diff options
Diffstat (limited to 'src/ipa')
| -rw-r--r-- | src/ipa/ipu3/algorithms/agc.cpp | 28 | ||||
| -rw-r--r-- | src/ipa/ipu3/algorithms/agc.h | 4 |
2 files changed, 16 insertions, 16 deletions
diff --git a/src/ipa/ipu3/algorithms/agc.cpp b/src/ipa/ipu3/algorithms/agc.cpp index 828e822c..62ea0916 100644 --- a/src/ipa/ipu3/algorithms/agc.cpp +++ b/src/ipa/ipu3/algorithms/agc.cpp @@ -49,7 +49,7 @@ static constexpr double kEvGainTarget = 0.5; Agc::Agc() : frameCount_(0), lastFrame_(0), iqMean_(0.0), lineDuration_(0s), - maxExposureTime_(0s), prevExposure_(0s), prevExposureNoDg_(0s), + maxExposureTime_(0s), filteredExposure_(0s), filteredExposureNoDg_(0s), currentExposure_(0s), currentExposureNoDg_(0s) { } @@ -100,24 +100,24 @@ void Agc::processBrightness(const ipu3_uapi_stats_3a *stats, void Agc::filterExposure() { double speed = 0.2; - if (prevExposure_ == 0s) { + if (filteredExposure_ == 0s) { /* DG stands for digital gain.*/ - prevExposure_ = currentExposure_; - prevExposureNoDg_ = currentExposureNoDg_; + filteredExposure_ = currentExposure_; + filteredExposureNoDg_ = currentExposureNoDg_; } else { /* * If we are close to the desired result, go faster to avoid making * multiple micro-adjustments. * \ todo: Make this customisable? */ - if (prevExposure_ < 1.2 * currentExposure_ && - prevExposure_ > 0.8 * currentExposure_) + if (filteredExposure_ < 1.2 * currentExposure_ && + filteredExposure_ > 0.8 * currentExposure_) speed = sqrt(speed); - prevExposure_ = speed * currentExposure_ + - prevExposure_ * (1.0 - speed); - prevExposureNoDg_ = speed * currentExposureNoDg_ + - prevExposureNoDg_ * (1.0 - speed); + filteredExposure_ = speed * currentExposure_ + + filteredExposure_ * (1.0 - speed); + filteredExposureNoDg_ = speed * currentExposureNoDg_ + + filteredExposureNoDg_ * (1.0 - speed); } /* * We can't let the no_dg exposure deviate too far below the @@ -125,10 +125,10 @@ void Agc::filterExposure() * in the ISP to hide it (which will cause nasty oscillation). */ double fastReduceThreshold = 0.4; - if (prevExposureNoDg_ < - prevExposure_ * fastReduceThreshold) - prevExposureNoDg_ = prevExposure_ * fastReduceThreshold; - LOG(IPU3Agc, Debug) << "After filtering, total_exposure " << prevExposure_; + if (filteredExposureNoDg_ < + filteredExposure_ * fastReduceThreshold) + filteredExposureNoDg_ = filteredExposure_ * fastReduceThreshold; + LOG(IPU3Agc, Debug) << "After filtering, total_exposure " << filteredExposure_; } void Agc::lockExposureGain(uint32_t &exposure, double &gain) diff --git a/src/ipa/ipu3/algorithms/agc.h b/src/ipa/ipu3/algorithms/agc.h index e0c315fc..16b9fa0a 100644 --- a/src/ipa/ipu3/algorithms/agc.h +++ b/src/ipa/ipu3/algorithms/agc.h @@ -44,8 +44,8 @@ private: utils::Duration lineDuration_; utils::Duration maxExposureTime_; - utils::Duration prevExposure_; - utils::Duration prevExposureNoDg_; + utils::Duration filteredExposure_; + utils::Duration filteredExposureNoDg_; utils::Duration currentExposure_; utils::Duration currentExposureNoDg_; |