1 files changed, 97 insertions, 0 deletions
diff --git a/examples/aubiotrack.c b/examples/aubiotrack.c
new file mode 100644
index 0000000..dcffbff
--- /dev/null
+++ b/examples/aubiotrack.c
@@ -0,0 +1,97 @@
+/*
+  Copyright (C) 2003-2013 Paul Brossier <piem@aubio.org>
+
+  This file is part of aubio.
+
+  aubio is free software: you can redistribute it and/or modify
+  it under the terms of the GNU General Public License as published by
+  the Free Software Foundation, either version 3 of the License, or
+  (at your option) any later version.
+
+  aubio is distributed in the hope that it will be useful,
+  but WITHOUT ANY WARRANTY; without even the implied warranty of
+  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+  GNU General Public License for more details.
+
+  You should have received a copy of the GNU General Public License
+  along with aubio.  If not, see <http://www.gnu.org/licenses/>.
+
+*/
+
+#include "utils.h"
+#define PROG_HAS_TEMPO 1
+#define PROG_HAS_ONSET 1
+#define PROG_HAS_OUTPUT 1
+#define PROG_HAS_JACK 1
+#include "parse_args.h"
+
+aubio_tempo_t * tempo;
+aubio_wavetable_t *wavetable;
+fvec_t * tempo_out;
+smpl_t is_beat = 0.;
+uint_t is_silence = 0;
+
+void process_block(fvec_t * ibuf, fvec_t *obuf) {
+  aubio_tempo_do (tempo, ibuf, tempo_out);
+  is_beat = fvec_get_sample (tempo_out, 0);
+  if (silence_threshold != -90.)
+    is_silence = aubio_silence_detection(ibuf, silence_threshold);
+  if ( !usejack && ! sink_uri ) return;
+  fvec_zeros (obuf);
+  if ( is_beat && !is_silence ) {
+    aubio_wavetable_play ( wavetable );
+    /* send a midi tap (default to C0) out to the midi output */
+    if (usejack) send_noteon(miditap_note, miditap_velo);
+  } else {
+    aubio_wavetable_stop ( wavetable );
+  }
+  if (mix_input)
+    aubio_wavetable_do (wavetable, ibuf, obuf);
+  else
+    aubio_wavetable_do (wavetable, obuf, obuf);
+}
+
+void process_print (void) {
+  if ( is_beat && !is_silence ) {
+    print_time (aubio_tempo_get_last (tempo));
+    outmsg ("\n");
+  }
+}
+
+int main(int argc, char **argv) {
+  // override general settings from utils.c
+  buffer_size = 1024;
+  hop_size = 512;
+
+  examples_common_init(argc,argv);
+
+  verbmsg ("using source: %s at %dHz\n", source_uri, samplerate);
+
+  verbmsg ("tempo method: %s, ", tempo_method);
+  verbmsg ("buffer_size: %d, ", buffer_size);
+  verbmsg ("hop_size: %d, ", hop_size);
+  verbmsg ("threshold: %f\n", onset_threshold);
+
+  tempo_out = new_fvec(2);
+  tempo = new_aubio_tempo(tempo_method, buffer_size, hop_size, samplerate);
+  // set silence threshold very low to output beats even during silence
+  // aubio_tempo_set_silence(tempo, -1000.);
+  if (onset_threshold != 0.) aubio_tempo_set_threshold (tempo, onset_threshold);
+
+  wavetable = new_aubio_wavetable (samplerate, hop_size);
+  aubio_wavetable_set_freq ( wavetable, 2450.);
+  //aubio_sampler_load (sampler, "/archives/sounds/woodblock.aiff");
+
+  examples_common_process((aubio_process_func_t)process_block,process_print);
+
+  // send a last note off
+  send_noteon (miditap_note, 0);
+
+  del_aubio_tempo(tempo);
+  del_aubio_wavetable (wavetable);
+  del_fvec(tempo_out);
+
+  examples_common_del();
+  return 0;
+}
+