Function: Create new GD image resource with transparency support

Function: Based on a supplied width/height example, return the biggest possible dimensions based on the max width/height.

Function: Determines the maximum upload size allowed in php.ini.

Function: Returns a WP_Image_Editor instance and loads file into it.

Function: Tests whether there is an editor that supports a given mime type or methods.

Function: Builds the Video shortcode output.

Function: Builds the Gallery shortcode output.

Function: Outputs the templates used by playlists.

Function: Outputs and enqueue default scripts and styles for playlists.

Function: Builds the Playlist shortcode output.