[PATCH v4 00/12] Intel IPU3 ImgU patchset

Sakari Ailus sakari.ailus at iki.fi
Fri Oct 20 09:09:50 UTC 2017


Hi Yong,

On Tue, Oct 17, 2017 at 10:46:48PM -0500, Yong Zhi wrote:
> This patchset adds support for the Intel IPU3 (Image Processing Unit)
> ImgU which is essentially a modern memory-to-memory ISP. It implements
> raw Bayer to YUV image format conversion as well as a large number of
> other pixel processing algorithms for improving the image quality.
> 
> Meta data formats are defined for image statistics (3A, i.e. automatic
> white balance, exposure and focus, histogram and local area contrast
> enhancement) as well as for the pixel processing algorithm parameters.
> The documentation for these formats is currently not included in the
> patchset but will be added in a future version of this set.
> 
> The algorithm parameters need to be considered specific to a given frame
> and typically a large number of these parameters change on frame to frame
> basis. Additionally, the parameters are highly structured (and not a flat
> space of independent configuration primitives). They also reflect the
> data structures used by the firmware and the hardware. On top of that,
> the algorithms require highly specialized user space to make meaningful
> use of them. For these reasons it has been chosen video buffers to pass

Do you have a to-do list for this patchset? I think it would be useful to
maintain one, in case not all the comments have been addressed.

-- 
Sakari Ailus
e-mail: sakari.ailus at iki.fi


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