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Diffstat (limited to 'avmedia/source/java/FrameGrabber.java')
| -rw-r--r-- | avmedia/source/java/FrameGrabber.java | 190 |
1 files changed, 190 insertions, 0 deletions
diff --git a/avmedia/source/java/FrameGrabber.java b/avmedia/source/java/FrameGrabber.java new file mode 100644 index 000000000000..1a0deda4ce57 --- /dev/null +++ b/avmedia/source/java/FrameGrabber.java @@ -0,0 +1,190 @@ +/************************************************************************* + * + * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. + * + * Copyright 2000, 2010 Oracle and/or its affiliates. + * + * OpenOffice.org - a multi-platform office productivity suite + * + * This file is part of OpenOffice.org. + * + * OpenOffice.org is free software: you can redistribute it and/or modify + * it under the terms of the GNU Lesser General Public License version 3 + * only, as published by the Free Software Foundation. + * + * OpenOffice.org is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU Lesser General Public License version 3 for more details + * (a copy is included in the LICENSE file that accompanied this code). + * + * You should have received a copy of the GNU Lesser General Public License + * version 3 along with OpenOffice.org. If not, see + * <http://www.openoffice.org/license.html> + * for a copy of the LGPLv3 License. + * + ************************************************************************/ + +import com.sun.star.uno.UnoRuntime; +import com.sun.star.uno.XComponentContext; +import com.sun.star.uno.AnyConverter; +import com.sun.star.uno.IQueryInterface; +import com.sun.star.lang.XInitialization; +import com.sun.star.lang.XEventListener; +import com.sun.star.awt.*; +import com.sun.star.media.*; +import com.sun.star.graphic.*; + +// ----------------- +// - Player Window - +// ----------------- + +public class FrameGrabber implements com.sun.star.lang.XServiceInfo, + com.sun.star.media.XFrameGrabber +{ + private com.sun.star.lang.XMultiServiceFactory maFactory = null; + private javax.media.Player maPlayer = null; + private javax.media.control.FrameGrabbingControl maFrameGrabbingControl = null; + + // ------------------------------------------------------------------------- + + public FrameGrabber( com.sun.star.lang.XMultiServiceFactory aFactory, String aURL ) + { + maFactory = aFactory; + + try + { + maPlayer = javax.media.Manager.createRealizedPlayer( new java.net.URL( aURL ) ); + } + catch( java.net.MalformedURLException e ) + { + } + catch( java.io.IOException e ) + { + } + catch( javax.media.NoPlayerException e ) + { + } + catch( javax.media.CannotRealizeException e ) + { + } + catch( java.lang.Exception e ) + { + } + + if( maPlayer != null ) + { + maFrameGrabbingControl = (javax.media.control.FrameGrabbingControl) maPlayer.getControl( + "javax.media.control.FrameGrabbingControl" ); + } + } + + // ------------------------------------------------------------------------- + + public com.sun.star.graphic.XGraphic implImageToXGraphic( java.awt.Image aImage ) + { + com.sun.star.graphic.XGraphic aRet = null; + + if( maFactory != null && aImage != null ) + { + if( aImage instanceof java.awt.image.BufferedImage ) + { + java.io.File aTempFile = null; + + try + { + aTempFile = java.io.File.createTempFile( "sv0", ".png" ); + + if( aTempFile.canWrite() ) + { + javax.imageio.ImageIO.write( (java.awt.image.BufferedImage) aImage, "png", aTempFile ); + + com.sun.star.graphic.XGraphicProvider aProvider = + (com.sun.star.graphic.XGraphicProvider) UnoRuntime.queryInterface( + com.sun.star.graphic.XGraphicProvider.class, + maFactory.createInstance("com.sun.star.graphic.GraphicProvider") ); + + if( aProvider != null ) + { + com.sun.star.beans.PropertyValue[] aArgs = new com.sun.star.beans.PropertyValue[ 1 ]; + + aArgs[ 0 ] = new com.sun.star.beans.PropertyValue(); + aArgs[ 0 ].Name = "URL"; + aArgs[ 0 ].Value = "file://" + aTempFile.toString(); + + aRet = aProvider.queryGraphic( aArgs ); + } + } + } + catch( java.lang.IllegalArgumentException aExcp ) + { + } + catch( java.io.IOException aExcp ) + { + } + catch( com.sun.star.uno.Exception aExcp ) + { + } + + if( aTempFile != null ) + aTempFile.delete(); + } + } + + return aRet; + } + + // ----------------- + // - XFrameGrabber - + // ----------------- + + public synchronized com.sun.star.graphic.XGraphic grabFrame( double fMediaTime ) + { + com.sun.star.graphic.XGraphic aRet = null; + + if( maFrameGrabbingControl != null ) + { + if( fMediaTime >= 0.0 && fMediaTime <= maPlayer.getDuration().getSeconds() ) + { + maPlayer.setMediaTime( new javax.media.Time( fMediaTime ) ); + + javax.media.Buffer aBuffer = maFrameGrabbingControl.grabFrame(); + + if( aBuffer != null && aBuffer.getFormat() instanceof javax.media.format.VideoFormat ) + { + aRet = implImageToXGraphic( new javax.media.util.BufferToImage( + (javax.media.format.VideoFormat) aBuffer.getFormat() ). + createImage( aBuffer ) ); + } + } + } + + return aRet; + } + + // ---------------- + // - XServiceInfo - + // ---------------- + + private static final String s_implName = "com.sun.star.comp.FrameGrabber_Java"; + private static final String s_serviceName = "com.sun.star.media.FrameGrabber_Java"; + + public synchronized String getImplementationName() + { + return s_implName; + } + + // ------------------------------------------------------------------------- + + public synchronized String [] getSupportedServiceNames() + { + return new String [] { s_serviceName }; + } + + // ------------------------------------------------------------------------- + + public synchronized boolean supportsService( String serviceName ) + { + return serviceName.equals( s_serviceName ); + } +} |