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ipa: raspberrypi: agc: Add GetConvergenceFrames method to AGC base class

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We add a GetConvergenceFrames method to the AgcAlgorithm class which
can be called when the AGC is started from scratch. It suggests how
many frames should be dropped before displaying any (while the AGC
converges).

The Raspberry Pi specific implementation makes this customisable from
the tuning file.

Signed-off-by: David Plowman <david.plowman@raspberrypi.com>
Reviewed-by: Naushir Patuck <naush@raspberrypi.com>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
This commit is contained in:
David Plowman
2020-12-08 20:44:37 +00:00
committed by Laurent Pinchart
parent 10bcc51ca3
commit 748f48a006
3 changed files with 14 additions and 0 deletions
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src/ipa/raspberrypi/controller/agc_algorithm.hpp
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@@ -15,6 +15,7 @@ class AgcAlgorithm : public Algorithm
public:
AgcAlgorithm(Controller *controller) : Algorithm(controller) {}
// An AGC algorithm must provide the following:
virtual unsigned int GetConvergenceFrames() const = 0;
virtual void SetEv(double ev) = 0;
virtual void SetFlickerPeriod(double flicker_period) = 0;
virtual void SetFixedShutter(double fixed_shutter) = 0; // microseconds