SyncUnmountableManager::SyncUnmountableManager (QObject *parent)
: SyncManagerBase (parent)
, CopyMgr_ (new CopyManager<CopyJob> (this))
{
connect (CopyMgr_,
SIGNAL (startedCopying (QString)),
this,
SLOT (handleStartedCopying (QString)));
connect (CopyMgr_,
SIGNAL (finishedCopying ()),
this,
SLOT (handleFinishedCopying ()));
connect (CopyMgr_,
SIGNAL (copyProgress (qint64, qint64)),
this,
SLOT (handleCopyProgress (qint64, qint64)));
connect (CopyMgr_,
SIGNAL (errorCopying (QString, QString)),
this,
SLOT (handleErrorCopying (QString, QString)));
}
void
Effect::process(const synthclone::Zone &/*zone*/,
synthclone::SampleInputStream &inputStream,
synthclone::SampleOutputStream &outputStream)
{
synthclone::SampleFrameCount frames = inputStream.getFrames();
float sampleRate = static_cast<float>(inputStream.getSampleRate());
synthclone::SampleFrameCount fadeInFrames = fadeInEnabled ?
static_cast<synthclone::SampleFrameCount>(fadeInTime * sampleRate) : 0;
synthclone::SampleFrameCount fadeOutFrames = fadeOutEnabled ?
static_cast<synthclone::SampleFrameCount>(fadeOutTime * sampleRate) : 0;
synthclone::SampleFrameCount totalFadeFrames = fadeInFrames + fadeOutFrames;
qDebug() << "\tfade in frames:" << fadeInFrames;
qDebug() << "\t fade out frames:" << fadeOutFrames;
// If the amount of frames spent fading is greater than the number of total
// frames, then shorten the fades proportionally. If anyone has a better
// suggestion, I'm all ears.
if (totalFadeFrames > frames) {
qDebug() << "adjusting fade frames";
fadeInFrames = static_cast<synthclone::SampleFrameCount>
(static_cast<float>(fadeInFrames) *
(static_cast<float>(frames) /
static_cast<float>(totalFadeFrames)));
fadeOutFrames = frames - fadeInFrames;
qDebug() << "\tfade in frames:" << fadeInFrames;
qDebug() << "\t fade out frames:" << fadeOutFrames;
}
synthclone::SampleChannelCount channels = inputStream.getChannels();
QScopedArrayPointer<float> audioDataPtr(new float[channels]);
float *audioData = audioDataPtr.data();
synthclone::SampleFrameCount currentFrame = 0;
synthclone::SampleFrameCount framesRead;
float volume;
if (fadeInFrames) {
qDebug() << "\tapplying fade in ...";
emit statusChanged(tr("Creating fade-in of sample ..."));
for (; currentFrame < fadeInFrames; currentFrame++) {
framesRead = inputStream.read(audioData, 1);
assert(framesRead == 1);
volume = getAmplitude(fadeInStartVolume *
(1.0 - (static_cast<float>(currentFrame + 1) /
static_cast<float>(fadeInFrames))));
for (int i = 0; i < channels; i++) {
audioData[i] *= volume;
}
outputStream.write(audioData, 1);
emit progressChanged(static_cast<float>(currentFrame + 1) /
static_cast<float>(frames));
}
}
synthclone::SampleFrameCount fadeOutStartFrame = frames - fadeOutFrames;
synthclone::SampleFrameCount copyFrames = fadeOutStartFrame - currentFrame;
qDebug() << "\tcopy frames:" << copyFrames;
qDebug() << "\tfade out start frame:" << fadeOutStartFrame;
if (copyFrames) {
qDebug() << "copying frames ...";
emit statusChanged(tr("Writing sample ..."));
copyStartFrame = currentFrame;
copyTotalFrames = frames;
synthclone::SampleCopier copier;
connect(&copier,
SIGNAL(copyProgress(synthclone::SampleFrameCount,
synthclone::SampleFrameCount)),
SLOT(handleCopyProgress(synthclone::SampleFrameCount,
synthclone::SampleFrameCount)),
Qt::DirectConnection);
copier.copy(inputStream, outputStream, copyFrames);
}
currentFrame += copyFrames;
if (fadeOutFrames) {
qDebug() << "\tapplying fade out ...";
emit statusChanged(tr("Creating fade-out of sample ..."));
for (; currentFrame < frames; currentFrame++) {
framesRead = inputStream.read(audioData, 1);
assert(framesRead == 1);
volume = getAmplitude(fadeOutEndVolume *
(static_cast<float>(currentFrame + 1 -
fadeOutStartFrame) /
static_cast<float>(fadeOutFrames)));
for (int i = 0; i < channels; i++) {
audioData[i] *= volume;
}
outputStream.write(audioData, 1);
emit progressChanged(static_cast<float>(currentFrame + 1) /
static_cast<float>(frames));
}
}
emit progressChanged(0.0);
emit statusChanged("");
qDebug() << "/Effect::process";
}