190 lines
6.4 KiB
Java
190 lines
6.4 KiB
Java
/*************************************************************************
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*
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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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*
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* Copyright 2000, 2010 Oracle and/or its affiliates.
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*
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* OpenOffice.org - a multi-platform office productivity suite
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*
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* This file is part of OpenOffice.org.
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*
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* OpenOffice.org is free software: you can redistribute it and/or modify
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* it under the terms of the GNU Lesser General Public License version 3
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* only, as published by the Free Software Foundation.
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*
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* OpenOffice.org is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU Lesser General Public License version 3 for more details
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* (a copy is included in the LICENSE file that accompanied this code).
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*
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* You should have received a copy of the GNU Lesser General Public License
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* version 3 along with OpenOffice.org. If not, see
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* <http://www.openoffice.org/license.html>
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* for a copy of the LGPLv3 License.
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*
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************************************************************************/
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import com.sun.star.uno.UnoRuntime;
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import com.sun.star.uno.XComponentContext;
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import com.sun.star.uno.AnyConverter;
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import com.sun.star.uno.IQueryInterface;
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import com.sun.star.lang.XInitialization;
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import com.sun.star.lang.XEventListener;
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import com.sun.star.awt.*;
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import com.sun.star.media.*;
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import com.sun.star.graphic.*;
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// -----------------
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// - Player Window -
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// -----------------
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public class FrameGrabber implements com.sun.star.lang.XServiceInfo,
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com.sun.star.media.XFrameGrabber
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{
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private com.sun.star.lang.XMultiServiceFactory maFactory = null;
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private javax.media.Player maPlayer = null;
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private javax.media.control.FrameGrabbingControl maFrameGrabbingControl = null;
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// -------------------------------------------------------------------------
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public FrameGrabber( com.sun.star.lang.XMultiServiceFactory aFactory, String aURL )
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{
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maFactory = aFactory;
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try
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{
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maPlayer = javax.media.Manager.createRealizedPlayer( new java.net.URL( aURL ) );
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}
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catch( java.net.MalformedURLException e )
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{
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}
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catch( java.io.IOException e )
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{
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}
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catch( javax.media.NoPlayerException e )
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{
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}
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catch( javax.media.CannotRealizeException e )
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{
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}
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catch( java.lang.Exception e )
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{
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}
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if( maPlayer != null )
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{
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maFrameGrabbingControl = (javax.media.control.FrameGrabbingControl) maPlayer.getControl(
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"javax.media.control.FrameGrabbingControl" );
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}
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}
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// -------------------------------------------------------------------------
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public com.sun.star.graphic.XGraphic implImageToXGraphic( java.awt.Image aImage )
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{
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com.sun.star.graphic.XGraphic aRet = null;
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if( maFactory != null && aImage != null )
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{
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if( aImage instanceof java.awt.image.BufferedImage )
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{
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java.io.File aTempFile = null;
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try
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{
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aTempFile = java.io.File.createTempFile( "sv0", ".png" );
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if( aTempFile.canWrite() )
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{
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javax.imageio.ImageIO.write( (java.awt.image.BufferedImage) aImage, "png", aTempFile );
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com.sun.star.graphic.XGraphicProvider aProvider =
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(com.sun.star.graphic.XGraphicProvider) UnoRuntime.queryInterface(
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com.sun.star.graphic.XGraphicProvider.class,
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maFactory.createInstance("com.sun.star.graphic.GraphicProvider") );
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if( aProvider != null )
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{
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com.sun.star.beans.PropertyValue[] aArgs = new com.sun.star.beans.PropertyValue[ 1 ];
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aArgs[ 0 ] = new com.sun.star.beans.PropertyValue();
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aArgs[ 0 ].Name = "URL";
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aArgs[ 0 ].Value = "file://" + aTempFile.toString();
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aRet = aProvider.queryGraphic( aArgs );
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}
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}
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}
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catch( java.lang.IllegalArgumentException aExcp )
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{
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}
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catch( java.io.IOException aExcp )
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{
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}
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catch( com.sun.star.uno.Exception aExcp )
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{
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}
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if( aTempFile != null )
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aTempFile.delete();
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}
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}
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return aRet;
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}
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// -----------------
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// - XFrameGrabber -
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// -----------------
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public synchronized com.sun.star.graphic.XGraphic grabFrame( double fMediaTime )
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{
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com.sun.star.graphic.XGraphic aRet = null;
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if( maFrameGrabbingControl != null )
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{
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if( fMediaTime >= 0.0 && fMediaTime <= maPlayer.getDuration().getSeconds() )
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{
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maPlayer.setMediaTime( new javax.media.Time( fMediaTime ) );
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javax.media.Buffer aBuffer = maFrameGrabbingControl.grabFrame();
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if( aBuffer != null && aBuffer.getFormat() instanceof javax.media.format.VideoFormat )
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{
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aRet = implImageToXGraphic( new javax.media.util.BufferToImage(
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(javax.media.format.VideoFormat) aBuffer.getFormat() ).
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createImage( aBuffer ) );
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}
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}
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}
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return aRet;
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}
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// ----------------
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// - XServiceInfo -
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// ----------------
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private static final String s_implName = "com.sun.star.comp.FrameGrabber_Java";
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private static final String s_serviceName = "com.sun.star.media.FrameGrabber_Java";
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public synchronized String getImplementationName()
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{
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return s_implName;
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}
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// -------------------------------------------------------------------------
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public synchronized String [] getSupportedServiceNames()
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{
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return new String [] { s_serviceName };
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}
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// -------------------------------------------------------------------------
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public synchronized boolean supportsService( String serviceName )
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{
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return serviceName.equals( s_serviceName );
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}
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}
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