// Formats we recognize magic numbers for
'djvu', 'ogx', 'ogg', 'ogv', 'oga', 'spx', 'opus',
'mid', 'pdf', 'wmf', 'xcf', 'webm', 'mkv', 'mka',
- 'webp',
+ 'webp', 'mp3',
// XML formats we sure hope we recognize reliably
'svg',
// Multimedia...
'MThd' => 'audio/midi',
'OggS' => 'application/ogg',
+ 'ID3' => 'audio/mpeg',
+ "\xff\xfb" => 'audio/mpeg', // MPEG-1 layer 3
+ "\xff\xf3" => 'audio/mpeg', // MPEG-2 layer 3 (lower sample rates)
+ "\xff\xe3" => 'audio/mpeg', // MPEG-2.5 layer 3 (very low sample rates)
// Image formats...
// Note that WMF may have a bare header, no magic number.