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/****************************************************************************
**
** Copyright (C) 2013 Digia Plc and/or its subsidiary(-ies).
** 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 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>
#include <gst/gst.h>
#include "qgstbufferpoolinterface_p.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>
QT_BEGIN_NAMESPACE
class QGstXvImageBufferPool;
class QGstXvImageBuffer {
public:
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;
};
QT_END_NAMESPACE
Q_DECLARE_METATYPE(XvImage*)
QT_BEGIN_NAMESPACE
class QGstXvImageBufferPool : public QObject, public QGstBufferPoolInterface {
Q_OBJECT
Q_INTERFACES(QGstBufferPoolInterface)
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);
virtual QStringList keys() const;
private slots:
void queuedAlloc();
void queuedDestroy();
void doClear();
void recycleBuffer(QGstXvImageBuffer *);
void destroyBuffer(QGstXvImageBuffer *);
private:
void doAlloc();
Display *display() const;
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;
};
QT_END_NAMESPACE
#endif
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