1 /* 2 * Licensed to the Apache Software Foundation (ASF) under one or more 3 * contributor license agreements. See the NOTICE file distributed with 4 * this work for additional information regarding copyright ownership. 5 * The ASF licenses this file to You under the Apache License, Version 2.0 6 * (the "License"); you may not use this file except in compliance with 7 * the License. You may obtain a copy of the License at 8 * 9 * http://www.apache.org/licenses/LICENSE-2.0 10 * 11 * Unless required by applicable law or agreed to in writing, software 12 * distributed under the License is distributed on an "AS IS" BASIS, 13 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 14 * See the License for the specific language governing permissions and 15 * limitations under the License. 16 */ 17 package org.apache.commons.imaging.formats.jpeg.segments; 18 19 import java.io.ByteArrayInputStream; 20 import java.io.IOException; 21 import java.io.InputStream; 22 23 import org.apache.commons.imaging.ImagingException; 24 import org.apache.commons.imaging.ImagingParameters; 25 import org.apache.commons.imaging.formats.jpeg.JpegImagingParameters; 26 import org.apache.commons.imaging.formats.jpeg.iptc.IptcParser; 27 import org.apache.commons.imaging.formats.jpeg.iptc.PhotoshopApp13Data; 28 29 public class App13Segment extends AppnSegment { 30 31 public App13Segment(final int marker, final byte[] segmentData) throws IOException { 32 this(marker, segmentData.length, new ByteArrayInputStream(segmentData)); 33 } 34 35 public App13Segment(final int marker, final int markerLength, final InputStream is) throws IOException { 36 super(marker, markerLength, is); 37 38 // isIPTCJpegSegment = new IptcParser().isIPTCJpegSegment(bytes); 39 // if (isIPTCJpegSegment) 40 // { 41 // /* 42 // * In practice, App13 segments are only used for Photoshop/IPTC 43 // * metadata. However, we should not treat App13 signatures without 44 // * Photoshop's signature as Photoshop/IPTC segments. 45 // */ 46 // boolean verbose = false; 47 // boolean strict = false; 48 // elements.addAll(new IptcParser().parseIPTCJPEGSegment(bytes, 49 // verbose, strict)); 50 // } 51 } 52 53 public boolean isPhotoshopJpegSegment() { 54 return new IptcParser().isPhotoshopJpegSegment(getSegmentData()); 55 } 56 57 public PhotoshopApp13Data parsePhotoshopSegment(final ImagingParameters<JpegImagingParameters> params) throws ImagingException, IOException { 58 /* 59 * In practice, App13 segments are only used for Photoshop/IPTC metadata. However, we should not treat App13 signatures without Photoshop's signature as 60 * Photoshop/IPTC segments. 61 */ 62 if (!isPhotoshopJpegSegment()) { 63 return null; 64 } 65 66 return new IptcParser().parsePhotoshopSegment(getSegmentData(), params); 67 } 68 }