1 files changed, 138 insertions, 0 deletions
diff --git a/src/plugins/multimedia/gstreamer/common/qgstvideorenderersink_p.h b/src/plugins/multimedia/gstreamer/common/qgstvideorenderersink_p.h
new file mode 100644
index 000000000..d9e3db462
--- /dev/null
+++ b/src/plugins/multimedia/gstreamer/common/qgstvideorenderersink_p.h
@@ -0,0 +1,138 @@
+// Copyright (C) 2016 Jolla Ltd.
+// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR LGPL-3.0-only OR GPL-2.0-only OR GPL-3.0-only
+
+#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/qvideoframeformat.h>
+#include <QtMultimedia/qvideoframe.h>
+#include <QtMultimedia/private/qtmultimediaglobal_p.h>
+#include <QtCore/qmutex.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 <qvideoframeformat.h>
+#include <qvideoframe.h>
+#include <common/qgstvideobuffer_p.h>
+#include <common/qgst_p.h>
+
+QT_BEGIN_NAMESPACE
+
+class QGstVideoRenderer : public QObject
+{
+public:
+    explicit QGstVideoRenderer(QGstreamerVideoSink *);
+    ~QGstVideoRenderer();
+
+    const QGstCaps &caps();
+
+    bool start(const QGstCaps &);
+    void stop();
+    void unlock();
+    bool proposeAllocation(GstQuery *);
+    GstFlowReturn render(GstBuffer *);
+    bool query(GstQuery *);
+    void gstEvent(GstEvent *);
+
+private:
+    void notify();
+    static QGstCaps createSurfaceCaps(QGstreamerVideoSink *);
+
+    void gstEventHandleTag(GstEvent *);
+    void gstEventHandleEOS(GstEvent *);
+
+    QMutex m_sinkMutex;
+    QGstreamerVideoSink *m_sink = nullptr; // written only from qt thread. so only readers on
+                                           // worker threads need to acquire the lock
+
+    // --- only accessed from gstreamer thread
+    const QGstCaps m_surfaceCaps;
+    QVideoFrameFormat m_format;
+    GstVideoInfo m_videoInfo{};
+    QGstCaps::MemoryFormat m_memoryFormat = QGstCaps::CpuMemory;
+    bool m_frameMirrored = false;
+    QtVideo::Rotation m_frameRotationAngle = QtVideo::Rotation::None;
+
+    // --- only accessed from qt thread
+    QVideoFrame m_currentVideoFrame;
+
+    struct RenderBufferState
+    {
+        QGstBufferHandle buffer;
+        QVideoFrameFormat format;
+        QGstCaps::MemoryFormat memoryFormat;
+        bool mirrored;
+        QtVideo::Rotation rotationAngle;
+
+        bool operator==(const RenderBufferState &rhs) const
+        {
+            return std::tie(buffer, format, memoryFormat, mirrored, rotationAngle)
+                    == std::tie(rhs.buffer, rhs.format, rhs.memoryFormat, rhs.mirrored,
+                                rhs.rotationAngle);
+        }
+    };
+    RenderBufferState m_currentState;
+};
+
+class QGstVideoRendererSink
+{
+public:
+    GstVideoSink parent{};
+
+    static QGstVideoRendererSink *createSink(QGstreamerVideoSink *surface);
+    static void setSink(QGstreamerVideoSink *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 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);
+    static gboolean event(GstBaseSink *element, GstEvent * event);
+
+private:
+    QGstVideoRenderer *renderer = nullptr;
+};
+
+
+class QGstVideoRendererSinkClass
+{
+public:
+    GstVideoSinkClass parent_class;
+};
+
+QT_END_NAMESPACE
+
+#endif