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authorNaushir Patuck <naush@raspberrypi.com>2022-11-15 09:07:53 +0000
committerLaurent Pinchart <laurent.pinchart@ideasonboard.com>2022-11-29 17:16:49 +0200
commit44cffefd60822181851efbd8b1372988787b8119 (patch)
treecaf1f484a8139fc801926296d2945ea4135e450c /src/ipa/raspberrypi/controller/rpi/alsc.cpp
parent087f0c3c42d3f350c193f03e6141f16b6f41f70c (diff)
ipa: raspberrypi: Use an array of RPiController::Metadata objects
Allow the IPA to cycle through an array of RPiController::Metadata objects, one per prepare()/process() invocation, when running the controller algorithms. This allows historical metadata objects to be retained, and subsequently passed into the controller algorithms on future frames. At present, only a single index into this array is used. This change provides a route to fixing a problem with the AGC algorithm, where if a manual shutter/gain is requested, the algorithm does not currently retain any context of the total exposure that it has calculated. As a result, the wrong digital gain would be applied when the frame with the manual shutter/gain is processed by the ISP. Signed-off-by: Naushir Patuck <naush@raspberrypi.com> Reviewed-by: David Plowman <david.plowman@raspberrypi.com> Tested-by: David Plowman <david.plowman@raspberrypi.com> Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com> Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
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