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Re: [pwc] bayer mode

To: Philips Webcam Linux Driver <>
Subject: Re: [pwc] bayer mode
From: Luc Saillard <>
Date: Fri, 27 Jan 2006 14:36:45 +0100
On Fri, Jan 27, 2006 at 02:02:40PM +0100, matthieu castet wrote:
> Hi,
> 
> What's the status of the bayer mode ?
> 
> - Only the decompressor is missing and the driver could export 
> V4L2_PIX_FMT_SBGGR8 format.

In the current pwc-driver, we can export bayer compressed stream to the user
land.  The current libpwc (not released) can uncompress this stream to
produce a RGB format. I don't like the output of the image and plan to add
better algorithm (but use more cpu times,memory) before releasing this
version. Note the driver will never export V4L2_PIX_FMT_SBGGR8 because you
need to have the decompressor to produce a image at this format. Secondly
they are not one bayer format, but severall, with 3 colors, you can have
theses format:

B G B G   G B G B   R G R G   G R G R
G R G R   R G R G   G B G B   B G B G
B G B G   G B G B   R G R G   G R G R
G R G R   R G R G   G B G B   B G B G
 
> - Like said in http://www.smcc.demon.nl/webcam/pwcx-9.0.tar.gz, it is 
> not working for an other reason.

Ahhhh, if it's for another reason i don't need to spent my time to code.

Luc
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