AVStream MiniDriver how to Support Rotation

I have a mini driver (avstream)
I need to support rotation of the camera, what the way to do this?
I read about KSPROPERTY_CAMERACONTROL_ROLL_RELATIVE
but how should I use this?
In addition there are all the other properties specific for the relative
are these different properties? what’s the relation between these and the
same non rotate properties
will appreciate any help or relevant link
thanks

NtDev mm wrote:

I have a mini driver (avstream)
I need to support rotation of the camera, what the way to do this?

What, exactly, do you mean by that? The term “camera rotation” can mean
different things.

I read about KSPROPERTY_CAMERACONTROL_ROLL_RELATIVE
but how should I use this?

That property is intended for use with a camera that has a 3-axis
controller. That is, a camera with motors that control the positioning
of the camera.

In addition there are all the other properties specific for the
relative are these different properties? what’s the relation between
these and the same non rotate properties

With “absolute” positioning, you say “change your roll position to +45
degrees.” The camera goes to that exact angle.

With “relative” positioning, you say “from wherever you are now, start
rolling clockwise”. It keeps rolling until you stop it. You don’t get
the exact position.


Tim Roberts, xxxxx@probo.com
Providenza & Boekelheide, Inc.