diff --git a/include/libcamera/internal/software_isp/software_isp.h b/include/libcamera/internal/software_isp/software_isp.h
index c5338c05b99b..2631f40ef22a 100644
--- a/include/libcamera/internal/software_isp/software_isp.h
+++ b/include/libcamera/internal/software_isp/software_isp.h
@@ -80,8 +80,10 @@ public:
 	Signal<> ispStatsReady;
 	Signal<const ControlList &> setSensorControls;
 
+	const ControlList &metadata() { return metadata_; }
+
 private:
-	void saveIspParams();
+	void saveIspParams(const ControlList &metadata);
 	void setSensorCtrls(const ControlList &sensorControls);
 	void statsReady();
 	void inputReady(FrameBuffer *input);
@@ -92,6 +94,7 @@ private:
 	SharedMemObject<DebayerParams> sharedParams_;
 	DebayerParams debayerParams_;
 	DmaBufAllocator dmaHeap_;
+	ControlList metadata_;
 
 	std::unique_ptr<ipa::soft::IPAProxySoft> ipa_;
 };
diff --git a/include/libcamera/ipa/soft.mojom b/include/libcamera/ipa/soft.mojom
index 3aa2066ebaa0..1a0221df7660 100644
--- a/include/libcamera/ipa/soft.mojom
+++ b/include/libcamera/ipa/soft.mojom
@@ -24,5 +24,5 @@ interface IPASoftInterface {
 
 interface IPASoftEventInterface {
 	setSensorControls(libcamera.ControlList sensorControls);
-	setIspParams();
+	setIspParams(libcamera.ControlList metadata);
 };
diff --git a/src/ipa/simple/soft_simple.cpp b/src/ipa/simple/soft_simple.cpp
index b7746ce09206..09c7b575301e 100644
--- a/src/ipa/simple/soft_simple.cpp
+++ b/src/ipa/simple/soft_simple.cpp
@@ -250,6 +250,8 @@ void IPASoftSimple::processStats(const ControlList &sensorControls)
 	SwIspStats::Histogram histogram = stats_->yHistogram;
 	if (ignoreUpdates_ > 0)
 		blackLevel_.update(histogram);
+
+	ControlList metadata(controls::controls);
 	const uint8_t blackLevel = blackLevel_.get();
 
 	/*
@@ -303,7 +305,7 @@ void IPASoftSimple::processStats(const ControlList &sensorControls)
 		params_->blue[i] = gammaTable_[idx];
 	}
 
-	setIspParams.emit();
+	setIspParams.emit(metadata);
 
 	/* \todo Switch to the libipa/algorithm.h API someday. */
 
diff --git a/src/libcamera/pipeline/simple/simple.cpp b/src/libcamera/pipeline/simple/simple.cpp
index eb36578e320e..accdb744d61b 100644
--- a/src/libcamera/pipeline/simple/simple.cpp
+++ b/src/libcamera/pipeline/simple/simple.cpp
@@ -860,10 +860,13 @@ void SimpleCameraData::bufferReady(FrameBuffer *buffer)
 			return;
 		}
 
-		if (converter_)
+		if (converter_) {
 			converter_->queueBuffers(buffer, conversionQueue_.front());
-		else
+		} else {
 			swIsp_->queueBuffers(buffer, conversionQueue_.front());
+			if (request)
+				request->metadata().merge(swIsp_->metadata());
+		}
 
 		conversionQueue_.pop();
 		return;
diff --git a/src/libcamera/software_isp/software_isp.cpp b/src/libcamera/software_isp/software_isp.cpp
index 20fb6f48fdf9..efbbea2d2279 100644
--- a/src/libcamera/software_isp/software_isp.cpp
+++ b/src/libcamera/software_isp/software_isp.cpp
@@ -68,7 +68,8 @@ LOG_DEFINE_CATEGORY(SoftwareIsp)
 SoftwareIsp::SoftwareIsp(PipelineHandler *pipe, const CameraSensor *sensor)
 	: dmaHeap_(DmaBufAllocator::DmaBufAllocatorFlag::CmaHeap |
 		   DmaBufAllocator::DmaBufAllocatorFlag::SystemHeap |
-		   DmaBufAllocator::DmaBufAllocatorFlag::UDmaBuf)
+		   DmaBufAllocator::DmaBufAllocatorFlag::UDmaBuf),
+	  metadata_(controls::controls)
 {
 	/*
 	 * debayerParams_ must be initialized because the initial value is used for
@@ -349,9 +350,10 @@ void SoftwareIsp::process(FrameBuffer *input, FrameBuffer *output)
 			       ConnectionTypeQueued, input, output, debayerParams_);
 }
 
-void SoftwareIsp::saveIspParams()
+void SoftwareIsp::saveIspParams(const ControlList &metadata)
 {
 	debayerParams_ = *sharedParams_;
+	metadata_.merge(metadata, ControlList::MergePolicy::OverwriteExisting);
 }
 
 void SoftwareIsp::setSensorCtrls(const ControlList &sensorControls)