flv_convert.rb

module Paperclip
  # Handles thumbnailing videos that are uploaded.
  class FlvConvert < Processor

    def initialize file, options = {}, attachment = nil
      super
      
      @file                = file
      @current_format      = File.extname(@file.path)
      @basename            = File.basename(@file.path, @current_format)
      @make_flv = options[:make_flv]
    end

    def make
      return @file unless @make_flv
      src = @file
      dst = Tempfile.new([@basename, '.flv'])
      dst.binmode

      begin
        
        src = File.expand_path(src.path)
        dest = File.expand_path(dst.path)
        
        cmd = "ffmpeg -y -i #{src} -vcodec flv #{dest}"
        Paperclip.log(cmd)
        
        `#{cmd}`
      rescue PaperclipCommandLineError => e
        raise PaperclipError, "There was an error converting to flv: #{@basename}" if @whiny
      end

      dst
    end
  end
end