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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 |
|---|---|
| 2534 | } |
| 2535 | |
| 2536 | /** |
| 2537 | * Filters the media library used for the video shortcode. |
| 2538 | * |
| 2539 | * @since 3.6.0 |
| 2540 | * |
| 2541 | * @param string $library Media library used for the video shortcode. |
| 2542 | */ |
| 2543 | $library = apply_filters( 'wp_video_shortcode_library', 'mediaelement' ); |
| 2544 | if ( 'mediaelement' === $library && did_action( 'init' ) ) { |
| 2545 | wp_enqueue_style( 'wp-mediaelement' ); |
| 2546 | wp_enqueue_script( 'wp-mediaelement' ); |
| 2547 | } |
| 2548 | |
| 2549 | // Mediaelement has issues with some URL formats for Vimeo and YouTube, so |
| 2550 | // update the URL to prevent the ME.js player from breaking. |
| 2551 | if ( 'mediaelement' === $library ) { |
| 2552 | if ( $is_youtube ) { |