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 }