summaryrefslogtreecommitdiffstats
path: root/tests/src/com/android/gallery3d/exif/ExifOutputStreamTest.java
blob: 1286c58012a3a0355d11f7e6d34c7db5223f95ea (plain)
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
185
186
187
188
189
190
191
192
193
194
/*
 * 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.graphics.Bitmap;
import android.graphics.BitmapFactory;
import android.util.Log;

import java.io.ByteArrayInputStream;
import java.io.File;
import java.io.FileInputStream;
import java.io.FileOutputStream;
import java.io.InputStream;
import java.io.OutputStream;

public class ExifOutputStreamTest extends ExifXmlDataTestCase {

    private File mTmpFile;

    private ExifInterface mInterface;

    @Override
    public void setUp() throws Exception {
        super.setUp();
        mTmpFile = File.createTempFile("exif_test", ".jpg");
    }

    public ExifOutputStreamTest(int imgRes, int xmlRes) {
        super(imgRes, xmlRes);
        mInterface = new ExifInterface();
    }

    public ExifOutputStreamTest(String imgPath, String xmlPath) {
        super(imgPath, xmlPath);
        mInterface = new ExifInterface();
    }

    public void testExifOutputStream() throws Exception {
        InputStream imageInputStream = null;
        InputStream exifInputStream = null;
        FileInputStream reDecodeInputStream = null;
        FileInputStream reParseInputStream = null;

        InputStream dangerInputStream = null;
        OutputStream dangerOutputStream = null;
        try {
            try {
                byte[] imgData = Util.readToByteArray(getImageInputStream());
                imageInputStream = new ByteArrayInputStream(imgData);
                exifInputStream = new ByteArrayInputStream(imgData);

                // Read the image data
                Bitmap bmp = BitmapFactory.decodeStream(imageInputStream);
                // The image is invalid
                if (bmp == null) {
                    return;
                }

                // Read exif data
                ExifData exifData = new ExifReader(mInterface).read(exifInputStream);

                // Encode the image with the exif data
                FileOutputStream outputStream = new FileOutputStream(mTmpFile);
                ExifOutputStream exifOutputStream = new ExifOutputStream(outputStream, mInterface);
                exifOutputStream.setExifData(exifData);
                bmp.compress(Bitmap.CompressFormat.JPEG, 90, exifOutputStream);
                exifOutputStream.close();
                exifOutputStream = null;

                // Re-decode the temp file and check the data.
                reDecodeInputStream = new FileInputStream(mTmpFile);
                Bitmap decodedBmp = BitmapFactory.decodeStream(reDecodeInputStream);
                assertNotNull(getImageTitle(), decodedBmp);
                reDecodeInputStream.close();

                // Re-parse the temp file the check EXIF tag
                reParseInputStream = new FileInputStream(mTmpFile);
                ExifData reExifData = new ExifReader(mInterface).read(reParseInputStream);
                assertEquals(getImageTitle(), exifData, reExifData);
                reParseInputStream.close();

                // Try writing exif to file with existing exif.
                dangerOutputStream = (OutputStream) new FileOutputStream(mTmpFile);
                exifOutputStream = new ExifOutputStream(dangerOutputStream, mInterface);
                exifOutputStream.setExifData(exifData);
                exifOutputStream.write(imgData);
                // exifOutputStream.write(strippedImgData);
                exifOutputStream.close();
                exifOutputStream = null;

                // Make sure it still can be parsed into a bitmap.
                dangerInputStream = (InputStream) new FileInputStream(mTmpFile);
                decodedBmp = null;
                decodedBmp = BitmapFactory.decodeStream(dangerInputStream);
                assertNotNull(getImageTitle(), decodedBmp);
                dangerInputStream.close();
                dangerInputStream = null;

                // Make sure exif is still well-formatted.
                dangerInputStream = (InputStream) new FileInputStream(mTmpFile);
                reExifData = null;
                reExifData = new ExifReader(mInterface).read(dangerInputStream);
                assertEquals(getImageTitle(), exifData, reExifData);
                dangerInputStream.close();
                dangerInputStream = null;

            } finally {
                Util.closeSilently(imageInputStream);
                Util.closeSilently(exifInputStream);
                Util.closeSilently(reDecodeInputStream);
                Util.closeSilently(reParseInputStream);

                Util.closeSilently(dangerInputStream);
                Util.closeSilently(dangerOutputStream);
            }
        } catch (Exception e) {
            throw new Exception(getImageTitle(), e);
        }
    }

    public void testOutputSpeed() throws Exception {
        final String LOGTAG = "testOutputSpeed";
        InputStream imageInputStream = null;
        OutputStream imageOutputStream = null;
        try {
            try {
                imageInputStream = getImageInputStream();
                // Read the image data
                Bitmap bmp = BitmapFactory.decodeStream(imageInputStream);
                // The image is invalid
                if (bmp == null) {
                    return;
                }
                imageInputStream.close();
                int nLoops = 20;
                long totalReadDuration = 0;
                long totalWriteDuration = 0;
                for (int i = 0; i < nLoops; i++) {
                    imageInputStream = reopenFileStream();
                    // Read exif data
                    long startTime = System.nanoTime();
                    ExifData exifData = new ExifReader(mInterface).read(imageInputStream);
                    long endTime = System.nanoTime();
                    long duration = endTime - startTime;
                    totalReadDuration += duration;
                    Log.v(LOGTAG, " read time: " + duration);
                    imageInputStream.close();

                    // Encode the image with the exif data
                    imageOutputStream = (OutputStream) new FileOutputStream(mTmpFile);
                    ExifOutputStream exifOutputStream = new ExifOutputStream(imageOutputStream,
                            mInterface);
                    exifOutputStream.setExifData(exifData);
                    startTime = System.nanoTime();
                    bmp.compress(Bitmap.CompressFormat.JPEG, 90, exifOutputStream);
                    endTime = System.nanoTime();
                    duration = endTime - startTime;
                    totalWriteDuration += duration;
                    Log.v(LOGTAG, " write time: " + duration);
                    exifOutputStream.close();
                }
                Log.v(LOGTAG, "======================= normal");
                Log.v(LOGTAG, "avg read time: " + totalReadDuration / nLoops);
                Log.v(LOGTAG, "avg write time: " + totalWriteDuration / nLoops);
                Log.v(LOGTAG, "=======================");
            } finally {
                Util.closeSilently(imageInputStream);
                Util.closeSilently(imageOutputStream);
            }
        } catch (Exception e) {
            throw new Exception(getImageTitle(), e);
        }
    }

    @Override
    public void tearDown() throws Exception {
        super.tearDown();
        mTmpFile.delete();
    }
}