将 ffmpeg 添加到 heroku buildpack nodejs

Question

我一直在尝试制作一个可以可视化音乐的服务器（This is what I have so far). That's been successful but I want to try and make it work with youtube videos, and I've found a lot of repositories on github for youtube video to audio conversion that make this reasonably doable, but in order to deploy a server on heroku that can host temporary audio files of youtube videos in the format that I want, I'd need to include ffmpeg in a buildpack and I'm not sure how to go about doing that. This is the heroku buildpack for node.js但我不太明白它是如何工作的。

TL;DR：在 github 上分叉 heroku-buildpack-nodejs 存储库后我需要执行哪些步骤才能成功部署 node.js 服务器到 heroku 和运行这个代码？

var conversionProcess = child_process.spawn(
  'ffmpeg',
  ['-i', 'some_youtube_audio.mp3', 'some_youtube_audio.webm'],
  {
    cwd: __dirname + '/tmp'
  }
);

顺便说一句，此函数的文档在 node.js API 上。

Answer 1

你应该使用多件装 https://github.com/ddollar/heroku-buildpack-multi

然后使用节点 buildpack 以及 ffmpeg buildpack https://github.com/jonathanong/heroku-buildpack-ffmpeg-latest

将 ffmpeg 添加到 heroku buildpack nodejs

Adding ffmpeg to heroku buildback nodejs

ffmpeg

heroku

child-process

node.js

buildpack