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/contrib/metadata-extractor/trunk/src/com/drew/metadata/jpeg/test/JpegDescriptorTest.java
0,0 → 1,82
/*
* This is public domain software - that is, you can do whatever you want
* with it, and include it software that is licensed under the GNU or the
* BSD license, or whatever other licence you choose, including proprietary
* closed source licenses. I do ask that you leave this header in tact.
*
* If you make modifications to this code that you think would benefit the
* wider community, please send me a copy and I'll post it on my site.
*
* If you make use of this code, I'd appreciate hearing about it.
* drew@drewnoakes.com
* Latest version of this software kept at
* http://drewnoakes.com/
*
* Created by dnoakes 09-Oct-2003 15:22:23 using IntelliJ IDEA.
*/
package com.drew.metadata.jpeg.test;
 
import com.drew.metadata.MetadataException;
import com.drew.metadata.jpeg.JpegComponent;
import com.drew.metadata.jpeg.JpegDescriptor;
import com.drew.metadata.jpeg.JpegDirectory;
import junit.framework.TestCase;
 
/**
*
*/
public class JpegDescriptorTest extends TestCase
{
private JpegDirectory _directory;
private JpegDescriptor _descriptor;
 
public JpegDescriptorTest(String s)
{
super(s);
}
 
public void setUp() throws Exception
{
_directory = new JpegDirectory();
_descriptor = new JpegDescriptor(_directory);
}
 
public void testGetComponentDataDescription_InvalidComponentNumber() throws Exception
{
try {
_descriptor.getComponentDataDescription(1);
fail("Excepted exception");
} catch (MetadataException e) {
// expect exception
}
}
 
public void testGetImageWidthDescription() throws Exception
{
_directory.setInt(JpegDirectory.TAG_JPEG_IMAGE_WIDTH, 123);
assertEquals("123 pixels", _descriptor.getImageWidthDescription());
assertEquals("123 pixels", _directory.getDescription(JpegDirectory.TAG_JPEG_IMAGE_WIDTH));
}
 
public void testGetImageHeightDescription() throws Exception
{
_directory.setInt(JpegDirectory.TAG_JPEG_IMAGE_HEIGHT, 123);
assertEquals("123 pixels", _descriptor.getImageHeightDescription());
assertEquals("123 pixels", _directory.getDescription(JpegDirectory.TAG_JPEG_IMAGE_HEIGHT));
}
 
public void testGetDataPrecisionDescription() throws Exception
{
_directory.setInt(JpegDirectory.TAG_JPEG_DATA_PRECISION, 8);
assertEquals("8 bits", _descriptor.getDataPrecisionDescription());
assertEquals("8 bits", _directory.getDescription(JpegDirectory.TAG_JPEG_DATA_PRECISION));
}
 
public void testGetComponentDescription() throws MetadataException
{
JpegComponent component1 = new JpegComponent(1, 0x22, 0);
_directory.setObject(JpegDirectory.TAG_JPEG_COMPONENT_DATA_1, component1);
assertEquals("Y component: Quantization table 0, Sampling factors 2 horiz/2 vert", _directory.getDescription(JpegDirectory.TAG_JPEG_COMPONENT_DATA_1));
assertEquals("Y component: Quantization table 0, Sampling factors 2 horiz/2 vert", _descriptor.getComponentDataDescription(0));
}
}
/contrib/metadata-extractor/trunk/src/com/drew/metadata/jpeg/test/JpegComponentTest.java
0,0 → 1,51
/*
* This is public domain software - that is, you can do whatever you want
* with it, and include it software that is licensed under the GNU or the
* BSD license, or whatever other licence you choose, including proprietary
* closed source licenses. I do ask that you leave this header in tact.
*
* If you make modifications to this code that you think would benefit the
* wider community, please send me a copy and I'll post it on my site.
*
* If you make use of this code, I'd appreciate hearing about it.
* drew@drewnoakes.com
* Latest version of this software kept at
* http://drewnoakes.com/
*
* Created by dnoakes on 09-Oct-2003 15:22:23 using IntelliJ IDEA.
*/
package com.drew.metadata.jpeg.test;
 
import com.drew.metadata.jpeg.JpegComponent;
import junit.framework.TestCase;
 
/**
*
*/
public class JpegComponentTest extends TestCase
{
public JpegComponentTest(String s)
{
super(s);
}
 
public void testGetComponentCharacter() throws Exception
{
JpegComponent component;
 
component = new JpegComponent(1,2,3);
assertEquals("Y", component.getComponentName());
 
component = new JpegComponent(2,2,3);
assertEquals("Cb", component.getComponentName());
 
component = new JpegComponent(3,2,3);
assertEquals("Cr", component.getComponentName());
 
component = new JpegComponent(4,2,3);
assertEquals("I", component.getComponentName());
 
component = new JpegComponent(5,2,3);
assertEquals("Q", component.getComponentName());
}
}
/contrib/metadata-extractor/trunk/src/com/drew/metadata/jpeg/test/JpegReaderTest.java
0,0 → 1,150
/*
* This is public domain software - that is, you can do whatever you want
* with it, and include it software that is licensed under the GNU or the
* BSD license, or whatever other licence you choose, including proprietary
* closed source licenses. I do ask that you leave this header in tact.
*
* If you make modifications to this code that you think would benefit the
* wider community, please send me a copy and I'll post it on my site.
*
* If you make use of this code, I'd appreciate hearing about it.
* drew@drewnoakes.com
* Latest version of this software kept at
* http://drewnoakes.com/
*
* Created by dnoakes on 09-Oct-2003 15:22:23 using IntelliJ IDEA.
*/
package com.drew.metadata.jpeg.test;
 
import com.drew.imaging.jpeg.JpegProcessingException;
import com.drew.metadata.Metadata;
import com.drew.metadata.jpeg.JpegComponent;
import com.drew.metadata.jpeg.JpegDirectory;
import com.drew.metadata.jpeg.JpegReader;
import junit.framework.TestCase;
 
import java.io.File;
import java.io.FileNotFoundException;
 
/**
*
*/
public class JpegReaderTest extends TestCase
{
private JpegDirectory _directory;
 
public JpegReaderTest(String s)
{
super(s);
}
 
public void setUp() throws JpegProcessingException, FileNotFoundException
{
// use a known testing image
File jpegFile = new File("src/com/drew/metadata/jpeg/test/simple.jpg");
JpegReader reader = new JpegReader(jpegFile);
Metadata metadata = reader.extract();
assertTrue(metadata.containsDirectory(JpegDirectory.class));
_directory = (JpegDirectory)metadata.getDirectory(JpegDirectory.class);
}
 
public void testExtract_Width() throws Exception
{
assertEquals(800, _directory.getInt(JpegDirectory.TAG_JPEG_IMAGE_WIDTH));
}
 
public void testExtract_Height() throws Exception
{
assertEquals(600, _directory.getInt(JpegDirectory.TAG_JPEG_IMAGE_HEIGHT));
}
 
public void testExtract_DataPrecision() throws Exception
{
assertEquals(8, _directory.getInt(JpegDirectory.TAG_JPEG_DATA_PRECISION));
}
 
public void testExtract_NumberOfComponents() throws Exception
{
assertEquals(3, _directory.getInt(JpegDirectory.TAG_JPEG_NUMBER_OF_COMPONENTS));
}
 
public void testComponentData1() throws Exception
{
JpegComponent component = (JpegComponent)_directory.getObject(JpegDirectory.TAG_JPEG_COMPONENT_DATA_1);
assertEquals("Y", component.getComponentName());
assertEquals(1, component.getComponentId());
assertEquals(0, component.getQuantizationTableNumber());
assertEquals(2, component.getHorizontalSamplingFactor());
assertEquals(2, component.getVerticalSamplingFactor());
}
 
public void testComponentData2() throws Exception
{
JpegComponent component = (JpegComponent)_directory.getObject(JpegDirectory.TAG_JPEG_COMPONENT_DATA_2);
assertEquals("Cb", component.getComponentName());
assertEquals(2, component.getComponentId());
assertEquals(1, component.getQuantizationTableNumber());
assertEquals(1, component.getHorizontalSamplingFactor());
assertEquals(1, component.getVerticalSamplingFactor());
assertEquals("Cb component: Quantization table 1, Sampling factors 1 horiz/1 vert", _directory.getDescription(JpegDirectory.TAG_JPEG_COMPONENT_DATA_2));
}
 
public void testComponentData3() throws Exception
{
JpegComponent component = (JpegComponent)_directory.getObject(JpegDirectory.TAG_JPEG_COMPONENT_DATA_3);
assertEquals("Cr", component.getComponentName());
assertEquals(3, component.getComponentId());
assertEquals(1, component.getQuantizationTableNumber());
assertEquals(1, component.getHorizontalSamplingFactor());
assertEquals(1, component.getVerticalSamplingFactor());
assertEquals("Cr component: Quantization table 1, Sampling factors 1 horiz/1 vert", _directory.getDescription(JpegDirectory.TAG_JPEG_COMPONENT_DATA_3));
}
 
/*
// this test is part of an incomplete investigation into extracting audio from JPG files
public void testJpegWithAudio() throws Exception
{
// use a known testing image
File jpegFile = new File("src/com/drew/metadata/jpeg/test/audioPresent.jpg");
 
JpegSegmentReader jpegSegmentReader = new JpegSegmentReader(jpegFile);
byte[] segment1Bytes = jpegSegmentReader.readSegment(JpegSegmentReader.SEGMENT_APP2);
System.out.println(segment1Bytes.length);
 
// System.out.println(jpegSegmentReader.readSegment(JpegSegmentReader.SEGMENT_APP1));
System.out.println(jpegSegmentReader.readSegment(JpegSegmentReader.SEGMENT_APP2).length);
// System.out.println(jpegSegmentReader.readSegment(JpegSegmentReader.SEGMENT_APP3));
// System.out.println(jpegSegmentReader.readSegment(JpegSegmentReader.SEGMENT_APP4));
// System.out.println(jpegSegmentReader.readSegment(JpegSegmentReader.SEGMENT_APP5));
// System.out.println(jpegSegmentReader.readSegment(JpegSegmentReader.SEGMENT_APP6));
// System.out.println(jpegSegmentReader.readSegment(JpegSegmentReader.SEGMENT_APP7));
// System.out.println(jpegSegmentReader.readSegment(JpegSegmentReader.SEGMENT_APP8));
// System.out.println(jpegSegmentReader.readSegment(JpegSegmentReader.SEGMENT_APP9));
// System.out.println(jpegSegmentReader.readSegment(JpegSegmentReader.SEGMENT_APPA));
// System.out.println(jpegSegmentReader.readSegment(JpegSegmentReader.SEGMENT_APPB));
// System.out.println(jpegSegmentReader.readSegment(JpegSegmentReader.SEGMENT_APPC));
// System.out.println(jpegSegmentReader.readSegment(JpegSegmentReader.SEGMENT_APPD));
// System.out.println(jpegSegmentReader.readSegment(JpegSegmentReader.SEGMENT_APPE));
// System.out.println(jpegSegmentReader.readSegment(JpegSegmentReader.SEGMENT_APPF));
// System.out.println(jpegSegmentReader.readSegment(JpegSegmentReader.SEGMENT_COM));
System.out.println(jpegSegmentReader.readSegment(JpegSegmentReader.SEGMENT_DHT).length);
System.out.println(jpegSegmentReader.readSegment(JpegSegmentReader.SEGMENT_DQT).length);
System.out.println(jpegSegmentReader.readSegment(JpegSegmentReader.SEGMENT_SOF0).length);
// System.out.println(jpegSegmentReader.readSegment(JpegSegmentReader.SEGMENT_SOI));
 
// write the segment's data out to a wav file...
File audioFile = new File("src/com/drew/metadata/jpeg/test/audio.wav");
FileOutputStream os = null;
try
{
os = new FileOutputStream(audioFile);
os.write(segment1Bytes);
}
finally
{
if (os!=null)
os.close();
}
}
*/
}
/contrib/metadata-extractor/trunk/src/com/drew/metadata/jpeg/test/simple.jpg
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/contrib/metadata-extractor/trunk/src/com/drew/metadata/jpeg/test/JpegDirectoryTest.java
0,0 → 1,91
/*
* This is public domain software - that is, you can do whatever you want
* with it, and include it software that is licensed under the GNU or the
* BSD license, or whatever other licence you choose, including proprietary
* closed source licenses. I do ask that you leave this header in tact.
*
* If you make modifications to this code that you think would benefit the
* wider community, please send me a copy and I'll post it on my site.
*
* If you make use of this code, I'd appreciate hearing about it.
* drew@drewnoakes.com
* Latest version of this software kept at
* http://drewnoakes.com/
*
* Created by dnoakes on 09-Oct-2003 15:22:23 using IntelliJ IDEA.
*/
package com.drew.metadata.jpeg.test;
 
import com.drew.metadata.jpeg.JpegComponent;
import com.drew.metadata.jpeg.JpegDirectory;
import junit.framework.TestCase;
 
/**
*
*/
public class JpegDirectoryTest extends TestCase
{
private JpegDirectory _directory;
 
public JpegDirectoryTest(String s)
{
super(s);
}
 
public void setUp()
{
_directory = new JpegDirectory();
}
 
public void testSetAndGetValue() throws Exception
{
_directory.setInt(123, 8);
assertEquals(8, _directory.getInt(123));
}
 
public void testGetComponent_NotAdded()
{
assertNull(_directory.getComponent(1));
}
 
// NOTE tests for individual tag values exist in JpegReaderTest.java
 
public void testGetImageWidth() throws Exception
{
_directory.setInt(JpegDirectory.TAG_JPEG_IMAGE_WIDTH, 123);
assertEquals(123, _directory.getImageWidth());
}
 
public void testGetImageHeight() throws Exception
{
_directory.setInt(JpegDirectory.TAG_JPEG_IMAGE_HEIGHT, 123);
assertEquals(123, _directory.getImageHeight());
}
 
 
public void testGetNumberOfComponents() throws Exception
{
_directory.setInt(JpegDirectory.TAG_JPEG_NUMBER_OF_COMPONENTS, 3);
assertEquals(3, _directory.getNumberOfComponents());
assertEquals("3", _directory.getDescription(JpegDirectory.TAG_JPEG_NUMBER_OF_COMPONENTS));
}
 
public void testGetComponent() throws Exception
{
JpegComponent component1 = new JpegComponent(1, 2, 3);
JpegComponent component2 = new JpegComponent(1, 2, 3);
JpegComponent component3 = new JpegComponent(1, 2, 3);
JpegComponent component4 = new JpegComponent(1, 2, 3);
 
_directory.setObject(JpegDirectory.TAG_JPEG_COMPONENT_DATA_1, component1);
_directory.setObject(JpegDirectory.TAG_JPEG_COMPONENT_DATA_2, component2);
_directory.setObject(JpegDirectory.TAG_JPEG_COMPONENT_DATA_3, component3);
_directory.setObject(JpegDirectory.TAG_JPEG_COMPONENT_DATA_4, component4);
 
// component numbers are zero-indexed for this method
assertSame(component1, _directory.getComponent(0));
assertSame(component2, _directory.getComponent(1));
assertSame(component3, _directory.getComponent(2));
assertSame(component4, _directory.getComponent(3));
}
}