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Code Issues Releases Wiki Activity

Convert Loader-related thread-code to async code

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Closes #10
This commit is contained in:
Chris Josten 2021-08-22 02:33:04 +02:00
parent f028e38b7a
commit 4bbc86d31c
6 changed files with 205 additions and 334 deletions
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66
core/include/JellyfinQt/viewmodel/playbackmanager.h
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@ -70,7 +70,7 @@ class PlaybackManager : public QObject, public QQmlParserStatus {
Q_OBJECT
Q_INTERFACES(QQmlParserStatus)
public:
using FetchCallback = std::function<void(QUrl &&, PlayMethod)>;
using ItemUrlLoader = Support::Loader<DTO::PlaybackInfoResponse, Jellyfin::Loader::GetPostedPlaybackInfoParams>;
explicit PlaybackManager(QObject *parent = nullptr);
@ -179,13 +179,12 @@ private slots:
*/
void updatePlaybackInfo();
/// Called when the fetcherThread has fetched the playback URL and playSession
void onItemExtraDataReceived(const QString &itemId, const QUrl &url, const QString &playSession,
/// Called when we have fetched the playback URL and playSession
void onItemUrlReceived(const QString &itemId, const QUrl &url, const QString &playSession,
// Fully specify class to please MOC
Jellyfin::DTO::PlayMethodClass::Value playMethod);
/// Called when the fetcherThread encountered an error
/// Called when we have encountered an error
void onItemErrorReceived(const QString &itemId, const QString &errorString);
void onDestroyed();
private:
/// Factor to multiply with when converting from milliseconds to ticks.
@ -228,9 +227,6 @@ private:
*/
bool m_autoOpen = false;
// Playback-related members
ItemUrlFetcherThread *m_urlFetcherThread;
QMediaPlayer::State m_oldState = QMediaPlayer::StoppedState;
PlayMethod m_playMethod = PlayMethod::Transcode;
QMediaPlayer::State m_playbackState = QMediaPlayer::StoppedState;
@ -252,6 +248,9 @@ private:
*/
void postPlaybackInfo(PlaybackInfoType type);
void requestItemUrl(QSharedPointer<Model::Item> item);
void handlePlaybackInfoResponse(QString itemId, QString mediaType, DTO::PlaybackInfoResponse &response);
// QQmlParserListener interface
void classBegin() override { m_qmlIsParsingComponent = true; }
@ -262,57 +261,6 @@ private:
const qint64 PRELOAD_DURATION = 15 * 1000;
};
/// Thread that fetches the Item's stream URL always in the given order they were requested
class ItemUrlFetcherThread : public QThread {
Q_OBJECT
public:
ItemUrlFetcherThread(PlaybackManager *manager);
/**
* @brief Adds an item to the queue of items that should be requested
* @param item The item to fetch the URL of
*/
void addItemToQueue(QSharedPointer<Model::Item> item);
signals:
/**
* @brief Emitted when the url of the item with the itemId has been retrieved.
* @param itemId The id of the item of which the URL has been retrieved
* @param itemUrl The retrieved url
* @param playSession The playsession set by the Jellyfin Server
*/
void itemUrlFetched(QString itemId, QUrl itemUrl, QString playSession, Jellyfin::DTO::PlayMethodClass::Value playMethod);
void itemUrlFetchError(QString itemId, QString errorString);
void prepareLoaderRequested(QPrivateSignal);
public slots:
/**
* @brief Ask the thread nicely to stop running.
*/
void cleanlyStop();
private slots:
void onPrepareLoader();
protected:
void run() override;
private:
PlaybackManager *m_parent;
Support::Loader<DTO::PlaybackInfoResponse, Jellyfin::Loader::GetPostedPlaybackInfoParams> *m_loader;
QMutex m_queueModifyMutex;
QQueue<QSharedPointer<Model::Item>> m_queue;
QMutex m_urlWaitConditionMutex;
/// WaitCondition on which this threads waits until an Item is put into the queue
QWaitCondition m_urlWaitCondition;
QMutex m_waitLoaderPreparedMutex;
/// WaitCondition on which this threads waits until the loader has been prepared.
QWaitCondition m_waitLoaderPrepared;
bool m_keepRunning = true;
bool m_loaderPrepared = false;
};
} // NS ViewModel
} // NS Jellyfin