Measuring pipeline latency

pisymbol . pisymbol at gmail.com
Tue Aug 20 19:15:38 UTC 2019


I have Googled this topic extensively but I still don't have a clear answer
yet.

I can use the "identity" function to try to come up with something adhoc
but I see there is a "latency" plugin with almost zero doc. Can one use
that to measure latency between source and sink? Another topic that comes
up is the ability to query latency via the GstQuery object. But I couldn't
find a real example and I'm not sure how ones uses it!?

I'm trying to measure two things:

1) Latency between one or more elements in my pipeline

2) Latency across my entire pipeline

I'm doing this in Python. What are the best practices here?

Thanks!

-aps
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