/*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership.
* The ASF licenses this file to You under the Apache License, Version 2.0
* (the "License"); you may not use this file except in compliance with
* the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.apache.sanselan.formats.jpeg.segments;
import java.io.ByteArrayInputStream;
import java.io.IOException;
import java.io.InputStream;
import org.apache.sanselan.ImageReadException;
import org.apache.sanselan.formats.jpeg.JpegImageParser;
public class SOFNSegment extends Segment
{
public final int width, height;
public final int numberOfComponents;
public final int precision;
public SOFNSegment(int marker, byte segmentData[])
throws ImageReadException, IOException
{
this(marker, segmentData.length, new ByteArrayInputStream(segmentData));
}
public SOFNSegment(int marker, int marker_length, InputStream is)
throws ImageReadException, IOException
{
super(marker, marker_length);
if (getDebug())
System.out.println("SOF0Segment marker_length: " + marker_length);
{
precision = readByte("Data_precision", is, "Not a Valid JPEG File");
height = read2Bytes("Image_height", is, "Not a Valid JPEG File");
width = read2Bytes("Image_Width", is, "Not a Valid JPEG File");
numberOfComponents = readByte("Number_of_components", is,
"Not a Valid JPEG File");
// ignore the rest of the segment for now...
skipBytes(is, marker_length - 6,
"Not a Valid JPEG File: SOF0 Segment");
// int Each_component1 = read_byte("Each_component1", is,
// "Not a Valid JPEG File");
// int Each_component2 = read_byte("Each_component2", is,
// "Not a Valid JPEG File");
// int Each_component3 = read_byte("Each_component3", is,
// "Not a Valid JPEG File");
}
if (getDebug())
System.out.println("");
}
public String getDescription()
{
return "SOFN (SOF" + (marker - JpegImageParser.SOF0Marker) + ") ("
+ getSegmentType() + ")";
}
}