Rtp absolute timestamp

[Pazzo Da Legare]

Dear All,

I'm playing with a rtp souce with a pipeline as

gst-launch  udpsrc port=6666 multicast-group=224.1.0.1
caps="application/x-rtp" ! gstrtpjitterbuffer latency=200  !
rtpmp4vdepay ! ffdec_mpeg4 ! autovideosink

Is there a way to have an absolute time for the GstBuffer instead of a
relative time?

I had a look at

static GstClockTime
calculate_skew (RTPJitterBuffer * jbuf, guint32 rtptime, GstClockTime time,
    guint32 clock_rate)

and I thought the estimation would be an absolute time rather a relative one.

Thank you for your help,

pz