1. Конфигурируем скрипт, изменяя conf/ytl_conf.rb по шаблону:

$config = {  :s3_access_key_id     => '', 
             :s3_secret_access_key => '',
             :s3_bucket_name => '',
             :s3_server => 's3-eu-west-1.amazonaws.com',

             :yt_source => 'yt_uploader',
             :yt_login => '',
             :yt_password => '',
             :yt_developer_key => '',
             :yt_feed => 'http://uploads.gdata.youtube.com/feeds/api/users/default/uploads',

             :db_host => '',
             :db_username => '',
             :db_password => '',
             :db_database => '',

             :video_chunk_duration => 10
}

2. ruby ytl.rb