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Diffstat (limited to 'src/gsttools/qgstvideorenderersink_p.h')
-rw-r--r-- | src/gsttools/qgstvideorenderersink_p.h | 185 |
1 files changed, 185 insertions, 0 deletions
diff --git a/src/gsttools/qgstvideorenderersink_p.h b/src/gsttools/qgstvideorenderersink_p.h new file mode 100644 index 000000000..d2417a7c9 --- /dev/null +++ b/src/gsttools/qgstvideorenderersink_p.h @@ -0,0 +1,185 @@ +/**************************************************************************** +** +** Copyright (C) 2016 Jolla Ltd. +** Contact: https://www.qt.io/licensing/ +** +** This file is part of the Qt Toolkit. +** +** $QT_BEGIN_LICENSE:LGPL$ +** Commercial License Usage +** Licensees holding valid commercial Qt licenses may use this file in +** accordance with the commercial license agreement provided with the +** Software or, alternatively, in accordance with the terms contained in +** a written agreement between you and The Qt Company. For licensing terms +** and conditions see https://www.qt.io/terms-conditions. For further +** information use the contact form at https://www.qt.io/contact-us. +** +** GNU Lesser General Public License Usage +** Alternatively, this file may be used under the terms of the GNU Lesser +** General Public License version 3 as published by the Free Software +** Foundation and appearing in the file LICENSE.LGPL3 included in the +** packaging of this file. Please review the following information to +** ensure the GNU Lesser General Public License version 3 requirements +** will be met: https://www.gnu.org/licenses/lgpl-3.0.html. +** +** GNU General Public License Usage +** Alternatively, this file may be used under the terms of the GNU +** General Public License version 2.0 or (at your option) the GNU General +** Public license version 3 or any later version approved by the KDE Free +** Qt Foundation. The licenses are as published by the Free Software +** Foundation and appearing in the file LICENSE.GPL2 and LICENSE.GPL3 +** included in the packaging of this file. Please review the following +** information to ensure the GNU General Public License requirements will +** be met: https://www.gnu.org/licenses/gpl-2.0.html and +** https://www.gnu.org/licenses/gpl-3.0.html. +** +** $QT_END_LICENSE$ +** +****************************************************************************/ + +#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 <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" + +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; +}; + +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; + +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; + QList<QGstVideoRenderer *> m_renderers; + QGstVideoRenderer *m_renderer; + QGstVideoRenderer *m_activeRenderer; + + GstCaps *m_surfaceCaps; + GstCaps *m_startCaps; + GstBuffer *m_renderBuffer; + + bool m_notified; + bool m_stop; + bool m_flush; +}; + +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); + +private: + QVideoSurfaceGstDelegate *delegate; +}; + + +class QGstVideoRendererSinkClass +{ +public: + GstVideoSinkClass parent_class; +}; + +QT_END_NAMESPACE + +#endif |