Get NTP and RTP timestamp using rtspsrc

[Nicolas Dufresne]

Le mardi 30 juin 2020 à 13:13 -0500, pasifus a écrit :
> Hi devs,
> 
> I looking for simple way to get NTP and RTP timestamps from RTCP package
> using *rtspsrc*.
> 
> I listen in gstrtspsrc.c and found that it open second pipe for RTCP using
> *rtpsession* so I'm looking for way to get it session using  *rtspsrc*
> element (without changes in gstreamer/plugins)
> 
> Or may somebody know more simple way?

The rtspsrc does not depayload the RTP packets (not package). You can
add your own filter or use a pad probe to inspect these packets. The
GstRTPBuffer API is really handly to map and read the content of an RTP
packet. In this API you'll find gst_rtp_hdrext_get_ntp_*() functions
(assuming you have that header extension)
and gst_rtp_buffer_get_timestamp() to read the RTP timestamp, which is
always present.

> 
> Thanks
> 
> 
> 
> --
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