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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 |
|---|---|
| 2358 | function wp_get_video_extensions() { |
| 2359 | /** |
| 2360 | * Filters the list of supported video formats. |
| 2361 | * |
| 2362 | * @since 3.6.0 |
| 2363 | * |
| 2364 | * @param array $extensions An array of support video formats. Defaults are |
| 2365 | * 'mp4', 'm4v', 'webm', 'ogv', 'wmv', 'flv'. |
| 2366 | */ |
| 2367 | return apply_filters( 'wp_video_extensions', array( 'mp4', 'm4v', 'webm', 'ogv', 'wmv', 'flv' ) ); |
| 2368 | } |
| 2369 | |
| 2370 | /** |
| 2371 | * Builds the Video shortcode output. |
| 2372 | * |
| 2373 | * This implements the functionality of the Video Shortcode for displaying |
| 2374 | * WordPress mp4s in a post. |
| 2375 | * |
| 2376 | * @since 3.6.0 |