161 lines
5 KiB
C++
161 lines
5 KiB
C++
#include "../headers/scstwsoundplayer.h"
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ScStwSoundPlayer::ScStwSoundPlayer(QObject *parent) : QObject(parent)
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{
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this->waitLoop = new QEventLoop(this);
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this->waitTimer = new QTimer(this);
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this->soundFiles.insert(0, new QFile(":/sound/AtYourMarksSound.wav", this));
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this->soundFiles.insert(1, new QFile(":/sound/ReadySound.wav", this));
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this->soundFiles.insert(2, new QFile(":/sound/StartsignalSound.wav", this));
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this->falseStartSoundFile = new QFile(":/sound/FalseStartSound.wav", this);
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// init sound format
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QAudioFormat format;
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format.setSampleRate(44100);
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format.setChannelCount(2);
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format.setSampleSize(16);
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format.setCodec("audio/pcm");
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format.setByteOrder(QAudioFormat::LittleEndian);
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format.setSampleType(QAudioFormat::SignedInt);
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// check if format is valid
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QAudioDeviceInfo info(QAudioDeviceInfo::defaultOutputDevice());
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if (!info.isFormatSupported(format)) {
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qWarning() << "Raw audio format not supported by backend, cannot play audio.";
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return;
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}
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this->audioOutput = new QAudioOutput(format, this);
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this->audioOutput->setCategory("ScStw start sound");
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connect(this->audioOutput, SIGNAL(stateChanged(QAudio::State)), this, SLOT(handleStateChanged(QAudio::State)));
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connect(this, &ScStwSoundPlayer::playbackStarted, this->waitLoop, &QEventLoop::quit);
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}
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bool ScStwSoundPlayer::play(int action, double volume, double *timeOfStart) {
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if(!this->soundFiles.contains(action))
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return false;
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// stop playback
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this->audioOutput->stop();
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// update currently playing action
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this->currentlyPlayingAction = action;
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QFile *playbackFile = this->soundFiles[action];
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// close soundfile
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if(playbackFile->isOpen())
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playbackFile->close();
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// open soundfile
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if(!playbackFile->open(QFile::ReadOnly)) {
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qWarning() << "[ERROR][SOUNDS] Could not open sound file " << action << " !!";
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return false;
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}
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// update volume
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this->audioOutput->setVolume(volume);
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// start
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this->audioOutput->start(playbackFile);
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qDebug() << "playback stared, took " << this->audioOutput->elapsedUSecs();
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// pass the time of start if requested
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if(timeOfStart != nullptr) {
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*timeOfStart = QDateTime::currentMSecsSinceEpoch() - (this->audioOutput->elapsedUSecs() / 1000);
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}
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if(action < 2)
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return this->waitForSoundFinish();
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return true;
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}
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bool ScStwSoundPlayer::cancel(double volume) {
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if(!QList<QAudio::State>{QAudio::ActiveState}.contains(this->audioOutput->state()) )
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return false;
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// stop playback
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this->audioOutput->stop();
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this->waitLoop->quit();
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if(this->currentlyPlayingAction != 2)
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return true;
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// close soundfile
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if(this->falseStartSoundFile->isOpen())
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this->falseStartSoundFile->close();
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// open sound file
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if(!this->falseStartSoundFile->open(QFile::ReadOnly)) {
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qWarning() << "[ERROR][SOUNDS] Could not open false start sound file!!";
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return false;
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}
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// update volume
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this->audioOutput->setVolume(volume);
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// start
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this->audioOutput->start(this->falseStartSoundFile);
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return true;
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}
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bool ScStwSoundPlayer::waitForSoundFinish(double *timeOfStop) {
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if(this->audioOutput->state() != QAudio::ActiveState)
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return false;
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// wait until the audio output reports the sound is over
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waitLoop->exec();
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qDebug() << "waitLoop exited!! elapsed: " << this->audioOutput->elapsedUSecs() << " processed: " << this->audioOutput->processedUSecs();
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// wait until the sound is actually over
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// the timeOffset is the buffer time before the audio started!
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int timeOffset = ((this->audioOutput->processedUSecs() - this->audioOutput->elapsedUSecs()) / 1000);
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if(timeOffset > 0) {
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QTimer timer;
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timer.singleShot(timeOffset, this->waitLoop, &QEventLoop::quit);
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this->waitLoop->exec();
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}
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// calculate the point in time where the sound playback actually ended
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if(timeOfStop != nullptr) {
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int latency = (this->audioOutput->processedUSecs() - this->audioOutput->elapsedUSecs()) / 1000;
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*timeOfStop = QDateTime::currentMSecsSinceEpoch() - latency;
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}
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qDebug() << "finished now";
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return true;
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}
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void ScStwSoundPlayer::handleStateChanged(QAudio::State newState)
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{
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switch (newState) {
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case QAudio::IdleState:
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// Finished playing (no more data)
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qDebug() << "sound reported over!! elapsed: " << this->audioOutput->elapsedUSecs() << " processed: " << this->audioOutput->processedUSecs();
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waitLoop->exit();
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break;
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case QAudio::StoppedState:
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// Stopped for other reasons
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if (this->audioOutput->error() != QAudio::NoError) {
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// Error handling
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}
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break;
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case QAudio::ActiveState:
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emit this->playbackStarted();
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break;
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default:
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// ... other cases as appropriate
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break;
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}
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}
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