return frames_per_grid (tempo, sr) * _divisions_per_bar;
}
-
/***********************************************************************/
const string TempoSection::xml_state_node_name = "Tempo";
TempoSection::TempoSection (const XMLNode& node)
- : MetricSection (0.0), Tempo (TempoMap::default_tempo())
+ : MetricSection (0.0)
+ , Tempo (TempoMap::default_tempo())
+ , _c_func (0.0)
+ , _active (true)
{
const XMLProperty *prop;
LocaleGuard lg;
BBT_Time bbt;
- double beat;
+ double pulse;
uint32_t frame;
+ _legacy_bbt = BBT_Time (0, 0, 0);
+
if ((prop = node.property ("start")) != 0) {
if (sscanf (prop->value().c_str(), "%" PRIu32 "|%" PRIu32 "|%" PRIu32,
&bbt.bars,
&bbt.ticks) == 3) {
/* legacy session - start used to be in bbt*/
_legacy_bbt = bbt;
- beat = -1.0;
- set_beat (beat);
+ pulse = -1.0;
+ info << _("Legacy session detected. TempoSection XML node will be altered.") << endmsg;
}
- } else {
- warning << _("TempoSection XML node has no \"start\" property") << endmsg;
}
-
- if ((prop = node.property ("beat")) != 0) {
- if (sscanf (prop->value().c_str(), "%lf", &beat) != 1 || beat < 0.0) {
- error << _("TempoSection XML node has an illegal \"beat\" value") << endmsg;
- } else {
- set_beat (beat);
+ if ((prop = node.property ("pulse")) != 0) {
+ if (sscanf (prop->value().c_str(), "%lf", &pulse) != 1) {
+ error << _("TempoSection XML node has an illegal \"pulse\" value") << endmsg;
}
}
+
+ set_pulse (pulse);
+
if ((prop = node.property ("frame")) != 0) {
if (sscanf (prop->value().c_str(), "%" PRIu32, &frame) != 1) {
error << _("TempoSection XML node has an illegal \"frame\" value") << endmsg;
set_movable (string_is_affirmative (prop->value()));
- if ((prop = node.property ("bar-offset")) == 0) {
- _bar_offset = -1.0;
+ if ((prop = node.property ("active")) == 0) {
+ warning << _("TempoSection XML node has no \"active\" property") << endmsg;
+ set_active(true);
} else {
- if (sscanf (prop->value().c_str(), "%lf", &_bar_offset) != 1 || _bar_offset < 0.0) {
- error << _("TempoSection XML node has an illegal \"bar-offset\" value") << endmsg;
- throw failed_constructor();
- }
+ set_active (string_is_affirmative (prop->value()));
}
if ((prop = node.property ("tempo-type")) == 0) {
}
if ((prop = node.property ("lock-style")) == 0) {
- set_position_lock_style (MusicTime);
+ if (movable()) {
+ set_position_lock_style (MusicTime);
+ } else {
+ set_position_lock_style (AudioTime);
+ }
} else {
set_position_lock_style (PositionLockStyle (string_2_enum (prop->value(), position_lock_style())));
}
char buf[256];
LocaleGuard lg;
- snprintf (buf, sizeof (buf), "%f", beat());
- root->add_property ("beat", buf);
+ snprintf (buf, sizeof (buf), "%f", pulse());
+ root->add_property ("pulse", buf);
snprintf (buf, sizeof (buf), "%li", frame());
root->add_property ("frame", buf);
snprintf (buf, sizeof (buf), "%f", _beats_per_minute);
root->add_property ("beats-per-minute", buf);
snprintf (buf, sizeof (buf), "%f", _note_type);
root->add_property ("note-type", buf);
- // snprintf (buf, sizeof (buf), "%f", _bar_offset);
- // root->add_property ("bar-offset", buf);
snprintf (buf, sizeof (buf), "%s", movable()?"yes":"no");
root->add_property ("movable", buf);
+ snprintf (buf, sizeof (buf), "%s", active()?"yes":"no");
+ root->add_property ("active", buf);
root->add_property ("tempo-type", enum_2_string (_type));
root->add_property ("lock-style", enum_2_string (position_lock_style()));
return *root;
}
-void
-
-TempoSection::update_bar_offset_from_bbt (const Meter& m)
-{
- _bar_offset = (beat() * BBT_Time::ticks_per_beat) /
- (m.divisions_per_bar() * BBT_Time::ticks_per_beat);
-
- DEBUG_TRACE (DEBUG::TempoMath, string_compose ("Tempo set bar offset to %1 from %2 w/%3\n", _bar_offset, beat(), m.divisions_per_bar()));
-}
-
void
TempoSection::set_type (Type type)
{
_type = type;
}
-/** returns the tempo at the zero-based (relative to session) frame.
+/** returns the tempo in whole pulses per minute at the zero-based (relative to session) frame.
*/
double
-TempoSection::tempo_at_frame (framepos_t f, framecnt_t frame_rate) const
+TempoSection::tempo_at_frame (const framepos_t& f, const framecnt_t& frame_rate) const
{
- if (_type == Constant) {
- return beats_per_minute();
+ if (_type == Constant || _c_func == 0.0) {
+ return pulses_per_minute();
}
- return tick_tempo_at_time (frame_to_minute (f - frame(), frame_rate)) / BBT_Time::ticks_per_beat;
+ return pulse_tempo_at_time (frame_to_minute (f - frame(), frame_rate));
}
/** returns the zero-based frame (relative to session)
- where the tempo occurs in this section.
+ where the tempo in whole pulses per minute occurs in this section.
beat b is only used for constant tempos.
note that the tempo map may have multiple such values.
*/
framepos_t
-TempoSection::frame_at_tempo (double bpm, double b, framecnt_t frame_rate) const
+TempoSection::frame_at_tempo (const double& ppm, const double& b, const framecnt_t& frame_rate) const
{
- if (_type == Constant) {
- return ((b - beat()) * frames_per_beat (frame_rate)) + frame();
+ if (_type == Constant || _c_func == 0.0) {
+ return ((b - pulse()) * frames_per_pulse (frame_rate)) + frame();
}
- return minute_to_frame (time_at_tick_tempo (bpm * BBT_Time::ticks_per_beat), frame_rate) + frame();
+ return minute_to_frame (time_at_pulse_tempo (ppm), frame_rate) + frame();
}
-/** returns the tempo at the zero-based (relative to session) beat.
+/** returns the tempo in pulses per minute at the zero-based (relative to session) beat.
*/
double
-TempoSection::tempo_at_beat (double b) const
+TempoSection::tempo_at_pulse (const double& p) const
{
- if (_type == Constant) {
- return beats_per_minute();
+ if (_type == Constant || _c_func == 0.0) {
+ return pulses_per_minute();
}
-
- return tick_tempo_at_tick ((b - beat()) * BBT_Time::ticks_per_beat) / BBT_Time::ticks_per_beat;
+ double const ppm = pulse_tempo_at_pulse (p - pulse());
+ return ppm;
}
/** returns the zero-based beat (relative to session)
- where the tempo occurs given frame f. frame f is only used for constant tempos.
+ where the tempo in whole pulses per minute occurs given frame f. frame f is only used for constant tempos.
note that the session tempo map may have multiple beats at a given tempo.
*/
double
-TempoSection::beat_at_tempo (double bpm, framepos_t f, framecnt_t frame_rate) const
+TempoSection::pulse_at_tempo (const double& ppm, const framepos_t& f, const framecnt_t& frame_rate) const
{
- if (_type == Constant) {
- double const ticks = (((f - frame()) / frames_per_beat (frame_rate)) * BBT_Time::ticks_per_beat) + tick();
- return ticks / BBT_Time::ticks_per_beat;
+ if (_type == Constant || _c_func == 0.0) {
+ double const pulses = ((f - frame()) / frames_per_pulse (frame_rate)) + pulse();
+ return pulses;
}
-
- return (tick_at_tick_tempo (bpm * BBT_Time::ticks_per_beat) + tick()) / BBT_Time::ticks_per_beat;
+ return pulse_at_pulse_tempo (ppm) + pulse();
}
-/** returns the zero-based beat (relative to session origin)
+/** returns the zero-based pulse (relative to session origin)
where the zero-based frame (relative to session)
lies.
*/
double
-TempoSection::beat_at_frame (framepos_t frame, framecnt_t frame_rate) const
-{
- return tick_at_frame (frame, frame_rate) / BBT_Time::ticks_per_beat;
-}
-
-/** returns the zero-based frame (relative to session start frame)
- where the zero-based beat (relative to session start)
- falls.
-*/
-
-framepos_t
-TempoSection::frame_at_beat (double beat, framecnt_t frame_rate) const
-{
- return frame_at_tick (beat * BBT_Time::ticks_per_beat, frame_rate);
-}
-
-/** returns the zero-based tick (relative to session origin)
- where the zero-based frame (relative to tempo section)
- lies.
-*/
-double
-TempoSection::tick_at_frame (framepos_t f, framecnt_t frame_rate) const
+TempoSection::pulse_at_frame (const framepos_t& f, const framecnt_t& frame_rate) const
{
- if (_type == Constant) {
- return (((f - frame()) / frames_per_beat (frame_rate)) * BBT_Time::ticks_per_beat) + tick();
+ if (_type == Constant || _c_func == 0.0) {
+ return ((f - frame()) / frames_per_pulse (frame_rate)) + pulse();
}
- return tick_at_time (frame_to_minute (f - frame(), frame_rate)) + tick();
+ return pulse_at_time (frame_to_minute (f - frame(), frame_rate)) + pulse();
}
-/** returns the zero-based frame (relative to session origin)
- where the zero-based tick (relative to session)
+/** returns the zero-based frame (relative to session start frame)
+ where the zero-based pulse (relative to session start)
falls.
*/
+
framepos_t
-TempoSection::frame_at_tick (double t, framecnt_t frame_rate) const
+TempoSection::frame_at_pulse (const double& p, const framecnt_t& frame_rate) const
{
- if (_type == Constant) {
- return (framepos_t) floor (((t - tick()) / BBT_Time::ticks_per_beat) * frames_per_beat (frame_rate)) + frame();
+ if (_type == Constant || _c_func == 0.0) {
+ return (framepos_t) floor ((p - pulse()) * frames_per_pulse (frame_rate)) + frame();
}
- return minute_to_frame (time_at_tick (t - tick()), frame_rate) + frame();
+ return minute_to_frame (time_at_pulse (p - pulse()), frame_rate) + frame();
}
/*
*/
-/* compute this ramp's function constant using the end tempo and duration (beats into global start) of some later tempo section*/
+/*
+ compute this ramp's function constant using the end tempo (in whole pulses per minute)
+ and duration (pulses into global start) of some later tempo section.
+*/
double
-TempoSection::compute_c_func_beat (double end_bpm, double end_beat, framecnt_t frame_rate)
+TempoSection::compute_c_func_pulse (const double& end_bpm, const double& end_pulse, const framecnt_t& frame_rate)
{
- double const log_tempo_ratio = log ((end_bpm * BBT_Time::ticks_per_beat) / ticks_per_minute());
- return ticks_per_minute() * (exp (log_tempo_ratio) - 1) / ((end_beat - beat()) * BBT_Time::ticks_per_beat);
+ double const log_tempo_ratio = log (end_bpm / pulses_per_minute());
+ return pulses_per_minute() * (expm1 (log_tempo_ratio)) / (end_pulse - pulse());
}
-/* compute the function constant from some later tempo section, given tempo (beats/min.) and distance (in frames) from session origin */
+/* compute the function constant from some later tempo section, given tempo (whole pulses/min.) and distance (in frames) from session origin */
double
-TempoSection::compute_c_func_frame (double end_bpm, framepos_t end_frame, framecnt_t frame_rate) const
+TempoSection::compute_c_func_frame (const double& end_bpm, const framepos_t& end_frame, const framecnt_t& frame_rate) const
{
- return c_func (end_bpm * BBT_Time::ticks_per_beat, frame_to_minute (end_frame - frame(), frame_rate));
+ return c_func (end_bpm, frame_to_minute (end_frame - frame(), frame_rate));
}
framecnt_t
-TempoSection::minute_to_frame (double time, framecnt_t frame_rate) const
+TempoSection::minute_to_frame (const double& time, const framecnt_t& frame_rate) const
{
return (framecnt_t) floor ((time * 60.0 * frame_rate) + 0.5);
}
double
-TempoSection::frame_to_minute (framecnt_t frame, framecnt_t frame_rate) const
+TempoSection::frame_to_minute (const framecnt_t& frame, const framecnt_t& frame_rate) const
{
return (frame / (double) frame_rate) / 60.0;
}
/* position function */
double
-TempoSection::a_func (double end_tpm, double c_func) const
+TempoSection::a_func (double end_bpm, double c_func) const
{
- return log (end_tpm / ticks_per_minute()) / c_func;
+ return log (end_bpm / pulses_per_minute()) / c_func;
}
/*function constant*/
double
-TempoSection::c_func (double end_tpm, double end_time) const
-{
- return log (end_tpm / ticks_per_minute()) / end_time;
-}
-
-/* tempo in tpm at time in minutes */
-double
-TempoSection::tick_tempo_at_time (double time) const
-{
- return exp (_c_func * time) * ticks_per_minute();
-}
-
-/* time in minutes at tempo in tpm */
-double
-TempoSection::time_at_tick_tempo (double tick_tempo) const
+TempoSection::c_func (double end_bpm, double end_time) const
{
- return log (tick_tempo / ticks_per_minute()) / _c_func;
+ return log (end_bpm / pulses_per_minute()) / end_time;
}
-/* tick at tempo in tpm */
+/* tempo in ppm at time in minutes */
double
-TempoSection::tick_at_tick_tempo (double tick_tempo) const
+TempoSection::pulse_tempo_at_time (const double& time) const
{
- return (tick_tempo - ticks_per_minute()) / _c_func;
+ return exp (_c_func * time) * pulses_per_minute();
}
-/* tempo in tpm at tick */
+/* time in minutes at tempo in ppm */
double
-TempoSection::tick_tempo_at_tick (double tick) const
+TempoSection::time_at_pulse_tempo (const double& pulse_tempo) const
{
- return (tick * _c_func) + ticks_per_minute();
+ return log (pulse_tempo / pulses_per_minute()) / _c_func;
}
-/* tick at time in minutes */
+/* tick at tempo in ppm */
double
-TempoSection::tick_at_time (double time) const
+TempoSection::pulse_at_pulse_tempo (const double& pulse_tempo) const
{
- return ((exp (_c_func * time)) - 1) * ticks_per_minute() / _c_func;
+ return (pulse_tempo - pulses_per_minute()) / _c_func;
}
-/* time in minutes at tick */
+/* tempo in ppm at tick */
double
-TempoSection::time_at_tick (double tick) const
+TempoSection::pulse_tempo_at_pulse (const double& pulse) const
{
- return log (((_c_func * tick) / ticks_per_minute()) + 1) / _c_func;
+ return (pulse * _c_func) + pulses_per_minute();
}
-/* beat at time in minutes */
+/* pulse at time in minutes */
double
-TempoSection::beat_at_time (double time) const
+TempoSection::pulse_at_time (const double& time) const
{
- return tick_at_time (time) / BBT_Time::ticks_per_beat;
+ return expm1 (_c_func * time) * (pulses_per_minute() / _c_func);
}
-/* time in munutes at beat */
+/* time in minutes at pulse */
double
-TempoSection::time_at_beat (double beat) const
-{
- return time_at_tick (beat * BBT_Time::ticks_per_beat);
-}
-
-void
-TempoSection::update_bbt_time_from_bar_offset (const Meter& meter)
+TempoSection::time_at_pulse (const double& pulse) const
{
- double new_beat;
-
- if (_bar_offset < 0.0) {
- /* not set yet */
- return;
- }
-
- new_beat = beat();
-
- double ticks = BBT_Time::ticks_per_beat * meter.divisions_per_bar() * _bar_offset;
- new_beat = ticks / BBT_Time::ticks_per_beat;
-
- DEBUG_TRACE (DEBUG::TempoMath, string_compose ("from bar offset %1 and dpb %2, ticks = %3->%4 beats = %5\n",
- _bar_offset, meter.divisions_per_bar(), ticks, new_beat, new_beat));
-
- set_beat (new_beat);
+ return log1p ((_c_func * pulse) / pulses_per_minute()) / _c_func;
}
/***********************************************************************/
-/*
-if a meter section is position locked to frames, then it can only be at 1|1|0.
-thus we can have multiple 1|1|0s in the session tempo map.
-
-like this:
-
-BBT 1|1|0 2|1|0 3|1|0 1|1|0
-beat 0 4 8 12
-
-all other meter sections are locked to beats.
-
-the beat of a meter section is used to find its position rather than the stored bbt.
-*/
-
const string MeterSection::xml_state_node_name = "Meter";
MeterSection::MeterSection (const XMLNode& node)
LocaleGuard lg;
const XMLProperty *prop;
BBT_Time bbt;
+ double pulse = 0.0;
double beat = 0.0;
framepos_t frame = 0;
pair<double, BBT_Time> start;
error << _("MeterSection XML node has an illegal \"start\" value") << endmsg;
} else {
/* legacy session - start used to be in bbt*/
- beat = -1.0;
+ info << _("Legacy session detected - MeterSection XML node will be altered.") << endmsg;
+ pulse = -1.0;
+ }
+ }
+
+ if ((prop = node.property ("pulse")) != 0) {
+ if (sscanf (prop->value().c_str(), "%lf", &pulse) != 1) {
+ error << _("MeterSection XML node has an illegal \"pulse\" value") << endmsg;
}
- } else {
- error << _("MeterSection XML node has no \"start\" property") << endmsg;
}
+ set_pulse (pulse);
if ((prop = node.property ("beat")) != 0) {
- if (sscanf (prop->value().c_str(), "%lf", &beat) != 1 || beat < 0.0) {
+ if (sscanf (prop->value().c_str(), "%lf", &beat) != 1) {
error << _("MeterSection XML node has an illegal \"beat\" value") << endmsg;
}
}
start.first = beat;
if ((prop = node.property ("bbt")) == 0) {
- error << _("MeterSection XML node has no \"bbt\" property") << endmsg;
+ warning << _("MeterSection XML node has no \"bbt\" property") << endmsg;
} else if (sscanf (prop->value().c_str(), "%" PRIu32 "|%" PRIu32 "|%" PRIu32,
&bbt.bars,
&bbt.beats,
&bbt.ticks) < 3) {
error << _("MeterSection XML node has an illegal \"bbt\" value") << endmsg;
- //throw failed_constructor();
+ throw failed_constructor();
}
start.second = bbt;
-
set_beat (start);
if ((prop = node.property ("frame")) != 0) {
throw failed_constructor();
}
- if ((prop = node.property ("lock-style")) == 0) {
- warning << _("MeterSection XML node has no \"lock-style\" property") << endmsg;
- set_position_lock_style (MusicTime);
- } else {
- set_position_lock_style (PositionLockStyle (string_2_enum (prop->value(), position_lock_style())));
- }
-
if ((prop = node.property ("movable")) == 0) {
error << _("MeterSection XML node has no \"movable\" property") << endmsg;
throw failed_constructor();
}
set_movable (string_is_affirmative (prop->value()));
+
+ if ((prop = node.property ("lock-style")) == 0) {
+ warning << _("MeterSection XML node has no \"lock-style\" property") << endmsg;
+ if (movable()) {
+ set_position_lock_style (MusicTime);
+ } else {
+ set_position_lock_style (AudioTime);
+ }
+ } else {
+ set_position_lock_style (PositionLockStyle (string_2_enum (prop->value(), position_lock_style())));
+ }
}
XMLNode&
char buf[256];
LocaleGuard lg;
+ snprintf (buf, sizeof (buf), "%lf", pulse());
+ root->add_property ("pulse", buf);
snprintf (buf, sizeof (buf), "%" PRIu32 "|%" PRIu32 "|%" PRIu32,
bbt().bars,
bbt().beats,
}
/***********************************************************************/
+/*
+ Tempo Map Overview
+
+ Tempo can be thought of as a source of the musical pulse.
+ Meters divide that pulse into measures and beats.
+ Tempo pulses can be divided to be in sympathy with the meter, but this does not affect the beat
+ at any particular time.
+ Note that Tempo::beats_per_minute() has nothing to do with musical beats.
+ It should rather be thought of as tempo note divisions per minute.
+
+ TempoSections, which are nice to think of in whole pulses per minute,
+ and MeterSecions which divide tempo pulses into measures (via divisions_per_bar)
+ and beats (via note_divisor) are used to form a tempo map.
+ TempoSections and MeterSections may be locked to either audio or music (position lock style).
+ We construct the tempo map by first using the frame or pulse position (depending on position lock style) of each tempo.
+ We then use this pulse/frame layout to find the beat & pulse or frame position of each meter (again depending on lock style).
+ Having done this, we can now find any one of tempo, beat, frame or pulse if a beat, frame, pulse or tempo is known.
+
+ The first tempo and first meter are special. they must move together, and must be locked to audio.
+ Audio locked tempos which lie before the first meter are made inactive.
+ They will be re-activated if the first meter is again placed before them.
+
+ Both tempos and meters have a pulse position and a frame position.
+ Meters also have a beat position, which is always 0.0 for the first meter.
+
+ A tempo locked to music is locked to musical pulses.
+ A meter locked to music is locked to beats.
+
+ Recomputing the tempo map is the process where the 'missing' position
+ (tempo pulse or meter pulse & beat in the case of AudioTime, frame for MusicTime) is calculated.
+
+ It is important to keep the _metrics in an order that makes sense.
+ Because ramped MusicTime and AudioTime tempos can interact with each other,
+ reordering is frequent. Care must be taken to keep _metrics in a solved state.
+ Solved means ordered by frame or pulse with frame-accurate precision (see check_solved()).
+*/
struct MetricSectionSorter {
bool operator() (const MetricSection* a, const MetricSection* b) {
- return a->beat() < b->beat();
+ return a->pulse() < b->pulse();
}
};
_frame_rate = fr;
BBT_Time start (1, 1, 0);
- TempoSection *t = new TempoSection (0.0, _default_tempo.beats_per_minute(), _default_tempo.note_type(), TempoSection::Constant);
- MeterSection *m = new MeterSection (0.0, start, _default_meter.divisions_per_bar(), _default_meter.note_divisor());
+ TempoSection *t = new TempoSection ((framepos_t) 0, _default_tempo.beats_per_minute(), _default_tempo.note_type(), TempoSection::Constant);
+ MeterSection *m = new MeterSection ((framepos_t) 0, 0.0, start, _default_meter.divisions_per_bar(), _default_meter.note_divisor());
t->set_movable (false);
m->set_movable (false);
TempoMap::do_insert (MetricSection* section)
{
bool need_add = true;
-
/* we only allow new meters to be inserted on beat 1 of an existing
* measure.
*/
MeterSection* m = 0;
if ((m = dynamic_cast<MeterSection*>(section)) != 0) {
- assert (m->bbt().ticks == 0);
+ //assert (m->bbt().ticks == 0);
- if (m->position_lock_style() == MusicTime && ((m->bbt().beats != 1) || (m->bbt().ticks != 0))) {
+ if ((m->bbt().beats != 1) || (m->bbt().ticks != 0)) {
- pair<double, BBT_Time> corrected = make_pair (m->beat(), m->bbt());
+ pair<double, BBT_Time> corrected = make_pair (m->pulse(), m->bbt());
corrected.second.beats = 1;
corrected.second.ticks = 0;
corrected.first = bbt_to_beats_locked (_metrics, corrected.second);
warning << string_compose (_("Meter changes can only be positioned on the first beat of a bar. Moving from %1 to %2"),
m->bbt(), corrected.second) << endmsg;
- m->set_beat (corrected);
+ //m->set_pulse (corrected);
}
}
TempoSection* const tempo = dynamic_cast<TempoSection*> (*i);
TempoSection* const insert_tempo = dynamic_cast<TempoSection*> (section);
+ MeterSection* const meter = dynamic_cast<MeterSection*> (*i);
+ MeterSection* const insert_meter = dynamic_cast<MeterSection*> (section);
if (tempo && insert_tempo) {
/* Tempo sections */
- PositionLockStyle const ipl = insert_tempo->position_lock_style();
- if ((ipl == MusicTime && tempo->beat() == insert_tempo->beat()) || (ipl == AudioTime && tempo->frame() == insert_tempo->frame())) {
+ bool const ipm = insert_tempo->position_lock_style() == MusicTime;
+ if ((ipm && tempo->pulse() == insert_tempo->pulse()) || (!ipm && tempo->frame() == insert_tempo->frame())) {
if (!tempo->movable()) {
*/
*(dynamic_cast<Tempo*>(*i)) = *(dynamic_cast<Tempo*>(insert_tempo));
+ (*i)->set_position_lock_style (AudioTime);
+ TempoSection* t;
+ if ((t = dynamic_cast<TempoSection*>(*i)) != 0) {
+ t->set_type (insert_tempo->type());
+ }
need_add = false;
} else {
_metrics.erase (i);
break;
}
- } else if (!tempo && !insert_tempo) {
+ } else if (meter && insert_meter) {
/* Meter Sections */
- MeterSection* const meter = dynamic_cast<MeterSection*> (*i);
- MeterSection* const insert_meter = dynamic_cast<MeterSection*> (section);
- PositionLockStyle const ipl = insert_meter->position_lock_style();
- if ((ipl == MusicTime && meter->beat() == insert_meter->beat()) || (ipl == AudioTime && meter->frame() == insert_meter->frame())) {
+ bool const ipm = insert_meter->position_lock_style() == MusicTime;
+
+ if ((ipm && meter->beat() == insert_meter->beat()) || (!ipm && meter->frame() == insert_meter->frame())) {
if (!meter->movable()) {
*/
*(dynamic_cast<Meter*>(*i)) = *(dynamic_cast<Meter*>(insert_meter));
+ (*i)->set_position_lock_style (AudioTime);
need_add = false;
} else {
_metrics.erase (i);
-
}
break;
if (need_add) {
MeterSection* const insert_meter = dynamic_cast<MeterSection*> (section);
TempoSection* const insert_tempo = dynamic_cast<TempoSection*> (section);
-
Metrics::iterator i;
if (insert_meter) {
for (i = _metrics.begin(); i != _metrics.end(); ++i) {
MeterSection* const meter = dynamic_cast<MeterSection*> (*i);
if (meter) {
- PositionLockStyle const ipl = insert_meter->position_lock_style();
- if ((ipl == MusicTime && meter->beat() > insert_meter->beat()) || (ipl == AudioTime && meter->frame() > insert_meter->frame())) {
+ bool const ipm = insert_meter->position_lock_style() == MusicTime;
+ if ((ipm && meter->beat() > insert_meter->beat()) || (!ipm && meter->frame() > insert_meter->frame())) {
break;
}
}
TempoSection* const tempo = dynamic_cast<TempoSection*> (*i);
if (tempo) {
- PositionLockStyle const ipl = insert_tempo->position_lock_style();
- if ((ipl == MusicTime && tempo->beat() > insert_tempo->beat()) || (ipl == AudioTime && tempo->frame() > insert_tempo->frame())) {
+ bool const ipm = insert_tempo->position_lock_style() == MusicTime;
+ if ((ipm && tempo->pulse() > insert_tempo->pulse()) || (!ipm && tempo->frame() > insert_tempo->frame())) {
break;
}
}
}
_metrics.insert (i, section);
- //dump (std::cerr);
+ //dump (_metrics, std::cerr);
}
}
void
-TempoMap::replace_tempo (const TempoSection& ts, const Tempo& tempo, const double& where, TempoSection::Type type)
+TempoMap::replace_tempo (const TempoSection& ts, const Tempo& tempo, const double& pulse, TempoSection::Type type)
{
{
Glib::Threads::RWLock::WriterLock lm (lock);
TempoSection& first (first_tempo());
- if (ts.beat() != first.beat()) {
+ if (ts.pulse() != first.pulse()) {
remove_tempo_locked (ts);
- add_tempo_locked (tempo, where, true, type);
+ add_tempo_locked (tempo, pulse, true, type);
} else {
first.set_type (type);
{
add_tempo_locked (tempo, frame, true, type);
} else {
first.set_type (type);
+ first.set_pulse (0.0);
+ first.set_position_lock_style (AudioTime);
{
/* cannot move the first tempo section */
*static_cast<Tempo*>(&first) = tempo;
}
}
}
+
PropertyChanged (PropertyChange ());
}
-void
-TempoMap::add_tempo (const Tempo& tempo, double where, ARDOUR::TempoSection::Type type)
+TempoSection*
+TempoMap::add_tempo (const Tempo& tempo, const double& pulse, ARDOUR::TempoSection::Type type)
{
+ TempoSection* ts = 0;
{
Glib::Threads::RWLock::WriterLock lm (lock);
- add_tempo_locked (tempo, where, true, type);
+ ts = add_tempo_locked (tempo, pulse, true, type);
}
PropertyChanged (PropertyChange ());
+
+ return ts;
}
-void
-TempoMap::add_tempo (const Tempo& tempo, framepos_t frame, ARDOUR::TempoSection::Type type)
+TempoSection*
+TempoMap::add_tempo (const Tempo& tempo, const framepos_t& frame, ARDOUR::TempoSection::Type type)
{
+ TempoSection* ts = 0;
{
Glib::Threads::RWLock::WriterLock lm (lock);
- add_tempo_locked (tempo, frame, true, type);
+ ts = add_tempo_locked (tempo, frame, true, type);
}
PropertyChanged (PropertyChange ());
+
+ return ts;
}
-void
-TempoMap::add_tempo_locked (const Tempo& tempo, double where, bool recompute, ARDOUR::TempoSection::Type type)
+TempoSection*
+TempoMap::add_tempo_locked (const Tempo& tempo, double pulse, bool recompute, ARDOUR::TempoSection::Type type)
{
- TempoSection* ts = new TempoSection (where, tempo.beats_per_minute(), tempo.note_type(), type);
+ TempoSection* t = new TempoSection (pulse, tempo.beats_per_minute(), tempo.note_type(), type);
- do_insert (ts);
+ do_insert (t);
if (recompute) {
- recompute_map (_metrics);
+ solve_map (_metrics, t, t->pulse());
}
+
+ return t;
}
-void
+TempoSection*
TempoMap::add_tempo_locked (const Tempo& tempo, framepos_t frame, bool recompute, ARDOUR::TempoSection::Type type)
{
- TempoSection* ts = new TempoSection (frame, tempo.beats_per_minute(), tempo.note_type(), type);
+ TempoSection* t = new TempoSection (frame, tempo.beats_per_minute(), tempo.note_type(), type);
- do_insert (ts);
+ do_insert (t);
if (recompute) {
- recompute_map (_metrics);
+ solve_map (_metrics, t, t->frame());
}
+
+ return t;
}
void
{
{
Glib::Threads::RWLock::WriterLock lm (lock);
- MeterSection& first (first_meter());
- if (ms.beat() != first.beat()) {
+
+ if (ms.movable()) {
remove_meter_locked (ms);
add_meter_locked (meter, bbt_to_beats_locked (_metrics, where), where, true);
} else {
+ MeterSection& first (first_meter());
/* cannot move the first meter section */
*static_cast<Meter*>(&first) = meter;
- recompute_map (_metrics);
+ first.set_position_lock_style (AudioTime);
}
+ recompute_map (_metrics);
}
PropertyChanged (PropertyChange ());
{
{
Glib::Threads::RWLock::WriterLock lm (lock);
- MeterSection& first (first_meter());
- if (ms.beat() != first.beat()) {
+
+ const double beat = ms.beat();
+ const BBT_Time bbt = ms.bbt();
+
+ if (ms.movable()) {
remove_meter_locked (ms);
- add_meter_locked (meter, frame, true);
+ add_meter_locked (meter, frame, beat, bbt, true);
} else {
+ MeterSection& first (first_meter());
+ TempoSection& first_t (first_tempo());
/* cannot move the first meter section */
*static_cast<Meter*>(&first) = meter;
- recompute_map (_metrics);
+ first.set_position_lock_style (AudioTime);
+ first.set_pulse (0.0);
+ first.set_frame (frame);
+ pair<double, BBT_Time> beat = make_pair (0.0, BBT_Time (1, 1, 0));
+ first.set_beat (beat);
+ first_t.set_frame (first.frame());
+ first_t.set_pulse (0.0);
+ first_t.set_position_lock_style (AudioTime);
}
+ recompute_map (_metrics);
}
-
PropertyChanged (PropertyChange ());
}
-void
-TempoMap::add_meter (const Meter& meter, double beat, BBT_Time where)
+MeterSection*
+TempoMap::add_meter (const Meter& meter, const double& beat, const BBT_Time& where)
{
+ MeterSection* m = 0;
{
Glib::Threads::RWLock::WriterLock lm (lock);
- add_meter_locked (meter, beat, where, true);
+ m = add_meter_locked (meter, beat, where, true);
}
#ifndef NDEBUG
if (DEBUG_ENABLED(DEBUG::TempoMap)) {
- dump (std::cerr);
+ dump (_metrics, std::cerr);
}
#endif
PropertyChanged (PropertyChange ());
+
+ return m;
}
-void
-TempoMap::add_meter (const Meter& meter, framepos_t frame)
+MeterSection*
+TempoMap::add_meter (const Meter& meter, const framepos_t& frame, const double& beat, const Timecode::BBT_Time& where)
{
+ MeterSection* m = 0;
{
Glib::Threads::RWLock::WriterLock lm (lock);
- add_meter_locked (meter, frame, true);
+ m = add_meter_locked (meter, frame, beat, where, true);
}
#ifndef NDEBUG
if (DEBUG_ENABLED(DEBUG::TempoMap)) {
- dump (std::cerr);
+ dump (_metrics, std::cerr);
}
#endif
PropertyChanged (PropertyChange ());
+
+ return m;
}
-void
+MeterSection*
TempoMap::add_meter_locked (const Meter& meter, double beat, BBT_Time where, bool recompute)
{
/* a new meter always starts a new bar on the first beat. so
where.beats = 1;
where.bars++;
}
-
/* new meters *always* start on a beat. */
where.ticks = 0;
-
- do_insert (new MeterSection (beat, where, meter.divisions_per_bar(), meter.note_divisor()));
-
- if (recompute) {
- recompute_map (_metrics);
- }
-
-}
-
-void
-TempoMap::add_meter_locked (const Meter& meter, framepos_t frame, bool recompute)
-{
-
- /* MusicTime meters always start on 1|1|0. */
- do_insert (new MeterSection (frame, meter.divisions_per_bar(), meter.note_divisor()));
+ const double pulse = pulse_at_beat_locked (_metrics, beat);
+ MeterSection* new_meter = new MeterSection (pulse, beat, where, meter.divisions_per_bar(), meter.note_divisor());
+ do_insert (new_meter);
if (recompute) {
- recompute_map (_metrics);
- }
-
-}
-
-/**
-* This is for a gui that needs to know the frame of a tempo section if it were to be moved to some bbt time,
-* taking any possible reordering as a consequence of this into account.
-* @param section - the section to be altered
-* @param bpm - the new Tempo
-* @param bbt - the bbt where the altered tempo will fall
-* @return returns - the position in frames where the new tempo section will lie.
-*/
-framepos_t
-TempoMap::predict_tempo_frame (TempoSection* section, const Tempo& bpm, const BBT_Time& bbt)
-{
- Glib::Threads::RWLock::ReaderLock lm (lock);
- Metrics future_map;
- framepos_t ret = 0;
- TempoSection* new_section = copy_metrics_and_point (future_map, section);
- double const beat = bbt_to_beats_locked (future_map, bbt);
- if (solve_map (future_map, new_section, bpm, beat)) {
- ret = new_section->frame();
- } else {
- ret = frame_at_beat_locked (_metrics, beat);
- }
-
- Metrics::const_iterator d = future_map.begin();
- while (d != future_map.end()) {
- delete (*d);
- ++d;
- }
- return ret;
-}
-
-void
-TempoMap::gui_move_tempo (TempoSection* ts, const Tempo& bpm, const framepos_t& frame)
-{
- Metrics future_map;
- {
- Glib::Threads::RWLock::WriterLock lm (lock);
- TempoSection* new_section = copy_metrics_and_point (future_map, ts);
- if (solve_map (future_map, new_section, bpm, frame)) {
- solve_map (_metrics, ts, bpm, frame);
- }
- }
-
- Metrics::const_iterator d = future_map.begin();
- while (d != future_map.end()) {
- delete (*d);
- ++d;
- }
-
- MetricPositionChanged (); // Emit Signal
-}
-
-void
-TempoMap::gui_move_meter (MeterSection* ms, const Meter& mt, const framepos_t& frame)
-{
- {
- Glib::Threads::RWLock::WriterLock lm (lock);
- solve_map (_metrics, ms, mt, frame);
- }
-
- MetricPositionChanged (); // Emit Signal
-}
-
-void
-TempoMap::gui_move_meter (MeterSection* ms, const Meter& mt, const double& beat)
-{
- {
- Glib::Threads::RWLock::WriterLock lm (lock);
- solve_map (_metrics, ms, mt, beat);
+ solve_map (_metrics, new_meter, pulse);
}
- MetricPositionChanged (); // Emit Signal
-}
-
-TempoSection*
-TempoMap::copy_metrics_and_point (Metrics& copy, TempoSection* section)
-{
- TempoSection* t;
- TempoSection* ret = 0;
- MeterSection* m;
-
- for (Metrics::iterator i = _metrics.begin(); i != _metrics.end(); ++i) {
- if ((t = dynamic_cast<TempoSection*> (*i)) != 0) {
- if (t == section) {
- if (t->position_lock_style() == MusicTime) {
- ret = new TempoSection (t->beat(), t->beats_per_minute(), t->note_type(), t->type());
- } else {
- ret = new TempoSection (t->frame(), t->beats_per_minute(), t->note_type(), t->type());
- }
- copy.push_back (ret);
- continue;
- }
- if (t->position_lock_style() == MusicTime) {
- copy.push_back (new TempoSection (t->beat(), t->beats_per_minute(), t->note_type(), t->type()));
- } else {
- copy.push_back (new TempoSection (t->frame(), t->beats_per_minute(), t->note_type(), t->type()));
- }
- }
- if ((m = dynamic_cast<MeterSection *> (*i)) != 0) {
- if (m->position_lock_style() == MusicTime) {
- copy.push_back (new MeterSection (m->beat(), m->bbt(), m->divisions_per_bar(), m->note_divisor()));
- } else {
- copy.push_back (new MeterSection (m->frame(), m->bbt(), m->divisions_per_bar(), m->note_divisor()));
-
- }
- }
- }
- recompute_map (copy);
- return ret;
+ return new_meter;
}
-bool
-TempoMap::can_solve_bbt (TempoSection* ts, const Tempo& bpm, const BBT_Time& bbt)
+MeterSection*
+TempoMap::add_meter_locked (const Meter& meter, framepos_t frame, double beat, Timecode::BBT_Time where, bool recompute)
{
- Metrics copy;
- TempoSection* new_section = 0;
+ MeterSection* new_meter = new MeterSection (frame, beat, where, meter.divisions_per_bar(), meter.note_divisor());
- {
- Glib::Threads::RWLock::ReaderLock lm (lock);
- new_section = copy_metrics_and_point (copy, ts);
- }
+ double pulse = pulse_at_frame_locked (_metrics, frame);
+ new_meter->set_pulse (pulse);
- double const beat = bbt_to_beats_locked (copy, bbt);
- bool ret = solve_map (copy, new_section, bpm, beat);
+ do_insert (new_meter);
- Metrics::const_iterator d = copy.begin();
- while (d != copy.end()) {
- delete (*d);
- ++d;
+ if (recompute) {
+ solve_map (_metrics, new_meter, frame);
}
- return ret;
+ return new_meter;
}
void
for (Metrics::iterator i = _metrics.begin(); i != _metrics.end(); ++i) {
if ((t = dynamic_cast<TempoSection*> (*i)) != 0) {
+ if (!t->active()) {
+ continue;
+ }
{
Glib::Threads::RWLock::WriterLock lm (lock);
*((Tempo*) t) = newtempo;
TempoSection* t;
if ((t = dynamic_cast<TempoSection*>(*i)) != 0) {
- if (!first) {
+ if (!t->active()) {
+ continue;
+ }
+ if (!first) {
first = t;
}
prev = t;
}
}
- fatal << _("programming error: no tempo section in tempo map!") << endmsg;
+ fatal << _("programming error: no meter section in tempo map!") << endmsg;
abort(); /*NOTREACHED*/
return *m;
}
for (Metrics::const_iterator i = _metrics.begin(); i != _metrics.end(); ++i) {
if ((t = dynamic_cast<const TempoSection *> (*i)) != 0) {
- return *t;
+ if (!t->active()) {
+ continue;
+ }
+ if (!t->movable()) {
+ return *t;
+ }
}
}
for (Metrics::const_iterator i = _metrics.begin(); i != _metrics.end(); ++i) {
if ((t = dynamic_cast<TempoSection *> (*i)) != 0) {
- return *t;
+ if (!t->active()) {
+ continue;
+ }
+ if (!t->movable()) {
+ return *t;
+ }
}
}
void
TempoMap::recompute_tempos (Metrics& metrics)
{
- TempoSection* prev_ts = 0;
+ TempoSection* prev_t = 0;
for (Metrics::const_iterator i = metrics.begin(); i != metrics.end(); ++i) {
TempoSection* t;
if ((t = dynamic_cast<TempoSection*> (*i)) != 0) {
- if (prev_ts) {
+ if (!t->active()) {
+ continue;
+ }
+ if (!t->movable()) {
+ t->set_pulse (0.0);
+ prev_t = t;
+ continue;
+ }
+ if (prev_t) {
if (t->position_lock_style() == AudioTime) {
- prev_ts->set_c_func (prev_ts->compute_c_func_frame (t->beats_per_minute(), t->frame(), _frame_rate));
- t->set_beat (prev_ts->beat_at_tempo (t->beats_per_minute(), t->frame(), _frame_rate));
+ prev_t->set_c_func (prev_t->compute_c_func_frame (t->pulses_per_minute(), t->frame(), _frame_rate));
+ t->set_pulse (prev_t->pulse_at_tempo (t->pulses_per_minute(), t->frame(), _frame_rate));
} else {
- prev_ts->set_c_func (prev_ts->compute_c_func_beat (t->beats_per_minute(), t->beat(), _frame_rate));
- t->set_frame (prev_ts->frame_at_tempo (t->beats_per_minute(), t->beat(), _frame_rate));
+ prev_t->set_c_func (prev_t->compute_c_func_pulse (t->pulses_per_minute(), t->pulse(), _frame_rate));
+ t->set_frame (prev_t->frame_at_tempo (t->pulses_per_minute(), t->pulse(), _frame_rate));
}
}
- prev_ts = t;
+ prev_t = t;
}
}
+ prev_t->set_c_func (0.0);
}
/* tempos must be positioned correctly */
TempoMap::recompute_meters (Metrics& metrics)
{
MeterSection* meter = 0;
+ MeterSection* prev_m = 0;
for (Metrics::const_iterator mi = metrics.begin(); mi != metrics.end(); ++mi) {
if ((meter = dynamic_cast<MeterSection*> (*mi)) != 0) {
if (meter->position_lock_style() == AudioTime) {
- /* a frame based meter has to have a 1|1|0 bbt */
- pair<double, BBT_Time> pr;
- BBT_Time const where (1, 1, 0);
-
- pr.first = beat_at_frame_locked (metrics, meter->frame());
- pr.second = where;
- meter->set_beat (pr);
+ double pulse = 0.0;
+ pair<double, BBT_Time> b_bbt;
+ if (meter->movable()) {
+ const double beats = ((pulse_at_frame_locked (metrics, meter->frame()) - prev_m->pulse()) * prev_m->note_divisor());
+ const double floor_beats = beats - fmod (beats, prev_m->divisions_per_bar());
+ if (floor_beats + prev_m->beat() < meter->beat()) {
+ /* tempo change caused a change in beat (bar). */
+ b_bbt = make_pair (floor_beats + prev_m->beat(), BBT_Time ((floor_beats / prev_m->divisions_per_bar()) + prev_m->bbt().bars, 1, 0));
+ const double true_pulse = prev_m->pulse() + (floor_beats / prev_m->note_divisor());
+ const double pulse_off = true_pulse - (beats / prev_m->note_divisor()) - prev_m->pulse();
+ pulse = true_pulse - pulse_off;
+ } else {
+ b_bbt = make_pair (meter->beat(), meter->bbt());
+ pulse = pulse_at_frame_locked (metrics, meter->frame());
+ }
+ } else {
+ b_bbt = make_pair (0.0, BBT_Time (1, 1, 0));
+ }
+ meter->set_beat (b_bbt);
+ meter->set_pulse (pulse);
} else {
- meter->set_frame (frame_at_tick_locked (metrics, meter->tick()));
+ double pulse = 0.0;
+ pair<double, BBT_Time> new_beat;
+ if (prev_m) {
+ pulse = prev_m->pulse() + ((meter->bbt().bars - prev_m->bbt().bars) * prev_m->divisions_per_bar() / prev_m->note_divisor());
+ new_beat = make_pair (((pulse - prev_m->pulse()) * prev_m->note_divisor()) + prev_m->beat(), meter->bbt());
+ } else {
+ /* shouldn't happen - the first is audio-locked */
+ pulse = pulse_at_beat_locked (metrics, meter->beat());
+ new_beat = make_pair (pulse, meter->bbt());
+ }
+
+ meter->set_beat (new_beat);
+ meter->set_frame (frame_at_pulse_locked (metrics, pulse));
+ meter->set_pulse (pulse);
}
+
+ prev_m = meter;
}
}
+ //dump (_metrics, std::cerr;
}
void
recompute_meters (metrics);
}
-
TempoMetric
TempoMap::metric_at (framepos_t frame, Metrics::const_iterator* last) const
{
return m;
}
+
/* XX meters only */
TempoMetric
TempoMap::metric_at (BBT_Time bbt) const
return m;
}
-void
-TempoMap::bbt_time (framepos_t frame, BBT_Time& bbt)
+double
+TempoMap::pulse_at_beat_locked (const Metrics& metrics, const double& beat) const
+{
+ MeterSection* prev_m = 0;
+
+ for (Metrics::const_iterator i = metrics.begin(); i != metrics.end(); ++i) {
+ MeterSection* m;
+ if ((m = dynamic_cast<MeterSection*> (*i)) != 0) {
+ if (prev_m && m->beat() > beat) {
+ break;
+ }
+ prev_m = m;
+ }
+
+ }
+ double const ret = prev_m->pulse() + ((beat - prev_m->beat()) / prev_m->note_divisor());
+ return ret;
+}
+
+double
+TempoMap::pulse_at_beat (const double& beat) const
{
Glib::Threads::RWLock::ReaderLock lm (lock);
+ return pulse_at_beat_locked (_metrics, beat);
+}
- if (frame < 0) {
- bbt.bars = 1;
- bbt.beats = 1;
- bbt.ticks = 0;
- warning << string_compose (_("tempo map asked for BBT time at frame %1\n"), frame) << endmsg;
- return;
+double
+TempoMap::beat_at_pulse_locked (const Metrics& metrics, const double& pulse) const
+{
+ MeterSection* prev_m = 0;
+
+ for (Metrics::const_iterator i = metrics.begin(); i != metrics.end(); ++i) {
+ MeterSection* m;
+ if ((m = dynamic_cast<MeterSection*> (*i)) != 0) {
+ if (prev_m && m->pulse() > pulse) {
+ if ((pulse - prev_m->pulse()) * prev_m->note_divisor() < m->beat()) {
+ break;
+ }
+ }
+ prev_m = m;
+ }
}
- bbt = beats_to_bbt_locked (_metrics, beat_at_frame_locked (_metrics, frame));
+
+ double const beats_in_section = (pulse - prev_m->pulse()) * prev_m->note_divisor();
+
+ return beats_in_section + prev_m->beat();
}
double
-TempoMap::bbt_to_beats (Timecode::BBT_Time bbt)
+TempoMap::beat_at_pulse (const double& pulse) const
{
Glib::Threads::RWLock::ReaderLock lm (lock);
- return bbt_to_beats_locked (_metrics, bbt);
+ return beat_at_pulse_locked (_metrics, pulse);
}
double
-TempoMap::bbt_to_beats_locked (Metrics& metrics, Timecode::BBT_Time bbt)
+TempoMap::pulse_at_frame_locked (const Metrics& metrics, const framecnt_t& frame) const
{
- /* CALLER HOLDS READ LOCK */
+ /* HOLD (at least) THE READER LOCK */
+ TempoSection* prev_t = 0;
+
+ for (Metrics::const_iterator i = metrics.begin(); i != metrics.end(); ++i) {
+ TempoSection* t;
+ if ((t = dynamic_cast<TempoSection*> (*i)) != 0) {
+ if (!t->active()) {
+ continue;
+ }
+ if (prev_t && t->frame() > frame) {
+ /*the previous ts is the one containing the frame */
+ const double ret = prev_t->pulse_at_frame (frame, _frame_rate);
+ return ret;
+ }
+ prev_t = t;
+ }
+ }
+
+ /* treated as constant for this ts */
+ const double pulses_in_section = (frame - prev_t->frame()) / prev_t->frames_per_pulse (_frame_rate);
+
+ return pulses_in_section + prev_t->pulse();
+}
+
+double
+TempoMap::pulse_at_frame (const framecnt_t& frame) const
+{
+ Glib::Threads::RWLock::ReaderLock lm (lock);
+ return pulse_at_frame_locked (_metrics, frame);
+}
+
+framecnt_t
+TempoMap::frame_at_pulse_locked (const Metrics& metrics, const double& pulse) const
+{
+ /* HOLD THE READER LOCK */
+
+ const TempoSection* prev_t = 0;
+
+ for (Metrics::const_iterator i = metrics.begin(); i != metrics.end(); ++i) {
+ TempoSection* t;
+
+ if ((t = dynamic_cast<TempoSection*> (*i)) != 0) {
+ if (!t->active()) {
+ continue;
+ }
+ if (prev_t && t->pulse() > pulse) {
+ return prev_t->frame_at_pulse (pulse, _frame_rate);
+ }
+
+ prev_t = t;
+ }
+ }
+ /* must be treated as constant, irrespective of _type */
+ double const pulses_in_section = pulse - prev_t->pulse();
+ double const dtime = pulses_in_section * prev_t->frames_per_pulse (_frame_rate);
+
+ framecnt_t const ret = (framecnt_t) floor (dtime) + prev_t->frame();
+
+ return ret;
+}
+
+framecnt_t
+TempoMap::frame_at_pulse (const double& pulse) const
+{
+ Glib::Threads::RWLock::ReaderLock lm (lock);
+ return frame_at_pulse_locked (_metrics, pulse);
+}
- double accumulated_beats = 0.0;
- double accumulated_bars = 0.0;
- double bars_offset = 0.0;
- MeterSection* prev_ms = 0;
+double
+TempoMap::beat_at_frame_locked (const Metrics& metrics, const framecnt_t& frame) const
+{
+ const TempoSection& ts = tempo_section_at_locked (metrics, frame);
+ MeterSection* prev_m = 0;
+ MeterSection* next_m = 0;
for (Metrics::const_iterator i = metrics.begin(); i != metrics.end(); ++i) {
MeterSection* m;
if ((m = dynamic_cast<MeterSection*> (*i)) != 0) {
- double bars_to_m = 0.0;
- if (prev_ms) {
- bars_to_m = (m->beat() - prev_ms->beat()) / prev_ms->divisions_per_bar();
+ if (prev_m && m->frame() > frame) {
+ next_m = m;
+ break;
}
- if ((bars_to_m + accumulated_bars) > (bbt.bars - 1)) {
+ prev_m = m;
+ }
+ }
+ if (frame < prev_m->frame()) {
+ return 0.0;
+ }
+ const double beat = prev_m->beat() + (ts.pulse_at_frame (frame, _frame_rate) - prev_m->pulse()) * prev_m->note_divisor();
+
+ if (next_m && next_m->beat() < beat) {
+ return next_m->beat();
+ }
+
+ return beat;
+}
+
+double
+TempoMap::beat_at_frame (const framecnt_t& frame) const
+{
+ Glib::Threads::RWLock::ReaderLock lm (lock);
+ return beat_at_frame_locked (_metrics, frame);
+}
+
+framecnt_t
+TempoMap::frame_at_beat_locked (const Metrics& metrics, const double& beat) const
+{
+ const TempoSection& prev_t = tempo_section_at_beat_locked (metrics, beat);
+ MeterSection* prev_m = 0;
+
+ for (Metrics::const_iterator i = metrics.begin(); i != metrics.end(); ++i) {
+ MeterSection* m;
+ if ((m = dynamic_cast<MeterSection*> (*i)) != 0) {
+ if (prev_m && m->beat() > beat) {
break;
}
- if (prev_ms) {
- if (m->position_lock_style() == AudioTime) {
- accumulated_beats = 0.0;
- accumulated_bars = 0;
- bars_offset += bars_to_m;
- } else {
- accumulated_beats += m->beat() - prev_ms->beat();
- accumulated_bars += bars_to_m;
+ prev_m = m;
+ }
+ }
+
+ return prev_t.frame_at_pulse (((beat - prev_m->beat()) / prev_m->note_divisor()) + prev_m->pulse(), _frame_rate);
+}
+
+framecnt_t
+TempoMap::frame_at_beat (const double& beat) const
+{
+ Glib::Threads::RWLock::ReaderLock lm (lock);
+ return frame_at_beat_locked (_metrics, beat);
+}
+
+double
+TempoMap::bbt_to_beats_locked (const Metrics& metrics, const Timecode::BBT_Time& bbt) const
+{
+ /* CALLER HOLDS READ LOCK */
+
+ MeterSection* prev_m = 0;
+
+ /* because audio-locked meters have 'fake' integral beats,
+ there is no pulse offset here.
+ */
+ for (Metrics::const_iterator i = metrics.begin(); i != metrics.end(); ++i) {
+ MeterSection* m;
+ if ((m = dynamic_cast<MeterSection*> (*i)) != 0) {
+ if (prev_m) {
+ const double bars_to_m = (m->beat() - prev_m->beat()) / prev_m->divisions_per_bar();
+ if ((bars_to_m + (prev_m->bbt().bars - 1)) > (bbt.bars - 1)) {
+ break;
}
}
- prev_ms = m;
+ prev_m = m;
}
}
- double const remaining_bars = ((bbt.bars - bars_offset) - 1) - accumulated_bars;
- double const remaining_bars_in_beats = remaining_bars * prev_ms->divisions_per_bar();
- double const ret = remaining_bars_in_beats + accumulated_beats + (bbt.beats - 1) + (bbt.ticks / BBT_Time::ticks_per_beat);
+ const double remaining_bars = bbt.bars - prev_m->bbt().bars;
+ const double remaining_bars_in_beats = remaining_bars * prev_m->divisions_per_bar();
+ const double ret = remaining_bars_in_beats + prev_m->beat() + (bbt.beats - 1) + (bbt.ticks / BBT_Time::ticks_per_beat);
return ret;
}
-Timecode::BBT_Time
-TempoMap::beats_to_bbt (double beats)
+double
+TempoMap::bbt_to_beats (const Timecode::BBT_Time& bbt)
{
Glib::Threads::RWLock::ReaderLock lm (lock);
- return beats_to_bbt_locked (_metrics, beats);
+ return bbt_to_beats_locked (_metrics, bbt);
}
Timecode::BBT_Time
-TempoMap::beats_to_bbt_locked (Metrics& metrics, double beats)
+TempoMap::beats_to_bbt_locked (const Metrics& metrics, const double& b) const
{
/* CALLER HOLDS READ LOCK */
-
- MeterSection* prev_ms = 0;
- uint32_t accumulated_bars = 0;
+ MeterSection* prev_m = 0;
+ const double beats = (b < 0.0) ? 0.0 : b;
for (Metrics::const_iterator i = metrics.begin(); i != metrics.end(); ++i) {
MeterSection* m = 0;
if ((m = dynamic_cast<MeterSection*> (*i)) != 0) {
-
- if (prev_ms) {
+ if (prev_m) {
if (m->beat() > beats) {
/* this is the meter after the one our beat is on*/
break;
}
- if(m->position_lock_style() == AudioTime) {
- accumulated_bars = 0;
- } else {
- /* we need a whole number of bars. */
- accumulated_bars += ((m->beat() - prev_ms->beat()) + 1) / prev_ms->divisions_per_bar();
- }
}
- prev_ms = m;
+ prev_m = m;
}
}
- double const beats_in_ms = beats - prev_ms->beat();
- uint32_t const bars_in_ms = (uint32_t) floor (beats_in_ms / prev_ms->divisions_per_bar());
- uint32_t const total_bars = bars_in_ms + accumulated_bars;
- double const remaining_beats = beats_in_ms - (bars_in_ms * prev_ms->divisions_per_bar());
- double const remaining_ticks = (remaining_beats - floor (remaining_beats)) * BBT_Time::ticks_per_beat;
+ const double beats_in_ms = beats - prev_m->beat();
+ const uint32_t bars_in_ms = (uint32_t) floor (beats_in_ms / prev_m->divisions_per_bar());
+ const uint32_t total_bars = bars_in_ms + (prev_m->bbt().bars - 1);
+ const double remaining_beats = beats_in_ms - (bars_in_ms * prev_m->divisions_per_bar());
+ const double remaining_ticks = (remaining_beats - floor (remaining_beats)) * BBT_Time::ticks_per_beat;
BBT_Time ret;
ret.ticks -= BBT_Time::ticks_per_beat;
}
- if (ret.beats > prev_ms->divisions_per_bar()) {
+ if (ret.beats >= prev_m->divisions_per_bar() + 1) {
++ret.bars;
ret.beats = 1;
}
return ret;
}
-double
-TempoMap::tick_at_frame_locked (const Metrics& metrics, framecnt_t frame) const
+Timecode::BBT_Time
+TempoMap::beats_to_bbt (const double& beats)
{
- /* HOLD (at least) THE READER LOCK */
+ Glib::Threads::RWLock::ReaderLock lm (lock);
+ return beats_to_bbt_locked (_metrics, beats);
+}
+
+Timecode::BBT_Time
+TempoMap::pulse_to_bbt (const double& pulse)
+{
+ Glib::Threads::RWLock::ReaderLock lm (lock);
+ MeterSection* prev_m = 0;
- TempoSection* prev_ts = 0;
- double accumulated_ticks = 0.0;
+ for (Metrics::const_iterator i = _metrics.begin(); i != _metrics.end(); ++i) {
+ MeterSection* m = 0;
- for (Metrics::const_iterator i = metrics.begin(); i != metrics.end(); ++i) {
- TempoSection* t;
- if ((t = dynamic_cast<TempoSection*> (*i)) != 0) {
- if ((prev_ts) && frame < t->frame()) {
- /*the previous ts is the one containing the frame */
- return prev_ts->tick_at_frame (frame, _frame_rate);
+ if ((m = dynamic_cast<MeterSection*> (*i)) != 0) {
+
+ if (prev_m) {
+ double const pulses_to_m = m->pulse() - prev_m->pulse();
+ if (prev_m->pulse() + pulses_to_m > pulse) {
+ /* this is the meter after the one our beat is on*/
+ break;
+ }
}
- accumulated_ticks = t->tick();
- prev_ts = t;
+ prev_m = m;
}
}
- /* treated as constant for this ts */
- double const ticks_in_section = ((frame - prev_ts->frame()) / prev_ts->frames_per_beat (_frame_rate)) * Timecode::BBT_Time::ticks_per_beat;
-
- return ticks_in_section + accumulated_ticks;
-
-}
+ const double beats_in_ms = (pulse - prev_m->pulse()) * prev_m->note_divisor();
+ const uint32_t bars_in_ms = (uint32_t) floor (beats_in_ms / prev_m->divisions_per_bar());
+ const uint32_t total_bars = bars_in_ms + (prev_m->bbt().bars - 1);
+ const double remaining_beats = beats_in_ms - (bars_in_ms * prev_m->divisions_per_bar());
+ const double remaining_ticks = (remaining_beats - floor (remaining_beats)) * BBT_Time::ticks_per_beat;
-framecnt_t
-TempoMap::frame_at_tick_locked (const Metrics& metrics, double tick) const
-{
- /* HOLD THE READER LOCK */
+ BBT_Time ret;
- const TempoSection* prev_ts = 0;
- double accumulated_ticks = 0.0;
+ ret.ticks = (uint32_t) floor (remaining_ticks + 0.5);
+ ret.beats = (uint32_t) floor (remaining_beats);
+ ret.bars = total_bars;
- for (Metrics::const_iterator i = metrics.begin(); i != metrics.end(); ++i) {
- TempoSection* t;
- if ((t = dynamic_cast<TempoSection*> (*i)) != 0) {
- if (prev_ts && tick < t->tick()) {
- /* prev_ts is the one affecting us. */
- return prev_ts->frame_at_tick (tick, _frame_rate);
- }
+ /* 0 0 0 to 1 1 0 mapping*/
+ ++ret.bars;
+ ++ret.beats;
- accumulated_ticks = t->tick();
- prev_ts = t;
- }
+ if (ret.ticks >= BBT_Time::ticks_per_beat) {
+ ++ret.beats;
+ ret.ticks -= BBT_Time::ticks_per_beat;
}
- /* must be treated as constant, irrespective of _type */
- double const ticks_in_section = tick - accumulated_ticks;
- double const dtime = (ticks_in_section / BBT_Time::ticks_per_beat) * prev_ts->frames_per_beat (_frame_rate);
- framecnt_t const ret = ((framecnt_t) floor (dtime)) + prev_ts->frame();
+ if (ret.beats >= prev_m->divisions_per_bar() + 1) {
+ ++ret.bars;
+ ret.beats = 1;
+ }
return ret;
}
-double
-TempoMap::beat_at_frame (framecnt_t frame) const
-{
- Glib::Threads::RWLock::ReaderLock lm (lock);
- return tick_at_frame_locked (_metrics, frame) / BBT_Time::ticks_per_beat;
-}
-
-double
-TempoMap::beat_at_frame_locked (Metrics& metrics, framecnt_t frame) const
+void
+TempoMap::bbt_time (framepos_t frame, BBT_Time& bbt)
{
- return tick_at_frame_locked (metrics, frame) / BBT_Time::ticks_per_beat;
-}
-framecnt_t
-TempoMap::frame_at_beat (double beat) const
-{
+ if (frame < 0) {
+ bbt.bars = 1;
+ bbt.beats = 1;
+ bbt.ticks = 0;
+ warning << string_compose (_("tempo map asked for BBT time at frame %1\n"), frame) << endmsg;
+ return;
+ }
Glib::Threads::RWLock::ReaderLock lm (lock);
- return frame_at_tick_locked (_metrics, beat * BBT_Time::ticks_per_beat);
+ const double beat = beat_at_frame_locked (_metrics, frame);
+
+ bbt = beats_to_bbt_locked (_metrics, beat);
}
-framecnt_t
-TempoMap::frame_at_beat_locked (Metrics& metrics, double beat) const
+framepos_t
+TempoMap::frame_time_locked (const Metrics& metrics, const BBT_Time& bbt) const
{
+ /* HOLD THE READER LOCK */
- return frame_at_tick_locked (metrics, beat * BBT_Time::ticks_per_beat);
+ const framepos_t ret = frame_at_beat_locked (metrics, bbt_to_beats_locked (metrics, bbt));
+ return ret;
}
framepos_t
}
Glib::Threads::RWLock::ReaderLock lm (lock);
- return frame_time_locked (_metrics, bbt);;
-}
-
-framepos_t
-TempoMap::frame_time_locked (Metrics& metrics, const BBT_Time& bbt)
-{
- /* HOLD THE READER LOCK */
-
- framepos_t const ret = frame_at_beat_locked (metrics, bbt_to_beats_locked (metrics, bbt));
-
- return ret;
+ return frame_time_locked (_metrics, bbt);
}
bool
-TempoMap::check_solved (Metrics& metrics, bool by_frame)
+TempoMap::check_solved (const Metrics& metrics, bool by_frame) const
{
- TempoSection* prev_ts = 0;
+ TempoSection* prev_t = 0;
for (Metrics::const_iterator i = metrics.begin(); i != metrics.end(); ++i) {
TempoSection* t;
if ((t = dynamic_cast<TempoSection*> (*i)) != 0) {
- if (prev_ts) {
- if ((by_frame && t->frame() < prev_ts->frame()) || (!by_frame && t->beat() < prev_ts->beat())) {
+ if (!t->active()) {
+ continue;
+ }
+ if (prev_t) {
+ if ((by_frame && t->frame() < prev_t->frame()) || (!by_frame && t->pulse() < prev_t->pulse())) {
return false;
}
- if (by_frame && t->frame() != prev_ts->frame_at_tempo (t->beats_per_minute(), t->beat(), _frame_rate)) {
+
+ if (t->frame() == prev_t->frame()) {
return false;
}
- if (!by_frame && fabs (t->beat() - prev_ts->beat_at_tempo (t->beats_per_minute(), t->frame(), _frame_rate)) > 0.0000005) {
- std::cerr << "beat precision too low for bpm: " << t->beats_per_minute() << std::endl <<
- " |error :" << t->beat() - prev_ts->beat_at_tempo (t->beats_per_minute(), t->frame(), _frame_rate) << std::endl <<
- "|frame at beat :" << prev_ts->frame_at_beat (t->beat(), _frame_rate) << std::endl <<
- " |frame at tempo : " << prev_ts->frame_at_tempo (t->beats_per_minute(), t->beat(), _frame_rate) << std::endl;
+
+ /* precision check ensures pulses and frames align.*/
+ if (t->frame() != prev_t->frame_at_pulse (t->pulse(), _frame_rate)) {
return false;
}
}
- prev_ts = t;
+ prev_t = t;
}
}
}
bool
-TempoMap::solve_map (Metrics& imaginary, TempoSection* section, const Tempo& bpm, const framepos_t& frame)
+TempoMap::set_active_tempos (const Metrics& metrics, const framepos_t& frame)
{
- TempoSection* prev_ts = 0;
- MetricSectionFrameSorter fcmp;
- MetricSectionSorter cmp;
+ for (Metrics::const_iterator i = metrics.begin(); i != metrics.end(); ++i) {
+ TempoSection* t;
+ if ((t = dynamic_cast<TempoSection*> (*i)) != 0) {
+ if (!t->movable()) {
+ t->set_active (true);
+ continue;
+ }
+ if (t->movable() && t->active () && t->position_lock_style() == AudioTime && t->frame() < frame) {
+ t->set_active (false);
+ t->set_pulse (0.0);
+ } else if (t->movable() && t->position_lock_style() == AudioTime && t->frame() > frame) {
+ t->set_active (true);
+ } else if (t->movable() && t->position_lock_style() == AudioTime && t->frame() == frame) {
+ return false;
+ }
+ }
+ }
+ return true;
+}
- section->set_frame (frame);
+bool
+TempoMap::solve_map (Metrics& imaginary, TempoSection* section, const framepos_t& frame)
+{
+ TempoSection* prev_t = 0;
+ TempoSection* section_prev = 0;
+ framepos_t first_m_frame = 0;
+
+ for (Metrics::iterator i = imaginary.begin(); i != imaginary.end(); ++i) {
+ MeterSection* m;
+ if ((m = dynamic_cast<MeterSection*> (*i)) != 0) {
+ if (!m->movable()) {
+ first_m_frame = m->frame();
+ break;
+ }
+ }
+ }
+ if (section->movable() && frame <= first_m_frame) {
+ return false;
+ }
+
+ section->set_active (true);
+ section->set_frame (frame);
+
+ for (Metrics::iterator i = imaginary.begin(); i != imaginary.end(); ++i) {
+ TempoSection* t;
+ if ((t = dynamic_cast<TempoSection*> (*i)) != 0) {
+
+ if (!t->active()) {
+ continue;
+ }
+ if (prev_t) {
+ if (t == section) {
+ section_prev = prev_t;
+ continue;
+ }
+ if (t->position_lock_style() == MusicTime) {
+ prev_t->set_c_func (prev_t->compute_c_func_pulse (t->pulses_per_minute(), t->pulse(), _frame_rate));
+ t->set_frame (prev_t->frame_at_pulse (t->pulse(), _frame_rate));
+ } else {
+ prev_t->set_c_func (prev_t->compute_c_func_frame (t->pulses_per_minute(), t->frame(), _frame_rate));
+ t->set_pulse (prev_t->pulse_at_frame (t->frame(), _frame_rate));
+ }
+ }
+ prev_t = t;
+ }
+ }
+
+ if (section_prev) {
+ section_prev->set_c_func (section_prev->compute_c_func_frame (section->pulses_per_minute(), frame, _frame_rate));
+ section->set_pulse (section_prev->pulse_at_frame (frame, _frame_rate));
+ }
- imaginary.sort (fcmp);
if (section->position_lock_style() == MusicTime) {
/* we're setting the frame */
section->set_position_lock_style (AudioTime);
- recompute_map (imaginary);
+ recompute_tempos (imaginary);
section->set_position_lock_style (MusicTime);
} else {
- recompute_map (imaginary);
+ recompute_tempos (imaginary);
}
+
if (check_solved (imaginary, true)) {
+ recompute_meters (imaginary);
return true;
}
+ MetricSectionFrameSorter fcmp;
+ imaginary.sort (fcmp);
+ if (section->position_lock_style() == MusicTime) {
+ /* we're setting the frame */
+ section->set_position_lock_style (AudioTime);
+ recompute_tempos (imaginary);
+ section->set_position_lock_style (MusicTime);
+ } else {
+ recompute_tempos (imaginary);
+ }
+
+ if (check_solved (imaginary, true)) {
+ recompute_meters (imaginary);
+ return true;
+ }
+#if (0)
+ MetricSectionSorter cmp;
imaginary.sort (cmp);
if (section->position_lock_style() == MusicTime) {
/* we're setting the frame */
section->set_position_lock_style (AudioTime);
- recompute_map (imaginary);
+ recompute_tempos (imaginary);
section->set_position_lock_style (MusicTime);
} else {
- recompute_map (imaginary);
+ recompute_tempos (imaginary);
}
+
if (check_solved (imaginary, true)) {
+ recompute_meters (imaginary);
return true;
}
+#endif
+ //dump (imaginary, std::cerr);
- /*
- prev_ts = 0;
- std::cerr << "dumping frame order ------" << std::endl;;
- for (Metrics::iterator i = imaginary.begin(); i != imaginary.end(); ++i) {
- TempoSection* t;
+ return false;
+}
- if ((t = dynamic_cast<TempoSection*> (*i)) != 0) {
- if (prev_ts) {
+bool
+TempoMap::solve_map (Metrics& imaginary, TempoSection* section, const double& pulse)
+{
+ TempoSection* prev_t = 0;
+ TempoSection* section_prev = 0;
- std::cerr << "current : " << t->beats_per_minute() << " | " << t->beat() << " | " << t->frame() << std::endl;
- std::cerr << "previous : " << prev_ts->beats_per_minute() << " | " << prev_ts->beat() << " | " << prev_ts->frame() << std::endl;
- std::cerr << "calculated : " << prev_ts->tempo_at_beat(t->beat()) << " | " << prev_ts->beat_at_tempo (t->beats_per_minute(), t->frame(), _frame_rate) << " | " << prev_ts->frame_at_tempo(t->beats_per_minute(), t->beat(), _frame_rate) << std::endl;
- std::cerr << "------" << std::endl;
+ section->set_pulse (pulse);
+ for (Metrics::iterator i = imaginary.begin(); i != imaginary.end(); ++i) {
+ TempoSection* t;
+ if ((t = dynamic_cast<TempoSection*> (*i)) != 0) {
+ if (!t->active()) {
+ continue;
+ }
+ if (!t->movable()) {
+ t->set_pulse (0.0);
+ prev_t = t;
+ continue;
+ }
+ if (prev_t) {
+ if (t == section) {
+ section_prev = prev_t;
+ continue;
+ }
+ if (t->position_lock_style() == MusicTime) {
+ prev_t->set_c_func (prev_t->compute_c_func_pulse (t->pulses_per_minute(), t->pulse(), _frame_rate));
+ t->set_frame (prev_t->frame_at_pulse (t->pulse(), _frame_rate));
+ } else {
+ prev_t->set_c_func (prev_t->compute_c_func_frame (t->pulses_per_minute(), t->frame(), _frame_rate));
+ t->set_pulse (prev_t->pulse_at_frame (t->frame(), _frame_rate));
+ }
}
- prev_ts = t;
+ prev_t = t;
}
}
- std::cerr << "end dump ------" << std::endl;
- */
-
- return false;
-}
+ if (section_prev) {
+ section_prev->set_c_func (section_prev->compute_c_func_pulse (section->pulses_per_minute(), pulse, _frame_rate));
+ section->set_frame (section_prev->frame_at_pulse (pulse, _frame_rate));
+ }
-bool
-TempoMap::solve_map (Metrics& imaginary, TempoSection* section, const Tempo& bpm, const double& beat)
-{
- MetricSectionSorter cmp;
- MetricSectionFrameSorter fcmp;
+ if (section->position_lock_style() == AudioTime) {
+ /* we're setting the pulse */
+ section->set_position_lock_style (MusicTime);
+ recompute_tempos (imaginary);
+ section->set_position_lock_style (AudioTime);
+ } else {
+ recompute_tempos (imaginary);
+ }
- section->set_beat (beat);
+ if (check_solved (imaginary, false)) {
+ recompute_meters (imaginary);
+ return true;
+ }
+ MetricSectionSorter cmp;
imaginary.sort (cmp);
if (section->position_lock_style() == AudioTime) {
- /* we're setting the beat */
+ /* we're setting the pulse */
section->set_position_lock_style (MusicTime);
- recompute_map (imaginary);
+ recompute_tempos (imaginary);
section->set_position_lock_style (AudioTime);
} else {
- recompute_map (imaginary);
+ recompute_tempos (imaginary);
}
+
if (check_solved (imaginary, false)) {
+ recompute_meters (imaginary);
return true;
}
-
+#if (0)
+ MetricSectionFrameSorter fcmp;
imaginary.sort (fcmp);
if (section->position_lock_style() == AudioTime) {
- /* we're setting the beat */
+ /* we're setting the pulse */
section->set_position_lock_style (MusicTime);
- recompute_map (imaginary);
+ recompute_tempos (imaginary);
section->set_position_lock_style (AudioTime);
} else {
- recompute_map (imaginary);
+ recompute_tempos (imaginary);
}
+
if (check_solved (imaginary, false)) {
+ recompute_meters (imaginary);
return true;
}
+#endif
+ //dump (imaginary, std::cerr);
- /*
- TempoSection* prev_ts = 0;
- std::cerr << "dumping beat order ------" << std::endl;
- std::cerr << "section : " << section->beats_per_minute() << " | " << section->beat() << " | " << section->frame() << std::endl;
- std::cerr << "------------------------------------" << std::endl;
+ return false;
+}
- for (Metrics::iterator i = imaginary.begin(); i != imaginary.end(); ++i) {
- TempoSection* t;
- if ((t = dynamic_cast<TempoSection*> (*i)) != 0) {
- if (prev_ts) {
+void
+TempoMap::solve_map (Metrics& imaginary, MeterSection* section, const framepos_t& frame)
+{
+ /* disallow moving first meter past any subsequent one, and any movable meter before the first one */
+ const MeterSection* other = &meter_section_at_locked (imaginary, frame);
+ if ((!section->movable() && other->movable()) || (!other->movable() && section->movable() && other->frame() >= frame)) {
+ return;
+ }
+ MeterSection* prev_m = 0;
+
+ if (!section->movable()) {
+ /* lock the first tempo to our first meter */
+ if (!set_active_tempos (imaginary, frame)) {
+ return;
+ }
+ TempoSection* first_t = &first_tempo();
+ Metrics future_map;
+ TempoSection* new_section = copy_metrics_and_point (future_map, first_t);
+
+ new_section->set_frame (frame);
+ new_section->set_pulse (0.0);
+ new_section->set_active (true);
- std::cerr << "current : " << t->beats_per_minute() << " | " << t->beat() << " | " << t->frame() << std::endl;
- std::cerr << "prev : " << prev_ts->beats_per_minute() << " | " << prev_ts->beat() << " | " << prev_ts->frame() << std::endl;
- std::cerr << "calculated : " << prev_ts->tempo_at_beat(t->beat()) << " | " << prev_ts->beat_at_tempo (t->beats_per_minute(), t->frame(), _frame_rate) << " | " << prev_ts->frame_at_tempo(t->beats_per_minute(), t->beat(), _frame_rate) << std::endl;
- std::cerr << " ------" << std::endl;;
+ if (solve_map (future_map, new_section, frame)) {
+ first_t->set_frame (frame);
+ first_t->set_pulse (0.0);
+ first_t->set_active (true);
+ solve_map (imaginary, first_t, frame);
+ } else {
+ return;
+ }
+ }
+
+ for (Metrics::iterator i = imaginary.begin(); i != imaginary.end(); ++i) {
+ MeterSection* m;
+ if ((m = dynamic_cast<MeterSection*> (*i)) != 0) {
+ if (m == section){
+ /*
+ here we set the beat for this frame.
+ we set it 'incorrectly' to the next bar's first beat
+ and use the delta to find the meter's pulse.
+ */
+ double new_pulse = 0.0;
+ pair<double, BBT_Time> b_bbt;
+
+ if (section->movable()) {
+ const double beats = ((pulse_at_frame_locked (imaginary, frame) - prev_m->pulse()) * prev_m->note_divisor());
+ const double floor_beats = beats - fmod (beats, prev_m->divisions_per_bar());
+ if (floor_beats + prev_m->beat() < section->beat()) {
+ /* disallow position change if it will alter out beat
+ we allow tempo changes to do this in recompute_meters().
+ blocking this is an option, but i'm not convinced that
+ this is what the user would actually want.
+ */
+ return;
+ }
+ b_bbt = make_pair (section->beat(), section->bbt());
+ new_pulse = pulse_at_frame_locked (imaginary, frame);
+ } else {
+ b_bbt = make_pair (0.0, BBT_Time (1, 1, 0));
+ }
+ section->set_frame (frame);
+ section->set_beat (b_bbt);
+ section->set_pulse (new_pulse);
+ prev_m = m;
+ continue;
}
- prev_ts = t;
+ if (prev_m) {
+ double new_pulse = 0.0;
+ if (m->position_lock_style() == MusicTime) {
+ new_pulse = prev_m->pulse() + ((m->bbt().bars - prev_m->bbt().bars) * prev_m->divisions_per_bar() / prev_m->note_divisor());
+ m->set_frame (frame_at_pulse_locked (imaginary, new_pulse));
+ if (m->frame() > section->frame()) {
+ /* moving 'section' will affect later meters' beat (but not bbt).*/
+ pair<double, BBT_Time> new_beat (((new_pulse - prev_m->pulse()) * prev_m->note_divisor()) + prev_m->beat(), m->bbt());
+ m->set_beat (new_beat);
+ }
+ } else {
+ pair<double, BBT_Time> b_bbt;
+ if (m->movable()) {
+ const double beats = ((pulse_at_frame_locked (imaginary, m->frame()) - prev_m->pulse()) * prev_m->note_divisor());
+ const double floor_beats = beats - fmod (beats , prev_m->divisions_per_bar());
+ b_bbt = make_pair (floor_beats + prev_m->beat()
+ , BBT_Time ((floor_beats / prev_m->divisions_per_bar()) + prev_m->bbt().bars, 1, 0));
+ const double true_pulse = prev_m->pulse() + (floor_beats / prev_m->note_divisor());
+ const double pulse_off = true_pulse - (beats / prev_m->note_divisor()) - prev_m->pulse();
+ new_pulse = true_pulse - pulse_off;
+ } else {
+ b_bbt = make_pair (0.0, BBT_Time (1, 1, 0));
+ new_pulse = 0.0;
+ }
+ m->set_beat (b_bbt);
+ }
+ m->set_pulse (new_pulse);
+ }
+ prev_m = m;
}
}
- std::cerr << "end dump ------";
- prev_ts = 0;
- */
- return false;
+ MetricSectionFrameSorter fcmp;
+ imaginary.sort (fcmp);
+ if (section->position_lock_style() == MusicTime) {
+ /* we're setting the frame */
+ section->set_position_lock_style (AudioTime);
+ recompute_meters (imaginary);
+ section->set_position_lock_style (MusicTime);
+ } else {
+ recompute_meters (imaginary);
+ }
+ //dump (imaginary, std::cerr);
}
void
-TempoMap::solve_map (Metrics& imaginary, MeterSection* section, const Meter& mt, const double& beat)
+TempoMap::solve_map (Metrics& imaginary, MeterSection* section, const double& pulse)
{
- MeterSection* prev_ms = 0;
+ MeterSection* prev_m = 0;
+ MeterSection* section_prev = 0;
- pair<double, BBT_Time> b_bbt = make_pair (beat, BBT_Time (1, 1, 0));
- section->set_beat (b_bbt);
- MetricSectionSorter cmp;
- imaginary.sort (cmp);
+ section->set_pulse (pulse);
for (Metrics::iterator i = imaginary.begin(); i != imaginary.end(); ++i) {
MeterSection* m;
if ((m = dynamic_cast<MeterSection*> (*i)) != 0) {
- if (prev_ms) {
- if (m->beat() > beat){
- section->set_frame (frame_at_beat_locked (imaginary, beat));
- prev_ms = section;
- continue;
- }
+ if (m == section){
+ section_prev = prev_m;
+ continue;
+ }
+ if (prev_m) {
+ double new_pulse = 0.0;
if (m->position_lock_style() == MusicTime) {
- m->set_frame (frame_at_beat_locked (imaginary, m->beat()));
+ new_pulse = prev_m->pulse() + ((m->bbt().bars - prev_m->bbt().bars) * prev_m->divisions_per_bar() / prev_m->note_divisor());
+ m->set_frame (frame_at_pulse_locked (imaginary, new_pulse));
+
+ if (new_pulse > section->pulse()) {
+ /* moving 'section' will affect later meters' beat (but not bbt).*/
+ pair<double, BBT_Time> new_beat (((new_pulse - prev_m->pulse()) * prev_m->note_divisor()) + prev_m->beat(), m->bbt());
+ m->set_beat (new_beat);
+ }
} else {
- pair<double, BBT_Time> b_bbt = make_pair (beat_at_frame_locked (imaginary, m->frame()), BBT_Time (1, 1, 0));
+ pair<double, BBT_Time> b_bbt;
+ if (m->movable()) {
+ const double beats = ((pulse_at_frame_locked (imaginary, m->frame()) - prev_m->pulse()) * prev_m->note_divisor());
+ const double floor_beats = beats - fmod (beats, prev_m->divisions_per_bar());
+ b_bbt = make_pair (floor_beats + prev_m->beat()
+ , BBT_Time ((floor_beats / prev_m->divisions_per_bar()) + prev_m->bbt().bars, 1, 0));
+ const double true_pulse = prev_m->pulse() + (floor_beats / prev_m->note_divisor());
+ const double pulse_off = true_pulse - (beats / prev_m->note_divisor()) - prev_m->pulse();
+ new_pulse = true_pulse - pulse_off;
+ } else {
+ b_bbt = make_pair (0.0, BBT_Time (1, 1, 0));
+ }
m->set_beat (b_bbt);
}
+ m->set_pulse (new_pulse);
}
- prev_ms = m;
+ prev_m = m;
}
}
- MetricSectionFrameSorter fcmp;
- //imaginary.sort (fcmp);
+ if (section_prev) {
+ const double beats = ((pulse - section_prev->pulse()) * section_prev->note_divisor());
+ const int32_t bars = (beats + 1) / section_prev->divisions_per_bar();
+ pair<double, BBT_Time> b_bbt = make_pair (beats + section_prev->beat(), BBT_Time (bars + section_prev->bbt().bars, 1, 0));
+ section->set_beat (b_bbt);
+ section->set_frame (frame_at_pulse_locked (imaginary, pulse));
+ }
+ MetricSectionSorter cmp;
+ imaginary.sort (cmp);
if (section->position_lock_style() == AudioTime) {
- /* we're setting the beat */
+ /* we're setting the pulse */
section->set_position_lock_style (MusicTime);
recompute_meters (imaginary);
section->set_position_lock_style (AudioTime);
} else {
recompute_meters (imaginary);
}
+}
+
+/** places a copy of _metrics into copy and returns a pointer
+ * to section's equivalent in copy.
+ */
+TempoSection*
+TempoMap::copy_metrics_and_point (Metrics& copy, TempoSection* section)
+{
+ TempoSection* t;
+ MeterSection* m;
+ TempoSection* ret = 0;
+
+ for (Metrics::iterator i = _metrics.begin(); i != _metrics.end(); ++i) {
+ if ((t = dynamic_cast<TempoSection*> (*i)) != 0) {
+ if (t == section) {
+ if (t->position_lock_style() == MusicTime) {
+ ret = new TempoSection (t->pulse(), t->beats_per_minute(), t->note_type(), t->type());
+ ret->set_frame (t->frame());
+ } else {
+ ret = new TempoSection (t->frame(), t->beats_per_minute(), t->note_type(), t->type());
+ ret->set_pulse (t->pulse());
+ }
+ ret->set_active (t->active());
+ ret->set_movable (t->movable());
+ copy.push_back (ret);
+ continue;
+ }
+ TempoSection* cp = 0;
+ if (t->position_lock_style() == MusicTime) {
+ cp = new TempoSection (t->pulse(), t->beats_per_minute(), t->note_type(), t->type());
+ cp->set_frame (t->frame());
+ } else {
+ cp = new TempoSection (t->frame(), t->beats_per_minute(), t->note_type(), t->type());
+ cp->set_pulse (t->pulse());
+ }
+ cp->set_active (t->active());
+ cp->set_movable (t->movable());
+ copy.push_back (cp);
+ }
+ if ((m = dynamic_cast<MeterSection *> (*i)) != 0) {
+ MeterSection* cp = 0;
+ if (m->position_lock_style() == MusicTime) {
+ cp = new MeterSection (m->pulse(), m->beat(), m->bbt(), m->divisions_per_bar(), m->note_divisor());
+ cp->set_frame (m->frame());
+ } else {
+ cp = new MeterSection (m->frame(), m->beat(), m->bbt(), m->divisions_per_bar(), m->note_divisor());
+ cp->set_pulse (m->pulse());
+ }
+ cp->set_movable (m->movable());
+ copy.push_back (cp);
+ }
+ }
+
+ return ret;
+}
+
+bool
+TempoMap::can_solve_bbt (TempoSection* ts, const BBT_Time& bbt)
+{
+ Metrics copy;
+ TempoSection* new_section = 0;
+
+ {
+ Glib::Threads::RWLock::ReaderLock lm (lock);
+ new_section = copy_metrics_and_point (copy, ts);
+ }
+
+ double const beat = bbt_to_beats_locked (copy, bbt);
+ bool ret = solve_map (copy, new_section, pulse_at_beat_locked (copy, beat));
+
+ Metrics::const_iterator d = copy.begin();
+ while (d != copy.end()) {
+ delete (*d);
+ ++d;
+ }
+
+ return ret;
+}
+
+/**
+* This is for a gui that needs to know the frame of a tempo section if it were to be moved to some bbt time,
+* taking any possible reordering as a consequence of this into account.
+* @param section - the section to be altered
+* @param bpm - the new Tempo
+* @param bbt - the bbt where the altered tempo will fall
+* @return returns - the position in frames where the new tempo section will lie.
+*/
+framepos_t
+TempoMap::predict_tempo_frame (TempoSection* section, const BBT_Time& bbt)
+{
+ Glib::Threads::RWLock::ReaderLock lm (lock);
+ Metrics future_map;
+ framepos_t ret = 0;
+ TempoSection* new_section = copy_metrics_and_point (future_map, section);
+
+ const double beat = bbt_to_beats_locked (future_map, bbt);
+
+ if (solve_map (future_map, new_section, pulse_at_beat_locked (future_map, beat))) {
+ ret = new_section->frame();
+ } else {
+ ret = frame_at_beat_locked (_metrics, beat);
+ }
+
+ Metrics::const_iterator d = future_map.begin();
+ while (d != future_map.end()) {
+ delete (*d);
+ ++d;
+ }
+ return ret;
+}
+
+double
+TempoMap::predict_tempo_pulse (TempoSection* section, const framepos_t& frame)
+{
+ Glib::Threads::RWLock::ReaderLock lm (lock);
+ Metrics future_map;
+ double ret = 0.0;
+ TempoSection* new_section = copy_metrics_and_point (future_map, section);
+
+ if (solve_map (future_map, new_section, frame)) {
+ ret = new_section->pulse();
+ } else {
+ ret = pulse_at_frame_locked (_metrics, frame);
+ }
+
+ Metrics::const_iterator d = future_map.begin();
+ while (d != future_map.end()) {
+ delete (*d);
+ ++d;
+ }
+ return ret;
+}
+
+void
+TempoMap::gui_move_tempo_frame (TempoSection* ts, const framepos_t& frame)
+{
+ Metrics future_map;
+ {
+ Glib::Threads::RWLock::WriterLock lm (lock);
+ TempoSection* new_section = copy_metrics_and_point (future_map, ts);
+ if (solve_map (future_map, new_section, frame)) {
+ solve_map (_metrics, ts, frame);
+ }
+ }
+
+ Metrics::const_iterator d = future_map.begin();
+ while (d != future_map.end()) {
+ delete (*d);
+ ++d;
+ }
+
+ MetricPositionChanged (); // Emit Signal
+}
+
+void
+TempoMap::gui_move_tempo_beat (TempoSection* ts, const double& beat)
+{
+ Metrics future_map;
+ {
+ Glib::Threads::RWLock::WriterLock lm (lock);
+ TempoSection* new_section = copy_metrics_and_point (future_map, ts);
+ if (solve_map (future_map, new_section, pulse_at_beat_locked (future_map, beat))) {
+ solve_map (_metrics, ts, pulse_at_beat_locked (_metrics, beat));
+ }
+ }
+
+ Metrics::const_iterator d = future_map.begin();
+ while (d != future_map.end()) {
+ delete (*d);
+ ++d;
+ }
+
+ MetricPositionChanged (); // Emit Signal
+}
+
+void
+TempoMap::gui_move_meter (MeterSection* ms, const framepos_t& frame)
+{
+ {
+ Glib::Threads::RWLock::WriterLock lm (lock);
+ solve_map (_metrics, ms, frame);
+ }
+
+ MetricPositionChanged (); // Emit Signal
+}
+
+void
+TempoMap::gui_move_meter (MeterSection* ms, const double& beat)
+{
+ {
+ Glib::Threads::RWLock::WriterLock lm (lock);
+ solve_map (_metrics, ms, pulse_at_beat_locked (_metrics, beat));
+ }
+ MetricPositionChanged (); // Emit Signal
}
-void
-TempoMap::solve_map (Metrics& imaginary, MeterSection* section, const Meter& mt, const framepos_t& frame)
+bool
+TempoMap::gui_change_tempo (TempoSection* ts, const Tempo& bpm)
{
- MeterSection* prev_ms = 0;
-
- section->set_frame (frame);
- MetricSectionFrameSorter fcmp;
- imaginary.sort (fcmp);
+ Metrics future_map;
+ bool can_solve = false;
+ {
+ Glib::Threads::RWLock::WriterLock lm (lock);
+ TempoSection* new_section = copy_metrics_and_point (future_map, ts);
+ new_section->set_beats_per_minute (bpm.beats_per_minute());
+ recompute_tempos (future_map);
- for (Metrics::iterator i = imaginary.begin(); i != imaginary.end(); ++i) {
- MeterSection* m;
- if ((m = dynamic_cast<MeterSection*> (*i)) != 0) {
- if (prev_ms) {
- if (m->frame() > frame){
- pair<double, BBT_Time> b_bbt = make_pair (beat_at_frame_locked (imaginary, frame), BBT_Time (1, 1, 0));
- section->set_beat (b_bbt);
- prev_ms = section;
- continue;
- }
- if (m->position_lock_style() == MusicTime) {
- m->set_frame (frame_at_beat_locked (imaginary, m->beat()));
- } else {
- pair<double, BBT_Time> b_bbt = make_pair (beat_at_frame_locked (imaginary, m->frame()), BBT_Time (1, 1, 0));
- m->set_beat (b_bbt);
- }
- }
- prev_ms = m;
+ if (check_solved (future_map, true)) {
+ ts->set_beats_per_minute (bpm.beats_per_minute());
+ recompute_map (_metrics);
+ can_solve = true;
}
}
- MetricSectionSorter cmp;
- imaginary.sort (cmp);
-
- if (section->position_lock_style() == MusicTime) {
- /* we're setting the frame */
- section->set_position_lock_style (AudioTime);
- recompute_map (imaginary);
- section->set_position_lock_style (MusicTime);
- } else {
- recompute_map (imaginary);
+ Metrics::const_iterator d = future_map.begin();
+ while (d != future_map.end()) {
+ delete (*d);
+ ++d;
}
+ if (can_solve) {
+ MetricPositionChanged (); // Emit Signal
+ }
+ return can_solve;
}
framecnt_t
{
Glib::Threads::RWLock::ReaderLock lm (lock);
- Metrics::const_iterator i;
- TempoSection* first = 0;
- TempoSection* second = 0;
-
- for (i = _metrics.begin(); i != _metrics.end(); ++i) {
- TempoSection* t;
-
- if ((t = dynamic_cast<TempoSection*> (*i)) != 0) {
-
- if ((*i)->frame() > pos) {
- second = t;
- break;
- }
-
- first = t;
- }
- }
- if (first && second) {
- double const tick_at_time = first->tick_at_frame (pos, _frame_rate);
- double const bbt_ticks = bbt.ticks + (bbt.beats * BBT_Time::ticks_per_beat);
- double const time_at_bbt = first->frame_at_tick (tick_at_time + bbt_ticks, _frame_rate);
-
- return time_at_bbt - pos;
- }
- double const ticks = bbt.ticks + (bbt.beats * BBT_Time::ticks_per_beat);
+ const double tick_at_time = beat_at_frame_locked (_metrics, pos) * BBT_Time::ticks_per_beat;
+ const double bbt_ticks = bbt.ticks + (bbt.beats * BBT_Time::ticks_per_beat);
+ const double total_beats = (tick_at_time + bbt_ticks) / BBT_Time::ticks_per_beat;
- return (framecnt_t) floor ((ticks / BBT_Time::ticks_per_beat) * first->frames_per_beat(_frame_rate));
+ return frame_at_beat_locked (_metrics, total_beats);
}
framepos_t
TempoMap::round_to_beat_subdivision (framepos_t fr, int sub_num, RoundMode dir)
{
Glib::Threads::RWLock::ReaderLock lm (lock);
-
- uint32_t ticks = (uint32_t) floor (tick_at_frame_locked (_metrics, fr) + 0.5);
+ uint32_t ticks = (uint32_t) floor (beat_at_frame_locked (_metrics, fr) * BBT_Time::ticks_per_beat);
uint32_t beats = (uint32_t) floor (ticks / BBT_Time::ticks_per_beat);
- uint32_t ticks_one_subdivisions_worth = (uint32_t)BBT_Time::ticks_per_beat / sub_num;
+ uint32_t ticks_one_subdivisions_worth = (uint32_t) BBT_Time::ticks_per_beat / sub_num;
ticks -= beats * BBT_Time::ticks_per_beat;
/* on the subdivision, do nothing */
}
}
- return frame_at_tick_locked (_metrics, (beats * BBT_Time::ticks_per_beat) + ticks);
+
+ const framepos_t ret_frame = frame_at_beat_locked (_metrics, beats + (ticks / BBT_Time::ticks_per_beat));
+
+ return ret_frame;
+}
+
+void
+TempoMap::round_bbt (BBT_Time& when, const int32_t& sub_num)
+{
+ if (sub_num == -1) {
+ const double bpb = meter_section_at_beat (bbt_to_beats_locked (_metrics, when)).divisions_per_bar();
+ if ((double) when.beats > bpb / 2.0) {
+ ++when.bars;
+ }
+ when.beats = 1;
+ when.ticks = 0;
+ return;
+ } else if (sub_num == 0) {
+ const double bpb = meter_section_at_beat (bbt_to_beats_locked (_metrics, when)).divisions_per_bar();
+ if ((double) when.ticks > BBT_Time::ticks_per_beat / 2.0) {
+ ++when.beats;
+ while ((double) when.beats > bpb) {
+ ++when.bars;
+ when.beats -= (uint32_t) floor (bpb);
+ }
+ }
+ when.ticks = 0;
+ return;
+ }
+ const uint32_t ticks_one_subdivisions_worth = BBT_Time::ticks_per_beat / sub_num;
+ double rem;
+ if ((rem = fmod ((double) when.ticks, (double) ticks_one_subdivisions_worth)) > (ticks_one_subdivisions_worth / 2.0)) {
+ /* closer to the next subdivision, so shift forward */
+
+ when.ticks = when.ticks + (ticks_one_subdivisions_worth - rem);
+
+ if (when.ticks > Timecode::BBT_Time::ticks_per_beat) {
+ ++when.beats;
+ when.ticks -= Timecode::BBT_Time::ticks_per_beat;
+ }
+
+ } else if (rem > 0) {
+ /* closer to previous subdivision, so shift backward */
+
+ if (rem > when.ticks) {
+ if (when.beats == 0) {
+ /* can't go backwards past zero, so ... */
+ }
+ /* step back to previous beat */
+ --when.beats;
+ when.ticks = Timecode::BBT_Time::ticks_per_beat - rem;
+ } else {
+ when.ticks = when.ticks - rem;
+ }
+ }
}
framepos_t
{
Glib::Threads::RWLock::ReaderLock lm (lock);
- double const beat_at_framepos = beat_at_frame_locked (_metrics, frame);
-
+ const double beat_at_framepos = beat_at_frame_locked (_metrics, frame);
BBT_Time bbt (beats_to_bbt_locked (_metrics, beat_at_framepos));
switch (type) {
/* find bar previous to 'frame' */
bbt.beats = 1;
bbt.ticks = 0;
- return frame_time (bbt);
+ return frame_time_locked (_metrics, bbt);
} else if (dir > 0) {
/* find bar following 'frame' */
++bbt.bars;
bbt.beats = 1;
bbt.ticks = 0;
- return frame_time (bbt);
+ return frame_time_locked (_metrics, bbt);
} else {
/* true rounding: find nearest bar */
- framepos_t raw_ft = frame_time (bbt);
+ framepos_t raw_ft = frame_time_locked (_metrics, bbt);
bbt.beats = 1;
bbt.ticks = 0;
- framepos_t prev_ft = frame_time (bbt);
+ framepos_t prev_ft = frame_time_locked (_metrics, bbt);
++bbt.bars;
- framepos_t next_ft = frame_time (bbt);
+ framepos_t next_ft = frame_time_locked (_metrics, bbt);
if ((raw_ft - prev_ft) > (next_ft - prev_ft) / 2) {
return next_ft;
framepos_t lower, framepos_t upper)
{
Glib::Threads::RWLock::ReaderLock lm (lock);
- uint32_t const upper_beat = (uint32_t) floor (beat_at_frame_locked (_metrics, upper));
- uint32_t cnt = (uint32_t) ceil (beat_at_frame_locked (_metrics, lower));
-
- while (cnt <= upper_beat) {
- framecnt_t const pos = frame_at_beat_locked (_metrics, cnt);
- MeterSection const meter = meter_section_at (pos);
-
- Tempo const tempo = tempo_at (pos);
- BBT_Time const bbt = beats_to_bbt_locked (_metrics, (double) cnt);
-
- points.push_back (BBTPoint (meter, tempo, pos, bbt.bars, bbt.beats));
+ const int32_t upper_beat = (int32_t) floor (beat_at_frame_locked (_metrics, upper));
+ int32_t cnt = ceil (beat_at_frame_locked (_metrics, lower));
+ framecnt_t pos = 0;
+ /* although the map handles negative beats, bbt doesn't. */
+ if (cnt < 0.0) {
+ cnt = 0.0;
+ }
+ while (pos < upper) {
+ pos = frame_at_beat_locked (_metrics, cnt);
+ const TempoSection tempo = tempo_section_at_locked (_metrics, pos);
+ const MeterSection meter = meter_section_at_locked (_metrics, pos);
+ const BBT_Time bbt = beats_to_bbt (cnt);
+ points.push_back (BBTPoint (meter, tempo_at_locked (_metrics, pos), pos, bbt.bars, bbt.beats, tempo.c_func()));
++cnt;
}
}
TempoMap::tempo_section_at (framepos_t frame) const
{
Glib::Threads::RWLock::ReaderLock lm (lock);
+ return tempo_section_at_locked (_metrics, frame);
+}
+const TempoSection&
+TempoMap::tempo_section_at_locked (const Metrics& metrics, framepos_t frame) const
+{
Metrics::const_iterator i;
TempoSection* prev = 0;
- for (i = _metrics.begin(); i != _metrics.end(); ++i) {
+ for (i = metrics.begin(); i != metrics.end(); ++i) {
TempoSection* t;
if ((t = dynamic_cast<TempoSection*> (*i)) != 0) {
-
- if ((*i)->frame() > frame) {
+ if (!t->active()) {
+ continue;
+ }
+ if (prev && t->frame() > frame) {
break;
}
return *prev;
}
+const TempoSection&
+TempoMap::tempo_section_at_beat_locked (const Metrics& metrics, const double& beat) const
+{
+ TempoSection* prev_t = 0;
+ const MeterSection* prev_m = &meter_section_at_beat_locked (metrics, beat);
+
+ for (Metrics::const_iterator i = metrics.begin(); i != metrics.end(); ++i) {
+ TempoSection* t;
+ if ((t = dynamic_cast<TempoSection*> (*i)) != 0) {
+ if (prev_t && ((t->pulse() - prev_m->pulse()) * prev_m->note_divisor()) + prev_m->beat() > beat) {
+ break;
+ }
+ prev_t = t;
+ }
+
+ }
+ return *prev_t;
+}
+
/* don't use this to calculate length (the tempo is only correct for this frame).
do that stuff based on the beat_at_frame and frame_at_beat api
*/
double
-TempoMap::frames_per_beat_at (framepos_t frame, framecnt_t sr) const
+TempoMap::frames_per_beat_at (const framepos_t& frame, const framecnt_t& sr) const
{
Glib::Threads::RWLock::ReaderLock lm (lock);
- const TempoSection* ts_at = &tempo_section_at (frame);
+ const TempoSection* ts_at = &tempo_section_at_locked (_metrics, frame);
const TempoSection* ts_after = 0;
Metrics::const_iterator i;
TempoSection* t;
if ((t = dynamic_cast<TempoSection*> (*i)) != 0) {
-
+ if (!t->active()) {
+ continue;
+ }
if ((*i)->frame() > frame) {
ts_after = t;
break;
}
const Tempo
-TempoMap::tempo_at (framepos_t frame) const
+TempoMap::tempo_at_locked (const Metrics& metrics, const framepos_t& frame) const
{
- Glib::Threads::RWLock::ReaderLock lm (lock);
-
- TempoMetric m (metric_at (frame));
- TempoSection* prev_ts = 0;
+ TempoSection* prev_t = 0;
Metrics::const_iterator i;
for (i = _metrics.begin(); i != _metrics.end(); ++i) {
TempoSection* t;
if ((t = dynamic_cast<TempoSection*> (*i)) != 0) {
- if ((prev_ts) && t->frame() > frame) {
- /* this is the one past frame */
- double const ret = prev_ts->tempo_at_frame (frame, _frame_rate);
- Tempo const ret_tempo (ret, m.tempo().note_type ());
+ if (!t->active()) {
+ continue;
+ }
+ if ((prev_t) && t->frame() > frame) {
+ /* t is the section past frame */
+ const double ret_bpm = prev_t->tempo_at_frame (frame, _frame_rate) * prev_t->note_type();
+ const Tempo ret_tempo (ret_bpm, prev_t->note_type());
return ret_tempo;
}
- prev_ts = t;
+ prev_t = t;
}
}
- return m.tempo();
+ const double ret = prev_t->beats_per_minute();
+ const Tempo ret_tempo (ret, prev_t->note_type ());
+
+ return ret_tempo;
}
-const MeterSection&
-TempoMap::meter_section_at (framepos_t frame) const
+const Tempo
+TempoMap::tempo_at (const framepos_t& frame) const
{
Glib::Threads::RWLock::ReaderLock lm (lock);
+ return tempo_at_locked (_metrics, frame);
+}
+const MeterSection&
+TempoMap::meter_section_at_locked (const Metrics& metrics, framepos_t frame) const
+{
Metrics::const_iterator i;
MeterSection* prev = 0;
- for (i = _metrics.begin(); i != _metrics.end(); ++i) {
- MeterSection* t;
+ for (i = metrics.begin(); i != metrics.end(); ++i) {
+ MeterSection* m;
- if ((t = dynamic_cast<MeterSection*> (*i)) != 0) {
+ if ((m = dynamic_cast<MeterSection*> (*i)) != 0) {
- if ((*i)->frame() > frame) {
+ if (prev && (*i)->frame() > frame) {
break;
}
- prev = t;
+ prev = m;
}
}
return *prev;
}
+
const MeterSection&
-TempoMap::meter_section_at (double beat) const
+TempoMap::meter_section_at (framepos_t frame) const
{
Glib::Threads::RWLock::ReaderLock lm (lock);
+ return meter_section_at_locked (_metrics, frame);
+}
- Metrics::const_iterator i;
- MeterSection* prev = 0;
-
- for (i = _metrics.begin(); i != _metrics.end(); ++i) {
- MeterSection* t;
-
- if ((t = dynamic_cast<MeterSection*> (*i)) != 0) {
+const MeterSection&
+TempoMap::meter_section_at_beat_locked (const Metrics& metrics, const double& beat) const
+{
+ MeterSection* prev_m = 0;
- if ((*i)->beat() > beat) {
+ for (Metrics::const_iterator i = metrics.begin(); i != metrics.end(); ++i) {
+ MeterSection* m;
+ if ((m = dynamic_cast<MeterSection*> (*i)) != 0) {
+ if (prev_m && m->beat() > beat) {
break;
}
-
- prev = t;
+ prev_m = m;
}
- }
- if (prev == 0) {
- fatal << endmsg;
- abort(); /*NOTREACHED*/
}
+ return *prev_m;
+}
- return *prev;
+const MeterSection&
+TempoMap::meter_section_at_beat (double beat) const
+{
+ Glib::Threads::RWLock::ReaderLock lm (lock);
+ return meter_section_at_beat_locked (_metrics, beat);
}
const Meter&
return m.meter();
}
+void
+TempoMap::fix_legacy_session ()
+{
+ MeterSection* prev_m = 0;
+ TempoSection* prev_t = 0;
+
+ for (Metrics::iterator i = _metrics.begin(); i != _metrics.end(); ++i) {
+ MeterSection* m;
+ TempoSection* t;
+
+ if ((m = dynamic_cast<MeterSection*>(*i)) != 0) {
+ if (!m->movable()) {
+ pair<double, BBT_Time> bbt = make_pair (0.0, BBT_Time (1, 1, 0));
+ m->set_beat (bbt);
+ m->set_pulse (0.0);
+ m->set_frame (0);
+ m->set_position_lock_style (AudioTime);
+ prev_m = m;
+ continue;
+ }
+ if (prev_m) {
+ pair<double, BBT_Time> start = make_pair (((m->bbt().bars - 1) * prev_m->note_divisor())
+ + (m->bbt().beats - 1)
+ + (m->bbt().ticks / BBT_Time::ticks_per_beat)
+ , m->bbt());
+ m->set_beat (start);
+ const double start_beat = ((m->bbt().bars - 1) * prev_m->note_divisor())
+ + (m->bbt().beats - 1)
+ + (m->bbt().ticks / BBT_Time::ticks_per_beat);
+ m->set_pulse (start_beat / prev_m->note_divisor());
+ }
+ prev_m = m;
+ } else if ((t = dynamic_cast<TempoSection*>(*i)) != 0) {
+
+ if (!t->active()) {
+ continue;
+ }
+
+ if (!t->movable()) {
+ t->set_pulse (0.0);
+ t->set_frame (0);
+ t->set_position_lock_style (AudioTime);
+ prev_t = t;
+ continue;
+ }
+
+ if (prev_t) {
+ const double beat = ((t->legacy_bbt().bars - 1) * ((prev_m) ? prev_m->note_divisor() : 4.0))
+ + (t->legacy_bbt().beats - 1)
+ + (t->legacy_bbt().ticks / BBT_Time::ticks_per_beat);
+ if (prev_m) {
+ t->set_pulse (beat / prev_m->note_divisor());
+ } else {
+ /* really shouldn't happen but.. */
+ t->set_pulse (beat / 4.0);
+ }
+ }
+ prev_t = t;
+ }
+ }
+}
+
XMLNode&
TempoMap::get_state ()
{
XMLNodeList nlist;
XMLNodeConstIterator niter;
Metrics old_metrics (_metrics);
- MeterSection* last_meter = 0;
_metrics.clear();
nlist = node.children();
try {
TempoSection* ts = new TempoSection (*child);
_metrics.push_back (ts);
-
- if (ts->bar_offset() < 0.0) {
- if (last_meter) {
- //ts->update_bar_offset_from_bbt (*last_meter);
- }
- }
}
catch (failed_constructor& err){
try {
MeterSection* ms = new MeterSection (*child);
_metrics.push_back (ms);
- last_meter = ms;
}
catch (failed_constructor& err) {
MetricSectionSorter cmp;
_metrics.sort (cmp);
}
- /* check for legacy sessions where bbt was the base musical unit for tempo */
- for (Metrics::iterator i = _metrics.begin(); i != _metrics.end(); ++i) {
- MeterSection* prev_ms;
- TempoSection* prev_ts;
- if ((prev_ms = dynamic_cast<MeterSection*>(*i)) != 0) {
- if (prev_ms->beat() < 0.0) {
- /*XX we cannot possibly make this work??. */
- pair<double, BBT_Time> start = make_pair (((prev_ms->bbt().bars - 1) * 4.0) + (prev_ms->bbt().beats - 1) + (prev_ms->bbt().ticks / BBT_Time::ticks_per_beat), prev_ms->bbt());
- prev_ms->set_beat (start);
- }
- } else if ((prev_ts = dynamic_cast<TempoSection*>(*i)) != 0) {
- if (prev_ts->beat() < 0.0) {
- double const start = ((prev_ts->legacy_bbt().bars - 1) * 4.0) + (prev_ts->legacy_bbt().beats - 1) + (prev_ts->legacy_bbt().ticks / BBT_Time::ticks_per_beat);
- prev_ts->set_beat (start);
+ /* check for legacy sessions where bbt was the base musical unit for tempo */
+ for (Metrics::const_iterator i = _metrics.begin(); i != _metrics.end(); ++i) {
+ TempoSection* t;
+ if ((t = dynamic_cast<TempoSection*> (*i)) != 0) {
+ if (t->legacy_bbt().bars != 0) {
+ fix_legacy_session();
+ break;
}
+ break;
}
}
+
/* check for multiple tempo/meters at the same location, which
ardour2 somehow allowed.
*/
for (Metrics::iterator i = _metrics.begin(); i != _metrics.end(); ++i) {
if (prev != _metrics.end()) {
MeterSection* ms;
- MeterSection* prev_ms;
+ MeterSection* prev_m;
TempoSection* ts;
- TempoSection* prev_ts;
- if ((prev_ms = dynamic_cast<MeterSection*>(*prev)) != 0 && (ms = dynamic_cast<MeterSection*>(*i)) != 0) {
- if (prev_ms->beat() == ms->beat()) {
- cerr << string_compose (_("Multiple meter definitions found at %1"), prev_ms->beat()) << endmsg;
- error << string_compose (_("Multiple meter definitions found at %1"), prev_ms->beat()) << endmsg;
+ TempoSection* prev_t;
+ if ((prev_m = dynamic_cast<MeterSection*>(*prev)) != 0 && (ms = dynamic_cast<MeterSection*>(*i)) != 0) {
+ if (prev_m->pulse() == ms->pulse()) {
+ cerr << string_compose (_("Multiple meter definitions found at %1"), prev_m->pulse()) << endmsg;
+ error << string_compose (_("Multiple meter definitions found at %1"), prev_m->pulse()) << endmsg;
return -1;
}
- } else if ((prev_ts = dynamic_cast<TempoSection*>(*prev)) != 0 && (ts = dynamic_cast<TempoSection*>(*i)) != 0) {
- if (prev_ts->beat() == ts->beat()) {
- cerr << string_compose (_("Multiple tempo definitions found at %1"), prev_ts->beat()) << endmsg;
- error << string_compose (_("Multiple tempo definitions found at %1"), prev_ts->beat()) << endmsg;
+ } else if ((prev_t = dynamic_cast<TempoSection*>(*prev)) != 0 && (ts = dynamic_cast<TempoSection*>(*i)) != 0) {
+ if (prev_t->pulse() == ts->pulse()) {
+ cerr << string_compose (_("Multiple tempo definitions found at %1"), prev_t->pulse()) << endmsg;
+ error << string_compose (_("Multiple tempo definitions found at %1"), prev_t->pulse()) << endmsg;
return -1;
}
}
}
void
-TempoMap::dump (std::ostream& o) const
+TempoMap::dump (const Metrics& metrics, std::ostream& o) const
{
Glib::Threads::RWLock::ReaderLock lm (lock, Glib::Threads::TRY_LOCK);
const MeterSection* m;
const TempoSection* t;
+ const TempoSection* prev_t = 0;
- for (Metrics::const_iterator i = _metrics.begin(); i != _metrics.end(); ++i) {
+ for (Metrics::const_iterator i = metrics.begin(); i != metrics.end(); ++i) {
if ((t = dynamic_cast<const TempoSection*>(*i)) != 0) {
- o << "Tempo @ " << *i << " (Bar-offset: " << t->bar_offset() << ") " << t->beats_per_minute() << " BPM (pulse = 1/" << t->note_type() << ") at " << t->beat() << " frame= " << t->frame() << " (movable? "
- << t->movable() << ')' << endl;
+ o << "Tempo @ " << *i << t->beats_per_minute() << " BPM (pulse = 1/" << t->note_type() << ") at " << t->pulse() << " frame= " << t->frame() << " (movable? "
+ << t->movable() << ')' << " pos lock: " << enum_2_string (t->position_lock_style()) << std::endl;
+ o << "current : " << t->beats_per_minute() << " | " << t->pulse() << " | " << t->frame() << std::endl;
+ if (prev_t) {
+ o << "previous : " << prev_t->beats_per_minute() << " | " << prev_t->pulse() << " | " << prev_t->frame() << std::endl;
+ o << "calculated : " << prev_t->tempo_at_pulse (t->pulse()) * prev_t->note_type() << " | " << prev_t->pulse_at_tempo (t->pulses_per_minute(), t->frame(), _frame_rate) << " | " << prev_t->frame_at_tempo (t->pulses_per_minute(), t->pulse(), _frame_rate) << std::endl;
+ }
+ prev_t = t;
} else if ((m = dynamic_cast<const MeterSection*>(*i)) != 0) {
o << "Meter @ " << *i << ' ' << m->divisions_per_bar() << '/' << m->note_divisor() << " at " << m->bbt() << " frame= " << m->frame()
- << " (movable? " << m->movable() << ')' << endl;
+ << " pulse: " << m->pulse() << " beat : " << m->beat() << " pos lock: " << enum_2_string (m->position_lock_style()) << " (movable? " << m->movable() << ')' << endl;
}
}
+ o << "------" << std::endl;
}
int
if (prev) {
if (ts){
if ((t = dynamic_cast<TempoSection*>(prev)) != 0) {
- ts->set_beat (t->beat());
+ if (!t->active()) {
+ continue;
+ }
+ ts->set_pulse (t->pulse());
}
if ((m = dynamic_cast<MeterSection*>(prev)) != 0) {
- ts->set_beat (m->beat());
+ ts->set_pulse (m->pulse());
}
ts->set_frame (prev->frame());
if ((m = dynamic_cast<MeterSection*>(prev)) != 0) {
pair<double, BBT_Time> start = make_pair (m->beat(), m->bbt());
ms->set_beat (start);
+ ms->set_pulse (m->pulse());
}
if ((t = dynamic_cast<TempoSection*>(prev)) != 0) {
- pair<double, BBT_Time> start = make_pair (t->beat(), beats_to_bbt_locked (_metrics, t->beat()));
+ if (!t->active()) {
+ continue;
+ }
+ const double beat = beat_at_pulse_locked (_metrics, t->pulse());
+ pair<double, BBT_Time> start = make_pair (beat, beats_to_bbt_locked (_metrics, beat));
ms->set_beat (start);
+ ms->set_pulse (t->pulse());
}
ms->set_frame (prev->frame());
}
// cerr << bbt << endl;
if ((t = dynamic_cast<TempoSection*>(*i)) != 0) {
- t->set_beat (beat_at_frame_locked (_metrics, m->frame()));
+ if (!t->active()) {
+ continue;
+ }
+ t->set_pulse (pulse_at_frame_locked (_metrics, m->frame()));
tempo = t;
- // cerr << "NEW TEMPO, frame = " << (*i)->frame() << " beat = " << (*i)->beat() <<endl;
+ // cerr << "NEW TEMPO, frame = " << (*i)->frame() << " beat = " << (*i)->pulse() <<endl;
} else if ((m = dynamic_cast<MeterSection*>(*i)) != 0) {
bbt_time (m->frame(), bbt);
}
pair<double, BBT_Time> start = make_pair (beat_at_frame_locked (_metrics, m->frame()), bbt);
m->set_beat (start);
+ m->set_pulse (pulse_at_frame_locked (_metrics, m->frame()));
meter = m;
- // cerr << "NEW METER, frame = " << (*i)->frame() << " beat = " << (*i)->beat() <<endl;
+ // cerr << "NEW METER, frame = " << (*i)->frame() << " beat = " << (*i)->pulse() <<endl;
} else {
fatal << _("programming error: unhandled MetricSection type") << endmsg;
abort(); /*NOTREACHED*/
framepos_t
TempoMap::framepos_plus_bbt (framepos_t pos, BBT_Time op) const
{
- cerr << "framepos_plus_bbt - untested" << endl;
Glib::Threads::RWLock::ReaderLock lm (lock);
- Metrics::const_iterator i;
- const MeterSection* meter;
- const MeterSection* m;
- const TempoSection* tempo;
- const TempoSection* next_tempo = 0;
- const TempoSection* t;
- double frames_per_beat;
- framepos_t effective_pos = max (pos, (framepos_t) 0);
-
- meter = &first_meter ();
- tempo = &first_tempo ();
-
- assert (meter);
- assert (tempo);
-
- /* find the starting metrics for tempo & meter */
-
- for (i = _metrics.begin(); i != _metrics.end(); ++i) {
-
- if ((*i)->frame() > effective_pos) {
- break;
- }
-
- if ((t = dynamic_cast<const TempoSection*>(*i)) != 0) {
- tempo = t;
- } else if ((m = dynamic_cast<const MeterSection*>(*i)) != 0) {
- meter = m;
- }
- }
-
- for (i = _metrics.begin(); i != _metrics.end(); ++i) {
- if ((*i)->frame() > effective_pos) {
- if ((t = dynamic_cast<const TempoSection*>(*i)) != 0) {
- next_tempo = t;
- }
- break;
- }
- }
-
- /* We now have:
-
- meter -> the Meter for "pos"
- tempo -> the Tempo for "pos"
- next_tempo -> the Tempo after "pos" or 0
- i -> for first new metric after "pos", possibly metrics.end()
- */
-
- /* now comes the complicated part. we have to add one beat a time,
- checking for a new metric on every beat.
- */
-
- uint64_t bars = 0;
- /* fpb is used for constant tempo */
- frames_per_beat = tempo->frames_per_beat (_frame_rate);
-
- while (op.bars) {
-
- bars++;
- op.bars--;
-
- /* check if we need to use a new metric section: has adding frames moved us
- to or after the start of the next metric section? in which case, use it.
- */
-
- if (i != _metrics.end()) {
- if ((*i)->frame() <= pos) {
-
- /* about to change tempo or meter, so add the
- * number of frames for the bars we've just
- * traversed before we change the
- * frames_per_beat value.
- */
-
- if ((t = dynamic_cast<const TempoSection*>(*i)) != 0) {
- next_tempo = t;
- }
-
- if (next_tempo) {
- pos += tempo->frame_at_beat (bars * meter->divisions_per_bar(), _frame_rate);
- } else {
- pos += llrint (frames_per_beat * (bars * meter->divisions_per_bar()));
- }
-
- bars = 0;
-
- if ((t = dynamic_cast<const TempoSection*>(*i)) != 0) {
- tempo = t;
- } else if ((m = dynamic_cast<const MeterSection*>(*i)) != 0) {
- meter = m;
- }
- ++i;
- frames_per_beat = tempo->frames_per_beat (_frame_rate);
- }
- }
-
- }
-
- if (next_tempo) {
- pos += tempo->frame_at_beat (bars * meter->divisions_per_bar(), _frame_rate);
- } else {
- pos += llrint (frames_per_beat * (bars * meter->divisions_per_bar()));
- }
-
- uint64_t beats = 0;
-
- while (op.beats) {
-
- /* given the current meter, have we gone past the end of the bar ? */
-
- beats++;
- op.beats--;
-
- /* check if we need to use a new metric section: has adding frames moved us
- to or after the start of the next metric section? in which case, use it.
- */
-
- if (i != _metrics.end()) {
- if ((*i)->frame() <= pos) {
-
- /* about to change tempo or meter, so add the
- * number of frames for the beats we've just
- * traversed before we change the
- * frames_per_beat value.
- */
-
- if ((t = dynamic_cast<const TempoSection*>(*i)) != 0) {
- next_tempo = t;
- }
-
- if (next_tempo) {
- pos += tempo->frame_at_beat (beats, _frame_rate);
- } else {
- pos += llrint (beats * frames_per_beat);
- }
-
- beats = 0;
-
- if ((t = dynamic_cast<const TempoSection*>(*i)) != 0) {
- tempo = t;
- } else if ((m = dynamic_cast<const MeterSection*>(*i)) != 0) {
- meter = m;
- }
- ++i;
- frames_per_beat = tempo->frames_per_beat (_frame_rate);
- }
- }
- }
-
- if (next_tempo) {
- pos += tempo->frame_at_beat (beats, _frame_rate);
- } else {
- pos += llrint (beats * frames_per_beat);
+ BBT_Time pos_bbt = beats_to_bbt_locked (_metrics, beat_at_frame_locked (_metrics, pos));
+ pos_bbt.ticks += op.ticks;
+ if (pos_bbt.ticks >= BBT_Time::ticks_per_beat) {
+ ++pos_bbt.beats;
+ pos_bbt.ticks -= BBT_Time::ticks_per_beat;
}
-
- if (op.ticks) {
- pos += tempo->frame_at_tick (op.ticks, _frame_rate);
+ pos_bbt.beats += op.beats;
+ /* the meter in effect will start on the bar */
+ double divisions_per_bar = meter_section_at_beat (bbt_to_beats_locked (_metrics, BBT_Time (pos_bbt.bars + op.bars, 1, 0))).divisions_per_bar();
+ while (pos_bbt.beats >= divisions_per_bar + 1) {
+ ++pos_bbt.bars;
+ divisions_per_bar = meter_section_at_beat (bbt_to_beats_locked (_metrics, BBT_Time (pos_bbt.bars + op.bars, 1, 0))).divisions_per_bar();
+ pos_bbt.beats -= divisions_per_bar;
}
+ pos_bbt.bars += op.bars;
- return pos;
-
+ return frame_time_locked (_metrics, pos_bbt);
}
/** Count the number of beats that are equivalent to distance when going forward,
Evoral::Beats
TempoMap::framewalk_to_beats (framepos_t pos, framecnt_t distance) const
{
- return Evoral::Beats(beat_at_frame (pos + distance) - beat_at_frame (pos));
+ return Evoral::Beats (beat_at_frame (pos + distance) - beat_at_frame (pos));
}
struct bbtcmp {
if ((ts = dynamic_cast<const TempoSection*> (§ion)) != 0) {
o << *((const Tempo*) ts);
} else if ((ms = dynamic_cast<const MeterSection*> (§ion)) != 0) {
- //o << *((const Meter*) ms);
+ o << *((const Meter*) ms);
}
return o;
projects / ardour.git / blobdiff