Ronald Burns

EOS Voice Manual Input/Output

Online Subsystem EOS has no built in way to configure manually inputting and outputting the voice data?! You can setup EOS_Lobby_LocalRTCOptions to configure this when creating or joining a lobby. Here's how I added it myself.

In the file OnlineSessionEOS.cpp, I added the following code to the function FOnlineSessionEOS::JoinLobbySession:

// ...
JoinLobbyOptions.bPresenceEnabled = Session->SessionSettings.bUsesPresence;
 
 
#if WITH_EOSVOICECHAT
			EOS_Lobby_LocalRTCOptions JoinLobbyLocalRTCOptions = { 0 };
			JoinLobbyLocalRTCOptions.ApiVersion = 1;
			UE_EOS_CHECK_API_MISMATCH(EOS_LOBBY_LOCALRTCOPTIONS_API_LATEST, 1);
			JoinLobbyLocalRTCOptions.bUseManualAudioInput = EOS_FALSE;
			JoinLobbyLocalRTCOptions.bUseManualAudioOutput = EOS_TRUE;
			JoinLobbyLocalRTCOptions.bLocalAudioDeviceInputStartsMuted = EOS_FALSE;
 			JoinLobbyOptions.LocalRTCOptions = &JoinLobbyLocalRTCOptions;
#endif // WITH_EOSVOICECHAT
 
 
 			JoinLobbyOptions.LobbyDetailsHandle = EOSSessionInfo->LobbyHandle->LobbyDetailsHandle;
// ...

In the same file, edit FOnlineSessionEOS::CreateLobbySession

// ...
	CreateLobbyOptions.bDisableHostMigration = !bUseHostMigration;
 
#if WITH_EOS_RTC
	CreateLobbyOptions.bEnableRTCRoom = Session->SessionSettings.bUseLobbiesVoiceChatIfAvailable;
 
	/** RONALDBURNS - Enable Manual Audio Output. */
	EOS_Lobby_LocalRTCOptions CreateLobbyLocalRTCOptions = { 0 };
	CreateLobbyLocalRTCOptions.ApiVersion = 1;
	UE_EOS_CHECK_API_MISMATCH(EOS_LOBBY_LOCALRTCOPTIONS_API_LATEST, 1);
	CreateLobbyLocalRTCOptions.bUseManualAudioInput = EOS_FALSE;
	CreateLobbyLocalRTCOptions.bUseManualAudioOutput = EOS_TRUE;
	CreateLobbyLocalRTCOptions.bLocalAudioDeviceInputStartsMuted = EOS_FALSE;
	
	CreateLobbyOptions.LocalRTCOptions = &CreateLobbyLocalRTCOptions;
#endif
 
	const FTCHARToUTF8 Utf8SessionIdOverride(*Session->SessionSettings.SessionIdOverride);
// ...

I have these values hard-coded to UseManualAudioOutput, but these will eventually be built into the FOnlineSessionSettings, making them easily toggleable by OnlineSubsystem, or even cooler, the CommonGame plugin!