I think that the more AF mode CID is needed apparently in the near
future cause of digital camera function's growth.
And the NEC or Fujitsu ISP Modules use already the AF-S & AF-C mode.
The linux & v4l2 seems to have to support this feature.
The focus mode is belong to the digital camera functions, furthermore
it's very important feature of that.
I wanna that many engineers use the linux for digital camera, and more
detailed focus CID is not avoidable for that.
All right. Anyway, I'll upload the patch about this FOCUS feature in
the soon time,
and I wanna it will be reviewed the linux maintainer, like Hans or Laurent.
Thanks,
Riverful. (or Heungjun Kim :-) )
2009년 3월 28일 (토) 오전 11:17, Dongsoo Kim <dongsoo.kim@xxxxxxxxx>님의 말:
> Hi,
>
>
> 2009. 03. 28, 오전 1:19, Laurent Pinchart 작성:
>
>> Hi,
>>
>> On Friday 27 March 2009 08:24:27 Hans Verkuil wrote:
>>>
>>> On Friday 27 March 2009 07:20:51 Kim, Heung Jun wrote:
>>>>
>>>> Hello, Hans & everyone.
>>>>
>>>> I'm trying to adapt the various FOCUS MODE int the NEC ISP driver.
>>>> NEC ISP supports 4 focus mode, AUTO/MACRO/MANUAL/FULL or NORMAL.
>>>> but, i think that it's a little insufficient to use V4L2 FOCUS Feature.
>>>>
>>>> so, suggest that,
>>>>
>>>> - change V4L2_CID_FOCUS_AUTO's type from boolean to interger, and add
>>>> the following enumerations for CID values.
>>>>
>>>> enum v4l2_focus_mode {
>>>> V4L2_FOCUS_AUTO = 0,
>>>> V4L2_FOCUS_MACRO = 1,
>>>> V4L2_FOCUS_MANUAL = 2,
>>>> V4L2_FOCUS_NORMAL = 3,
>>>> V4L2_FOCUS_LASTP = 3,
>>>> };
>>>>
>>>> how about this usage? i wanna get some advice about FOCUS MODE.
>>
>> V4L2_CID_FOCUS_AUTO is meant to change the auto-focus mode. Can you
>> describe
>> FOCUS_MACRO and FOCUS_NORMAL in more details ? Are they auto-focus modes
>> or
>> just focus presets ?
>
>
> As far as I know, they represent focus lens movement range.
> If you set to AF macro, focus lens scans near range first, so that focusing
> movement could finish earlier.
>
>
>>
>>
>>> This seems more logical to me:
>>>
>>> enum v4l2_focus_mode {
>>> V4L2_FOCUS_MANUAL = 0,
>>> V4L2_FOCUS_AUTO_NORMAL = 1,
>>> V4L2_FOCUS_AUTO_MACRO = 2,
>>> };
>>>
>>> At least this maps the current boolean values correctly. I'm not sure
>>> from
>>> your decription what the fourth auto focus mode is supposed to be.
>>
>> Does an auto-macro focus mode really exists ?
>
>
> Sure, you can find in some digital camera or brand new high end camera
> phones.
>
> By the way, sorry for answering instead of heungjun Kim. I work with him
> actually.
> Is it OK?
>
> Cheers,
>
> Nate
>
>>
>>
>>> But I think it might be better to have a separate control that allows you
>>> to set the auto-focus mode. I can imagine that different devices might
>>> have
>>> different auto-focus modes.
>>>
>>> I've CC-ed Laurent since this is more his field than mine.
>>
>> Regards,
>>
>> Laurent Pinchart
>>
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