001/* 002 * Licensed to the Apache Software Foundation (ASF) under one or more 003 * contributor license agreements. See the NOTICE file distributed with 004 * this work for additional information regarding copyright ownership. 005 * The ASF licenses this file to You under the Apache License, Version 2.0 006 * (the "License"); you may not use this file except in compliance with 007 * the License. You may obtain a copy of the License at 008 * 009 * http://www.apache.org/licenses/LICENSE-2.0 010 * 011 * Unless required by applicable law or agreed to in writing, software 012 * distributed under the License is distributed on an "AS IS" BASIS, 013 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 014 * See the License for the specific language governing permissions and 015 * limitations under the License. 016 */ 017package org.apache.commons.imaging.formats.jpeg.segments; 018 019import java.io.ByteArrayInputStream; 020import java.io.IOException; 021import java.io.InputStream; 022 023import org.apache.commons.imaging.ImagingException; 024import org.apache.commons.imaging.ImagingParameters; 025import org.apache.commons.imaging.formats.jpeg.JpegImagingParameters; 026import org.apache.commons.imaging.formats.jpeg.iptc.IptcParser; 027import org.apache.commons.imaging.formats.jpeg.iptc.PhotoshopApp13Data; 028 029public class App13Segment extends AppnSegment { 030 031 public App13Segment(final int marker, final byte[] segmentData) throws IOException { 032 this(marker, segmentData.length, new ByteArrayInputStream(segmentData)); 033 } 034 035 public App13Segment(final int marker, final int markerLength, final InputStream is) throws IOException { 036 super(marker, markerLength, is); 037 038 // isIPTCJpegSegment = new IptcParser().isIPTCJpegSegment(bytes); 039 // if (isIPTCJpegSegment) 040 // { 041 // /* 042 // * In practice, App13 segments are only used for Photoshop/IPTC 043 // * metadata. However, we should not treat App13 signatures without 044 // * Photoshop's signature as Photoshop/IPTC segments. 045 // */ 046 // boolean verbose = false; 047 // boolean strict = false; 048 // elements.addAll(new IptcParser().parseIPTCJPEGSegment(bytes, 049 // verbose, strict)); 050 // } 051 } 052 053 public boolean isPhotoshopJpegSegment() { 054 return new IptcParser().isPhotoshopJpegSegment(getSegmentData()); 055 } 056 057 public PhotoshopApp13Data parsePhotoshopSegment(final ImagingParameters<JpegImagingParameters> params) throws ImagingException, IOException { 058 /* 059 * In practice, App13 segments are only used for Photoshop/IPTC metadata. However, we should not treat App13 signatures without Photoshop's signature as 060 * Photoshop/IPTC segments. 061 */ 062 if (!isPhotoshopJpegSegment()) { 063 return null; 064 } 065 066 return new IptcParser().parsePhotoshopSegment(getSegmentData(), params); 067 } 068}