Question

此命令适用于ffmpeg fluent

我想循环遍历一个数组而不是将结果作为可链接命令的一部分附加，但我在下面的尝试似乎不起作用。还有另一种方式吗？

let streamYT = (YTrtmp) => {
  let output = ''
  for (var i in YTrtmp) {
    output = output + ".output('rtmp://a.rtmp.youtube.com/live2/" + YTrtmp[i] + "') "
  }
  console.log(output)
  console.log("streaming to youtube")
  var proc3 = new ffmpeg({ source: inputURL, timeout: 0 })
    .addOption('-vcodec', 'libx264')
    .addOption('-acodec', 'aac')
    .addOption('-crf', 26)
    .addOption('-aspect', '640:360')
    .addOption('-f', 'flv')
    .withSize('640x360')
    .on('start', function(commandLine) {
    console.log('Query : ' + commandLine);
    })
    .on('error', function(err) {
    console.log('Error: ' + err.message);
    })
    .output('./public/videos/output/' + outputName + '.mp4', function(stdout, stderr) {
      console.log('Convert complete' +stdout)
    })
    .output
    .run()
  }

输出的错误如下

TypeError: (intermediate value).addOption(...).addOption(...).addOption(...).addOption(...).addOption(...).withSize(...).on(...).on(...).output(...).output.run is not a function

Answer 1

而不是尝试执行字符串output，看起来你应该将输出命令链接到最后，如下所示：

let streamYT = (YTrtmp) => {
   var proc3 = new ffmpeg({ source: inputURL, timeout: 0 })
    .addOption('-vcodec', 'libx264')
    .addOption('-acodec', 'aac')
    .addOption('-crf', 26)
    .addOption('-aspect', '640:360')
    .addOption('-f', 'flv')
    .withSize('640x360')
    .on('start', function(commandLine) {
       console.log('Query : ' + commandLine);
    })
    .on('error', function(err) {
       console.log('Error: ' + err.message);
    })
    .output('./public/videos/output/' + outputName + '.mp4', function(stdout, stderr) {
         console.log('Convert complete' +stdout)
    });

    for (var i in YTrtmp) {
       proc3 =  proc3.output('rtmp://a.rtmp.youtube.com/live2/" + YTrtmp[i] + "')
    }

     console.log("streaming to youtube")
     proc3.run()
}

javascript循环遍历数组并附加结果

1 个答案: