[AG-TECH] webcam problem - lenovo T500 (Fedora Core 10)

[Douglas Kosovic]

 Hi Rob,

> I have AG 3.1 almost working on my lenovo T500 with in-built webcam 
> (running FC10), but I'm stuck on the video out.

> I've run Venue Client in debug mode, and this appears to be where things 
> are dying:
>
> V4L2: start
> V4L2: format cifdecimate: 2
> V4L2: setting input port to 0
> V4L2: failed to set format! requested 352x288, got 320x240
> V4L2: trying resolution under ...

That's the issue with that version of VIC, it expects the capture device to 
support at least CIF (352x288) or QCIF (176x144), i.e. the only two 
resolutions the H.261 standard supports.

Anyway, I've got a new version of VIC that will pad the video frame with a 
black border if it doesn't support 352x288 or 176x144. If you are running 
x86_64 Fedora 10, the RPM can be obtained from:
http://www.vislab.uq.edu.au/ag3/fedora/development/RPMS/vic-2.8ucl1.4.0-0.1.20090212svn.fc10.x86_64.rpm

and installed by issuing (as root user) :
  rpm -Uvh vic-2.8ucl1.4.0-0.1.20090212svn.fc10.x86_64.rpm

I don't have any i386 RPM handy, but it can be built by downloading:
  http://www.vislab.uq.edu.au/ag3/fedora/development/SRPMS/vic-2.8ucl1.4.0-0.1.20090212svn.fc10.src.rpm

then issue the following:
  rpmbuild --rebuild vic-2.8ucl1.4.0-0.1.20090212svn.fc10.src.rpm

install any missing build dependencies with a yum install.

This new version of vic also supports libvl4, see:
  http://fedoraproject.org/wiki/Features/BetterWebcamSupport
which was introduced in Fedora 10 for better webcam support.

The new vic RPM will be making it's way into the AG3 RPM repository soon, 
probably next week.


Cheers,
Doug