diff options
Diffstat (limited to 'src/ipa')
| -rw-r--r-- | src/ipa/rkisp1/algorithms/agc.cpp | 6 |
1 files changed, 5 insertions, 1 deletions
diff --git a/src/ipa/rkisp1/algorithms/agc.cpp b/src/ipa/rkisp1/algorithms/agc.cpp index a4e5500e..e5aeb342 100644 --- a/src/ipa/rkisp1/algorithms/agc.cpp +++ b/src/ipa/rkisp1/algorithms/agc.cpp @@ -36,6 +36,9 @@ namespace ipa::rkisp1::algorithms { LOG_DEFINE_CATEGORY(RkISP1Agc) +/* Minimum limit for analogue gain value */ +static constexpr double kMinAnalogueGain = 1.0; + /* \todo Honour the FrameDurationLimits control instead of hardcoding a limit */ static constexpr utils::Duration kMaxShutterSpeed = 60ms; @@ -254,7 +257,8 @@ void Agc::computeExposure(IPAContext &context, IPAFrameContext &frameContext, utils::Duration maxShutterSpeed = std::min(configuration.sensor.maxShutterSpeed, kMaxShutterSpeed); - double minAnalogueGain = configuration.sensor.minAnalogueGain; + double minAnalogueGain = std::max(configuration.sensor.minAnalogueGain, + kMinAnalogueGain); double maxAnalogueGain = configuration.sensor.maxAnalogueGain; /* Consider within 1% of the target as correctly exposed. */ |