Re: Webcam QT Widget

On Friday 06 August 2004 19:51, George Staikos wrote:
> On Friday 06 August 2004 13:39, Dirk Ziegelmeier wrote:
> > On Friday 06 August 2004 13:29, Nahuel Greco wrote:
> > > Hi, I have a QT (non KDE) application and I want to add a widget
> > > displaying realtime video from a webcam. Also I want to eventually take
> > > jpg or pnm snapshots from it. Googling, seems that kwintv is the only
> > > option for QT with support for overlay video.
> > >
> > > So, has kwintv an usable (non kde) Widget for this purpose? Any hints
> > > or advices on where look at the code for that? (with trivial or
> > > non-trivial potential qt adaptation/isolation work).
> >
> > basically kdetv contains a Qt TV widget. If you take only kvideoio and
> > adapt the v4l plugin for your needs you would have such a widget.
> > Unfortunately, the v4l plugin is not very usable for webcams since it
> > lacks image format conversion (on the TODO list). It seems many webcams
> > to not grab YUV (what XVIDEO wants).
>
>   Though the code was originally developed with a quickcam express
> actually, and it's very easily to adapt RGB.
Yes it is. Acutally, there is a RGB->YUV conversion routine in CVS 
(libkdetv/kdetvvideo/kdetvformatconversion.cpp) but it is not being used so 
far.

Dirk