int is_realtime() { return 1; };
int process_realtime(int64_t size, Samples *input_ptr, Samples *output_ptr) {
double *output_samples = output_ptr->get_data();
int is_realtime() { return 1; };
int process_realtime(int64_t size, Samples *input_ptr, Samples *output_ptr) {
double *output_samples = output_ptr->get_data();