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Commit 9cbfcd7c authored by Mauro Carvalho Chehab's avatar Mauro Carvalho Chehab
Browse files

[media] doc-rst: add sh_mobile_ceu_camera crop documentation 



Convert it to ReST and add it to media/v4l-drivers book.

Signed-off-by: default avatarMauro Carvalho Chehab <mchehab@s-opensource.com>
parent ae9d2873

Documentation/media/v4l-drivers/index.rst

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@@ -34,4 +34,5 @@ License". 
	pxa_camera

	radiotrack

	saa7134

	sh_mobile_ceu_camera

	zr364xx

Documentation/media/v4l-drivers/sh_mobile_ceu_camera.rst

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Cropping and Scaling algorithm, used in the sh_mobile_ceu_camera driver

=======================================================================



Author: Guennadi Liakhovetski <g.liakhovetski@gmx.de>



Terminology

-----------
@@ -12,6 +14,8 @@ combined scales: sensor_scale * host_scale 
Generic scaling / cropping scheme

---------------------------------



.. code-block:: none



	-1--

	|

	-2-- -\
@@ -134,6 +138,3 @@ Cropping is performed in the following 6 steps: 
5. Calculate and apply host scale = (6' - 6) / (4' - 4)



6. Calculate and apply host crop: 6 - 7 = (5 - 2) * (6' - 6) / (5' - 5)
 


--

Author: Guennadi Liakhovetski <g.liakhovetski@gmx.de>