199 lines
6.7 KiB
Java
199 lines
6.7 KiB
Java
/*************************************************************************
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*
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* OpenOffice.org - a multi-platform office productivity suite
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*
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* $RCSfile: FrameGrabber.java,v $
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*
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* $Revision: 1.3 $
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*
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* last change: $Author: rt $ $Date: 2005-09-07 19:39:37 $
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*
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* The Contents of this file are made available subject to
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* the terms of GNU Lesser General Public License Version 2.1.
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*
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*
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* GNU Lesser General Public License Version 2.1
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* =============================================
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* Copyright 2005 by Sun Microsystems, Inc.
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* 901 San Antonio Road, Palo Alto, CA 94303, USA
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License version 2.1, as published by the Free Software Foundation.
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*
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* This library 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 GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston,
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* MA 02111-1307 USA
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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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