/*
* $RCSfile: JPEGCodec.java,v $
*
* Copyright (c) 2005 Sun Microsystems, Inc. All rights reserved.
*
* Use is subject to license terms.
*
* $Revision: 1.1 $
* $Date: 2005/02/11 04:55:36 $
* $State: Exp $
*/
package com.lightcrafts.media.jai.codecimpl;
import java.awt.image.RenderedImage;
import java.io.File;
import java.io.FileInputStream;
import java.io.InputStream;
import java.io.IOException;
import java.io.OutputStream;
import com.lightcrafts.media.jai.codec.ImageCodec;
import com.lightcrafts.media.jai.codec.ImageDecoder;
import com.lightcrafts.media.jai.codec.ImageDecodeParam;
import com.lightcrafts.media.jai.codec.ImageEncoder;
import com.lightcrafts.media.jai.codec.ImageEncodeParam;
import com.lightcrafts.media.jai.codec.JPEGEncodeParam;
import com.lightcrafts.media.jai.codec.SeekableStream;
/**
* @since EA2
*/
public final class JPEGCodec extends ImageCodec {
public JPEGCodec() {}
public String getFormatName() {
return "jpeg";
}
public Class getEncodeParamClass() {
return com.lightcrafts.media.jai.codec.JPEGEncodeParam.class;
}
public Class getDecodeParamClass() {
return com.lightcrafts.media.jai.codec.JPEGDecodeParam.class;
}
public boolean canEncodeImage(RenderedImage im,
ImageEncodeParam param) {
return true;
}
protected ImageEncoder createImageEncoder(OutputStream dst,
ImageEncodeParam param) {
JPEGEncodeParam p = null;
if (param != null) {
p = (JPEGEncodeParam)param;
}
return new JPEGImageEncoder(dst, p);
}
protected ImageDecoder createImageDecoder(InputStream src,
ImageDecodeParam param) {
return new JPEGImageDecoder(src, param);
}
protected ImageDecoder createImageDecoder(File src,
ImageDecodeParam param)
throws IOException {
return new JPEGImageDecoder(new FileInputStream(src), param);
}
protected ImageDecoder createImageDecoder(SeekableStream src,
ImageDecodeParam param) {
return new JPEGImageDecoder(src, param);
}
public int getNumHeaderBytes() {
return 3;
}
public boolean isFormatRecognized(byte[] header) {
return ((header[0] == (byte)0xff) &&
(header[1] == (byte)0xd8) &&
(header[2] == (byte)0xff));
}
}