Hi,
On Tue, Feb 25, 2020 at 7:01 PM Gerd Hoffmann <kraxel@xxxxxxxxxx> wrote:
>
> Hi,
>
> > + /*
> > + * Followed by either
> > + * - struct virtio_video_mem_entry entries[]
> > + * for VIRTIO_VIDEO_MEM_TYPE_GUEST_PAGES
> > + * - struct virtio_video_object_entry entries[]
> > + * for VIRTIO_VIDEO_MEM_TYPE_VIRTIO_OBJECT
>
> Wouldn't that be a single virtio_video_object_entry?
> Or could it be one per plane?
It depends on the value of "planes_layout" in virtio_video_resource_create.
I have documented this restriction as follows:
> +If \field{planes_layout} is VIRTIO_VIDEO_PLANES_LAYOUT_SINGLE_BUFFER,
> +the number of \field{virtio_video_object_entry} MUST be one. If it is
> +VIRTIO_VIDEO_PLANES_LAYOUT_PER_PLANE, the number MUST be equal to
> +\field{num_planes}.
Best regards,
Keiichi
>
> cheers,
> Gerd
>
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