# Title: Simple Video tag for Jekyll
 # Author: Brandon Mathis http://brandonmathis.com
 # Description: Easily output MPEG4 HTML5 video with a flash backup.
 #
 # Syntax {% video url/to/video [width height] [url/to/poster] %}
 #
 # Example:
 # {% video http://site.com/video.mp4 720 480 http://site.com/poster-frame.jpg %}
 #
 # Output:
 # <video width='720' height='480' preload='none' controls poster='http://site.com/poster-frame.jpg'>
 #   <source src='http://site.com/video.mp4' type='video/mp4; codecs=\"avc1.42E01E, mp4a.40.2\"'/>
 # </video>
 #
 
 module Jekyll
 
   class VideoTag < Liquid::Tag
     @video = nil
     @poster = ''
     @height = ''
     @width = ''
 
     def initialize(tag_name, markup, tokens)
       if markup =~ /((https?:\/\/|\/)(\S+))(\s+(\d+)\s(\d+))?(\s+(https?:\/\/|\/)(\S+))?/i
         @video  = $1
         @width  = $5
         @height = $6
         @poster = $7
       end
       super
     end
 
     def render(context)
       output = super
       if @video
         video =  "<video width='#{@width}' height='#{@height}' preload='none' controls poster='#{@poster}'>"
         video += "<source src='#{@video}' type='video/mp4; codecs=\"avc1.42E01E, mp4a.40.2\"'/></video>"
       else
         "Error processing input, expected syntax: {% video url/to/video [width height] [url/to/poster] %}"
       end
     end
   end
 end
 
 Liquid::Template.register_tag('video', Jekyll::VideoTag)