1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
|
/*
* Copyright (C) 2012 The Android Open Source Project
*
* Licensed 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 com.android.gallery3d.exif;
import android.test.suitebuilder.annotation.MediumTest;
import java.io.File;
import java.io.FileInputStream;
import java.io.FileOutputStream;
import java.io.InputStream;
import java.io.RandomAccessFile;
import java.nio.MappedByteBuffer;
import java.nio.channels.FileChannel.MapMode;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
public class ExifModifierTest extends ExifXmlDataTestCase {
private File mTmpFile;
private List<Map<Short, List<String>>> mGroundTruth;
private ExifInterface mInterface;
private Map<Short, ExifTag> mTestTags;
ExifTag mVersionTag;
ExifTag mGpsVersionTag;
ExifTag mModelTag;
ExifTag mDateTimeTag;
ExifTag mCompressionTag;
ExifTag mThumbnailFormatTag;
ExifTag mLongitudeTag;
ExifTag mShutterTag;
@Override
public void setUp() throws Exception {
super.setUp();
mGroundTruth = ExifXmlReader.readXml(getXmlParser());
mTmpFile = File.createTempFile("exif_test", ".jpg");
FileOutputStream os = null;
InputStream is = getImageInputStream();
try {
os = new FileOutputStream(mTmpFile);
byte[] buf = new byte[1024];
int n;
while ((n = is.read(buf)) > 0) {
os.write(buf, 0, n);
}
} finally {
Util.closeSilently(os);
}
// TYPE_UNDEFINED with 4 components
mVersionTag = mInterface.buildTag(ExifInterface.TAG_EXIF_VERSION, new byte[] {
1, 2, 3, 4
});
// TYPE_UNSIGNED_BYTE with 4 components
mGpsVersionTag = mInterface.buildTag(ExifInterface.TAG_GPS_VERSION_ID, new byte[] {
4, 3, 2, 1
});
// TYPE ASCII with arbitary length
mModelTag = mInterface.buildTag(ExifInterface.TAG_MODEL, "end-of-the-world");
// TYPE_ASCII with 20 components
mDateTimeTag = mInterface.buildTag(ExifInterface.TAG_DATE_TIME, "2012:12:31 23:59:59");
// TYPE_UNSIGNED_SHORT with 1 components
mCompressionTag = mInterface.buildTag(ExifInterface.TAG_COMPRESSION, 100);
// TYPE_UNSIGNED_LONG with 1 components
mThumbnailFormatTag =
mInterface.buildTag(ExifInterface.TAG_JPEG_INTERCHANGE_FORMAT, 100);
// TYPE_UNSIGNED_RATIONAL with 3 components
mLongitudeTag = mInterface.buildTag(ExifInterface.TAG_GPS_LONGITUDE, new Rational[] {
new Rational(1, 1), new Rational(10, 10),
new Rational(100, 100)
});
// TYPE_RATIONAL with 1 components
mShutterTag = mInterface
.buildTag(ExifInterface.TAG_SHUTTER_SPEED_VALUE, new Rational(1, 1));
mTestTags = new HashMap<Short, ExifTag>();
mTestTags.put(mVersionTag.getTagId(), mVersionTag);
mTestTags.put(mGpsVersionTag.getTagId(), mGpsVersionTag);
mTestTags.put(mModelTag.getTagId(), mModelTag);
mTestTags.put(mDateTimeTag.getTagId(), mDateTimeTag);
mTestTags.put(mCompressionTag.getTagId(), mCompressionTag);
mTestTags.put(mThumbnailFormatTag.getTagId(), mThumbnailFormatTag);
mTestTags.put(mLongitudeTag.getTagId(), mLongitudeTag);
mTestTags.put(mShutterTag.getTagId(), mShutterTag);
}
public ExifModifierTest(int imageRes, int xmlRes) {
super(imageRes, xmlRes);
mInterface = new ExifInterface();
}
public ExifModifierTest(String imagePath, String xmlPath) {
super(imagePath, xmlPath);
mInterface = new ExifInterface();
}
@MediumTest
public void testModify() throws Exception {
Map<Short, Boolean> results = new HashMap<Short, Boolean>();
RandomAccessFile file = null;
try {
file = new RandomAccessFile(mTmpFile, "rw");
MappedByteBuffer buf = file.getChannel().map(MapMode.READ_WRITE, 0, file.length());
for (ExifTag tag : mTestTags.values()) {
ExifModifier modifier = new ExifModifier(buf, mInterface);
modifier.modifyTag(tag);
boolean result = modifier.commit();
results.put(tag.getTagId(), result);
buf.force();
buf.position(0);
if (!result) {
List<String> value = mGroundTruth.get(tag.getIfd()).get(tag.getTagId());
assertTrue(String.format("Tag %x, ", tag.getTagId()) + getImageTitle(),
value == null || tag.getTagId() == ExifInterface.TAG_MODEL);
}
}
} finally {
Util.closeSilently(file);
}
// Parse the new file and check the result
InputStream is = null;
try {
is = new FileInputStream(mTmpFile);
ExifData data = new ExifReader(mInterface).read(is);
for (int i = 0; i < IfdId.TYPE_IFD_COUNT; i++) {
checkIfd(data.getIfdData(i), mGroundTruth.get(i), results);
}
} finally {
Util.closeSilently(is);
}
}
private void checkIfd(IfdData ifd, Map<Short, List<String>> ifdValue,
Map<Short, Boolean> results) {
if (ifd == null) {
assertEquals(getImageTitle(), 0, ifdValue.size());
return;
}
ExifTag[] tags = ifd.getAllTags();
for (ExifTag tag : tags) {
List<String> truth = ifdValue.get(tag.getTagId());
assertNotNull(String.format("Tag %x, ", tag.getTagId()) + getImageTitle(), truth);
if (truth.contains(null)) {
continue;
}
ExifTag newTag = mTestTags.get(tag.getTagId());
if (newTag != null
&& results.get(tag.getTagId())) {
assertEquals(String.format("Tag %x, ", tag.getTagId()) + getImageTitle(),
Util.tagValueToString(newTag), Util.tagValueToString(tag));
} else {
assertTrue(String.format("Tag %x, ", tag.getTagId()) + getImageTitle(),
truth.contains(Util.tagValueToString(tag).trim()));
}
}
assertEquals(getImageTitle(), ifdValue.size(), tags.length);
}
@Override
public void tearDown() throws Exception {
super.tearDown();
mTmpFile.delete();
}
}
|
