require 'open3' module Hydra::Derivatives class CapabilityService attr_accessor :ffmpeg_output def capture_output @ffmpeg_output = Open3.capture3('ffmpeg -codecs').to_s rescue StandardError Logger.warn('Unable to find ffmpeg') @ffmpeg_output = "" end def fdk_aac? @ffmpeg_output.include?('--enable-libfdk-aac') || @ffmpeg_output.include?('--with-fdk-aac') end end end