[Bug 682770] v4l2src breaks after renegotiation

[GStreamer (bugzilla.gnome.org)]

https://bugzilla.gnome.org/show_bug.cgi?id=682770
  GStreamer | gst-plugins-good | git

--- Comment #3 from Sjoerd Simons <sjoerd at luon.net> 2012-09-03 19:42:32 UTC ---
(In reply to comment #2)
> There is no guarantee that the buffers will return, an encoder might just hold
> on to a buffer until it gets a new buffer. We maybe need a new event to reclaim
> the outstanding buffers.

I've had a project where i've hit exactly this issue, inventing an event for
that to get the encoder to drop its cached buffer worked out there (the encoder
simply used a keyframe for the next frame).

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