iqinputbuffer[(samples*2)+1]=(double)resampled[(i*2)+1];
samples++;
#ifdef TIMING
rate_samples++;
if(rate_samples==sample_rate) {
gettimeofday(&tv, NULL);
end_time=tv.tv_usec + 1000000 * tv.tv_sec;
fprintf(stderr,"%d samples in %ld\n",rate_samples, end_time-start_time);
start_time=end_time;
rate_samples=0;
}
#endif
if(samples==buffer_size) {
int error;
fexchange0(CHANNEL_RX0, iqinputbuffer, audiooutputbuffer, &error);
if(error!=0) {
fprintf(stderr,"fexchange0 (CHANNEL_RX0) returned error: %d\n", error);
}
if(local_audio) {
audio_write(audiooutputbuffer,outputsamples);
}
Spectrum0(1, CHANNEL_RX0, 0, 0, iqinputbuffer);
samples=0;
}
}
} else {
for(i=0; i<elements; i++) {
iqinputbuffer[samples*2]=(double)buffer[i*2];
iqinputbuffer[(samples*2)+1]=(double)buffer[(i*2)+1];
samples++;
if(samples==buffer_size) {
int error;
fexchange0(CHANNEL_RX0, iqinputbuffer, audiooutputbuffer, &error);
if(error!=0) {
fprintf(stderr,"fexchange0 (CHANNEL_RX0) returned error: %d\n", error);
}
audio_write(audiooutputbuffer,outputsamples);
Spectrum0(1, CHANNEL_RX0, 0, 0, iqinputbuffer);
samples=0;
}
}
}
}
fprintf(stderr,"lime_protocol: receive_thread: SoapySDRDevice_closeStream\n");
SoapySDRDevice_closeStream(lime_device,stream);
fprintf(stderr,"lime_protocol: receive_thread: SoapySDRDevice_unmake\n");
SoapySDRDevice_unmake(lime_device);
}
