[Bug 796525] v4l2h264enc: when gst-rtsp-server is used in conjunction with v4l2h264enc on an imx6, nobody allocates downstream buffers

[GStreamer (GNOME Bugzilla)]

https://bugzilla.gnome.org/show_bug.cgi?id=796525

--- Comment #14 from Nicolas Dufresne (ndufresne) <nicolas at ndufresne.ca> ---
Ok, there is two form of renegotiation, firs one, there is new caps on the sink
pad, that's the one covered. You'll see the two calls to v4l2_object_stop() in
there, which do STREAMOFF.

The second one is the renegotiation event on the srcpad (caused by linking
downstream). I think this one is not currently covered and am guessing that
this is what happens. There is no obligation to change the caps though on this
one, the renegotiation event is a suggestion. Worst, changing the caps would
flush the encoder, hence produce a new IDR for nearly no reason.

Can anyone tell me what other encoders do ?

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