org.apache.xmlgraphics.image.loader.impl.JPEGConstants Maven / Gradle / Ivy
/*
* 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.
*/
/* $Id: JPEGConstants.java 750418 2009-03-05 11:03:54Z vhennebert $ */
package org.apache.xmlgraphics.image.loader.impl;
/**
* Constants for JPEG images
*/
public interface JPEGConstants {
/*
* Only SOFn and APPn markers are defined as SOFn is needed for the height
* and width search. APPn is also defined because if the JPEG contains
* thumbnails the dimensions of the thumbnail would also be after the SOFn
* marker enclosed inside the APPn marker. And we don't want to confuse
* those dimensions with the image dimensions.
*/
/** Beginning of a Marker */
int MARK = 0xff;
/** Special case for 0xff00 */
int NULL = 0x00;
/** Baseline DCT */
int SOF0 = 0xc0;
/** Extended Sequential DCT */
int SOF1 = 0xc1;
/** Progressive DCT only PDF 1.3 */
int SOF2 = 0xc2;
/** Progressive DCT only PDF 1.3 */
int SOFA = 0xca;
/** Application marker, JFIF, JFXX, CIFF */
int APP0 = 0xe0;
/** Application marker, EXIF, XMP */
int APP1 = 0xe1;
/** Application marker, ICC, FlashPix */
int APP2 = 0xe2;
/** Application marker APPD/APP13, Photoshop, Adobe_CM */
int APPD = 0xed;
/** Application marker APPE/APP14, Adobe */
int APPE = 0xee;
/** Application marker APPF/APP15, GraphicConverter */
int APPF = 0xef;
/** Start of Scan */
int SOS = 0xda;
/** start of Image */
int SOI = 0xd8;
/** end of Image */
int EOI = 0xd9;
}