[libcamera-devel] [PATCH v2 4/4] ipa: rkisp1: add FrameDurationLimits control

Laurent Pinchart laurent.pinchart at ideasonboard.com
Wed Nov 23 15:39:02 CET 2022


Hello Nicholas and Jacopo,

Thank you for the patch.

On Wed, Nov 23, 2022 at 02:43:46PM +0100, Jacopo Mondi via libcamera-devel wrote:
> From: Nicholas Roth <nicholas at rothemail.net>
> 
> Currently, the Android HAL does not work on rkisp1-based devices because
> required FrameDurationLimits metadata is missing from the IPA
> implementation.
> 
> This change sets FrameDurationLimits for rkisp1 based on the existing
> ipu3 implementation, using the sensor's reported range of vertical
> blanking intervals with the minimum reported horizontal blanking
> interval.
> 
> Signed-off-by: Nicholas Roth <nicholas at rothemail.net>
> Signed-off-by: Jacopo Mondi <jacopo at jmondi.org>

Reviewed-by: Laurent Pinchart <laurent.pinchart at ideasonboard.com>

> ---
>  include/libcamera/ipa/rkisp1.mojom       |  6 ++-
>  src/ipa/rkisp1/rkisp1.cpp                | 57 +++++++++++++++++++++---
>  src/libcamera/pipeline/rkisp1/rkisp1.cpp | 17 ++++---
>  3 files changed, 67 insertions(+), 13 deletions(-)
> 
> diff --git a/include/libcamera/ipa/rkisp1.mojom b/include/libcamera/ipa/rkisp1.mojom
> index 36bf291e8a51..1009e970a1b5 100644
> --- a/include/libcamera/ipa/rkisp1.mojom
> +++ b/include/libcamera/ipa/rkisp1.mojom
> @@ -15,14 +15,16 @@ struct IPAConfigInfo {
>  
>  interface IPARkISP1Interface {
>  	init(libcamera.IPASettings settings,
> -	     uint32 hwRevision)
> +	     uint32 hwRevision,
> +	     libcamera.IPACameraSensorInfo sensorInfo,
> +	     libcamera.ControlInfoMap sensorControls)
>  		=> (int32 ret, libcamera.ControlInfoMap ipaControls);
>  	start() => (int32 ret);
>  	stop();
>  
>  	configure(IPAConfigInfo configInfo,
>  		  map<uint32, libcamera.IPAStream> streamConfig)
> -		=> (int32 ret);
> +		=> (int32 ret, libcamera.ControlInfoMap ipaControls);
>  
>  	mapBuffers(array<libcamera.IPABuffer> buffers);
>  	unmapBuffers(array<uint32> ids);
> diff --git a/src/ipa/rkisp1/rkisp1.cpp b/src/ipa/rkisp1/rkisp1.cpp
> index a9e144303072..9265d3c9f53c 100644
> --- a/src/ipa/rkisp1/rkisp1.cpp
> +++ b/src/ipa/rkisp1/rkisp1.cpp
> @@ -49,12 +49,15 @@ public:
>  	IPARkISP1();
>  
>  	int init(const IPASettings &settings, unsigned int hwRevision,
> +		 const IPACameraSensorInfo &sensorInfo,
> +		 const ControlInfoMap &sensorControls,
>  		 ControlInfoMap *ipaControls) override;
>  	int start() override;
>  	void stop() override;
>  
>  	int configure(const IPAConfigInfo &ipaConfig,
> -		      const std::map<uint32_t, IPAStream> &streamConfig) override;
> +		      const std::map<uint32_t, IPAStream> &streamConfig,
> +		      ControlInfoMap *ipaControls) override;
>  	void mapBuffers(const std::vector<IPABuffer> &buffers) override;
>  	void unmapBuffers(const std::vector<unsigned int> &ids) override;
>  
> @@ -67,6 +70,9 @@ protected:
>  	std::string logPrefix() const override;
>  
>  private:
> +	void updateControls(const IPACameraSensorInfo &sensorInfo,
> +			    const ControlInfoMap &sensorControls,
> +			    ControlInfoMap *ipaControls);
>  	void setControls(unsigned int frame);
>  
>  	std::map<unsigned int, FrameBuffer> buffers_;
> @@ -114,6 +120,8 @@ std::string IPARkISP1::logPrefix() const
>  }
>  
>  int IPARkISP1::init(const IPASettings &settings, unsigned int hwRevision,
> +		    const IPACameraSensorInfo &sensorInfo,
> +		    const ControlInfoMap &sensorControls,
>  		    ControlInfoMap *ipaControls)
>  {
>  	/* \todo Add support for other revisions */
> @@ -180,9 +188,8 @@ int IPARkISP1::init(const IPASettings &settings, unsigned int hwRevision,
>  	if (ret)
>  		return ret;
>  
> -	/* Return the controls handled by the IPA. */
> -	ControlInfoMap::Map ctrlMap = rkisp1Controls;
> -	*ipaControls = ControlInfoMap(std::move(ctrlMap), controls::controls);
> +	/* Initialize controls. */
> +	updateControls(sensorInfo, sensorControls, ipaControls);
>  
>  	return 0;
>  }
> @@ -200,7 +207,8 @@ void IPARkISP1::stop()
>  }
>  
>  int IPARkISP1::configure(const IPAConfigInfo &ipaConfig,
> -			 [[maybe_unused]] const std::map<uint32_t, IPAStream> &streamConfig)
> +			 [[maybe_unused]] const std::map<uint32_t, IPAStream> &streamConfig,
> +			 ControlInfoMap *ipaControls)
>  {
>  	sensorControls_ = ipaConfig.sensorControls;
>  
> @@ -230,6 +238,9 @@ int IPARkISP1::configure(const IPAConfigInfo &ipaConfig,
>  	context_.configuration.sensor.size = info.outputSize;
>  	context_.configuration.sensor.lineDuration = info.minLineLength * 1.0s / info.pixelRate;
>  
> +	/* Update the camera controls using the new sensor settings. */
> +	updateControls(info, sensorControls_, ipaControls);
> +
>  	/*
>  	 * When the AGC computes the new exposure values for a frame, it needs
>  	 * to know the limits for shutter speed and analogue gain.
> @@ -332,6 +343,42 @@ void IPARkISP1::processStatsBuffer(const uint32_t frame, const uint32_t bufferId
>  	metadataReady.emit(frame, metadata);
>  }
>  
> +void IPARkISP1::updateControls(const IPACameraSensorInfo &sensorInfo,
> +			       const ControlInfoMap &sensorControls,
> +			       ControlInfoMap *ipaControls)
> +{
> +	ControlInfoMap::Map ctrlMap = rkisp1Controls;
> +
> +	/*
> +	 * Compute the frame duration limits.
> +	 *
> +	 * The frame length is computed assuming a fixed line length combined
> +	 * with the vertical frame sizes.
> +	 */
> +	const ControlInfo &v4l2HBlank = sensorControls.find(V4L2_CID_HBLANK)->second;
> +	uint32_t hblank = v4l2HBlank.def().get<int32_t>();
> +	uint32_t lineLength = sensorInfo.outputSize.width + hblank;
> +
> +	const ControlInfo &v4l2VBlank = sensorControls.find(V4L2_CID_VBLANK)->second;
> +	std::array<uint32_t, 3> frameHeights{
> +		v4l2VBlank.min().get<int32_t>() + sensorInfo.outputSize.height,
> +		v4l2VBlank.max().get<int32_t>() + sensorInfo.outputSize.height,
> +		v4l2VBlank.def().get<int32_t>() + sensorInfo.outputSize.height,
> +	};
> +
> +	std::array<int64_t, 3> frameDurations;
> +	for (unsigned int i = 0; i < frameHeights.size(); ++i) {
> +		uint64_t frameSize = lineLength * frameHeights[i];
> +		frameDurations[i] = frameSize / (sensorInfo.pixelRate / 1000000U);
> +	}
> +
> +	ctrlMap[&controls::FrameDurationLimits] = ControlInfo(frameDurations[0],
> +							      frameDurations[1],
> +							      frameDurations[2]);
> +
> +	*ipaControls = ControlInfoMap(std::move(ctrlMap), controls::controls);
> +}
> +
>  void IPARkISP1::setControls(unsigned int frame)
>  {
>  	/*
> diff --git a/src/libcamera/pipeline/rkisp1/rkisp1.cpp b/src/libcamera/pipeline/rkisp1/rkisp1.cpp
> index e946ccc4c930..231b16eca110 100644
> --- a/src/libcamera/pipeline/rkisp1/rkisp1.cpp
> +++ b/src/libcamera/pipeline/rkisp1/rkisp1.cpp
> @@ -347,8 +347,15 @@ int RkISP1CameraData::loadIPA(unsigned int hwRevision)
>  		ipaTuningFile = std::string(configFromEnv);
>  	}
>  
> -	int ret = ipa_->init({ ipaTuningFile, sensor_->model() }, hwRevision,
> -			     &controlInfo_);
> +	IPACameraSensorInfo sensorInfo{};
> +	int ret = sensor_->sensorInfo(&sensorInfo);
> +	if (ret) {
> +		LOG(RkISP1, Error) << "Camera sensor information not available";
> +		return ret;
> +	}
> +
> +	ret = ipa_->init({ ipaTuningFile, sensor_->model() }, hwRevision,
> +			 sensorInfo, sensor_->controls(), &controlInfo_);
>  	if (ret < 0) {
>  		LOG(RkISP1, Error) << "IPA initialization failure";
>  		return ret;
> @@ -718,14 +725,12 @@ int PipelineHandlerRkISP1::configure(Camera *camera, CameraConfiguration *c)
>  	ipa::rkisp1::IPAConfigInfo ipaConfig{};
>  
>  	ret = data->sensor_->sensorInfo(&ipaConfig.sensorInfo);
> -	if (ret) {
> -		LOG(RkISP1, Error) << "Camera sensor information not available";
> +	if (ret)
>  		return ret;
> -	}
>  
>  	ipaConfig.sensorControls = data->sensor_->controls();
>  
> -	ret = data->ipa_->configure(ipaConfig, streamConfig);
> +	ret = data->ipa_->configure(ipaConfig, streamConfig, &data->controlInfo_);
>  	if (ret) {
>  		LOG(RkISP1, Error) << "failed configuring IPA (" << ret << ")";
>  		return ret;

-- 
Regards,

Laurent Pinchart


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