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libcamera: Add a SensorSensitivity property

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The SensorSensitivity property is a scaling factor that describes how sensitive
the selected sensor mode is compared to other readout modes of the same sensor.
For example, a binned mode might have twice the sensitivity of the full
resolution mode, meaning you would get double the signal level for the same
exposure and gains.

Signed-off-by: David Plowman <david.plowman@raspberrypi.com>
Signed-off-by: Naushir Patuck <naush@raspberrypi.com>
Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
Reviewed-by: Jacopo Mondi <jacopo@jmondi.org>
Signed-off-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
This commit is contained in:
Naushir Patuck
2022-04-21 16:11:16 +01:00
committed by Kieran Bingham
parent 74ba01121a
commit 998d23c0a2
1 changed files with 12 additions and 0 deletions
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src/libcamera/property_ids.yaml
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@@ -678,6 +678,18 @@ controls:
\todo Turn this property into a "maximum control value" for the
ScalerCrop control once "dynamic" controls have been implemented.
- SensorSensitivity:
type: float
description: |
The relative sensitivity of the chosen sensor mode.
Some sensors have readout modes with different sensitivities. For example,
a binned camera mode might, with the same exposure and gains, produce
twice the signal level of the full resolution readout. This would be
signalled by the binned mode, when it is chosen, indicating a value here
that is twice that of the full resolution mode. This value will be valid
after the configure method has returned successfully.
# ----------------------------------------------------------------------------
# Draft properties section