Paperclip Remote Video Transcoding Fix

I submitted a fix to a Stack Overflow issue that later became part of the AWS Collective, related to remote video transcoding failures in a Ruby on Rails application using `paperclip-av-transcoder` and `paperclip-ffmpeg`.

The issue caused uploads to fail remotely with:

`Av::UnableToDetect (Unable to detect any supported library)`

The root cause was missing FFmpeg runtime dependencies and incomplete Heroku environment configuration.

The fix included configuring `paperclip-av-transcoder`, configuring `paperclip-ffmpeg`, validating FFmpeg installation, setting up Heroku buildpacks, creating a Procfile for runtime execution, validating transcoder processor configuration, configuring video styles and output formats, and testing transcoding between local and remote environments.

The implementation restored remote video uploads, metadata extraction, thumbnail generation, and transcoding support inside the Rails application.

Stack Overflow Post: stackoverflow.com/questions/31613800/paperclip-av-transcoder-not-working-on-remote-server/33184040#33184040

Tools: Ruby, Stack Overflow