获取信号和质量数据

描述

用户正在通话中或者会议中，用户可以获取当前呼叫的信号强度和质量数据信息，如果在当前正在主动共享或观看共享，用户还能获取共享的质量数据信息。

前提条件

用户正在通话中或者会议中。

业务流程

1. SDK向UI上报事件TSDK_E_CALL_EVT_STATISTIC_INFO，通知事件携带参数callid标识本次呼叫，信号强度和音视频质量数据，音视频质量数据对应的事件数据结构TSDK_S_CALL_STATISTIC_INFO包含音频和视频呼叫质量信息。UI获取到事件内容后，刷新显示。
   说明： 

   TSDK_E_CALL_EVT_STATISTIC_INFO事件每5秒上报一次，若UI需要更高频率获取音视频质量数据，可以调用tsdk_get_call_statistic_info()接口获取。

   代码示例：

   //c code
   case TSDK_E_CALL_EVT_STATISTIC_INFO:
   {
        handle_call_statistic_info(param1, param2, (TSDK_S_CALL_STATISTIC_INFO *)data);
        break;
   }

    
2. 如果在当前正在主动共享或观看共享，UI可以调用tsdk_get_share_statistic_info()接口获取共享质量数据，传入参数conf_handle标识本次会议句柄，返回参数数据结构TSDK_S_SHARE_STATISTIC_INFO包含共享质量数据。

   代码示例：

   //c code
   - (VideoStreamInfo *)getSignalDataInfo
   {
       TSDK_S_SHARE_STATISTIC_INFO share_statistic_info;
       memset(&share_statistic_info, 0, sizeof(TSDK_S_SHARE_STATISTIC_INFO));
       tsdk_get_share_statistic_info(_confHandle, &share_statistic_info);
   
       VideoStreamInfo *videoStreamInfo = [[VideoStreamInfo alloc] init];
       videoStreamInfo.sendBitRate = share_statistic_info.send_bit_rate;
       videoStreamInfo.sendFrameSize = [NSString stringWithFormat:@"%u*%u",share_statistic_info.send_frame_size_width,share_statistic_info.send_frame_size_height];
       videoStreamInfo.sendFrameRate = share_statistic_info.send_frame_rate;
       videoStreamInfo.sendLossFraction = share_statistic_info.send_pkt_loss;
       videoStreamInfo.sendDelay = share_statistic_info.send_rtt;
       videoStreamInfo.sendJitter = share_statistic_info.send_jitter;
       videoStreamInfo.recvBitRate = share_statistic_info.recv_bit_rate;
       videoStreamInfo.recvFrameSize = [NSString stringWithFormat:@"%u*%u",share_statistic_info.recv_frame_size_width,share_statistic_info.recv_frame_size_height];
       videoStreamInfo.recvLossFraction = share_statistic_info.recv_pkt_loss;
       videoStreamInfo.recvFrameRate = share_statistic_info.recv_frame_rate;
       videoStreamInfo.recvDelay = share_statistic_info.recv_rtt;
       videoStreamInfo.recvJitter = share_statistic_info.recv_jitter;
   
       return videoStreamInfo;
   }