Extension to Islandora content model map

$map = array(
  'jpeg' => 'islandora:sp_basic_image',
  'jpe' => 'islandora:sp_basic_image', 
  'jpeg' => 'islandora:sp_basic_image', 
  'gif' => 'islandora:sp_basic_image', 
  'png' => 'islandora:sp_basic_image',
  'tif' => 'islandora:sp_large_image_cmodel',
  'tiff' => 'islandora:sp_large_image_cmodel',
  'jp2' => 'islandora:sp_large_image_cmodel',
  'pdf' => 'islandora:sp_pdf',
  'mp3' => 'islandora:sp-audioCModel',
  'mp4a' => 'islandora:sp-audioCModel',
  'm4a' => 'islandora:sp-audioCModel',
  'oga' => 'islandora:sp-audioCModel',
  'ogg' => 'islandora:sp-audioCModel',
  'flac' => 'islandora:sp-audioCModel',
  'wav' => 'islandora:sp-audioCModel',
  'mp4' => 'islandora:sp_videoCModel',
  'm4v'  => 'islandora:sp_videoCModel',
  'mkv'  => 'islandora:sp_videoCModel',
  'mpeg' => 'islandora:sp_videoCModel',
  'mpe' => 'islandora:sp_videoCModel',
  'mpg' => 'islandora:sp_videoCModel',
  'qt' => 'islandora:sp_videoCModel',
  'mov' => 'islandora:sp_videoCModel',
  'ogv' => 'islandora:sp_videoCModel',
);