Re: [PATCH 2/5] videodev.h: add PIX_FMT_FWHT for use with vicodec

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On 07/19/2018 05:39 PM, Sakari Ailus wrote:
> On Thu, Jul 19, 2018 at 03:20:22PM +0200, Hans Verkuil wrote:
>> On 07/19/18 15:15, sakari.ailus@xxxxxx wrote:
>>> On Thu, Jul 19, 2018 at 02:13:50PM +0200, Hans Verkuil wrote:
>>>> From: Hans Verkuil <hansverk@xxxxxxxxx>
>>>>
>>>> Add a new pixelformat for the vicodec software codec using the
>>>> Fast Walsh Hadamard Transform.
>>>>
>>>> Signed-off-by: Hans Verkuil <hansverk@xxxxxxxxx>
>>>
>>> Could you add documentation for this format, please?
>>>
>>
>> ??? It's part of the patch:
>>
>> diff --git a/Documentation/media/uapi/v4l/pixfmt-compressed.rst b/Documentation/media/uapi/v4l/pixfmt-compressed.rst
>> index abec03937bb3..e5419f046b59 100644
>> --- a/Documentation/media/uapi/v4l/pixfmt-compressed.rst
>> +++ b/Documentation/media/uapi/v4l/pixfmt-compressed.rst
>> @@ -95,3 +95,10 @@ Compressed Formats
>>        - ``V4L2_PIX_FMT_HEVC``
>>        - 'HEVC'
>>        - HEVC/H.265 video elementary stream.
>> +    * .. _V4L2-PIX-FMT-FWHT:
>> +
>> +      - ``V4L2_PIX_FMT_FWHT``
>> +      - 'FWHT'
>> +      - Video elementary stream using a codec based on the Fast Walsh Hadamard
>> +        Transform. This codec is implemented by the vicodec ('Virtual Codec')
>> +	driver.
>>
>> Since the whole codec is implemented in the vicodec source I didn't think it
>> necessary to say more about it.
> 
> Oh, well. The source is there but user space developers shouldn't need to
> read it. OTOH it might be that they're also not the primary audience for
> this driver either. If there's a Wikipedia article you could refer to or
> such that'd be fine IMO, too.
> 
> Up to you.
> 

Tom,

Do you have a newer version of your document? If not, can I refer to the version
I have? If it can be put up at the linuxtv.org website, then that takes care of
the documentation.

Regards,

	Hans



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