+my %preflist = (
+ 'insane' => [38, 37, 137, 22, 136, 35, 135, 18, 134, 34, 6, 5, 43],
+ 'hd' => [37, 137, 22, 136, 35, 135, 18, 134, 34, 6, 5, 38, 43],
+ 'h264' => [18, 134, 34, 37, 137, 22, 136, 35, 135, 6, 5, 38, 43],
+ 'high' => [34, 35, 135, 18, 134, 37, 137, 22, 136, 6, 5, 38, 43],
+ 'normal' => [6, 5, 34, 35, 135, 18, 134, 22, 136, 37, 137, 38, 43]);
+my %audiopreflist = (
+ 'insane' => [172,141,171,140,139],
+ 'hd' => [172,141,171,140,139],
+ 'h264' => [172,141,171,140,139],
+ 'high' => [171,140,172,141,139],
+ 'normal' => [171,140,172,141,139]);
+my %videoformats = (
+ # Container/Video codec/Audio codec/Resolution
+ 5 => 'FLV/Sorenson/MP3/240p',
+ 6 => 'FLV/Sorenson/MP3/270p',
+ 13 => '3GP/MPEG4-Visual/144p', # 0.5MBit
+ 17 => '3GP/MPEG4-Visual/144p', # 2MBit
+ 18 => 'MP4/H264/AAC/360p', # isommp42, Baseline
+ 22 => 'MP4/H264/AAC/720p', # isommp42, High
+ 34 => 'FLV/H264/AAC/360p', # Main
+ 35 => 'FLV/H264/AAC/480p', # Main
+ 36 => '3GP/MPEG4-Visual/240p',
+ 37 => 'MP4/H264/AAC/1080p', # High
+ 38 => 'MP4/H264/AAC/3072p', # High
+ 43 => 'WebM/VP8/Vorbis/360p',
+ 44 => 'WebM/VP8/Vorbis/480p',
+ 45 => 'WebM/VP8/Vorbis/720p',
+ 46 => 'WebM/VP8/Vorbis/1080p/3D', # effective 540p
+ 82 => 'MP4/H264/AAC/360p/3D', # isomavc1mp42
+ 83 => 'MP4/H264/AAC/240p/3D', # isomavc1mp42
+ 84 => 'MP4/H264/AAC/720p/3D', # isomavc1mp42
+ 85 => 'MP4/H264/AAC/1080p/3D', # isomavc1mp42, effective 540p
+ 100 => 'WebM/VP8/Vorbis/360p/3D',
+ 101 => 'WebM/VP8/Vorbis/480p/3D',
+ 102 => 'WebM/VP8/Vorbis/720p/3D',
+ 133 => 'MP4/H264/240p/AdaptiveVideo',
+ 134 => 'MP4/H264/360p/AdaptiveVideo',
+ 135 => 'MP4/H264/480p/AdaptiveVideo',
+ 136 => 'MP4/H264/720p/AdaptiveVideo',
+ 137 => 'MP4/H264/1080p/AdaptiveVideo',
+ 139 => 'MP4/AAC/48kbit/AdaptiveAudio',
+ 140 => 'MP4/AAC/128kbit/AdaptiveAudio',
+ 141 => 'MP4/AAC/256kbit/AdaptiveAudio',
+ 160 => 'MP4/H264/144p/AdaptiveVideo',
+ 171 => 'WebM/Vorbis/128kbit/AdaptiveAudio',
+ 172 => 'WebM/Vorbis/160kbit/AdaptiveAudio',
+ );
+