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| |
| #ifndef QGSTVIDEORENDERERSINK_P_H |
| #define QGSTVIDEORENDERERSINK_P_H |
| |
| // |
| // W A R N I N G |
| // ------------- |
| // |
| // This file is not part of the Qt API. It exists purely as an |
| // implementation detail. This header file may change from version to |
| // version without notice, or even be removed. |
| // |
| // We mean it. |
| // |
| |
| #include <QtMultimedia/private/qtmultimediaglobal_p.h> |
| #include <gst/video/gstvideosink.h> |
| #include <gst/video/video.h> |
| |
| #include <QtCore/qlist.h> |
| #include <QtCore/qmutex.h> |
| #include <QtCore/qqueue.h> |
| #include <QtCore/qpointer.h> |
| #include <QtCore/qwaitcondition.h> |
| #include <qvideosurfaceformat.h> |
| #include <qvideoframe.h> |
| #include <qabstractvideobuffer.h> |
| |
| #include "qgstvideorendererplugin_p.h" |
| |
| #include "qgstvideorendererplugin_p.h" |
| |
| #if QT_CONFIG(gstreamer_gl) |
| #ifndef GST_USE_UNSTABLE_API |
| #define GST_USE_UNSTABLE_API |
| #endif |
| #include <gst/gl/gl.h> |
| #endif |
| |
| QT_BEGIN_NAMESPACE |
| class QAbstractVideoSurface; |
| |
| class QGstDefaultVideoRenderer : public QGstVideoRenderer |
| { |
| public: |
| QGstDefaultVideoRenderer(); |
| ~QGstDefaultVideoRenderer(); |
| |
| GstCaps *getCaps(QAbstractVideoSurface *surface) override; |
| bool start(QAbstractVideoSurface *surface, GstCaps *caps) override; |
| void stop(QAbstractVideoSurface *surface) override; |
| |
| bool proposeAllocation(GstQuery *query) override; |
| |
| bool present(QAbstractVideoSurface *surface, GstBuffer *buffer) override; |
| void flush(QAbstractVideoSurface *surface) override; |
| |
| private: |
| QVideoSurfaceFormat m_format; |
| GstVideoInfo m_videoInfo; |
| bool m_flushed = true; |
| QAbstractVideoBuffer::HandleType m_handleType = QAbstractVideoBuffer::NoHandle; |
| }; |
| |
| class QVideoSurfaceGstDelegate : public QObject |
| { |
| Q_OBJECT |
| public: |
| QVideoSurfaceGstDelegate(QAbstractVideoSurface *surface); |
| ~QVideoSurfaceGstDelegate(); |
| |
| GstCaps *caps(); |
| |
| bool start(GstCaps *caps); |
| void stop(); |
| void unlock(); |
| bool proposeAllocation(GstQuery *query); |
| |
| void flush(); |
| |
| GstFlowReturn render(GstBuffer *buffer); |
| |
| bool event(QEvent *event) override; |
| bool query(GstQuery *query); |
| |
| private slots: |
| bool handleEvent(QMutexLocker *locker); |
| void updateSupportedFormats(); |
| |
| private: |
| void notify(); |
| bool waitForAsyncEvent(QMutexLocker *locker, QWaitCondition *condition, unsigned long time); |
| |
| QPointer<QAbstractVideoSurface> m_surface; |
| |
| QMutex m_mutex; |
| QWaitCondition m_setupCondition; |
| QWaitCondition m_renderCondition; |
| GstFlowReturn m_renderReturn = GST_FLOW_OK; |
| QList<QGstVideoRenderer *> m_renderers; |
| QGstVideoRenderer *m_renderer = nullptr; |
| QGstVideoRenderer *m_activeRenderer = nullptr; |
| |
| GstCaps *m_surfaceCaps = nullptr; |
| GstCaps *m_startCaps = nullptr; |
| GstBuffer *m_renderBuffer = nullptr; |
| #if QT_CONFIG(gstreamer_gl) |
| GstGLContext *m_gstGLDisplayContext = nullptr; |
| #endif |
| |
| bool m_notified = false; |
| bool m_stop = false; |
| bool m_flush = false; |
| }; |
| |
| class Q_GSTTOOLS_EXPORT QGstVideoRendererSink |
| { |
| public: |
| GstVideoSink parent; |
| |
| static QGstVideoRendererSink *createSink(QAbstractVideoSurface *surface); |
| static void setSurface(QAbstractVideoSurface *surface); |
| |
| private: |
| static GType get_type(); |
| static void class_init(gpointer g_class, gpointer class_data); |
| static void base_init(gpointer g_class); |
| static void instance_init(GTypeInstance *instance, gpointer g_class); |
| |
| static void finalize(GObject *object); |
| |
| static void handleShowPrerollChange(GObject *o, GParamSpec *p, gpointer d); |
| |
| static GstStateChangeReturn change_state(GstElement *element, GstStateChange transition); |
| |
| static GstCaps *get_caps(GstBaseSink *sink, GstCaps *filter); |
| static gboolean set_caps(GstBaseSink *sink, GstCaps *caps); |
| |
| static gboolean propose_allocation(GstBaseSink *sink, GstQuery *query); |
| |
| static gboolean stop(GstBaseSink *sink); |
| |
| static gboolean unlock(GstBaseSink *sink); |
| |
| static GstFlowReturn show_frame(GstVideoSink *sink, GstBuffer *buffer); |
| static gboolean query(GstBaseSink *element, GstQuery *query); |
| |
| private: |
| QVideoSurfaceGstDelegate *delegate = nullptr; |
| }; |
| |
| |
| class QGstVideoRendererSinkClass |
| { |
| public: |
| GstVideoSinkClass parent_class; |
| }; |
| |
| QT_END_NAMESPACE |
| |
| #endif |