[Bug 720389] videodecoder: should release buffer pool sooner

[GStreamer (bugzilla.gnome.org)]

https://bugzilla.gnome.org/show_bug.cgi?id=720389
  GStreamer | gst-plugins-base | git

--- Comment #6 from Nicolas Dufresne <nicolas.dufresne at collabora.co.uk> 2013-12-14 19:39:16 UTC ---
(In reply to comment #5)
> Yes, the format will usually not change after a flush. And usually
> re-negotiation is unnecessary after a flush, of course you could do it but it's
> not needed.
> 
> Renegotiation can be useful if the format did not change though, like when
> downstream was relinked. We do that then already (the RECONFIGURE flag is set
> on the pad then).

Oh, we need a step back a bit an review all of this, as not getting rid of the
pool when that happens would be very dangerous. What happens if we still have
output buffers from the pool driven by an "unlinked" element ?

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