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authorNaushir Patuck <naush@raspberrypi.com>2022-11-15 09:07:55 +0000
committerLaurent Pinchart <laurent.pinchart@ideasonboard.com>2022-11-29 17:16:54 +0200
commitac42f9278e9bd2c9e60f87322bf431a7c8a6c2c9 (patch)
treea100a6162226b16056baef5ba14ba4bc25fa112c /src/ipa/libipa/histogram.h
parent546154b134338c4261885796f95d802c1f65520e (diff)
ipa: raspberrypi: agc: Fix digital gain calculation for manual mode
The digital gain calculation uses a total exposure value computed with the current AGC state. However, this is wrong in the case of manual shutter/gain controls, as the total exposure value used must be the value computed when the AGC sent the manual shutter/gain controls to the pipeline handler to action. To fix this, the IPA now adds the historical AgcStatus structure to the metadata (tagged with "agc.delayed_status"). This historical AgcStatus structure contains the total exposure value calculated when the AGC sent the manual shutter/gain controls to the pipeline handler. 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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