option optimize_for = SPEED;
option cc_generic_services = false;

enum EStreamChannel {
	k_EStreamChannelInvalid = -1;
	k_EStreamChannelDiscovery = 0;
	k_EStreamChannelControl = 1;
	k_EStreamChannelStats = 2;
	k_EStreamChannelDataChannelStart = 3;
}

enum EStreamDiscoveryMessage {
	k_EStreamDiscoveryPingRequest = 1;
	k_EStreamDiscoveryPingResponse = 2;
}

enum EStreamControlMessage {
	k_EStreamControlAuthenticationRequest = 1;
	k_EStreamControlAuthenticationResponse = 2;
	k_EStreamControlNegotiationInit = 3;
	k_EStreamControlNegotiationSetConfig = 4;
	k_EStreamControlNegotiationComplete = 5;
	k_EStreamControlClientHandshake = 6;
	k_EStreamControlServerHandshake = 7;
	k_EStreamControlStartNetworkTest = 8;
	k_EStreamControlKeepAlive = 9;
	k_EStreamControl_LAST_SETUP_MESSAGE = 15;
	k_EStreamControlStartAudioData = 50;
	k_EStreamControlStopAudioData = 51;
	k_EStreamControlStartVideoData = 52;
	k_EStreamControlStopVideoData = 53;
	k_EStreamControlInputMouseMotion = 54;
	k_EStreamControlInputMouseWheel = 55;
	k_EStreamControlInputMouseDown = 56;
	k_EStreamControlInputMouseUp = 57;
	k_EStreamControlInputKeyDown = 58;
	k_EStreamControlInputKeyUp = 59;
	k_EStreamControlInputGamepadAttached_OBSOLETE = 60;
	k_EStreamControlInputGamepadEvent_OBSOLETE = 61;
	k_EStreamControlInputGamepadDetached_OBSOLETE = 62;
	k_EStreamControlShowCursor = 63;
	k_EStreamControlHideCursor = 64;
	k_EStreamControlSetCursor = 65;
	k_EStreamControlGetCursorImage = 66;
	k_EStreamControlSetCursorImage = 67;
	k_EStreamControlDeleteCursor = 68;
	k_EStreamControlSetTargetFramerate = 69;
	k_EStreamControlInputLatencyTest = 70;
	k_EStreamControlGamepadRumble_OBSOLETE = 71;
	k_EStreamControlOverlayEnabled = 74;
	k_EStreamControlInputControllerAttached_OBSOLETE = 75;
	k_EStreamControlInputControllerState_OBSOLETE = 76;
	k_EStreamControlTriggerHapticPulse_OBSOLETE = 77;
	k_EStreamControlInputControllerDetached_OBSOLETE = 78;
	k_EStreamControlVideoDecoderInfo = 80;
	k_EStreamControlSetTitle = 81;
	k_EStreamControlSetIcon = 82;
	k_EStreamControlQuitRequest = 83;
	k_EStreamControlSetQoS = 87;
	k_EStreamControlInputControllerWirelessPresence_OBSOLETE = 88;
	k_EStreamControlSetGammaRamp = 89;
	k_EStreamControlVideoEncoderInfo = 90;
	k_EStreamControlInputControllerStateHID_OBSOLETE = 93;
	k_EStreamControlSetTargetBitrate = 94;
	k_EStreamControlSetControllerPairingEnabled_OBSOLETE = 95;
	k_EStreamControlSetControllerPairingResult_OBSOLETE = 96;
	k_EStreamControlTriggerControllerDisconnect_OBSOLETE = 97;
	k_EStreamControlSetActivity = 98;
	k_EStreamControlSetStreamingClientConfig = 99;
	k_EStreamControlSystemSuspend = 100;
	k_EStreamControlSetControllerSettings_OBSOLETE = 101;
	k_EStreamControlVirtualHereRequest = 102;
	k_EStreamControlVirtualHereReady = 103;
	k_EStreamControlVirtualHereShareDevice = 104;
	k_EStreamControlSetSpectatorMode = 105;
	k_EStreamControlRemoteHID = 106;
	k_EStreamControlStartMicrophoneData = 107;
	k_EStreamControlStopMicrophoneData = 108;
	k_EStreamControlInputText = 109;
	k_EStreamControlTouchConfigActive = 110;
	k_EStreamControlGetTouchConfigData = 111;
	k_EStreamControlSetTouchConfigData = 112;
	k_EStreamControlSaveTouchConfigLayout = 113;
	k_EStreamControlTouchActionSetActive = 114;
	k_EStreamControlGetTouchIconData = 115;
	k_EStreamControlSetTouchIconData = 116;
}

enum EStreamVersion {
	k_EStreamVersionNone = 0;
	k_EStreamVersionCurrent = 1;
}

enum EStreamAudioCodec {
	k_EStreamAudioCodecNone = 0;
	k_EStreamAudioCodecRaw = 1;
	k_EStreamAudioCodecVorbis = 2;
	k_EStreamAudioCodecOpus = 3;
	k_EStreamAudioCodecMP3 = 4;
	k_EStreamAudioCodecAAC = 5;
}

enum EStreamVideoCodec {
	k_EStreamVideoCodecNone = 0;
	k_EStreamVideoCodecRaw = 1;
	k_EStreamVideoCodecVP8 = 2;
	k_EStreamVideoCodecVP9 = 3;
	k_EStreamVideoCodecH264 = 4;
	k_EStreamVideoCodecHEVC = 5;
	k_EStreamVideoCodecORBX1 = 6;
	k_EStreamVideoCodecORBX2 = 7;
}

enum EStreamQualityPreference {
	k_EStreamQualityFast = 1;
	k_EStreamQualityBalanced = 2;
	k_EStreamQualityBeautiful = 3;
}

enum EStreamBitrate {
	k_EStreamBitrateAutodetect = -1;
	k_EStreamBitrateUnlimited = 0;
}

enum EStreamingDataType {
	k_EStreamingAudioData = 0;
	k_EStreamingVideoData = 1;
	k_EStreamingMicrophoneData = 2;
}

enum EStreamMouseButton {
	k_EStreamMouseButtonLeft = 1;
	k_EStreamMouseButtonRight = 2;
	k_EStreamMouseButtonMiddle = 16;
	k_EStreamMouseButtonX1 = 32;
	k_EStreamMouseButtonX2 = 64;
	k_EStreamMouseButtonUnknown = 4096;
}

enum EStreamMouseWheelDirection {
	k_EStreamMouseWheelUp = 120;
	k_EStreamMouseWheelDown = -120;
	k_EStreamMouseWheelLeft = 3;
	k_EStreamMouseWheelRight = 4;
}

enum EStreamGamepadInputType {
	k_EStreamGamepadInputInvalid = 0;
	k_EStreamGamepadInputDPadUp = 1;
	k_EStreamGamepadInputDPadDown = 2;
	k_EStreamGamepadInputDPadLeft = 4;
	k_EStreamGamepadInputDPadRight = 8;
	k_EStreamGamepadInputStart = 16;
	k_EStreamGamepadInputBack = 32;
	k_EStreamGamepadInputLeftThumb = 64;
	k_EStreamGamepadInputRightThumb = 128;
	k_EStreamGamepadInputLeftShoulder = 256;
	k_EStreamGamepadInputRightShoulder = 512;
	k_EStreamGamepadInputGuide = 1024;
	k_EStreamGamepadInputA = 4096;
	k_EStreamGamepadInputB = 8192;
	k_EStreamGamepadInputX = 16384;
	k_EStreamGamepadInputY = 32768;
	k_EStreamGamepadInputLeftThumbX = 65536;
	k_EStreamGamepadInputLeftThumbY = 131072;
	k_EStreamGamepadInputRightThumbX = 262144;
	k_EStreamGamepadInputRightThumbY = 524288;
	k_EStreamGamepadInputLeftTrigger = 1048576;
	k_EStreamGamepadInputRightTrigger = 2097152;
}

enum EStreamFramerateLimiter {
	k_EStreamFramerateSlowCapture = 1;
	k_EStreamFramerateSlowConvert = 2;
	k_EStreamFramerateSlowEncode = 4;
	k_EStreamFramerateSlowNetwork = 8;
	k_EStreamFramerateSlowDecode = 16;
	k_EStreamFramerateSlowGame = 32;
	k_EStreamFramerateSlowDisplay = 64;
}

enum EStreamActivity {
	k_EStreamActivityIdle = 1;
	k_EStreamActivityGame = 2;
	k_EStreamActivityDesktop = 3;
}

enum EStreamDataMessage {
	k_EStreamDataPacket = 1;
	k_EStreamDataLost = 2;
}

enum EAudioFormat {
	k_EAudioFormatNone = 0;
	k_EAudioFormat16BitLittleEndian = 1;
	k_EAudioFormatFloat = 2;
}

enum EVideoFormat {
	k_EVideoFormatNone = 0;
	k_EVideoFormatYV12 = 1;
	k_EVideoFormatAccel = 2;
}

enum EStreamStatsMessage {
	k_EStreamStatsFrameEvents = 1;
	k_EStreamStatsDebugDump = 2;
	k_EStreamStatsLogMessage = 3;
	k_EStreamStatsLogUploadBegin = 4;
	k_EStreamStatsLogUploadData = 5;
	k_EStreamStatsLogUploadComplete = 6;
}

enum EStreamFrameEvent {
	k_EStreamInputEventStart = 0;
	k_EStreamInputEventSend = 1;
	k_EStreamInputEventRecv = 2;
	k_EStreamInputEventQueued = 3;
	k_EStreamInputEventHandled = 4;
	k_EStreamFrameEventStart = 5;
	k_EStreamFrameEventCaptureBegin = 6;
	k_EStreamFrameEventCaptureEnd = 7;
	k_EStreamFrameEventConvertBegin = 8;
	k_EStreamFrameEventConvertEnd = 9;
	k_EStreamFrameEventEncodeBegin = 10;
	k_EStreamFrameEventEncodeEnd = 11;
	k_EStreamFrameEventSend = 12;
	k_EStreamFrameEventRecv = 13;
	k_EStreamFrameEventDecodeBegin = 14;
	k_EStreamFrameEventDecodeEnd = 15;
	k_EStreamFrameEventUploadBegin = 16;
	k_EStreamFrameEventUploadEnd = 17;
	k_EStreamFrameEventComplete = 18;
}

enum EStreamFrameResult {
	k_EStreamFrameResultPending = 0;
	k_EStreamFrameResultDisplayed = 1;
	k_EStreamFrameResultDroppedNetworkSlow = 2;
	k_EStreamFrameResultDroppedNetworkLost = 3;
	k_EStreamFrameResultDroppedDecodeSlow = 4;
	k_EStreamFrameResultDroppedDecodeCorrupt = 5;
	k_EStreamFrameResultDroppedLate = 6;
	k_EStreamFrameResultDroppedReset = 7;
}

enum EFrameAccumulatedStat {
	k_EFrameStatFPS = 0;
	k_EFrameStatCaptureDurationMS = 1;
	k_EFrameStatConvertDurationMS = 2;
	k_EFrameStatEncodeDurationMS = 3;
	k_EFrameStatSteamDurationMS = 4;
	k_EFrameStatServerDurationMS = 5;
	k_EFrameStatNetworkDurationMS = 6;
	k_EFrameStatDecodeDurationMS = 7;
	k_EFrameStatDisplayDurationMS = 8;
	k_EFrameStatClientDurationMS = 9;
	k_EFrameStatFrameDurationMS = 10;
	k_EFrameStatInputLatencyMS = 11;
	k_EFrameStatGameLatencyMS = 12;
	k_EFrameStatRoundTripLatencyMS = 13;
	k_EFrameStatPingTimeMS = 14;
	k_EFrameStatServerBitrateKbitPerSec = 15;
	k_EFrameStatClientBitrateKbitPerSec = 16;
	k_EFrameStatLinkBandwidthKbitPerSec = 17;
	k_EFrameStatPacketLossPercentage = 18;
}

enum ELogFileType {
	k_ELogFileSystemBoot = 0;
	k_ELogFileSystemReset = 1;
	k_ELogFileSystemDebug = 2;
}

message CDiscoveryPingRequest {
	optional uint32 sequence = 1;
	optional uint32 packet_size_requested = 2;
}

message CDiscoveryPingResponse {
	optional uint32 sequence = 1;
	optional uint32 packet_size_received = 2;
}

message CStreamingClientHandshakeInfo {
	optional int32 network_test = 2;
}

message CClientHandshakeMsg {
	required .CStreamingClientHandshakeInfo info = 1;
}

message CStreamingServerHandshakeInfo {
	optional int32 mtu = 1;
}

message CServerHandshakeMsg {
	required .CStreamingServerHandshakeInfo info = 1;
}

message CAuthenticationRequestMsg {
	optional bytes token = 1;
	optional .EStreamVersion version = 2 [default = k_EStreamVersionNone];
}

message CAuthenticationResponseMsg {
	enum AuthenticationResult {
		SUCCEEDED = 0;
		FAILED = 1;
	}

	optional .CAuthenticationResponseMsg.AuthenticationResult result = 1 [default = SUCCEEDED];
	optional .EStreamVersion version = 2 [default = k_EStreamVersionNone];
}

message CKeepAliveMsg {
}

message CStartNetworkTestMsg {
	optional uint32 frames = 1;
	optional uint32 framerate = 2;
	optional uint32 bitrate_kbps = 3;
	optional uint32 burst_bitrate_kbps = 4;
	optional bool bandwidth_test = 5;
}

message CStreamVideoMode {
	required uint32 width = 1;
	required uint32 height = 2;
	optional uint32 refresh_rate = 3;
	optional uint32 refresh_rate_numerator = 4;
	optional uint32 refresh_rate_denominator = 5;
}

message CStreamingClientCaps {
	optional string system_info = 1;
	optional bool system_can_suspend = 2;
	optional int32 maximum_decode_bitrate_kbps = 3;
	optional int32 maximum_burst_bitrate_kbps = 4;
	optional bool supports_video_hevc = 5;
	optional bool disable_steam_store = 6;
	optional bool disable_client_cursor = 7;
	optional bool disable_intel_hardware_encoding = 8;
	optional bool disable_amd_hardware_encoding = 9;
	optional bool disable_nvidia_hardware_encoding = 10;
}

message CStreamingClientConfig {
	optional .EStreamQualityPreference quality = 1 [default = k_EStreamQualityBalanced];
	optional uint32 maximum_resolution_x = 2;
	optional uint32 maximum_resolution_y = 3;
	optional uint32 maximum_framerate_numerator = 4;
	optional uint32 maximum_framerate_denominator = 5;
	optional int32 maximum_bitrate_kbps = 6 [default = -1];
	optional bool enable_hardware_decoding = 7 [default = true];
	optional bool enable_performance_overlay = 8 [default = false];
	optional bool enable_video_streaming = 9 [default = true];
	optional bool enable_audio_streaming = 10 [default = true];
	optional bool enable_input_streaming = 11 [default = true];
	optional int32 audio_channels = 12 [default = 2];
	optional bool enable_video_hevc = 13 [default = false];
}

message CStreamingServerConfig {
	optional bool change_desktop_resolution = 1;
	optional bool dynamically_adjust_resolution = 2;
	optional bool enable_capture_nvfbc = 3;
	optional bool enable_hardware_encoding_nvidia = 4;
	optional bool enable_hardware_encoding_amd = 5;
	optional bool enable_hardware_encoding_intel = 6;
	optional int32 software_encoding_threads = 7;
	optional bool enable_traffic_priority = 8;
}

message CNegotiatedConfig {
	optional bool reliable_data = 1;
	optional .EStreamAudioCodec selected_audio_codec = 2 [default = k_EStreamAudioCodecNone];
	optional .EStreamVideoCodec selected_video_codec = 3 [default = k_EStreamVideoCodecNone];
	repeated .CStreamVideoMode available_video_modes = 4;
	optional bool enable_remote_hid = 5;
}

message CNegotiationInitMsg {
	optional bool reliable_data = 1;
	repeated .EStreamAudioCodec supported_audio_codecs = 2;
	repeated .EStreamVideoCodec supported_video_codecs = 3;
	optional bool supports_remote_hid = 4;
}

message CNegotiationSetConfigMsg {
	required .CNegotiatedConfig config = 1;
	optional .CStreamingClientConfig streaming_client_config = 2;
	optional .CStreamingClientCaps streaming_client_caps = 3;
}

message CNegotiationCompleteMsg {
}

message CStartAudioDataMsg {
	required uint32 channel = 2;
	optional .EStreamAudioCodec codec = 3 [default = k_EStreamAudioCodecNone];
	optional bytes codec_data = 4;
	optional uint32 frequency = 5;
	optional uint32 channels = 6;
}

message CStopAudioDataMsg {
}

message CStartVideoDataMsg {
	required uint32 channel = 1;
	optional .EStreamVideoCodec codec = 2 [default = k_EStreamVideoCodecNone];
	optional bytes codec_data = 3;
	optional uint32 width = 4;
	optional uint32 height = 5;
}

message CStopVideoDataMsg {
}

message CInputLatencyTestMsg {
	required uint32 input_mark = 1;
	optional uint32 color = 2;
}

message CInputMouseMotionMsg {
	optional uint32 input_mark = 1;
	optional float x_normalized = 2;
	optional float y_normalized = 3;
	optional int32 dx = 4;
	optional int32 dy = 5;
}

message CInputMouseWheelMsg {
	optional uint32 input_mark = 1;
	required .EStreamMouseWheelDirection direction = 2 [default = k_EStreamMouseWheelUp];
}

message CInputMouseDownMsg {
	optional uint32 input_mark = 1;
	required .EStreamMouseButton button = 2 [default = k_EStreamMouseButtonLeft];
}

message CInputMouseUpMsg {
	optional uint32 input_mark = 1;
	required .EStreamMouseButton button = 2 [default = k_EStreamMouseButtonLeft];
}

message CInputKeyDownMsg {
	optional uint32 input_mark = 1;
	required uint32 scancode = 2;
}

message CInputKeyUpMsg {
	optional uint32 input_mark = 1;
	required uint32 scancode = 2;
}

message CInputTextMsg {
	optional uint32 input_mark = 1;
	required string text_utf8 = 2;
}

message CSetTitleMsg {
	optional string text = 1;
}

message CSetIconMsg {
	optional int32 width = 1;
	optional int32 height = 2;
	optional bytes image = 3;
}

message CShowCursorMsg {
	optional float x_normalized = 1;
	optional float y_normalized = 2;
}

message CHideCursorMsg {
}

message CSetCursorMsg {
	required uint64 cursor_id = 1;
}

message CGetCursorImageMsg {
	required uint64 cursor_id = 1;
}

message CSetCursorImageMsg {
	required uint64 cursor_id = 1;
	optional int32 width = 2;
	optional int32 height = 3;
	optional int32 hot_x = 4;
	optional int32 hot_y = 5;
	optional bytes image = 6;
}

message CVideoDecoderInfoMsg {
	optional string info = 1;
	optional int32 threads = 2;
}

message CVideoEncoderInfoMsg {
	optional string info = 1;
}

message CQuitRequest {
}

message CDeleteCursorMsg {
	required uint64 cursor_id = 1;
}

message CSetStreamingClientConfig {
	required .CStreamingClientConfig config = 1;
}

message CSetQoSMsg {
	required bool use_qos = 1;
}

message CSetTargetFramerateMsg {
	required uint32 framerate = 1;
	optional uint32 reasons = 2;
	optional uint32 framerate_numerator = 3;
	optional uint32 framerate_denominator = 4;
}

message CSetTargetBitrateMsg {
	required int32 bitrate = 1;
}

message COverlayEnabledMsg {
	required bool enabled = 1;
}

message CSetGammaRampMsg {
	optional bytes gamma_ramp = 1;
}

message CSetActivityMsg {
	optional .EStreamActivity activity = 1 [default = k_EStreamActivityIdle];
}

message CSystemSuspendMsg {
}

message CVirtualHereRequestMsg {
	optional string hostname = 1;
}

message CVirtualHereReadyMsg {
	optional uint32 licensed_device_count = 1;
}

message CVirtualHereShareDeviceMsg {
	optional string device_address = 1;
}

message CSetSpectatorModeMsg {
	optional bool enabled = 1;
}

message CRemoteHIDMsg {
	optional bytes data = 1;
}

message CTouchConfigActiveMsg {
	optional uint32 appid = 1;
	optional uint32 revision = 2;
}

message CGetTouchConfigDataMsg {
	optional uint32 appid = 1;
}

message CSetTouchConfigDataMsg {
	optional uint32 appid = 1;
	optional uint32 revision = 2;
	optional bytes data = 3;
	optional bytes layout = 4;
}

message CSaveTouchConfigLayoutMsg {
	optional uint32 appid = 1;
	optional bytes layout = 4;
}

message CTouchActionSetActiveMsg {
	optional uint32 appid = 1;
	optional int32 actionset_id = 2;
}

message CGetTouchIconDataMsg {
	optional uint32 appid = 1;
	optional string icon = 2;
}

message CSetTouchIconDataMsg {
	optional uint32 appid = 1;
	optional string icon = 2;
	optional bytes data = 3;
}

message CStreamDataLostMsg {
	repeated uint32 packets = 1;
}

message CAudioFormat {
	required .EAudioFormat format = 1 [default = k_EAudioFormatNone];
	optional uint32 frequency = 2;
	optional uint32 channels = 3;
}

message CVideoFormat {
	required .EVideoFormat format = 1 [default = k_EVideoFormatNone];
	optional uint32 width = 2;
	optional uint32 height = 3;
}

message CFrameEvent {
	required .EStreamFrameEvent event_id = 1 [default = k_EStreamInputEventStart];
	required uint32 timestamp = 2;
}

message CFrameStats {
	required uint32 frame_id = 1;
	optional uint32 input_mark = 2;
	repeated .CFrameEvent events = 3;
	required .EStreamFrameResult result = 4 [default = k_EStreamFrameResultPending];
	optional float frame_start_delta = 5;
	optional float frame_display_delta = 6;
	optional float ping_time = 7;
	optional float server_bitrate = 8;
	optional float client_bitrate = 9;
	optional float link_bandwidth = 10;
	optional float packet_loss = 11;
	optional uint32 frame_size = 12;
}

message CFrameStatAccumulatedValue {
	required .EFrameAccumulatedStat stat_type = 1 [default = k_EFrameStatFPS];
	required int32 count = 2;
	required float average = 3;
	optional float stddev = 4;
}

message CFrameStatsListMsg {
	required .EStreamingDataType data_type = 1 [default = k_EStreamingAudioData];
	repeated .CFrameStats stats = 2;
	repeated .CFrameStatAccumulatedValue accumulated_stats = 3;
	required int32 latest_frame_id = 4;
}

message CStreamingSessionStats {
	optional float frame_loss_percentage = 1;
	optional float average_network_time_ms = 2;
	optional float stddev_network_time_ms = 3;
}

message CDebugDumpMsg {
	optional bytes screenshot = 1;
}

message CLogMsg {
	optional int32 type = 1;
	optional string message = 2;
}

message CLogUploadMsg {
	optional .ELogFileType type = 1 [default = k_ELogFileSystemBoot];
	optional bytes data = 3;
}

message CTransportSignalMsg {
	message WebRTCMessage {
		message Candidate {
			optional string sdp_mid = 1;
			optional int32 sdp_mline_index = 2;
			optional string candidate = 3;
		}

		oneof msg {
			bool greeting = 1;
			string offer = 2;
			string answer = 3;
			.CTransportSignalMsg.WebRTCMessage.Candidate candidate = 4;
		}
	}

	optional .CTransportSignalMsg.WebRTCMessage webrtc = 1;
}