[PATCH 0/3] Add flicker mitigation controls to AgcMeanLuminance

[Daniel Scally]

Hello all

This short series adds flicker mitigation controls to each IPA that derives its
AGC algorithm from AgcMeanLuminance. The mitigation works by adding
AeFlickerMode and AeFlickerPeriod controls to AgcMeanLuminance - with the mode
set to FlickerManual exposure time is capped at a multiple of AeFlickerPeriod,
with the reduction in exposure time offset by increases to analogue and digital
gain.

The first patch is purely to make patch #3 slightly tidier; we have to add the
new function call to the algorithms queueRequest() function in the same commit
as introducing the new controls or we end up with a commit where the IPAs are
advertising a control they don't actually support.

Thanks
Dan

Daniel Scally (3):
  ipa: ipu3: Add skeleton Agc::queueRequest() function
  ipa: libipa: Adjust for flicker in ExposureModeHelper
  ipa: libipa: Add flicker controls to AgcMeanLuminance

 src/ipa/ipu3/algorithms/agc.cpp         | 11 ++++++
 src/ipa/ipu3/algorithms/agc.h           |  3 ++
 src/ipa/libipa/agc_mean_luminance.cpp   | 47 ++++++++++++++++++++++++-
 src/ipa/libipa/agc_mean_luminance.h     |  5 +++
 src/ipa/libipa/exposure_mode_helper.cpp | 20 ++++++++++-
 src/ipa/libipa/exposure_mode_helper.h   |  2 +-
 src/ipa/mali-c55/algorithms/agc.cpp     |  2 ++
 src/ipa/rkisp1/algorithms/agc.cpp       |  2 ++
 8 files changed, 89 insertions(+), 3 deletions(-)

-- 
2.34.1