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adding zero-copy-QSGVideoNode for imx6

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On imx6 there is a platform-specific API to implement
memory-mapping from gstreamer-buffer to opengl-texture.

This plugin uses this API to avoid CPU-based-memory-copy.

This allows fluid video-playback up to 1080p with very little CPU load.
Before even 720p used one cpu-core completely and wasn't fluid.

Change-Id: I0c33eb5d475393a65459291ce9290fa0753de4a5
Reviewed-by: Andy Nichols <andy.nichols@digia.com>
This commit is contained in:
Thomas Senyk
2014-01-28 14:49:32 +01:00
committed by The Qt Project
parent 72b995ad79
commit db7f7cc565
12 changed files with 749 additions and 1 deletions
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58
src/plugins/videonode/imx6/qsgvivantevideonodefactory.h Normal file
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/****************************************************************************
**
** Copyright (C) 2014 Pelagicore AG
** 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 QSGVIDEONODEFACTORY_VIVANTE_H
#define QSGVIDEONODEFACTORY_VIVANTE_H
#include <QObject>
#include <private/qsgvideonode_p.h>
class QSGVivanteVideoNodeFactory : public QObject, public QSGVideoNodeFactoryInterface
{
public:
Q_OBJECT
Q_PLUGIN_METADATA(IID QSGVideoNodeFactoryInterface_iid FILE "imx6.json")
Q_INTERFACES(QSGVideoNodeFactoryInterface)
QList<QVideoFrame::PixelFormat> supportedPixelFormats(QAbstractVideoBuffer::HandleType handleType) const;
QSGVideoNode *createNode(const QVideoSurfaceFormat &format);
};
#endif // QSGVIDEONODEFACTORY_VIVANTE_H