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/****************************************************************************
**
** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
** All rights reserved.
** Contact: Nokia Corporation (qt-info@nokia.com)
**
** This file is part of the plugins of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:LGPL$
** No Commercial Usage
** This file contains pre-release code and may not be distributed.
** You may use this file in accordance with the terms and conditions
** contained in the Technology Preview License Agreement accompanying
** this package.
**
** 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, 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.
**
** If you have questions regarding the use of this file, please contact
** Nokia at qt-info@nokia.com.
**
**
**
**
**
**
**
**
** $QT_END_LICENSE$
**
****************************************************************************/
#ifndef QGSTXVIMAGEBUFFER_H
#define QGSTXVIMAGEBUFFER_H
#include <QtMultimedia/qabstractvideobuffer.h>
#include <QtMultimedia/qvideosurfaceformat.h>
#include <QtCore/qmutex.h>
#include <QtCore/qwaitcondition.h>
#include <QtCore/qqueue.h>
#include <X11/Xlib.h>
#include <sys/ipc.h>
#include <sys/shm.h>
#include <X11/extensions/XShm.h>
#include <X11/Xlib.h>
#include <X11/extensions/Xv.h>
#include <X11/extensions/Xvlib.h>
#include <gst/gst.h>
QT_BEGIN_HEADER
QT_BEGIN_NAMESPACE
class QGstXvImageBufferPool;
struct QGstXvImageBuffer {
GstBuffer buffer;
QGstXvImageBufferPool *pool;
XvImage *xvImage;
XShmSegmentInfo shmInfo;
bool markedForDeletion;
static GType get_type(void);
static void class_init(gpointer g_class, gpointer class_data);
static void buffer_init(QGstXvImageBuffer *xvimage, gpointer g_class);
static void buffer_finalize(QGstXvImageBuffer * xvimage);
static GstBufferClass *parent_class;
};
const QAbstractVideoBuffer::HandleType XvHandleType = QAbstractVideoBuffer::HandleType(4);
class QGstXvImageBufferPool : public QObject {
Q_OBJECT
friend class QGstXvImageBuffer;
public:
QGstXvImageBufferPool(QObject *parent = 0);
virtual ~QGstXvImageBufferPool();
bool isFormatSupported(const QVideoSurfaceFormat &format);
QGstXvImageBuffer *takeBuffer(const QVideoSurfaceFormat &format, GstCaps *caps);
void clear();
private slots:
void queuedAlloc();
void queuedDestroy();
void doClear();
void recycleBuffer(QGstXvImageBuffer *);
void destroyBuffer(QGstXvImageBuffer *);
private:
struct XvShmImage {
XvImage *xvImage;
XShmSegmentInfo shmInfo;
};
QMutex m_poolMutex;
QMutex m_allocMutex;
QWaitCondition m_allocWaitCondition;
QMutex m_destroyMutex;
QVideoSurfaceFormat m_format;
GstCaps *m_caps;
QList<QGstXvImageBuffer*> m_pool;
QList<QGstXvImageBuffer*> m_allBuffers;
QList<XvShmImage> m_imagesToDestroy;
};
QT_END_NAMESPACE
Q_DECLARE_METATYPE(::XvImage*)
QT_END_HEADER
#endif
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