#include <string.h>
#include <zita-resampler/vresampler.h>
-ResamplingQueue::ResamplingQueue(unsigned freq_in, unsigned freq_out, unsigned num_channels)
- : freq_in(freq_in), freq_out(freq_out), num_channels(num_channels),
+ResamplingQueue::ResamplingQueue(unsigned card_num, unsigned freq_in, unsigned freq_out, unsigned num_channels)
+ : card_num(card_num), freq_in(freq_in), freq_out(freq_out), num_channels(num_channels),
ratio(double(freq_out) / double(freq_in))
{
vresampler.setup(ratio, num_channels, /*hlen=*/32);
bool ResamplingQueue::get_output_samples(double pts, float *samples, ssize_t num_samples)
{
+ assert(num_samples > 0);
if (first_input) {
// No data yet, just return zeros.
memset(samples, 0, num_samples * 2 * sizeof(float));
}
total_consumed_samples -= delay_samples_to_add; // Equivalent to increasing k_a0 and k_a1.
err += delay_samples_to_add;
- first_output = false;
}
+ first_output = false;
// Compute loop filter coefficients for the two filters. We need to compute them
// every time, since they depend on the number of samples the user asked for.
if (buffer.empty()) {
// This should never happen unless delay is set way too low,
// or we're dropping a lot of data.
- fprintf(stderr, "PANIC: Out of input samples to resample, still need %d output samples!\n",
- int(vresampler.out_count));
+ fprintf(stderr, "Card %u: PANIC: Out of input samples to resample, still need %d output samples! (correction factor is %f)\n",
+ card_num, int(vresampler.out_count), rcorr);
memset(vresampler.out_data, 0, vresampler.out_count * 2 * sizeof(float));
return false;
}
vresampler.inp_count = num_input_samples;
vresampler.inp_data = inbuf;
- vresampler.process();
+ int err = vresampler.process();
+ assert(err == 0);
size_t consumed_samples = num_input_samples - vresampler.inp_count;
total_consumed_samples += consumed_samples;