How to synchronize buffer timestamp across two gstreamer pipeline(appsink,appsrc, rtspserver)

pisymbol . pisymbol at
Thu Jul 25 22:57:03 UTC 2019

On Wed, Jul 24, 2019 at 4:39 PM Nicolas Dufresne <nicolas at>

> > 2) basetime and starttime (when)
> You will always set starttime to -1 (GST_CLOCK_TIME_NONE) (which will
> tell the pipeline to not update these) and set the basetime to that
> same everywhere using gst_element_set_base_time() on you pipeline
> object.

You do this before set the pipeline tate to playing? And then all streams
will use the same wall clock, is that right?

I have a similar issue where I have two pipelines (left and right camera)
and I would like both of them to be aligned to the same clock.

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