feat(streamer): add ffmpeg encoder and mcap recording

lib/tomlplusplus/include/toml++/impl/std_optional.hpp

@@ -0,0 +1,32 @@
+//# This file is a part of toml++ and is subject to the the terms of the MIT license.
+//# Copyright (c) Mark Gillard <mark.gillard@outlook.com.au>
+//# See https://github.com/marzer/tomlplusplus/blob/master/LICENSE for the full license text.
+// SPDX-License-Identifier: MIT
+#pragma once
+
+#include "preprocessor.hpp"
+TOML_DISABLE_WARNINGS;
+#if !TOML_HAS_CUSTOM_OPTIONAL_TYPE
+#include <optional>
+#endif
+TOML_ENABLE_WARNINGS;
+
+TOML_NAMESPACE_START
+{
+#if TOML_HAS_CUSTOM_OPTIONAL_TYPE
+
+	template <typename T>
+	using optional = TOML_OPTIONAL_TYPE<T>;
+
+#else
+
+	/// \brief	The 'optional' type used throughout the library.
+	///
+	/// \remarks By default this will be an alias for std::optional, but you can change the optional type
+	/// 		 used by the library by defining #TOML_OPTIONAL_TYPE.
+	template <typename T>
+	using optional = std::optional<T>;
+
+#endif
+}
+TOML_NAMESPACE_END;