[gst-devel] RTP Caps,base payloader and jrtplib
Thomas Vander Stichele
thomas at apestaart.org
Wed Nov 2 03:34:02 CET 2005
> I have gone through the RTP caps again described in
> gst-plugins-good/gst/rtp/README and I see ssrc, timestamp start and
> sequence number start all defined in the caps. They are ssrc,
> clock-base, seqnum-base. These same values are randomly generated in
> the base payloader class. Wim, why do we need this information in the
> caps? and why do we need it to be done by the base payloader?
> rtpbin/jrtplib already does all of this transparently. I don't see
> why it needs to be in the caps, the generated values can be extracted
> from rtpbin/jrtplib if needed by the clients, but why the caps?
not everyone uses rtpbin - it should be possible to retrieve the random
values chosen by the payload encoder so the application using it can
create the necessary session descriptions.
How does rtpbin do this ? It should probably be using the exact same
method - get them from the caps.
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