alsasink underrun recovery issue in a synchronized streaming usecase

Nicolas Dufresne nicolas at ndufresne.ca
Sat Feb 24 13:38:49 UTC 2018


Le samedi 24 février 2018 à 00:55 -0700, danny.smith a écrit :
> Hi all,
> 
> I am using scenario where we stream synchronized audio from one sender to
> multiple receivers using the approach outlined in the 2015 Gstreamer
> conference in Dublin by Sebastian Dröge (Synchronised multi-room media
> playback and distributed live media processing and mixing).
> 
> I have set up my latencies towards a more "low-latency" usecase and it works
> fine.
> 
> When I stress my receivers by doing other stuff on the same platform I get
> alsasink underruns which are expected due to small buffers and period times
> but not a problem for my usecase. However, quite often the pipeline does not
> recover correctly from these underruns. Audio can disappear completely,
> sometimes it comes back a while later. It can also become distorted.
> 
> We are using gstreamer 1.10.4 and kernel 4.x. Any ideas or hints on what
> might be causing this? The pipeline seems to be running fine.

Sounds like a bug which will require a lot of investigation to explain.
 Can you file a bug on bugs.gnome.org ?

> 
> Regards,
> Danny
> 
> 
> 
> 
> 
> --
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