out of memory using v4l2codecs on sunxi
marek.belisko at gmail.com
Wed Oct 20 07:26:40 UTC 2021
On Tue, Oct 19, 2021 at 3:39 PM Nicolas Dufresne <nicolas at ndufresne.ca> wrote:
> Le mardi 19 octobre 2021 à 13:53 +0200, Belisko Marek via gstreamer-devel a
> écrit :
> > Dear Devs,
> > I have spent the last few days working with the gstreamer master that
> > supports v4l2codecs to decode frames on VPU.
> > It runs on an Allwinner A64 CPU wirk kernel 5.14. Brilliant work so
> > far and I thank you for it!
> > To test I compiled a small c utility that recreates a pipeline every
> > 10s with alternating files.
> > This runs well for several loops, then crashes with error message LINK.
> > Code is based on playback-tutorial1.c, it uses playbin3 however.
> > Either I have to handle the freeing of the pipeline differently (i had
> > that checked by 3 people) or
> > there is a bug in gstreamer that prevents the correct freeing of the pipeline?
> > Additionally I was trying to test endless loops with the EOS signal
> > and seeking. That works well, but after 1000000 frames i get an error
> > as well.
> > Seems v4l2codes has a hard coded limit for the length of a stream.
> > I am on master branch commit 48474d3cf77f91702cc2219ea17ceed881c372ae
> Please use main branch of gstreamer/ repo, we have moved to mono repo now.
> > Would be great if you could help me or point me in the right direction
> > Test code can be found here: https://pastebin.com/e9jx5m69
> > Error logs here: https://pastebin.com/FiK4yGXm and also
> > https://pastebin.com/SxWs7B9v
> I think what matters is "MEDIA_IOC_REQUEST_ALLOC failed: Too many open files".
> Perhpas we have some sort of FD leak triggers with your test code. I think you
> have gathered enough info for a bug report.
> We can work together on getting that fixed. The first step is to reproduce on
> gstreamer main branch, and then we'll try and figure-out what is happening.
> Hopefully we can fix it by 1.20 release (we still have time).
OK I'm in process of compiling latest gstreamer from mono repo and
then I'll retest and let you updated (create issue ;))
> > Many thanks and BR,
> > marek
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