Tempo ramps - improve constraint mod + bbt dragging begavior.
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@ -3481,27 +3481,31 @@ BBTRulerDrag::BBTRulerDrag (Editor* e, ArdourCanvas::Item* i)
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, before_state (0)
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{
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DEBUG_TRACE (DEBUG::Drags, "New BBTRulerDrag\n");
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}
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void
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BBTRulerDrag::start_grab (GdkEvent* event, Gdk::Cursor* cursor)
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{
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Drag::start_grab (event, cursor);
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show_verbose_cursor_time (adjusted_current_frame (event));
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TempoMap& map (_editor->session()->tempo_map());
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ostringstream sstr;
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sstr << fixed << setprecision(3) << map.tempo_at (adjusted_current_frame (event)).beats_per_minute();
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show_verbose_cursor_text (sstr.str());
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}
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void
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BBTRulerDrag::setup_pointer_frame_offset ()
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{
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_pointer_frame_offset = 0;
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TempoMap& map (_editor->session()->tempo_map());
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_pointer_frame_offset = raw_grab_frame() - map.frame_at_beat (ceil (map.beat_at_frame (raw_grab_frame())));
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}
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void
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BBTRulerDrag::motion (GdkEvent* event, bool first_move)
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{
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TempoMap& map (_editor->session()->tempo_map());
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if (first_move) {
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TempoMap& map (_editor->session()->tempo_map());
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/* get current state */
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before_state = &map.get_state();
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_editor->begin_reversible_command (_("dilate tempo"));
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@ -3513,7 +3517,9 @@ BBTRulerDrag::motion (GdkEvent* event, bool first_move)
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/* adjust previous tempo to match pointer frame */
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_editor->session()->tempo_map().gui_dilate_tempo (last_pointer_frame(), pf);
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}
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show_verbose_cursor_time (pf);
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ostringstream sstr;
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sstr << fixed << setprecision(3) << map.tempo_at (pf).beats_per_minute();
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show_verbose_cursor_text (sstr.str());
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}
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void
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@ -78,14 +78,16 @@ TempoCurve::TempoCurve (PublicEditor& ed, ArdourCanvas::Container& parent, guint
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* make sure they can both be used to lookup this object.
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*/
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group->set_data ("marker", this);
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_curve->set_data ("tempo curve", this);
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_background->set_data ("tempo curve", this);
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if (handle_events) {
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//group->Event.connect (sigc::bind (sigc::mem_fun (editor, &PublicEditor::canvas_marker_event), group, this));
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}
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set_position (_tempo.frame(), UINT32_MAX);
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_curve->Event.connect (sigc::bind (sigc::mem_fun (editor, &PublicEditor::canvas_tempo_curve_event), group, this));
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_background->Event.connect (sigc::bind (sigc::mem_fun (editor, &PublicEditor::canvas_tempo_curve_event), group, this));
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_curve->Event.connect (sigc::bind (sigc::mem_fun (editor, &PublicEditor::canvas_tempo_curve_event), _curve, this));
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_background->Event.connect (sigc::bind (sigc::mem_fun (editor, &PublicEditor::canvas_tempo_curve_event), _background, this));
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}
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@ -2798,7 +2798,6 @@ TempoMap::gui_dilate_tempo (const framepos_t& frame, const framepos_t& end_frame
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TempoSection* prev_t = copy_metrics_and_point (_metrics, future_map, ts);
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TempoSection* prev_to_prev_t = 0;
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const frameoffset_t fr_off = end_frame - frame;
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double new_bpm = 0.0;
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if (prev_t && prev_t->pulse() > 0.0) {
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prev_to_prev_t = const_cast<TempoSection*>(&tempo_section_at_locked (future_map, prev_t->frame() - 1));
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@ -2808,30 +2807,34 @@ TempoMap::gui_dilate_tempo (const framepos_t& frame, const framepos_t& end_frame
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constant to constant is straightforward, as the tempo prev to prev_t has constant slope.
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*/
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double contribution = 0.0;
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frameoffset_t frame_contribution = 0;
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frameoffset_t prev_t_frame_contribution = fr_off;
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if (prev_to_prev_t && prev_to_prev_t->type() == TempoSection::Ramp) {
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/* prev to prev_t's position will remain constant in terms of frame and pulse. lets use frames. */
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contribution = (prev_t->frame() - prev_to_prev_t->frame()) / (double) (frame - prev_to_prev_t->frame());
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frame_contribution = contribution * (double) fr_off;
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prev_t_frame_contribution -= frame_contribution;
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contribution = prev_to_prev_t->beats_per_minute() / (prev_to_prev_t->beats_per_minute() + prev_t->beats_per_minute());
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}
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frameoffset_t frame_contribution = contribution * (double) fr_off;
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frameoffset_t prev_t_frame_contribution = fr_off - frame_contribution;
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const double start_tempo = prev_t->tempo_at_frame (frame, _frame_rate);
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const double end_tempo = prev_t->tempo_at_frame (frame + prev_t_frame_contribution, _frame_rate);
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const double start_pulse = prev_t->pulse_at_frame (frame, _frame_rate);
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const double end_pulse = prev_t->pulse_at_frame (end_frame, _frame_rate);
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const double dpulse = (start_pulse) / (end_pulse);
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double new_bpm = prev_t->tempo_at_frame (prev_t->frame() - prev_t_frame_contribution, _frame_rate) * (double) prev_t->note_type();
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if (prev_t->type() == TempoSection::Constant || prev_t->c_func() == 0.0) {
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if (prev_t->position_lock_style() == MusicTime) {
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if (prev_to_prev_t && prev_to_prev_t->type() == TempoSection::Ramp) {
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new_bpm = prev_t->beats_per_minute() * ((frame - prev_t->frame())
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/ (double) (frame + prev_t_frame_contribution - prev_t->frame()));
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/ (double) ((frame + prev_t_frame_contribution) - prev_t->frame()));
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} else {
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/* prev to prev is irrelevant */
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const double meter_pulse = prev_t->pulse_at_frame (frame, _frame_rate);
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const double frame_pulse = prev_t->pulse_at_frame (end_frame, _frame_rate);
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if (frame_pulse != prev_t->pulse()) {
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new_bpm = prev_t->beats_per_minute() * ((meter_pulse - prev_t->pulse()) / (frame_pulse - prev_t->pulse()));
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if (start_pulse != prev_t->pulse()) {
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new_bpm = prev_t->beats_per_minute() * ((start_pulse - prev_t->pulse()) / (end_pulse - prev_t->pulse()));
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} else {
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new_bpm = prev_t->beats_per_minute();
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}
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@ -2840,7 +2843,7 @@ TempoMap::gui_dilate_tempo (const framepos_t& frame, const framepos_t& end_frame
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/* AudioTime */
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if (prev_to_prev_t && prev_to_prev_t->type() == TempoSection::Ramp) {
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new_bpm = prev_t->beats_per_minute() * ((frame - prev_t->frame())
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/ (double) (frame + prev_t_frame_contribution - prev_t->frame()));
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/ (double) ((frame + prev_t_frame_contribution) - prev_t->frame()));
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} else {
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/* prev_to_prev_t is irrelevant */
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@ -2852,38 +2855,33 @@ TempoMap::gui_dilate_tempo (const framepos_t& frame, const framepos_t& end_frame
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}
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}
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} else if (prev_t->c_func() < 0.0) {
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if (prev_to_prev_t && prev_to_prev_t->type() == TempoSection::Ramp) {
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new_bpm = prev_t->tempo_at_frame (prev_t->frame() + frame_contribution, _frame_rate) * (double) prev_t->note_type();
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} else {
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/* prev_to_prev_t is irrelevant */
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new_bpm = prev_t->tempo_at_frame (prev_t->frame() + fr_off, _frame_rate) * (double) prev_t->note_type();
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}
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const double end_minute = ((end_frame - prev_t->frame()) / (double) _frame_rate) / 60.0;
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const double end_tempo = prev_t->tempo_at_frame (end_frame, _frame_rate);
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const double end_minute = (((frame + prev_t_frame_contribution) - prev_t->frame()) / (double) _frame_rate) / 60.0;
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const double future_c = log (end_tempo / (new_bpm / (double) prev_t->note_type())) / end_minute;
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const double dtempo = (start_tempo) / (end_tempo);
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const double dframe = (frame) / (double) ((frame + prev_t_frame_contribution));
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/* limits - a bit clunky, but meh */
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if (future_c > -20.1 && future_c < 20.1) {
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new_bpm = prev_t->beats_per_minute() * ((frame - prev_t->frame())
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/ (double) ((frame + prev_t_frame_contribution) - prev_t->frame()));
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if (future_c > -10.1 && future_c < 10.1) {
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new_bpm = prev_t->beats_per_minute() * (dpulse / dtempo);
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} else {
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new_bpm = prev_t->beats_per_minute() * (dframe / dtempo);
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}
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} else if (prev_t->c_func() > 0.0) {
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if (prev_to_prev_t && prev_to_prev_t->type() == TempoSection::Ramp) {
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new_bpm = prev_t->tempo_at_frame (prev_t->frame() - frame_contribution, _frame_rate) * (double) prev_t->note_type();
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} else {
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/* prev_to_prev_t is irrelevant */
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new_bpm = prev_t->tempo_at_frame (prev_t->frame() - fr_off, _frame_rate) * (double) prev_t->note_type();
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}
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const double end_minute = ((end_frame - prev_t->frame()) / (double) _frame_rate) / 60.0;
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const double end_tempo = prev_t->tempo_at_frame (end_frame, _frame_rate);
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const double end_minute = (((frame + prev_t_frame_contribution) - prev_t->frame()) / (double) _frame_rate) / 60.0;
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const double future_c = log (end_tempo / (new_bpm / (double) prev_t->note_type())) / end_minute;
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const double dtempo = (end_tempo) / (start_tempo);
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const double dframe = (frame) / (double) ((frame + prev_t_frame_contribution));
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/* limits - a bit clunky, but meh */
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if (future_c > -20.1 && future_c < 20.1) {
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new_bpm = prev_t->beats_per_minute() * ((frame - prev_t->frame())
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/ (double) ((frame + prev_t_frame_contribution) - prev_t->frame()));
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if (future_c > -10.1 && future_c < 10.1) {
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new_bpm = prev_t->beats_per_minute() * (dpulse / dtempo);
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} else {
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new_bpm = prev_t->beats_per_minute() * (dframe / dtempo);
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}
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}
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