105 lines
2.6 KiB
C++
105 lines
2.6 KiB
C++
#ifndef SCSTWSTARTSOUNDPLAYER_H
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#define SCSTWSTARTSOUNDPLAYER_H
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#include <QObject>
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#include <QFile>
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#include <QAudioOutput>
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#include <QDebug>
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#include <QEventLoop>
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#include <QTimer>
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#include <QDateTime>
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/*!
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* \brief The ScStwSoundPlayer class is used for ultra low latency sound playback of the speed clibing start tones and commands
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*/
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class ScStwSoundPlayer : public QObject
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{
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Q_OBJECT
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public:
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/*!
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* \brief ScStwSoundPlayer constructor
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* \param parent
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*/
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explicit ScStwSoundPlayer(QObject *parent = nullptr);
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private:
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/*!
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* \brief A map containing all sound files
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* 0: AtYourMarksSound
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* 1: ReadySound
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* 2: StartSound
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*/
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QMap<int, QFile*> soundFiles;
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/*!
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* \brief Containng the false start sound file
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*/
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QFile *falseStartSoundFile;
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/*!
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* \brief The audio output object
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*/
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QAudioOutput *audioOutput;
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/*!
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* \brief The QEventLoop used to wait for the sound to finish
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*/
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QEventLoop *waitLoop;
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/*!
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* \brief The QTimer to wait for the sound to finish
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*/
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QTimer *waitTimer;
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/*!
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* \brief The action that is currently played
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*/
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int currentlyPlayingAction;
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public slots:
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/*!
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* \brief Function to begin playing the sound of a certain state
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* \param action The action to play (0: AtYourMarks, 1:Ready, 2:Start)
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* \param volume The volume to play at
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* \param timeOfStop The time the playback actually started (msecs since epoch)
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* \return true if the playback was successfully started, false otherwise
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*/
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bool play(int action, double volume, double *timeOfStart = nullptr);
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/*!
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* \brief Function to wait for the playback to finish
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* \param timeOfStop the point in time when the plyback actually stopped (msecs since epoch)
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* \return false if there was any error (eg. there was no playback currently), true otherwise
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*/
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bool waitForSoundFinish(double *timeOfStop = nullptr);
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/*!
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* \brief Function to cancel the current playback
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*
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* Note that this function will automatically play the false start tone if the currently playing action is 2
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*
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* \param volume the volume to play the false start sound at
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* \return true if the playback was successfully stopped, false otherwise
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*/
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bool cancel(double volume = 0);
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private slots:
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/*!
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* \brief Handle a state change of the audio output
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* \param newState the new state of the audio output
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*/
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void handleStateChanged(QAudio::State newState);
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signals:
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/*!
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* \brief Emitted whenever a playback started
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*/
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void playbackStarted();
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};
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#endif // SCSTWSTARTSOUNDPLAYER_H
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