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From "Chris A. Mattmann (JIRA)" <j...@apache.org>
Subject [jira] [Resolved] (TIKA-991) Mp3Parser cannot extract the duration of an audio file
Date Sun, 16 Jun 2013 19:15:20 GMT

     [ https://issues.apache.org/jira/browse/TIKA-991?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel

Chris A. Mattmann resolved TIKA-991.

       Resolution: Fixed
    Fix Version/s: 1.5

- updated patch committed to 1.5 trunk in r1493574. Thanks Oliver!
> 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
>            Assignee: Chris A. Mattmann
>              Labels: patch
>             Fix For: 1.5
>         Attachments: tika-991_2.patch, tika-991_3.patch
> 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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