rename Tempo _beats_per_minute to _note_types_per_minute, provide pulse helpers.

- adds quarter_notes_per_minute(), note_divisions_per_minute (double)
	  pulses_per_minute() and frames_per_quarter_note()

	- this should be a no-op except for the use of tempo by
	  the vst callback which definitely uses quarter notes per minute.

	- the XML node for TempoSection named 'beats-per-minute'
	  has been renamed.
This commit is contained in:
nick_m 2016-11-06 05:14:20 +11:00
parent e52f90357e
commit 33e95a1577
18 changed files with 282 additions and 179 deletions

View file

@ -1316,7 +1316,8 @@ AudioClock::set_bbt (framepos_t when, framecnt_t offset, bool /*force*/)
TempoMetric m (_session->tempo_map().metric_at (pos));
sprintf (buf, "%-5.3f", _session->tempo_map().tempo_at_frame (pos).beats_per_minute());
sprintf (buf, "%-5.3f/%f", _session->tempo_map().tempo_at_frame (pos).note_types_per_minute(), m.tempo().note_type());
/* XXX this doesn't fit inside the container. */
_left_layout->set_markup (string_compose ("<span size=\"%1\">" TXTSPAN "%3</span> <span foreground=\"green\">%2</span></span>",
INFO_FONT_SIZE, buf, _("Tempo")));

View file

@ -274,7 +274,7 @@ AutomationController::set_freq_beats(double beats)
const ARDOUR::Session& session = _controllable->session();
const framepos_t pos = session.transport_frame();
const ARDOUR::Tempo& tempo = session.tempo_map().tempo_at_frame (pos);
const double bpm = tempo.beats_per_minute();
const double bpm = tempo.note_types_per_minute();
const double bps = bpm / 60.0;
const double freq = bps / beats;
_controllable->set_value(clamp(freq, desc.lower, desc.upper), Controllable::NoGroup);

View file

@ -3279,7 +3279,7 @@ TempoMarkerDrag::TempoMarkerDrag (Editor* e, ArdourCanvas::Item* i, bool c)
_marker = reinterpret_cast<TempoMarker*> (_item->get_data ("marker"));
_real_section = &_marker->tempo();
_movable = _real_section->movable();
_grab_bpm = _real_section->beats_per_minute();
_grab_bpm = _real_section->note_types_per_minute();
assert (_marker);
}
@ -3312,7 +3312,7 @@ TempoMarkerDrag::motion (GdkEvent* event, bool first_move)
// mvc drag - create a dummy marker to catch events, hide it.
char name[64];
snprintf (name, sizeof (name), "%.2f", _marker->tempo().beats_per_minute());
snprintf (name, sizeof (name), "%.2f", _marker->tempo().note_types_per_minute());
TempoSection section (_marker->tempo());
@ -3443,8 +3443,8 @@ BBTRulerDrag::start_grab (GdkEvent* event, Gdk::Cursor* cursor)
_tempo = const_cast<TempoSection*> (&map.tempo_section_at_frame (raw_grab_frame()));
ostringstream sstr;
sstr << "^" << fixed << setprecision(3) << map.tempo_at_frame (adjusted_current_frame (event)).beats_per_minute() << "\n";
sstr << "<" << fixed << setprecision(3) << _tempo->beats_per_minute();
sstr << "^" << fixed << setprecision(3) << map.tempo_at_frame (adjusted_current_frame (event)).note_types_per_minute() << "\n";
sstr << "<" << fixed << setprecision(3) << _tempo->note_types_per_minute();
show_verbose_cursor_text (sstr.str());
finished (event, false);
}
@ -3497,8 +3497,8 @@ BBTRulerDrag::motion (GdkEvent* event, bool first_move)
_editor->session()->tempo_map().gui_dilate_tempo (_tempo, map.frame_at_quarter_note (_grab_qn), pf);
}
ostringstream sstr;
sstr << "^" << fixed << setprecision(3) << map.tempo_at_frame (pf).beats_per_minute() << "\n";
sstr << "<" << fixed << setprecision(3) << _tempo->beats_per_minute();
sstr << "^" << fixed << setprecision(3) << map.tempo_at_frame (pf).note_types_per_minute() << "\n";
sstr << "<" << fixed << setprecision(3) << _tempo->note_types_per_minute();
show_verbose_cursor_text (sstr.str());
}

View file

@ -1404,7 +1404,7 @@ Editor::toggle_marker_lock_style ()
} else if (tm) {
TempoSection* tsp = &tm->tempo();
const Tempo tempo (tsp->beats_per_minute());
const Tempo tempo (tsp->note_types_per_minute(), tsp->note_type());
const double pulse = tsp->pulse();
const framepos_t frame = tsp->frame();
const TempoSection::Type type = tsp->type();
@ -1431,7 +1431,7 @@ Editor::toggle_tempo_type ()
if (tm) {
TempoSection* tsp = &tm->tempo();
const Tempo tempo (tsp->beats_per_minute(), tsp->note_type());
const Tempo tempo (tsp->note_types_per_minute(), tsp->note_type());
const double pulse = tsp->pulse();
const framepos_t frame = tsp->frame();
const TempoSection::Type type = (tsp->type() == TempoSection::Ramp) ? TempoSection::Constant : TempoSection::Ramp;

View file

@ -100,13 +100,13 @@ Editor::draw_metric_marks (const Metrics& metrics)
}
} else if ((ts = dynamic_cast<const TempoSection*>(*i)) != 0) {
if (UIConfiguration::instance().get_allow_non_quarter_pulse()) {
snprintf (buf, sizeof (buf), "%.3f/%.0f", ts->beats_per_minute(), ts->note_type());
snprintf (buf, sizeof (buf), "%.3f/%.0f", ts->note_types_per_minute(), ts->note_type());
} else {
snprintf (buf, sizeof (buf), "%.3f", ts->beats_per_minute());
snprintf (buf, sizeof (buf), "%.3f", ts->note_types_per_minute());
}
max_tempo = max (max_tempo, ts->beats_per_minute());
min_tempo = min (min_tempo, ts->beats_per_minute());
max_tempo = max (max_tempo, ts->note_types_per_minute());
min_tempo = min (min_tempo, ts->note_types_per_minute());
tempo_curves.push_back (new TempoCurve (*this, *tempo_group, UIConfiguration::instance().color ("tempo curve"),
*(const_cast<TempoSection*>(ts)), ts->frame(), false));
@ -147,7 +147,7 @@ Editor::draw_metric_marks (const Metrics& metrics)
TempoMarker* tempo_marker;
if ((tempo_marker = dynamic_cast<TempoMarker*> (*x)) != 0) {
tempo_marker->update_height_mark ((tempo_marker->tempo().beats_per_minute() - min_tempo) / max (10.0, max_tempo - min_tempo));
tempo_marker->update_height_mark ((tempo_marker->tempo().note_types_per_minute() - min_tempo) / max (10.0, max_tempo - min_tempo));
}
}
}
@ -208,11 +208,17 @@ Editor::marker_position_changed ()
if ((ts = &tempo_marker->tempo()) != 0) {
tempo_marker->set_position (ts->frame ());
char buf[64];
snprintf (buf, sizeof (buf), "%.3f", ts->beats_per_minute());
if (UIConfiguration::instance().get_allow_non_quarter_pulse()) {
snprintf (buf, sizeof (buf), "%.3f/%.0f", ts->note_types_per_minute(), ts->note_type());
} else {
snprintf (buf, sizeof (buf), "%.3f", ts->note_types_per_minute());
}
tempo_marker->set_name (buf);
max_tempo = max (max_tempo, ts->beats_per_minute());
min_tempo = min (min_tempo, ts->beats_per_minute());
max_tempo = max (max_tempo, ts->note_types_per_minute());
min_tempo = min (min_tempo, ts->note_types_per_minute());
}
}
if ((meter_marker = dynamic_cast<MeterMarker*> (*x)) != 0) {
@ -248,7 +254,7 @@ Editor::marker_position_changed ()
for (Marks::iterator x = metric_marks.begin(); x != metric_marks.end(); ++x) {
TempoMarker* tempo_marker;
if ((tempo_marker = dynamic_cast<TempoMarker*> (*x)) != 0) {
tempo_marker->update_height_mark ((tempo_marker->tempo().beats_per_minute() - min_tempo) / max (max_tempo - min_tempo, 10.0));
tempo_marker->update_height_mark ((tempo_marker->tempo().note_types_per_minute() - min_tempo) / max (max_tempo - min_tempo, 10.0));
}
}

View file

@ -26,7 +26,7 @@ void TempoCurve::setup_sizes(const double timebar_height)
{
curve_height = floor (timebar_height) - 2.5;
}
/* ignores Tempo note type - only note_types_per_minute is potentially curved */
TempoCurve::TempoCurve (PublicEditor& ed, ArdourCanvas::Container& parent, guint32 rgba, ARDOUR::TempoSection& temp, framepos_t frame, bool handle_events)
: editor (ed)
@ -34,8 +34,8 @@ TempoCurve::TempoCurve (PublicEditor& ed, ArdourCanvas::Container& parent, guint
, _curve (0)
, _shown (false)
, _color (rgba)
, _min_tempo (temp.beats_per_minute())
, _max_tempo (temp.beats_per_minute())
, _min_tempo (temp.note_types_per_minute())
, _max_tempo (temp.note_types_per_minute())
, _tempo (temp)
{
@ -44,12 +44,12 @@ TempoCurve::TempoCurve (PublicEditor& ed, ArdourCanvas::Container& parent, guint
group = new ArdourCanvas::Container (&parent, ArdourCanvas::Duple (unit_position, 1));
#ifdef CANVAS_DEBUG
group->name = string_compose ("TempoCurve::group for %1", _tempo.beats_per_minute());
group->name = string_compose ("TempoCurve::group for %1", _tempo.note_types_per_minute());
#endif
_curve = new ArdourCanvas::FramedCurve (group);
#ifdef CANVAS_DEBUG
_curve->name = string_compose ("TempoCurve::curve for %1", _tempo.beats_per_minute());
_curve->name = string_compose ("TempoCurve::curve for %1", _tempo.note_types_per_minute());
#endif
_curve->set_points_per_segment (3);
points = new ArdourCanvas::Points ();
@ -113,14 +113,14 @@ TempoCurve::set_position (framepos_t frame, framepos_t end_frame)
points->push_back (ArdourCanvas::Duple (0.0, curve_height));
if (end_frame == (framepos_t) UINT32_MAX) {
const double tempo_at = _tempo.beats_per_minute();
const double tempo_at = _tempo.note_types_per_minute();
const double y_pos = (curve_height) - (((tempo_at - _min_tempo) / (_max_tempo - _min_tempo)) * curve_height);
points->push_back (ArdourCanvas::Duple (0.0, y_pos));
points->push_back (ArdourCanvas::Duple (ArdourCanvas::COORD_MAX - 5.0, y_pos));
} else if (_tempo.type() == ARDOUR::TempoSection::Constant) {
const double tempo_at = _tempo.beats_per_minute();
const double tempo_at = _tempo.note_types_per_minute();
const double y_pos = (curve_height) - (((tempo_at - _min_tempo) / (_max_tempo - _min_tempo)) * curve_height);
points->push_back (ArdourCanvas::Duple (0.0, y_pos));

View file

@ -48,7 +48,7 @@ TempoDialog::TempoDialog (TempoMap& map, framepos_t frame, const string&)
Tempo tempo (map.tempo_at_frame (frame));
Timecode::BBT_Time when (map.bbt_at_frame (frame));
init (when, tempo.beats_per_minute(), tempo.note_type(), TempoSection::Constant, true, MusicTime);
init (when, tempo.note_types_per_minute(), tempo.note_type(), TempoSection::Constant, true, MusicTime);
}
TempoDialog::TempoDialog (TempoMap& map, TempoSection& section, const string&)
@ -63,7 +63,7 @@ TempoDialog::TempoDialog (TempoMap& map, TempoSection& section, const string&)
, tap_tempo_button (_("Tap tempo"))
{
Timecode::BBT_Time when (map.bbt_at_frame (section.frame()));
init (when, section.beats_per_minute(), section.note_type(), section.type(), section.movable(), section.position_lock_style());
init (when, section.note_types_per_minute(), section.note_type(), section.type(), section.movable(), section.position_lock_style());
}
void

View file

@ -77,11 +77,11 @@ TempoLines::draw_ticks (std::vector<ARDOUR::TempoMap::BBTPoint>& grid,
if (grid.begin()->c != 0.0) {
const double beat_divisions = (l / ((double) divisions)) * (grid.begin()->tempo.note_type() / grid.begin()->meter.note_divisor());
const double time_at_division = log (((grid.begin()->c * (beat_divisions)) /
grid.begin()->tempo.beats_per_minute()) + 1) / grid.begin()->c;
grid.begin()->tempo.note_types_per_minute()) + 1) / grid.begin()->c;
f = grid.begin()->frame + (framecnt_t) floor ((time_at_division * 60.0 * frame_rate) + 0.5);
} else {
const double fpb = grid.begin()->tempo.frames_per_beat (frame_rate)
const double fpb = grid.begin()->tempo.frames_per_note_type (frame_rate)
* (grid.begin()->tempo.note_type() / grid.begin()->meter.note_divisor());
f = grid.begin()->frame + (l * (fpb / (double) divisions));

View file

@ -54,25 +54,32 @@ class LIBARDOUR_API Tempo {
* @param type Note Type (default `4': quarter note)
*/
Tempo (double npm, double type=4.0) // defaulting to quarter note
: _beats_per_minute (npm), _note_type(type) {}
: _note_types_per_minute (npm), _note_type(type) {}
/*
note types per minute.
*/
double beats_per_minute () const { return _beats_per_minute; }
void set_beats_per_minute (double bpm) { _beats_per_minute = bpm; }
double note_types_per_minute () const { return _note_types_per_minute; }
void set_note_types_per_minute (double npm) { _note_types_per_minute = npm; }
double note_type () const { return _note_type; }
/** audio samples per quarter note beat.
* this is only useful for constant tempo and should not be used.
* if you want an instantaneous value for this, use frames_per_beat_at() instead.
double note_divisions_per_minute (double note_type) const { return _note_types_per_minute * (note_type / _note_type); }
double quarter_notes_per_minute () const { return note_divisions_per_minute (4.0); }
double pulses_per_minute () const { return note_divisions_per_minute (1.0); }
/** audio samples per note type.
* if you want an instantaneous value for this, use TempoMap::frames_per_quarter_note_at() instead.
* @param sr samplerate
*/
double frames_per_beat (framecnt_t sr) const {
return (60.0 * sr) / _beats_per_minute;
double frames_per_note_type (framecnt_t sr) const {
return (60.0 * sr) / _note_types_per_minute;
}
/** audio samples per quarter note.
* if you want an instantaneous value for this, use TempoMap::frames_per_quarter_note_at() instead.
* @param sr samplerate
*/
double frames_per_quarter_note (framecnt_t sr) const {
return (60.0 * sr) / quarter_notes_per_minute ();
}
protected:
double _beats_per_minute;
double _note_types_per_minute;
double _note_type;
};
@ -313,7 +320,7 @@ class LIBARDOUR_API TempoMap : public PBD::StatefulDestructible
BBTPoint (const MeterSection& m, const Tempo& t, framepos_t f,
uint32_t b, uint32_t e, double func_c)
: frame (f), meter (m.divisions_per_bar(), m.note_divisor()), tempo (t.beats_per_minute(), t.note_type()), c (func_c), bar (b), beat (e) {}
: frame (f), meter (m.divisions_per_bar(), m.note_divisor()), tempo (t.note_types_per_minute(), t.note_type()), c (func_c), bar (b), beat (e) {}
Timecode::BBT_Time bbt() const { return Timecode::BBT_Time (bar, beat, 0); }
operator Timecode::BBT_Time() const { return bbt(); }
@ -332,8 +339,8 @@ class LIBARDOUR_API TempoMap : public PBD::StatefulDestructible
static const Tempo& default_tempo() { return _default_tempo; }
static const Meter& default_meter() { return _default_meter; }
/* because tempos may be ramped, this is only valid for the instant requested.*/
double frames_per_beat_at (const framepos_t&, const framecnt_t& sr) const;
/* because tempi may be ramped, this is only valid for the instant requested.*/
double frames_per_quarter_note_at (const framepos_t&, const framecnt_t& sr) const;
const TempoSection& tempo_section_at_frame (framepos_t frame) const;
const MeterSection& meter_section_at_frame (framepos_t frame) const;

View file

@ -1370,8 +1370,10 @@ LuaBindings::common (lua_State* L)
.beginClass <Tempo> ("Tempo")
.addConstructor <void (*) (double, double)> ()
.addFunction ("note_type", &Tempo::note_type)
.addFunction ("beats_per_minute", &Tempo::beats_per_minute)
.addFunction ("frames_per_beat", &Tempo::frames_per_beat)
.addFunction ("note_types_per_minute", &Tempo::note_types_per_minute)
.addFunction ("quarter_notes_per_minute", &Tempo::quarter_notes_per_minute)
.addFunction ("frames_per_quarter_note", &Tempo::frames_per_quarter_note)
.addFunction ("frames_per_note_type", &Tempo::frames_per_note_type)
.endClass ()
.beginClass <Meter> ("Meter")

View file

@ -2494,7 +2494,7 @@ LV2Plugin::connect_and_run(BufferSet& bufs,
}
if (_bpm_control_port) {
*_bpm_control_port = tmap.tempo_at_frame (start).beats_per_minute();
*_bpm_control_port = tmap.tempo_at_frame (start).note_types_per_minute();
}
#ifdef LV2_EXTENDED
@ -2566,7 +2566,7 @@ LV2Plugin::connect_and_run(BufferSet& bufs,
if (valid && (flags & PORT_INPUT)) {
if ((flags & PORT_POSITION)) {
Timecode::BBT_Time bbt (tmap.bbt_at_frame (start));
double bpm = tmap.tempo_at_frame (start).beats_per_minute();
double bpm = tmap.tempo_at_frame (start).note_types_per_minute();
double beatpos = (bbt.bars - 1) * tmetric.meter().divisions_per_bar()
+ (bbt.beats - 1)
+ (bbt.ticks / Timecode::BBT_Time::ticks_per_beat);
@ -2608,7 +2608,7 @@ LV2Plugin::connect_and_run(BufferSet& bufs,
tmetric.set_metric(metric);
Timecode::BBT_Time bbt;
bbt = tmap.bbt_at_frame (metric->frame());
double bpm = tmap.tempo_at_frame (start/*XXX*/).beats_per_minute();
double bpm = tmap.tempo_at_frame (start/*XXX*/).note_types_per_minute();
write_position(&_impl->forge, _ev_buffers[port_index],
tmetric, bbt, speed, bpm,
metric->frame(),
@ -2881,7 +2881,7 @@ LV2Plugin::connect_and_run(BufferSet& bufs,
* so it needs to be realative to that.
*/
TempoMetric t = tmap.metric_at(start);
_current_bpm = tmap.tempo_at_frame (start).beats_per_minute();
_current_bpm = tmap.tempo_at_frame (start).note_types_per_minute();
Timecode::BBT_Time bbt (tmap.bbt_at_frame (start));
double beatpos = (bbt.bars - 1) * t.meter().divisions_per_bar()
+ (bbt.beats - 1)

View file

@ -82,11 +82,7 @@ MIDIClock_Slave::rebind (MidiPort& port)
void
MIDIClock_Slave::calculate_one_ppqn_in_frames_at(framepos_t time)
{
const Tempo& current_tempo = session->tempo_map().tempo_at_frame (time);
double const frames_per_beat = session->tempo_map().frames_per_beat_at (time, session->frame_rate());
double quarter_notes_per_beat = 4.0 / current_tempo.note_type();
double frames_per_quarter_note = frames_per_beat / quarter_notes_per_beat;
const double frames_per_quarter_note = session->tempo_map().frames_per_quarter_note_at (time, session->frame_rate());
one_ppqn_in_frames = frames_per_quarter_note / double (ppqn);
// DEBUG_TRACE (DEBUG::MidiClock, string_compose ("at %1, one ppqn = %2\n", time, one_ppqn_in_frames));

View file

@ -208,7 +208,7 @@ intptr_t Session::vst_callback (
if (value & (kVstTempoValid)) {
const Tempo& t (session->tempo_map().tempo_at_frame (now));
timeinfo->tempo = t.beats_per_minute ();
timeinfo->tempo = t.quarter_notes_per_minute ();
newflags |= (kVstTempoValid);
}
if (value & (kVstTimeSigValid)) {
@ -333,7 +333,7 @@ intptr_t Session::vst_callback (
// returns tempo (in bpm * 10000) at sample frame location passed in <value>
if (session) {
const Tempo& t (session->tempo_map().tempo_at_frame (value));
return t.beats_per_minute() * 1000;
return t.quarter_notes_per_minute() * 1000;
} else {
return 0;
}

View file

@ -71,7 +71,7 @@ Meter::frames_per_grid (const Tempo& tempo, framecnt_t sr) const
The return value IS NOT interpretable in terms of "beats".
*/
return (60.0 * sr) / (tempo.beats_per_minute() * (_note_type/tempo.note_type()));
return (60.0 * sr) / (tempo.note_types_per_minute() * (_note_type/tempo.note_type()));
}
double
@ -97,6 +97,7 @@ TempoSection::TempoSection (const XMLNode& node, framecnt_t sample_rate)
double pulse;
uint32_t frame;
double minute;
bool had_beats_per_minute = false;
_legacy_bbt = BBT_Time (0, 0, 0);
@ -136,13 +137,23 @@ TempoSection::TempoSection (const XMLNode& node, framecnt_t sample_rate)
}
}
if ((prop = node.property ("beats-per-minute")) == 0) {
error << _("TempoSection XML node has no \"beats-per-minute\" property") << endmsg;
/* replace old beats-per-minute with note-types-per-minute */
if ((prop = node.property ("beats-per-minute")) != 0) {
info << _("Renaming legacy \"beats-per-minute\" XML node to note-types-per-minute") << endmsg;
if (sscanf (prop->value().c_str(), "%lf", &_note_types_per_minute) != 1 || _note_types_per_minute < 0.0) {
error << _("TempoSection XML node has an illegal \"beats-per-minutee\" value") << endmsg;
throw failed_constructor();
}
had_beats_per_minute = true;
}
if (sscanf (prop->value().c_str(), "%lf", &_beats_per_minute) != 1 || _beats_per_minute < 0.0) {
error << _("TempoSection XML node has an illegal \"beats_per_minute\" value") << endmsg;
if ((prop = node.property ("note-types-per-minute")) != 0) {
if (sscanf (prop->value().c_str(), "%lf", &_note_types_per_minute) != 1 || _note_types_per_minute < 0.0) {
error << _("TempoSection XML node has an illegal \"note-types-per-minute\" value") << endmsg;
throw failed_constructor();
}
} else if (!had_beats_per_minute) {
error << _("TempoSection XML node has no \"note-types-per-minute\" or \"beats-per-minute\" property") << endmsg;
throw failed_constructor();
}
@ -206,8 +217,8 @@ TempoSection::get_state() const
root->add_property ("frame", buf);
snprintf (buf, sizeof (buf), "%lf", minute());
root->add_property ("minute", buf);
snprintf (buf, sizeof (buf), "%lf", _beats_per_minute);
root->add_property ("beats-per-minute", buf);
snprintf (buf, sizeof (buf), "%lf", _note_types_per_minute);
root->add_property ("note-types-per-minute", buf);
snprintf (buf, sizeof (buf), "%lf", _note_type);
root->add_property ("note-type", buf);
snprintf (buf, sizeof (buf), "%s", movable()?"yes":"no");
@ -234,7 +245,7 @@ TempoSection::tempo_at_minute (const double& m) const
{
if (_type == Constant || _c_func == 0.0) {
return beats_per_minute();
return note_types_per_minute();
}
return _tempo_at_time (m - minute());
@ -246,13 +257,13 @@ TempoSection::tempo_at_minute (const double& m) const
note that the tempo map may have multiple such values.
*/
double
TempoSection::minute_at_tempo (const double& bpm, const double& p) const
TempoSection::minute_at_tempo (const double& npm, const double& p) const
{
if (_type == Constant || _c_func == 0.0) {
return (((p - pulse()) * note_type()) / beats_per_minute()) + minute();
return ((p - pulse()) / pulses_per_minute()) + minute();
}
return _time_at_tempo (bpm) + minute();
return _time_at_tempo (npm) + minute();
}
/** returns the tempo in note types per minute at the supplied pulse.
@ -262,7 +273,7 @@ TempoSection::tempo_at_pulse (const double& p) const
{
if (_type == Constant || _c_func == 0.0) {
return beats_per_minute();
return note_types_per_minute();
}
return _tempo_at_pulse (p - pulse());
@ -273,14 +284,14 @@ TempoSection::tempo_at_pulse (const double& p) const
note that the session tempo map may have multiple locations where a given tempo occurs.
*/
double
TempoSection::pulse_at_tempo (const double& bpm, const double& m) const
TempoSection::pulse_at_tempo (const double& npm, const double& m) const
{
if (_type == Constant || _c_func == 0.0) {
const double pulses = (((m - minute()) * beats_per_minute()) / note_type()) + pulse();
const double pulses = ((m - minute()) * pulses_per_minute()) + pulse();
return pulses;
}
return _pulse_at_tempo (bpm) + pulse();
return _pulse_at_tempo (npm) + pulse();
}
/** returns the pulse at the supplied session-relative minute.
@ -289,7 +300,7 @@ double
TempoSection::pulse_at_minute (const double& m) const
{
if (_type == Constant || _c_func == 0.0) {
return (((m - minute()) * beats_per_minute()) / _note_type) + pulse();
return ((m - minute()) * pulses_per_minute()) + pulse();
}
return _pulse_at_time (m - minute()) + pulse();
@ -301,7 +312,7 @@ double
TempoSection::minute_at_pulse (const double& p) const
{
if (_type == Constant || _c_func == 0.0) {
return (((p - pulse()) * note_type()) / beats_per_minute()) + minute();
return ((p - pulse()) / pulses_per_minute()) + minute();
}
return _time_at_pulse (p - pulse()) + minute();
@ -382,82 +393,83 @@ https://www.zhdk.ch/fileadmin/data_subsites/data_icst/Downloads/Timegrid/ICST_Te
*/
/*
compute this ramp's function constant from some tempo-pulse point
end tempo (in note types per minute)
duration (pulses into global start) of some other position.
/** compute this ramp's function constant from some tempo-pulse point
* @param end_npm end tempo (in note types per minute)
* @param end_pulse duration (pulses into global start) of some other position.
* @return the calculated function constant
*/
double
TempoSection::compute_c_func_pulse (const double& end_bpm, const double& end_pulse) const
TempoSection::compute_c_func_pulse (const double& end_npm, const double& end_pulse) const
{
double const log_tempo_ratio = log (end_bpm / beats_per_minute());
return (beats_per_minute() * expm1 (log_tempo_ratio)) / ((end_pulse - pulse()) * _note_type);
double const log_tempo_ratio = log (end_npm / note_types_per_minute());
return (note_types_per_minute() * expm1 (log_tempo_ratio)) / ((end_pulse - pulse()) * _note_type);
}
/* compute the function constant from some tempo-time point.
tempo (note types/min.)
distance (in minutes) from session origin
/** compute the function constant from some tempo-time point.
* @param end_npm tempo (note types/min.)
* @param end_minute distance (in minutes) from session origin
* @return the calculated function constant
*/
double
TempoSection::compute_c_func_minute (const double& end_bpm, const double& end_minute) const
TempoSection::compute_c_func_minute (const double& end_npm, const double& end_minute) const
{
return c_func (end_bpm, end_minute - minute());
return c_func (end_npm, end_minute - minute());
}
/* position function */
double
TempoSection::a_func (double end_bpm, double c_func) const
TempoSection::a_func (double end_npm, double c_func) const
{
return log (end_bpm / beats_per_minute()) / c_func;
return log (end_npm / note_types_per_minute()) / c_func;
}
/*function constant*/
double
TempoSection::c_func (double end_bpm, double end_time) const
TempoSection::c_func (double end_npm, double end_time) const
{
return log (end_bpm / beats_per_minute()) / end_time;
return log (end_npm / note_types_per_minute()) / end_time;
}
/* tempo in note types per minute at time in minutes */
double
TempoSection::_tempo_at_time (const double& time) const
{
return exp (_c_func * time) * beats_per_minute();
return exp (_c_func * time) * note_types_per_minute();
}
/* time in minutes at tempo in note types per minute */
double
TempoSection::_time_at_tempo (const double& tempo) const
{
return log (tempo / beats_per_minute()) / _c_func;
return log (tempo / note_types_per_minute()) / _c_func;
}
/* pulse at tempo in note types per minute */
double
TempoSection::_pulse_at_tempo (const double& tempo) const
{
return ((tempo - beats_per_minute()) / _c_func) / _note_type;
return ((tempo - note_types_per_minute()) / _c_func) / _note_type;
}
/* tempo in note types per minute at pulse */
double
TempoSection::_tempo_at_pulse (const double& pulse) const
{
return (pulse * _note_type * _c_func) + beats_per_minute();
return (pulse * _note_type * _c_func) + note_types_per_minute();
}
/* pulse at time in minutes */
double
TempoSection::_pulse_at_time (const double& time) const
{
return expm1 (_c_func * time) * (beats_per_minute() / (_c_func * _note_type));
return (expm1 (_c_func * time) * (note_types_per_minute() / _c_func)) / _note_type;
}
/* time in minutes at pulse */
double
TempoSection::_time_at_pulse (const double& pulse) const
{
return log1p ((_c_func * pulse * _note_type) / beats_per_minute()) / _c_func;
return log1p ((_c_func * pulse * _note_type) / note_types_per_minute()) / _c_func;
}
/***********************************************************************/
@ -618,7 +630,7 @@ MeterSection::get_state() const
TempoSection - translates between time, musical pulse and tempo.
has a musical location in whole notes (pulses).
has a time location in minutes.
Note that 'beats' in Tempo::beats_per_minute() are in fact note types per minute.
Note that 'beats' in Tempo::note_types_per_minute() are in fact note types per minute.
(In the rest of tempo map,'beat' usually refers to accumulated BBT beats (pulse and meter based).
MeterSection - translates between BBT, meter-based beat and musical pulse.
@ -703,7 +715,7 @@ TempoMap::TempoMap (framecnt_t fr)
_frame_rate = fr;
BBT_Time start (1, 1, 0);
TempoSection *t = new TempoSection (0.0, 0.0, _default_tempo.beats_per_minute(), _default_tempo.note_type(), TempoSection::Ramp, AudioTime, fr);
TempoSection *t = new TempoSection (0.0, 0.0, _default_tempo.note_types_per_minute(), _default_tempo.note_type(), TempoSection::Ramp, AudioTime, fr);
MeterSection *m = new MeterSection (0.0, 0.0, 0.0, start, _default_meter.divisions_per_bar(), _default_meter.note_divisor(), AudioTime, fr);
t->set_movable (false);
@ -1005,7 +1017,7 @@ TempoSection*
TempoMap::add_tempo_locked (const Tempo& tempo, double pulse, double minute
, TempoSection::Type type, PositionLockStyle pls, bool recompute, bool locked_to_meter)
{
TempoSection* t = new TempoSection (pulse, minute, tempo.beats_per_minute(), tempo.note_type(), type, pls, _frame_rate);
TempoSection* t = new TempoSection (pulse, minute, tempo.note_types_per_minute(), tempo.note_type(), type, pls, _frame_rate);
t->set_locked_to_meter (locked_to_meter);
bool solved = false;
@ -1126,9 +1138,9 @@ TempoMap::add_meter_locked (const Meter& meter, double beat, const BBT_Time& whe
}
void
TempoMap::change_initial_tempo (double beats_per_minute, double note_type)
TempoMap::change_initial_tempo (double note_types_per_minute, double note_type)
{
Tempo newtempo (beats_per_minute, note_type);
Tempo newtempo (note_types_per_minute, note_type);
TempoSection* t;
for (Metrics::iterator i = _metrics.begin(); i != _metrics.end(); ++i) {
@ -1148,9 +1160,9 @@ TempoMap::change_initial_tempo (double beats_per_minute, double note_type)
}
void
TempoMap::change_existing_tempo_at (framepos_t where, double beats_per_minute, double note_type)
TempoMap::change_existing_tempo_at (framepos_t where, double note_types_per_minute, double note_type)
{
Tempo newtempo (beats_per_minute, note_type);
Tempo newtempo (note_types_per_minute, note_type);
TempoSection* prev;
TempoSection* first;
@ -1298,14 +1310,14 @@ TempoMap::recompute_tempi (Metrics& metrics)
}
if (prev_t) {
if (t->position_lock_style() == AudioTime) {
prev_t->set_c_func (prev_t->compute_c_func_minute (t->beats_per_minute(), t->minute()));
prev_t->set_c_func (prev_t->compute_c_func_minute (t->note_types_per_minute(), t->minute()));
if (!t->locked_to_meter()) {
t->set_pulse (prev_t->pulse_at_tempo (t->beats_per_minute(), t->minute()));
t->set_pulse (prev_t->pulse_at_tempo (t->note_types_per_minute(), t->minute()));
}
} else {
prev_t->set_c_func (prev_t->compute_c_func_pulse (t->beats_per_minute(), t->pulse()));
t->set_minute (prev_t->minute_at_tempo (t->beats_per_minute(), t->pulse()));
prev_t->set_c_func (prev_t->compute_c_func_pulse (t->note_types_per_minute(), t->pulse()));
t->set_minute (prev_t->minute_at_tempo (t->note_types_per_minute(), t->pulse()));
}
}
@ -1602,7 +1614,7 @@ TempoMap::tempo_at_minute_locked (const Metrics& metrics, const double& minute)
}
}
const double ret = prev_t->beats_per_minute();
const double ret = prev_t->note_types_per_minute();
const Tempo ret_tempo (ret, prev_t->note_type ());
return ret_tempo;
@ -1625,7 +1637,7 @@ double
TempoMap::minute_at_tempo_locked (const Metrics& metrics, const Tempo& tempo) const
{
TempoSection* prev_t = 0;
const double tempo_bpm = tempo.beats_per_minute();
const double tempo_bpm = tempo.note_types_per_minute();
Metrics::const_iterator i;
@ -1638,14 +1650,14 @@ TempoMap::minute_at_tempo_locked (const Metrics& metrics, const Tempo& tempo) co
continue;
}
const double t_bpm = t->beats_per_minute();
const double t_bpm = t->note_types_per_minute();
if (t_bpm == tempo_bpm) {
return t->minute();
}
if (prev_t) {
const double prev_t_bpm = prev_t->beats_per_minute();
const double prev_t_bpm = prev_t->note_types_per_minute();
if ((t_bpm > tempo_bpm && prev_t_bpm < tempo_bpm) || (t_bpm < tempo_bpm && prev_t_bpm > tempo_bpm)) {
return prev_t->minute_at_tempo (tempo_bpm, prev_t->pulse());
@ -1681,7 +1693,7 @@ TempoMap::tempo_at_pulse_locked (const Metrics& metrics, const double& pulse) co
}
}
const double ret = prev_t->beats_per_minute();
const double ret = prev_t->note_types_per_minute();
const Tempo ret_tempo (ret, prev_t->note_type ());
return ret_tempo;
@ -1691,7 +1703,7 @@ double
TempoMap::pulse_at_tempo_locked (const Metrics& metrics, const Tempo& tempo) const
{
TempoSection* prev_t = 0;
const double tempo_bpm = tempo.beats_per_minute();
const double tempo_bpm = tempo.note_types_per_minute();
Metrics::const_iterator i;
@ -1704,14 +1716,14 @@ TempoMap::pulse_at_tempo_locked (const Metrics& metrics, const Tempo& tempo) con
continue;
}
const double t_bpm = t->beats_per_minute();
const double t_bpm = t->note_types_per_minute();
if (t_bpm == tempo_bpm) {
return t->pulse();
}
if (prev_t) {
const double prev_t_bpm = prev_t->beats_per_minute();
const double prev_t_bpm = prev_t->note_types_per_minute();
if ((t_bpm > tempo_bpm && prev_t_bpm < tempo_bpm) || (t_bpm < tempo_bpm && prev_t_bpm > tempo_bpm)) {
return prev_t->pulse_at_tempo (tempo_bpm, prev_t->minute());
@ -1822,7 +1834,7 @@ TempoMap::pulse_at_minute_locked (const Metrics& metrics, const double& minute)
}
/* treated as constant for this ts */
const double pulses_in_section = ((minute - prev_t->minute()) * prev_t->beats_per_minute()) / prev_t->note_type();
const double pulses_in_section = ((minute - prev_t->minute()) * prev_t->note_types_per_minute()) / prev_t->note_type();
return pulses_in_section + prev_t->pulse();
}
@ -1851,7 +1863,7 @@ TempoMap::minute_at_pulse_locked (const Metrics& metrics, const double& pulse) c
}
}
/* must be treated as constant, irrespective of _type */
double const dtime = ((pulse - prev_t->pulse()) * prev_t->note_type()) / prev_t->beats_per_minute();
double const dtime = ((pulse - prev_t->pulse()) * prev_t->note_type()) / prev_t->note_types_per_minute();
return dtime + prev_t->minute();
}
@ -2395,7 +2407,7 @@ TempoMap::check_solved (const Metrics& metrics) const
}
/* precision check ensures tempo and frames align.*/
if (t->frame() != frame_at_minute (prev_t->minute_at_tempo (t->beats_per_minute(), t->pulse()))) {
if (t->frame() != frame_at_minute (prev_t->minute_at_tempo (t->note_types_per_minute(), t->pulse()))) {
if (!t->locked_to_meter()) {
return false;
}
@ -2498,12 +2510,12 @@ TempoMap::solve_map_minute (Metrics& imaginary, TempoSection* section, const dou
continue;
}
if (t->position_lock_style() == MusicTime) {
prev_t->set_c_func (prev_t->compute_c_func_pulse (t->beats_per_minute(), t->pulse()));
t->set_minute (prev_t->minute_at_tempo (t->beats_per_minute(), t->pulse()));
prev_t->set_c_func (prev_t->compute_c_func_pulse (t->note_types_per_minute(), t->pulse()));
t->set_minute (prev_t->minute_at_tempo (t->note_types_per_minute(), t->pulse()));
} else {
prev_t->set_c_func (prev_t->compute_c_func_minute (t->beats_per_minute(), t->minute()));
prev_t->set_c_func (prev_t->compute_c_func_minute (t->note_types_per_minute(), t->minute()));
if (!t->locked_to_meter()) {
t->set_pulse (prev_t->pulse_at_tempo (t->beats_per_minute(), t->minute()));
t->set_pulse (prev_t->pulse_at_tempo (t->note_types_per_minute(), t->minute()));
}
}
}
@ -2512,9 +2524,9 @@ TempoMap::solve_map_minute (Metrics& imaginary, TempoSection* section, const dou
}
if (section_prev) {
section_prev->set_c_func (section_prev->compute_c_func_minute (section->beats_per_minute(), minute));
section_prev->set_c_func (section_prev->compute_c_func_minute (section->note_types_per_minute(), minute));
if (!section->locked_to_meter()) {
section->set_pulse (section_prev->pulse_at_tempo (section->beats_per_minute(), minute));
section->set_pulse (section_prev->pulse_at_tempo (section->note_types_per_minute(), minute));
}
}
@ -2566,12 +2578,12 @@ TempoMap::solve_map_pulse (Metrics& imaginary, TempoSection* section, const doub
continue;
}
if (t->position_lock_style() == MusicTime) {
prev_t->set_c_func (prev_t->compute_c_func_pulse (t->beats_per_minute(), t->pulse()));
t->set_minute (prev_t->minute_at_tempo (t->beats_per_minute(), t->pulse()));
prev_t->set_c_func (prev_t->compute_c_func_pulse (t->note_types_per_minute(), t->pulse()));
t->set_minute (prev_t->minute_at_tempo (t->note_types_per_minute(), t->pulse()));
} else {
prev_t->set_c_func (prev_t->compute_c_func_minute (t->beats_per_minute(), t->minute()));
prev_t->set_c_func (prev_t->compute_c_func_minute (t->note_types_per_minute(), t->minute()));
if (!t->locked_to_meter()) {
t->set_pulse (prev_t->pulse_at_tempo (t->beats_per_minute(), t->minute()));
t->set_pulse (prev_t->pulse_at_tempo (t->note_types_per_minute(), t->minute()));
}
}
}
@ -2580,8 +2592,8 @@ TempoMap::solve_map_pulse (Metrics& imaginary, TempoSection* section, const doub
}
if (section_prev) {
section_prev->set_c_func (section_prev->compute_c_func_pulse (section->beats_per_minute(), pulse));
section->set_minute (section_prev->minute_at_tempo (section->beats_per_minute(), pulse));
section_prev->set_c_func (section_prev->compute_c_func_pulse (section->note_types_per_minute(), pulse));
section->set_minute (section_prev->minute_at_tempo (section->note_types_per_minute(), pulse));
}
#if (0)
@ -3148,11 +3160,11 @@ TempoMap::gui_change_tempo (TempoSection* ts, const Tempo& bpm)
{
Glib::Threads::RWLock::WriterLock lm (lock);
TempoSection* tempo_copy = copy_metrics_and_point (_metrics, future_map, ts);
tempo_copy->set_beats_per_minute (bpm.beats_per_minute());
tempo_copy->set_note_types_per_minute (bpm.note_types_per_minute());
recompute_tempi (future_map);
if (check_solved (future_map)) {
ts->set_beats_per_minute (bpm.beats_per_minute());
ts->set_note_types_per_minute (bpm.note_types_per_minute());
recompute_map (_metrics);
can_solve = true;
}
@ -3233,18 +3245,18 @@ TempoMap::gui_dilate_tempo (TempoSection* ts, const framepos_t& frame, const fra
if (prev_to_prev_t && prev_to_prev_t->type() == TempoSection::Ramp) {
if (frame > prev_to_prev_t->frame() + min_dframe && (frame + prev_t_frame_contribution) > prev_to_prev_t->frame() + min_dframe) {
new_bpm = prev_t->beats_per_minute() * ((frame - prev_to_prev_t->frame())
new_bpm = prev_t->note_types_per_minute() * ((frame - prev_to_prev_t->frame())
/ (double) ((frame + prev_t_frame_contribution) - prev_to_prev_t->frame()));
} else {
new_bpm = prev_t->beats_per_minute();
new_bpm = prev_t->note_types_per_minute();
}
} else {
/* prev to prev is irrelevant */
if (start_pulse > prev_t->pulse() && end_pulse > prev_t->pulse()) {
new_bpm = prev_t->beats_per_minute() * ((start_pulse - prev_t->pulse()) / (end_pulse - prev_t->pulse()));
new_bpm = prev_t->note_types_per_minute() * ((start_pulse - prev_t->pulse()) / (end_pulse - prev_t->pulse()));
} else {
new_bpm = prev_t->beats_per_minute();
new_bpm = prev_t->note_types_per_minute();
}
}
} else {
@ -3252,18 +3264,18 @@ TempoMap::gui_dilate_tempo (TempoSection* ts, const framepos_t& frame, const fra
if (prev_to_prev_t && prev_to_prev_t->type() == TempoSection::Ramp) {
if (frame > prev_to_prev_t->frame() + min_dframe && end_frame > prev_to_prev_t->frame() + min_dframe) {
new_bpm = prev_t->beats_per_minute() * ((frame - prev_to_prev_t->frame())
new_bpm = prev_t->note_types_per_minute() * ((frame - prev_to_prev_t->frame())
/ (double) ((end_frame) - prev_to_prev_t->frame()));
} else {
new_bpm = prev_t->beats_per_minute();
new_bpm = prev_t->note_types_per_minute();
}
} else {
/* prev_to_prev_t is irrelevant */
if (frame > prev_t->frame() + min_dframe && end_frame > prev_t->frame() + min_dframe) {
new_bpm = prev_t->beats_per_minute() * ((frame - prev_t->frame()) / (double) (end_frame - prev_t->frame()));
new_bpm = prev_t->note_types_per_minute() * ((frame - prev_t->frame()) / (double) (end_frame - prev_t->frame()));
} else {
new_bpm = prev_t->beats_per_minute();
new_bpm = prev_t->note_types_per_minute();
}
}
}
@ -3286,7 +3298,7 @@ TempoMap::gui_dilate_tempo (TempoSection* ts, const framepos_t& frame, const fra
}
pulse_ratio = (start_pulse / end_pulse);
}
new_bpm = prev_t->beats_per_minute() * (pulse_ratio * frame_ratio);
new_bpm = prev_t->note_types_per_minute() * (pulse_ratio * frame_ratio);
}
/* don't clamp and proceed here.
@ -3297,12 +3309,12 @@ TempoMap::gui_dilate_tempo (TempoSection* ts, const framepos_t& frame, const fra
return;
}
new_bpm = min (new_bpm, (double) 1000.0);
prev_t->set_beats_per_minute (new_bpm);
prev_t->set_note_types_per_minute (new_bpm);
recompute_tempi (future_map);
recompute_meters (future_map);
if (check_solved (future_map)) {
ts->set_beats_per_minute (new_bpm);
ts->set_note_types_per_minute (new_bpm);
recompute_tempi (_metrics);
recompute_meters (_metrics);
}
@ -3837,7 +3849,7 @@ TempoMap::tempo_section_at_beat_locked (const Metrics& metrics, const double& be
do that stuff based on the beat_at_frame and frame_at_beat api
*/
double
TempoMap::frames_per_beat_at (const framepos_t& frame, const framecnt_t& sr) const
TempoMap::frames_per_quarter_note_at (const framepos_t& frame, const framecnt_t& sr) const
{
Glib::Threads::RWLock::ReaderLock lm (lock);
@ -3862,10 +3874,10 @@ TempoMap::frames_per_beat_at (const framepos_t& frame, const framecnt_t& sr) con
}
if (ts_after) {
return (60.0 * _frame_rate) / ts_at->tempo_at_minute (minute_at_frame (frame));
return (60.0 * _frame_rate) / ((ts_at->tempo_at_minute (minute_at_frame (frame)) / ts_at->note_type()) * 4.0);
}
/* must be treated as constant tempo */
return ts_at->frames_per_beat (_frame_rate);
return ts_at->frames_per_quarter_note (_frame_rate);
}
const MeterSection&
@ -4132,19 +4144,19 @@ TempoMap::dump (const Metrics& metrics, std::ostream& o) const
for (Metrics::const_iterator i = metrics.begin(); i != metrics.end(); ++i) {
if ((t = dynamic_cast<const TempoSection*>(*i)) != 0) {
o << "Tempo @ " << *i << t->beats_per_minute() << " BPM (pulse = 1/" << t->note_type()
o << "Tempo @ " << *i << t->note_types_per_minute() << " BPM (pulse = 1/" << t->note_type()
<< " type= " << enum_2_string (t->type()) << ") " << " at pulse= " << t->pulse()
<< " minute= " << t->minute() << " frame= " << t->frame() << " (movable? " << t->movable() << ')'
<< " pos lock: " << enum_2_string (t->position_lock_style()) << std::endl;
if (prev_t) {
o << std::setprecision (17) << " current : " << t->beats_per_minute()
o << std::setprecision (17) << " current : " << t->note_types_per_minute()
<< " | " << t->pulse() << " | " << t->frame() << " | " << t->minute() << std::endl;
o << " previous : " << prev_t->beats_per_minute()
o << " previous : " << prev_t->note_types_per_minute()
<< " | " << prev_t->pulse() << " | " << prev_t->frame() << " | " << prev_t->minute() << std::endl;
o << " calculated : " << prev_t->tempo_at_pulse (t->pulse())
<< " | " << prev_t->pulse_at_tempo (t->beats_per_minute(), t->minute())
<< " | " << frame_at_minute (prev_t->minute_at_tempo (t->beats_per_minute(), t->pulse()))
<< " | " << prev_t->minute_at_tempo (t->beats_per_minute(), t->pulse()) << std::endl;
<< " | " << prev_t->pulse_at_tempo (t->note_types_per_minute(), t->minute())
<< " | " << frame_at_minute (prev_t->minute_at_tempo (t->note_types_per_minute(), t->pulse()))
<< " | " << prev_t->minute_at_tempo (t->note_types_per_minute(), t->pulse()) << std::endl;
}
prev_t = t;
} else if ((m = dynamic_cast<const MeterSection*>(*i)) != 0) {
@ -4327,7 +4339,7 @@ operator<< (std::ostream& o, const Meter& m) {
std::ostream&
operator<< (std::ostream& o, const Tempo& t) {
return o << t.beats_per_minute() << " 1/" << t.note_type() << "'s per minute";
return o << t.note_types_per_minute() << " 1/" << t.note_type() << "'s per minute";
}
std::ostream&

View file

@ -85,23 +85,23 @@ TempoTest::recomputeMapTest48 ()
/* tempo - frame */
CPPUNIT_ASSERT_EQUAL (framepos_t (288e3), map.frame_at_tempo (240.0));
CPPUNIT_ASSERT_DOUBLES_EQUAL (240.0, map.tempo_at_frame (288e3).beats_per_minute(), 1e-17);
CPPUNIT_ASSERT_DOUBLES_EQUAL (120.0, map.tempo_at_frame (288e3 - 1).beats_per_minute(), 1e-17);
CPPUNIT_ASSERT_DOUBLES_EQUAL (240.0, map.tempo_at_frame (288e3).note_types_per_minute(), 1e-17);
CPPUNIT_ASSERT_DOUBLES_EQUAL (120.0, map.tempo_at_frame (288e3 - 1).note_types_per_minute(), 1e-17);
/* tempo - quarter note */
CPPUNIT_ASSERT_DOUBLES_EQUAL (240.0, map.tempo_at_quarter_note (24.0).beats_per_minute(), 1e-17);
CPPUNIT_ASSERT_DOUBLES_EQUAL (240.0, map.tempo_at_quarter_note (12.0).beats_per_minute(), 1e-17);
CPPUNIT_ASSERT_DOUBLES_EQUAL (120.0, map.tempo_at_quarter_note (6.0).beats_per_minute(), 1e-17);
CPPUNIT_ASSERT_DOUBLES_EQUAL (120.0, map.tempo_at_quarter_note (0.0).beats_per_minute(), 1e-17);
CPPUNIT_ASSERT_DOUBLES_EQUAL (240.0, map.tempo_at_quarter_note (24.0).note_types_per_minute(), 1e-17);
CPPUNIT_ASSERT_DOUBLES_EQUAL (240.0, map.tempo_at_quarter_note (12.0).note_types_per_minute(), 1e-17);
CPPUNIT_ASSERT_DOUBLES_EQUAL (120.0, map.tempo_at_quarter_note (6.0).note_types_per_minute(), 1e-17);
CPPUNIT_ASSERT_DOUBLES_EQUAL (120.0, map.tempo_at_quarter_note (0.0).note_types_per_minute(), 1e-17);
CPPUNIT_ASSERT_DOUBLES_EQUAL (12.0, map.quarter_note_at_tempo (240.0), 1e-17);
CPPUNIT_ASSERT_DOUBLES_EQUAL (0.0, map.quarter_note_at_tempo (120.0), 1e-17);
/* tempo - internal minute interface */
CPPUNIT_ASSERT_DOUBLES_EQUAL (240.0, map.tempo_at_minute_locked (map._metrics, 0.1).beats_per_minute(), 1e-17);
CPPUNIT_ASSERT_DOUBLES_EQUAL (240.0, map.tempo_at_minute_locked (map._metrics, 0.1).note_types_per_minute(), 1e-17);
CPPUNIT_ASSERT_DOUBLES_EQUAL (0.1, map.minute_at_tempo_locked (map._metrics, tempoB), 1e-17);
CPPUNIT_ASSERT_DOUBLES_EQUAL (240.0, map.tempo_at_pulse_locked (map._metrics, 3.0).beats_per_minute(), 1e-17);
CPPUNIT_ASSERT_DOUBLES_EQUAL (240.0, map.tempo_at_pulse_locked (map._metrics, 3.0).note_types_per_minute(), 1e-17);
CPPUNIT_ASSERT_DOUBLES_EQUAL (3.0, map.pulse_at_tempo_locked (map._metrics, tempoB), 1e-17);
}
@ -185,23 +185,23 @@ TempoTest::recomputeMapTest44 ()
/* tempo - frame */
CPPUNIT_ASSERT_EQUAL (framepos_t (264600), map.frame_at_tempo (tempoB));
CPPUNIT_ASSERT_DOUBLES_EQUAL (240.0, map.tempo_at_frame (264600).beats_per_minute(), 1e-17);
CPPUNIT_ASSERT_DOUBLES_EQUAL (120.0, map.tempo_at_frame (264600 - 1).beats_per_minute(), 1e-17);
CPPUNIT_ASSERT_DOUBLES_EQUAL (240.0, map.tempo_at_frame (264600).note_types_per_minute(), 1e-17);
CPPUNIT_ASSERT_DOUBLES_EQUAL (120.0, map.tempo_at_frame (264600 - 1).note_types_per_minute(), 1e-17);
/* tempo - quarter note */
CPPUNIT_ASSERT_DOUBLES_EQUAL (240.0, map.tempo_at_quarter_note (24.0).beats_per_minute(), 1e-17);
CPPUNIT_ASSERT_DOUBLES_EQUAL (240.0, map.tempo_at_quarter_note (12.0).beats_per_minute(), 1e-17);
CPPUNIT_ASSERT_DOUBLES_EQUAL (120.0, map.tempo_at_quarter_note (6.0).beats_per_minute(), 1e-17);
CPPUNIT_ASSERT_DOUBLES_EQUAL (120.0, map.tempo_at_quarter_note (0.0).beats_per_minute(), 1e-17);
CPPUNIT_ASSERT_DOUBLES_EQUAL (240.0, map.tempo_at_quarter_note (24.0).note_types_per_minute(), 1e-17);
CPPUNIT_ASSERT_DOUBLES_EQUAL (240.0, map.tempo_at_quarter_note (12.0).note_types_per_minute(), 1e-17);
CPPUNIT_ASSERT_DOUBLES_EQUAL (120.0, map.tempo_at_quarter_note (6.0).note_types_per_minute(), 1e-17);
CPPUNIT_ASSERT_DOUBLES_EQUAL (120.0, map.tempo_at_quarter_note (0.0).note_types_per_minute(), 1e-17);
CPPUNIT_ASSERT_DOUBLES_EQUAL (12.0, map.quarter_note_at_tempo (240.0), 1e-17);
CPPUNIT_ASSERT_DOUBLES_EQUAL (0.0, map.quarter_note_at_tempo (120.0), 1e-17);
/* tempo - internal minute interface */
CPPUNIT_ASSERT_DOUBLES_EQUAL (240.0, map.tempo_at_minute_locked (map._metrics, 0.1).beats_per_minute(), 1e-17);
CPPUNIT_ASSERT_DOUBLES_EQUAL (240.0, map.tempo_at_minute_locked (map._metrics, 0.1).note_types_per_minute(), 1e-17);
CPPUNIT_ASSERT_DOUBLES_EQUAL (0.1, map.minute_at_tempo_locked (map._metrics, tempoB), 1e-17);
CPPUNIT_ASSERT_DOUBLES_EQUAL (240.0, map.tempo_at_pulse_locked (map._metrics, 3.0).beats_per_minute(), 1e-17);
CPPUNIT_ASSERT_DOUBLES_EQUAL (240.0, map.tempo_at_pulse_locked (map._metrics, 3.0).note_types_per_minute(), 1e-17);
CPPUNIT_ASSERT_DOUBLES_EQUAL (3.0, map.pulse_at_tempo_locked (map._metrics, tempoB), 1e-17);
}
@ -395,7 +395,7 @@ TempoTest::rampTest48 ()
TempoSection& tA = map.first_tempo();
const TempoSection& tB = map.tempo_section_at_frame ((framepos_t) 60 * sampling_rate);
CPPUNIT_ASSERT_DOUBLES_EQUAL (1.0, tA.minute_at_tempo (tB.beats_per_minute(), 300.0), 1e-17);
CPPUNIT_ASSERT_DOUBLES_EQUAL (1.0, tA.minute_at_tempo (tB.note_types_per_minute(), 300.0), 1e-17);
CPPUNIT_ASSERT_DOUBLES_EQUAL (217.0, tA.tempo_at_minute (1.0), 1e-17);
/* note 1e-14 here. pulse is two derivatives away from time */
@ -457,7 +457,7 @@ TempoTest::rampTest44 ()
TempoSection& tA = map.first_tempo();
const TempoSection& tB = map.tempo_section_at_frame ((framepos_t) 60 * sampling_rate);
CPPUNIT_ASSERT_DOUBLES_EQUAL (1.0, tA.minute_at_tempo (tB.beats_per_minute(), 300.0), 1e-17);
CPPUNIT_ASSERT_DOUBLES_EQUAL (1.0, tA.minute_at_tempo (tB.note_types_per_minute(), 300.0), 1e-17);
CPPUNIT_ASSERT_DOUBLES_EQUAL (217.0, tA.tempo_at_minute (1.0), 1e-17);
/* note 1e-14 here. pulse is two derivatives away from time */
@ -554,3 +554,84 @@ TempoTest::tempoAtPulseTest ()
CPPUNIT_ASSERT_DOUBLES_EQUAL (160.0, tA->tempo_at_minute (tB->minute()), 1e-17);
CPPUNIT_ASSERT_DOUBLES_EQUAL (123.0, tB->tempo_at_minute (tC->minute()), 1e-17);
}
void
TempoTest::tempoFundamentalsTest ()
{
int const sampling_rate = 48000;
TempoMap map (sampling_rate);
Meter meterA (4, 8);
Tempo tempoA (120.0, 4.0);
Tempo tempoB (120.0, 8.0);
Tempo tempoC (120.0, 2.0);
Tempo tempoD (160.0, 2.0);
Tempo tempoE (123.0, 3.0);
map.replace_meter (map.first_meter(), meterA, BBT_Time (1, 1, 0), AudioTime);
map.replace_tempo (map.first_tempo(), tempoA, 0.0, 0, TempoSection::Constant, AudioTime);
map.add_tempo (tempoB, 20.0, 0, TempoSection::Constant, MusicTime);
map.add_tempo (tempoC, 30.0, 0, TempoSection::Constant, MusicTime);
map.add_tempo (tempoD, 40.0, 0, TempoSection::Constant, MusicTime);
map.add_tempo (tempoE, 50.0, 0, TempoSection::Constant, MusicTime);
TempoSection* tA = 0;
TempoSection* tB = 0;
TempoSection* tC = 0;
TempoSection* tD = 0;
TempoSection* tE = 0;
list<MetricSection*>::iterator i;
for (i = map._metrics.begin(); i != map._metrics.end(); ++i) {
TempoSection* t;
if ((t = dynamic_cast<TempoSection*> (*i)) != 0) {
if (!tA) {
tA = t;
continue;
}
if (!tB) {
tB = t;
continue;
}
if (!tC) {
tC = t;
continue;
}
if (!tD) {
tD = t;
continue;
}
if (!tE) {
tE = t;
continue;
}
}
}
CPPUNIT_ASSERT_DOUBLES_EQUAL (24000.0, tA->frames_per_quarter_note (sampling_rate), 1e-17);
CPPUNIT_ASSERT_DOUBLES_EQUAL (24000.0, tA->frames_per_note_type (sampling_rate), 1e-17);
CPPUNIT_ASSERT_DOUBLES_EQUAL (120.0, tA->quarter_notes_per_minute (), 1e-17);
CPPUNIT_ASSERT_DOUBLES_EQUAL (30.0, tA->pulses_per_minute (), 1e-17);
CPPUNIT_ASSERT_DOUBLES_EQUAL (48000.0, tB->frames_per_quarter_note (sampling_rate), 1e-17);
CPPUNIT_ASSERT_DOUBLES_EQUAL (24000.0, tB->frames_per_note_type (sampling_rate), 1e-17);
CPPUNIT_ASSERT_DOUBLES_EQUAL (60.0, tB->quarter_notes_per_minute (), 1e-17);
CPPUNIT_ASSERT_DOUBLES_EQUAL (15.0, tB->pulses_per_minute (), 1e-17);
CPPUNIT_ASSERT_DOUBLES_EQUAL (12000.0, tC->frames_per_quarter_note (sampling_rate), 1e-17);
CPPUNIT_ASSERT_DOUBLES_EQUAL (24000.0, tC->frames_per_note_type (sampling_rate), 1e-17);
CPPUNIT_ASSERT_DOUBLES_EQUAL (240.0, tC->quarter_notes_per_minute (), 1e-17);
CPPUNIT_ASSERT_DOUBLES_EQUAL (60.0, tC->pulses_per_minute (), 1e-17);
CPPUNIT_ASSERT_DOUBLES_EQUAL (9000.0, tD->frames_per_quarter_note (sampling_rate), 1e-17);
CPPUNIT_ASSERT_DOUBLES_EQUAL (18000.0, tD->frames_per_note_type (sampling_rate), 1e-17);
CPPUNIT_ASSERT_DOUBLES_EQUAL (320.0, tD->quarter_notes_per_minute (), 1e-17);
CPPUNIT_ASSERT_DOUBLES_EQUAL (80.0, tD->pulses_per_minute (), 1e-17);
CPPUNIT_ASSERT_DOUBLES_EQUAL (17560.975609756097, tE->frames_per_quarter_note (sampling_rate), 1e-17);
CPPUNIT_ASSERT_DOUBLES_EQUAL (23414.634146341465, tE->frames_per_note_type (sampling_rate), 1e-17);
CPPUNIT_ASSERT_DOUBLES_EQUAL (164.0, tE->quarter_notes_per_minute (), 1e-17);
CPPUNIT_ASSERT_DOUBLES_EQUAL (41.0, tE->pulses_per_minute (), 1e-17);
}

View file

@ -12,6 +12,7 @@ class TempoTest : public CppUnit::TestFixture
CPPUNIT_TEST (rampTest48);
CPPUNIT_TEST (rampTest44);
CPPUNIT_TEST (tempoAtPulseTest);
CPPUNIT_TEST (tempoFundamentalsTest);
CPPUNIT_TEST_SUITE_END ();
public:
@ -26,5 +27,6 @@ public:
void rampTest48 ();
void rampTest44 ();
void tempoAtPulseTest();
void tempoFundamentalsTest();
};

View file

@ -308,11 +308,7 @@ MidiClockTicker::tick (const framepos_t& /* transport_frame */, pframes_t nframe
double
MidiClockTicker::one_ppqn_in_frames (framepos_t transport_position)
{
const Tempo& current_tempo = _session->tempo_map().tempo_at_frame (transport_position);
double frames_per_beat = _session->tempo_map().frames_per_beat_at (transport_position, _session->nominal_frame_rate());
double quarter_notes_per_beat = 4.0 / current_tempo.note_type();
double frames_per_quarter_note = frames_per_beat / quarter_notes_per_beat;
const double frames_per_quarter_note = _session->tempo_map().frames_per_quarter_note_at (transport_position, _session->nominal_frame_rate());
return frames_per_quarter_note / double (_ppqn);
}

View file

@ -132,7 +132,7 @@ JACKSession::timebase_callback (jack_transport_state_t /*state*/,
pos->beats_per_bar = metric.meter().divisions_per_bar();
pos->beat_type = metric.meter().note_divisor();
pos->ticks_per_beat = Timecode::BBT_Time::ticks_per_beat;
pos->beats_per_minute = metric.tempo().beats_per_minute();
pos->beats_per_minute = metric.tempo().note_types_per_minute();
pos->valid = jack_position_bits_t (pos->valid | JackPositionBBT);