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Diffstat (limited to 'examples/multimedia/video/qmlvideofilter_opencl/main.qml')
-rw-r--r-- | examples/multimedia/video/qmlvideofilter_opencl/main.qml | 114 |
1 files changed, 114 insertions, 0 deletions
diff --git a/examples/multimedia/video/qmlvideofilter_opencl/main.qml b/examples/multimedia/video/qmlvideofilter_opencl/main.qml new file mode 100644 index 000000000..636df568c --- /dev/null +++ b/examples/multimedia/video/qmlvideofilter_opencl/main.qml @@ -0,0 +1,114 @@ +/**************************************************************************** +** +** Copyright (C) 2015 Digia Plc and/or its subsidiary(-ies). +** Contact: http://www.qt-project.org/legal +** +** This file is part of the examples of the Qt Multimedia module. +** +** $QT_BEGIN_LICENSE:LGPL21$ +** 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 or version 3 as published by the Free +** Software Foundation and appearing in the file LICENSE.LGPLv21 and +** LICENSE.LGPLv3 included in the packaging of this file. Please review the +** following information to ensure the GNU Lesser General Public License +** requirements will be met: https://www.gnu.org/licenses/lgpl.html and +** 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. +** +** $QT_END_LICENSE$ +** +****************************************************************************/ + +import QtQuick 2.0 +import QtMultimedia 5.5 +import qmlvideofilter.cl.test 1.0 + +Item { + width: 1024 + height: 768 + + Camera { + id: camera + } + + MediaPlayer { + id: player + autoPlay: true + source: videoFilename + } + + VideoOutput { + id: output + source: videoFilename !== "" ? player : camera + filters: [ infofilter, clfilter ] + anchors.fill: parent + } + + CLFilter { + id: clfilter + // Animate a property which is passed to the OpenCL kernel. + SequentialAnimation on factor { + loops: Animation.Infinite + NumberAnimation { + from: 1 + to: 20 + duration: 6000 + } + NumberAnimation { + from: 20 + to: 1 + duration: 3000 + } + } + } + + InfoFilter { + // This filter does not change the image. Instead, it provides some results calculated from the frame. + id: infofilter + onFinished: { + info.res = result.frameResolution.width + "x" + result.frameResolution.height; + info.type = result.handleType; + info.fmt = result.pixelFormat; + } + } + + Column { + Text { + font.pointSize: 20 + color: "green" + text: "Transformed with OpenCL on GPU\nClick to disable and enable the emboss filter" + } + Text { + font.pointSize: 12 + color: "green" + text: "Emboss factor " + Math.round(clfilter.factor) + visible: clfilter.active + } + Text { + id: info + font.pointSize: 12 + color: "green" + property string res + property string type + property int fmt + text: "Input resolution: " + res + " Input frame type: " + type + (fmt ? " Pixel format: " + fmt : "") + } + } + + MouseArea { + anchors.fill: parent + onClicked: clfilter.active = !clfilter.active + } +} |