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From "Oliver Heger (JIRA)" <j...@apache.org>
Subject [jira] [Created] (TIKA-991) Mp3Parser cannot extract the duration of an audio file
Date Mon, 03 Sep 2012 20:33:07 GMT
Oliver Heger created TIKA-991:
---------------------------------

             Summary: Mp3Parser cannot extract the duration of an audio file
                 Key: TIKA-991
                 URL: https://issues.apache.org/jira/browse/TIKA-991
             Project: Tika
          Issue Type: Improvement
          Components: parser
    Affects Versions: 1.2
            Reporter: Oliver Heger


The duration of an MP3 file is an important information. Currently, {{Mp3Parser}} is not able
to extract this data from a file.

Unfortunately, it is not easy to implement this functionality with the current design of the
{{Mp3Parser}} class. In order to obtain the duration, all audio frames have to be read, and
their durations have to be summed up. Currently, only the beginning (the ID3v2 tags) and the
end (lyrics and ID3v1) are evaluated. Processing the whole file would have additional benefits,
e.g. MP3s with variable bit rates could be detected.

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