/**
* Can this box handle pdf, png, jpeg (also acdepts jpg), gif, bmp, ico...
* Mainly used to check for PDF support.
* NOTE: this call is a performance hit, especially with netpbm and ghostscript available.
* So we cache the result for 5 minutes. Keep that in mind if you make configuration changes, install
* ghostscript, etc. and don't see an immediate difference.
* @param mixed $extension
* @return mixed
*/
public static function supportsInput($extension)
{
$hint = aImageConverter::getHint("input:{$extension}");
if (!is_null($hint)) {
return $hint;
}
$result = false;
if (sfConfig::get('app_aimageconverter_netpbm', true)) {
if (aImageConverter::supportsInputNetpbm($extension)) {
$result = true;
}
}
if (!$result) {
$result = aImageConverter::supportsInputGd($extension);
}
aImageConverter::setHint("input:{$extension}", $result);
return $result;
}
