/**
 * Error message of the media stream relay.
 */
export declare enum ChannelMediaMessage {
    /** No error. */
    'RELAY_OK' = 0,
    /** An error occurs in the server response. */
    'SERVER_ERROR_RESPONSE' = 1,
    /** No server response. */
    'SERVER_NO_RESPONSE' = 2,
    /** The SDK fails to access the service, probably due to limited resources of the server. */
    'NO_RESOURCE_AVAILABLE' = 3,
    /** Fails to send the relay request. */
    'FAILED_JOIN_SRC' = 4,
    /** Fails to accept the relay request. */
    'FAILED_JOIN_DEST' = 5,
    /** The server fails to receive the media stream. */
    'FAILED_PACKET_RECEIVED_FROM_SRC' = 6,
    /** The server fails to send the media stream. */
    'FAILED_PACKET_SENT_TO_DEST' = 7,
    /**
     * The SDK disconnects from the server and fails to reconnect to the server due to a poor network connection.
     * In this case, the SDK resets the media stream relay state.
     * You can try
     * [startChannelMediaRelay](https://docs.agora.io/en/Video/API%20Reference/web/interfaces/agorartc.client.html#startchannelmediarelay)
     * to restart the media stream relay.
     */
    'SERVER_CONNECTION_LOST' = 8,
    /** An internal error occurs in the server. */
    'INTERNAL_ERROR' = 9,
    /** The token of the source channel has expired. */
    'SRC_TOKEN_EXPIRED' = 10,
    /** The token of the destination channel has expired. */
    'DEST_TOKEN_EXPIRED' = 11,
    /**
     * The relay has already started. Possibly caused by calling
     * [startChannelMediaRelay](https://docs.agora.io/en/Video/API%20Reference/web/interfaces/agorartc.client.html#startchannelmediarelay)
     * repeatedly, or calling
     * [startChannelMediaRelay](https://docs.agora.io/en/Video/API%20Reference/web/interfaces/agorartc.client.html#startchannelmediarelay)
     * before
     * [stopChannelMediaRelay](https://docs.agora.io/en/Video/API%20Reference/web/interfaces/agorartc.client.html#stopchannelmediarelay)
     * succeeds.
     */
    'RELAY_ALREADY_START' = 12,
    /**
     * The relay has not started. Possibly caused by calling
     * [updateChannelMediaRelay](https://docs.agora.io/en/Video/API%20Reference/web/interfaces/agorartc.client.html#updatechannelmediarelay)
     * before
     * [startChannelMediaRelay](https://docs.agora.io/en/Video/API%20Reference/web/interfaces/agorartc.client.html#startchannelmediarelay)
     * succeeds.
     */
    'RELAY_NOT_START' = 13
}