如何以编程方式从 YouTube 视频中提取音频?

问题描述

我正在尝试创建一个 C# 应用程序，它允许我仅从 YouTube 视频中提取音频.我遇到过已经这样做的网站，但我不确定它们实际上是如何工作的.以编程方式执行此操作的最佳方法是什么?

I'm trying to create a C# application which allows me to extract just the audio from YouTube videos. I've come across sites that already do that, but I'm not sure how they actually work. What would be the best way to do this programmatically?

感谢您的建议

推荐答案

为此编写应用程序可能有点矫枉过正.现有的工具已经做得很好，而且它们的简单性很难被打败:

Writing an application for this might be overkill. Existing tools already do a pretty good job, and it's hard to beat their simplicity:

wget http://www.youtube.com/get_video.php?video_id=... |
  ffmpeg -i - audio.mp3

大功告成！

如果您的应用程序之后需要对音频做一些特别的事情，那么为该部分编写一个应用程序是有意义的.但是为了获得音频，转至 ffmpeg 会容易得多.

If your application needs to do something special with the audio afterwards, it would make sense to write an app for that part. But for just getting the audio out, shelling out to ffmpeg will be a lot easier.

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