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

Nicolas Dufresne nicolas at
Wed Jul 24 20:39:04 UTC 2019

Le mercredi 24 juillet 2019 à 09:31 -0500, IgalKroyter a écrit :
> Hi,
> although it is an old post I have the following questions:
> I have 3 pipelines which have to be synchronized.
> I have applied the above mentioned queries and saw that all pipelines share
> different value.
> The questions that I have are how do I modify the values taken from the main
> pipeline to the other two pipelines and when (before or after setting
> 1) min Latency,max latency, live (how and when)

You can only modify the min latency, see gst_pipeline_set_latency()

> 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

> Regards. 
> --
> Sent from:
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> gstreamer-devel mailing list
> gstreamer-devel at
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