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| |
| #ifndef VIDEOSURFACEGSTSINK_P_H |
| #define VIDEOSURFACEGSTSINK_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 <gst/gst.h> |
| |
| #if GST_CHECK_VERSION(1,0,0) |
| |
| #include "qgstvideorenderersink_p.h" |
| |
| QT_BEGIN_NAMESPACE |
| typedef QGstVideoRendererSink QVideoSurfaceGstSink; |
| QT_END_NAMESPACE |
| |
| #else |
| |
| #include <gst/video/gstvideosink.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 "qgstbufferpoolinterface_p.h" |
| |
| QT_BEGIN_NAMESPACE |
| class QAbstractVideoSurface; |
| |
| class QVideoSurfaceGstDelegate : public QObject |
| { |
| Q_OBJECT |
| public: |
| QVideoSurfaceGstDelegate(QAbstractVideoSurface *surface); |
| ~QVideoSurfaceGstDelegate(); |
| |
| QList<QVideoFrame::PixelFormat> supportedPixelFormats( |
| QAbstractVideoBuffer::HandleType handleType = QAbstractVideoBuffer::NoHandle) const; |
| |
| QVideoSurfaceFormat surfaceFormat() const; |
| |
| bool start(const QVideoSurfaceFormat &format, int bytesPerLine); |
| void stop(); |
| |
| void unlock(); |
| |
| bool isActive(); |
| |
| QGstBufferPoolInterface *pool() { return m_pool; } |
| QMutex *poolMutex() { return &m_poolMutex; } |
| void clearPoolBuffers(); |
| |
| void flush(); |
| |
| GstFlowReturn render(GstBuffer *buffer); |
| |
| private slots: |
| void queuedStart(); |
| void queuedStop(); |
| void queuedFlush(); |
| void queuedRender(); |
| |
| void updateSupportedFormats(); |
| |
| private: |
| QPointer<QAbstractVideoSurface> m_surface; |
| QList<QVideoFrame::PixelFormat> m_supportedPixelFormats; |
| //pixel formats of buffers pool native type |
| QList<QVideoFrame::PixelFormat> m_supportedPoolPixelFormats; |
| QGstBufferPoolInterface *m_pool = nullptr; |
| QList<QGstBufferPoolInterface *> m_pools; |
| QMutex m_poolMutex; |
| QMutex m_mutex; |
| QWaitCondition m_setupCondition; |
| QWaitCondition m_renderCondition; |
| QVideoSurfaceFormat m_format; |
| QVideoFrame m_frame; |
| GstFlowReturn m_renderReturn = GST_FLOW_ERROR; |
| int m_bytesPerLine = 0; |
| bool m_started = false; |
| bool m_startCanceled = false; |
| }; |
| |
| class QVideoSurfaceGstSink |
| { |
| public: |
| GstVideoSink parent; |
| |
| static QVideoSurfaceGstSink *createSink(QAbstractVideoSurface *surface); |
| static void setSurface(QAbstractVideoSurface *surface) { Q_UNUSED(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); |
| static gboolean set_caps(GstBaseSink *sink, GstCaps *caps); |
| |
| static GstFlowReturn buffer_alloc( |
| GstBaseSink *sink, guint64 offset, guint size, GstCaps *caps, GstBuffer **buffer); |
| |
| static gboolean start(GstBaseSink *sink); |
| static gboolean stop(GstBaseSink *sink); |
| |
| static gboolean unlock(GstBaseSink *sink); |
| |
| #if GST_CHECK_VERSION(0, 10, 25) |
| static GstFlowReturn show_frame(GstVideoSink *sink, GstBuffer *buffer); |
| #else |
| static GstFlowReturn preroll(GstBaseSink *sink, GstBuffer *buffer); |
| static GstFlowReturn render(GstBaseSink *sink, GstBuffer *buffer); |
| #endif |
| |
| private: |
| QVideoSurfaceGstDelegate *delegate = nullptr; |
| |
| GstCaps *lastRequestedCaps = nullptr; |
| GstCaps *lastBufferCaps = nullptr; |
| QVideoSurfaceFormat *lastSurfaceFormat = nullptr; |
| }; |
| |
| class QVideoSurfaceGstSinkClass |
| { |
| public: |
| GstVideoSinkClass parent_class; |
| }; |
| |
| QT_END_NAMESPACE |
| |
| #endif |
| |
| #endif |