[Bug 726144] gst_element_query_duration returns false while pipeline paused, even if MP3 has duration tag

[GStreamer (bugzilla.gnome.org)]

https://bugzilla.gnome.org/show_bug.cgi?id=726144
  GStreamer | don't know | 1.2.3

--- Comment #3 from W. Michael Petullo <mike at flyn.org> 2014-03-12 15:33:07 UTC ---
I do not want to turn this bug report into a support request, but perhaps it
could be an RFE. Is there a way to identify whether an MP3 stream is VBR while
in the paused state? If this is the case, could the audio parser provide a
duration before playing, and only require a few frames in the case of VBR? What
does Ogg/Vorbis do? (I get a duration while paused from this format.)

My problem is that I want to catalog a large number of media files, so I want
to assess their duration as quickly as possible (while maintaining a reasonable
accuracy). I am not actually playing the files at this point, and I only do so
(for some short period of time) when required to assess the duration.

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