npm install --save fluent-ffmpeg
  //使用js编码的用户,可以忽略下条命令
  npm install --save @types/fluent-ffmpeg 

  const ffmpegPath = "./dist/ffmpegProgram/bin/ffmpeg.exe";
  const ffprobePath = "./dist/ffmpegProgram/bin/ffprobe.exe";
  const flvtoolPath = "./dist/ffmpegProgram/bin/ffplay.exe";

  export function startPushVideo():void{
    getCommands().then((commands:ffmpegPaths[])=>{
      for(let key in commands){
        let command = commands[key];
        //设置输入流地址
        let ffCommand = ffmpeg(command.inputPath)
        //设置输出流地址
        .output(command.outputPath)
        //因需要打包客户端软件,故而将ffmpeg打包进软件中
        //需设置各应用程序的对应路径
        //若仅在本机使用,可以跳过该步骤
        //设置环境变量,添加 PATH 即可
        .setFfmpegPath(ffmpegPath)
        .setFfprobePath(ffprobePath)
        .setFlvtoolPath(flvtoolPath)
        //为保证灵活性,非必须参数采用配置文件读取模式
        .size(command.size);
        for(let key in command.args){
          ffCommand.outputOption(command.args[key]);
        }
        ffCommand.on("start",(commandLine)=>{
          //commandLine 为实际上调用的命令行命令,拼接逻辑为
          //您的ffmpeg所在路径 -i inputOptions 您的拉流协议和路径 outputOptions 推送流协议和地址
          //ffmpeg -i "rtsp://yourPullUrl" -f flv -r 25 -s 640x480 -an "rtmp://yourPushUrl"
          console.log('[' + showTime() + '] Vedio is Pushing !');
          console.log('[' + showTime() + '] Spawned Ffmpeg with command !');
          console.log('[' + showTime() + '] Command: ' + commandLine);
        })
        .on('error', function(err, stdout, stderr) {
          console.log('error: ' + err.message);
          console.log('stdout: ' + stdout);
          console.log('stderr: ' + stderr);
        })
        .on('end', function() {
          console.log('[' + showTime() + '] Vedio Pushing is Finished !');
        })
        .run();
      }
    },(error)=>{
      console.log('error: ' + error);
    })
  }