diff --git a/include/libcamera/internal/converter.h b/include/libcamera/internal/converter.h
index 04187a2a9..afea46240 100644
--- a/include/libcamera/internal/converter.h
+++ b/include/libcamera/internal/converter.h
@@ -56,6 +56,7 @@ public:
 
 	virtual int configure(const StreamConfiguration &inputCfg,
 			      const std::vector<std::reference_wrapper<StreamConfiguration>> &outputCfgs) = 0;
+	virtual bool isConfigured(const Stream *stream) const = 0;
 	virtual int exportBuffers(const Stream *stream, unsigned int count,
 				  std::vector<std::unique_ptr<FrameBuffer>> *buffers) = 0;
 
diff --git a/include/libcamera/internal/converter/converter_v4l2_m2m.h b/include/libcamera/internal/converter/converter_v4l2_m2m.h
index 402a80395..1ccbfc7c2 100644
--- a/include/libcamera/internal/converter/converter_v4l2_m2m.h
+++ b/include/libcamera/internal/converter/converter_v4l2_m2m.h
@@ -50,6 +50,7 @@ public:
 	int configure(const StreamConfiguration &inputCfg,
 		      const std::vector<std::reference_wrapper<StreamConfiguration>>
 		      &outputCfg) override;
+	bool isConfigured(const Stream *stream) const override;
 	int exportBuffers(const Stream *stream, unsigned int count,
 			  std::vector<std::unique_ptr<FrameBuffer>> *buffers) override;
 
diff --git a/src/libcamera/converter.cpp b/src/libcamera/converter.cpp
index 73c02fdcf..09ebf4f57 100644
--- a/src/libcamera/converter.cpp
+++ b/src/libcamera/converter.cpp
@@ -126,6 +126,13 @@ Converter::~Converter()
  * \return 0 on success or a negative error code otherwise
  */
 
+/**
+ * \fn Converter::isConfigured()
+ * \brief Check if a given stream is configured
+ * \param[in] stream The output stream
+ * \return True if the \a stream is configured or false otherwise
+ */
+
 /**
  * \fn Converter::exportBuffers()
  * \brief Export buffers from the converter device
diff --git a/src/libcamera/converter/converter_v4l2_m2m.cpp b/src/libcamera/converter/converter_v4l2_m2m.cpp
index 342aa32da..83daca15b 100644
--- a/src/libcamera/converter/converter_v4l2_m2m.cpp
+++ b/src/libcamera/converter/converter_v4l2_m2m.cpp
@@ -437,6 +437,14 @@ int V4L2M2MConverter::configure(const StreamConfiguration &inputCfg,
 	return 0;
 }
 
+/**
+ * \copydoc libcamera::Converter::isConfigured
+ */
+bool V4L2M2MConverter::isConfigured(const Stream *stream) const
+{
+	return streams_.find(stream) != streams_.end();
+}
+
 /**
  * \copydoc libcamera::Converter::exportBuffers
  */