fix

Author: MassimoDeLuca

lib/ffmpeg/movie.rb

@@ -62,7 +62,7 @@ def initialize(paths, analyzeduration = 15000000, probesize=15000000 )
         @duration = 0
       else
         video_streams = metadata[:streams].select { |stream| stream.key?(:codec_type) and stream[:codec_type] === 'video' }
-        audio_streams = metadata[:streams].select { |stream| stream.key?(:codec_type) and stream[:codec_type] === 'audio' and stream[:codec_name] }
+        audio_streams = metadata[:streams].select { |stream| stream.key?(:codec_type) and stream[:codec_type] === 'audio' and stream[:codec_name] != 'none' }
 
         data_streams = metadata[:streams].select { |stream| stream.key?(:codec_type) and stream[:codec_type] === 'data' }