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The best way to understand what a hook does is to look at where it occurs in the source code.
do_action( "hook_name" )apply_filters( "hook_name", "what_to_filter" ).Remember, this hook may occur in more than one file. Moreover, the hook's context may change from version to version.
| Line | Code |
|---|---|
| 995 | add_shortcode( 'audio', 'wp_audio_shortcode' ); |
| 996 | |
| 997 | /** |
| 998 | * Return a filtered list of WP-supported video formats |
| 999 | * |
| 1000 | * @since 3.6.0 |
| 1001 | * @return array |
| 1002 | */ |
| 1003 | function wp_get_video_extensions() { |
| 1004 | return apply_filters( 'wp_video_extensions', array( 'mp4', 'm4v', 'webm', 'ogv', 'wmv', 'flv' ) ); |
| 1005 | } |
| 1006 | |
| 1007 | /** |
| 1008 | * The Video shortcode. |
| 1009 | * |
| 1010 | * This implements the functionality of the Video Shortcode for displaying |
| 1011 | * WordPress mp4s in a post. |
| 1012 | * |
| 1013 | * @since 3.6.0 |