1 files changed, 55 insertions, 0 deletions
diff --git a/include/libcamera/internal/control_serializer.h b/include/libcamera/internal/control_serializer.h
new file mode 100644
index 00000000..99bacd92
--- /dev/null
+++ b/include/libcamera/internal/control_serializer.h
@@ -0,0 +1,55 @@
+/* SPDX-License-Identifier: LGPL-2.1-or-later */
+/*
+ * Copyright (C) 2019, Google Inc.
+ *
+ * control_serializer.h - Control (de)serializer
+ */
+#ifndef __LIBCAMERA_CONTROL_SERIALIZER_H__
+#define __LIBCAMERA_CONTROL_SERIALIZER_H__
+
+#include <map>
+#include <memory>
+#include <vector>
+
+#include <libcamera/controls.h>
+
+namespace libcamera {
+
+class ByteStreamBuffer;
+
+class ControlSerializer
+{
+public:
+	ControlSerializer();
+
+	void reset();
+
+	static size_t binarySize(const ControlInfoMap &infoMap);
+	static size_t binarySize(const ControlList &list);
+
+	int serialize(const ControlInfoMap &infoMap, ByteStreamBuffer &buffer);
+	int serialize(const ControlList &list, ByteStreamBuffer &buffer);
+
+	template<typename T>
+	T deserialize(ByteStreamBuffer &buffer);
+
+private:
+	static size_t binarySize(const ControlValue &value);
+	static size_t binarySize(const ControlInfo &info);
+
+	static void store(const ControlValue &value, ByteStreamBuffer &buffer);
+	static void store(const ControlInfo &info, ByteStreamBuffer &buffer);
+
+	ControlValue loadControlValue(ControlType type, ByteStreamBuffer &buffer,
+				      bool isArray = false, unsigned int count = 1);
+	ControlInfo loadControlInfo(ControlType type, ByteStreamBuffer &buffer);
+
+	unsigned int serial_;
+	std::vector<std::unique_ptr<ControlId>> controlIds_;
+	std::map<unsigned int, ControlInfoMap> infoMaps_;
+	std::map<const ControlInfoMap *, unsigned int> infoMapHandles_;
+};
+
+} /* namespace libcamera */
+
+#endif /* __LIBCAMERA_CONTROL_SERIALIZER_H__ */