Re: [virtio-dev] Re: [PATCH v2 1/1] virtio-video: Add virtio video device specification

Gerd Hoffmann
2020-01-06T08:33:49Z

Hi,

> > We also see the need to add a max_streams value to this structure so as to
> > explicitly provide a limit on the number of streams the guest can create.
>
> What would be the advantage over just trying to create one and
> failing? The maximum number would be only meaningful for the special
> case when the streams are always only created by one user space
> process. Otherwise, if several processes do that, they are not aware
> of each other and the number could be higher than they can actually
> create, because other processes could have some streams created
> already.

Also the number of streams might not be fixed but depend on stream
parameters, i.e. hardware can decode one hd or two sd streams ...

cheers,
Gerd