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| author | David Plowman <david.plowman@raspberrypi.com> | 2020-11-26 14:50:04 +0000 |
|---|---|---|
| committer | Laurent Pinchart <laurent.pinchart@ideasonboard.com> | 2020-12-20 05:00:00 +0200 |
| commit | b4d21c62d1957530ca197cfcbb65370a1415cc33 (patch) | |
| tree | a50b0a4b5fb1556c750a6ae555ffeda094411183 | |
| parent | bcbd9fed8f941a808090792066afe014610a971a (diff) | |
libcamera: controls: Add DigitalGain control
This control reports the global digital gain applied by the pipeline
as a whole, after capturing a raw image from the sensor.
Signed-off-by: David Plowman <david.plowman@raspberrypi.com>
Reviewed-by: Jacopo Mondi <jacopo@jmondi.org>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
| -rw-r--r-- | src/libcamera/control_ids.yaml | 17 |
1 files changed, 17 insertions, 0 deletions
diff --git a/src/libcamera/control_ids.yaml b/src/libcamera/control_ids.yaml index 6d6f0fee..3c5f4469 100644 --- a/src/libcamera/control_ids.yaml +++ b/src/libcamera/control_ids.yaml @@ -306,6 +306,23 @@ controls: maximum valid value is given by the properties::ScalerCropMaximum property, and the two can be used to implement digital zoom. + - DigitalGain: + type: float + description: | + Digital gain value applied during the processing steps applied + to the image as captured from the sensor. + + The global digital gain factor is applied to all the colour channels + of the RAW image. Different pipeline models are free to + specify how the global gain factor applies to each separate + channel. + + If an imaging pipeline applies digital gain in distinct + processing steps, this value indicates their total sum. + Pipelines are free to decide how to adjust each processing + step to respect the received gain factor and shall report + their total value in the request metadata. + # ---------------------------------------------------------------------------- # Draft controls section |