original_string: protected function leadAAC()
  	{
  		$lead = $this->ffprobeFormat("aac");
  
  		if ($lead === true)
  		{
  			return $this->closeCase("aac", "audio/aac", $this->metadata);
  		}
  
  		return null;
  	}
code: protected function leadAAC()
  	{
  		$lead = $this->ffprobeFormat("aac");
  
  		if ($lead === true)
  		{
  			return $this->closeCase("aac", "audio/aac", $this->metadata);
  		}
  
  		return null;
  	}
code_tokens: protected function leadAAC ( ) { $ lead = $ this -> ffprobeFormat ( "aac" ) ; if ( $ lead === true ) { return $ this -> closeCase ( "aac" , "audio/aac" , $ this -> metadata ) ; } return null ; }
docstring: Checks if the file is a AAC
  
  @return boolean|null
docstring_tokens: Checks if the file is a AAC