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-rw-r--r--src/ipa/ipu3/ipa_context.h5
-rw-r--r--src/ipa/ipu3/ipu3.cpp41
-rw-r--r--src/ipa/ipu3/ipu3_agc.cpp24
-rw-r--r--src/ipa/ipu3/ipu3_agc.h9
4 files changed, 45 insertions, 34 deletions
diff --git a/src/ipa/ipu3/ipa_context.h b/src/ipa/ipu3/ipa_context.h
index 24dd8bf7..9d9444dc 100644
--- a/src/ipa/ipu3/ipa_context.h
+++ b/src/ipa/ipu3/ipa_context.h
@@ -25,6 +25,11 @@ struct IPASessionConfiguration {
struct IPAFrameContext {
struct {
+ uint32_t exposure;
+ double gain;
+ } agc;
+
+ struct {
struct {
double red;
double green;
diff --git a/src/ipa/ipu3/ipu3.cpp b/src/ipa/ipu3/ipu3.cpp
index 823df34b..2468e94a 100644
--- a/src/ipa/ipu3/ipu3.cpp
+++ b/src/ipa/ipu3/ipu3.cpp
@@ -93,6 +93,22 @@
*/
/**
+ * \struct IPAFrameContext::agc
+ * \brief Context for the Automatic Gain Control algorithm
+ *
+ * The exposure and gain determined are expected to be applied to the sensor
+ * at the earliest opportunity.
+ *
+ * \var IPAFrameContext::agc::exposure
+ * \brief Exposure time expressed as a number of lines
+ *
+ * \var IPAFrameContext::agc::gain
+ * \brief Analogue gain multiplier
+ *
+ * The gain should be adapted to the sensor specific gain code before applying.
+ */
+
+/**
* \struct IPAFrameContext::awb
* \brief Context for the Automatic White Balance algorithm
*
@@ -183,7 +199,6 @@ private:
/* Local parameter storage */
struct IPAContext context_;
- struct ipu3_uapi_params params_;
};
/**
@@ -361,8 +376,7 @@ int IPAIPU3::configure(const IPAConfigInfo &configInfo)
defVBlank_ = itVBlank->second.def().get<int32_t>();
- /* Clean context and IPU3 parameters at configuration */
- params_ = {};
+ /* Clean context at configuration */
context_ = {};
calculateBdsGrid(configInfo.bdsOutputSize);
@@ -375,7 +389,7 @@ int IPAIPU3::configure(const IPAConfigInfo &configInfo)
awbAlgo_ = std::make_unique<IPU3Awb>();
agcAlgo_ = std::make_unique<IPU3Agc>();
- agcAlgo_->initialise(context_.configuration.grid.bdsGrid, sensorInfo_);
+ agcAlgo_->configure(context_, configInfo);
return 0;
}
@@ -450,12 +464,9 @@ void IPAIPU3::processControls([[maybe_unused]] unsigned int frame,
void IPAIPU3::fillParams(unsigned int frame, ipu3_uapi_params *params)
{
for (auto const &algo : algorithms_)
- algo->prepare(context_, &params_);
-
- if (agcAlgo_->updateControls())
- awbAlgo_->prepare(context_, &params_);
+ algo->prepare(context_, params);
- *params = params_;
+ awbAlgo_->prepare(context_, params);
IPU3Action op;
op.op = ActionParamFilled;
@@ -472,14 +483,16 @@ void IPAIPU3::parseStatistics(unsigned int frame,
for (auto const &algo : algorithms_)
algo->process(context_, stats);
- double gain = camHelper_->gain(gain_);
- agcAlgo_->process(stats, exposure_, gain);
- gain_ = camHelper_->gainCode(gain);
+ /* \todo These fields should not be written by the IPAIPU3 layer */
+ context_.frameContext.agc.gain = camHelper_->gain(gain_);
+ context_.frameContext.agc.exposure = exposure_;
+ agcAlgo_->process(context_, stats);
+ exposure_ = context_.frameContext.agc.exposure;
+ gain_ = camHelper_->gainCode(context_.frameContext.agc.gain);
awbAlgo_->process(context_, stats);
- if (agcAlgo_->updateControls())
- setControls(frame);
+ setControls(frame);
/* \todo Use VBlank value calculated from each frame exposure. */
int64_t frameDuration = sensorInfo_.lineLength * (defVBlank_ + sensorInfo_.outputSize.height) /
diff --git a/src/ipa/ipu3/ipu3_agc.cpp b/src/ipa/ipu3/ipu3_agc.cpp
index 20c2d3b4..1c156b89 100644
--- a/src/ipa/ipu3/ipu3_agc.cpp
+++ b/src/ipa/ipu3/ipu3_agc.cpp
@@ -51,20 +51,21 @@ static constexpr double kEvGainTarget = 0.5;
static constexpr uint8_t kCellSize = 8;
IPU3Agc::IPU3Agc()
- : frameCount_(0), lastFrame_(0), converged_(false),
- updateControls_(false), iqMean_(0.0),
- lineDuration_(0s), maxExposureTime_(0s),
- prevExposure_(0s), prevExposureNoDg_(0s),
+ : frameCount_(0), lastFrame_(0), iqMean_(0.0), lineDuration_(0s),
+ maxExposureTime_(0s), prevExposure_(0s), prevExposureNoDg_(0s),
currentExposure_(0s), currentExposureNoDg_(0s)
{
}
-void IPU3Agc::initialise(struct ipu3_uapi_grid_config &bdsGrid, const IPACameraSensorInfo &sensorInfo)
+int IPU3Agc::configure(IPAContext &context, const IPAConfigInfo &configInfo)
{
- aeGrid_ = bdsGrid;
+ aeGrid_ = context.configuration.grid.bdsGrid;
- lineDuration_ = sensorInfo.lineLength * 1.0s / sensorInfo.pixelRate;
+ lineDuration_ = configInfo.sensorInfo.lineLength * 1.0s
+ / configInfo.sensorInfo.pixelRate;
maxExposureTime_ = kMaxExposure * lineDuration_;
+
+ return 0;
}
void IPU3Agc::processBrightness(const ipu3_uapi_stats_3a *stats)
@@ -144,8 +145,6 @@ void IPU3Agc::filterExposure()
void IPU3Agc::lockExposureGain(uint32_t &exposure, double &gain)
{
- updateControls_ = false;
-
/* Algorithm initialization should wait for first valid frames */
/* \todo - have a number of frames given by DelayedControls ?
* - implement a function for IIR */
@@ -155,7 +154,6 @@ void IPU3Agc::lockExposureGain(uint32_t &exposure, double &gain)
/* Are we correctly exposed ? */
if (std::abs(iqMean_ - kEvGainTarget * knumHistogramBins) <= 1) {
LOG(IPU3Agc, Debug) << "!!! Good exposure with iqMean = " << iqMean_;
- converged_ = true;
} else {
double newGain = kEvGainTarget * knumHistogramBins / iqMean_;
@@ -178,20 +176,20 @@ void IPU3Agc::lockExposureGain(uint32_t &exposure, double &gain)
exposure = std::clamp(static_cast<uint32_t>(exposure * currentExposure_ / currentExposureNoDg_), kMinExposure, kMaxExposure);
newExposure = currentExposure_ / exposure;
gain = std::clamp(static_cast<uint32_t>(gain * currentExposure_ / newExposure), kMinGain, kMaxGain);
- updateControls_ = true;
} else if (currentShutter >= maxExposureTime_) {
gain = std::clamp(static_cast<uint32_t>(gain * currentExposure_ / currentExposureNoDg_), kMinGain, kMaxGain);
newExposure = currentExposure_ / gain;
exposure = std::clamp(static_cast<uint32_t>(exposure * currentExposure_ / newExposure), kMinExposure, kMaxExposure);
- updateControls_ = true;
}
LOG(IPU3Agc, Debug) << "Adjust exposure " << exposure * lineDuration_ << " and gain " << gain;
}
lastFrame_ = frameCount_;
}
-void IPU3Agc::process(const ipu3_uapi_stats_3a *stats, uint32_t &exposure, double &gain)
+void IPU3Agc::process(IPAContext &context, const ipu3_uapi_stats_3a *stats)
{
+ uint32_t &exposure = context.frameContext.agc.exposure;
+ double &gain = context.frameContext.agc.gain;
processBrightness(stats);
lockExposureGain(exposure, gain);
frameCount_++;
diff --git a/src/ipa/ipu3/ipu3_agc.h b/src/ipa/ipu3/ipu3_agc.h
index 2d86127d..0e922664 100644
--- a/src/ipa/ipu3/ipu3_agc.h
+++ b/src/ipa/ipu3/ipu3_agc.h
@@ -29,10 +29,8 @@ public:
IPU3Agc();
~IPU3Agc() = default;
- void initialise(struct ipu3_uapi_grid_config &bdsGrid, const IPACameraSensorInfo &sensorInfo);
- void process(const ipu3_uapi_stats_3a *stats, uint32_t &exposure, double &gain);
- bool converged() { return converged_; }
- bool updateControls() { return updateControls_; }
+ int configure(IPAContext &context, const IPAConfigInfo &configInfo) override;
+ void process(IPAContext &context, const ipu3_uapi_stats_3a *stats) override;
private:
void processBrightness(const ipu3_uapi_stats_3a *stats);
@@ -44,9 +42,6 @@ private:
uint64_t frameCount_;
uint64_t lastFrame_;
- bool converged_;
- bool updateControls_;
-
double iqMean_;
Duration lineDuration_;
generated by cgit v1.2.1 (git 2.18.0) at 2024-11-10 20:58:36 +0000