Source Reference:

• Component: BuddyPress :: bp-core

  File: /bp-core/bp-core-avatars.php :: Trac Source Line: 509

  		'crop_y'        => 0
  	);
  
  	$r = wp_parse_args( $args, $defaults );
  
  	/***
  	 * You may want to hook into this filter if you want to override this function.
  	 * Make sure you return false.
  	 */
  	if ( !apply_filters( 'bp_core_pre_avatar_handle_crop', true, $r ) )
  		return true;
  
  	extract( $r, EXTR_SKIP );
  
  	if ( !$original_file )
  		return false;
  
  	$original_file = bp_core_avatar_upload_path() . $original_file;
  
  	if ( !file_exists( $original_file ) )