On 12/10/2011 11:33 AM, Sakari Ailus wrote:
> On Sun, Dec 04, 2011 at 04:16:12PM +0100, Sylwester Nawrocki wrote:
>> Change the V4L2_CID_FOCUS_AUTO control type from boolean to a menu
>> type. In case of boolean control we had values 0 and 1 corresponding
>> to manual and automatic focus respectively.
>>
>> The V4L2_CID_FOCUS_AUTO menu control has currently following items:
>> 0 - V4L2_FOCUS_MANUAL,
>> 1 - V4L2_FOCUS_AUTO,
>> 2 - V4L2_FOCUS_AUTO_MACRO,
>> 3 - V4L2_FOCUS_AUTO_CONTINUOUS.
>
> I would put the macro mode to a separate menu since it's configuration for
> how the regular AF works rather than really different mode.
>
> ...
>
>> @@ -567,6 +576,7 @@ const char *v4l2_ctrl_get_name(u32 id)
>> case V4L2_CID_PRIVACY: return "Privacy";
>> case V4L2_CID_IRIS_ABSOLUTE: return "Iris, Absolute";
>> case V4L2_CID_IRIS_RELATIVE: return "Iris, Relative";
>> + case V4L2_CID_DO_AUTO_FOCUS: return "Do Auto Focus";
>
> I'd perhaps use "begin" or "start". How does the user learn the autofocus
> has finished? I think this looks like quite similar problem than telling the
> flash strobe status to the user. The solution could also be similar to that.
Hi,
considering your previous comments, how about the below focusing control set ?
Controls for starting/stopping auto focusing (for V4L2_CID_FOCUS_AUTO ==
V4L2_FOCUS_MANUAL):
V4L2_CID_START_AUTO_FOCUS - (button) - start auto focusing,
V4L2_CID_STOP_AUTO_FOCUS - (button) - stop auto focusing (might be also
useful in V4L2_FOCUS_AUTO_CONTINUOUS
mode)
and auto focus status:
V4L2_CID_AUTO_FOCUS_STATUS - (boolean) - whether focusing is in progress or not
(when V4L2_CID_FOCUS_AUTO == V4L2_FOCUS_MANUAL)
V4L2_CID_FOCUS_AUTO would basically retain it's current semantics:
V4L2_CID_FOCUS_AUTO - (boolean) - select focus type (manual/auto
continuous)
V4L2_FOCUS_MANUAL - manual focus
V4L2_FOCUS_AUTO_CONTINUOUS - continuous auto focus
(or V4L2_FOCUS_AUTO)
New menu control to choose behaviour of auto focus (either single-shot
or continuous):
V4L2_CID_AF_MODE - select auto focus mode
V4L2_AF_MODE_NORMAL - "normal" auto focus
V4L2_AF_MODE_MACRO - macro (close-up)
V4L2_AF_MODE_SPOT - spot location passed with
selection API or other control
V4L2_AF_MODE_FACE_DETECTION - focus point indicated by internal
face detector
I might try it out and implement in M-5MOLS driver, to see how it works
in practice.
Does it make sense for you ?
--
Regards,
Sylwester
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