aubio 0.4.2~alpha

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io/test-source_multi.c
#include <aubio.h>
#include "utils_tests.h"
int main (int argc, char **argv)
{
sint_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]);
PRINT_MSG(" - read file.wav at original samplerate with 256 frames blocks, mono\n");
PRINT_MSG(" %s file.wav 0 4096 1\n", argv[0]);
return err;
}
uint_t samplerate = 0;
uint_t hop_size = 256;
uint_t n_frames = 0, read = 0;
uint_t n_channels = 0;
if ( argc >= 3 ) samplerate = atoi(argv[2]);
if ( argc >= 4 ) hop_size = atoi(argv[3]);
if ( argc >= 5 ) n_channels = atoi(argv[4]);
char_t *source_path = argv[1];
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);
if ( n_channels == 0 ) n_channels = aubio_source_get_channels(s);
fmat_t *mat = new_fmat(n_channels, hop_size);
do {
aubio_source_do_multi (s, mat, &read);
fmat_print (mat);
n_frames += read;
} while ( read == hop_size );
PRINT_MSG("read %d frames in %d channels at %dHz (%d blocks) from %s\n",
n_frames, n_channels, samplerate, n_frames / hop_size, source_path);
del_fmat (mat);
del_aubio_source (s);
beach:
return err;
}