UDP muxing option for Web #286 [ci skip]

docs/pages/todo/todo_done.md

@@ -6987,3 +6987,5 @@ This will discard your redo history."
 - The high frequency shouldnt honestly cause such a drop
     - although it does even prevent first bullets or dashes from playing
 
+- Enable gzip compression
+- Test on opera

hypersomnia/default_config.lua

@@ -790,8 +790,12 @@ treat_as_music_sounds_longer_than_secs = 5,
 
     allow_webrtc_clients = true,
 
+    -- If true, connections will use only single UDP port.
+    -- In that case set webrtc_port_range_begin and webrtc_port_range_end to the same value.
+    webrtc_udp_mux = false,
+
     webrtc_port_range_begin = 9000,
-    webrtc_port_range_end = 9100,
+    webrtc_port_range_end = 9010,
 
     -- If > 0, kicks players who do not provide either a Steam or Discord (TODO) session ticket upon connection.
     -- Will happen on all ranked servers by default.

src/application/setups/server/server_setup.cpp

@@ -401,7 +401,8 @@ class webrtc_server_detail {
 		const std::string& signaling_server_url,
 		const std::vector<rtc::IceServer>& iceServers,
 		const port_type ports_begin,
-		const port_type ports_end
+		const port_type ports_end,
+		const bool udp_mux
 	) {
 		LOG("Web port range: %x-%x", ports_begin, ports_end);
 		self->config.iceServers = iceServers;
@@ -411,6 +412,7 @@ class webrtc_server_detail {
 #else
 		self->config.portRangeBegin = { ports_begin };
 		self->config.portRangeEnd = { ports_end };
+		self->config.enableIceUdpMux = udp_mux;
 #endif
 
 #if USE_WEBSOCKET
@@ -715,7 +717,8 @@ server_setup::server_setup(
 			webrtc_signalling_server_url,
 			::get_ice_servers(),
 			vars.webrtc_port_range_begin,
-			vars.webrtc_port_range_end
+			vars.webrtc_port_range_end,
+			vars.webrtc_udp_mux
 		);
 	}
 

src/application/setups/server/server_vars.h

@@ -111,8 +111,10 @@ struct server_vars {
 	std::optional<arena_playtesting_context> playtesting_context;
 
 	bool allow_webrtc_clients = true;
+
+	bool webrtc_udp_mux = false;
 	port_type webrtc_port_range_begin = 9000;
-	port_type webrtc_port_range_end = 9100;
+	port_type webrtc_port_range_end = 9010;
 
 	server_name_type server_name;
 	address_string_type notified_server_list;