[Qce-ga-devel] Re: Quickcam Messenger in video4linux git tree

[Alex D. <ale...@gm...>]

On 5/24/06, Luca Risolia <luc...@st...> wrote:
> On Wed, May 24, 2006 at 05:32:35PM +0200, Pinchart Laurent Pinchart wrote=
:
> > Hi Jaya,
> >
> > > > I've had a look at the usbvideo module, and the least I have to say=
 is
> > > > that I was very disappointed. I personally completely fail to see t=
he
> > > > point in that
> > >
> > > :-) Okay, this is good to discuss. I think we should find out the
> > > shortcommings of usbvideo and hopefully they can be addressed to
> > > everyone's satisfaction.
> >
> > >From what I've seen (there might be a few things missing as I haven't =
studied
> > the usbvideo code in details), usbvideo implements the following:
> >
> > Image processing and format conversion
> > --------------------------------------
> >
> > - YUV_TO_RGB_BY_THE_BOOK
> > - RGB24_PUTPIXEL
> > - usbvideo_DeinterlaceFrame
> > - usbvideo_DrawLine
> > - usbvideo_SoftwareContrastAdjustment
>
> While we are at it, parts of the PWC driver, which have been added to
> the mainline kernel recently, also implement lot of image processing
> in kernel space.
> As Mauro told, I really hope all this stuff will go away before 2.6.18.
> We should really invest some time to design a flexible V4L2 library to
> export these functions to the applications together with some low-level
> functions for accessing a device and getting/setting its functionalities.
> This may also save us from the ioctl proliferation we are talking about t=
hese days.
>

IIRC, I think gstreamer provides support for bayer.

Alex

> Best regards
> Luca Risolia
>
>
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