Gstreamer ONVIF RTSPServer issue

[Mathieu Duponchelle]

Hello,

I implemented those elements, but I only tested the pay element by
depayloading an existing metadata stream, repayloading it and comparing
the output.

The method you describe sounds like it should work, perhaps open an
issue with some sample code?

Cheers,
Mathieu

On Fri, 2023-08-04 at 16:09 +0200, Przemysław Janikula via gstreamer-
devel wrote:
> Hello,
>  
> I’m trying to create RTSP Server using Gstreamer in such a way that
> it would be compatible with ONVIF. My goal is to provide two
> endpoints:
>  * /video - streaming simply video over RTSP
>  * /metadata – streaming ONVIF metadata (XML containing bounding
> boxes of objects in video stream)
>                                                                      
>                                                                    
> I’ve found Gstreamer plugins which I guess will be necessary, as I
> wasn’t able to stream metadata in any form over RTSP. In gst-plugins-
> rs I found gst-plugins-onvif which seems to provide necessary
> elements of pipeline such as rtponvifmetadatapay and
> onvifmetadatacombiner. However I still cannot create proper pipeline.
> I’m trying to use pipeline "appsrc name=metadata! rtponvifmetadatapay
> pt=96 " inside RTSPMediaFactory to stream at least only metadata, but
> I cannot recieve anything on the other end. I’m using Python bindigs
> and I’m overloading ‘need-data’ in appsrc to send XML data to the
> buffer.  Could you please provide me example of pipeline that could
> help me accomplish streaming ONVIF metadata using RTSP server?
> 
> Best Regards,
> Przemysław Janikula