Sakari,

Thanks for the patch.

On 2/3/12, Sakari Ailus <sakari.ai...@iki.fi> wrote:
> Document guidelines how 4CC codes should be named. Only raw bayer is
> included currently. Other formats should be documented later on.
>
> Signed-off-by: Sakari Ailus <sakari.ai...@iki.fi>
> ---
>  Documentation/video4linux/4CCs.txt |   32 ++++++++++++++++++++++++++++++++
>  1 files changed, 32 insertions(+), 0 deletions(-)
>  create mode 100644 Documentation/video4linux/4CCs.txt
>
> diff --git a/Documentation/video4linux/4CCs.txt
> b/Documentation/video4linux/4CCs.txt
> new file mode 100644
> index 0000000..bb4a97d
> --- /dev/null
> +++ b/Documentation/video4linux/4CCs.txt
> @@ -0,0 +1,32 @@
> +Guidelines for Linux4Linux pixel format 4CCs
> +============================================
> +
> +Guidelines for Video4Linux 4CC codes defined using v4l2_fourcc() are
> +specified in this document. First of the characters defines the nature of
> +the pixel format, compression and colour space. The interpretation of the
> +other three characters depends on the first one.
> +
> +Existing 4CCs may not obey these guidelines.
> +
> +Formats
> +=======
> +
> +Raw bayer
> +---------
> +
> +The following first charcters are used by raw bayer formats:
   A small spelling mistake 'charcters', just pointing out since its a
documentation file :-)

Regards,
--Prabhakar Lad

> +
> +     B: raw bayer, uncompressed
> +     b: raw bayer, DPCM compressed
> +     a: A-law compressed
> +     u: u-law compressed
> +
> +2nd character: pixel order
> +     B: BGGR
> +     G: GBRG
> +     g: GRBG
> +     R: RGGB
> +
> +3rd character: uncompressed bits-per-pixel 0--9, A--
> +
> +4th character: compressed bits-per-pixel 0--9, A--
> --
> 1.7.2.5
>
> --
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