protected function lead3GP()
	{
		$lead = $this->ffprobeFormat("3gp");

		if ($lead === true)
		{
			return $this->closeCase("3gp", "video/3gp", $this->metadata);
		}

		return null;
	}
protected function lead3GP()
	{
		$lead = $this->ffprobeFormat("3gp");

		if ($lead === true)
		{
			return $this->closeCase("3gp", "video/3gp", $this->metadata);
		}

		return null;
	}
protected function lead3GP ( ) { $ lead = $ this -> ffprobeFormat ( "3gp" ) ; if ( $ lead === true ) { return $ this -> closeCase ( "3gp" , "video/3gp" , $ this -> metadata ) ; } return null ; }
Checks if the file is a 3GP.

@return boolean|null
Checks if the file is a 3GP .