Convert it to ReST and add it to media/v4l-drivers book.
Signed-off-by: Mauro Carvalho Chehab <mche...@s-opensource.com>
---
Documentation/media/v4l-drivers/index.rst | 1 +
.../media/v4l-drivers/sh_mobile_ceu_camera.rst | 57 +++++++++++-----------
2 files changed, 30 insertions(+), 28 deletions(-)
diff --git a/Documentation/media/v4l-drivers/index.rst
b/Documentation/media/v4l-drivers/index.rst
index f761627d3fa1..64556192f12a 100644
--- a/Documentation/media/v4l-drivers/index.rst
+++ b/Documentation/media/v4l-drivers/index.rst
@@ -34,4 +34,5 @@ License".
pxa_camera
radiotrack
saa7134
+ sh_mobile_ceu_camera
zr364xx
diff --git a/Documentation/media/v4l-drivers/sh_mobile_ceu_camera.rst
b/Documentation/media/v4l-drivers/sh_mobile_ceu_camera.rst
index 1e96ce6e2d2f..e40ffea7708c 100644
--- a/Documentation/media/v4l-drivers/sh_mobile_ceu_camera.rst
+++ b/Documentation/media/v4l-drivers/sh_mobile_ceu_camera.rst
@@ -1,5 +1,7 @@
- Cropping and Scaling algorithm, used in the sh_mobile_ceu_camera driver
- =======================================================================
+Cropping and Scaling algorithm, used in the sh_mobile_ceu_camera driver
+=======================================================================
+
+Author: Guennadi Liakhovetski <g.liakhovet...@gmx.de>
Terminology
-----------
@@ -12,29 +14,31 @@ combined scales: sensor_scale * host_scale
Generic scaling / cropping scheme
---------------------------------
--1--
-|
--2-- -\
-| --\
-| --\
-+-5-- . -- -3-- -\
-| `... -\
-| `... -4-- . - -7..
-| `.
-| `. .6--
-|
-| . .6'-
-| .??
-| ... -4'- .??
-| ...?? - -7'.
-+-5'- .?? -/
-| -- -3'- -/
-| --/
-| --/
--2'- -/
-|
-|
--1'-
+.. code-block:: none
+
+ -1--
+ |
+ -2-- -\
+ | --\
+ | --\
+ +-5-- . -- -3-- -\
+ | `... -\
+ | `... -4-- . - -7..
+ | `.
+ | `. .6--
+ |
+ | . .6'-
+ | .??
+ | ... -4'- .??
+ | ...?? - -7'.
+ +-5'- .?? -/
+ | -- -3'- -/
+ | --/
+ | --/
+ -2'- -/
+ |
+ |
+ -1'-
In the above chart minuses and slashes represent "real" data amounts, points
and
accents represent "useful" data, basically, CEU scaled and cropped output,
@@ -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.liakhovet...@gmx.de>
--
2.7.4
--
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