diff --git a/src/android/camera_device.cpp b/src/android/camera_device.cpp
index 48a96d0c..b52bdc8f 100644
--- a/src/android/camera_device.cpp
+++ b/src/android/camera_device.cpp
@@ -1207,6 +1207,8 @@ void CameraDevice::requestComplete(Request *request)
 		resultMetadata = std::make_unique<CameraMetadata>(0, 0);
 	}
 
+	descriptor->resultMetadata_ = std::move(resultMetadata);
+
 	/* Handle post-processing. */
 	for (camera3_stream_buffer_t &buffer : descriptor->buffers_) {
 		CameraStream *cameraStream =
@@ -1224,9 +1226,8 @@ void CameraDevice::requestComplete(Request *request)
 			continue;
 		}
 
-		int ret = cameraStream->process(*src, buffer,
-						descriptor->settings_,
-						resultMetadata.get());
+		int ret = cameraStream->process(*src, buffer, descriptor);
+
 		/*
 		 * Return the FrameBuffer to the CameraStream now that we're
 		 * done processing it.
@@ -1241,7 +1242,7 @@ void CameraDevice::requestComplete(Request *request)
 		}
 	}
 
-	captureResult.result = resultMetadata->get();
+	captureResult.result = descriptor->resultMetadata_->get();
 	descriptor->status_ = Camera3RequestDescriptor::Status::Success;
 	sendCaptureResults();
 }
diff --git a/src/android/camera_device.h b/src/android/camera_device.h
index 26d1c6de..3da8dffa 100644
--- a/src/android/camera_device.h
+++ b/src/android/camera_device.h
@@ -55,6 +55,7 @@ struct Camera3RequestDescriptor {
 	std::vector<std::unique_ptr<libcamera::FrameBuffer>> frameBuffers_;
 	CameraMetadata settings_;
 	std::unique_ptr<CaptureRequest> request_;
+	std::unique_ptr<CameraMetadata> resultMetadata_;
 
 	camera3_capture_result_t captureResult_ = {};
 	Status status_ = Status::Pending;
diff --git a/src/android/camera_stream.cpp b/src/android/camera_stream.cpp
index 3b96d2e9..8f47e4d8 100644
--- a/src/android/camera_stream.cpp
+++ b/src/android/camera_stream.cpp
@@ -144,8 +144,7 @@ int CameraStream::waitFence(int fence)
 
 int CameraStream::process(const FrameBuffer &source,
 			  camera3_stream_buffer_t &camera3Dest,
-			  const CameraMetadata &requestMetadata,
-			  CameraMetadata *resultMetadata)
+			  Camera3RequestDescriptor *request)
 {
 	/* Handle waiting on fences on the destination buffer. */
 	int fence = camera3Dest.acquire_fence;
@@ -175,7 +174,7 @@ int CameraStream::process(const FrameBuffer &source,
 		return -EINVAL;
 	}
 
-	return postProcessor_->process(source, &dest, requestMetadata, resultMetadata);
+	return postProcessor_->process(source, &dest, request);
 }
 
 FrameBuffer *CameraStream::getBuffer()
diff --git a/src/android/camera_stream.h b/src/android/camera_stream.h
index 03ecfa94..04cfd111 100644
--- a/src/android/camera_stream.h
+++ b/src/android/camera_stream.h
@@ -23,6 +23,8 @@ class CameraDevice;
 class CameraMetadata;
 class PostProcessor;
 
+struct Camera3RequestDescriptor;
+
 class CameraStream
 {
 public:
@@ -120,8 +122,7 @@ public:
 	int configure();
 	int process(const libcamera::FrameBuffer &source,
 		    camera3_stream_buffer_t &camera3Buffer,
-		    const CameraMetadata &requestMetadata,
-		    CameraMetadata *resultMetadata);
+		    Camera3RequestDescriptor *request);
 	libcamera::FrameBuffer *getBuffer();
 	void putBuffer(libcamera::FrameBuffer *buffer);
 
diff --git a/src/android/jpeg/post_processor_jpeg.cpp b/src/android/jpeg/post_processor_jpeg.cpp
index f6d47f63..656c48b2 100644
--- a/src/android/jpeg/post_processor_jpeg.cpp
+++ b/src/android/jpeg/post_processor_jpeg.cpp
@@ -99,14 +99,15 @@ void PostProcessorJpeg::generateThumbnail(const FrameBuffer &source,
 
 int PostProcessorJpeg::process(const FrameBuffer &source,
 			       CameraBuffer *destination,
-			       const CameraMetadata &requestMetadata,
-			       CameraMetadata *resultMetadata)
+			       Camera3RequestDescriptor *request)
 {
 	if (!encoder_)
 		return 0;
 
 	ASSERT(destination->numPlanes() == 1);
 
+	const CameraMetadata &requestMetadata = request->settings_;
+	CameraMetadata *resultMetadata = request->resultMetadata_.get();
 	camera_metadata_ro_entry_t entry;
 	int ret;
 
diff --git a/src/android/jpeg/post_processor_jpeg.h b/src/android/jpeg/post_processor_jpeg.h
index 6fd31022..0184d77e 100644
--- a/src/android/jpeg/post_processor_jpeg.h
+++ b/src/android/jpeg/post_processor_jpeg.h
@@ -24,8 +24,7 @@ public:
 		      const libcamera::StreamConfiguration &outcfg) override;
 	int process(const libcamera::FrameBuffer &source,
 		    CameraBuffer *destination,
-		    const CameraMetadata &requestMetadata,
-		    CameraMetadata *resultMetadata) override;
+		    Camera3RequestDescriptor *request) override;
 
 private:
 	void generateThumbnail(const libcamera::FrameBuffer &source,
diff --git a/src/android/post_processor.h b/src/android/post_processor.h
index ab2b2c60..fa13c7e0 100644
--- a/src/android/post_processor.h
+++ b/src/android/post_processor.h
@@ -14,6 +14,8 @@
 
 class CameraMetadata;
 
+struct Camera3RequestDescriptor;
+
 class PostProcessor
 {
 public:
@@ -23,8 +25,7 @@ public:
 			      const libcamera::StreamConfiguration &outCfg) = 0;
 	virtual int process(const libcamera::FrameBuffer &source,
 			    CameraBuffer *destination,
-			    const CameraMetadata &requestMetadata,
-			    CameraMetadata *resultMetadata) = 0;
+			    Camera3RequestDescriptor *request) = 0;
 };
 
 #endif /* __ANDROID_POST_PROCESSOR_H__ */
diff --git a/src/android/yuv/post_processor_yuv.cpp b/src/android/yuv/post_processor_yuv.cpp
index 7b3b4960..8110a1f1 100644
--- a/src/android/yuv/post_processor_yuv.cpp
+++ b/src/android/yuv/post_processor_yuv.cpp
@@ -51,8 +51,7 @@ int PostProcessorYuv::configure(const StreamConfiguration &inCfg,
 
 int PostProcessorYuv::process(const FrameBuffer &source,
 			      CameraBuffer *destination,
-			      [[maybe_unused]] const CameraMetadata &requestMetadata,
-			      [[maybe_unused]] CameraMetadata *metadata)
+			      [[maybe_unused]] Camera3RequestDescriptor *request)
 {
 	if (!isValidBuffers(source, *destination))
 		return -EINVAL;
diff --git a/src/android/yuv/post_processor_yuv.h b/src/android/yuv/post_processor_yuv.h
index 12f7af07..a4e0ff5d 100644
--- a/src/android/yuv/post_processor_yuv.h
+++ b/src/android/yuv/post_processor_yuv.h
@@ -20,8 +20,7 @@ public:
 		      const libcamera::StreamConfiguration &outcfg) override;
 	int process(const libcamera::FrameBuffer &source,
 		    CameraBuffer *destination,
-		    const CameraMetadata &requestMetadata,
-		    CameraMetadata *metadata) override;
+		    Camera3RequestDescriptor *request) override;
 
 private:
 	bool isValidBuffers(const libcamera::FrameBuffer &source,