bool QuickMix(TrackList *tracks, DirManager *dirManager,
double rate, sampleFormat format)
{
WaveTrack **waveArray;
VTrack *t;
int numWaves = 0;
int numLeft = 0;
int numRight = 0;
int numMono = 0;
bool mono = false;
int w;
TrackListIterator iter(tracks);
t = iter.First();
while (t) {
if (t->GetSelected() && t->GetKind() == VTrack::Wave) {
numWaves++;
switch (t->GetChannel()) {
case VTrack::MonoChannel:
numLeft++;
numRight++;
numMono++;
break;
case VTrack::LeftChannel:
numLeft++;
break;
case VTrack::RightChannel:
numRight++;
break;
}
}
t = iter.Next();
}
if (numMono == numWaves || numLeft == numWaves || numRight == numWaves)
mono = true;
double totalTime = 0.0;
waveArray = new WaveTrack *[numWaves];
w = 0;
t = iter.First();
while (t) {
if (t->GetSelected() && t->GetKind() == VTrack::Wave) {
waveArray[w++] = (WaveTrack *) t;
if (t->GetMaxLen() > totalTime)
totalTime = t->GetMaxLen();
}
t = iter.Next();
}
WaveTrack *mixLeft = new WaveTrack(dirManager);
mixLeft->SetSampleFormat(format);
mixLeft->SetRate(rate);
mixLeft->SetChannel(VTrack::MonoChannel);
mixLeft->SetName(_("Mix"));
WaveTrack *mixRight = 0;
if (!mono) {
mixRight = new WaveTrack(dirManager);
mixRight->SetSampleFormat(format);
mixRight->SetRate(rate);
mixRight->SetName(_("Mix"));
mixLeft->SetChannel(VTrack::LeftChannel);
mixRight->SetChannel(VTrack::RightChannel);
mixLeft->SetLinked(true);
}
int maxBlockLen = mixLeft->GetIdealBlockSize();
double maxBlockTime = maxBlockLen / mixLeft->GetRate();
Mixer *mixer = new Mixer(mono ? 1 : 2, maxBlockLen, false,
rate, format);
wxProgressDialog *progress = NULL;
wxYield();
wxStartTimer();
wxBusyCursor busy;
double tt = 0.0;
while (tt < totalTime) {
double blockTime = maxBlockTime;
if (tt + blockTime > totalTime)
blockTime = totalTime - tt;
int blockLen = int (blockTime * mixLeft->GetRate());
mixer->Clear();
for (int i = 0; i < numWaves; i++) {
if (mono)
mixer->MixMono(waveArray[i], tt, tt + blockTime);
else {
switch (waveArray[i]->GetChannel()) {
case VTrack::LeftChannel:
mixer->MixLeft(waveArray[i], tt, tt + blockTime);
break;
case VTrack::RightChannel:
mixer->MixRight(waveArray[i], tt, tt + blockTime);
break;
case VTrack::MonoChannel:
mixer->MixMono(waveArray[i], tt, tt + blockTime);
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);
}
tt += blockTime;
if (!progress && wxGetElapsedTime(false) > 500) {
progress =
new wxProgressDialog(_("Quick Mix"), _("Mixing tracks"), 1000);
}
if (progress) {
int progressvalue = int (1000 * (tt / totalTime));
progress->Update(progressvalue);
}
}
tracks->Add(mixLeft);
if (!mono)
tracks->Add(mixRight);
delete progress;
int elapsedMS = wxGetElapsedTime();
double elapsedTime = elapsedMS * 0.001;
double maxTracks = totalTime / (elapsedTime / numWaves);
#ifdef __WXGTK__
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
delete waveArray;
delete mixer;
return true;
}
void ControlToolBar::OnRecord(wxCommandEvent &evt)
{
if (gAudioIO->IsBusy()) {
mRecord->PopUp();
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 *t = p->GetTracks();
TrackListIterator it(t);
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 = t->GetWaveTrackArray(false);
#ifdef EXPERIMENTAL_MIDI_OUT
midiTracks = t->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;
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)
playbackTracks.Remove(wt);
t1 = wt->GetEndTime();
if (t1 < t0) {
WaveTrack *newTrack = p->GetTrackFactory()->NewWaveTrack();
newTrack->InsertSilence(0.0, t0 - t1);
newTrack->Flush();
wt->Clear(t1, t0);
bool bResult = wt->Paste(t1, newTrack);
wxASSERT(bResult); // TO DO: Actually handle this.
delete newTrack;
}
newRecordingTracks.Add(wt);
}
}
t1 = 1000000000.0; // record for a long, long time (tens of years)
}
else {
recordingChannels = gPrefs->Read(wxT("/AudioIO/RecordChannels"), 2);
for (int c = 0; c < recordingChannels; c++) {
WaveTrack *newTrack = p->GetTrackFactory()->NewWaveTrack();
newTrack->SetOffset(t0);
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 );
}
newRecordingTracks.Add(newTrack);
}
// msmeyer: StartStream calls a callback which triggers auto-save, so
// we add the tracks where recording is done into now. We remove them
// later if starting the stream fails
for (unsigned int i = 0; i < newRecordingTracks.GetCount(); i++)
t->Add(newRecordingTracks[i]);
}
//Automated Input Level Adjustment Initialization
#ifdef AUTOMATED_INPUT_LEVEL_ADJUSTMENT
gAudioIO->AILAInitialize();
#endif
int token = gAudioIO->StartStream(playbackTracks,
newRecordingTracks,
#ifdef EXPERIMENTAL_MIDI_OUT
midiTracks,
#endif
t->GetTimeTrack(),
p->GetRate(), t0, t1, p);
bool success = (token != 0);
if (success) {
p->SetAudioIOToken(token);
mBusyProject = p;
}
else {
// msmeyer: Delete recently added tracks if opening stream fails
if (!shifted) {
for (unsigned int i = 0; i < newRecordingTracks.GetCount(); i++) {
t->Remove(newRecordingTracks[i]);
delete 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);
}
}
}
bool MixAndRender(TrackList *tracks, TrackFactory *trackFactory,
double rate, sampleFormat format,
double startTime, double endTime,
WaveTrack **newLeft, WaveTrack **newRight)
{
// This function was formerly known as "Quick Mix". It takes one or
// more tracks as input; of all tracks that are selected, it mixes
// them together, applying any envelopes, amplitude gain, panning,
// and real-time effects in the process. The resulting pair of
// tracks (stereo) are "rendered" and have no effects, gain, panning,
// or envelopes.
WaveTrack **waveArray;
Track *t;
int numWaves = 0;
int numMono = 0;
bool mono = false;
int w;
TrackListIterator iter(tracks);
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;
double totalTime = 0.0;
waveArray = new WaveTrack *[numWaves];
w = 0;
t = iter.First();
while (t) {
if (t->GetSelected() && t->GetKind() == Track::Wave) {
waveArray[w++] = (WaveTrack *) t;
if (t->GetEndTime() > totalTime)
totalTime = t->GetEndTime();
}
t = iter.Next();
}
WaveTrack *mixLeft = trackFactory->NewWaveTrack(format, rate);
mixLeft->SetName(_("Mix"));
WaveTrack *mixRight = 0;
if (mono) {
mixLeft->SetChannel(Track::MonoChannel);
}
else {
mixRight = trackFactory->NewWaveTrack(format, rate);
mixRight->SetName(_("Mix"));
mixLeft->SetChannel(Track::LeftChannel);
mixRight->SetChannel(Track::RightChannel);
mixLeft->SetLinked(true);
mixRight->SetTeamed(true);
}
int maxBlockLen = mixLeft->GetIdealBlockSize();
if (startTime == endTime) {
startTime = 0.0;
endTime = totalTime;
}
Mixer *mixer = new Mixer(numWaves, waveArray, tracks->GetTimeTrack(),
startTime, endTime, mono ? 1 : 2, maxBlockLen, false,
rate, format);
wxYield();
GetActiveProject()->ProgressShow(_NoAcc("&Mix and Render"),
_("Mixing and rendering tracks"));
wxBusyCursor busy;
bool cancelling = false;
while(!cancelling) {
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);
}
int progressvalue = int (1000 * (mixer->MixGetCurrentTime() / totalTime));
cancelling = !GetActiveProject()->ProgressUpdate(progressvalue);
}
GetActiveProject()->ProgressHide();
mixLeft->Flush();
*newLeft = mixLeft;
if (!mono) {
mixRight->Flush();
*newRight = 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
delete[] waveArray;
delete mixer;
return true;
}
//TODO-MB: wouldn't it make more sense to delete the time track after 'mix and render'?
bool MixAndRender(TrackList *tracks, TrackFactory *trackFactory,
double rate, sampleFormat format,
double startTime, double endTime,
WaveTrack **newLeft, WaveTrack **newRight)
{
// This function was formerly known as "Quick Mix".
WaveTrack **waveArray;
Track *t;
int numWaves = 0; /* number of wave tracks in the selection */
int numMono = 0; /* number of mono, centre-panned wave tracks in selection*/
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) */
int w;
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
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.
waveArray = new WaveTrack *[numWaves];
w = 0;
t = iter.First();
while (t) {
if (t->GetSelected() && t->GetKind() == Track::Wave) {
waveArray[w++] = (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)
WaveTrack *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);
WaveTrack *mixRight = 0;
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 = new Mixer(numWaves, waveArray,
Mixer::WarpOptions(tracks->GetTimeTrack()),
startTime, endTime, mono ? 1 : 2, maxBlockLen, false,
rate, format);
::wxSafeYield();
ProgressDialog *progress = new ProgressDialog(_("Mix and Render"),
_("Mixing and rendering tracks"));
int updateResult = eProgressSuccess;
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);
}
delete progress;
mixLeft->Flush();
if (!mono)
mixRight->Flush();
if (updateResult == eProgressCancelled || updateResult == eProgressFailed)
{
delete mixLeft;
if (!mono)
delete mixRight;
} else {
*newLeft = mixLeft;
if (!mono)
*newRight = 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
}
delete[] waveArray;
delete mixer;
return (updateResult == eProgressSuccess || updateResult == eProgressStopped);
}
void ControlToolBar::OnRecord(wxCommandEvent &evt)
{
if (gAudioIO->IsBusy()) {
#if (AUDACITY_BRANDING == BRAND_AUDIOTOUCH)
if (mIsLocked) // Stop only if in locked mode.
{
this->StopPlaying(); // Stop recording.
mRecord->PopUp();
}
else
{
//v evt.GetClassInfo();
}
#else
mRecord->PopUp();
#endif
return;
}
mPlay->Disable();
#if (AUDACITY_BRANDING == BRAND_THINKLABS)
mLoopPlay->Disable();
#endif
#if (AUDACITY_BRANDING == BRAND_AUDIOTOUCH)
mStop->SetEnabled(mIsLocked);
#else
mStop->Enable();
#endif
mRewind->Disable();
mFF->Disable();
#if (AUDACITY_BRANDING == BRAND_AUDIOTOUCH)
mPause->SetEnabled(mIsLocked);
this->EnablePauseCommand(mIsLocked);
this->SetRecord(mIsLocked); // If locked, push Record down, else up.
#else
mPause->Enable();
mRecord->PushDown();
#endif
AudacityProject *p = GetActiveProject();
if (p) {
TrackList *t = p->GetTracks();
// Don't do this for Audiotouch. Not necessary. The performance hit is in the track being recorded, below.
#if (AUDACITY_BRANDING == BRAND_THINKLABS)
// For versions that default to dual wave/spectrum display,
// switch all tracks to WaveformDisplay on Record, for performance.
TrackListIterator iter(t);
for (Track* pTrack = iter.First(); pTrack; pTrack = iter.Next())
if (pTrack->GetKind() == Track::Wave)
((WaveTrack*)pTrack)->SetDisplay(WaveTrack::WaveformDisplay);
#endif
double t0 = p->GetSel0();
double t1 = p->GetSel1();
if (t1 == t0)
t1 = 1000000000.0; // record for a long, long time (tens of years)
#if (AUDACITY_BRANDING == BRAND_AUDIOTOUCH)
if (p->m_bWantAppendRecording)
{
t0 = t->GetEndTime();
t1 = 1000000000.0; // record for a long, long time (tens of years)
}
gAudioIO->SetWantLatencyCorrection(!p->m_bWantAppendRecording);
#endif
/* 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;
bool duplex;
gPrefs->Read("/AudioIO/Duplex", &duplex, true);
int recordingChannels = gPrefs->Read("/AudioIO/RecordChannels", 1);
if( duplex )
playbackTracks = t->GetWaveTrackArray(false);
else
playbackTracks = WaveTrackArray();
for( int c = 0; c < recordingChannels; c++ )
{
WaveTrack *newTrack = p->GetTrackFactory()->NewWaveTrack();
newTrack->SetOffset(t0);
newTrack->SetRate(p->GetRate());
//v for performance newTrack->SetDisplay(WaveTrack::WaveformAndSpectrumDisplay);
newTrack->SetDisplay(WaveTrack::WaveformDisplay);
if( recordingChannels == 2 )
{
if( c == 0 )
{
newTrack->SetChannel(Track::LeftChannel);
newTrack->SetLinked(true);
}
else
newTrack->SetChannel(Track::RightChannel);
}
else
{
newTrack->SetChannel( Track::MonoChannel );
}
newRecordingTracks.Add(newTrack);
}
int token = gAudioIO->StartStream(playbackTracks,
newRecordingTracks, t->GetTimeTrack(),
p->GetRate(), t0, t1);
bool success = (token != 0);
for( unsigned int i = 0; i < newRecordingTracks.GetCount(); i++ )
if (success)
t->Add(newRecordingTracks[i]);
else
delete newRecordingTracks[i];
if (success) {
p->SetAudioIOToken(token);
mBusyProject = p;
SetVUMeters(p);
#if (AUDACITY_BRANDING == BRAND_AUDIOTOUCH)
this->SetBackgroundColour(*wxRED); // red for Recording
this->Refresh();
#endif
}
else {
// msmeyer: Show error message if stream could not be opened
wxMessageBox(_("Error while opening sound device. Please check the input "
"device settings and the project sample rate."),
_("Error"), wxOK | wxICON_EXCLAMATION, this);
SetPlay(false);
#if (AUDACITY_BRANDING == BRAND_AUDIOTOUCH)
mStop->Enable(); // In case it was disabled above, based on mIsLocked.
#endif
SetStop(false);
SetRecord(false);
}
#if (AUDACITY_BRANDING == BRAND_AUDIOTOUCH)
p->OnZoomFitV();
#endif
}
}
void ControlToolBar::OnRecord(wxCommandEvent &evt)
{
if (gAudioIO->IsBusy()) {
mRecord->PopUp();
return;
}
AudacityProject *p = GetActiveProject();
if (p && p->GetCleanSpeechMode()) {
size_t numProjects = gAudacityProjects.Count();
bool tracks = (p && !p->GetTracks()->IsEmpty());
if (tracks || (numProjects > 1)) {
wxMessageBox(_("Recording in CleanSpeech mode is not possible when a track, or more than one project, is already open."),
_("Recording not permitted"),
wxOK | wxICON_INFORMATION,
this);
mRecord->PopUp();
mRecord->Disable();
return;
}
}
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);
if (p) {
TrackList *t = p->GetTracks();
TrackListIterator it(t);
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;
/* REQUIRES PORTMIDI */
// NoteTrackArray midiTracks;
bool duplex;
gPrefs->Read(wxT("/AudioIO/Duplex"), &duplex, true);
if(duplex){
playbackTracks = t->GetWaveTrackArray(false);
/* REQUIRES PORTMIDI */
// midiTracks = t->GetNoteTrackArray(false);
}
else {
playbackTracks = WaveTrackArray();
/* REQUIRES PORTMIDI */
// midiTracks = NoteTrackArray();
}
// If SHIFT key was down, the user wants append to tracks
int recordingChannels = 0;
bool shifted = mRecord->WasShiftDown();
if (shifted) {
TrackListIterator it(t);
WaveTrack *wt;
bool sel = false;
double allt0 = t0;
// Find the maximum end time of selected and all wave tracks
for (Track *tt = it.First(); tt; tt = it.Next()) {
if (tt->GetKind() == Track::Wave) {
wt = (WaveTrack *)tt;
if (wt->GetEndTime() > allt0) {
allt0 = wt->GetEndTime();
}
if (tt->GetSelected()) {
sel = true;
if (duplex)
playbackTracks.Remove(wt);
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
for (Track *tt = it.First(); tt; tt = it.Next()) {
if (tt->GetKind() == Track::Wave && (tt->GetSelected() || !sel)) {
wt = (WaveTrack *)tt;
t1 = wt->GetEndTime();
if (t1 < t0) {
WaveTrack *newTrack = p->GetTrackFactory()->NewWaveTrack();
newTrack->InsertSilence(0.0, t0 - t1);
newTrack->Flush();
wt->Clear(t1, t0);
wt->Paste(t1, newTrack);
delete newTrack;
}
newRecordingTracks.Add(wt);
}
}
t1 = 1000000000.0; // record for a long, long time (tens of years)
}
else {
recordingChannels = gPrefs->Read(wxT("/AudioIO/RecordChannels"), 2);
for (int c = 0; c < recordingChannels; c++) {
WaveTrack *newTrack = p->GetTrackFactory()->NewWaveTrack();
int initialheight = newTrack->GetHeight();
newTrack->SetOffset(t0);
if (recordingChannels <= 2) {
newTrack->SetHeight(initialheight/recordingChannels);
}
else {
newTrack->SetMinimized(true);
}
if (recordingChannels == 2) {
if (c == 0) {
newTrack->SetChannel(Track::LeftChannel);
newTrack->SetLinked(true);
}
else {
newTrack->SetChannel(Track::RightChannel);
newTrack->SetTeamed(true);
}
}
else {
newTrack->SetChannel( Track::MonoChannel );
}
newRecordingTracks.Add(newTrack);
}
// msmeyer: StartStream calls a callback which triggers auto-save, so
// we add the tracks where recording is done into now. We remove them
// later if starting the stream fails
for (unsigned int i = 0; i < newRecordingTracks.GetCount(); i++)
t->Add(newRecordingTracks[i]);
}
int token = gAudioIO->StartStream(playbackTracks,
newRecordingTracks,
/* REQUIRES PORTMIDI */
// midiTracks,
t->GetTimeTrack(),
p->GetRate(), t0, t1, p);
bool success = (token != 0);
if (success) {
p->SetAudioIOToken(token);
mBusyProject = p;
SetVUMeters(p);
}
else {
// msmeyer: Delete recently added tracks if opening stream fails
if (!shifted) {
for (unsigned int i = 0; i < newRecordingTracks.GetCount(); i++) {
t->Remove(newRecordingTracks[i]);
delete newRecordingTracks[i];
}
}
// msmeyer: Show error message if stream could not be opened
wxMessageBox(_("Error while opening sound device. "
wxT("Please check the input device settings and the project sample rate.")),
_("Error"), wxOK | wxICON_EXCLAMATION, this);
SetPlay(false);
SetStop(false);
SetRecord(false);
}
}
}