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Getting Started

最終更新日:2024-01-18 15:11:45
    This document describes how to get started with the GME APIs for Cocos2d.
    This document only describes the most important APIs to help you get started with GME. For more information on APIs, please see the API documentation.
    Important API
    Description
    Init
    Initializes GME
    Poll
    Triggers event callback
    EnterRoom
    Enters room
    EnableMic
    Enables mic
    EnableSpeaker
    Enables speaker
    Configure your project before using GME; otherwise, the SDK will not take effect.
    After a GME API is called successfully, AV_OK will be returned with the value being 0.
    GME APIs should be called in the same thread.
    The Poll API should be called periodically for GME to trigger event callbacks.
    For GME callback messages, please see the callback message list.
    Operation on devices should be performed after successful room entry.
    For detailed error codes, please see Error Codes.

    Directions for Quick Access

    1. Get a singleton

    To use the voice feature, get the ITMGContext object first.

    Sample code

    ITMGContext* context = ITMGContextGetInstance();
    context->SetTMGDelegate(this);

    2. Initialize the SDK

    For more information on how to get parameters, please see Access Guide. This API requires the AppID from the Tencent Cloud Console and the openID as parameters. The openID uniquely identifies a user with the rules stipulated by the application developer and must be unique in the application (currently, only INT64 is supported).
    Note:
    The SDK must be initialized so that a room can be entered

    Function prototype

    ITMGContext virtual int Init(const char* sdkAppId, const char* openID)
    Parameter
    Type
    Description
    sdkAppId
    char*
    AppId from the Tencent Cloud Console
    openId
    char*
    OpenID can only be in Int64 type (converted to char*) with a value greater than 10,000, which is used to identify the user

    Sample code

    #define SDKAPPID3RD "1400089356"
    cosnt char* openId="10001";
    ITMGContext* context = ITMGContextGetInstance();
    context->Init(SDKAPPID3RD, openId);

    3. Trigger event callback

    Event callbacks can be triggered by periodically calling the Poll API in update.

    Function prototype

    class ITMGContext {
    protected:
    virtual ~ITMGContext() {}
    
    public:
    virtual void Poll()= 0;
    }

    Sample code

    ITMGContextGetInstance()->Poll();

    4. Authenticate

    Generate AuthBuffer for encryption and authentication of relevant features. For release in the production environment, please use the backend deployment key as detailed in Authentication Key.To get authentication for voice messaging and speech-to-text, the room ID parameter must be set to null.

    Function prototype

    int QAVSDK_AuthBuffer_GenAuthBuffer(unsigned int dwSdkAppID, const char* strRoomID, const char* strOpenID,
    const char* strKey, unsigned char* strAuthBuffer, unsigned int bufferLength);
    Parameter
    Type
    Description
    dwSdkAppID
    int
    AppId from the Tencent Cloud Console.
    strRoomID
    char*
    Room ID, which can contain up to 127 characters (for voice messaging and speech-to-text feature, enter null).
    strOpenID
    char*
    User ID, which is the same as openID during initialization.
    strKey
    char*
    Permission key from the Tencent Cloud Console.
    strAuthBuffer
    char*
    Returned authbuff.
    bufferLength
    int
    Length of the authbuff passed in. 500 is recommended.

    Sample code

    unsigned int bufferLen = 512;
    unsigned char retAuthBuff[512] = {0};
    QAVSDK_AuthBuffer_GenAuthBuffer(atoi(SDKAPPID3RD), roomId, "10001", AUTHKEY,retAuthBuff,bufferLen);

    5. Enter a room

    When a client enters a room with the generated authentication information, the ITMG_MAIN_EVENT_TYPE_ENTER_ROOM message will be received as a callback. Mic and speaker are not enabled by default after room entry. The returned value of AV_OK indicates a success. For entering a common voice chat room that does not involve range voice, use the common room entry API. For more information, please see Range Voice.

    Function prototype

    ITMGContext virtual int EnterRoom(const char* roomID, ITMG_ROOM_TYPE roomType, const char* authBuffer, int buffLen)
    Parameter
    Type
    Description
    roomID
    char*
    Room ID, which can contain up to 127 characters
    roomType
    ITMG_ROOM_TYPE
    Room audio type
    authBuffer
    char*
    Authentication key
    buffLen
    int
    Authentication key length
    For more information on how to choose a room audio type, please see Sound Quality Selection.

    Sample code

    ITMGContext* context = ITMGContextGetInstance();
    context->EnterRoom(roomID, ITMG_ROOM_TYPE_STANDARD, (char*)retAuthBuff,bufferLen);

    6. Receive callback for room entry

    After the client enters the room, the message ITMG_MAIN_EVENT_TYPE_ENTER_ROOM will be sent and identified in the OnEvent function.

    Sample code

    
    void TMGTestScene::OnEvent(ITMG_MAIN_EVENT_TYPE eventType,const char* data){
    switch (eventType) {
    case ITMG_MAIN_EVENT_TYPE_ENTER_ROOM:
    {
    // Process
    break;
    }
    }
    }

    7. Enable/Disable the mic

    This API is used to enable/disable the mic. Mic and speaker are not enabled by default after room entry.

    Function prototype

    ITMGAudioCtrl virtual int EnableMic(bool bEnabled)
    Parameter
    Type
    Description
    bEnabled
    bool
    To enable the mic, set this parameter to true; otherwise, set it to false.

    Sample code

    ITMGContextGetInstance()->GetAudioCtrl()->EnableMic(true);

    8. Enable/Disable the speaker

    This API is used to enable/disable the speaker.

    Function prototype

    ITMGAudioCtrl virtual int EnableSpeaker(bool enable )
    Parameter
    Type
    Description
    enable
    bool
    To disable the speaker, set this parameter to false; otherwise, set it to true.

    Sample code

    ITMGContextGetInstance()->GetAudioCtrl()->EnableSpeaker(true);
    
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