[Bug 669305] flacenc ! matroskamux generates errors from non time segments

[GStreamer (bugzilla.gnome.org)]

https://bugzilla.gnome.org/show_bug.cgi?id=669305
  GStreamer | gst-plugins-good | git

--- Comment #5 from Vincent Penquerc'h <vincent.penquerch at collabora.co.uk> 2012-02-03 15:09:18 UTC ---
I think one could make quite a hack there:

We assume seeking will be used only for getting back near the start.
We keep a copy of the first kilobyte or so of what we write first.
When asked to seek in bytes at offset OFFS near the start, we ask to seek in
time to 0 (which should seek in bytes to 0), then write OFFS bytes from the
data we remembered at start.

That should ensure that we only output time segments, and that we can still
mimic a seek in bytes to near the start. We only need to remember enough bytes
to always rewrite from 0 (I see three seeks here, all to under 30 bytes offset,
which should be constrained by the header format).

It's hacky but should work. Right ? :)

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