How to I enable latencytracer in Python?

[Michael]

Thank you Nicolas, will do!

Am Sa., 2. Mai 2020 um 23:00 Uhr schrieb Nicolas Dufresne <
nicolas at ndufresne.ca>:

> Le samedi 02 mai 2020 à 19:01 +0200, Michael a écrit :
> >
> > Hello everybody,
> >
> >
> > I wanna investigate latency issues in my pipeline!
> >
> > I found that using Tracers should be the way to go with `latencytracer`,
> but
> > ...
> > I couldn't find any example except using it in `gst-launch-1.0`
> >
> > GST_DEBUG="GST_TRACER:7" GST_TRACERS=latency(flags=element)
> > How would I enable it in a python script?  🤷‍♂️
> >
> > GST_TRACERS=latency(flags=element)
> >
> > Finding a way for debugging wasn't that easy starting from zero.
> >
> > Gst.debug_set_active(True)
> > #Gst.debug_set_default_threshold(4)
> > #Gst.debug_set_threshold_for_name('test*', Gst.DebugLevel.TRACE  )
> > #Gst.debug_set_threshold_for_name("qt*", 5)
> >
> > But how would I trace the latency for each Element in the current pipe
> during
> > runtime, in python?
>
> There is currently no API to the tracers, this is something we should do,
> we we
> already have few bits marked as unstable API because their API isn't yet
> in a
> shape we are confident to freeze it.
>
> From the time being, you need to set the env before starting the process
> or do
> this before calling Gst.init():
>
>         os.environ["GST_TRACERS"] = "latency(flags=element)"
>
> There is no way to turn on and off at run-time for now.
>
> >
> > Thank you in advance.
> >
> > Michael
> >
> >
> > _______________________________________________
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> > gstreamer-devel at lists.freedesktop.org
> > https://lists.freedesktop.org/mailman/listinfo/gstreamer-devel
>
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