399500f87e
Change-Id: Ia8c1c38aba1544603fada8c414cc856f365fd15b Reviewed-by: Akseli Salovaara <akseli.salovaara@digia.com> Reviewed-by: Sergio Ahumada <sergio.ahumada@digia.com>
119 lines
4.1 KiB
C++
119 lines
4.1 KiB
C++
/****************************************************************************
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**
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** Copyright (C) 2013 Digia Plc and/or its subsidiary(-ies).
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** Contact: http://www.qt-project.org/legal
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**
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** This file is part of the Qt Toolkit.
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**
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** $QT_BEGIN_LICENSE:LGPL$
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** Commercial License Usage
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** Licensees holding valid commercial Qt licenses may use this file in
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** accordance with the commercial license agreement provided with the
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** Software or, alternatively, in accordance with the terms contained in
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** a written agreement between you and Digia. For licensing terms and
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** conditions see http://qt.digia.com/licensing. For further information
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** use the contact form at http://qt.digia.com/contact-us.
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**
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** GNU Lesser General Public License Usage
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** Alternatively, this file may be used under the terms of the GNU Lesser
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** General Public License version 2.1 as published by the Free Software
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** Foundation and appearing in the file LICENSE.LGPL included in the
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** packaging of this file. Please review the following information to
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** ensure the GNU Lesser General Public License version 2.1 requirements
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** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
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**
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** In addition, as a special exception, Digia gives you certain additional
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** rights. These rights are described in the Digia Qt LGPL Exception
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** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
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**
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** GNU General Public License Usage
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** Alternatively, this file may be used under the terms of the GNU
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** General Public License version 3.0 as published by the Free Software
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** Foundation and appearing in the file LICENSE.GPL included in the
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** packaging of this file. Please review the following information to
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** ensure the GNU General Public License version 3.0 requirements will be
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** met: http://www.gnu.org/copyleft/gpl.html.
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**
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**
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** $QT_END_LICENSE$
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**
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****************************************************************************/
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#ifndef QGSTBUFFERPOOLINTERFACE_P_H
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#define QGSTBUFFERPOOLINTERFACE_P_H
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//
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// W A R N I N G
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// -------------
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//
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// This file is not part of the Qt API. It exists purely as an
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// implementation detail. This header file may change from version to
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// version without notice, or even be removed.
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//
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// We mean it.
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//
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#include <qabstractvideobuffer.h>
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#include <qvideosurfaceformat.h>
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#include <QtCore/qobject.h>
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#include <QtCore/qplugin.h>
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#include <gst/gst.h>
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QT_BEGIN_NAMESPACE
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const QLatin1String QGstBufferPoolPluginKey("bufferpool");
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/*!
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Abstract interface for video buffers allocation.
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*/
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class QGstBufferPoolInterface
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{
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public:
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virtual ~QGstBufferPoolInterface() {}
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virtual bool isFormatSupported(const QVideoSurfaceFormat &format) const = 0;
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virtual GstBuffer *takeBuffer(const QVideoSurfaceFormat &format, GstCaps *caps) = 0;
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virtual void clear() = 0;
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virtual QAbstractVideoBuffer::HandleType handleType() const = 0;
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/*!
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Build an QAbstractVideoBuffer instance from GstBuffer.
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Returns NULL if GstBuffer is not compatible with this buffer pool.
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This method is called from gstreamer video sink thread.
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*/
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virtual QAbstractVideoBuffer *prepareVideoBuffer(GstBuffer *buffer, int bytesPerLine) = 0;
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};
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#define QGstBufferPoolInterface_iid "org.qt-project.qt.gstbufferpool/5.0"
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Q_DECLARE_INTERFACE(QGstBufferPoolInterface, QGstBufferPoolInterface_iid)
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class QGstBufferPoolPlugin : public QObject, public QGstBufferPoolInterface
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{
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Q_OBJECT
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Q_INTERFACES(QGstBufferPoolInterface)
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public:
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explicit QGstBufferPoolPlugin(QObject *parent = 0);
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virtual ~QGstBufferPoolPlugin() {}
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virtual bool isFormatSupported(const QVideoSurfaceFormat &format) const = 0;
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virtual GstBuffer *takeBuffer(const QVideoSurfaceFormat &format, GstCaps *caps) = 0;
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virtual void clear() = 0;
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virtual QAbstractVideoBuffer::HandleType handleType() const = 0;
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/*!
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Build an QAbstractVideoBuffer instance from compatible GstBuffer.
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Returns NULL if GstBuffer is not compatible with this buffer pool.
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This method is called from gstreamer video sink thread.
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*/
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virtual QAbstractVideoBuffer *prepareVideoBuffer(GstBuffer *buffer, int bytesPerLine) = 0;
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};
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QT_END_NAMESPACE
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#endif
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