syntax = "proto3";

package nest.nexustalk.v1;

enum Profile {
    AVPROFILE_MOBILE_1 = 1;
    AVPROFILE_HD_MAIN_1 = 2;
    AUDIO_AAC = 3;
    AUDIO_SPEEX = 4;
    AUDIO_OPUS = 5;
    VIDEO_H264_50KBIT_L12 = 6;
    VIDEO_H264_530KBIT_L31 = 7;
    VIDEO_H264_100KBIT_L30 = 8;
    VIDEO_H264_2MBIT_L40 = 9;
    VIDEO_H264_50KBIT_L12_THUMBNAIL = 10;
    META = 11;
    DIRECTORS_CUT = 12;
    AUDIO_OPUS_LIVE = 13;
    VIDEO_H264_L31 = 14;
    VIDEO_H264_L40 = 15;
}

enum CodecType {
    SPEEX = 0;
    PCM_S16_LE = 1;
    H264 = 2;
    AAC = 3;
    OPUS = 4;
    META = 5;
    DIRECTORS_CUT = 6;
}

message Hello {
    enum ProtocolVersion {
        VERSION_1 = 1;
        VERSION_2 = 2;
        VERSION_3 = 3;
    }

    enum ClientType {
        ANDROID = 1;
        IOS = 2;
        WEB = 3;
    }

    ProtocolVersion protocolVersion = 1;
    string uuid = 2;
    bool requireConnectedCamera = 3;
    string sessionToken = 4;
    bool isCamera = 5;
    string deviceId = 6;
    string userAgent = 7;
    string serviceAccessKey = 8;
    ClientType clientType = 9;
    string wwnAccessToken = 10;
    string encryptedDeviceId = 11;
    bytes authoriseRequest = 12;
    string clientIpAddress = 13;
    bool requireOwnerServer = 15;
}

message AuthoriseRequest {
    string sessionToken = 1;
    string wwnAccessToken = 2;
    string serviceAccessKey = 3;
    string oliveToken = 4;
}

message Redirect {
    string newHost = 1;
    bool isTranscode = 2;
}

message Ok {
    uint32 udpPort = 1;
}

message PlaybackPacket {
    message DirectorsCutRegions {
        uint32 id = 1;
        uint32 left = 2;
        uint32 right = 3;
        uint32 top = 4;
        uint32 bottom = 5;
    }
    uint32 sessionId = 1;
    uint32 channelId = 2;
    sint32 timestampDelta = 3;
    bytes payload = 4;
    uint64 latencyRtpSequence = 5;
    uint64 latencyRtpSsrc = 6;
    repeated DirectorsCutRegions directorsCutRegions = 7;
}

message PlaybackEnd {
    enum Reason {
        USER_ENDED_SESSION = 0;
        ERROR_TIME_NOT_AVAILABLE = 1;
        ERROR_PROFILE_NOT_AVAILABLE = 2;
        ERROR_TRANSCODE_NOT_AVAILABLE = 3;
        ERROR_LEAF_NODE_CANNOT_REACH_CAMERA = 4;
        PLAY_END_SESSION_COMPLETE = 128;
    }

    uint32 sessionId = 1;
    Reason reason = 2;
}

message PlaybackBegin {
    message Channels {
        uint32 channelId = 1;
        CodecType codec = 2;
        uint32 sampleRate = 3;
        bytes privateData = 4;
        double startTime = 5;
        double rtpStartTime = 6;
        uint32 udpSsrc = 7;
        Profile profile = 8;
    }
    uint32 sessionId = 1;
    repeated Channels channels = 2;
    bytes srtpMasterKey = 3;
    bytes srtpMasterSalt = 4;
    uint32 fecKVal = 5;
    uint32 fecNVal = 7;
}

message Error {
    enum ErrorCode {
        ERROR_CAMERA_NOT_CONNECTED = 1;
        ERROR_ILLEGAL_PACKET = 2;
        ERROR_AUTHORIZATION_FAILED = 3;
        ERROR_NO_TRANSCODER_AVAILABLE = 4;
        ERROR_TRANSCODE_PROXY_ERROR = 5;
        ERROR_INTERNAL = 6;
    }

    ErrorCode code = 1;
    string message = 2;
}

message TalkbackBegin {
    string userId = 1;
    uint32 sessionId = 2;
    uint32 quickActionId = 3;
    string deviceId = 4;
}

message TalkbackEnd {
    string userId = 1;
    uint32 sessionId = 2;
    uint32 quickActionId = 3;
    string deviceId = 4;
}

message StartPlayback {
    enum ProfileNotFoundAction {
        REDIRECT = 0;
        USE_NEXT_AVAILABLE = 1;
    }

    uint32 sessionId = 1;
    Profile profile = 2;
    double startTime = 3;
    bytes externalIp = 4;
    uint32 externalPort = 5;
    repeated Profile otherProfiles = 6;
    ProfileNotFoundAction profileNotFoundAction = 7;
}

message StopPlayback {
    uint32 sessionId = 1;
}

message AudioPayload {
    bytes payload = 1;
    uint32 sessionId = 2;
    CodecType codec = 3;
    uint32 sampleRate = 4;
    uint32 latencyMeasureTag = 5;
}