[Bug 646327] [h264parse] add property to drop buffers until codec-data has been determined

[GStreamer (bugzilla.gnome.org)]

https://bugzilla.gnome.org/show_bug.cgi?id=646327
  GStreamer | gst-plugins-bad | git

--- Comment #16 from Andoni Morales <ylatuya at gmail.com> 2013-05-08 10:04:47 UTC ---
(In reply to comment #14)
> Andoni: am I correct to assume that even for intra-refresh streams you still
> get regular SPS/PPS? If so, how regular? If I'm not mistaken we'd just start
> outputting things a little later, which doesn't seem unreasonable, esp. with
> intra-refresh. I think it's reasonable to e.g. wait a full refresh cycle before
> starting to output images - so if we can detect that (can we?) then we could
> just cache the data and send it delayed. .

Correct, SPS/PPS will be inserted in-band at the same frequency. The frequency
can vary a lot but it's usually in the order of 1 each 10 frames for live
streams.
Delaying outputting data could for instance fix the case in which you get a
complete GOP and the PPS/SPS later instead of having to drop it.
But dropping data should be an option in all cases.

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