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diff --git a/examples/multimedia/video/qmlvideofx/shaders/sobeledgedetection2.fsh b/examples/multimedia/video/qmlvideofx/shaders/sobeledgedetection2.fsh
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index 000000000..aa836ca2c
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+++ b/examples/multimedia/video/qmlvideofx/shaders/sobeledgedetection2.fsh
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+/****************************************************************************
+**
+** Copyright (C) 2012 Digia Plc and/or its subsidiary(-ies).
+** Contact: http://www.qt-project.org/legal
+**
+** This file is part of the Qt Mobility Components.
+**
+** $QT_BEGIN_LICENSE:LGPL$
+** 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.
+**
+**
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+// Based on http://rastergrid.com/blog/downloads/frei-chen-edge-detector/
+
+#version 130
+uniform sampler2D source;
+uniform float dividerValue;
+uniform float weight;
+mat3 G[2] = mat3[](
+    mat3( 1.0, 2.0, 1.0, 0.0, 0.0, 0.0, -1.0, -2.0, -1.0 ),
+    mat3( 1.0, 0.0, -1.0, 2.0, 0.0, -2.0, 1.0, 0.0, -1.0 )
+);
+uniform lowp float qt_Opacity;
+in vec2 qt_TexCoord0;
+out vec4 FragmentColor;
+void main() {
+    vec2 uv = qt_TexCoord0.xy;
+    vec4 c = vec4(0.0);
+    if (uv.x < dividerValue) {
+        mat3 intensity;
+        float conv[2];
+        vec3 sample;
+        for (int i=0; i<3; ++i) {
+            for (int j=0; j<3; ++j) {
+                sample = texelFetch(source, ivec2(gl_FragCoord) + ivec2(i-1, j-1), 0).rgb;
+                intensity[i][j] = length(sample) * weight;
+            }
+        }
+        for (int i=0; i<2; ++i) {
+            float dp3 = dot(G[i][0], intensity[0]) + dot(G[i][1], intensity[1]) + dot(G[i][2], intensity[2]);
+            conv[i] = dp3 * dp3;
+        }
+        c = vec4(0.5 * sqrt(conv[0]*conv[0] + conv[1]*conv[1]));
+    } else {
+        c = texture2D(source, qt_TexCoord0);
+    }
+    FragmentColor = qt_Opacity * c;
+}