+ if (!_smf) {
+ return;
+ }
+
+ names.clear ();
+
+ Glib::Threads::Mutex::Lock lm (_smf_lock);
+
+ for (uint16_t n = 0; n < _smf->number_of_tracks; ++n) {
+ smf_track_t* trk = smf_get_track_by_number (_smf, n+1);
+ if (!trk) {
+ names.push_back (string());
+ } else {
+ if (trk->name) {
+ names.push_back (trk->name);
+ } else {
+ names.push_back (string());
+ }
+ }
+ }
+}
+
+void
+SMF::instrument_names(vector<string>& names) const
+{
+ if (!_smf) {
+ return;
+ }
+
+ names.clear ();
+
+ Glib::Threads::Mutex::Lock lm (_smf_lock);
+
+ for (uint16_t n = 0; n < _smf->number_of_tracks; ++n) {
+ smf_track_t* trk = smf_get_track_by_number (_smf, n+1);
+ if (!trk) {
+ names.push_back (string());
+ } else {
+ if (trk->instrument) {
+ names.push_back (trk->instrument);
+ } else {
+ names.push_back (string());
+ }
+ }
+ }
+}
+
+SMF::Tempo::Tempo (smf_tempo_t* smft)
+ : time_pulses (smft->time_pulses)
+ , time_seconds (smft->time_seconds)
+ , microseconds_per_quarter_note (smft->microseconds_per_quarter_note)
+ , numerator (smft->numerator)
+ , denominator (smft->denominator)
+ , clocks_per_click (smft->clocks_per_click)
+ , notes_per_note (smft->notes_per_note)
+{
+}
+
+int
+SMF::num_tempos () const
+{
+ assert (_smf);
+ return smf_get_tempo_count (_smf);
+}
+
+SMF::Tempo*
+SMF::tempo_at_smf_pulse (size_t smf_pulse) const
+{
+ smf_tempo_t* t = smf_get_tempo_by_seconds (_smf, smf_pulse);
+ if (!t) {
+ return 0;
+ }
+ return new Tempo (t);
+}
+
+SMF::Tempo*
+SMF::tempo_at_seconds (double seconds) const
+{
+ smf_tempo_t* t = smf_get_tempo_by_seconds (_smf, seconds);
+ if (!t) {
+ return 0;
+ }
+ return new Tempo (t);
+}
+
+SMF::Tempo*
+SMF::nth_tempo (size_t n) const
+{
+ assert (_smf);
+
+ smf_tempo_t* t = smf_get_tempo_by_number (_smf, n);
+ if (!t) {
+ return 0;
+ }
+
+ return new Tempo (t);