diff options
| -rw-r--r-- | src/ipa/ipu3/algorithms/agc.cpp | 19 | ||||
| -rw-r--r-- | src/ipa/ipu3/algorithms/agc.h | 2 | ||||
| -rw-r--r-- | src/ipa/ipu3/ipa_context.cpp | 11 | ||||
| -rw-r--r-- | src/ipa/ipu3/ipa_context.h | 5 | ||||
| -rw-r--r-- | src/ipa/ipu3/ipu3.cpp | 3 |
5 files changed, 30 insertions, 10 deletions
diff --git a/src/ipa/ipu3/algorithms/agc.cpp b/src/ipa/ipu3/algorithms/agc.cpp index b5d736c1..5723f6f3 100644 --- a/src/ipa/ipu3/algorithms/agc.cpp +++ b/src/ipa/ipu3/algorithms/agc.cpp @@ -169,10 +169,9 @@ void Agc::filterExposure() /** * \brief Estimate the new exposure and gain values - * \param[inout] exposure The exposure value reference as a number of lines - * \param[inout] gain The gain reference to be updated + * \param[inout] frameContext The shared IPA frame Context */ -void Agc::computeExposure(uint32_t &exposure, double &analogueGain) +void Agc::computeExposure(IPAFrameContext &frameContext) { /* Algorithm initialization should wait for first valid frames */ /* \todo - have a number of frames given by DelayedControls ? @@ -189,6 +188,10 @@ void Agc::computeExposure(uint32_t &exposure, double &analogueGain) return; } + /* Get the effective exposure and gain applied on the sensor. */ + uint32_t exposure = frameContext.sensor.exposure; + double analogueGain = frameContext.sensor.gain; + /* Estimate the gain needed to have the proportion wanted */ double evGain = kEvGainTarget * knumHistogramBins / iqMean_; @@ -233,8 +236,9 @@ void Agc::computeExposure(uint32_t &exposure, double &analogueGain) << shutterTime << " and " << stepGain; - exposure = shutterTime / lineDuration_; - analogueGain = stepGain; + /* Update the estimated exposure and gain. */ + frameContext.agc.exposure = shutterTime / lineDuration_; + frameContext.agc.gain = stepGain; /* * Update the exposure value for the next process call. @@ -257,11 +261,8 @@ void Agc::computeExposure(uint32_t &exposure, double &analogueGain) */ void Agc::process(IPAContext &context, const ipu3_uapi_stats_3a *stats) { - /* Get the latest exposure and gain applied */ - uint32_t &exposure = context.frameContext.agc.exposure; - double &analogueGain = context.frameContext.agc.gain; measureBrightness(stats, context.configuration.grid.bdsGrid); - computeExposure(exposure, analogueGain); + computeExposure(context.frameContext); frameCount_++; } diff --git a/src/ipa/ipu3/algorithms/agc.h b/src/ipa/ipu3/algorithms/agc.h index 69e0b831..f0db25ee 100644 --- a/src/ipa/ipu3/algorithms/agc.h +++ b/src/ipa/ipu3/algorithms/agc.h @@ -34,7 +34,7 @@ private: void measureBrightness(const ipu3_uapi_stats_3a *stats, const ipu3_uapi_grid_config &grid); void filterExposure(); - void computeExposure(uint32_t &exposure, double &gain); + void computeExposure(IPAFrameContext &frameContext); uint64_t frameCount_; uint64_t lastFrame_; diff --git a/src/ipa/ipu3/ipa_context.cpp b/src/ipa/ipu3/ipa_context.cpp index 2355a9c7..a7ff957d 100644 --- a/src/ipa/ipu3/ipa_context.cpp +++ b/src/ipa/ipu3/ipa_context.cpp @@ -120,6 +120,17 @@ namespace libcamera::ipa::ipu3 { */ /** + * \var IPAFrameContext::sensor + * \brief Effective sensor values + * + * \var IPAFrameContext::sensor.exposure + * \brief Exposure time expressed as a number of lines + * + * \var IPAFrameContext::sensor.gain + * \brief Analogue gain multiplier + */ + +/** * \var IPAFrameContext::toneMapping * \brief Context for ToneMapping and Gamma control * diff --git a/src/ipa/ipu3/ipa_context.h b/src/ipa/ipu3/ipa_context.h index 1e46c61a..a5a19800 100644 --- a/src/ipa/ipu3/ipa_context.h +++ b/src/ipa/ipu3/ipa_context.h @@ -48,6 +48,11 @@ struct IPAFrameContext { } awb; struct { + uint32_t exposure; + double gain; + } sensor; + + struct { double gamma; struct ipu3_uapi_gamma_corr_lut gammaCorrection; } toneMapping; diff --git a/src/ipa/ipu3/ipu3.cpp b/src/ipa/ipu3/ipu3.cpp index bcc3863b..38e86e58 100644 --- a/src/ipa/ipu3/ipu3.cpp +++ b/src/ipa/ipu3/ipu3.cpp @@ -549,6 +549,9 @@ void IPAIPU3::processEvent(const IPU3Event &event) const ipu3_uapi_stats_3a *stats = reinterpret_cast<ipu3_uapi_stats_3a *>(mem.data()); + context_.frameContext.sensor.exposure = event.sensorControls.get(V4L2_CID_EXPOSURE).get<int32_t>(); + context_.frameContext.sensor.gain = camHelper_->gain(event.sensorControls.get(V4L2_CID_ANALOGUE_GAIN).get<int32_t>()); + parseStatistics(event.frame, event.frameTimestamp, stats); break; } |