aubio: synth/test-sampler.c

aubio 0.4.6

synth/test-sampler.c
#include <aubio.h>
#include "utils_tests.h"
int main (int argc, char **argv)
{
sint_t err = 0;
if (argc < 4) {
err = 2;
PRINT_ERR("not enough arguments\n");
PRINT_MSG("usage: %s <input_path> <output_path> <sample_path> [samplerate]\n", argv[0]);
return err;
}
uint_t samplerate = 0; // default is the samplerate of input_path
uint_t hop_size = 256;
uint_t n_frames = 0, read = 0;
char_t *source_path = argv[1];
char_t *sink_path = argv[2];
char_t *sample_path = argv[3];
if ( argc == 5 ) samplerate = atoi(argv[4]);
fvec_t *vec = new_fvec(hop_size);
aubio_source_t *source = new_aubio_source(source_path, samplerate, hop_size);
if (samplerate == 0 ) samplerate = aubio_source_get_samplerate(source);
aubio_sink_t *sink = new_aubio_sink(sink_path, samplerate);
aubio_sampler_t * sampler = new_aubio_sampler (samplerate, hop_size);
aubio_sampler_load (sampler, sample_path);
do {
aubio_source_do(source, vec, &read);
if (n_frames / hop_size == 10) {
aubio_sampler_play ( sampler );
}
if (n_frames / hop_size == 40) {
aubio_sampler_play ( sampler );
}
if (n_frames / hop_size == 70) {
aubio_sampler_play ( sampler );
}
if (n_frames > 10.0 * samplerate) {
aubio_sampler_stop ( sampler );
}
aubio_sampler_do (sampler, vec, vec);
aubio_sink_do(sink, vec, read);
n_frames += read;
} while ( read == hop_size );
del_aubio_sampler(sampler);
del_aubio_source(source);
del_aubio_sink(sink);
del_fvec(vec);
aubio_cleanup();
return 0;
}