ref: 3bf80b9872d63282409dfc876e3dc29140c134ef
dir: /tests/src/tempo/test-tempo.c/
#include <aubio.h> #include "utils_tests.h" int main (int argc, char **argv) { uint_t err = 0; if (argc < 2) { err = 2; PRINT_ERR("not enough arguments\n"); PRINT_MSG("read a wave file as a mono vector\n"); PRINT_MSG("usage: %s <source_path> [samplerate] [win_size] [hop_size]\n", argv[0]); return err; } uint_t samplerate = 0; if ( argc >= 3 ) samplerate = atoi(argv[2]); uint_t win_size = 1024; // window size if ( argc >= 4 ) win_size = atoi(argv[3]); uint_t hop_size = win_size / 4; if ( argc >= 5 ) hop_size = atoi(argv[4]); uint_t n_frames = 0, read = 0; 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 (1); // output position // create tempo object aubio_tempo_t * o = new_aubio_tempo("default", win_size, hop_size, samplerate); do { // put some fresh data in input vector aubio_source_do(source, in, &read); // execute tempo aubio_tempo_do(o,in,out); // do something with the beats if (out->data[0] != 0) { PRINT_MSG("beat at %.3fms, %.3fs, frame %d, %.2fbpm with confidence %.2f\n", aubio_tempo_get_last_ms(o), aubio_tempo_get_last_s(o), aubio_tempo_get_last(o), aubio_tempo_get_bpm(o), aubio_tempo_get_confidence(o)); } 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_aubio_tempo(o); del_fvec(in); del_fvec(out); del_aubio_source(source); beach: aubio_cleanup(); return err; }