Print processing latency
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Hi, I followed the link https://gstreamer.freedesktop.org/documentation/design/tracing.html#print-processing-latencies, set the environment variables and ran the pipeline as follows: //-------------------------------------------------------------------------------------------------------------------------------- export GST_DEBUG="GST_TRACERS:7" export GST_TRACERS=latency gst-launch-1.0 audiotestsrc num-buffers=10 ! audioconvert ! volume volume=0.7 ! autoaudiosink Output: Setting pipeline to PAUSED ... Pipeline is PREROLLING ... Redistribute latency... Pipeline is PREROLLED ... Setting pipeline to PLAYING ... New clock: GstAudioSinkClock Got EOS from element "pipeline0". Execution ended after 0:00:00.237344143 Setting pipeline to PAUSED ... Setting pipeline to READY ... Setting pipeline to NULL ... Freeing pipeline ... //---------------------------------------------------------------------------------------------- The above output is exactly the same as the output that I get when environment variables are not set. Am I missing something here? What output must I expect? Help Appreciated... Thanks and Regards, _______________________________________________ gstreamer-devel mailing list [hidden email] https://lists.freedesktop.org/mailman/listinfo/gstreamer-devel |
Re: Print processing latency
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Le lundi 25 mars 2019 à 22:16 +0530, Saurabh Bora a écrit :
> Hi, > > I followed the link https://gstreamer.freedesktop.org/documentation/design/tracing.html#print-processing-latencies, set the environment variables and ran the pipeline as follows: > //-------------------------------------------------------------------------------------------------------------------------------- > export GST_DEBUG="GST_TRACERS:7" I'm sorry for this, but there is no S to that debug section (/o\) > export GST_TRACERS=latency > gst-launch-1.0 audiotestsrc num-buffers=10 ! audioconvert ! volume volume=0.7 ! autoaudiosink > > Output: > Setting pipeline to PAUSED ... > Pipeline is PREROLLING ... > Redistribute latency... > Pipeline is PREROLLED ... > Setting pipeline to PLAYING ... > New clock: GstAudioSinkClock > Got EOS from element "pipeline0". > Execution ended after 0:00:00.237344143 > Setting pipeline to PAUSED ... > Setting pipeline to READY ... > Setting pipeline to NULL ... > Freeing pipeline ... > //---------------------------------------------------------------------------------------------- > > The above output is exactly the same as the output that I get when environment variables are not set. > Am I missing something here? What output must I expect? > > Help Appreciated... > > _______________________________________________ > gstreamer-devel mailing list > [hidden email] > https://lists.freedesktop.org/mailman/listinfo/gstreamer-devel _______________________________________________ gstreamer-devel mailing list [hidden email] https://lists.freedesktop.org/mailman/listinfo/gstreamer-devel |
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Ah..My Bad!! Thanks for pointing it out Nicolas. I was able to see GST_TRACER logs Actually, I am working on finding out latency for different elements in a live gstreamer pipeline which looks something like below: v4l2src ! videoconvert ! vp8enc ! webrtcbin As I am expecting to see output on the browser, I also need to find out end to end latency, from source(live camera feed) to destination(web browser). I believe enabling the environment variables would not suffice in this scenario. Thanks and Regards, Saurabh Bora On Mon, Mar 25, 2019, 22:49 Nicolas Dufresne <[hidden email]> wrote: Le lundi 25 mars 2019 à 22:16 +0530, Saurabh Bora a écrit : _______________________________________________ gstreamer-devel mailing list [hidden email] https://lists.freedesktop.org/mailman/listinfo/gstreamer-devel |
Re: Print processing latency
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Le lundi 25 mars 2019 à 23:25 +0530, Saurabh Bora a écrit :
I'd be really happy if you give a try on what m y Colleague and I have been working on for a while. It's a enhancement of the latency trace to add per-element effective latency and also reported latency. With that you should be able to see if an element is using more latency when it's max reported latency allow. Meanwhile, I can give you a hint, vp8enc has variable latency, unless you set the dealine= property. That assumes you're CPU is fast enough.
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