[gstreamer-bugs] [Bug 641729] [vp8enc] Add properties to control the keyframe distance

[GStreamer (bugzilla.gnome.org)]

https://bugzilla.gnome.org/show_bug.cgi?id=641729
  GStreamer | gst-plugins-bad | git

--- Comment #11 from David Schleef <ds at schleef.org> 2011-02-08 22:29:19 UTC ---
> How would you produce a live stream with X different qualities and synchronise
> them? Note that it should support adding a new stream with a different quality
> on the fly, that's synchronised with the other ones, or synchronising an
> encoder that needed to be restarted. And everything is running in a distributed
> system where the encoders doesn't know each other and there is a single point
> of synchronisation: the live source.

The implementation details of flumotion are uninteresting to me.  However, I do
know that it uses gdppay/gdpdepay internally, which means that you can send a
GstForceKeyUnit event periodically to all of the encoders, which seems like a
darn good way to implement whatever keyframe structure you want and be
guaranteed that it's synchronized across all encoders.

We're trying to move toward a more uniform encoder interface in GStreamer. 
Adding an encoder-specific feature is a step in the wrong direction.

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