Title: Media | Developer.WordPress.org --- # @package: Media * function[wp_get_image_editor_output_format()](https://developer.wordpress.org/reference/functions/wp_get_image_editor_output_format/) * Determines the output format for the image editor. * Used by [5 functions](https://developer.wordpress.org/reference/functions/wp_get_image_editor_output_format/#used-by) | Uses [1 function](https://developer.wordpress.org/reference/functions/wp_get_image_editor_output_format/#uses) | Source: [wp-includes/media.php:6337](https://github.com/WordPress/wordpress-develop/blob/6.9.4/src/wp-includes/media.php#L6337-L6367) * hook[pre_attachment_url_to_postid](https://developer.wordpress.org/reference/hooks/pre_attachment_url_to_postid/) * Filters the attachment ID to allow short-circuit the function. * Used by [1 function](https://developer.wordpress.org/reference/hooks/pre_attachment_url_to_postid/#used-by) | Uses [0 functions](https://developer.wordpress.org/reference/hooks/pre_attachment_url_to_postid/#uses) | Source: [wp-includes/media.php:5526](https://github.com/WordPress/wordpress-develop/blob/6.9.4/src/wp-includes/media.php#L5526-L5526) * function[wp_img_tag_add_auto_sizes()](https://developer.wordpress.org/reference/functions/wp_img_tag_add_auto_sizes/) * Adds ‘auto’ to the sizes attribute to the image, if the image is lazy loaded and does not already include it. * Used by [1 function](https://developer.wordpress.org/reference/functions/wp_img_tag_add_auto_sizes/#used-by) | Uses [3 functions](https://developer.wordpress.org/reference/functions/wp_img_tag_add_auto_sizes/#uses) | Source: [wp-includes/media.php:2016](https://github.com/WordPress/wordpress-develop/blob/6.9.4/src/wp-includes/media.php#L2016-L2066) * hook[wp_img_tag_add_auto_sizes](https://developer.wordpress.org/reference/hooks/wp_img_tag_add_auto_sizes/) * Filters whether auto-sizes for lazy loaded images is enabled. * Used by [4 functions](https://developer.wordpress.org/reference/hooks/wp_img_tag_add_auto_sizes/#used-by) | Uses [0 functions](https://developer.wordpress.org/reference/hooks/wp_img_tag_add_auto_sizes/#uses) | Source: [wp-includes/media.php:2024](https://github.com/WordPress/wordpress-develop/blob/6.9.4/src/wp-includes/media.php#L2024-L2024) * function[wp_sizes_attribute_includes_valid_auto()](https://developer.wordpress.org/reference/functions/wp_sizes_attribute_includes_valid_auto/) * Checks whether the given ‘sizes’ attribute includes the ‘auto’ keyword as the first item in the list. * Used by [2 functions](https://developer.wordpress.org/reference/functions/wp_sizes_attribute_includes_valid_auto/#used-by) | Uses [0 functions](https://developer.wordpress.org/reference/functions/wp_sizes_attribute_includes_valid_auto/#uses) | Source: [wp-includes/media.php:2078](https://github.com/WordPress/wordpress-develop/blob/6.9.4/src/wp-includes/media.php#L2078-L2081) * function[wp_enqueue_img_auto_sizes_contain_css_fix()](https://developer.wordpress.org/reference/functions/wp_enqueue_img_auto_sizes_contain_css_fix/) * Enqueues a CSS rule to fix potential visual issues with images using `sizes=auto`. * Used by [0 functions](https://developer.wordpress.org/reference/functions/wp_enqueue_img_auto_sizes_contain_css_fix/#used-by) | Uses [6 functions](https://developer.wordpress.org/reference/functions/wp_enqueue_img_auto_sizes_contain_css_fix/#uses) | Source: [wp-includes/media.php:2095](https://github.com/WordPress/wordpress-develop/blob/6.9.4/src/wp-includes/media.php#L2095-L2115) * function[wp_get_avif_info()](https://developer.wordpress.org/reference/functions/wp_get_avif_info/) * Extracts meta information about an AVIF file: width, height, bit depth, and number of channels. * Used by [1 function](https://developer.wordpress.org/reference/functions/wp_get_avif_info/#used-by) | Uses [1 function](https://developer.wordpress.org/reference/functions/wp_get_avif_info/#uses) | Source: [wp-includes/media.php:5862](https://github.com/WordPress/wordpress-develop/blob/6.9.4/src/wp-includes/media.php#L5862-L5887) * hook[pre_wp_get_loading_optimization_attributes](https://developer.wordpress.org/reference/hooks/pre_wp_get_loading_optimization_attributes/) * Filters whether to short-circuit loading optimization attributes. * Used by [1 function](https://developer.wordpress.org/reference/hooks/pre_wp_get_loading_optimization_attributes/#used-by) | Uses [0 functions](https://developer.wordpress.org/reference/hooks/pre_wp_get_loading_optimization_attributes/#uses) | Source: [wp-includes/media.php:5996](https://github.com/WordPress/wordpress-develop/blob/6.9.4/src/wp-includes/media.php#L5996-L5996) * hook[wp_loading_optimization_force_header_contexts](https://developer.wordpress.org/reference/hooks/wp_loading_optimization_force_header_contexts/) * Filters the header-specific contexts. * Used by [1 function](https://developer.wordpress.org/reference/hooks/wp_loading_optimization_force_header_contexts/#used-by) | Uses [0 functions](https://developer.wordpress.org/reference/hooks/wp_loading_optimization_force_header_contexts/#uses) | Source: [wp-includes/media.php:6116](https://github.com/WordPress/wordpress-develop/blob/6.9.4/src/wp-includes/media.php#L6116-L6116) * hook[wp_get_loading_optimization_attributes](https://developer.wordpress.org/reference/hooks/wp_get_loading_optimization_attributes/) * Filters the loading optimization attributes. * Used by [1 function](https://developer.wordpress.org/reference/hooks/wp_get_loading_optimization_attributes/#used-by) | Uses [0 functions](https://developer.wordpress.org/reference/hooks/wp_get_loading_optimization_attributes/#uses) | Source: [wp-includes/media.php:6196](https://github.com/WordPress/wordpress-develop/blob/6.9.4/src/wp-includes/media.php#L6196-L6196) * function[wp_high_priority_element_flag()](https://developer.wordpress.org/reference/functions/wp_high_priority_element_flag/) * Accesses a flag that indicates if an element is a possible candidate for `fetchpriority =’high’`. * Used by [1 function](https://developer.wordpress.org/reference/functions/wp_high_priority_element_flag/#used-by) | Uses [0 functions](https://developer.wordpress.org/reference/functions/wp_high_priority_element_flag/#uses) | Source: [wp-includes/media.php:6317](https://github.com/WordPress/wordpress-develop/blob/6.9.4/src/wp-includes/media.php#L6317-L6325) * function[wp_get_loading_optimization_attributes()](https://developer.wordpress.org/reference/functions/wp_get_loading_optimization_attributes/) * Gets loading optimization attributes. * Used by [6 functions](https://developer.wordpress.org/reference/functions/wp_get_loading_optimization_attributes/#used-by) | Uses [13 functions](https://developer.wordpress.org/reference/functions/wp_get_loading_optimization_attributes/#uses) | Source: [wp-includes/media.php:5980](https://github.com/WordPress/wordpress-develop/blob/6.9.4/src/wp-includes/media.php#L5980-L6197) * function[wp_maybe_add_fetchpriority_high_attr()](https://developer.wordpress.org/reference/functions/wp_maybe_add_fetchpriority_high_attr/) * Determines whether to add `fetchpriority=’high’` to loading attributes. * Used by [1 function](https://developer.wordpress.org/reference/functions/wp_maybe_add_fetchpriority_high_attr/#used-by) | Uses [2 functions](https://developer.wordpress.org/reference/functions/wp_maybe_add_fetchpriority_high_attr/#uses) | Source: [wp-includes/media.php:6261](https://github.com/WordPress/wordpress-develop/blob/6.9.4/src/wp-includes/media.php#L6261-L6306) * hook[wp_min_priority_img_pixels](https://developer.wordpress.org/reference/hooks/wp_min_priority_img_pixels/) * Filters the minimum square-pixels threshold for an image to be eligible as the high-priority image. * Used by [2 functions](https://developer.wordpress.org/reference/hooks/wp_min_priority_img_pixels/#used-by) | Uses [0 functions](https://developer.wordpress.org/reference/hooks/wp_min_priority_img_pixels/#uses) | Source: [wp-includes/media.php:6298](https://github.com/WordPress/wordpress-develop/blob/6.9.4/src/wp-includes/media.php#L6298-L6298) * function[wp_img_tag_add_loading_optimization_attrs()](https://developer.wordpress.org/reference/functions/wp_img_tag_add_loading_optimization_attrs/) * Adds optimization attributes to an `img` HTML tag. * Used by [1 function](https://developer.wordpress.org/reference/functions/wp_img_tag_add_loading_optimization_attrs/#used-by) | Uses [6 functions](https://developer.wordpress.org/reference/functions/wp_img_tag_add_loading_optimization_attrs/#uses) | Source: [wp-includes/media.php:2126](https://github.com/WordPress/wordpress-develop/blob/6.9.4/src/wp-includes/media.php#L2126-L2259) * hook[wp_get_attachment_image_context](https://developer.wordpress.org/reference/hooks/wp_get_attachment_image_context/) * Filters the context in which wp_get_attachment_image() is used. * Used by [1 function](https://developer.wordpress.org/reference/hooks/wp_get_attachment_image_context/#used-by) | Uses [0 functions](https://developer.wordpress.org/reference/hooks/wp_get_attachment_image_context/#uses) | Source: [wp-includes/media.php:1095](https://github.com/WordPress/wordpress-develop/blob/6.9.4/src/wp-includes/media.php#L1095-L1095) * hook[wp_img_tag_add_decoding_attr](https://developer.wordpress.org/reference/hooks/wp_img_tag_add_decoding_attr/) * Filters the `decoding` attribute value to add to an image. Default `async`. * Used by [2 functions](https://developer.wordpress.org/reference/hooks/wp_img_tag_add_decoding_attr/#used-by) | Uses [0 functions](https://developer.wordpress.org/reference/hooks/wp_img_tag_add_decoding_attr/#uses) | Source: [wp-includes/media.php:2172](https://github.com/WordPress/wordpress-develop/blob/6.9.4/src/wp-includes/media.php#L2172-L2177) * hook[wp_content_img_tag](https://developer.wordpress.org/reference/hooks/wp_content_img_tag/) * Filters an img tag within the content for a given context. * Used by [1 function](https://developer.wordpress.org/reference/hooks/wp_content_img_tag/#used-by) | Uses [0 functions](https://developer.wordpress.org/reference/hooks/wp_content_img_tag/#uses) | Source: [wp-includes/media.php:1971](https://github.com/WordPress/wordpress-develop/blob/6.9.4/src/wp-includes/media.php#L1971-L1971) * function[wp_omit_loading_attr_threshold()](https://developer.wordpress.org/reference/functions/wp_omit_loading_attr_threshold/) * Gets the threshold for how many of the first content media elements to not lazy- load. * Used by [2 functions](https://developer.wordpress.org/reference/functions/wp_omit_loading_attr_threshold/#used-by) | Uses [1 function](https://developer.wordpress.org/reference/functions/wp_omit_loading_attr_threshold/#uses) | Source: [wp-includes/media.php:6211](https://github.com/WordPress/wordpress-develop/blob/6.9.4/src/wp-includes/media.php#L6211-L6231) * hook[wp_omit_loading_attr_threshold](https://developer.wordpress.org/reference/hooks/wp_omit_loading_attr_threshold/) * Filters the threshold for how many of the first content media elements to not lazy-load. * Used by [1 function](https://developer.wordpress.org/reference/hooks/wp_omit_loading_attr_threshold/#used-by) | Uses [0 functions](https://developer.wordpress.org/reference/hooks/wp_omit_loading_attr_threshold/#uses) | Source: [wp-includes/media.php:6227](https://github.com/WordPress/wordpress-develop/blob/6.9.4/src/wp-includes/media.php#L6227-L6227) * function[wp_increase_content_media_count()](https://developer.wordpress.org/reference/functions/wp_increase_content_media_count/) * Increases an internal content media count variable. * Used by [2 functions](https://developer.wordpress.org/reference/functions/wp_increase_content_media_count/#used-by) | Uses [0 functions](https://developer.wordpress.org/reference/functions/wp_increase_content_media_count/#uses) | Source: [wp-includes/media.php:6242](https://github.com/WordPress/wordpress-develop/blob/6.9.4/src/wp-includes/media.php#L6242-L6248) * hook[image_editor_output_format](https://developer.wordpress.org/reference/hooks/image_editor_output_format/) * Filters the image editor output format mapping. * Used by [1 function](https://developer.wordpress.org/reference/hooks/image_editor_output_format/#used-by) | Uses [0 functions](https://developer.wordpress.org/reference/hooks/image_editor_output_format/#uses) | Source: [wp-includes/media.php:6366](https://github.com/WordPress/wordpress-develop/blob/6.9.4/src/wp-includes/media.php#L6366-L6366) * function[wp_get_webp_info()](https://developer.wordpress.org/reference/functions/wp_get_webp_info/) * Extracts meta information about a WebP file: width, height, and type. * Used by [3 functions](https://developer.wordpress.org/reference/functions/wp_get_webp_info/#used-by) | Uses [1 function](https://developer.wordpress.org/reference/functions/wp_get_webp_info/#uses) | Source: [wp-includes/media.php:5904](https://github.com/WordPress/wordpress-develop/blob/6.9.4/src/wp-includes/media.php#L5904-L5956) * hook[media_library_infinite_scrolling](https://developer.wordpress.org/reference/hooks/media_library_infinite_scrolling/) * Filters whether the Media Library grid has infinite scrolling. Default `false`. * Used by [1 function](https://developer.wordpress.org/reference/hooks/media_library_infinite_scrolling/#used-by) | Uses [0 functions](https://developer.wordpress.org/reference/hooks/media_library_infinite_scrolling/#uses) | Source: [wp-includes/media.php:4914](https://github.com/WordPress/wordpress-develop/blob/6.9.4/src/wp-includes/media.php#L4914-L4914) * function[get_adjacent_image_link()](https://developer.wordpress.org/reference/functions/get_adjacent_image_link/) * Gets the next or previous image link that has the same post parent. * Used by [3 functions](https://developer.wordpress.org/reference/functions/get_adjacent_image_link/#used-by) | Uses [5 functions](https://developer.wordpress.org/reference/functions/get_adjacent_image_link/#uses) | Source: [wp-includes/media.php:3940](https://github.com/WordPress/wordpress-develop/blob/6.9.4/src/wp-includes/media.php#L3940-L3996) * function[get_next_image_link()](https://developer.wordpress.org/reference/functions/get_next_image_link/) * Gets the next image link that has the same post parent. * Used by [1 function](https://developer.wordpress.org/reference/functions/get_next_image_link/#used-by) | Uses [1 function](https://developer.wordpress.org/reference/functions/get_next_image_link/#uses) | Source: [wp-includes/media.php:3910](https://github.com/WordPress/wordpress-develop/blob/6.9.4/src/wp-includes/media.php#L3910-L3912) * function[get_previous_image_link()](https://developer.wordpress.org/reference/functions/get_previous_image_link/) * Gets the previous image link that has the same post parent. * Used by [1 function](https://developer.wordpress.org/reference/functions/get_previous_image_link/#used-by) | Uses [1 function](https://developer.wordpress.org/reference/functions/get_previous_image_link/#uses) | Source: [wp-includes/media.php:3881](https://github.com/WordPress/wordpress-develop/blob/6.9.4/src/wp-includes/media.php#L3881-L3883) * function[wp_getimagesize()](https://developer.wordpress.org/reference/functions/wp_getimagesize/) * Allows PHP’s getimagesize() to be debuggable when necessary. * Used by [14 functions](https://developer.wordpress.org/reference/functions/wp_getimagesize/#used-by) | Uses [6 functions](https://developer.wordpress.org/reference/functions/wp_getimagesize/#uses) | Source: [wp-includes/media.php:5730](https://github.com/WordPress/wordpress-develop/blob/6.9.4/src/wp-includes/media.php#L5730-L5845) * function[wp_iframe_tag_add_loading_attr()](https://developer.wordpress.org/reference/functions/wp_iframe_tag_add_loading_attr/) * Adds `loading` attribute to an `iframe` HTML tag. * Used by [1 function](https://developer.wordpress.org/reference/functions/wp_iframe_tag_add_loading_attr/#used-by) | Uses [3 functions](https://developer.wordpress.org/reference/functions/wp_iframe_tag_add_loading_attr/#uses) | Source: [wp-includes/media.php:2356](https://github.com/WordPress/wordpress-develop/blob/6.9.4/src/wp-includes/media.php#L2356-L2409) * hook[wp_iframe_tag_add_loading_attr](https://developer.wordpress.org/reference/hooks/wp_iframe_tag_add_loading_attr/) * Filters the `loading` attribute value to add to an iframe. Default `lazy`. * Used by [1 function](https://developer.wordpress.org/reference/hooks/wp_iframe_tag_add_loading_attr/#used-by) | Uses [0 functions](https://developer.wordpress.org/reference/hooks/wp_iframe_tag_add_loading_attr/#uses) | Source: [wp-includes/media.php:2398](https://github.com/WordPress/wordpress-develop/blob/6.9.4/src/wp-includes/media.php#L2398-L2398) 1 [2](https://developer.wordpress.org/reference/package/media/page/2/?output_format=md) [3](https://developer.wordpress.org/reference/package/media/page/3/?output_format=md)… [6](https://developer.wordpress.org/reference/package/media/page/6/?output_format=md) [Next Page](https://developer.wordpress.org/reference/package/media/page/2/?output_format=md)