[Bug 635020] Flushing everything on a discont produces worse result than just ignoring the discont flag

[GStreamer (bugzilla.gnome.org)]

https://bugzilla.gnome.org/show_bug.cgi?id=635020
  GStreamer | gst-ffmpeg | git

--- Comment #7 from Sebastian Dröge <slomo at circular-chaos.org> 2012-04-19 14:09:28 UTC ---
Here's a summary of an IRC discussion about the DISCONT flag and how it should
be handled in decoder and encoders:

* decoders should handle the DISCONT flag on the input as a hint that something
might be missing and that they might need to do some concealment for missing
data. They must not reset themselves and require a new keyframe or whatever.
* decoders must not forward DISCONT flag downstream
* encoders should handle the DISCONT flag as a hint that timestamp resync
should happen (RESYNC buffer flag in 0.11, so this only applies to 0.10) but
that's it
* encoders must not forward DISCONT flag downstream

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