Java tutorial
/** * Copyright 2009, 2010 The Regents of the University of California * Licensed under the Educational Community 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.osedu.org/licenses/ECL-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 org.opencastproject.metadata.mpeg7; import static org.junit.Assert.assertEquals; import static org.junit.Assert.assertFalse; import static org.junit.Assert.assertNotNull; import static org.junit.Assert.assertTrue; import org.opencastproject.util.FileSupport; import de.schlichtherle.io.FileOutputStream; import org.apache.commons.io.FileUtils; import org.apache.commons.io.IOUtils; import org.junit.After; import org.junit.Before; import org.junit.Test; import java.awt.Rectangle; import java.io.File; import java.io.InputStream; import java.net.URI; /** * Test class for the Mpeg-7 catalog implementation. */ public class Mpeg7Test { /** The catalog name */ private String catalogName = "/mpeg7.xml"; /** The test catalog */ private File catalogFile = null; /** Temp file for mpeg7 catalog contents */ private File mpeg7TempFile = null; /** * @throws java.lang.Exception */ @Before public void setUp() throws Exception { catalogFile = new File(this.getClass().getResource(catalogName).toURI()); if (!catalogFile.exists() || !catalogFile.canRead()) throw new Exception("Unable to access mpeg-7 test catalog '" + catalogName + "'"); } /** * @throws java.io.File.IOException */ @After public void tearDown() throws Exception { FileUtils.deleteQuietly(mpeg7TempFile); } /** * Test method for {@link org.opencastproject.mediapackage.mpeg7.Mpeg7CatalogImpl#fromFile(java.io.File)} . */ @Test public void testFromFile() throws Exception { Mpeg7Catalog mpeg7 = new Mpeg7CatalogImpl(catalogFile.toURI().toURL().openStream()); testContent(mpeg7); } /** * Test method for {@link org.opencastproject.mediapackage.mpeg7.Mpeg7CatalogImpl#save()}. */ @Test public void testNewInstance() throws Exception { // Read the sample catalog Mpeg7Catalog mpeg7Sample = new Mpeg7CatalogImpl(catalogFile.toURI().toURL().openStream()); // Create a new catalog and fill it with a few fields mpeg7TempFile = new File(FileSupport.getTempDirectory(), Long.toString(System.currentTimeMillis())); // TODO: Add sample tracks to new catalog // TODO: Add sample video segments to new catalog // TODO: Add sample annotations to new catalog // Store the mpeg7 catalog contents in the temp file Mpeg7CatalogService mpeg7Service = new Mpeg7CatalogService(); InputStream in = mpeg7Service.serialize(mpeg7Sample); FileOutputStream out = new FileOutputStream(mpeg7TempFile); IOUtils.copy(in, out); // Re-read the saved catalog and test for its content Mpeg7Catalog mpeg7NewFromDisk = new Mpeg7CatalogImpl(mpeg7TempFile.toURI().toURL().openStream()); // TODO: Test content testContent(mpeg7NewFromDisk); } /** * Tests the contents of the sample catalog mpeg7.xml. */ @SuppressWarnings("unchecked") protected void testContent(Mpeg7Catalog mpeg7) { // Check presence of content assertTrue(mpeg7.hasAudioContent()); assertTrue(mpeg7.hasVideoContent()); assertFalse(mpeg7.hasAudioVisualContent()); // Check content size assertTrue(mpeg7.getMultimediaContent(MultimediaContent.Type.AudioType).size() == 1); assertTrue(mpeg7.getMultimediaContent(MultimediaContent.Type.VideoType).size() == 2); // Check tracks assertNotNull(mpeg7.getAudioById("track-1")); assertNotNull(mpeg7.getVideoById("track-2")); assertNotNull(mpeg7.getVideoById("track-3")); // // Check audio track (track-1) // MultimediaContentType track1 = mpeg7.getAudioById("track-1"); MediaTime audioMediaTime = track1.getMediaTime(); // Media locator assertEquals(track1.getMediaLocator().getMediaURI(), URI.create("file:tracks/audio.pcm")); // Media time point assertEquals(0, audioMediaTime.getMediaTimePoint().getDay()); assertEquals(0, audioMediaTime.getMediaTimePoint().getHour()); assertEquals(0, audioMediaTime.getMediaTimePoint().getMinutes()); assertEquals(0, audioMediaTime.getMediaTimePoint().getSeconds()); assertEquals(25, audioMediaTime.getMediaTimePoint().getFractionsPerSecond()); assertEquals(0, audioMediaTime.getMediaTimePoint().getNFractions()); // Media duration assertEquals(0, audioMediaTime.getMediaDuration().getDays()); assertEquals(1, audioMediaTime.getMediaDuration().getHours()); assertEquals(30, audioMediaTime.getMediaDuration().getMinutes()); assertEquals(0, audioMediaTime.getMediaDuration().getSeconds()); // Segments assertFalse(track1.getTemporalDecomposition().segments().hasNext()); // // Check video track (track-2) // MultimediaContentType track2 = mpeg7.getVideoById("track-2"); MediaTime v1MediaTime = track2.getMediaTime(); // Media locator assertEquals(track2.getMediaLocator().getMediaURI(), URI.create("file:tracks/presentation.mp4")); // Media time point assertEquals(0, v1MediaTime.getMediaTimePoint().getDay()); assertEquals(0, v1MediaTime.getMediaTimePoint().getHour()); assertEquals(0, v1MediaTime.getMediaTimePoint().getMinutes()); assertEquals(0, v1MediaTime.getMediaTimePoint().getSeconds()); assertEquals(25, v1MediaTime.getMediaTimePoint().getFractionsPerSecond()); assertEquals(0, v1MediaTime.getMediaTimePoint().getNFractions()); // Media duration assertEquals(0, v1MediaTime.getMediaDuration().getDays()); assertEquals(1, v1MediaTime.getMediaDuration().getHours()); assertEquals(30, v1MediaTime.getMediaDuration().getMinutes()); assertEquals(0, v1MediaTime.getMediaDuration().getSeconds()); // Segments TemporalDecomposition<VideoSegment> v1Decomposition = (TemporalDecomposition<VideoSegment>) track2 .getTemporalDecomposition(); assertFalse(v1Decomposition.hasGap()); assertFalse(v1Decomposition.isOverlapping()); assertEquals(v1Decomposition.getCriteria(), TemporalDecomposition.DecompositionCriteria.Temporal); assertTrue(v1Decomposition.segments().hasNext()); // Segment track-2.segment-1 VideoSegment v1Segment1 = v1Decomposition.getSegmentById("track-2.segment-1"); assertNotNull(v1Segment1); MediaTime segment1MediaTime = v1Segment1.getMediaTime(); // Media time point assertEquals(0, segment1MediaTime.getMediaTimePoint().getDay()); assertEquals(0, segment1MediaTime.getMediaTimePoint().getHour()); assertEquals(0, segment1MediaTime.getMediaTimePoint().getMinutes()); assertEquals(0, segment1MediaTime.getMediaTimePoint().getSeconds()); assertEquals(25, segment1MediaTime.getMediaTimePoint().getFractionsPerSecond()); assertEquals(0, segment1MediaTime.getMediaTimePoint().getNFractions()); // Media duration assertEquals(0, segment1MediaTime.getMediaDuration().getDays()); assertEquals(1, segment1MediaTime.getMediaDuration().getHours()); assertEquals(7, segment1MediaTime.getMediaDuration().getMinutes()); assertEquals(35, segment1MediaTime.getMediaDuration().getSeconds()); // Text annotations assertTrue(v1Segment1.hasTextAnnotations()); assertTrue(v1Segment1.hasTextAnnotations(0.4f, 0.5f)); assertFalse(v1Segment1.hasTextAnnotations(0.8f, 0.8f)); assertTrue(v1Segment1.hasTextAnnotations("de")); assertFalse(v1Segment1.hasTextAnnotations("fr")); // Keywords TextAnnotation textAnnotation = v1Segment1.textAnnotations().next(); assertEquals("Armin", textAnnotation.keywordAnnotations().next().getKeyword()); assertEquals("Hint Armin", textAnnotation.freeTextAnnotations().next().getText()); // Spaciotemporal decomposition SpatioTemporalDecomposition stdecomposition = v1Segment1.getSpatioTemporalDecomposition(); assertNotNull(stdecomposition); assertTrue(stdecomposition.hasGap()); assertFalse(stdecomposition.isOverlapping()); // VideoText assertEquals(1, stdecomposition.getVideoText().length); VideoText videoText = stdecomposition.getVideoText("text1"); assertNotNull(videoText); SpatioTemporalLocator locator = videoText.getSpatioTemporalLocator(); assertNotNull(locator); MediaTime locatorMediaTime = locator.getMediaTime(); assertNotNull(locatorMediaTime); assertEquals(MediaRelTimePointImpl.parseTimePoint("T00:00:00:0F25"), locatorMediaTime.getMediaTimePoint()); assertEquals(MediaDurationImpl.parseDuration("PT01H07M35S"), locatorMediaTime.getMediaDuration()); Textual textual = videoText.getText(); assertNotNull(textual); assertEquals("Text", textual.getText()); assertEquals("en", textual.getLanguage()); Rectangle boundingBox = videoText.getBoundary(); assertNotNull(boundingBox); assertEquals(10, (int) boundingBox.getX()); assertEquals(150, (int) boundingBox.getWidth()); assertEquals(20, (int) boundingBox.getY()); assertEquals(15, (int) boundingBox.getHeight()); // // Check video track (track-3) // MultimediaContentType track3 = mpeg7.getVideoById("track-3"); MediaTime v2MediaTime = track3.getMediaTime(); // Media locator assertEquals(track3.getMediaLocator().getMediaURI(), URI.create("file:tracks/presenter.mpg")); // Media time point assertEquals(0, v2MediaTime.getMediaTimePoint().getDay()); assertEquals(0, v2MediaTime.getMediaTimePoint().getHour()); assertEquals(0, v2MediaTime.getMediaTimePoint().getMinutes()); assertEquals(0, v2MediaTime.getMediaTimePoint().getSeconds()); assertEquals(25, v2MediaTime.getMediaTimePoint().getFractionsPerSecond()); assertEquals(0, v2MediaTime.getMediaTimePoint().getNFractions()); // Media duration assertEquals(0, v2MediaTime.getMediaDuration().getDays()); assertEquals(1, v2MediaTime.getMediaDuration().getHours()); assertEquals(30, v2MediaTime.getMediaDuration().getMinutes()); assertEquals(0, v2MediaTime.getMediaDuration().getSeconds()); // Segments TemporalDecomposition<VideoSegment> v2Decomposition = (TemporalDecomposition<VideoSegment>) track3 .getTemporalDecomposition(); assertFalse(v2Decomposition.segments().hasNext()); } }