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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 |
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3210 | function wp_get_video_extensions() { |
3211 | /** |
3212 | * Filters the list of supported video formats. |
3213 | * |
3214 | * @since 3.6.0 |
3215 | * |
3216 | * @param string[] $extensions An array of supported video formats. Defaults are |
3217 | * 'mp4', 'm4v', 'webm', 'ogv', 'flv'. |
3218 | */ |
3219 | return apply_filters( 'wp_video_extensions', array( 'mp4', 'm4v', 'webm', 'ogv', 'flv' ) ); |
3220 | } |
3221 |
|
3222 | /** |
3223 | * Builds the Video shortcode output. |
3224 | * |
3225 | * This implements the functionality of the Video Shortcode for displaying |
3226 | * WordPress mp4s in a post. |
3227 | * |
3228 | * @since 3.6.0 |