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ipa: raspberrypi: awb: Add GetConvergenceFrames method to AWB base class

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We add a GetConvergenceFrames method to the AwbAlgorithm class which
can be called when the AWB is started from scratch. It suggests how
many frames should be dropped before displaying any (while the AWB
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 20:44:38 +00:00 • committed by Laurent Pinchart
parent 748f48a006
commit dbcf4d8247
3 changed files with 14 additions and 0 deletions
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11
src/ipa/raspberrypi/controller/rpi/awb.cpp
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@ -59,6 +59,7 @@ void AwbConfig::Read(boost::property_tree::ptree const &params)
bayes = params.get<int>("bayes", 1);
frame_period = params.get<uint16_t>("frame_period", 10);
startup_frames = params.get<uint16_t>("startup_frames", 10);
convergence_frames = params.get<unsigned int>("convergence_frames", 3);
speed = params.get<double>("speed", 0.05);
if (params.get_child_optional("ct_curve"))
read_ct_curve(ct_r, ct_b, params.get_child("ct_curve"));
@ -165,6 +166,16 @@ void Awb::Initialise()
prev_sync_results_ = sync_results_;
}
unsigned int Awb::GetConvergenceFrames() const
{
// If colour gains have been explicitly set, there is no convergence
// to happen, so no need to drop any frames - return zero.
if (manual_r_ && manual_b_)
return 0;
else
return config_.convergence_frames;
}
void Awb::SetMode(std::string const &mode_name)
{
std::unique_lock<std::mutex> lock(settings_mutex_);