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Diffstat (limited to 'src/multimedia/gsttools_headers/qgstxvimagebuffer_p.h')
-rw-r--r-- | src/multimedia/gsttools_headers/qgstxvimagebuffer_p.h | 141 |
1 files changed, 141 insertions, 0 deletions
diff --git a/src/multimedia/gsttools_headers/qgstxvimagebuffer_p.h b/src/multimedia/gsttools_headers/qgstxvimagebuffer_p.h new file mode 100644 index 000000000..c6f74373e --- /dev/null +++ b/src/multimedia/gsttools_headers/qgstxvimagebuffer_p.h @@ -0,0 +1,141 @@ +/**************************************************************************** +** +** 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 |