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Diffstat (limited to 'src/multimedia/gsttools_headers/qgstvideorenderersink_p.h')
| -rw-r--r-- | src/multimedia/gsttools_headers/qgstvideorenderersink_p.h | 183 |
1 files changed, 183 insertions, 0 deletions
diff --git a/src/multimedia/gsttools_headers/qgstvideorenderersink_p.h b/src/multimedia/gsttools_headers/qgstvideorenderersink_p.h new file mode 100644 index 000000000..6feb371c4 --- /dev/null +++ b/src/multimedia/gsttools_headers/qgstvideorenderersink_p.h @@ -0,0 +1,183 @@ +/**************************************************************************** +** +** Copyright (C) 2014 Jolla Ltd. +** Contact: http://www.qt-project.org/legal +** +** 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 Digia. For licensing terms and +** conditions see http://qt.digia.com/licensing. For further information +** use the contact form at http://qt.digia.com/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 2.1 as published by the Free Software +** Foundation and appearing in the file LICENSE.LGPL included in the +** packaging of this file. Please review the following information to +** ensure the GNU Lesser General Public License version 2.1 requirements +** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html. +** +** In addition, as a special exception, Digia gives you certain additional +** rights. These rights are described in the Digia Qt LGPL Exception +** version 1.1, included in the file LGPL_EXCEPTION.txt in this package. +** +** GNU General Public License Usage +** Alternatively, this file may be used under the terms of the GNU +** General Public License version 3.0 as published by the Free Software +** Foundation and appearing in the file LICENSE.GPL included in the +** packaging of this file. Please review the following information to +** ensure the GNU General Public License version 3.0 requirements will be +** met: http://www.gnu.org/copyleft/gpl.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); + bool start(QAbstractVideoSurface *surface, GstCaps *caps); + void stop(QAbstractVideoSurface *surface); + + bool proposeAllocation(GstQuery *query); + + bool present(QAbstractVideoSurface *surface, GstBuffer *buffer); + void flush(QAbstractVideoSurface *surface); + +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(); + bool proposeAllocation(GstQuery *query); + + void flush(); + + GstFlowReturn render(GstBuffer *buffer, bool show); + + bool event(QEvent *event); + + static void handleShowPrerollChange(GObject *o, GParamSpec *p, gpointer d); + +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_lastBuffer; + + bool m_notified; + bool m_stop; + bool m_render; + bool m_flush; +}; + +class QGstVideoRendererSink +{ +public: + GstVideoSink parent; + + static QGstVideoRendererSink *createSink(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 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 GstFlowReturn preroll(GstBaseSink *sink, GstBuffer *buffer); + static GstFlowReturn render(GstBaseSink *sink, GstBuffer *buffer); + +private: + QVideoSurfaceGstDelegate *delegate; +}; + + +class QGstVideoRendererSinkClass +{ +public: + GstVideoSinkClass parent_class; +}; + +QT_END_NAMESPACE + +#endif |