ref: b31a91c1c720445de742fd039b7ba491011b3e65
dir: /tests/src/io/test-source_seek.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] [hop_size]\n", argv[0]); PRINT_MSG("examples:\n"); PRINT_MSG(" - read file.wav at original samplerate\n"); PRINT_MSG(" %s file.wav\n", argv[0]); PRINT_MSG(" - read file.wav at 32000Hz\n"); PRINT_MSG(" %s file.aif 32000\n", argv[0]); PRINT_MSG(" - read file.wav at original samplerate with 4096 blocks\n"); PRINT_MSG(" %s file.wav 0 4096 \n", argv[0]); return err; } uint_t samplerate = 0; uint_t hop_size = 256; uint_t n_frames = 0, read = 0; uint_t old_n_frames_1 = 0, old_n_frames_2 = 0, old_n_frames_3 = 0; if ( argc == 3 ) samplerate = atoi(argv[2]); if ( argc == 4 ) hop_size = atoi(argv[3]); char_t *source_path = argv[1]; fvec_t *vec = new_fvec(hop_size); aubio_source_t* s = new_aubio_source(source_path, samplerate, hop_size); if (!s) { err = 1; goto beach; } if (samplerate == 0 ) samplerate = aubio_source_get_samplerate(s); do { aubio_source_do(s, vec, &read); //fvec_print (vec); 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); old_n_frames_1 = n_frames; aubio_source_seek (s, 0); n_frames = 0; do { aubio_source_do(s, vec, &read); //fvec_print (vec); 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); old_n_frames_2 = n_frames; aubio_source_seek (s, old_n_frames_1 / 2); n_frames = 0; do { aubio_source_do(s, vec, &read); //fvec_print (vec); 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); old_n_frames_3 = n_frames; del_aubio_source (s); beach: del_fvec (vec); // check that we got exactly the same number of frames assert ( old_n_frames_2 == old_n_frames_1 ); // check that we got about half the frames, with 3 decimals assert ( roundf(1.e3 * old_n_frames_1 / old_n_frames_3) / 1.e3 == 2.); return err; }