[gst-devel] Getting the complete caps from rtph264pay

ScreenName01 lwhlee at hotmail.com
Wed May 27 23:53:22 CEST 2009


Have you tried running gst-launch with the -v option for verbose output?

This should provide you the information needed to set your caps.


Florent THIERY-2 wrote:
> 
> Hello
> 
> I am trying to get the caps provided by rtph264py (as example) to
> construct the corresponding sdp file in [1]. I partially manage to get
> something:
> 1) i connect the pad of rtph264pay to caps notification;
> 2) callback notify_caps prints the caps, by doing get_caps
> 
>     def notify_caps(self, pad, caps):
>         caps =  pad.get_caps()
>         print caps
> 
> The result is:
> application/x-rtp, media=(string)video, payload=(int)[ 96, 127 ],
> clock-rate=(int)90000, encoding-name=(string)H264
> 
> I need the other caps (sprops parameter sets, etc...) to build the sdp
> file.
> 
> How can i get these ? I managed to do so by using an interactive shell
> (ipython) through pad.get_negociated_caps(), but i don't know how to
> do this in my application.
> 
> Thanks for any help;
> 
> Florent
> 
> [1]
> http://code.google.com/p/gstmanager/source/browse/trunk/gstmanager/bins/rtpencodingbin.py
> 
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