bool Track::LinkConsistencyCheck()
{
// Sanity checks for linked tracks; unsetting the linked property
// doesn't fix the problem, but it likely leaves us with orphaned
// blockfiles instead of much worse problems.
bool err = false;
if (GetLinked())
{
Track *l = GetLink();
if (l)
{
// A linked track's partner should never itself be linked
if (l->GetLinked())
{
wxLogWarning(
wxT("Left track %s had linked right track %s with extra right track link.\n Removing extra link from right track."),
GetName(), l->GetName());
err = true;
l->SetLinked(false);
}
// Channels should be left and right
if ( !( (GetChannel() == Track::LeftChannel &&
l->GetChannel() == Track::RightChannel) ||
(GetChannel() == Track::RightChannel &&
l->GetChannel() == Track::LeftChannel) ) )
{
wxLogWarning(
wxT("Track %s and %s had left/right track links out of order. Setting tracks to not be linked."),
GetName(), l->GetName());
err = true;
SetLinked(false);
}
}
else
{
wxLogWarning(
wxT("Track %s had link to NULL track. Setting it to not be linked."),
GetName());
err = true;
SetLinked(false);
}
}
return ! err;
}
void TrackList::GroupChannels(
Track &track, size_t groupSize, bool resetChannels )
{
// If group size is more than two, for now only the first two channels
// are grouped as stereo, and any others remain mono
auto list = track.mList.lock();
if ( groupSize > 0 && list.get() == this ) {
auto iter = track.mNode.first;
auto after = iter;
auto end = this->ListOfTracks::end();
auto count = groupSize;
for ( ; after != end && count; ++after, --count )
;
if ( count == 0 ) {
auto unlink = [&] ( Track &tr ) {
if ( tr.GetLinked() ) {
if ( resetChannels ) {
auto link = tr.GetLink();
if ( link )
link->SetChannel( Track::MonoChannel );
}
tr.SetLinked( false );
}
if ( resetChannels )
tr.SetChannel( Track::MonoChannel );
};
// Disassociate previous tracks -- at most one
auto pLeader = this->FindLeader( &track );
if ( *pLeader && *pLeader != &track )
unlink( **pLeader );
// First disassociate given and later tracks, then reassociate them
for ( auto iter2 = iter; iter2 != after; ++iter2 )
unlink( **iter2 );
if ( groupSize > 1 ) {
const auto channel = *iter++;
channel->SetLinked( true );
channel->SetChannel( Track::LeftChannel );
(*iter++)->SetChannel( Track::RightChannel );
while (iter != after)
(*iter++)->SetChannel( Track::MonoChannel );
}
return;
}
}
// *this does not contain the track or sufficient following channels
// or group size is zero
THROW_INCONSISTENCY_EXCEPTION;
}
void Track::SetLinked(bool l)
{
auto pList = mList.lock();
if (pList && !pList->mPendingUpdates.empty()) {
auto orig = pList->FindById( GetId() );
if (orig && orig != this) {
// delegate, and rely on RecalcPositions to copy back
orig->SetLinked(l);
return;
}
}
DoSetLinked(l);
if (pList) {
pList->RecalcPositions(mNode);
pList->ResizingEvent(mNode);
}
}
void ControlToolBar::OnRecord(wxCommandEvent &evt)
{
auto doubleClicked = mRecord->IsDoubleClicked();
mRecord->ClearDoubleClicked();
if (doubleClicked) {
// Display a fixed recording head while scrolling the waves continuously.
// If you overdub, you may want to anticipate some context in existing tracks,
// so center the head. If not, put it rightmost to display as much wave as we can.
const auto project = GetActiveProject();
bool duplex;
gPrefs->Read(wxT("/AudioIO/Duplex"), &duplex, true);
if (duplex) {
// See if there is really anything being overdubbed
if (gAudioIO->GetNumPlaybackChannels() == 0)
// No.
duplex = false;
}
using Mode = AudacityProject::PlaybackScroller::Mode;
project->GetPlaybackScroller().Activate(duplex ? Mode::Centered : Mode::Right);
return;
}
if (gAudioIO->IsBusy()) {
if (!CanStopAudioStream() || 0 == gAudioIO->GetNumCaptureChannels())
mRecord->PopUp();
else
mRecord->PushDown();
return;
}
AudacityProject *p = GetActiveProject();
if( evt.GetInt() == 1 ) // used when called by keyboard shortcut. Default (0) ignored.
mRecord->SetShift(true);
if( evt.GetInt() == 2 )
mRecord->SetShift(false);
SetRecord(true, mRecord->WasShiftDown());
if (p) {
TrackList *trackList = p->GetTracks();
TrackListIterator it(trackList);
if(it.First() == NULL)
mRecord->SetShift(false);
double t0 = p->GetSel0();
double t1 = p->GetSel1();
if (t1 == t0)
t1 = 1000000000.0; // record for a long, long time (tens of years)
/* TODO: set up stereo tracks if that is how the user has set up
* their preferences, and choose sample format based on prefs */
WaveTrackArray newRecordingTracks, playbackTracks;
#ifdef EXPERIMENTAL_MIDI_OUT
NoteTrackArray midiTracks;
#endif
bool duplex;
gPrefs->Read(wxT("/AudioIO/Duplex"), &duplex, true);
if(duplex){
playbackTracks = trackList->GetWaveTrackArray(false);
#ifdef EXPERIMENTAL_MIDI_OUT
midiTracks = trackList->GetNoteTrackArray(false);
#endif
}
else {
playbackTracks = WaveTrackArray();
#ifdef EXPERIMENTAL_MIDI_OUT
midiTracks = NoteTrackArray();
#endif
}
// If SHIFT key was down, the user wants append to tracks
int recordingChannels = 0;
TrackList tracksCopy{};
bool tracksCopied = false;
bool shifted = mRecord->WasShiftDown();
if (shifted) {
bool sel = false;
double allt0 = t0;
// Find the maximum end time of selected and all wave tracks
// Find whether any tracks were selected. (If any are selected,
// record only into them; else if tracks exist, record into all.)
for (Track *tt = it.First(); tt; tt = it.Next()) {
if (tt->GetKind() == Track::Wave) {
WaveTrack *wt = static_cast<WaveTrack *>(tt);
if (wt->GetEndTime() > allt0) {
allt0 = wt->GetEndTime();
}
if (tt->GetSelected()) {
sel = true;
if (wt->GetEndTime() > t0) {
t0 = wt->GetEndTime();
}
}
}
}
// Use end time of all wave tracks if none selected
if (!sel) {
t0 = allt0;
}
// Pad selected/all wave tracks to make them all the same length
// Remove recording tracks from the list of tracks for duplex ("overdub")
// playback.
for (Track *tt = it.First(); tt; tt = it.Next()) {
if (tt->GetKind() == Track::Wave && (tt->GetSelected() || !sel)) {
WaveTrack *wt = static_cast<WaveTrack *>(tt);
if (duplex) {
auto end = playbackTracks.end();
auto it = std::find(playbackTracks.begin(), end, wt);
if (it != end)
playbackTracks.erase(it);
}
t1 = wt->GetEndTime();
if (t1 < t0) {
if (!tracksCopied) {
tracksCopied = true;
tracksCopy = *trackList;
}
auto newTrack = p->GetTrackFactory()->NewWaveTrack();
newTrack->InsertSilence(0.0, t0 - t1);
newTrack->Flush();
wt->Clear(t1, t0);
bool bResult = wt->Paste(t1, newTrack.get());
wxASSERT(bResult); // TO DO: Actually handle this.
wxUnusedVar(bResult);
}
newRecordingTracks.push_back(wt);
}
}
t1 = 1000000000.0; // record for a long, long time (tens of years)
}
else {
bool recordingNameCustom, useTrackNumber, useDateStamp, useTimeStamp;
wxString defaultTrackName, defaultRecordingTrackName;
int numTracks = 0;
for (Track *tt = it.First(); tt; tt = it.Next()) {
if (tt->GetKind() == Track::Wave && !tt->GetLinked())
numTracks++;
}
numTracks++;
recordingChannels = gPrefs->Read(wxT("/AudioIO/RecordChannels"), 2);
gPrefs->Read(wxT("/GUI/TrackNames/RecordingNameCustom"), &recordingNameCustom, false);
gPrefs->Read(wxT("/GUI/TrackNames/TrackNumber"), &useTrackNumber, false);
gPrefs->Read(wxT("/GUI/TrackNames/DateStamp"), &useDateStamp, false);
gPrefs->Read(wxT("/GUI/TrackNames/TimeStamp"), &useTimeStamp, false);
/* i18n-hint: The default name for an audio track. */
gPrefs->Read(wxT("/GUI/TrackNames/DefaultTrackName"),&defaultTrackName, _("Audio Track"));
gPrefs->Read(wxT("/GUI/TrackNames/RecodingTrackName"), &defaultRecordingTrackName, defaultTrackName);
wxString baseTrackName = recordingNameCustom? defaultRecordingTrackName : defaultTrackName;
for (int c = 0; c < recordingChannels; c++) {
auto newTrack = p->GetTrackFactory()->NewWaveTrack();
newTrack->SetOffset(t0);
wxString nameSuffix = wxString(wxT(""));
if (useTrackNumber) {
nameSuffix += wxString::Format(wxT("%d"), numTracks + c);
}
if (useDateStamp) {
if (!nameSuffix.IsEmpty()) {
nameSuffix += wxT("_");
}
nameSuffix += wxDateTime::Now().FormatISODate();
}
if (useTimeStamp) {
if (!nameSuffix.IsEmpty()) {
nameSuffix += wxT("_");
}
nameSuffix += wxDateTime::Now().FormatISOTime();
}
// ISO standard would be nice, but ":" is unsafe for file name.
nameSuffix.Replace(wxT(":"), wxT("-"));
if (baseTrackName.IsEmpty()) {
newTrack->SetName(nameSuffix);
}
else if (nameSuffix.IsEmpty()) {
newTrack->SetName(baseTrackName);
}
else {
newTrack->SetName(baseTrackName + wxT("_") + nameSuffix);
}
if (recordingChannels > 2)
newTrack->SetMinimized(true);
if (recordingChannels == 2) {
if (c == 0) {
newTrack->SetChannel(Track::LeftChannel);
newTrack->SetLinked(true);
}
else {
newTrack->SetChannel(Track::RightChannel);
}
}
else {
newTrack->SetChannel( Track::MonoChannel );
}
// Let the list hold the track, and keep a pointer to it
newRecordingTracks.push_back(
static_cast<WaveTrack*>(
trackList->Add(
std::move(newTrack))));
}
}
//Automated Input Level Adjustment Initialization
#ifdef EXPERIMENTAL_AUTOMATED_INPUT_LEVEL_ADJUSTMENT
gAudioIO->AILAInitialize();
#endif
AudioIOStartStreamOptions options(p->GetDefaultPlayOptions());
int token = gAudioIO->StartStream(playbackTracks,
newRecordingTracks,
#ifdef EXPERIMENTAL_MIDI_OUT
midiTracks,
#endif
t0, t1, options);
bool success = (token != 0);
if (success) {
p->SetAudioIOToken(token);
mBusyProject = p;
}
else {
if (shifted) {
// Restore the tracks to remove any inserted silence
if (tracksCopied)
*trackList = std::move(tracksCopy);
}
else {
// msmeyer: Delete recently added tracks if opening stream fails
for (unsigned int i = 0; i < newRecordingTracks.size(); i++) {
trackList->Remove(newRecordingTracks[i]);
}
}
// msmeyer: Show error message if stream could not be opened
wxMessageBox(_("Error while opening sound device. Please check the recording device settings and the project sample rate."),
_("Error"), wxOK | wxICON_EXCLAMATION, this);
SetPlay(false);
SetStop(false);
SetRecord(false);
}
}
UpdateStatusBar(GetActiveProject());
}
//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
}
}
