2 files changed, 16 insertions, 0 deletions
diff --git a/include/libcamera/internal/converter.h b/include/libcamera/internal/converter.h
index 6623de4d..ffbb6f34 100644
--- a/include/libcamera/internal/converter.h
+++ b/include/libcamera/internal/converter.h
@@ -14,6 +14,7 @@
 #include <memory>
 #include <string>
 #include <tuple>
+#include <utility>
 #include <vector>
 
 #include <libcamera/base/class.h>
@@ -35,6 +36,7 @@ class Converter
 public:
 	enum class Feature {
 		None = 0,
+		InputCrop = (1 << 0),
 	};
 
 	using Features = Flags<Feature>;
@@ -63,6 +65,9 @@ public:
 	virtual int queueBuffers(FrameBuffer *input,
 				 const std::map<const Stream *, FrameBuffer *> &outputs) = 0;
 
+	virtual int setInputCrop(const Stream *stream, Rectangle *rect) = 0;
+	virtual std::pair<Rectangle, Rectangle> inputCropBounds(const Stream *stream) = 0;
+
 	Signal<FrameBuffer *> inputBufferReady;
 	Signal<FrameBuffer *> outputBufferReady;
 
diff --git a/include/libcamera/internal/converter/converter_v4l2_m2m.h b/include/libcamera/internal/converter/converter_v4l2_m2m.h
index b9e59899..0bc0d053 100644
--- a/include/libcamera/internal/converter/converter_v4l2_m2m.h
+++ b/include/libcamera/internal/converter/converter_v4l2_m2m.h
@@ -30,6 +30,7 @@ class Size;
 class SizeRange;
 class Stream;
 struct StreamConfiguration;
+class Rectangle;
 class V4L2M2MDevice;
 
 class V4L2M2MConverter : public Converter
@@ -57,6 +58,9 @@ public:
 	int queueBuffers(FrameBuffer *input,
 			 const std::map<const Stream *, FrameBuffer *> &outputs);
 
+	int setInputCrop(const Stream *stream, Rectangle *rect);
+	std::pair<Rectangle, Rectangle> inputCropBounds(const Stream *stream);
+
 private:
 	class V4L2M2MStream : protected Loggable
 	{
@@ -75,6 +79,11 @@ private:
 
 		int queueBuffers(FrameBuffer *input, FrameBuffer *output);
 
+		int setInputSelection(unsigned int target, Rectangle *rect);
+		int getInputSelection(unsigned int target, Rectangle *rect);
+
+		std::pair<Rectangle, Rectangle> inputCropBounds();
+
 	protected:
 		std::string logPrefix() const override;
 
@@ -88,6 +97,8 @@ private:
 
 		unsigned int inputBufferCount_;
 		unsigned int outputBufferCount_;
+
+		std::pair<Rectangle, Rectangle> inputCropBounds_;
 	};
 
 	std::unique_ptr<V4L2M2MDevice> m2m_;