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+/****************************************************************************
+**
+** 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 QGSTXVIMAGEBUFFER_P_H
+#define QGSTXVIMAGEBUFFER_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 <qabstractvideobuffer.h>
+#include <qvideosurfaceformat.h>
+#include <QtCore/qmutex.h>
+#include <QtCore/qwaitcondition.h>
+#include <QtCore/qqueue.h>
+
+#ifndef QT_NO_XVIDEO
+
+#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>
+#include "qabstractgstbufferpool_p.h"
+
+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;
+};
+
+Q_DECLARE_METATYPE(XvImage*)
+
+class QGstXvImageBufferPool : public QObject, public QAbstractGstBufferPool {
+Q_OBJECT
+friend class QGstXvImageBuffer;
+public:
+ QGstXvImageBufferPool(QObject *parent = 0);
+ virtual ~QGstXvImageBufferPool();
+
+ bool isFormatSupported(const QVideoSurfaceFormat &format) const;
+
+ GType bufferType() const;
+ GstBuffer *takeBuffer(const QVideoSurfaceFormat &format, GstCaps *caps);
+ void clear();
+
+ QAbstractVideoBuffer::HandleType handleType() const;
+ QAbstractVideoBuffer *prepareVideoBuffer(GstBuffer *buffer, int bytesPerLine);
+
+private slots:
+ void queuedAlloc();
+ void queuedDestroy();
+
+ void doClear();
+
+ void recycleBuffer(QGstXvImageBuffer *);
+ void destroyBuffer(QGstXvImageBuffer *);
+
+private:
+ void doAlloc();
+
+ 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::HANDLE m_threadId;
+};
+
+#endif //QT_NO_XVIDEO
+
+#endif