在python脚本中使用youtube-dl仅从youtube视频下载音频 [英] download only audio from youtube video using youtube-dl in python script

问题描述

有很少 帖子 -使用youtube-dl从YouTube下载音频，但是它们都不是具体的或有用的.我想知道从Python脚本执行此操作的最佳方法是什么.

There's a few posts on downloading audio from YouTube using youtube-dl, but none of them are concrete or too helpful. I'm wondering what the best way to do it from a Python script is.

例如，这是用于下载视频的README示例:

For example, here's the README example for downloading videos:

import youtube_dl

ydl_opts = {}
with youtube_dl.YoutubeDL(ydl_opts) as ydl:
    ydl.download(['http://www.youtube.com/watch?v=BaW_jenozKc'])

很显然，如果您只关心音频，则不希望下载整个视频...

Obviously if you just care about the audio, you'd rather not download the whole video...

youtube-dl 源是只是很有帮助(即不是很有帮助).

The youtube-dl source is only so helpful (ie, not very).

有人建议如何编写脚本吗?

Any suggestions how to script this?

推荐答案

在如果可能/受支持，它将下载音频文件.如果文件还不是mp3，则使用 ffmpeg 或 avconv .有关更多信息，请参见 format 和 postprocessors youtube-dl当前版本中的文档条目.

This will download an audio file if possible/supported. If the file is not mp3 already, the downloaded file be converted to mp3 using ffmpeg or avconv. For more information, refer to the format and postprocessors documentation entries in a current version of youtube-dl.

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