v4l2src: device or resource busy

[Nicolas Dufresne]

Le lun. 9 sept. 2019 14 h 41, IgalKroyter <igalkroy at gmail.com> a écrit :

> hi,
>
> I am trying to restart a pipeline after it was GST_STATE_NULL and
> unreferenced. Though after rebuilding the pipeline and trying to start it
> the following message is displayed: *"libv4l2: error setting pixformat:
> Device or resource busy"*. I guess it is the v4l2src component, as if once
> I
> initialise it, the relevant HW resource is occupied and cannot be release
> although the v4l2src component is dereferenced.
>
> Any suggestions? Am I correct?
>

A buffer leak could leak could lead to this. Note that on newer kernel this
restriction has been lifted, a driver can now be detached from its buffers
and support for this has been added in v4l2src (not released yet).


>
>
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