title: How can i deploy a node app using ffmpeg to heroku?
body: <p>Struggling to go from local development to deploying my web app. using ffmpeg in node to crop things. tried following this guide to deploying ffmpeg, <a href="https://github.com/HYPERHYPER/heroku-buildpack-ffmpeg" rel="nofollow">https://github.com/HYPERHYPER/heroku-buildpack-ffmpeg</a>, and how the binary needs to be in a buildpack. Achieved this, but it still doesn't work. How do i reference the buildpack? </p>
  
  <p>is is something to do with this line?
       .setFfmpegPath('./ffmpeg')</p>
  
  <pre><code>   var fileName = './new_crops/' + videoTitle + '.mp3';
      var process = new ffmpeg({
              source: videoGrab
          })
          .setFfmpegPath('./ffmpeg')
          .audioBitrate(info.formats[0].audioBitrate)
          .withAudioCodec('libmp3lame')
          .toFormat('mp3')
          .outputOptions('-id3v2_version', '4')
          .outputOptions('-metadata', 'title=' + title)
          .outputOptions('-metadata', 'artist=' + artist)
  </code></pre>
  
  <p>thanks in advance</p>