[Bug 678531] asfdemux: scan files saved from broadcast to report duration and support seeking

[GStreamer (bugzilla.gnome.org)]

https://bugzilla.gnome.org/show_bug.cgi?id=678531
  GStreamer | gst-plugins-ugly | unspecified

Tim-Philipp Müller <t.i.m> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|UNCONFIRMED                 |NEW
            Summary|ASF file reported as        |asfdemux: scan files saved
                   |unseekable                  |from broadcast to report
                   |                            |duration and support
                   |                            |seeking
     Ever Confirmed|0                           |1
           Severity|normal                      |enhancement

--- Comment #2 from Tim-Philipp Müller <t.i.m at zen.co.uk> 2013-03-17 12:32:16 UTC ---
That's because it's captured from a broadcast, and the header says it's
unseekable too, and of course there's no index either.

We need to calculate the number of packets based on the file size, and then
scan to the end to figure out the duration based on the timestamps in the last
packets. And then we can hopefully do some basic seeking based on that (or even
better, implement seeking by doing a bisect/scan, but first things first).

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