uploader.rb

require 'rubygems'
require 'mp3info'
require 'logger'
require 'gdata'

#ARGV[0] - directory
#cover.jpg - cover
#description.txt - description for tracks
#tags.txt - tags

LOGIN = ''
PASSWORD = ''
API_KEY = ''
SOURCE = ''


DIR = ARGV[0]

description = File.read("#{DIR}/description.txt")
tags = File.read("#{DIR}/tags.txt")
log = Logger.new STDOUT
log.level = Logger::DEBUG

require 'gdata'

yt = GData::Client::YouTube.new
yt.source = SOURCE
yt.clientlogin(LOGIN,PASSWORD)
yt.client_id = SOURCE
yt.developer_key = API_KEY
feed = yt.get('http://gdata.youtube.com/feeds/api/users/default/uploads').to_xml


Dir.glob("#{DIR}/*.mp3").each do |f|
  log.info "processing #{f}"
  log.debug "Stage 1 - mp3 info"
  info = Mp3Info.open(f)
  new_title = "#{info.tag.artist} - #{info.tag.album} - #{info.tag.title}"
  fps = 1.to_f / info.length
  log.debug "Stage 2 - convert"
  
  `mencoder mf://#{DIR}/cover.jpg -mf fps=#{fps} -ovc lavc -lavcopts vcodec=mpeg4 -audiofile "#{f}" -oac mp3lame -lameopts abr:br=160 -srate 44100 -ofps 25 -o output.avi`

  log.debug "Stage 3 - upload"

  mime_type = 'video/mpeg'
  feed = 'http://uploads.gdata.youtube.com/feeds/api/users/default/uploads'

  entry = <<-EOF
    <entry xmlns="http://www.w3.org/2005/Atom"
      xmlns:media="http://search.yahoo.com/mrss/"
      xmlns:yt="http://gdata.youtube.com/schemas/2007">
      <media:group>
        <media:title type="plain">#{new_title}</media:title>
        <media:description type="plain">#{description.gsub('[TITLE]', info.tag.title)}</media:description>
        <media:category scheme="http://gdata.youtube.com/schemas/2007/categories.cat">Music</media:category>
        <media:keywords>#{tags}</media:keywords>
      </media:group>
    </entry>
  EOF
  response = yt.post_file(feed, "output.avi", mime_type, entry).to_xml
  File.delete(f)
end