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From "Alexander Chow (Created) (JIRA)" <j...@apache.org>
Subject [jira] [Created] (TIKA-851) M4V magic detection invalid
Date Fri, 27 Jan 2012 13:11:39 GMT
M4V magic detection invalid

                 Key: TIKA-851
                 URL: https://issues.apache.org/jira/browse/TIKA-851
             Project: Tika
          Issue Type: Bug
          Components: mime
    Affects Versions: 1.0
            Reporter: Alexander Chow

When the mime type of an M4V file is detected using its name only, it returns video/x-m4v.
 When it is detected using the InputStream (hence utilising the MagicDetector), it incorrectly
returns video/quicktime.

Using the sample M4V file from Apple's [knowledge base|http://support.apple.com/kb/HT1425]:

public class TikaTest {

	public static void main(String[] args) throws Exception {
		String userHome = System.getProperty("user.home");

		File file = new File(userHome + "/Desktop/sample_iPod.m4v");

		InputStream is = TikaInputStream.get(file);

		Detector detector = new DefaultDetector(

		Metadata metadata = new Metadata();

		metadata.set(Metadata.RESOURCE_NAME_KEY, file.getName());

		System.out.println("File + filename: " + detector.detect(is, metadata));

		System.out.println("File only:       " + detector.detect(is, new Metadata()));

		System.out.println("Filename only:   " + detector.detect(null, metadata));


Renders the output:
File + filename: video/quicktime
File only:       video/quicktime
Filename only:   video/x-m4v

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