[Bug 666517] Frequent deadlock while discovering a MPEG TS file

[GStreamer (bugzilla.gnome.org)]

https://bugzilla.gnome.org/show_bug.cgi?id=666517
  GStreamer | gstreamer (core) | git

--- Comment #5 from Vincent Penquerc'h <vincent.penquerch at collabora.co.uk> 2012-01-12 12:47:02 UTC ---
When adding streams early, a sane looking stream can be added, but there might
be no data coming through for that stream. This will leave the pad blocking
waiting for its first buffer on the far end.

Before the patch, pads are added only when data comes through. This means
subtitles can be missing (though caps checking can sort these), and of course
one could wait a long time for low bitrate streams such as audio only ones.

Now need to think about it to work out what's the best way to fix. Maybe
removing A/V pads for which no data was seen after some time, but that sounds
so hackish :(

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