I'm trying to implement
http://blog.firmhouse.com/validate-length-of-an-audio-file-when-using-paperclip-and-s3
But I'm unsure what gem provided FFMpegWrapper, and I'd like to use Heroku to deploy my app for testing. Does heroku support something that will work for this?
full Rails Application source:
https://github.com/mrgenixus/sound-byte
Relevant Model:
https://github.com/mrgenixus/sound-byte/blob/master/app/models/episode.rb