RAW/Bayer format FOURCCs

RAW/Bayer format FOURCCs

[Arne Caspari]

Hello, 

I am looking for the correct FOURCC to use for a RAW Bayer format: RGGB
16 bit. 

In the v4l2 specification, there is V4L2_PIX_FMT_SBGGR8 ( 'BA81' ) for
BGGR 8 bit and V4L2_PIX_FMT_SBGGR16 ( 'BA82' ) for BGGR 16 bit. I do not
really see a pattern in the FOURCC assignment here. Does anybody know
what the correct FOURCC should look like? 


Thanks, 

-- 
Arne Caspari    --    unicap-imaging

http://www.unicap-imaging.org

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Re: RAW/Bayer format FOURCCs

[Daniel Glöckner]

On Mon, May 05, 2008 at 09:35:47AM +0200, Arne Caspari wrote:
> I am looking for the correct FOURCC to use for a RAW Bayer format: RGGB
> 16 bit. 
> 
> In the v4l2 specification, there is V4L2_PIX_FMT_SBGGR8 ( 'BA81' ) for
> BGGR 8 bit and V4L2_PIX_FMT_SBGGR16 ( 'BA82' ) for BGGR 16 bit. I do not
> really see a pattern in the FOURCC assignment here. Does anybody know
> what the correct FOURCC should look like? 

There is no pattern.

The BA8x FourCCs were invented by Luca Risolia:
http://marc.info/?l=linux-video&m=108062090927323

The BYRx FourCCs are used by CineForm's products when they put raw
pictures into AVI and MOV. David Newman's post on dvinfo.net is probably
the source for the fourcc.org entries. Looking at CineForm's NEO player
I see up to BYR3. Some update logs on the CineForm website mention BYR4.

  Daniel

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Re: RAW/Bayer format FOURCCs

[Arne Caspari]

Daniel, 

Thank you very much for your informative post. I will look into the
information you provided. 


 /Arne


On Mon, 2008-05-05 at 17:06 +0200, Daniel Glöckner wrote:
> On Mon, May 05, 2008 at 09:35:47AM +0200, Arne Caspari wrote:
> > I am looking for the correct FOURCC to use for a RAW Bayer format: RGGB
> > 16 bit. 
> > 
> > In the v4l2 specification, there is V4L2_PIX_FMT_SBGGR8 ( 'BA81' ) for
> > BGGR 8 bit and V4L2_PIX_FMT_SBGGR16 ( 'BA82' ) for BGGR 16 bit. I do not
> > really see a pattern in the FOURCC assignment here. Does anybody know
> > what the correct FOURCC should look like? 
> 
> There is no pattern.
> 
> The BA8x FourCCs were invented by Luca Risolia:
> http://marc.info/?l=linux-video&m=108062090927323
> 
> The BYRx FourCCs are used by CineForm's products when they put raw
> pictures into AVI and MOV. David Newman's post on dvinfo.net is probably
> the source for the fourcc.org entries. Looking at CineForm's NEO player
> I see up to BYR3. Some update logs on the CineForm website mention BYR4.
> 
>   Daniel


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