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Diffstat (limited to 'src/multimedia/gsttools_headers/qvideosurfacegstsink_p.h')
| -rw-r--r-- | src/multimedia/gsttools_headers/qvideosurfacegstsink_p.h | 174 |
1 files changed, 174 insertions, 0 deletions
diff --git a/src/multimedia/gsttools_headers/qvideosurfacegstsink_p.h b/src/multimedia/gsttools_headers/qvideosurfacegstsink_p.h new file mode 100644 index 000000000..438b796cf --- /dev/null +++ b/src/multimedia/gsttools_headers/qvideosurfacegstsink_p.h @@ -0,0 +1,174 @@ +/**************************************************************************** +** +** Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies). +** All rights reserved. +** Contact: Nokia Corporation (qt-info@nokia.com) +** +** This file is part of the Qt Toolkit. +** +** $QT_BEGIN_LICENSE:LGPL$ +** GNU Lesser General Public License Usage +** 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, Nokia gives you certain additional +** rights. These rights are described in the Nokia 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. +** +** Other Usage +** Alternatively, this file may be used in accordance with the terms and +** conditions contained in a signed written agreement between you and Nokia. +** +** +** +** +** +** $QT_END_LICENSE$ +** +****************************************************************************/ + +#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/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 "qabstractgstbufferpool_p.h" + +QT_BEGIN_NAMESPACE +class QAbstractVideoSurface; +QT_END_NAMESPACE + +#if defined(Q_WS_X11) && !defined(QT_NO_XVIDEO) +class QGstXvImageBuffer; +class QGstXvImageBufferPool; +#endif + +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(); + + bool isActive(); + + QAbstractGstBufferPool *pool() { return m_pool; } + QMutex *poolMutex() { return &m_poolMutex; } + + GstFlowReturn render(GstBuffer *buffer); + +private slots: + void queuedStart(); + void queuedStop(); + 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; + QAbstractGstBufferPool *m_pool; + QList<QAbstractGstBufferPool *> m_pools; + QMutex m_poolMutex; + QMutex m_mutex; + QWaitCondition m_setupCondition; + QWaitCondition m_renderCondition; + QVideoSurfaceFormat m_format; + QVideoFrame m_frame; + GstFlowReturn m_renderReturn; + int m_bytesPerLine; + bool m_started; + bool m_startCanceled; +}; + +class QVideoSurfaceGstSink +{ +public: + GstVideoSink parent; + + static QVideoSurfaceGstSink *createSink(QAbstractVideoSurface *surface); + static QVideoSurfaceFormat formatForCaps(GstCaps *caps, int *bytesPerLine = 0); + +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); + 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); + + static gboolean event(GstBaseSink *sink, GstEvent *event); + static GstFlowReturn preroll(GstBaseSink *sink, GstBuffer *buffer); + static GstFlowReturn render(GstBaseSink *sink, GstBuffer *buffer); + +private: + QVideoSurfaceGstDelegate *delegate; + + GstCaps *lastRequestedCaps; + GstCaps *lastBufferCaps; + QVideoSurfaceFormat *lastSurfaceFormat; +}; + + +class QVideoSurfaceGstSinkClass +{ +public: + GstVideoSinkClass parent_class; +}; + +#endif |