aubio  0.4.9
onset/test-onset.c
#include <aubio.h>
#include "utils_tests.h"
int test_wrong_params(void);
int main (int argc, char **argv)
{
uint_t err = 0;
if (argc < 2) {
err = 2;
PRINT_WRN("no arguments, running tests\n");
err = test_wrong_params();
PRINT_MSG("usage: %s <source_path> [samplerate] [hop_size]\n", argv[0]);
return err;
}
uint_t samplerate = 0;
uint_t win_s = 1024; // window size
uint_t hop_size = win_s / 4;
uint_t n_frames = 0, read = 0;
if ( argc >= 3 ) samplerate = atoi(argv[2]);
if ( argc >= 4 ) hop_size = atoi(argv[3]);
char_t *source_path = argv[1];
aubio_source_t * source = new_aubio_source(source_path, samplerate, hop_size);
if (!source) { err = 1; goto beach; }
if (samplerate == 0 ) samplerate = aubio_source_get_samplerate(source);
// create some vectors
fvec_t * in = new_fvec (hop_size); // input audio buffer
fvec_t * out = new_fvec (2); // output position
// create onset object
aubio_onset_t * o = new_aubio_onset("default", win_s, hop_size, samplerate);
do {
// put some fresh data in input vector
aubio_source_do(source, in, &read);
// execute onset
aubio_onset_do(o,in,out);
// do something with the onsets
if (out->data[0] != 0) {
PRINT_MSG("onset at %.3fms, %.3fs, frame %d\n",
}
n_frames += read;
} while ( read == hop_size );
PRINT_MSG("read %.2fs, %d frames at %dHz (%d blocks) from %s\n",
n_frames * 1. / samplerate,
n_frames, samplerate,
n_frames / hop_size, source_path);
// clean up memory
del_fvec(in);
del_fvec(out);
beach:
return err;
}
int test_wrong_params(void)
{
uint_t win_size = 1024;
uint_t hop_size = win_size / 2;
uint_t samplerate = 44100;
// hop_size < 1
if (new_aubio_onset("default", 5, 0, samplerate)) return 1;
// buf_size < 2
if (new_aubio_onset("default", 1, 1, samplerate)) return 1;
// buf_size < hop_size
if (new_aubio_onset("default", hop_size, win_size, samplerate)) return 1;
// samplerate < 1
if (new_aubio_onset("default", 1024, 512, 0)) return 1;
// specdesc creation failed
if (new_aubio_onset("abcd", win_size, win_size/2, samplerate)) return 1;
// pv creation might fail
o = new_aubio_onset("default", 5, 2, samplerate);
if (o) del_aubio_onset(o);
o = new_aubio_onset("default", win_size, hop_size, samplerate);
if (!aubio_onset_set_default_parameters(o, "wrong_type")) return 1;
return run_on_default_source(main);
}