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media: Documentation: media: *_DEFAULT targets for subdevs

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Some sensors have optical blanking areas, this is, pixels that are
painted and do not account for light, only noise.

These special pixels are very useful for calibrating the sensor, but
should not be displayed on a DEFAULT target.

Signed-off-by: Ricardo Ribalda Delgado <ribalda@kernel.org>
Acked-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab@kernel.org>
This commit is contained in:
Ricardo Ribalda Delgado 2019-10-25 11:47:06 +02:00 committed by Mauro Carvalho Chehab
parent ae02d49493
commit 4edead77fa
1 changed files with 3 additions and 1 deletions
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4
Documentation/media/uapi/v4l/v4l2-selection-targets.rst
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@ -38,8 +38,10 @@ of the two interfaces they are used.
* - ``V4L2_SEL_TGT_CROP_DEFAULT``
- 0x0001
- Suggested cropping rectangle that covers the "whole picture".
This includes only active pixels and excludes other non-active
pixels such as black pixels.
- Yes
- Yes
- No
* - ``V4L2_SEL_TGT_CROP_BOUNDS``
- 0x0002
- Bounds of the crop rectangle. All valid crop rectangles fit inside