failed to allocate memory error on pipeline

[Nicolas Dufresne]

Le vendredi 04 mars 2022 à 13:56 +1300, Nathan Sinclair via gstreamer-devel a
écrit :
> I am running the following command as part of a pipeline that grabs the video
> stream from stdout, flips and displays it using framebuffer (because we're
> using pi zero without gui)
> gst-launch-1.0 fdsrc ! video/x-h264,framerate=25/1,
> stream-format=byte-stream ! decodebin ! video/x-raw,framerate=25/1 
> ! videoflip method=vertical-flip 
> ! videoconvert ! fbdevsink
> 
> https://pastebin.com/MZf7cKHL
> This has the verbose debugging of the pipeline. 
> We are using a pi zero without gui. 
> 
> Is this failed memory error a known issue? is there a work around?

I believe you should find a matching kernel trace (dmesg) if my guess is
correct. But you might be running low in CMA memory.  Typically you are hitting
this:

https://github.com/raspberrypi/linux/issues/3861

I'm not sure how that is done technically on your distro, but passing cma=512M
to your kernel command line will likely fix it.

> 
> Regards
> 
> Nathan

-------------- next part --------------
An HTML attachment was scrubbed...
URL: <https://lists.freedesktop.org/archives/gstreamer-devel/attachments/20220304/ca3c6ed8/attachment.htm>