Re: ptzProxy setSpeed problem

On Thursday 22 August 2013 19:39:08 Rich Mattes wrote:
> On 08/22/2013 11:37 AM, jem35 wrote:
> > Hello !
> > 
> > I'm controlling a ptz Camera with Player using the ptzProxy.
> > I want to do a speed controlling. I succeed to control the pan and the
> > tilt
> > in speed but i can't do it with the zoom.
> > For the moment, I can only control the zoom in Position.
> > 
> > My code is something like that :
> >     ptz->SelectControlMode(PLAYER_PTZ_VELOCITY_CONTROL);
> >     ptz->SetSpeed(val1, val2, val3);
> > 
> > Is there anything that I'm doing wrong ? Is there min-max value ?
> > 
> > Thank you.
> 
> You're probably not doing anything wrong, it depends on the driver
> you're using.  Player drivers don't usually implement all of the
> functionality exposed by the interfaces.  It might be the case that the
> driver simply doesn't handle changing zoom with a velocity control, and
> only takes absolute positions.  If the driver isn't documented, you'll
> have to look at the code to be sure.

The driver in question is the sonyevid30.  I just had a look and there are no 
functions to set/get zoom speed.  I wonder if this is a limitation of the 
cameras/VISCA protocol.  Something to look into I guess.

Fred

> 
> Rich
> 
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