script for making audio or video playlists which play in the browser, but which also work as playlists on the iPhone.

playlist.rb

# script for making audio or video playlists which play in the browser
# but which also work as playlists on the iPhone.
#
# example:
#   playlist %w[one.mp3 two.mp3 three.mp3]
#
# sources:
#   http://stackoverflow.com/questions/87290/how-to-embed-audio-video-on-html-page-that-plays-on-iphone-browser-over-gprs
#   http://broadcast.oreilly.com/2009/04/iphone-web-audio-playlistshtml.html
#   http://jchrisa.net/drl/_design/sofa/_show/post/web_audio_for_the_iphone
#   http://www.apple.com/quicktime/tutorials/embed.html

def playlist urls, opts = {}
  options = ({
    :width => 128,
    :height => 16,
    :type => "audio/mp3",
    :image => "listen.jpeg",
    :loop => false
  }).merge opts
  
  i = 0
  ie_files = urls[1..-1].collect { |url|
    i += 1
    "'qtnext#{i}', '<#{url}>T<myself>'"
  }.join ", "
  i = 0
  files = urls[1..-1].collect { |url|
    i += 1
    "'qtnext#{i}=\"<#{url}> T<myself>\""
  }.join " "
  
  %{
<script language="JavaScript" type="text/javascript">
  //<![CDATA[
    QT_WriteOBJECT('#{options[:image]}', '#{options[:width]}', '#{options[:height]}', '',
      'controller', 'false', 'scale', 'aspect', 'target', 'myself', 'autoplay', 'true',
      'loop', '#{options[:loop]}', 'type', '#{options[:type]}',
      'href', '#{urls.first}',
      #{ie_files}
    );
  //]]>
</script>

<embed target="myself" src="#{options[:image]}" href="#{urls.first}"
  width="#{options[:width]}" height="#{options[:height]}" autoplay="true"
  type="#{options[:type]}" loop="#{options[:loop]}"
  controller="false" #{files}
></embed>      
  }
end