diff options
Diffstat (limited to 'src/ipa/ipu3/ipu3_agc.cpp')
| -rw-r--r-- | src/ipa/ipu3/ipu3_agc.cpp | 19 |
1 files changed, 10 insertions, 9 deletions
diff --git a/src/ipa/ipu3/ipu3_agc.cpp b/src/ipa/ipu3/ipu3_agc.cpp index 8ca95013..c476a60d 100644 --- a/src/ipa/ipu3/ipu3_agc.cpp +++ b/src/ipa/ipu3/ipu3_agc.cpp @@ -19,6 +19,8 @@ namespace libcamera { +using namespace std::literals::chrono_literals; + namespace ipa::ipu3 { LOG_DEFINE_CATEGORY(IPU3Agc) @@ -51,9 +53,9 @@ static constexpr uint8_t kCellSize = 8; IPU3Agc::IPU3Agc() : frameCount_(0), lastFrame_(0), converged_(false), updateControls_(false), iqMean_(0.0), gamma_(1.0), - lineDuration_(0.0), maxExposureTime_(0.0), - prevExposure_(0.0), prevExposureNoDg_(0.0), - currentExposure_(0.0), currentExposureNoDg_(0.0) + lineDuration_(0s), maxExposureTime_(0s), + prevExposure_(0s), prevExposureNoDg_(0s), + currentExposure_(0s), currentExposureNoDg_(0s) { } @@ -61,8 +63,7 @@ void IPU3Agc::initialise(struct ipu3_uapi_grid_config &bdsGrid, const IPACameraS { aeGrid_ = bdsGrid; - /* line duration in microseconds */ - lineDuration_ = sensorInfo.lineLength * 1000000ULL / static_cast<double>(sensorInfo.pixelRate); + lineDuration_ = sensorInfo.lineLength * 1.0s / sensorInfo.pixelRate; maxExposureTime_ = kMaxExposure * lineDuration_; } @@ -113,7 +114,7 @@ void IPU3Agc::processBrightness(const ipu3_uapi_stats_3a *stats) void IPU3Agc::filterExposure() { double speed = 0.2; - if (prevExposure_ == 0.0) { + if (prevExposure_ == 0s) { /* DG stands for digital gain.*/ prevExposure_ = currentExposure_; prevExposureNoDg_ = currentExposureNoDg_; @@ -162,20 +163,20 @@ void IPU3Agc::lockExposureGain(uint32_t &exposure, uint32_t &gain) double newGain = kEvGainTarget * knumHistogramBins / iqMean_; /* extracted from Rpi::Agc::computeTargetExposure */ - double currentShutter = exposure * lineDuration_; + libcamera::utils::Duration currentShutter = exposure * lineDuration_; currentExposureNoDg_ = currentShutter * gain; LOG(IPU3Agc, Debug) << "Actual total exposure " << currentExposureNoDg_ << " Shutter speed " << currentShutter << " Gain " << gain; currentExposure_ = currentExposureNoDg_ * newGain; - double maxTotalExposure = maxExposureTime_ * kMaxGain; + libcamera::utils::Duration maxTotalExposure = maxExposureTime_ * kMaxGain; currentExposure_ = std::min(currentExposure_, maxTotalExposure); LOG(IPU3Agc, Debug) << "Target total exposure " << currentExposure_; /* \todo: estimate if we need to desaturate */ filterExposure(); - double newExposure = 0.0; + libcamera::utils::Duration newExposure = 0.0s; if (currentShutter < maxExposureTime_) { exposure = std::clamp(static_cast<uint32_t>(exposure * currentExposure_ / currentExposureNoDg_), kMinExposure, kMaxExposure); newExposure = currentExposure_ / exposure; |