Draw same video on multiple windows.

[Sebastian Dröge]

On Di, 2014-01-14 at 22:49 -0200, Pedro Lacerda wrote:
> 2014/1/13 Nicolas Dufresne <nicolas.dufresne at collabora.com>
> 
> > This will depends on your HW capabilities. But I don't think there is
> > any major problem with that. It's also the way we do present a video
> > preview in video calls.
> >
> 
> Then so will, we have great workstations =)
> 
> Another little question. Seems that my decoding pipeline needs to consume
> some frames guessing RTP and encoding parameters before decode them. But
> when I specify full caps for udpsrc (with sprop-parameter-sets etc) the
> decoding starts almost instantly, although briefly degraded.
> 
> I take 'application/x-rtp...' caps from the log, but I want watch for the
> negotiated caps flowing trough the udpsink. Do you have any suggestion or
> reference? Please, correct me any misunderstanding.

There's no real reference for these caps, and depending on the codec you
will also have different caps each time (h264 encoding properties for
example, which are optional though but will make decoding start faster).
To get an idea of how the caps could look like, take a look at the
payloader in gst-inspect-1.0.

Then during runtime you somehow need to transfer the caps from the
sender to the receiver, which is usually done with another protocol like
RTSP or SIP.

-- 
Sebastian Dröge, Centricular Ltd - http://www.centricular.com
Expertise, Straight from the Source
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