是否可以直接向 Puppeteer 获取 Puppeteer 音频馈送和/或输入音频? [英] Possible to Get Puppeteer Audio Feed and/or Input Audio Directly to Puppeteer?

问题描述

我想将 WAV 或 MP3 作为麦克风输入 puppeteer，但是在无头模式下，应用程序被静音，所以我想知道是否有办法直接将输入输入到浏览器中.

I want to input WAV or MP3 into puppeteer as a microphone, however while in headless the application is muted, so I was wondering if there was a way to get input directly into the browser.

我还想知道是否可以在无头状态下从浏览器获取音频源，和/或录制音频并将其放在文件夹中.

I am also wondering if it's possible to get a feed of audio from the browser while in headless, and/or record the audio and place it in a folder.

推荐答案

我最终使用了这个解决方案.首先，我为 Chromium 启用了一些选项:

I ended up using this solution. First, I enabled some options for Chromium:

const browser = await puppeteer.launch({
  args: [
    '--use-fake-ui-for-media-stream',
  ],
  ignoreDefaultArgs: ['--mute-audio'],
});

如果 Chromium 已经打开，请记住关闭它.

Remember to close Chromium if it is open already.

我创建了一个 元素，其中 src 设置为我想要输入的文件.我还覆盖了 navigator.mediaDevices.getUserMedia，以便它返回一个 Promise 与音频文件相同的流，而不是来自麦克风.

I created an <audio> element with the src set to the file that I wanted to input. I also overrode navigator.mediaDevices.getUserMedia, so that it returns a Promise with the same stream as the audio file, rather than from the microphone.

const page = await browser.newPage();
await page.goto('http://example.com', {waitUntil: 'load'});
await page.evaluate(() => {
  var audio = document.createElement("audio");
  audio.setAttribute("src", "http://example.com/example.mp3");
  audio.setAttribute("crossorigin", "anonymous");
  audio.setAttribute("controls", "");
  audio.onplay = function() {
    var stream = audio.captureStream();
    navigator.mediaDevices.getUserMedia = async function() {
       return stream;
    };
  });
  document.querySelector("body").appendChild(audio);
});

现在每当网站的代码调用 navigator.mediaDevices.getUserMedia 时，它都会从文件中获取音频流.(您需要先确保音频正在播放.)

Now whenever the website's code calls navigator.mediaDevices.getUserMedia, it will get the audio stream from the file. (You need to make sure the audio is playing first.)

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