/*
* Copyright (c) 2000, 2004, Oracle and/or its affiliates. All rights reserved.
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* This code is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License version 2 only, as
* published by the Free Software Foundation. Oracle designates this
* particular file as subject to the "Classpath" exception as provided
* by Oracle in the LICENSE file that accompanied this code.
*
* This code 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 General Public License
* version 2 for more details (a copy is included in the LICENSE file that
* accompanied this code).
*
* You should have received a copy of the GNU General Public License version
* 2 along with this work; if not, write to the Free Software Foundation,
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package com.sun.imageio.plugins.jpeg;
import java.util.Locale;
import javax.imageio.spi.ImageReaderSpi;
import javax.imageio.stream.ImageInputStream;
import javax.imageio.spi.IIORegistry;
import javax.imageio.spi.ServiceRegistry;
import java.io.IOException;
import javax.imageio.ImageReader;
import javax.imageio.IIOException;
public class JPEGImageReaderSpi extends ImageReaderSpi {
private static String [] writerSpiNames =
{"com.sun.imageio.plugins.jpeg.JPEGImageWriterSpi"};
public JPEGImageReaderSpi() {
super(JPEG.vendor,
JPEG.version,
JPEG.names,
JPEG.suffixes,
JPEG.MIMETypes,
"com.sun.imageio.plugins.jpeg.JPEGImageReader",
new Class[] { ImageInputStream.class },
writerSpiNames,
true,
JPEG.nativeStreamMetadataFormatName,
JPEG.nativeStreamMetadataFormatClassName,
null, null,
true,
JPEG.nativeImageMetadataFormatName,
JPEG.nativeImageMetadataFormatClassName,
null, null
);
}
public String getDescription(Locale locale) {
return "Standard JPEG Image Reader";
}
public boolean canDecodeInput(Object source) throws IOException {
if (!(source instanceof ImageInputStream)) {
return false;
}
ImageInputStream iis = (ImageInputStream) source;
iis.mark();
// If the first two bytes are a JPEG SOI marker, it's probably
// a JPEG file. If they aren't, it definitely isn't a JPEG file.
int byte1 = iis.read();
/**代码未完, 请加载全部代码(NowJava.com).**/