media.rb in airplayer-0.0.4

- old
+ new

@@ -1,8 +1,26 @@
 require 'uri'
+require 'mime/types'
 
 module AirPlayer
+  # http://developer.apple.com/library/ios/#documentation/AudioVideo/Conceptual/AirPlayGuide/PreparingYourMediaforAirPlay/PreparingYourMediaforAirPlay.html
+  #
+  # File Extension | MIME type       | Ruby `mime-types`
+  # -------------- | --------------- | -----------------------------
+  # .ts            | video/MP2T      | video/MP2T 
+  # .mov           | video/quicktime | video/quicktime
+  # .m4v           | video/mpeg4     | video/vnd.objectvideo
+  # .mp4           | video/mpeg4     | application/mp4, video/mp4
+  SUPPORTED_MIME_TYPES = %w[
+    application/mp4
+    video/mp4
+    video/vnd.objectvideo
+    video/MP2T
+    video/quicktime
+    video/mpeg4
+  ]
+
   class Media
     attr_reader :title, :path, :type
 
     def initialize(target)
       path   = File.expand_path(target)
@@ -14,9 +32,16 @@
         @type = :file
       else
         @path = URI.encode(target)
         @type = :url
       end
+    end
+
+    def self.playable?(path)
+      MIME::Types.type_for(path).each do |mimetype|
+        return SUPPORTED_MIME_TYPES.include? mimetype
+      end
+      false
     end
 
     def open
       Thread.start { @video_server.start } if file?
       @path