float ContrastDialog::GetDB()
{
// not good
// why not?
// what if more than one track?
float rms = float(0.0);
AudacityProject *p = GetActiveProject();
TrackListIterator iter(p->GetTracks());
Track *t = iter.First();
if(mT0 > mT1)
{
wxMessageDialog m(NULL, _("Start time after after end time!\nPlease enter reasonable times."), _("Error"), wxOK);
m.ShowModal();
return 1234.0; // 'magic number', but the whole +ve dB range will 'almost' never occur
}
if(mT0 < t->GetStartTime())
mT0 = t->GetStartTime();
if(mT1 > t->GetEndTime())
mT1 = t->GetEndTime();
if(mT0 > mT1)
{
wxMessageDialog m(NULL, _("Times are not reasonable!\nPlease enter reasonable times."), _("Error"), wxOK);
m.ShowModal();
return 1234.0;
}
if(mT0 == mT1)
return 1234.0;
while(t) { // this isn't quite right. What to do if more than one track selected?
((WaveTrack *)t)->GetRMS(&rms, mT0, mT1);
t = iter.Next();
}
return 20.0*log10(rms);
}
double TrackList::GetStartTime() const
{
if (IsEmpty())
return 0.0;
double min = head->t->GetStartTime(); // head->t should be APIfied
ConstTrackListIterator iter(this);
for (Track *t = iter.First(); t; t = iter.Next()) {
double l = t->GetStartTime();
if (l < min)
min = l;
}
return min;
}
void SnapManager::Reinit()
{
int snapTo = mProject->GetSnapTo();
double rate = mProject->GetRate();
wxString format = mProject->GetSelectionFormat();
// No need to reinit if these are still the same
if (snapTo == mSnapTo && rate == mRate && format == mFormat)
{
return;
}
// Save NEW settings
mSnapTo = snapTo;
mRate = rate;
mFormat = format;
mSnapPoints.clear();
// Grab time-snapping prefs (unless otherwise requested)
mSnapToTime = false;
// Look up the format string
if (mSnapTo != SNAP_OFF && !mNoTimeSnap)
{
mSnapToTime = true;
mConverter.SetSampleRate(mRate);
mConverter.SetFormatName(mFormat);
}
// Add a SnapPoint at t=0
mSnapPoints.push_back(SnapPoint{});
TrackListIterator iter(mTracks);
for (Track *track = iter.First(); track; track = iter.Next())
{
if (mTrackExclusions &&
mTrackExclusions->end() !=
std::find(mTrackExclusions->begin(), mTrackExclusions->end(), track))
{
continue;
}
if (track->GetKind() == Track::Label)
{
LabelTrack *labelTrack = (LabelTrack *)track;
for (int i = 0, cnt = labelTrack->GetNumLabels(); i < cnt; ++i)
{
const LabelStruct *label = labelTrack->GetLabel(i);
const double t0 = label->getT0();
const double t1 = label->getT1();
CondListAdd(t0, labelTrack);
if (t1 != t0)
{
CondListAdd(t1, labelTrack);
}
}
}
else if (track->GetKind() == Track::Wave)
{
auto waveTrack = static_cast<const WaveTrack *>(track);
for (const auto &clip: waveTrack->GetClips())
{
if (mClipExclusions)
{
bool skip = false;
for (size_t j = 0, cnt = mClipExclusions->size(); j < cnt; ++j)
{
if ((*mClipExclusions)[j].track == waveTrack &&
(*mClipExclusions)[j].clip == clip.get())
{
skip = true;
break;
}
}
if (skip)
{
continue;
}
}
CondListAdd(clip->GetStartTime(), waveTrack);
CondListAdd(clip->GetEndTime(), waveTrack);
}
}
#ifdef USE_MIDI
else if (track->GetKind() == Track::Note)
{
CondListAdd(track->GetStartTime(), track);
CondListAdd(track->GetEndTime(), track);
}
#endif
}
// Sort all by time
std::sort(mSnapPoints.begin(), mSnapPoints.end());
}
bool GetTrackInfoCommand::Apply(CommandExecutionContext context)
{
wxString mode = GetString(wxT("Type"));
long trackIndex = GetLong(wxT("TrackIndex"));
// Get the track indicated by the TrackIndex parameter
// (Note: this ought to be somewhere else)
long i = 0;
TrackListIterator iter(context.proj->GetTracks());
Track *t = iter.First();
while (t && i != trackIndex)
{
t = iter.Next();
++i;
}
if (i != trackIndex || !t)
{
Error(wxT("TrackIndex was invalid."));
return false;
}
// Now get the particular desired item about the track of interest
if (mode.IsSameAs(wxT("Name")))
{
Status(t->GetName());
}
else if (mode.IsSameAs(wxT("StartTime")))
{
Status(wxString::Format(wxT("%f"), t->GetStartTime()));
}
else if (mode.IsSameAs(wxT("EndTime")))
{
Status(wxString::Format(wxT("%f"), t->GetEndTime()));
}
else if (mode.IsSameAs(wxT("Pan")))
{
if(t->GetKind() == Track::Wave)
Status(wxString::Format(wxT("%f"), static_cast<WaveTrack*>(t)->GetPan()));
}
else if (mode.IsSameAs(wxT("Gain")))
{
if(t->GetKind() == Track::Wave)
Status(wxString::Format(wxT("%f"), static_cast<WaveTrack*>(t)->GetGain()));
}
else if (mode.IsSameAs(wxT("Focused")))
{
TrackPanel *panel = context.proj->GetTrackPanel();
SendBooleanStatus(panel->GetFocusedTrack() == t);
}
else if (mode.IsSameAs(wxT("Selected")))
{
SendBooleanStatus(t->GetSelected());
}
else if (mode.IsSameAs(wxT("Linked")))
{
SendBooleanStatus(t->GetLinked());
}
else if (mode.IsSameAs(wxT("Solo")))
{
if (t->GetKind() == Track::Wave)
SendBooleanStatus(t->GetSolo());
else
SendBooleanStatus(false);
}
else if (mode.IsSameAs(wxT("Mute")))
{
if (t->GetKind() == Track::Wave)
SendBooleanStatus(t->GetMute());
else
SendBooleanStatus(false);
}
else
{
Error(wxT("Invalid info type!"));
return false;
}
return true;
}
//TODO-MB: wouldn't it make more sense to DELETE the time track after 'mix and render'?
void MixAndRender(TrackList *tracks, TrackFactory *trackFactory,
double rate, sampleFormat format,
double startTime, double endTime,
WaveTrack::Holder &uLeft, WaveTrack::Holder &uRight)
{
uLeft.reset(), uRight.reset();
// This function was formerly known as "Quick Mix".
Track *t;
bool mono = false; /* flag if output can be mono without loosing anything*/
bool oneinput = false; /* flag set to true if there is only one input track
(mono or stereo) */
TrackListIterator iter(tracks);
SelectedTrackListOfKindIterator usefulIter(Track::Wave, tracks);
// this only iterates tracks which are relevant to this function, i.e.
// selected WaveTracks. The tracklist is (confusingly) the list of all
// tracks in the project
int numWaves = 0; /* number of wave tracks in the selection */
int numMono = 0; /* number of mono, centre-panned wave tracks in selection*/
t = iter.First();
while (t) {
if (t->GetSelected() && t->GetKind() == Track::Wave) {
numWaves++;
float pan = ((WaveTrack*)t)->GetPan();
if (t->GetChannel() == Track::MonoChannel && pan == 0)
numMono++;
}
t = iter.Next();
}
if (numMono == numWaves)
mono = true;
/* the next loop will do two things at once:
* 1. build an array of all the wave tracks were are trying to process
* 2. determine when the set of WaveTracks starts and ends, in case we
* need to work out for ourselves when to start and stop rendering.
*/
double mixStartTime = 0.0; /* start time of first track to start */
bool gotstart = false; // flag indicates we have found a start time
double mixEndTime = 0.0; /* end time of last track to end */
double tstart, tend; // start and end times for one track.
WaveTrackConstArray waveArray;
t = iter.First();
while (t) {
if (t->GetSelected() && t->GetKind() == Track::Wave) {
waveArray.push_back(static_cast<WaveTrack *>(t));
tstart = t->GetStartTime();
tend = t->GetEndTime();
if (tend > mixEndTime)
mixEndTime = tend;
// try and get the start time. If the track is empty we will get 0,
// which is ambiguous because it could just mean the track starts at
// the beginning of the project, as well as empty track. The give-away
// is that an empty track also ends at zero.
if (tstart != tend) {
// we don't get empty tracks here
if (!gotstart) {
// no previous start, use this one unconditionally
mixStartTime = tstart;
gotstart = true;
} else if (tstart < mixStartTime)
mixStartTime = tstart; // have a start, only make it smaller
} // end if start and end are different
} // end if track is a selected WaveTrack.
/** @TODO: could we not use a SelectedTrackListOfKindIterator here? */
t = iter.Next();
}
/* create the destination track (NEW track) */
if ((numWaves == 1) || ((numWaves == 2) && (usefulIter.First()->GetLink() != NULL)))
oneinput = true;
// only one input track (either 1 mono or one linked stereo pair)
auto mixLeft = trackFactory->NewWaveTrack(format, rate);
if (oneinput)
mixLeft->SetName(usefulIter.First()->GetName()); /* set name of output track to be the same as the sole input track */
else
mixLeft->SetName(_("Mix"));
mixLeft->SetOffset(mixStartTime);
decltype(mixLeft) mixRight{};
if (mono) {
mixLeft->SetChannel(Track::MonoChannel);
}
else {
mixRight = trackFactory->NewWaveTrack(format, rate);
if (oneinput) {
if (usefulIter.First()->GetLink() != NULL) // we have linked track
mixLeft->SetName(usefulIter.First()->GetLink()->GetName()); /* set name to match input track's right channel!*/
else
mixLeft->SetName(usefulIter.First()->GetName()); /* set name to that of sole input channel */
}
else
mixRight->SetName(_("Mix"));
mixLeft->SetChannel(Track::LeftChannel);
mixRight->SetChannel(Track::RightChannel);
mixRight->SetOffset(mixStartTime);
mixLeft->SetLinked(true);
}
int maxBlockLen = mixLeft->GetIdealBlockSize();
// If the caller didn't specify a time range, use the whole range in which
// any input track had clips in it.
if (startTime == endTime) {
startTime = mixStartTime;
endTime = mixEndTime;
}
Mixer mixer(waveArray,
Mixer::WarpOptions(tracks->GetTimeTrack()),
startTime, endTime, mono ? 1 : 2, maxBlockLen, false,
rate, format);
::wxSafeYield();
int updateResult = eProgressSuccess;
{
ProgressDialog progress(_("Mix and Render"),
_("Mixing and rendering tracks"));
while (updateResult == eProgressSuccess) {
sampleCount blockLen = mixer.Process(maxBlockLen);
if (blockLen == 0)
break;
if (mono) {
samplePtr buffer = mixer.GetBuffer();
mixLeft->Append(buffer, format, blockLen);
}
else {
samplePtr buffer;
buffer = mixer.GetBuffer(0);
mixLeft->Append(buffer, format, blockLen);
buffer = mixer.GetBuffer(1);
mixRight->Append(buffer, format, blockLen);
}
updateResult = progress.Update(mixer.MixGetCurrentTime() - startTime, endTime - startTime);
}
}
mixLeft->Flush();
if (!mono)
mixRight->Flush();
if (updateResult == eProgressCancelled || updateResult == eProgressFailed)
{
return;
}
else {
uLeft = std::move(mixLeft),
uRight = std::move(mixRight);
#if 0
int elapsedMS = wxGetElapsedTime();
double elapsedTime = elapsedMS * 0.001;
double maxTracks = totalTime / (elapsedTime / numWaves);
// Note: these shouldn't be translated - they're for debugging
// and profiling only.
printf(" Tracks: %d\n", numWaves);
printf(" Mix length: %f sec\n", totalTime);
printf("Elapsed time: %f sec\n", elapsedTime);
printf("Max number of tracks to mix in real time: %f\n", maxTracks);
#endif
}
}
float ContrastDialog::GetDB()
{
// FIXME: what if more than one track?
float rms = float(0.0);
AudacityProject *p = GetActiveProject();
TrackListOfKindIterator iter(Track::Wave, p->GetTracks());
Track *t = iter.First();
if(mT0 > mT1)
{
wxMessageDialog m(NULL, _("Start time after end time!\nPlease enter reasonable times."), _("Error"), wxOK);
m.ShowModal();
return 1234.0; // 'magic number', but the whole +ve dB range will 'almost' never occur
}
if(mT0 < t->GetStartTime())
mT0 = t->GetStartTime();
if(mT1 > t->GetEndTime())
mT1 = t->GetEndTime();
if(mT0 > mT1)
{
wxMessageDialog m(NULL, _("Times are not reasonable!\nPlease enter reasonable times."), _("Error"), wxOK);
m.ShowModal();
return 1234.0;
}
if(mT0 == mT1)
{
wxMessageDialog m(NULL, _("Nothing to measure.\nPlease select a section of a track."), _("Error"), wxOK);
m.ShowModal();
return 1234.0;
}
bool mSelected = false;
while(t) {
if( ((WaveTrack *)t)->GetSelected() )
{
if( mSelected == true ) // already measured one track
{
wxMessageDialog m(NULL, _("You can only measure one track at a time."), _("Error"), wxOK);
m.ShowModal();
return 1234.0;
}
else
{
((WaveTrack *)t)->GetRMS(&rms, mT0, mT1);
mSelected = true;
}
}
t = iter.Next();
}
if( mSelected )
{
if( rms < 1.0E-30 )
return -60.0;
return 20.0*log10(rms);
}
else
{
wxMessageDialog m(NULL, _("Please select something to be measured."), _("Error"), wxOK);
m.ShowModal();
return 1234.0;
}
}
double StretchHandle::GetT0(const Track &track, const ViewInfo &viewInfo)
{
return std::max(track.GetStartTime(), viewInfo.selectedRegion.t0());
}
SnapManager::SnapManager(TrackList *tracks, TrackClipArray *exclusions,
double zoom, int pixelTolerance, bool noTimeSnap)
{
int i;
// Grab time-snapping prefs (unless otherwise requested)
mSnapToTime = false;
AudacityProject *p = GetActiveProject();
wxASSERT(p);
if (p)
{
// Look up the format string
if (p->GetSnapTo() && !noTimeSnap) {
mSnapToTime = true;
mConverter.SetSampleRate(p->GetRate());
mConverter.SetFormatName(p->GetSelectionFormat());
}
}
mSnapPoints = new SnapPointArray(CompareSnapPoints);
if (zoom > 0 && pixelTolerance > 0)
mTolerance = pixelTolerance / zoom;
else {
// This shouldn't happen, but we don't want to crash if we get
// illegal values. The net effect of this is to never snap.
mTolerance = 0.0;
}
// Two time points closer than this are considered the same
mEpsilon = 1 / 44100.0;
// Add a SnapPoint at t=0
mSnapPoints->Add(new SnapPoint(0.0, NULL));
TrackListIterator iter(tracks);
Track *track = iter.First();
while (track) {
if (track->GetKind() == Track::Label) {
LabelTrack *labelTrack = (LabelTrack *)track;
for(i = 0; i < labelTrack->GetNumLabels(); i++) {
const LabelStruct *label = labelTrack->GetLabel(i);
CondListAdd(label->t, labelTrack);
if (label->t1 != label->t) {
CondListAdd(label->t1, labelTrack);
}
}
}
else if (track->GetKind() == Track::Wave) {
WaveTrack *waveTrack = (WaveTrack *)track;
WaveClipList::compatibility_iterator it;
for (it=waveTrack->GetClipIterator(); it; it=it->GetNext()) {
WaveClip *clip = it->GetData();
if (exclusions) {
bool skip = false;
for(int j=0; j<(int)exclusions->GetCount(); j++) {
if ((*exclusions)[j].track == waveTrack &&
(*exclusions)[j].clip == clip)
skip = true;
}
if (skip)
continue;
}
CondListAdd(clip->GetStartTime(), waveTrack);
CondListAdd(clip->GetEndTime(), waveTrack);
}
}
#ifdef USE_MIDI
else if (track->GetKind() == Track::Note) {
CondListAdd(track->GetStartTime(), track);
CondListAdd(track->GetEndTime(), track);
}
#endif
track = iter.Next();
}
}