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| |
| #ifndef DIRECTSHOWPLAYERSERVICE_H |
| #define DIRECTSHOWPLAYERSERVICE_H |
| |
| #include <dshow.h> |
| |
| #include "qmediaplayer.h" |
| #include "qmediaresource.h" |
| #include "qmediaservice.h" |
| #include "qmediatimerange.h" |
| |
| #include "directshoweventloop.h" |
| #include "directshowglobal.h" |
| |
| #include <QtCore/qcoreevent.h> |
| #include <QtCore/qmutex.h> |
| #include <QtCore/qurl.h> |
| #include <QtCore/qwaitcondition.h> |
| |
| QT_BEGIN_NAMESPACE |
| |
| class DirectShowAudioEndpointControl; |
| class DirectShowMetaDataControl; |
| class DirectShowPlayerControl; |
| class DirectShowVideoRendererControl; |
| class DirectShowAudioProbeControl; |
| class DirectShowVideoProbeControl; |
| class DirectShowSampleGrabber; |
| |
| class QMediaContent; |
| class QVideoWindowControl; |
| |
| class DirectShowPlayerService : public QMediaService |
| { |
| Q_OBJECT |
| public: |
| enum StreamType |
| { |
| AudioStream = 0x01, |
| VideoStream = 0x02 |
| }; |
| |
| DirectShowPlayerService(QObject *parent = nullptr); |
| ~DirectShowPlayerService() override; |
| |
| QMediaControl *requestControl(const char *name) override; |
| void releaseControl(QMediaControl *control) override; |
| |
| void load(const QMediaContent &media, QIODevice *stream); |
| void play(); |
| void pause(); |
| void stop(); |
| |
| qint64 position() const; |
| QMediaTimeRange availablePlaybackRanges() const; |
| |
| void seek(qint64 position); |
| void setRate(qreal rate); |
| |
| int bufferStatus() const; |
| |
| void setAudioOutput(IBaseFilter *filter); |
| void setVideoOutput(IBaseFilter *filter); |
| |
| protected: |
| void customEvent(QEvent *event) override; |
| |
| private Q_SLOTS: |
| void videoOutputChanged(); |
| |
| void onAudioBufferAvailable(double time, const QByteArray &data); |
| void onVideoBufferAvailable(double time, const QByteArray &data); |
| |
| private: |
| void releaseGraph(); |
| void updateStatus(); |
| |
| void updateAudioProbe(); |
| void updateVideoProbe(); |
| |
| int findStreamTypes(IBaseFilter *source) const; |
| int findStreamType(IPin *pin) const; |
| |
| bool isConnected(IBaseFilter *filter, PIN_DIRECTION direction) const; |
| IBaseFilter *getConnected(IBaseFilter *filter, PIN_DIRECTION direction) const; |
| |
| void run(); |
| |
| void doSetUrlSource(QMutexLocker *locker); |
| void doSetStreamSource(QMutexLocker *locker); |
| void doRender(QMutexLocker *locker); |
| void doFinalizeLoad(QMutexLocker *locker); |
| void doSetRate(QMutexLocker *locker); |
| void doSeek(QMutexLocker *locker); |
| void doPlay(QMutexLocker *locker); |
| void doPause(QMutexLocker *locker); |
| void doStop(QMutexLocker *locker); |
| void doReleaseAudioOutput(QMutexLocker *locker); |
| void doReleaseVideoOutput(QMutexLocker *locker); |
| void doReleaseGraph(QMutexLocker *locker); |
| void doSetVideoProbe(QMutexLocker *locker); |
| void doSetAudioProbe(QMutexLocker *locker); |
| void doReleaseVideoProbe(QMutexLocker *locker); |
| void doReleaseAudioProbe(QMutexLocker *locker); |
| |
| void graphEvent(QMutexLocker *locker); |
| |
| enum Task |
| { |
| Shutdown = 0x00001, |
| SetUrlSource = 0x00002, |
| SetStreamSource = 0x00004, |
| SetSource = SetUrlSource | SetStreamSource, |
| SetAudioOutput = 0x00008, |
| SetVideoOutput = 0x00010, |
| SetOutputs = SetAudioOutput | SetVideoOutput, |
| SetAudioProbe = 0x00020, |
| SetVideoProbe = 0x00040, |
| SetProbes = SetAudioProbe | SetVideoProbe, |
| Render = 0x00080, |
| FinalizeLoad = 0x00100, |
| SetRate = 0x00200, |
| Seek = 0x00400, |
| Play = 0x00800, |
| Pause = 0x01000, |
| Stop = 0x02000, |
| ReleaseGraph = 0x04000, |
| ReleaseAudioOutput = 0x08000, |
| ReleaseVideoOutput = 0x10000, |
| ReleaseAudioProbe = 0x20000, |
| ReleaseVideoProbe = 0x40000, |
| ReleaseFilters = ReleaseGraph | ReleaseAudioOutput |
| | ReleaseVideoOutput | ReleaseAudioProbe |
| | ReleaseVideoProbe |
| }; |
| |
| enum Event |
| { |
| FinalizedLoad = QEvent::User, |
| Error, |
| RateChange, |
| Started, |
| Paused, |
| DurationChange, |
| StatusChange, |
| EndOfMedia, |
| PositionChange |
| }; |
| |
| enum GraphStatus |
| { |
| NoMedia, |
| Loading, |
| Loaded, |
| InvalidMedia |
| }; |
| |
| DirectShowPlayerControl *m_playerControl = nullptr; |
| DirectShowMetaDataControl *m_metaDataControl = nullptr; |
| DirectShowVideoRendererControl *m_videoRendererControl = nullptr; |
| QVideoWindowControl *m_videoWindowControl = nullptr; |
| DirectShowAudioEndpointControl *m_audioEndpointControl = nullptr; |
| DirectShowAudioProbeControl *m_audioProbeControl = nullptr; |
| DirectShowVideoProbeControl *m_videoProbeControl = nullptr; |
| DirectShowSampleGrabber *m_audioSampleGrabber = nullptr; |
| DirectShowSampleGrabber *m_videoSampleGrabber = nullptr; |
| |
| QThread *m_taskThread = nullptr; |
| DirectShowEventLoop *m_loop; |
| int m_pendingTasks = 0; |
| int m_executingTask = 0; |
| int m_executedTasks = 0; |
| int m_streamTypes = 0; |
| HANDLE m_taskHandle; |
| HANDLE m_eventHandle = nullptr; |
| GraphStatus m_graphStatus = NoMedia; |
| QMediaPlayer::Error m_error = QMediaPlayer::NoError; |
| QIODevice *m_stream = nullptr; |
| IFilterGraph2 *m_graph = nullptr; |
| ICaptureGraphBuilder2 *m_graphBuilder = nullptr; |
| IBaseFilter *m_source = nullptr; |
| IBaseFilter *m_audioOutput = nullptr; |
| IBaseFilter *m_videoOutput = nullptr; |
| qreal m_rate = 1; |
| qint64 m_position = 0; |
| qint64 m_seekPosition = -1; |
| qint64 m_duration = 0; |
| QMediaTimeRange m_playbackRange; |
| QUrl m_url; |
| QString m_errorString; |
| QMutex m_mutex; |
| bool m_buffering = false; |
| bool m_seekable = false; |
| bool m_atEnd = false; |
| bool m_dontCacheNextSeekResult = false; |
| QVariantMap m_metadata; |
| |
| friend class DirectShowPlayerServiceThread; |
| }; |
| |
| QT_END_NAMESPACE |
| |
| #endif |