+class Input : public Thread {
+public:
+ // Must be in sync with StreamConfig::Encoding.
+ enum Encoding { INPUT_ENCODING_RAW = 0, INPUT_ENCODING_METACUBE };
+
+ virtual ~Input();
+ virtual InputProto serialize() const = 0;
+ virtual std::string get_url() const = 0;
+ virtual void close_socket() = 0;
+ virtual void add_destination(int stream_index) = 0;
+
+ // Note: May be called from a different thread, so must be thread-safe.
+ virtual InputStats get_stats() const = 0;
+};
+
+// Extremely rudimentary URL parsing.
+bool parse_url(const std::string &url, std::string *protocol, std::string *user, std::string *host, std::string *port, std::string *path);
+
+// Figure out the right type of input based on the URL, and create a new Input of the right type.
+// Will return nullptr if unknown.
+Input *create_input(const std::string &url, Input::Encoding encoding);
+Input *create_input(const InputProto &serialized);
+