source: tags/6.7.1/src/wp-includes/media.php

<?php
/**
 * WordPress API for media display.
 *
 * @package WordPress
 * @subpackage Media
 */

/**
 * Retrieves additional image sizes.
 *
 * @since 4.7.0
 *
 * @global array $_wp_additional_image_sizes
 *
 * @return array Additional images size data.
 */
function wp_get_additional_image_sizes() {
        global $_wp_additional_image_sizes;

        if ( ! $_wp_additional_image_sizes ) {
                $_wp_additional_image_sizes = array();
        }

        return $_wp_additional_image_sizes;
}

/**
 * Scales down the default size of an image.
 *
 * This is so that the image is a better fit for the editor and theme.
 *
 * The `$size` parameter accepts either an array or a string. The supported string
 * values are 'thumb' or 'thumbnail' for the given thumbnail size or defaults at
 * 128 width and 96 height in pixels. Also supported for the string value is
 * 'medium', 'medium_large' and 'full'. The 'full' isn't actually supported, but any value other
 * than the supported will result in the content_width size or 500 if that is
 * not set.
 *
 * Finally, there is a filter named {@see 'editor_max_image_size'}, that will be
 * called on the calculated array for width and height, respectively.
 *
 * @since 2.5.0
 *
 * @global int $content_width
 *
 * @param int          $width   Width of the image in pixels.
 * @param int          $height  Height of the image in pixels.
 * @param string|int[] $size    Optional. Image size. Accepts any registered image size name, or an array
 *                              of width and height values in pixels (in that order). Default 'medium'.
 * @param string       $context Optional. Could be 'display' (like in a theme) or 'edit'
 *                              (like inserting into an editor). Default null.
 * @return int[] {
 *     An array of width and height values.
 *
 *     @type int $0 The maximum width in pixels.
 *     @type int $1 The maximum height in pixels.
 * }
 */
function image_constrain_size_for_editor( $width, $height, $size = 'medium', $context = null ) {
        global $content_width;

        $_wp_additional_image_sizes = wp_get_additional_image_sizes();

        if ( ! $context ) {
                $context = is_admin() ? 'edit' : 'display';
        }

        if ( is_array( $size ) ) {
                $max_width  = $size[0];
                $max_height = $size[1];
        } elseif ( 'thumb' === $size || 'thumbnail' === $size ) {
                $max_width  = (int) get_option( 'thumbnail_size_w' );
                $max_height = (int) get_option( 'thumbnail_size_h' );
                // Last chance thumbnail size defaults.
                if ( ! $max_width && ! $max_height ) {
                        $max_width  = 128;
                        $max_height = 96;
                }
        } elseif ( 'medium' === $size ) {
                $max_width  = (int) get_option( 'medium_size_w' );
                $max_height = (int) get_option( 'medium_size_h' );

        } elseif ( 'medium_large' === $size ) {
                $max_width  = (int) get_option( 'medium_large_size_w' );
                $max_height = (int) get_option( 'medium_large_size_h' );

                if ( (int) $content_width > 0 ) {
                        $max_width = min( (int) $content_width, $max_width );
                }
        } elseif ( 'large' === $size ) {
                /*
                 * We're inserting a large size image into the editor. If it's a really
                 * big image we'll scale it down to fit reasonably within the editor
                 * itself, and within the theme's content width if it's known. The user
                 * can resize it in the editor if they wish.
                 */
                $max_width  = (int) get_option( 'large_size_w' );
                $max_height = (int) get_option( 'large_size_h' );

                if ( (int) $content_width > 0 ) {
                        $max_width = min( (int) $content_width, $max_width );
                }
        } elseif ( ! empty( $_wp_additional_image_sizes ) && in_array( $size, array_keys( $_wp_additional_image_sizes ), true ) ) {
                $max_width  = (int) $_wp_additional_image_sizes[ $size ]['width'];
                $max_height = (int) $_wp_additional_image_sizes[ $size ]['height'];
                // Only in admin. Assume that theme authors know what they're doing.
                if ( (int) $content_width > 0 && 'edit' === $context ) {
                        $max_width = min( (int) $content_width, $max_width );
                }
        } else { // $size === 'full' has no constraint.
                $max_width  = $width;
                $max_height = $height;
        }

        /**
         * Filters the maximum image size dimensions for the editor.
         *
         * @since 2.5.0
         *
         * @param int[]        $max_image_size {
         *     An array of width and height values.
         *
         *     @type int $0 The maximum width in pixels.
         *     @type int $1 The maximum height in pixels.
         * }
         * @param string|int[] $size     Requested image size. Can be any registered image size name, or
         *                               an array of width and height values in pixels (in that order).
         * @param string       $context  The context the image is being resized for.
         *                               Possible values are 'display' (like in a theme)
         *                               or 'edit' (like inserting into an editor).
         */
        list( $max_width, $max_height ) = apply_filters( 'editor_max_image_size', array( $max_width, $max_height ), $size, $context );

        return wp_constrain_dimensions( $width, $height, $max_width, $max_height );
}

/**
 * Retrieves width and height attributes using given width and height values.
 *
 * Both attributes are required in the sense that both parameters must have a
 * value, but are optional in that if you set them to false or null, then they
 * will not be added to the returned string.
 *
 * You can set the value using a string, but it will only take numeric values.
 * If you wish to put 'px' after the numbers, then it will be stripped out of
 * the return.
 *
 * @since 2.5.0
 *
 * @param int|string $width  Image width in pixels.
 * @param int|string $height Image height in pixels.
 * @return string HTML attributes for width and, or height.
 */
function image_hwstring( $width, $height ) {
        $out = '';
        if ( $width ) {
                $out .= 'width="' . (int) $width . '" ';
        }
        if ( $height ) {
                $out .= 'height="' . (int) $height . '" ';
        }
        return $out;
}

/**
 * Scales an image to fit a particular size (such as 'thumb' or 'medium').
 *
 * The URL might be the original image, or it might be a resized version. This
 * function won't create a new resized copy, it will just return an already
 * resized one if it exists.
 *
 * A plugin may use the {@see 'image_downsize'} filter to hook into and offer image
 * resizing services for images. The hook must return an array with the same
 * elements that are normally returned from the function.
 *
 * @since 2.5.0
 *
 * @param int          $id   Attachment ID for image.
 * @param string|int[] $size Optional. Image size. Accepts any registered image size name, or an array
 *                           of width and height values in pixels (in that order). Default 'medium'.
 * @return array|false {
 *     Array of image data, or boolean false if no image is available.
 *
 *     @type string $0 Image source URL.
 *     @type int    $1 Image width in pixels.
 *     @type int    $2 Image height in pixels.
 *     @type bool   $3 Whether the image is a resized image.
 * }
 */
function image_downsize( $id, $size = 'medium' ) {
        $is_image = wp_attachment_is_image( $id );

        /**
         * Filters whether to preempt the output of image_downsize().
         *
         * Returning a truthy value from the filter will effectively short-circuit
         * down-sizing the image, returning that value instead.
         *
         * @since 2.5.0
         *
         * @param bool|array   $downsize Whether to short-circuit the image downsize.
         * @param int          $id       Attachment ID for image.
         * @param string|int[] $size     Requested image size. Can be any registered image size name, or
         *                               an array of width and height values in pixels (in that order).
         */
        $out = apply_filters( 'image_downsize', false, $id, $size );

        if ( $out ) {
                return $out;
        }

        $img_url          = wp_get_attachment_url( $id );
        $meta             = wp_get_attachment_metadata( $id );
        $width            = 0;
        $height           = 0;
        $is_intermediate  = false;
        $img_url_basename = wp_basename( $img_url );

        /*
         * If the file isn't an image, attempt to replace its URL with a rendered image from its meta.
         * Otherwise, a non-image type could be returned.
         */
        if ( ! $is_image ) {
                if ( ! empty( $meta['sizes']['full'] ) ) {
                        $img_url          = str_replace( $img_url_basename, $meta['sizes']['full']['file'], $img_url );
                        $img_url_basename = $meta['sizes']['full']['file'];
                        $width            = $meta['sizes']['full']['width'];
                        $height           = $meta['sizes']['full']['height'];
                } else {
                        return false;
                }
        }

        // Try for a new style intermediate size.
        $intermediate = image_get_intermediate_size( $id, $size );

        if ( $intermediate ) {
                $img_url         = str_replace( $img_url_basename, $intermediate['file'], $img_url );
                $width           = $intermediate['width'];
                $height          = $intermediate['height'];
                $is_intermediate = true;
        } elseif ( 'thumbnail' === $size && ! empty( $meta['thumb'] ) && is_string( $meta['thumb'] ) ) {
                // Fall back to the old thumbnail.
                $imagefile = get_attached_file( $id );
                $thumbfile = str_replace( wp_basename( $imagefile ), wp_basename( $meta['thumb'] ), $imagefile );

                if ( file_exists( $thumbfile ) ) {
                        $info = wp_getimagesize( $thumbfile );

                        if ( $info ) {
                                $img_url         = str_replace( $img_url_basename, wp_basename( $thumbfile ), $img_url );
                                $width           = $info[0];
                                $height          = $info[1];
                                $is_intermediate = true;
                        }
                }
        }

        if ( ! $width && ! $height && isset( $meta['width'], $meta['height'] ) ) {
                // Any other type: use the real image.
                $width  = $meta['width'];
                $height = $meta['height'];
        }

        if ( $img_url ) {
                // We have the actual image size, but might need to further constrain it if content_width is narrower.
                list( $width, $height ) = image_constrain_size_for_editor( $width, $height, $size );

                return array( $img_url, $width, $height, $is_intermediate );
        }

        return false;
}

/**
 * Registers a new image size.
 *
 * @since 2.9.0
 *
 * @global array $_wp_additional_image_sizes Associative array of additional image sizes.
 *
 * @param string     $name   Image size identifier.
 * @param int        $width  Optional. Image width in pixels. Default 0.
 * @param int        $height Optional. Image height in pixels. Default 0.
 * @param bool|array $crop   {
 *     Optional. Image cropping behavior. If false, the image will be scaled (default).
 *     If true, image will be cropped to the specified dimensions using center positions.
 *     If an array, the image will be cropped using the array to specify the crop location:
 *
 *     @type string $0 The x crop position. Accepts 'left' 'center', or 'right'.
 *     @type string $1 The y crop position. Accepts 'top', 'center', or 'bottom'.
 * }
 */
function add_image_size( $name, $width = 0, $height = 0, $crop = false ) {
        global $_wp_additional_image_sizes;

        $_wp_additional_image_sizes[ $name ] = array(
                'width'  => absint( $width ),
                'height' => absint( $height ),
                'crop'   => $crop,
        );
}

/**
 * Checks if an image size exists.
 *
 * @since 3.9.0
 *
 * @param string $name The image size to check.
 * @return bool True if the image size exists, false if not.
 */
function has_image_size( $name ) {
        $sizes = wp_get_additional_image_sizes();
        return isset( $sizes[ $name ] );
}

/**
 * Removes a new image size.
 *
 * @since 3.9.0
 *
 * @global array $_wp_additional_image_sizes
 *
 * @param string $name The image size to remove.
 * @return bool True if the image size was successfully removed, false on failure.
 */
function remove_image_size( $name ) {
        global $_wp_additional_image_sizes;

        if ( isset( $_wp_additional_image_sizes[ $name ] ) ) {
                unset( $_wp_additional_image_sizes[ $name ] );
                return true;
        }

        return false;
}

/**
 * Registers an image size for the post thumbnail.
 *
 * @since 2.9.0
 *
 * @see add_image_size() for details on cropping behavior.
 *
 * @param int        $width  Image width in pixels.
 * @param int        $height Image height in pixels.
 * @param bool|array $crop   {
 *     Optional. Image cropping behavior. If false, the image will be scaled (default).
 *     If true, image will be cropped to the specified dimensions using center positions.
 *     If an array, the image will be cropped using the array to specify the crop location:
 *
 *     @type string $0 The x crop position. Accepts 'left' 'center', or 'right'.
 *     @type string $1 The y crop position. Accepts 'top', 'center', or 'bottom'.
 * }
 */
function set_post_thumbnail_size( $width = 0, $height = 0, $crop = false ) {
        add_image_size( 'post-thumbnail', $width, $height, $crop );
}

/**
 * Gets an img tag for an image attachment, scaling it down if requested.
 *
 * The {@see 'get_image_tag_class'} filter allows for changing the class name for the
 * image without having to use regular expressions on the HTML content. The
 * parameters are: what WordPress will use for the class, the Attachment ID,
 * image align value, and the size the image should be.
 *
 * The second filter, {@see 'get_image_tag'}, has the HTML content, which can then be
 * further manipulated by a plugin to change all attribute values and even HTML
 * content.
 *
 * @since 2.5.0
 *
 * @param int          $id    Attachment ID.
 * @param string       $alt   Image description for the alt attribute.
 * @param string       $title Image description for the title attribute.
 * @param string       $align Part of the class name for aligning the image.
 * @param string|int[] $size  Optional. Image size. Accepts any registered image size name, or an array of
 *                            width and height values in pixels (in that order). Default 'medium'.
 * @return string HTML IMG element for given image attachment.
 */
function get_image_tag( $id, $alt, $title, $align, $size = 'medium' ) {

        list( $img_src, $width, $height ) = image_downsize( $id, $size );
        $hwstring                         = image_hwstring( $width, $height );

        $title = $title ? 'title="' . esc_attr( $title ) . '" ' : '';

        $size_class = is_array( $size ) ? implode( 'x', $size ) : $size;
        $class      = 'align' . esc_attr( $align ) . ' size-' . esc_attr( $size_class ) . ' wp-image-' . $id;

        /**
         * Filters the value of the attachment's image tag class attribute.
         *
         * @since 2.6.0
         *
         * @param string       $class CSS class name or space-separated list of classes.
         * @param int          $id    Attachment ID.
         * @param string       $align Part of the class name for aligning the image.
         * @param string|int[] $size  Requested image size. Can be any registered image size name, or
         *                            an array of width and height values in pixels (in that order).
         */
        $class = apply_filters( 'get_image_tag_class', $class, $id, $align, $size );

        $html = '<img src="' . esc_url( $img_src ) . '" alt="' . esc_attr( $alt ) . '" ' . $title . $hwstring . 'class="' . $class . '" />';

        /**
         * Filters the HTML content for the image tag.
         *
         * @since 2.6.0
         *
         * @param string       $html  HTML content for the image.
         * @param int          $id    Attachment ID.
         * @param string       $alt   Image description for the alt attribute.
         * @param string       $title Image description for the title attribute.
         * @param string       $align Part of the class name for aligning the image.
         * @param string|int[] $size  Requested image size. Can be any registered image size name, or
         *                            an array of width and height values in pixels (in that order).
         */
        return apply_filters( 'get_image_tag', $html, $id, $alt, $title, $align, $size );
}

/**
 * Calculates the new dimensions for a down-sampled image.
 *
 * If either width or height are empty, no constraint is applied on
 * that dimension.
 *
 * @since 2.5.0
 *
 * @param int $current_width  Current width of the image.
 * @param int $current_height Current height of the image.
 * @param int $max_width      Optional. Max width in pixels to constrain to. Default 0.
 * @param int $max_height     Optional. Max height in pixels to constrain to. Default 0.
 * @return int[] {
 *     An array of width and height values.
 *
 *     @type int $0 The width in pixels.
 *     @type int $1 The height in pixels.
 * }
 */
function wp_constrain_dimensions( $current_width, $current_height, $max_width = 0, $max_height = 0 ) {
        if ( ! $max_width && ! $max_height ) {
                return array( $current_width, $current_height );
        }

        $width_ratio  = 1.0;
        $height_ratio = 1.0;
        $did_width    = false;
        $did_height   = false;

        if ( $max_width > 0 && $current_width > 0 && $current_width > $max_width ) {
                $width_ratio = $max_width / $current_width;
                $did_width   = true;
        }

        if ( $max_height > 0 && $current_height > 0 && $current_height > $max_height ) {
                $height_ratio = $max_height / $current_height;
                $did_height   = true;
        }

        // Calculate the larger/smaller ratios.
        $smaller_ratio = min( $width_ratio, $height_ratio );
        $larger_ratio  = max( $width_ratio, $height_ratio );

        if ( (int) round( $current_width * $larger_ratio ) > $max_width || (int) round( $current_height * $larger_ratio ) > $max_height ) {
                // The larger ratio is too big. It would result in an overflow.
                $ratio = $smaller_ratio;
        } else {
                // The larger ratio fits, and is likely to be a more "snug" fit.
                $ratio = $larger_ratio;
        }

        // Very small dimensions may result in 0, 1 should be the minimum.
        $w = max( 1, (int) round( $current_width * $ratio ) );
        $h = max( 1, (int) round( $current_height * $ratio ) );

        /*
         * Sometimes, due to rounding, we'll end up with a result like this:
         * 465x700 in a 177x177 box is 117x176... a pixel short.
         * We also have issues with recursive calls resulting in an ever-changing result.
         * Constraining to the result of a constraint should yield the original result.
         * Thus we look for dimensions that are one pixel shy of the max value and bump them up.
         */

        // Note: $did_width means it is possible $smaller_ratio == $width_ratio.
        if ( $did_width && $w === $max_width - 1 ) {
                $w = $max_width; // Round it up.
        }

        // Note: $did_height means it is possible $smaller_ratio == $height_ratio.
        if ( $did_height && $h === $max_height - 1 ) {
                $h = $max_height; // Round it up.
        }

        /**
         * Filters dimensions to constrain down-sampled images to.
         *
         * @since 4.1.0
         *
         * @param int[] $dimensions     {
         *     An array of width and height values.
         *
         *     @type int $0 The width in pixels.
         *     @type int $1 The height in pixels.
         * }
         * @param int   $current_width  The current width of the image.
         * @param int   $current_height The current height of the image.
         * @param int   $max_width      The maximum width permitted.
         * @param int   $max_height     The maximum height permitted.
         */
        return apply_filters( 'wp_constrain_dimensions', array( $w, $h ), $current_width, $current_height, $max_width, $max_height );
}

/**
 * Retrieves calculated resize dimensions for use in WP_Image_Editor.
 *
 * Calculates dimensions and coordinates for a resized image that fits
 * within a specified width and height.
 *
 * @since 2.5.0
 *
 * @param int        $orig_w Original width in pixels.
 * @param int        $orig_h Original height in pixels.
 * @param int        $dest_w New width in pixels.
 * @param int        $dest_h New height in pixels.
 * @param bool|array $crop   {
 *     Optional. Image cropping behavior. If false, the image will be scaled (default).
 *     If true, image will be cropped to the specified dimensions using center positions.
 *     If an array, the image will be cropped using the array to specify the crop location:
 *
 *     @type string $0 The x crop position. Accepts 'left' 'center', or 'right'.
 *     @type string $1 The y crop position. Accepts 'top', 'center', or 'bottom'.
 * }
 * @return array|false Returned array matches parameters for `imagecopyresampled()`. False on failure.
 */
function image_resize_dimensions( $orig_w, $orig_h, $dest_w, $dest_h, $crop = false ) {

        if ( $orig_w <= 0 || $orig_h <= 0 ) {
                return false;
        }
        // At least one of $dest_w or $dest_h must be specific.
        if ( $dest_w <= 0 && $dest_h <= 0 ) {
                return false;
        }

        /**
         * Filters whether to preempt calculating the image resize dimensions.
         *
         * Returning a non-null value from the filter will effectively short-circuit
         * image_resize_dimensions(), returning that value instead.
         *
         * @since 3.4.0
         *
         * @param null|mixed $null   Whether to preempt output of the resize dimensions.
         * @param int        $orig_w Original width in pixels.
         * @param int        $orig_h Original height in pixels.
         * @param int        $dest_w New width in pixels.
         * @param int        $dest_h New height in pixels.
         * @param bool|array $crop   Whether to crop image to specified width and height or resize.
         *                           An array can specify positioning of the crop area. Default false.
         */
        $output = apply_filters( 'image_resize_dimensions', null, $orig_w, $orig_h, $dest_w, $dest_h, $crop );

        if ( null !== $output ) {
                return $output;
        }

        // Stop if the destination size is larger than the original image dimensions.
        if ( empty( $dest_h ) ) {
                if ( $orig_w < $dest_w ) {
                        return false;
                }
        } elseif ( empty( $dest_w ) ) {
                if ( $orig_h < $dest_h ) {
                        return false;
                }
        } else {
                if ( $orig_w < $dest_w && $orig_h < $dest_h ) {
                        return false;
                }
        }

        if ( $crop ) {
                /*
                 * Crop the largest possible portion of the original image that we can size to $dest_w x $dest_h.
                 * Note that the requested crop dimensions are used as a maximum bounding box for the original image.
                 * If the original image's width or height is less than the requested width or height
                 * only the greater one will be cropped.
                 * For example when the original image is 600x300, and the requested crop dimensions are 400x400,
                 * the resulting image will be 400x300.
                 */
                $aspect_ratio = $orig_w / $orig_h;
                $new_w        = min( $dest_w, $orig_w );
                $new_h        = min( $dest_h, $orig_h );

                if ( ! $new_w ) {
                        $new_w = (int) round( $new_h * $aspect_ratio );
                }

                if ( ! $new_h ) {
                        $new_h = (int) round( $new_w / $aspect_ratio );
                }

                $size_ratio = max( $new_w / $orig_w, $new_h / $orig_h );

                $crop_w = round( $new_w / $size_ratio );
                $crop_h = round( $new_h / $size_ratio );

                if ( ! is_array( $crop ) || count( $crop ) !== 2 ) {
                        $crop = array( 'center', 'center' );
                }

                list( $x, $y ) = $crop;

                if ( 'left' === $x ) {
                        $s_x = 0;
                } elseif ( 'right' === $x ) {
                        $s_x = $orig_w - $crop_w;
                } else {
                        $s_x = floor( ( $orig_w - $crop_w ) / 2 );
                }

                if ( 'top' === $y ) {
                        $s_y = 0;
                } elseif ( 'bottom' === $y ) {
                        $s_y = $orig_h - $crop_h;
                } else {
                        $s_y = floor( ( $orig_h - $crop_h ) / 2 );
                }
        } else {
                // Resize using $dest_w x $dest_h as a maximum bounding box.
                $crop_w = $orig_w;
                $crop_h = $orig_h;

                $s_x = 0;
                $s_y = 0;

                list( $new_w, $new_h ) = wp_constrain_dimensions( $orig_w, $orig_h, $dest_w, $dest_h );
        }

        if ( wp_fuzzy_number_match( $new_w, $orig_w ) && wp_fuzzy_number_match( $new_h, $orig_h ) ) {
                // The new size has virtually the same dimensions as the original image.

                /**
                 * Filters whether to proceed with making an image sub-size with identical dimensions
                 * with the original/source image. Differences of 1px may be due to rounding and are ignored.
                 *
                 * @since 5.3.0
                 *
                 * @param bool $proceed The filtered value.
                 * @param int  $orig_w  Original image width.
                 * @param int  $orig_h  Original image height.
                 */
                $proceed = (bool) apply_filters( 'wp_image_resize_identical_dimensions', false, $orig_w, $orig_h );

                if ( ! $proceed ) {
                        return false;
                }
        }

        /*
         * The return array matches the parameters to imagecopyresampled().
         * int dst_x, int dst_y, int src_x, int src_y, int dst_w, int dst_h, int src_w, int src_h
         */
        return array( 0, 0, (int) $s_x, (int) $s_y, (int) $new_w, (int) $new_h, (int) $crop_w, (int) $crop_h );
}

/**
 * Resizes an image to make a thumbnail or intermediate size.
 *
 * The returned array has the file size, the image width, and image height. The
 * {@see 'image_make_intermediate_size'} filter can be used to hook in and change the
 * values of the returned array. The only parameter is the resized file path.
 *
 * @since 2.5.0
 *
 * @param string     $file   File path.
 * @param int        $width  Image width.
 * @param int        $height Image height.
 * @param bool|array $crop   {
 *     Optional. Image cropping behavior. If false, the image will be scaled (default).
 *     If true, image will be cropped to the specified dimensions using center positions.
 *     If an array, the image will be cropped using the array to specify the crop location:
 *
 *     @type string $0 The x crop position. Accepts 'left' 'center', or 'right'.
 *     @type string $1 The y crop position. Accepts 'top', 'center', or 'bottom'.
 * }
 * @return array|false Metadata array on success. False if no image was created.
 */
function image_make_intermediate_size( $file, $width, $height, $crop = false ) {
        if ( $width || $height ) {
                $editor = wp_get_image_editor( $file );

                if ( is_wp_error( $editor ) || is_wp_error( $editor->resize( $width, $height, $crop ) ) ) {
                        return false;
                }

                $resized_file = $editor->save();

                if ( ! is_wp_error( $resized_file ) && $resized_file ) {
                        unset( $resized_file['path'] );
                        return $resized_file;
                }
        }
        return false;
}

/**
 * Helper function to test if aspect ratios for two images match.
 *
 * @since 4.6.0
 *
 * @param int $source_width  Width of the first image in pixels.
 * @param int $source_height Height of the first image in pixels.
 * @param int $target_width  Width of the second image in pixels.
 * @param int $target_height Height of the second image in pixels.
 * @return bool True if aspect ratios match within 1px. False if not.
 */
function wp_image_matches_ratio( $source_width, $source_height, $target_width, $target_height ) {
        /*
         * To test for varying crops, we constrain the dimensions of the larger image
         * to the dimensions of the smaller image and see if they match.
         */
        if ( $source_width > $target_width ) {
                $constrained_size = wp_constrain_dimensions( $source_width, $source_height, $target_width );
                $expected_size    = array( $target_width, $target_height );
        } else {
                $constrained_size = wp_constrain_dimensions( $target_width, $target_height, $source_width );
                $expected_size    = array( $source_width, $source_height );
        }

        // If the image dimensions are within 1px of the expected size, we consider it a match.
        $matched = ( wp_fuzzy_number_match( $constrained_size[0], $expected_size[0] ) && wp_fuzzy_number_match( $constrained_size[1], $expected_size[1] ) );

        return $matched;
}

/**
 * Retrieves the image's intermediate size (resized) path, width, and height.
 *
 * The $size parameter can be an array with the width and height respectively.
 * If the size matches the 'sizes' metadata array for width and height, then it
 * will be used. If there is no direct match, then the nearest image size larger
 * than the specified size will be used. If nothing is found, then the function
 * will break out and return false.
 *
 * The metadata 'sizes' is used for compatible sizes that can be used for the
 * parameter $size value.
 *
 * The url path will be given, when the $size parameter is a string.
 *
 * If you are passing an array for the $size, you should consider using
 * add_image_size() so that a cropped version is generated. It's much more
 * efficient than having to find the closest-sized image and then having the
 * browser scale down the image.
 *
 * @since 2.5.0
 *
 * @param int          $post_id Attachment ID.
 * @param string|int[] $size    Optional. Image size. Accepts any registered image size name, or an array
 *                              of width and height values in pixels (in that order). Default 'thumbnail'.
 * @return array|false {
 *     Array of file relative path, width, and height on success. Additionally includes absolute
 *     path and URL if registered size is passed to `$size` parameter. False on failure.
 *
 *     @type string $file   Filename of image.
 *     @type int    $width  Width of image in pixels.
 *     @type int    $height Height of image in pixels.
 *     @type string $path   Path of image relative to uploads directory.
 *     @type string $url    URL of image.
 * }
 */
function image_get_intermediate_size( $post_id, $size = 'thumbnail' ) {
        $imagedata = wp_get_attachment_metadata( $post_id );

        if ( ! $size || ! is_array( $imagedata ) || empty( $imagedata['sizes'] ) ) {
                return false;
        }

        $data = array();

        // Find the best match when '$size' is an array.
        if ( is_array( $size ) ) {
                $candidates = array();

                if ( ! isset( $imagedata['file'] ) && isset( $imagedata['sizes']['full'] ) ) {
                        $imagedata['height'] = $imagedata['sizes']['full']['height'];
                        $imagedata['width']  = $imagedata['sizes']['full']['width'];
                }

                foreach ( $imagedata['sizes'] as $_size => $data ) {
                        // If there's an exact match to an existing image size, short circuit.
                        if ( (int) $data['width'] === (int) $size[0] && (int) $data['height'] === (int) $size[1] ) {
                                $candidates[ $data['width'] * $data['height'] ] = $data;
                                break;
                        }

                        // If it's not an exact match, consider larger sizes with the same aspect ratio.
                        if ( $data['width'] >= $size[0] && $data['height'] >= $size[1] ) {
                                // If '0' is passed to either size, we test ratios against the original file.
                                if ( 0 === $size[0] || 0 === $size[1] ) {
                                        $same_ratio = wp_image_matches_ratio( $data['width'], $data['height'], $imagedata['width'], $imagedata['height'] );
                                } else {
                                        $same_ratio = wp_image_matches_ratio( $data['width'], $data['height'], $size[0], $size[1] );
                                }

                                if ( $same_ratio ) {
                                        $candidates[ $data['width'] * $data['height'] ] = $data;
                                }
                        }
                }

                if ( ! empty( $candidates ) ) {
                        // Sort the array by size if we have more than one candidate.
                        if ( 1 < count( $candidates ) ) {
                                ksort( $candidates );
                        }

                        $data = array_shift( $candidates );
                        /*
                        * When the size requested is smaller than the thumbnail dimensions, we
                        * fall back to the thumbnail size to maintain backward compatibility with
                        * pre 4.6 versions of WordPress.
                        */
                } elseif ( ! empty( $imagedata['sizes']['thumbnail'] ) && $imagedata['sizes']['thumbnail']['width'] >= $size[0] && $imagedata['sizes']['thumbnail']['width'] >= $size[1] ) {
                        $data = $imagedata['sizes']['thumbnail'];
                } else {
                        return false;
                }

                // Constrain the width and height attributes to the requested values.
                list( $data['width'], $data['height'] ) = image_constrain_size_for_editor( $data['width'], $data['height'], $size );

        } elseif ( ! empty( $imagedata['sizes'][ $size ] ) ) {
                $data = $imagedata['sizes'][ $size ];
        }

        // If we still don't have a match at this point, return false.
        if ( empty( $data ) ) {
                return false;
        }

        // Include the full filesystem path of the intermediate file.
        if ( empty( $data['path'] ) && ! empty( $data['file'] ) && ! empty( $imagedata['file'] ) ) {
                $file_url     = wp_get_attachment_url( $post_id );
                $data['path'] = path_join( dirname( $imagedata['file'] ), $data['file'] );
                $data['url']  = path_join( dirname( $file_url ), $data['file'] );
        }

        /**
         * Filters the output of image_get_intermediate_size()
         *
         * @since 4.4.0
         *
         * @see image_get_intermediate_size()
         *
         * @param array        $data    Array of file relative path, width, and height on success. May also include
         *                              file absolute path and URL.
         * @param int          $post_id The ID of the image attachment.
         * @param string|int[] $size    Requested image size. Can be any registered image size name, or
         *                              an array of width and height values in pixels (in that order).
         */
        return apply_filters( 'image_get_intermediate_size', $data, $post_id, $size );
}

/**
 * Gets the available intermediate image size names.
 *
 * @since 3.0.0
 *
 * @return string[] An array of image size names.
 */
function get_intermediate_image_sizes() {
        $default_sizes    = array( 'thumbnail', 'medium', 'medium_large', 'large' );
        $additional_sizes = wp_get_additional_image_sizes();

        if ( ! empty( $additional_sizes ) ) {
                $default_sizes = array_merge( $default_sizes, array_keys( $additional_sizes ) );
        }

        /**
         * Filters the list of intermediate image sizes.
         *
         * @since 2.5.0
         *
         * @param string[] $default_sizes An array of intermediate image size names. Defaults
         *                                are 'thumbnail', 'medium', 'medium_large', 'large'.
         */
        return apply_filters( 'intermediate_image_sizes', $default_sizes );
}

/**
 * Returns a normalized list of all currently registered image sub-sizes.
 *
 * @since 5.3.0
 * @uses wp_get_additional_image_sizes()
 * @uses get_intermediate_image_sizes()
 *
 * @return array[] Associative array of arrays of image sub-size information,
 *                 keyed by image size name.
 */
function wp_get_registered_image_subsizes() {
        $additional_sizes = wp_get_additional_image_sizes();
        $all_sizes        = array();

        foreach ( get_intermediate_image_sizes() as $size_name ) {
                $size_data = array(
                        'width'  => 0,
                        'height' => 0,
                        'crop'   => false,
                );

                if ( isset( $additional_sizes[ $size_name ]['width'] ) ) {
                        // For sizes added by plugins and themes.
                        $size_data['width'] = (int) $additional_sizes[ $size_name ]['width'];
                } else {
                        // For default sizes set in options.
                        $size_data['width'] = (int) get_option( "{$size_name}_size_w" );
                }

                if ( isset( $additional_sizes[ $size_name ]['height'] ) ) {
                        $size_data['height'] = (int) $additional_sizes[ $size_name ]['height'];
                } else {
                        $size_data['height'] = (int) get_option( "{$size_name}_size_h" );
                }

                if ( empty( $size_data['width'] ) && empty( $size_data['height'] ) ) {
                        // This size isn't set.
                        continue;
                }

                if ( isset( $additional_sizes[ $size_name ]['crop'] ) ) {
                        $size_data['crop'] = $additional_sizes[ $size_name ]['crop'];
                } else {
                        $size_data['crop'] = get_option( "{$size_name}_crop" );
                }

                if ( ! is_array( $size_data['crop'] ) || empty( $size_data['crop'] ) ) {
                        $size_data['crop'] = (bool) $size_data['crop'];
                }

                $all_sizes[ $size_name ] = $size_data;
        }

        return $all_sizes;
}

/**
 * Retrieves an image to represent an attachment.
 *
 * @since 2.5.0
 *
 * @param int          $attachment_id Image attachment ID.
 * @param string|int[] $size          Optional. Image size. Accepts any registered image size name, or an array of
 *                                    width and height values in pixels (in that order). Default 'thumbnail'.
 * @param bool         $icon          Optional. Whether the image should fall back to a mime type icon. Default false.
 * @return array|false {
 *     Array of image data, or boolean false if no image is available.
 *
 *     @type string $0 Image source URL.
 *     @type int    $1 Image width in pixels.
 *     @type int    $2 Image height in pixels.
 *     @type bool   $3 Whether the image is a resized image.
 * }
 */
function wp_get_attachment_image_src( $attachment_id, $size = 'thumbnail', $icon = false ) {
        // Get a thumbnail or intermediate image if there is one.
        $image = image_downsize( $attachment_id, $size );
        if ( ! $image ) {
                $src = false;

                if ( $icon ) {
                        $src = wp_mime_type_icon( $attachment_id, '.svg' );

                        if ( $src ) {
                                /** This filter is documented in wp-includes/post.php */
                                $icon_dir = apply_filters( 'icon_dir', ABSPATH . WPINC . '/images/media' );

                                $src_file = $icon_dir . '/' . wp_basename( $src );

                                list( $width, $height ) = wp_getimagesize( $src_file );

                                $ext = strtolower( substr( $src_file, -4 ) );

                                if ( '.svg' === $ext ) {
                                        // SVG does not have true dimensions, so this assigns width and height directly.
                                        $width  = 48;
                                        $height = 64;
                                } else {
                                        list( $width, $height ) = wp_getimagesize( $src_file );
                                }
                        }
                }

                if ( $src && $width && $height ) {
                        $image = array( $src, $width, $height, false );
                }
        }
        /**
         * Filters the attachment image source result.
         *
         * @since 4.3.0
         *
         * @param array|false  $image         {
         *     Array of image data, or boolean false if no image is available.
         *
         *     @type string $0 Image source URL.
         *     @type int    $1 Image width in pixels.
         *     @type int    $2 Image height in pixels.
         *     @type bool   $3 Whether the image is a resized image.
         * }
         * @param int          $attachment_id Image attachment ID.
         * @param string|int[] $size          Requested image size. Can be any registered image size name, or
         *                                    an array of width and height values in pixels (in that order).
         * @param bool         $icon          Whether the image should be treated as an icon.
         */
        return apply_filters( 'wp_get_attachment_image_src', $image, $attachment_id, $size, $icon );
}

/**
 * Gets an HTML img element representing an image attachment.
 *
 * While `$size` will accept an array, it is better to register a size with
 * add_image_size() so that a cropped version is generated. It's much more
 * efficient than having to find the closest-sized image and then having the
 * browser scale down the image.
 *
 * @since 2.5.0
 * @since 4.4.0 The `$srcset` and `$sizes` attributes were added.
 * @since 5.5.0 The `$loading` attribute was added.
 * @since 6.1.0 The `$decoding` attribute was added.
 *
 * @param int          $attachment_id Image attachment ID.
 * @param string|int[] $size          Optional. Image size. Accepts any registered image size name, or an array
 *                                    of width and height values in pixels (in that order). Default 'thumbnail'.
 * @param bool         $icon          Optional. Whether the image should be treated as an icon. Default false.
 * @param string|array $attr {
 *     Optional. Attributes for the image markup.
 *
 *     @type string       $src           Image attachment URL.
 *     @type string       $class         CSS class name or space-separated list of classes.
 *                                       Default `attachment-$size_class size-$size_class`,
 *                                       where `$size_class` is the image size being requested.
 *     @type string       $alt           Image description for the alt attribute.
 *     @type string       $srcset        The 'srcset' attribute value.
 *     @type string       $sizes         The 'sizes' attribute value.
 *     @type string|false $loading       The 'loading' attribute value. Passing a value of false
 *                                       will result in the attribute being omitted for the image.
 *                                       Default determined by {@see wp_get_loading_optimization_attributes()}.
 *     @type string       $decoding      The 'decoding' attribute value. Possible values are
 *                                       'async' (default), 'sync', or 'auto'. Passing false or an empty
 *                                       string will result in the attribute being omitted.
 *     @type string       $fetchpriority The 'fetchpriority' attribute value, whether `high`, `low`, or `auto`.
 *                                       Default determined by {@see wp_get_loading_optimization_attributes()}.
 * }
 * @return string HTML img element or empty string on failure.
 */
function wp_get_attachment_image( $attachment_id, $size = 'thumbnail', $icon = false, $attr = '' ) {
        $html  = '';
        $image = wp_get_attachment_image_src( $attachment_id, $size, $icon );

        if ( $image ) {
                list( $src, $width, $height ) = $image;

                $attachment = get_post( $attachment_id );
                $hwstring   = image_hwstring( $width, $height );
                $size_class = $size;

                if ( is_array( $size_class ) ) {
                        $size_class = implode( 'x', $size_class );
                }

                $default_attr = array(
                        'src'   => $src,
                        'class' => "attachment-$size_class size-$size_class",
                        'alt'   => trim( strip_tags( get_post_meta( $attachment_id, '_wp_attachment_image_alt', true ) ) ),
                );

                /**
                 * Filters the context in which wp_get_attachment_image() is used.
                 *
                 * @since 6.3.0
                 *
                 * @param string $context The context. Default 'wp_get_attachment_image'.
                 */
                $context = apply_filters( 'wp_get_attachment_image_context', 'wp_get_attachment_image' );
                $attr    = wp_parse_args( $attr, $default_attr );

                $loading_attr              = $attr;
                $loading_attr['width']     = $width;
                $loading_attr['height']    = $height;
                $loading_optimization_attr = wp_get_loading_optimization_attributes(
                        'img',
                        $loading_attr,
                        $context
                );

                // Add loading optimization attributes if not available.
                $attr = array_merge( $attr, $loading_optimization_attr );

                // Omit the `decoding` attribute if the value is invalid according to the spec.
                if ( empty( $attr['decoding'] ) || ! in_array( $attr['decoding'], array( 'async', 'sync', 'auto' ), true ) ) {
                        unset( $attr['decoding'] );
                }

                /*
                 * If the default value of `lazy` for the `loading` attribute is overridden
                 * to omit the attribute for this image, ensure it is not included.
                 */
                if ( isset( $attr['loading'] ) && ! $attr['loading'] ) {
                        unset( $attr['loading'] );
                }

                // If the `fetchpriority` attribute is overridden and set to false or an empty string.
                if ( isset( $attr['fetchpriority'] ) && ! $attr['fetchpriority'] ) {
                        unset( $attr['fetchpriority'] );
                }

                // Generate 'srcset' and 'sizes' if not already present.
                if ( empty( $attr['srcset'] ) ) {
                        $image_meta = wp_get_attachment_metadata( $attachment_id );

                        if ( is_array( $image_meta ) ) {
                                $size_array = array( absint( $width ), absint( $height ) );
                                $srcset     = wp_calculate_image_srcset( $size_array, $src, $image_meta, $attachment_id );
                                $sizes      = wp_calculate_image_sizes( $size_array, $src, $image_meta, $attachment_id );

                                if ( $srcset && ( $sizes || ! empty( $attr['sizes'] ) ) ) {
                                        $attr['srcset'] = $srcset;

                                        if ( empty( $attr['sizes'] ) ) {
                                                $attr['sizes'] = $sizes;
                                        }
                                }
                        }
                }

                /** This filter is documented in wp-includes/media.php */
                $add_auto_sizes = apply_filters( 'wp_img_tag_add_auto_sizes', true );

                // Adds 'auto' to the sizes attribute if applicable.
                if (
                        $add_auto_sizes &&
                        isset( $attr['loading'] ) &&
                        'lazy' === $attr['loading'] &&
                        isset( $attr['sizes'] ) &&
                        ! wp_sizes_attribute_includes_valid_auto( $attr['sizes'] )
                ) {
                        $attr['sizes'] = 'auto, ' . $attr['sizes'];
                }

                /**
                 * Filters the list of attachment image attributes.
                 *
                 * @since 2.8.0
                 *
                 * @param string[]     $attr       Array of attribute values for the image markup, keyed by attribute name.
                 *                                 See wp_get_attachment_image().
                 * @param WP_Post      $attachment Image attachment post.
                 * @param string|int[] $size       Requested image size. Can be any registered image size name, or
                 *                                 an array of width and height values in pixels (in that order).
                 */
                $attr = apply_filters( 'wp_get_attachment_image_attributes', $attr, $attachment, $size );

                $attr = array_map( 'esc_attr', $attr );
                $html = rtrim( "<img $hwstring" );

                foreach ( $attr as $name => $value ) {
                        $html .= " $name=" . '"' . $value . '"';
                }

                $html .= ' />';
        }

        /**
         * Filters the HTML img element representing an image attachment.
         *
         * @since 5.6.0
         *
         * @param string       $html          HTML img element or empty string on failure.
         * @param int          $attachment_id Image attachment ID.
         * @param string|int[] $size          Requested image size. Can be any registered image size name, or
         *                                    an array of width and height values in pixels (in that order).
         * @param bool         $icon          Whether the image should be treated as an icon.
         * @param string[]     $attr          Array of attribute values for the image markup, keyed by attribute name.
         *                                    See wp_get_attachment_image().
         */
        return apply_filters( 'wp_get_attachment_image', $html, $attachment_id, $size, $icon, $attr );
}

/**
 * Gets the URL of an image attachment.
 *
 * @since 4.4.0
 *
 * @param int          $attachment_id Image attachment ID.
 * @param string|int[] $size          Optional. Image size. Accepts any registered image size name, or an array of
 *                                    width and height values in pixels (in that order). Default 'thumbnail'.
 * @param bool         $icon          Optional. Whether the image should be treated as an icon. Default false.
 * @return string|false Attachment URL or false if no image is available. If `$size` does not match
 *                      any registered image size, the original image URL will be returned.
 */
function wp_get_attachment_image_url( $attachment_id, $size = 'thumbnail', $icon = false ) {
        $image = wp_get_attachment_image_src( $attachment_id, $size, $icon );
        return isset( $image[0] ) ? $image[0] : false;
}

/**
 * Gets the attachment path relative to the upload directory.
 *
 * @since 4.4.1
 * @access private
 *
 * @param string $file Attachment file name.
 * @return string Attachment path relative to the upload directory.
 */
function _wp_get_attachment_relative_path( $file ) {
        $dirname = dirname( $file );

        if ( '.' === $dirname ) {
                return '';
        }

        if ( str_contains( $dirname, 'wp-content/uploads' ) ) {
                // Get the directory name relative to the upload directory (back compat for pre-2.7 uploads).
                $dirname = substr( $dirname, strpos( $dirname, 'wp-content/uploads' ) + 18 );
                $dirname = ltrim( $dirname, '/' );
        }

        return $dirname;
}

/**
 * Gets the image size as array from its meta data.
 *
 * Used for responsive images.
 *
 * @since 4.4.0
 * @access private
 *
 * @param string $size_name  Image size. Accepts any registered image size name.
 * @param array  $image_meta The image meta data.
 * @return array|false {
 *     Array of width and height or false if the size isn't present in the meta data.
 *
 *     @type int $0 Image width.
 *     @type int $1 Image height.
 * }
 */
function _wp_get_image_size_from_meta( $size_name, $image_meta ) {
        if ( 'full' === $size_name ) {
                return array(
                        absint( $image_meta['width'] ),
                        absint( $image_meta['height'] ),
                );
        } elseif ( ! empty( $image_meta['sizes'][ $size_name ] ) ) {
                return array(
                        absint( $image_meta['sizes'][ $size_name ]['width'] ),
                        absint( $image_meta['sizes'][ $size_name ]['height'] ),
                );
        }

        return false;
}

/**
 * Retrieves the value for an image attachment's 'srcset' attribute.
 *
 * @since 4.4.0
 *
 * @see wp_calculate_image_srcset()
 *
 * @param int          $attachment_id Image attachment ID.
 * @param string|int[] $size          Optional. Image size. Accepts any registered image size name, or an array of
 *                                    width and height values in pixels (in that order). Default 'medium'.
 * @param array|null   $image_meta    Optional. The image meta data as returned by 'wp_get_attachment_metadata()'.
 *                                    Default null.
 * @return string|false A 'srcset' value string or false.
 */
function wp_get_attachment_image_srcset( $attachment_id, $size = 'medium', $image_meta = null ) {
        $image = wp_get_attachment_image_src( $attachment_id, $size );

        if ( ! $image ) {
                return false;
        }

        if ( ! is_array( $image_meta ) ) {
                $image_meta = wp_get_attachment_metadata( $attachment_id );
        }

        $image_src  = $image[0];
        $size_array = array(
                absint( $image[1] ),
                absint( $image[2] ),
        );

        return wp_calculate_image_srcset( $size_array, $image_src, $image_meta, $attachment_id );
}

/**
 * A helper function to calculate the image sources to include in a 'srcset' attribute.
 *
 * @since 4.4.0
 *
 * @param int[]  $size_array    {
 *     An array of width and height values.
 *
 *     @type int $0 The width in pixels.
 *     @type int $1 The height in pixels.
 * }
 * @param string $image_src     The 'src' of the image.
 * @param array  $image_meta    The image meta data as returned by 'wp_get_attachment_metadata()'.
 * @param int    $attachment_id Optional. The image attachment ID. Default 0.
 * @return string|false The 'srcset' attribute value. False on error or when only one source exists.
 */
function wp_calculate_image_srcset( $size_array, $image_src, $image_meta, $attachment_id = 0 ) {
        /**
         * Pre-filters the image meta to be able to fix inconsistencies in the stored data.
         *
         * @since 4.5.0
         *
         * @param array  $image_meta    The image meta data as returned by 'wp_get_attachment_metadata()'.
         * @param int[]  $size_array    {
         *     An array of requested width and height values.
         *
         *     @type int $0 The width in pixels.
         *     @type int $1 The height in pixels.
         * }
         * @param string $image_src     The 'src' of the image.
         * @param int    $attachment_id The image attachment ID or 0 if not supplied.
         */
        $image_meta = apply_filters( 'wp_calculate_image_srcset_meta', $image_meta, $size_array, $image_src, $attachment_id );

        if ( empty( $image_meta['sizes'] ) || ! isset( $image_meta['file'] ) || strlen( $image_meta['file'] ) < 4 ) {
                return false;
        }

        $image_sizes = $image_meta['sizes'];

        // Get the width and height of the image.
        $image_width  = (int) $size_array[0];
        $image_height = (int) $size_array[1];

        // Bail early if error/no width.
        if ( $image_width < 1 ) {
                return false;
        }

        $image_basename = wp_basename( $image_meta['file'] );

        /*
         * WordPress flattens animated GIFs into one frame when generating intermediate sizes.
         * To avoid hiding animation in user content, if src is a full size GIF, a srcset attribute is not generated.
         * If src is an intermediate size GIF, the full size is excluded from srcset to keep a flattened GIF from becoming animated.
         */
        if ( ! isset( $image_sizes['thumbnail']['mime-type'] ) || 'image/gif' !== $image_sizes['thumbnail']['mime-type'] ) {
                $image_sizes[] = array(
                        'width'  => $image_meta['width'],
                        'height' => $image_meta['height'],
                        'file'   => $image_basename,
                );
        } elseif ( str_contains( $image_src, $image_meta['file'] ) ) {
                return false;
        }

        // Retrieve the uploads sub-directory from the full size image.
        $dirname = _wp_get_attachment_relative_path( $image_meta['file'] );

        if ( $dirname ) {
                $dirname = trailingslashit( $dirname );
        }

        $upload_dir    = wp_get_upload_dir();
        $image_baseurl = trailingslashit( $upload_dir['baseurl'] ) . $dirname;

        /*
         * If currently on HTTPS, prefer HTTPS URLs when we know they're supported by the domain
         * (which is to say, when they share the domain name of the current request).
         */
        if ( is_ssl() && ! str_starts_with( $image_baseurl, 'https' ) ) {
                /*
                 * Since the `Host:` header might contain a port, it should
                 * be compared against the image URL using the same port.
                 */
                $parsed = parse_url( $image_baseurl );
                $domain = isset( $parsed['host'] ) ? $parsed['host'] : '';

                if ( isset( $parsed['port'] ) ) {
                        $domain .= ':' . $parsed['port'];
                }

                if ( $_SERVER['HTTP_HOST'] === $domain ) {
                        $image_baseurl = set_url_scheme( $image_baseurl, 'https' );
                }
        }

        /*
         * Images that have been edited in WordPress after being uploaded will
         * contain a unique hash. Look for that hash and use it later to filter
         * out images that are leftovers from previous versions.
         */
        $image_edited = preg_match( '/-e[0-9]{13}/', wp_basename( $image_src ), $image_edit_hash );

        /**
         * Filters the maximum image width to be included in a 'srcset' attribute.
         *
         * @since 4.4.0
         *
         * @param int   $max_width  The maximum image width to be included in the 'srcset'. Default '2048'.
         * @param int[] $size_array {
         *     An array of requested width and height values.
         *
         *     @type int $0 The width in pixels.
         *     @type int $1 The height in pixels.
         * }
         */
        $max_srcset_image_width = apply_filters( 'max_srcset_image_width', 2048, $size_array );

        // Array to hold URL candidates.
        $sources = array();

        /**
         * To make sure the ID matches our image src, we will check to see if any sizes in our attachment
         * meta match our $image_src. If no matches are found we don't return a srcset to avoid serving
         * an incorrect image. See #35045.
         */
        $src_matched = false;

        /*
         * Loop through available images. Only use images that are resized
         * versions of the same edit.
         */
        foreach ( $image_sizes as $image ) {
                $is_src = false;

                // Check if image meta isn't corrupted.
                if ( ! is_array( $image ) ) {
                        continue;
                }

                // If the file name is part of the `src`, we've confirmed a match.
                if ( ! $src_matched && str_contains( $image_src, $dirname . $image['file'] ) ) {
                        $src_matched = true;
                        $is_src      = true;
                }

                // Filter out images that are from previous edits.
                if ( $image_edited && ! strpos( $image['file'], $image_edit_hash[0] ) ) {
                        continue;
                }

                /*
                 * Filters out images that are wider than '$max_srcset_image_width' unless
                 * that file is in the 'src' attribute.
                 */
                if ( $max_srcset_image_width && $image['width'] > $max_srcset_image_width && ! $is_src ) {
                        continue;
                }

                // If the image dimensions are within 1px of the expected size, use it.
                if ( wp_image_matches_ratio( $image_width, $image_height, $image['width'], $image['height'] ) ) {
                        // Add the URL, descriptor, and value to the sources array to be returned.
                        $source = array(
                                'url'        => $image_baseurl . $image['file'],
                                'descriptor' => 'w',
                                'value'      => $image['width'],
                        );

                        // The 'src' image has to be the first in the 'srcset', because of a bug in iOS8. See #35030.
                        if ( $is_src ) {
                                $sources = array( $image['width'] => $source ) + $sources;
                        } else {
                                $sources[ $image['width'] ] = $source;
                        }
                }
        }

        /**
         * Filters an image's 'srcset' sources.
         *
         * @since 4.4.0
         *
         * @param array  $sources {
         *     One or more arrays of source data to include in the 'srcset'.
         *
         *     @type array $width {
         *         @type string $url        The URL of an image source.
         *         @type string $descriptor The descriptor type used in the image candidate string,
         *                                  either 'w' or 'x'.
         *         @type int    $value      The source width if paired with a 'w' descriptor, or a
         *                                  pixel density value if paired with an 'x' descriptor.
         *     }
         * }
         * @param array $size_array     {
         *     An array of requested width and height values.
         *
         *     @type int $0 The width in pixels.
         *     @type int $1 The height in pixels.
         * }
         * @param string $image_src     The 'src' of the image.
         * @param array  $image_meta    The image meta data as returned by 'wp_get_attachment_metadata()'.
         * @param int    $attachment_id Image attachment ID or 0.
         */
        $sources = apply_filters( 'wp_calculate_image_srcset', $sources, $size_array, $image_src, $image_meta, $attachment_id );

        // Only return a 'srcset' value if there is more than one source.
        if ( ! $src_matched || ! is_array( $sources ) || count( $sources ) < 2 ) {
                return false;
        }

        $srcset = '';

        foreach ( $sources as $source ) {
                $srcset .= str_replace( ' ', '%20', $source['url'] ) . ' ' . $source['value'] . $source['descriptor'] . ', ';
        }

        return rtrim( $srcset, ', ' );
}

/**
 * Retrieves the value for an image attachment's 'sizes' attribute.
 *
 * @since 4.4.0
 *
 * @see wp_calculate_image_sizes()
 *
 * @param int          $attachment_id Image attachment ID.
 * @param string|int[] $size          Optional. Image size. Accepts any registered image size name, or an array of
 *                                    width and height values in pixels (in that order). Default 'medium'.
 * @param array|null   $image_meta    Optional. The image meta data as returned by 'wp_get_attachment_metadata()'.
 *                                    Default null.
 * @return string|false A valid source size value for use in a 'sizes' attribute or false.
 */
function wp_get_attachment_image_sizes( $attachment_id, $size = 'medium', $image_meta = null ) {
        $image = wp_get_attachment_image_src( $attachment_id, $size );

        if ( ! $image ) {
                return false;
        }

        if ( ! is_array( $image_meta ) ) {
                $image_meta = wp_get_attachment_metadata( $attachment_id );
        }

        $image_src  = $image[0];
        $size_array = array(
                absint( $image[1] ),
                absint( $image[2] ),
        );

        return wp_calculate_image_sizes( $size_array, $image_src, $image_meta, $attachment_id );
}

/**
 * Creates a 'sizes' attribute value for an image.
 *
 * @since 4.4.0
 *
 * @param string|int[] $size          Image size. Accepts any registered image size name, or an array of
 *                                    width and height values in pixels (in that order).
 * @param string|null  $image_src     Optional. The URL to the image file. Default null.
 * @param array|null   $image_meta    Optional. The image meta data as returned by 'wp_get_attachment_metadata()'.
 *                                    Default null.
 * @param int          $attachment_id Optional. Image attachment ID. Either `$image_meta` or `$attachment_id`
 *                                    is needed when using the image size name as argument for `$size`. Default 0.
 * @return string|false A valid source size value for use in a 'sizes' attribute or false.
 */
function wp_calculate_image_sizes( $size, $image_src = null, $image_meta = null, $attachment_id = 0 ) {
        $width = 0;

        if ( is_array( $size ) ) {
                $width = absint( $size[0] );
        } elseif ( is_string( $size ) ) {
                if ( ! $image_meta && $attachment_id ) {
                        $image_meta = wp_get_attachment_metadata( $attachment_id );
                }

                if ( is_array( $image_meta ) ) {
                        $size_array = _wp_get_image_size_from_meta( $size, $image_meta );
                        if ( $size_array ) {
                                $width = absint( $size_array[0] );
                        }
                }
        }

        if ( ! $width ) {
                return false;
        }

        // Setup the default 'sizes' attribute.
        $sizes = sprintf( '(max-width: %1$dpx) 100vw, %1$dpx', $width );

        /**
         * Filters the output of 'wp_calculate_image_sizes()'.
         *
         * @since 4.4.0
         *
         * @param string       $sizes         A source size value for use in a 'sizes' attribute.
         * @param string|int[] $size          Requested image size. Can be any registered image size name, or
         *                                    an array of width and height values in pixels (in that order).
         * @param string|null  $image_src     The URL to the image file or null.
         * @param array|null   $image_meta    The image meta data as returned by wp_get_attachment_metadata() or null.
         * @param int          $attachment_id Image attachment ID of the original image or 0.
         */
        return apply_filters( 'wp_calculate_image_sizes', $sizes, $size, $image_src, $image_meta, $attachment_id );
}

/**
 * Determines if the image meta data is for the image source file.
 *
 * The image meta data is retrieved by attachment post ID. In some cases the post IDs may change.
 * For example when the website is exported and imported at another website. Then the
 * attachment post IDs that are in post_content for the exported website may not match
 * the same attachments at the new website.
 *
 * @since 5.5.0
 *
 * @param string $image_location The full path or URI to the image file.
 * @param array  $image_meta     The attachment meta data as returned by 'wp_get_attachment_metadata()'.
 * @param int    $attachment_id  Optional. The image attachment ID. Default 0.
 * @return bool Whether the image meta is for this image file.
 */
function wp_image_file_matches_image_meta( $image_location, $image_meta, $attachment_id = 0 ) {
        $match = false;

        // Ensure the $image_meta is valid.
        if ( isset( $image_meta['file'] ) && strlen( $image_meta['file'] ) > 4 ) {
                // Remove query args in image URI.
                list( $image_location ) = explode( '?', $image_location );

                // Check if the relative image path from the image meta is at the end of $image_location.
                if ( strrpos( $image_location, $image_meta['file'] ) === strlen( $image_location ) - strlen( $image_meta['file'] ) ) {
                        $match = true;
                } else {
                        // Retrieve the uploads sub-directory from the full size image.
                        $dirname = _wp_get_attachment_relative_path( $image_meta['file'] );

                        if ( $dirname ) {
                                $dirname = trailingslashit( $dirname );
                        }

                        if ( ! empty( $image_meta['original_image'] ) ) {
                                $relative_path = $dirname . $image_meta['original_image'];

                                if ( strrpos( $image_location, $relative_path ) === strlen( $image_location ) - strlen( $relative_path ) ) {
                                        $match = true;
                                }
                        }

                        if ( ! $match && ! empty( $image_meta['sizes'] ) ) {
                                foreach ( $image_meta['sizes'] as $image_size_data ) {
                                        $relative_path = $dirname . $image_size_data['file'];

                                        if ( strrpos( $image_location, $relative_path ) === strlen( $image_location ) - strlen( $relative_path ) ) {
                                                $match = true;
                                                break;
                                        }
                                }
                        }
                }
        }

        /**
         * Filters whether an image path or URI matches image meta.
         *
         * @since 5.5.0
         *
         * @param bool   $match          Whether the image relative path from the image meta
         *                               matches the end of the URI or path to the image file.
         * @param string $image_location Full path or URI to the tested image file.
         * @param array  $image_meta     The image meta data as returned by 'wp_get_attachment_metadata()'.
         * @param int    $attachment_id  The image attachment ID or 0 if not supplied.
         */
        return apply_filters( 'wp_image_file_matches_image_meta', $match, $image_location, $image_meta, $attachment_id );
}

/**
 * Determines an image's width and height dimensions based on the source file.
 *
 * @since 5.5.0
 *
 * @param string $image_src     The image source file.
 * @param array  $image_meta    The image meta data as returned by 'wp_get_attachment_metadata()'.
 * @param int    $attachment_id Optional. The image attachment ID. Default 0.
 * @return array|false Array with first element being the width and second element being the height,
 *                     or false if dimensions cannot be determined.
 */
function wp_image_src_get_dimensions( $image_src, $image_meta, $attachment_id = 0 ) {
        $dimensions = false;

        // Is it a full size image?
        if (
                isset( $image_meta['file'] ) &&
                str_contains( $image_src, wp_basename( $image_meta['file'] ) )
        ) {
                $dimensions = array(
                        (int) $image_meta['width'],
                        (int) $image_meta['height'],
                );
        }

        if ( ! $dimensions && ! empty( $image_meta['sizes'] ) ) {
                $src_filename = wp_basename( $image_src );

                foreach ( $image_meta['sizes'] as $image_size_data ) {
                        if ( $src_filename === $image_size_data['file'] ) {
                                $dimensions = array(
                                        (int) $image_size_data['width'],
                                        (int) $image_size_data['height'],
                                );

                                break;
                        }
                }
        }

        /**
         * Filters the 'wp_image_src_get_dimensions' value.
         *
         * @since 5.7.0
         *
         * @param array|false $dimensions    Array with first element being the width
         *                                   and second element being the height, or
         *                                   false if dimensions could not be determined.
         * @param string      $image_src     The image source file.
         * @param array       $image_meta    The image meta data as returned by
         *                                   'wp_get_attachment_metadata()'.
         * @param int         $attachment_id The image attachment ID. Default 0.
         */
        return apply_filters( 'wp_image_src_get_dimensions', $dimensions, $image_src, $image_meta, $attachment_id );
}

/**
 * Adds 'srcset' and 'sizes' attributes to an existing 'img' element.
 *
 * @since 4.4.0
 *
 * @see wp_calculate_image_srcset()
 * @see wp_calculate_image_sizes()
 *
 * @param string $image         An HTML 'img' element to be filtered.
 * @param array  $image_meta    The image meta data as returned by 'wp_get_attachment_metadata()'.
 * @param int    $attachment_id Image attachment ID.
 * @return string Converted 'img' element with 'srcset' and 'sizes' attributes added.
 */
function wp_image_add_srcset_and_sizes( $image, $image_meta, $attachment_id ) {
        // Ensure the image meta exists.
        if ( empty( $image_meta['sizes'] ) ) {
                return $image;
        }

        $image_src         = preg_match( '/src="([^"]+)"/', $image, $match_src ) ? $match_src[1] : '';
        list( $image_src ) = explode( '?', $image_src );

        // Return early if we couldn't get the image source.
        if ( ! $image_src ) {
                return $image;
        }

        // Bail early if an image has been inserted and later edited.
        if ( preg_match( '/-e[0-9]{13}/', $image_meta['file'], $img_edit_hash )
                && ! str_contains( wp_basename( $image_src ), $img_edit_hash[0] )
        ) {
                return $image;
        }

        $width  = preg_match( '/ width="([0-9]+)"/', $image, $match_width ) ? (int) $match_width[1] : 0;
        $height = preg_match( '/ height="([0-9]+)"/', $image, $match_height ) ? (int) $match_height[1] : 0;

        if ( $width && $height ) {
                $size_array = array( $width, $height );
        } else {
                $size_array = wp_image_src_get_dimensions( $image_src, $image_meta, $attachment_id );
                if ( ! $size_array ) {
                        return $image;
                }
        }

        $srcset = wp_calculate_image_srcset( $size_array, $image_src, $image_meta, $attachment_id );

        if ( $srcset ) {
                // Check if there is already a 'sizes' attribute.
                $sizes = strpos( $image, ' sizes=' );

                if ( ! $sizes ) {
                        $sizes = wp_calculate_image_sizes( $size_array, $image_src, $image_meta, $attachment_id );
                }
        }

        if ( $srcset && $sizes ) {
                // Format the 'srcset' and 'sizes' string and escape attributes.
                $attr = sprintf( ' srcset="%s"', esc_attr( $srcset ) );

                if ( is_string( $sizes ) ) {
                        $attr .= sprintf( ' sizes="%s"', esc_attr( $sizes ) );
                }

                // Add the srcset and sizes attributes to the image markup.
                return preg_replace( '/<img ([^>]+?)[\/ ]*>/', '<img $1' . $attr . ' />', $image );
        }

        return $image;
}

/**
 * Determines whether to add the `loading` attribute to the specified tag in the specified context.
 *
 * @since 5.5.0
 * @since 5.7.0 Now returns `true` by default for `iframe` tags.
 *
 * @param string $tag_name The tag name.
 * @param string $context  Additional context, like the current filter name
 *                         or the function name from where this was called.
 * @return bool Whether to add the attribute.
 */
function wp_lazy_loading_enabled( $tag_name, $context ) {
        /*
         * By default add to all 'img' and 'iframe' tags.
         * See https://html.spec.whatwg.org/multipage/embedded-content.html#attr-img-loading
         * See https://html.spec.whatwg.org/multipage/iframe-embed-object.html#attr-iframe-loading
         */
        $default = ( 'img' === $tag_name || 'iframe' === $tag_name );

        /**
         * Filters whether to add the `loading` attribute to the specified tag in the specified context.
         *
         * @since 5.5.0
         *
         * @param bool   $default  Default value.
         * @param string $tag_name The tag name.
         * @param string $context  Additional context, like the current filter name
         *                         or the function name from where this was called.
         */
        return (bool) apply_filters( 'wp_lazy_loading_enabled', $default, $tag_name, $context );
}

/**
 * Filters specific tags in post content and modifies their markup.
 *
 * Modifies HTML tags in post content to include new browser and HTML technologies
 * that may not have existed at the time of post creation. These modifications currently
 * include adding `srcset`, `sizes`, and `loading` attributes to `img` HTML tags, as well
 * as adding `loading` attributes to `iframe` HTML tags.
 * Future similar optimizations should be added/expected here.
 *
 * @since 5.5.0
 * @since 5.7.0 Now supports adding `loading` attributes to `iframe` tags.
 *
 * @see wp_img_tag_add_width_and_height_attr()
 * @see wp_img_tag_add_srcset_and_sizes_attr()
 * @see wp_img_tag_add_loading_optimization_attrs()
 * @see wp_iframe_tag_add_loading_attr()
 *
 * @param string $content The HTML content to be filtered.
 * @param string $context Optional. Additional context to pass to the filters.
 *                        Defaults to `current_filter()` when not set.
 * @return string Converted content with images modified.
 */
function wp_filter_content_tags( $content, $context = null ) {
        if ( null === $context ) {
                $context = current_filter();
        }

        $add_iframe_loading_attr = wp_lazy_loading_enabled( 'iframe', $context );

        if ( ! preg_match_all( '/<(img|iframe)\s[^>]+>/', $content, $matches, PREG_SET_ORDER ) ) {
                return $content;
        }

        // List of the unique `img` tags found in $content.
        $images = array();

        // List of the unique `iframe` tags found in $content.
        $iframes = array();

        foreach ( $matches as $match ) {
                list( $tag, $tag_name ) = $match;

                switch ( $tag_name ) {
                        case 'img':
                                if ( preg_match( '/wp-image-([0-9]+)/i', $tag, $class_id ) ) {
                                        $attachment_id = absint( $class_id[1] );

                                        if ( $attachment_id ) {
                                                /*
                                                 * If exactly the same image tag is used more than once, overwrite it.
                                                 * All identical tags will be replaced later with 'str_replace()'.
                                                 */
                                                $images[ $tag ] = $attachment_id;
                                                break;
                                        }
                                }
                                $images[ $tag ] = 0;
                                break;
                        case 'iframe':
                                $iframes[ $tag ] = 0;
                                break;
                }
        }

        // Reduce the array to unique attachment IDs.
        $attachment_ids = array_unique( array_filter( array_values( $images ) ) );

        if ( count( $attachment_ids ) > 1 ) {
                /*
                 * Warm the object cache with post and meta information for all found
                 * images to avoid making individual database calls.
                 */
                _prime_post_caches( $attachment_ids, false, true );
        }

        // Iterate through the matches in order of occurrence as it is relevant for whether or not to lazy-load.
        foreach ( $matches as $match ) {
                // Filter an image match.
                if ( isset( $images[ $match[0] ] ) ) {
                        $filtered_image = $match[0];
                        $attachment_id  = $images[ $match[0] ];

                        // Add 'width' and 'height' attributes if applicable.
                        if ( $attachment_id > 0 && ! str_contains( $filtered_image, ' width=' ) && ! str_contains( $filtered_image, ' height=' ) ) {
                                $filtered_image = wp_img_tag_add_width_and_height_attr( $filtered_image, $context, $attachment_id );
                        }

                        // Add 'srcset' and 'sizes' attributes if applicable.
                        if ( $attachment_id > 0 && ! str_contains( $filtered_image, ' srcset=' ) ) {
                                $filtered_image = wp_img_tag_add_srcset_and_sizes_attr( $filtered_image, $context, $attachment_id );
                        }

                        // Add loading optimization attributes if applicable.
                        $filtered_image = wp_img_tag_add_loading_optimization_attrs( $filtered_image, $context );

                        // Adds 'auto' to the sizes attribute if applicable.
                        $filtered_image = wp_img_tag_add_auto_sizes( $filtered_image );

                        /**
                         * Filters an img tag within the content for a given context.
                         *
                         * @since 6.0.0
                         *
                         * @param string $filtered_image Full img tag with attributes that will replace the source img tag.
                         * @param string $context        Additional context, like the current filter name or the function name from where this was called.
                         * @param int    $attachment_id  The image attachment ID. May be 0 in case the image is not an attachment.
                         */
                        $filtered_image = apply_filters( 'wp_content_img_tag', $filtered_image, $context, $attachment_id );

                        if ( $filtered_image !== $match[0] ) {
                                $content = str_replace( $match[0], $filtered_image, $content );
                        }

                        /*
                         * Unset image lookup to not run the same logic again unnecessarily if the same image tag is used more than
                         * once in the same blob of content.
                         */
                        unset( $images[ $match[0] ] );
                }

                // Filter an iframe match.
                if ( isset( $iframes[ $match[0] ] ) ) {
                        $filtered_iframe = $match[0];

                        // Add 'loading' attribute if applicable.
                        if ( $add_iframe_loading_attr && ! str_contains( $filtered_iframe, ' loading=' ) ) {
                                $filtered_iframe = wp_iframe_tag_add_loading_attr( $filtered_iframe, $context );
                        }

                        if ( $filtered_iframe !== $match[0] ) {
                                $content = str_replace( $match[0], $filtered_iframe, $content );
                        }

                        /*
                         * Unset iframe lookup to not run the same logic again unnecessarily if the same iframe tag is used more
                         * than once in the same blob of content.
                         */
                        unset( $iframes[ $match[0] ] );
                }
        }

        return $content;
}

/**
 * Adds 'auto' to the sizes attribute to the image, if the image is lazy loaded and does not already include it.
 *
 * @since 6.7.0
 *
 * @param string $image The image tag markup being filtered.
 * @return string The filtered image tag markup.
 */
function wp_img_tag_add_auto_sizes( string $image ): string {
        /**
         * Filters whether auto-sizes for lazy loaded images is enabled.
         *
         * @since 6.7.1
         *
         * @param boolean $enabled Whether auto-sizes for lazy loaded images is enabled.
         */
        if ( ! apply_filters( 'wp_img_tag_add_auto_sizes', true ) ) {
                return $image;
        }

        $processor = new WP_HTML_Tag_Processor( $image );

        // Bail if there is no IMG tag.
        if ( ! $processor->next_tag( array( 'tag_name' => 'IMG' ) ) ) {
                return $image;
        }

        // Bail early if the image is not lazy-loaded.
        $loading = $processor->get_attribute( 'loading' );
        if ( ! is_string( $loading ) || 'lazy' !== strtolower( trim( $loading, " \t\f\r\n" ) ) ) {
                return $image;
        }

        /*
         * Bail early if the image doesn't have a width attribute.
         * Per WordPress Core itself, lazy-loaded images should always have a width attribute.
         * However, it is possible that lazy-loading could be added by a plugin, where we don't have that guarantee.
         * As such, it still makes sense to ensure presence of a width attribute here in order to use `sizes=auto`.
         */
        $width = $processor->get_attribute( 'width' );
        if ( ! is_string( $width ) || '' === $width ) {
                return $image;
        }

        $sizes = $processor->get_attribute( 'sizes' );

        // Bail early if the image is not responsive.
        if ( ! is_string( $sizes ) ) {
                return $image;
        }

        // Don't add 'auto' to the sizes attribute if it already exists.
        if ( wp_sizes_attribute_includes_valid_auto( $sizes ) ) {
                return $image;
        }

        $processor->set_attribute( 'sizes', "auto, $sizes" );
        return $processor->get_updated_html();
}

/**
 * Checks whether the given 'sizes' attribute includes the 'auto' keyword as the first item in the list.
 *
 * Per the HTML spec, if present it must be the first entry.
 *
 * @since 6.7.0
 *
 * @param string $sizes_attr The 'sizes' attribute value.
 * @return bool True if the 'auto' keyword is present, false otherwise.
 */
function wp_sizes_attribute_includes_valid_auto( string $sizes_attr ): bool {
        list( $first_size ) = explode( ',', $sizes_attr, 2 );
        return 'auto' === strtolower( trim( $first_size, " \t\f\r\n" ) );
}

/**
 * Prints a CSS rule to fix potential visual issues with images using `sizes=auto`.
 *
 * This rule overrides the similar rule in the default user agent stylesheet, to avoid images that use e.g.
 * `width: auto` or `width: fit-content` to appear smaller.
 *
 * @since 6.7.1
 * @see https://html.spec.whatwg.org/multipage/rendering.html#img-contain-size
 * @see https://core.trac.wordpress.org/ticket/62413
 */
function wp_print_auto_sizes_contain_css_fix() {
        /** This filter is documented in wp-includes/media.php */
        $add_auto_sizes = apply_filters( 'wp_img_tag_add_auto_sizes', true );
        if ( ! $add_auto_sizes ) {
                return;
        }

        ?>
        <style>img:is([sizes="auto" i], [sizes^="auto," i]) { contain-intrinsic-size: 3000px 1500px }</style>
        <?php
}

/**
 * Adds optimization attributes to an `img` HTML tag.
 *
 * @since 6.3.0
 *
 * @param string $image   The HTML `img` tag where the attribute should be added.
 * @param string $context Additional context to pass to the filters.
 * @return string Converted `img` tag with optimization attributes added.
 */
function wp_img_tag_add_loading_optimization_attrs( $image, $context ) {
        $src               = preg_match( '/ src=["\']?([^"\']*)/i', $image, $matche_src ) ? $matche_src[1] : null;
        $width             = preg_match( '/ width=["\']([0-9]+)["\']/', $image, $match_width ) ? (int) $match_width[1] : null;
        $height            = preg_match( '/ height=["\']([0-9]+)["\']/', $image, $match_height ) ? (int) $match_height[1] : null;
        $loading_val       = preg_match( '/ loading=["\']([A-Za-z]+)["\']/', $image, $match_loading ) ? $match_loading[1] : null;
        $fetchpriority_val = preg_match( '/ fetchpriority=["\']([A-Za-z]+)["\']/', $image, $match_fetchpriority ) ? $match_fetchpriority[1] : null;
        $decoding_val      = preg_match( '/ decoding=["\']([A-Za-z]+)["\']/', $image, $match_decoding ) ? $match_decoding[1] : null;

        /*
         * Get loading optimization attributes to use.
         * This must occur before the conditional check below so that even images
         * that are ineligible for being lazy-loaded are considered.
         */
        $optimization_attrs = wp_get_loading_optimization_attributes(
                'img',
                array(
                        'src'           => $src,
                        'width'         => $width,
                        'height'        => $height,
                        'loading'       => $loading_val,
                        'fetchpriority' => $fetchpriority_val,
                        'decoding'      => $decoding_val,
                ),
                $context
        );

        // Images should have source for the loading optimization attributes to be added.
        if ( ! str_contains( $image, ' src="' ) ) {
                return $image;
        }

        if ( empty( $decoding_val ) ) {
                /**
                 * Filters the `decoding` attribute value to add to an image. Default `async`.
                 *
                 * Returning a falsey value will omit the attribute.
                 *
                 * @since 6.1.0
                 *
                 * @param string|false|null $value      The `decoding` attribute value. Returning a falsey value
                 *                                      will result in the attribute being omitted for the image.
                 *                                      Otherwise, it may be: 'async', 'sync', or 'auto'. Defaults to false.
                 * @param string            $image      The HTML `img` tag to be filtered.
                 * @param string            $context    Additional context about how the function was called
                 *                                      or where the img tag is.
                 */
                $filtered_decoding_attr = apply_filters(
                        'wp_img_tag_add_decoding_attr',
                        isset( $optimization_attrs['decoding'] ) ? $optimization_attrs['decoding'] : false,
                        $image,
                        $context
                );

                // Validate the values after filtering.
                if ( isset( $optimization_attrs['decoding'] ) && ! $filtered_decoding_attr ) {
                        // Unset `decoding` attribute if `$filtered_decoding_attr` is set to `false`.
                        unset( $optimization_attrs['decoding'] );
                } elseif ( in_array( $filtered_decoding_attr, array( 'async', 'sync', 'auto' ), true ) ) {
                        $optimization_attrs['decoding'] = $filtered_decoding_attr;
                }

                if ( ! empty( $optimization_attrs['decoding'] ) ) {
                        $image = str_replace( '<img', '<img decoding="' . esc_attr( $optimization_attrs['decoding'] ) . '"', $image );
                }
        }

        // Images should have dimension attributes for the 'loading' and 'fetchpriority' attributes to be added.
        if ( ! str_contains( $image, ' width="' ) || ! str_contains( $image, ' height="' ) ) {
                return $image;
        }

        // Retained for backward compatibility.
        $loading_attrs_enabled = wp_lazy_loading_enabled( 'img', $context );

        if ( empty( $loading_val ) && $loading_attrs_enabled ) {
                /**
                 * Filters the `loading` attribute value to add to an image. Default `lazy`.
                 *
                 * Returning `false` or an empty string will not add the attribute.
                 * Returning `true` will add the default value.
                 *
                 * @since 5.5.0
                 *
                 * @param string|bool $value   The `loading` attribute value. Returning a falsey value will result in
                 *                             the attribute being omitted for the image.
                 * @param string      $image   The HTML `img` tag to be filtered.
                 * @param string      $context Additional context about how the function was called or where the img tag is.
                 */
                $filtered_loading_attr = apply_filters(
                        'wp_img_tag_add_loading_attr',
                        isset( $optimization_attrs['loading'] ) ? $optimization_attrs['loading'] : false,
                        $image,
                        $context
                );

                // Validate the values after filtering.
                if ( isset( $optimization_attrs['loading'] ) && ! $filtered_loading_attr ) {
                        // Unset `loading` attributes if `$filtered_loading_attr` is set to `false`.
                        unset( $optimization_attrs['loading'] );
                } elseif ( in_array( $filtered_loading_attr, array( 'lazy', 'eager' ), true ) ) {
                        /*
                         * If the filter changed the loading attribute to "lazy" when a fetchpriority attribute
                         * with value "high" is already present, trigger a warning since those two attribute
                         * values should be mutually exclusive.
                         *
                         * The same warning is present in `wp_get_loading_optimization_attributes()`, and here it
                         * is only intended for the specific scenario where the above filtered caused the problem.
                         */
                        if ( isset( $optimization_attrs['fetchpriority'] ) && 'high' === $optimization_attrs['fetchpriority'] &&
                                ( isset( $optimization_attrs['loading'] ) ? $optimization_attrs['loading'] : false ) !== $filtered_loading_attr &&
                                'lazy' === $filtered_loading_attr
                        ) {
                                _doing_it_wrong(
                                        __FUNCTION__,
                                        __( 'An image should not be lazy-loaded and marked as high priority at the same time.' ),
                                        '6.3.0'
                                );
                        }

                        // The filtered value will still be respected.
                        $optimization_attrs['loading'] = $filtered_loading_attr;
                }

                if ( ! empty( $optimization_attrs['loading'] ) ) {
                        $image = str_replace( '<img', '<img loading="' . esc_attr( $optimization_attrs['loading'] ) . '"', $image );
                }
        }

        if ( empty( $fetchpriority_val ) && ! empty( $optimization_attrs['fetchpriority'] ) ) {
                $image = str_replace( '<img', '<img fetchpriority="' . esc_attr( $optimization_attrs['fetchpriority'] ) . '"', $image );
        }

        return $image;
}

/**
 * Adds `width` and `height` attributes to an `img` HTML tag.
 *
 * @since 5.5.0
 *
 * @param string $image         The HTML `img` tag where the attribute should be added.
 * @param string $context       Additional context to pass to the filters.
 * @param int    $attachment_id Image attachment ID.
 * @return string Converted 'img' element with 'width' and 'height' attributes added.
 */
function wp_img_tag_add_width_and_height_attr( $image, $context, $attachment_id ) {
        $image_src         = preg_match( '/src="([^"]+)"/', $image, $match_src ) ? $match_src[1] : '';
        list( $image_src ) = explode( '?', $image_src );

        // Return early if we couldn't get the image source.
        if ( ! $image_src ) {
                return $image;
        }

        /**
         * Filters whether to add the missing `width` and `height` HTML attributes to the img tag. Default `true`.
         *
         * Returning anything else than `true` will not add the attributes.
         *
         * @since 5.5.0
         *
         * @param bool   $value         The filtered value, defaults to `true`.
         * @param string $image         The HTML `img` tag where the attribute should be added.
         * @param string $context       Additional context about how the function was called or where the img tag is.
         * @param int    $attachment_id The image attachment ID.
         */
        $add = apply_filters( 'wp_img_tag_add_width_and_height_attr', true, $image, $context, $attachment_id );

        if ( true === $add ) {
                $image_meta = wp_get_attachment_metadata( $attachment_id );
                $size_array = wp_image_src_get_dimensions( $image_src, $image_meta, $attachment_id );

                if ( $size_array && $size_array[0] && $size_array[1] ) {
                        // If the width is enforced through style (e.g. in an inline image), calculate the dimension attributes.
                        $style_width = preg_match( '/style="width:\s*(\d+)px;"/', $image, $match_width ) ? (int) $match_width[1] : 0;
                        if ( $style_width ) {
                                $size_array[1] = (int) round( $size_array[1] * $style_width / $size_array[0] );
                                $size_array[0] = $style_width;
                        }

                        $hw = trim( image_hwstring( $size_array[0], $size_array[1] ) );
                        return str_replace( '<img', "<img {$hw}", $image );
                }
        }

        return $image;
}

/**
 * Adds `srcset` and `sizes` attributes to an existing `img` HTML tag.
 *
 * @since 5.5.0
 *
 * @param string $image         The HTML `img` tag where the attribute should be added.
 * @param string $context       Additional context to pass to the filters.
 * @param int    $attachment_id Image attachment ID.
 * @return string Converted 'img' element with 'loading' attribute added.
 */
function wp_img_tag_add_srcset_and_sizes_attr( $image, $context, $attachment_id ) {
        /**
         * Filters whether to add the `srcset` and `sizes` HTML attributes to the img tag. Default `true`.
         *
         * Returning anything else than `true` will not add the attributes.
         *
         * @since 5.5.0
         *
         * @param bool   $value         The filtered value, defaults to `true`.
         * @param string $image         The HTML `img` tag where the attribute should be added.
         * @param string $context       Additional context about how the function was called or where the img tag is.
         * @param int    $attachment_id The image attachment ID.
         */
        $add = apply_filters( 'wp_img_tag_add_srcset_and_sizes_attr', true, $image, $context, $attachment_id );

        if ( true === $add ) {
                $image_meta = wp_get_attachment_metadata( $attachment_id );
                return wp_image_add_srcset_and_sizes( $image, $image_meta, $attachment_id );
        }

        return $image;
}

/**
 * Adds `loading` attribute to an `iframe` HTML tag.
 *
 * @since 5.7.0
 *
 * @param string $iframe  The HTML `iframe` tag where the attribute should be added.
 * @param string $context Additional context to pass to the filters.
 * @return string Converted `iframe` tag with `loading` attribute added.
 */
function wp_iframe_tag_add_loading_attr( $iframe, $context ) {
        /*
         * Get loading attribute value to use. This must occur before the conditional check below so that even iframes that
         * are ineligible for being lazy-loaded are considered.
         */
        $optimization_attrs = wp_get_loading_optimization_attributes(
                'iframe',
                array(
                        /*
                         * The concrete values for width and height are not important here for now
                         * since fetchpriority is not yet supported for iframes.
                         * TODO: Use WP_HTML_Tag_Processor to extract actual values once support is
                         * added.
                         */
                        'width'   => str_contains( $iframe, ' width="' ) ? 100 : null,
                        'height'  => str_contains( $iframe, ' height="' ) ? 100 : null,
                        // This function is never called when a 'loading' attribute is already present.
                        'loading' => null,
                ),
                $context
        );

        // Iframes should have source and dimension attributes for the `loading` attribute to be added.
        if ( ! str_contains( $iframe, ' src="' ) || ! str_contains( $iframe, ' width="' ) || ! str_contains( $iframe, ' height="' ) ) {
                return $iframe;
        }

        $value = isset( $optimization_attrs['loading'] ) ? $optimization_attrs['loading'] : false;

        /**
         * Filters the `loading` attribute value to add to an iframe. Default `lazy`.
         *
         * Returning `false` or an empty string will not add the attribute.
         * Returning `true` will add the default value.
         *
         * @since 5.7.0
         *
         * @param string|bool $value   The `loading` attribute value. Returning a falsey value will result in
         *                             the attribute being omitted for the iframe.
         * @param string      $iframe  The HTML `iframe` tag to be filtered.
         * @param string      $context Additional context about how the function was called or where the iframe tag is.
         */
        $value = apply_filters( 'wp_iframe_tag_add_loading_attr', $value, $iframe, $context );

        if ( $value ) {
                if ( ! in_array( $value, array( 'lazy', 'eager' ), true ) ) {
                        $value = 'lazy';
                }

                return str_replace( '<iframe', '<iframe loading="' . esc_attr( $value ) . '"', $iframe );
        }

        return $iframe;
}

/**
 * Adds a 'wp-post-image' class to post thumbnails. Internal use only.
 *
 * Uses the {@see 'begin_fetch_post_thumbnail_html'} and {@see 'end_fetch_post_thumbnail_html'}
 * action hooks to dynamically add/remove itself so as to only filter post thumbnails.
 *
 * @ignore
 * @since 2.9.0
 *
 * @param string[] $attr Array of thumbnail attributes including src, class, alt, title, keyed by attribute name.
 * @return string[] Modified array of attributes including the new 'wp-post-image' class.
 */
function _wp_post_thumbnail_class_filter( $attr ) {
        $attr['class'] .= ' wp-post-image';
        return $attr;
}

/**
 * Adds '_wp_post_thumbnail_class_filter' callback to the 'wp_get_attachment_image_attributes'
 * filter hook. Internal use only.
 *
 * @ignore
 * @since 2.9.0
 *
 * @param string[] $attr Array of thumbnail attributes including src, class, alt, title, keyed by attribute name.
 */
function _wp_post_thumbnail_class_filter_add( $attr ) {
        add_filter( 'wp_get_attachment_image_attributes', '_wp_post_thumbnail_class_filter' );
}

/**
 * Removes the '_wp_post_thumbnail_class_filter' callback from the 'wp_get_attachment_image_attributes'
 * filter hook. Internal use only.
 *
 * @ignore
 * @since 2.9.0
 *
 * @param string[] $attr Array of thumbnail attributes including src, class, alt, title, keyed by attribute name.
 */
function _wp_post_thumbnail_class_filter_remove( $attr ) {
        remove_filter( 'wp_get_attachment_image_attributes', '_wp_post_thumbnail_class_filter' );
}

/**
 * Overrides the context used in {@see wp_get_attachment_image()}. Internal use only.
 *
 * Uses the {@see 'begin_fetch_post_thumbnail_html'} and {@see 'end_fetch_post_thumbnail_html'}
 * action hooks to dynamically add/remove itself so as to only filter post thumbnails.
 *
 * @ignore
 * @since 6.3.0
 * @access private
 *
 * @param string $context The context for rendering an attachment image.
 * @return string Modified context set to 'the_post_thumbnail'.
 */
function _wp_post_thumbnail_context_filter( $context ) {
        return 'the_post_thumbnail';
}

/**
 * Adds the '_wp_post_thumbnail_context_filter' callback to the 'wp_get_attachment_image_context'
 * filter hook. Internal use only.
 *
 * @ignore
 * @since 6.3.0
 * @access private
 */
function _wp_post_thumbnail_context_filter_add() {
        add_filter( 'wp_get_attachment_image_context', '_wp_post_thumbnail_context_filter' );
}

/**
 * Removes the '_wp_post_thumbnail_context_filter' callback from the 'wp_get_attachment_image_context'
 * filter hook. Internal use only.
 *
 * @ignore
 * @since 6.3.0
 * @access private
 */
function _wp_post_thumbnail_context_filter_remove() {
        remove_filter( 'wp_get_attachment_image_context', '_wp_post_thumbnail_context_filter' );
}

add_shortcode( 'wp_caption', 'img_caption_shortcode' );
add_shortcode( 'caption', 'img_caption_shortcode' );

/**
 * Builds the Caption shortcode output.
 *
 * Allows a plugin to replace the content that would otherwise be returned. The
 * filter is {@see 'img_caption_shortcode'} and passes an empty string, the attr
 * parameter and the content parameter values.
 *
 * The supported attributes for the shortcode are 'id', 'caption_id', 'align',
 * 'width', 'caption', and 'class'.
 *
 * @since 2.6.0
 * @since 3.9.0 The `class` attribute was added.
 * @since 5.1.0 The `caption_id` attribute was added.
 * @since 5.9.0 The `$content` parameter default value changed from `null` to `''`.
 *
 * @param array  $attr {
 *     Attributes of the caption shortcode.
 *
 *     @type string $id         ID of the image and caption container element, i.e. `<figure>` or `<div>`.
 *     @type string $caption_id ID of the caption element, i.e. `<figcaption>` or `<p>`.
 *     @type string $align      Class name that aligns the caption. Default 'alignnone'. Accepts 'alignleft',
 *                              'aligncenter', alignright', 'alignnone'.
 *     @type int    $width      The width of the caption, in pixels.
 *     @type string $caption    The caption text.
 *     @type string $class      Additional class name(s) added to the caption container.
 * }
 * @param string $content Optional. Shortcode content. Default empty string.
 * @return string HTML content to display the caption.
 */
function img_caption_shortcode( $attr, $content = '' ) {
        // New-style shortcode with the caption inside the shortcode with the link and image tags.
        if ( ! isset( $attr['caption'] ) ) {
                if ( preg_match( '#((?:<a [^>]+>\s*)?<img [^>]+>(?:\s*</a>)?)(.*)#is', $content, $matches ) ) {
                        $content         = $matches[1];
                        $attr['caption'] = trim( $matches[2] );
                }
        } elseif ( str_contains( $attr['caption'], '<' ) ) {
                $attr['caption'] = wp_kses( $attr['caption'], 'post' );
        }

        /**
         * Filters the default caption shortcode output.
         *
         * If the filtered output isn't empty, it will be used instead of generating
         * the default caption template.
         *
         * @since 2.6.0
         *
         * @see img_caption_shortcode()
         *
         * @param string $output  The caption output. Default empty.
         * @param array  $attr    Attributes of the caption shortcode.
         * @param string $content The image element, possibly wrapped in a hyperlink.
         */
        $output = apply_filters( 'img_caption_shortcode', '', $attr, $content );

        if ( ! empty( $output ) ) {
                return $output;
        }

        $atts = shortcode_atts(
                array(
                        'id'         => '',
                        'caption_id' => '',
                        'align'      => 'alignnone',
                        'width'      => '',
                        'caption'    => '',
                        'class'      => '',
                ),
                $attr,
                'caption'
        );

        $atts['width'] = (int) $atts['width'];

        if ( $atts['width'] < 1 || empty( $atts['caption'] ) ) {
                return $content;
        }

        $id          = '';
        $caption_id  = '';
        $describedby = '';

        if ( $atts['id'] ) {
                $atts['id'] = sanitize_html_class( $atts['id'] );
                $id         = 'id="' . esc_attr( $atts['id'] ) . '" ';
        }

        if ( $atts['caption_id'] ) {
                $atts['caption_id'] = sanitize_html_class( $atts['caption_id'] );
        } elseif ( $atts['id'] ) {
                $atts['caption_id'] = 'caption-' . str_replace( '_', '-', $atts['id'] );
        }

        if ( $atts['caption_id'] ) {
                $caption_id  = 'id="' . esc_attr( $atts['caption_id'] ) . '" ';
                $describedby = 'aria-describedby="' . esc_attr( $atts['caption_id'] ) . '" ';
        }

        $class = trim( 'wp-caption ' . $atts['align'] . ' ' . $atts['class'] );

        $html5 = current_theme_supports( 'html5', 'caption' );
        // HTML5 captions never added the extra 10px to the image width.
        $width = $html5 ? $atts['width'] : ( 10 + $atts['width'] );

        /**
         * Filters the width of an image's caption.
         *
         * By default, the caption is 10 pixels greater than the width of the image,
         * to prevent post content from running up against a floated image.
         *
         * @since 3.7.0
         *
         * @see img_caption_shortcode()
         *
         * @param int    $width    Width of the caption in pixels. To remove this inline style,
         *                         return zero.
         * @param array  $atts     Attributes of the caption shortcode.
         * @param string $content  The image element, possibly wrapped in a hyperlink.
         */
        $caption_width = apply_filters( 'img_caption_shortcode_width', $width, $atts, $content );

        $style = '';

        if ( $caption_width ) {
                $style = 'style="width: ' . (int) $caption_width . 'px" ';
        }

        if ( $html5 ) {
                $html = sprintf(
                        '<figure %s%s%sclass="%s">%s%s</figure>',
                        $id,
                        $describedby,
                        $style,
                        esc_attr( $class ),
                        do_shortcode( $content ),
                        sprintf(
                                '<figcaption %sclass="wp-caption-text">%s</figcaption>',
                                $caption_id,
                                $atts['caption']
                        )
                );
        } else {
                $html = sprintf(
                        '<div %s%sclass="%s">%s%s</div>',
                        $id,
                        $style,
                        esc_attr( $class ),
                        str_replace( '<img ', '<img ' . $describedby, do_shortcode( $content ) ),
                        sprintf(
                                '<p %sclass="wp-caption-text">%s</p>',
                                $caption_id,
                                $atts['caption']
                        )
                );
        }

        return $html;
}

add_shortcode( 'gallery', 'gallery_shortcode' );

/**
 * Builds the Gallery shortcode output.
 *
 * This implements the functionality of the Gallery Shortcode for displaying
 * WordPress images on a post.
 *
 * @since 2.5.0
 * @since 2.8.0 Added the `$attr` parameter to set the shortcode output. New attributes included
 *              such as `size`, `itemtag`, `icontag`, `captiontag`, and columns. Changed markup from
 *              `div` tags to `dl`, `dt` and `dd` tags. Support more than one gallery on the
 *              same page.
 * @since 2.9.0 Added support for `include` and `exclude` to shortcode.
 * @since 3.5.0 Use get_post() instead of global `$post`. Handle mapping of `ids` to `include`
 *              and `orderby`.
 * @since 3.6.0 Added validation for tags used in gallery shortcode. Add orientation information to items.
 * @since 3.7.0 Introduced the `link` attribute.
 * @since 3.9.0 `html5` gallery support, accepting 'itemtag', 'icontag', and 'captiontag' attributes.
 * @since 4.0.0 Removed use of `extract()`.
 * @since 4.1.0 Added attribute to `wp_get_attachment_link()` to output `aria-describedby`.
 * @since 4.2.0 Passed the shortcode instance ID to `post_gallery` and `post_playlist` filters.
 * @since 4.6.0 Standardized filter docs to match documentation standards for PHP.
 * @since 5.1.0 Code cleanup for WPCS 1.0.0 coding standards.
 * @since 5.3.0 Saved progress of intermediate image creation after upload.
 * @since 5.5.0 Ensured that galleries can be output as a list of links in feeds.
 * @since 5.6.0 Replaced order-style PHP type conversion functions with typecasts. Fix logic for
 *              an array of image dimensions.
 *
 * @param array $attr {
 *     Attributes of the gallery shortcode.
 *
 *     @type string       $order      Order of the images in the gallery. Default 'ASC'. Accepts 'ASC', 'DESC'.
 *     @type string       $orderby    The field to use when ordering the images. Default 'menu_order ID'.
 *                                    Accepts any valid SQL ORDERBY statement.
 *     @type int          $id         Post ID.
 *     @type string       $itemtag    HTML tag to use for each image in the gallery.
 *                                    Default 'dl', or 'figure' when the theme registers HTML5 gallery support.
 *     @type string       $icontag    HTML tag to use for each image's icon.
 *                                    Default 'dt', or 'div' when the theme registers HTML5 gallery support.
 *     @type string       $captiontag HTML tag to use for each image's caption.
 *                                    Default 'dd', or 'figcaption' when the theme registers HTML5 gallery support.
 *     @type int          $columns    Number of columns of images to display. Default 3.
 *     @type string|int[] $size       Size of the images to display. Accepts any registered image size name, or an array
 *                                    of width and height values in pixels (in that order). Default 'thumbnail'.
 *     @type string       $ids        A comma-separated list of IDs of attachments to display. Default empty.
 *     @type string       $include    A comma-separated list of IDs of attachments to include. Default empty.
 *     @type string       $exclude    A comma-separated list of IDs of attachments to exclude. Default empty.
 *     @type string       $link       What to link each image to. Default empty (links to the attachment page).
 *                                    Accepts 'file', 'none'.
 * }
 * @return string HTML content to display gallery.
 */
function gallery_shortcode( $attr ) {
        $post = get_post();

        static $instance = 0;
        ++$instance;

        if ( ! empty( $attr['ids'] ) ) {
                // 'ids' is explicitly ordered, unless you specify otherwise.
                if ( empty( $attr['orderby'] ) ) {
                        $attr['orderby'] = 'post__in';
                }
                $attr['include'] = $attr['ids'];
        }

        /**
         * Filters the default gallery shortcode output.
         *
         * If the filtered output isn't empty, it will be used instead of generating
         * the default gallery template.
         *
         * @since 2.5.0
         * @since 4.2.0 The `$instance` parameter was added.
         *
         * @see gallery_shortcode()
         *
         * @param string $output   The gallery output. Default empty.
         * @param array  $attr     Attributes of the gallery shortcode.
         * @param int    $instance Unique numeric ID of this gallery shortcode instance.
         */
        $output = apply_filters( 'post_gallery', '', $attr, $instance );

        if ( ! empty( $output ) ) {
                return $output;
        }

        $html5 = current_theme_supports( 'html5', 'gallery' );
        $atts  = shortcode_atts(
                array(
                        'order'      => 'ASC',
                        'orderby'    => 'menu_order ID',
                        'id'         => $post ? $post->ID : 0,
                        'itemtag'    => $html5 ? 'figure' : 'dl',
                        'icontag'    => $html5 ? 'div' : 'dt',
                        'captiontag' => $html5 ? 'figcaption' : 'dd',
                        'columns'    => 3,
                        'size'       => 'thumbnail',
                        'include'    => '',
                        'exclude'    => '',
                        'link'       => '',
                ),
                $attr,
                'gallery'
        );

        $id = (int) $atts['id'];

        if ( ! empty( $atts['include'] ) ) {
                $_attachments = get_posts(
                        array(
                                'include'        => $atts['include'],
                                'post_status'    => 'inherit',
                                'post_type'      => 'attachment',
                                'post_mime_type' => 'image',
                                'order'          => $atts['order'],
                                'orderby'        => $atts['orderby'],
                        )
                );

                $attachments = array();
                foreach ( $_attachments as $key => $val ) {
                        $attachments[ $val->ID ] = $_attachments[ $key ];
                }
        } elseif ( ! empty( $atts['exclude'] ) ) {
                $post_parent_id = $id;
                $attachments    = get_children(
                        array(
                                'post_parent'    => $id,
                                'exclude'        => $atts['exclude'],
                                'post_status'    => 'inherit',
                                'post_type'      => 'attachment',
                                'post_mime_type' => 'image',
                                'order'          => $atts['order'],
                                'orderby'        => $atts['orderby'],
                        )
                );
        } else {
                $post_parent_id = $id;
                $attachments    = get_children(
                        array(
                                'post_parent'    => $id,
                                'post_status'    => 'inherit',
                                'post_type'      => 'attachment',
                                'post_mime_type' => 'image',
                                'order'          => $atts['order'],
                                'orderby'        => $atts['orderby'],
                        )
                );
        }

        if ( ! empty( $post_parent_id ) ) {
                $post_parent = get_post( $post_parent_id );

                // Terminate the shortcode execution if the user cannot read the post or it is password-protected.
                if ( ! is_post_publicly_viewable( $post_parent->ID ) && ! current_user_can( 'read_post', $post_parent->ID )
                        || post_password_required( $post_parent )
                ) {
                        return '';
                }
        }

        if ( empty( $attachments ) ) {
                return '';
        }

        if ( is_feed() ) {
                $output = "\n";
                foreach ( $attachments as $att_id => $attachment ) {
                        if ( ! empty( $atts['link'] ) ) {
                                if ( 'none' === $atts['link'] ) {
                                        $output .= wp_get_attachment_image( $att_id, $atts['size'], false, $attr );
                                } else {
                                        $output .= wp_get_attachment_link( $att_id, $atts['size'], false );
                                }
                        } else {
                                $output .= wp_get_attachment_link( $att_id, $atts['size'], true );
                        }
                        $output .= "\n";
                }
                return $output;
        }

        $itemtag    = tag_escape( $atts['itemtag'] );
        $captiontag = tag_escape( $atts['captiontag'] );
        $icontag    = tag_escape( $atts['icontag'] );
        $valid_tags = wp_kses_allowed_html( 'post' );
        if ( ! isset( $valid_tags[ $itemtag ] ) ) {
                $itemtag = 'dl';
        }
        if ( ! isset( $valid_tags[ $captiontag ] ) ) {
                $captiontag = 'dd';
        }
        if ( ! isset( $valid_tags[ $icontag ] ) ) {
                $icontag = 'dt';
        }

        $columns   = (int) $atts['columns'];
        $itemwidth = $columns > 0 ? floor( 100 / $columns ) : 100;
        $float     = is_rtl() ? 'right' : 'left';

        $selector = "gallery-{$instance}";

        $gallery_style = '';

        /**
         * Filters whether to print default gallery styles.
         *
         * @since 3.1.0
         *
         * @param bool $print Whether to print default gallery styles.
         *                    Defaults to false if the theme supports HTML5 galleries.
         *                    Otherwise, defaults to true.
         */
        if ( apply_filters( 'use_default_gallery_style', ! $html5 ) ) {
                $type_attr = current_theme_supports( 'html5', 'style' ) ? '' : ' type="text/css"';

                $gallery_style = "
                <style{$type_attr}>
                        #{$selector} {
                                margin: auto;
                        }
                        #{$selector} .gallery-item {
                                float: {$float};
                                margin-top: 10px;
                                text-align: center;
                                width: {$itemwidth}%;
                        }
                        #{$selector} img {
                                border: 2px solid #cfcfcf;
                        }
                        #{$selector} .gallery-caption {
                                margin-left: 0;
                        }
                        /* see gallery_shortcode() in wp-includes/media.php */
                </style>\n\t\t";
        }

        $size_class  = sanitize_html_class( is_array( $atts['size'] ) ? implode( 'x', $atts['size'] ) : $atts['size'] );
        $gallery_div = "<div id='$selector' class='gallery galleryid-{$id} gallery-columns-{$columns} gallery-size-{$size_class}'>";

        /**
         * Filters the default gallery shortcode CSS styles.
         *
         * @since 2.5.0
         *
         * @param string $gallery_style Default CSS styles and opening HTML div container
         *                              for the gallery shortcode output.
         */
        $output = apply_filters( 'gallery_style', $gallery_style . $gallery_div );

        $i = 0;

        foreach ( $attachments as $id => $attachment ) {

                $attr = ( trim( $attachment->post_excerpt ) ) ? array( 'aria-describedby' => "$selector-$id" ) : '';

                if ( ! empty( $atts['link'] ) && 'file' === $atts['link'] ) {
                        $image_output = wp_get_attachment_link( $id, $atts['size'], false, false, false, $attr );
                } elseif ( ! empty( $atts['link'] ) && 'none' === $atts['link'] ) {
                        $image_output = wp_get_attachment_image( $id, $atts['size'], false, $attr );
                } else {
                        $image_output = wp_get_attachment_link( $id, $atts['size'], true, false, false, $attr );
                }

                $image_meta = wp_get_attachment_metadata( $id );

                $orientation = '';

                if ( isset( $image_meta['height'], $image_meta['width'] ) ) {
                        $orientation = ( $image_meta['height'] > $image_meta['width'] ) ? 'portrait' : 'landscape';
                }

                $output .= "<{$itemtag} class='gallery-item'>";
                $output .= "
                        <{$icontag} class='gallery-icon {$orientation}'>
                                $image_output
                        </{$icontag}>";

                if ( $captiontag && trim( $attachment->post_excerpt ) ) {
                        $output .= "
                                <{$captiontag} class='wp-caption-text gallery-caption' id='$selector-$id'>
                                " . wptexturize( $attachment->post_excerpt ) . "
                                </{$captiontag}>";
                }

                $output .= "</{$itemtag}>";

                if ( ! $html5 && $columns > 0 && 0 === ++$i % $columns ) {
                        $output .= '<br style="clear: both" />';
                }
        }

        if ( ! $html5 && $columns > 0 && 0 !== $i % $columns ) {
                $output .= "
                        <br style='clear: both' />";
        }

        $output .= "
                </div>\n";

        return $output;
}

/**
 * Outputs the templates used by playlists.
 *
 * @since 3.9.0
 */
function wp_underscore_playlist_templates() {
        ?>
<script type="text/html" id="tmpl-wp-playlist-current-item">
        <# if ( data.thumb && data.thumb.src ) { #>
                <img src="{{ data.thumb.src }}" alt="" />
        <# } #>
        <div class="wp-playlist-caption">
                <span class="wp-playlist-item-meta wp-playlist-item-title">
                        <# if ( data.meta.album || data.meta.artist ) { #>
                                <?php
                                /* translators: %s: Playlist item title. */
                                printf( _x( '&#8220;%s&#8221;', 'playlist item title' ), '{{ data.title }}' );
                                ?>
                        <# } else { #>
                                {{ data.title }}
                        <# } #>
                </span>
                <# if ( data.meta.album ) { #><span class="wp-playlist-item-meta wp-playlist-item-album">{{ data.meta.album }}</span><# } #>
                <# if ( data.meta.artist ) { #><span class="wp-playlist-item-meta wp-playlist-item-artist">{{ data.meta.artist }}</span><# } #>
        </div>
</script>
<script type="text/html" id="tmpl-wp-playlist-item">
        <div class="wp-playlist-item">
                <a class="wp-playlist-caption" href="{{ data.src }}">
                        {{ data.index ? ( data.index + '. ' ) : '' }}
                        <# if ( data.caption ) { #>
                                {{ data.caption }}
                        <# } else { #>
                                <# if ( data.artists && data.meta.artist ) { #>
                                        <span class="wp-playlist-item-title">
                                                <?php
                                                /* translators: %s: Playlist item title. */
                                                printf( _x( '&#8220;%s&#8221;', 'playlist item title' ), '{{{ data.title }}}' );
                                                ?>
                                        </span>
                                        <span class="wp-playlist-item-artist"> &mdash; {{ data.meta.artist }}</span>
                                <# } else { #>
                                        <span class="wp-playlist-item-title">{{{ data.title }}}</span>
                                <# } #>
                        <# } #>
                </a>
                <# if ( data.meta.length_formatted ) { #>
                <div class="wp-playlist-item-length">{{ data.meta.length_formatted }}</div>
                <# } #>
        </div>
</script>
        <?php
}

/**
 * Outputs and enqueues default scripts and styles for playlists.
 *
 * @since 3.9.0
 *
 * @param string $type Type of playlist. Accepts 'audio' or 'video'.
 */
function wp_playlist_scripts( $type ) {
        wp_enqueue_style( 'wp-mediaelement' );
        wp_enqueue_script( 'wp-playlist' );
        ?>
<!--[if lt IE 9]><script>document.createElement('<?php echo esc_js( $type ); ?>');</script><![endif]-->
        <?php
        add_action( 'wp_footer', 'wp_underscore_playlist_templates', 0 );
        add_action( 'admin_footer', 'wp_underscore_playlist_templates', 0 );
}

/**
 * Builds the Playlist shortcode output.
 *
 * This implements the functionality of the playlist shortcode for displaying
 * a collection of WordPress audio or video files in a post.
 *
 * @since 3.9.0
 *
 * @global int $content_width
 *
 * @param array $attr {
 *     Array of default playlist attributes.
 *
 *     @type string  $type         Type of playlist to display. Accepts 'audio' or 'video'. Default 'audio'.
 *     @type string  $order        Designates ascending or descending order of items in the playlist.
 *                                 Accepts 'ASC', 'DESC'. Default 'ASC'.
 *     @type string  $orderby      Any column, or columns, to sort the playlist. If $ids are
 *                                 passed, this defaults to the order of the $ids array ('post__in').
 *                                 Otherwise default is 'menu_order ID'.
 *     @type int     $id           If an explicit $ids array is not present, this parameter
 *                                 will determine which attachments are used for the playlist.
 *                                 Default is the current post ID.
 *     @type array   $ids          Create a playlist out of these explicit attachment IDs. If empty,
 *                                 a playlist will be created from all $type attachments of $id.
 *                                 Default empty.
 *     @type array   $exclude      List of specific attachment IDs to exclude from the playlist. Default empty.
 *     @type string  $style        Playlist style to use. Accepts 'light' or 'dark'. Default 'light'.
 *     @type bool    $tracklist    Whether to show or hide the playlist. Default true.
 *     @type bool    $tracknumbers Whether to show or hide the numbers next to entries in the playlist. Default true.
 *     @type bool    $images       Show or hide the video or audio thumbnail (Featured Image/post
 *                                 thumbnail). Default true.
 *     @type bool    $artists      Whether to show or hide artist name in the playlist. Default true.
 * }
 *
 * @return string Playlist output. Empty string if the passed type is unsupported.
 */
function wp_playlist_shortcode( $attr ) {
        global $content_width;
        $post = get_post();

        static $instance = 0;
        ++$instance;

        if ( ! empty( $attr['ids'] ) ) {
                // 'ids' is explicitly ordered, unless you specify otherwise.
                if ( empty( $attr['orderby'] ) ) {
                        $attr['orderby'] = 'post__in';
                }
                $attr['include'] = $attr['ids'];
        }

        /**
         * Filters the playlist output.
         *
         * Returning a non-empty value from the filter will short-circuit generation
         * of the default playlist output, returning the passed value instead.
         *
         * @since 3.9.0
         * @since 4.2.0 The `$instance` parameter was added.
         *
         * @param string $output   Playlist output. Default empty.
         * @param array  $attr     An array of shortcode attributes.
         * @param int    $instance Unique numeric ID of this playlist shortcode instance.
         */
        $output = apply_filters( 'post_playlist', '', $attr, $instance );

        if ( ! empty( $output ) ) {
                return $output;
        }

        $atts = shortcode_atts(
                array(
                        'type'         => 'audio',
                        'order'        => 'ASC',
                        'orderby'      => 'menu_order ID',
                        'id'           => $post ? $post->ID : 0,
                        'include'      => '',
                        'exclude'      => '',
                        'style'        => 'light',
                        'tracklist'    => true,
                        'tracknumbers' => true,
                        'images'       => true,
                        'artists'      => true,
                ),
                $attr,
                'playlist'
        );

        $id = (int) $atts['id'];

        if ( 'audio' !== $atts['type'] ) {
                $atts['type'] = 'video';
        }

        $args = array(
                'post_status'    => 'inherit',
                'post_type'      => 'attachment',
                'post_mime_type' => $atts['type'],
                'order'          => $atts['order'],
                'orderby'        => $atts['orderby'],
        );

        if ( ! empty( $atts['include'] ) ) {
                $args['include'] = $atts['include'];
                $_attachments    = get_posts( $args );

                $attachments = array();
                foreach ( $_attachments as $key => $val ) {
                        $attachments[ $val->ID ] = $_attachments[ $key ];
                }
        } elseif ( ! empty( $atts['exclude'] ) ) {
                $args['post_parent'] = $id;
                $args['exclude']     = $atts['exclude'];
                $attachments         = get_children( $args );
        } else {
                $args['post_parent'] = $id;
                $attachments         = get_children( $args );
        }

        if ( ! empty( $args['post_parent'] ) ) {
                $post_parent = get_post( $id );

                // Terminate the shortcode execution if the user cannot read the post or it is password-protected.
                if ( ! current_user_can( 'read_post', $post_parent->ID ) || post_password_required( $post_parent ) ) {
                        return '';
                }
        }

        if ( empty( $attachments ) ) {
                return '';
        }

        if ( is_feed() ) {
                $output = "\n";
                foreach ( $attachments as $att_id => $attachment ) {
                        $output .= wp_get_attachment_link( $att_id ) . "\n";
                }
                return $output;
        }

        $outer = 22; // Default padding and border of wrapper.

        $default_width  = 640;
        $default_height = 360;

        $theme_width  = empty( $content_width ) ? $default_width : ( $content_width - $outer );
        $theme_height = empty( $content_width ) ? $default_height : round( ( $default_height * $theme_width ) / $default_width );

        $data = array(
                'type'         => $atts['type'],
                // Don't pass strings to JSON, will be truthy in JS.
                'tracklist'    => wp_validate_boolean( $atts['tracklist'] ),
                'tracknumbers' => wp_validate_boolean( $atts['tracknumbers'] ),
                'images'       => wp_validate_boolean( $atts['images'] ),
                'artists'      => wp_validate_boolean( $atts['artists'] ),
        );

        $tracks = array();
        foreach ( $attachments as $attachment ) {
                $url   = wp_get_attachment_url( $attachment->ID );
                $ftype = wp_check_filetype( $url, wp_get_mime_types() );
                $track = array(
                        'src'         => $url,
                        'type'        => $ftype['type'],
                        'title'       => $attachment->post_title,
                        'caption'     => $attachment->post_excerpt,
                        'description' => $attachment->post_content,
                );

                $track['meta'] = array();
                $meta          = wp_get_attachment_metadata( $attachment->ID );
                if ( ! empty( $meta ) ) {

                        foreach ( wp_get_attachment_id3_keys( $attachment ) as $key => $label ) {
                                if ( ! empty( $meta[ $key ] ) ) {
                                        $track['meta'][ $key ] = $meta[ $key ];
                                }
                        }

                        if ( 'video' === $atts['type'] ) {
                                if ( ! empty( $meta['width'] ) && ! empty( $meta['height'] ) ) {
                                        $width        = $meta['width'];
                                        $height       = $meta['height'];
                                        $theme_height = round( ( $height * $theme_width ) / $width );
                                } else {
                                        $width  = $default_width;
                                        $height = $default_height;
                                }

                                $track['dimensions'] = array(
                                        'original' => compact( 'width', 'height' ),
                                        'resized'  => array(
                                                'width'  => $theme_width,
                                                'height' => $theme_height,
                                        ),
                                );
                        }
                }

                if ( $atts['images'] ) {
                        $thumb_id = get_post_thumbnail_id( $attachment->ID );
                        if ( ! empty( $thumb_id ) ) {
                                list( $src, $width, $height ) = wp_get_attachment_image_src( $thumb_id, 'full' );
                                $track['image']               = compact( 'src', 'width', 'height' );
                                list( $src, $width, $height ) = wp_get_attachment_image_src( $thumb_id, 'thumbnail' );
                                $track['thumb']               = compact( 'src', 'width', 'height' );
                        } else {
                                $src            = wp_mime_type_icon( $attachment->ID, '.svg' );
                                $width          = 48;
                                $height         = 64;
                                $track['image'] = compact( 'src', 'width', 'height' );
                                $track['thumb'] = compact( 'src', 'width', 'height' );
                        }
                }

                $tracks[] = $track;
        }
        $data['tracks'] = $tracks;

        $safe_type  = esc_attr( $atts['type'] );
        $safe_style = esc_attr( $atts['style'] );

        ob_start();

        if ( 1 === $instance ) {
                /**
                 * Prints and enqueues playlist scripts, styles, and JavaScript templates.
                 *
                 * @since 3.9.0
                 *
                 * @param string $type  Type of playlist. Possible values are 'audio' or 'video'.
                 * @param string $style The 'theme' for the playlist. Core provides 'light' and 'dark'.
                 */
                do_action( 'wp_playlist_scripts', $atts['type'], $atts['style'] );
        }
        ?>
<div class="wp-playlist wp-<?php echo $safe_type; ?>-playlist wp-playlist-<?php echo $safe_style; ?>">
        <?php if ( 'audio' === $atts['type'] ) : ?>
                <div class="wp-playlist-current-item"></div>
        <?php endif; ?>
        <<?php echo $safe_type; ?> controls="controls" preload="none" width="<?php echo (int) $theme_width; ?>"
                <?php
                if ( 'video' === $safe_type ) {
                        echo ' height="', (int) $theme_height, '"';
                }
                ?>
        ></<?php echo $safe_type; ?>>
        <div class="wp-playlist-next"></div>
        <div class="wp-playlist-prev"></div>
        <noscript>
        <ol>
                <?php
                foreach ( $attachments as $att_id => $attachment ) {
                        printf( '<li>%s</li>', wp_get_attachment_link( $att_id ) );
                }
                ?>
        </ol>
        </noscript>
        <script type="application/json" class="wp-playlist-script"><?php echo wp_json_encode( $data ); ?></script>
</div>
        <?php
        return ob_get_clean();
}
add_shortcode( 'playlist', 'wp_playlist_shortcode' );

/**
 * Provides a No-JS Flash fallback as a last resort for audio / video.
 *
 * @since 3.6.0
 *
 * @param string $url The media element URL.
 * @return string Fallback HTML.
 */
function wp_mediaelement_fallback( $url ) {
        /**
         * Filters the MediaElement fallback output for no-JS.
         *
         * @since 3.6.0
         *
         * @param string $output Fallback output for no-JS.
         * @param string $url    Media file URL.
         */
        return apply_filters( 'wp_mediaelement_fallback', sprintf( '<a href="%1$s">%1$s</a>', esc_url( $url ) ), $url );
}

/**
 * Returns a filtered list of supported audio formats.
 *
 * @since 3.6.0
 *
 * @return string[] Supported audio formats.
 */
function wp_get_audio_extensions() {
        /**
         * Filters the list of supported audio formats.
         *
         * @since 3.6.0
         *
         * @param string[] $extensions An array of supported audio formats. Defaults are
         *                            'mp3', 'ogg', 'flac', 'm4a', 'wav'.
         */
        return apply_filters( 'wp_audio_extensions', array( 'mp3', 'ogg', 'flac', 'm4a', 'wav' ) );
}

/**
 * Returns useful keys to use to lookup data from an attachment's stored metadata.
 *
 * @since 3.9.0
 *
 * @param WP_Post $attachment The current attachment, provided for context.
 * @param string  $context    Optional. The context. Accepts 'edit', 'display'. Default 'display'.
 * @return string[] Key/value pairs of field keys to labels.
 */
function wp_get_attachment_id3_keys( $attachment, $context = 'display' ) {
        $fields = array(
                'artist' => __( 'Artist' ),
                'album'  => __( 'Album' ),
        );

        if ( 'display' === $context ) {
                $fields['genre']            = __( 'Genre' );
                $fields['year']             = __( 'Year' );
                $fields['length_formatted'] = _x( 'Length', 'video or audio' );
        } elseif ( 'js' === $context ) {
                $fields['bitrate']      = __( 'Bitrate' );
                $fields['bitrate_mode'] = __( 'Bitrate Mode' );
        }

        /**
         * Filters the editable list of keys to look up data from an attachment's metadata.
         *
         * @since 3.9.0
         *
         * @param array   $fields     Key/value pairs of field keys to labels.
         * @param WP_Post $attachment Attachment object.
         * @param string  $context    The context. Accepts 'edit', 'display'. Default 'display'.
         */
        return apply_filters( 'wp_get_attachment_id3_keys', $fields, $attachment, $context );
}
/**
 * Builds the Audio shortcode output.
 *
 * This implements the functionality of the Audio Shortcode for displaying
 * WordPress mp3s in a post.
 *
 * @since 3.6.0
 *
 * @param array  $attr {
 *     Attributes of the audio shortcode.
 *
 *     @type string $src      URL to the source of the audio file. Default empty.
 *     @type string $loop     The 'loop' attribute for the `<audio>` element. Default empty.
 *     @type string $autoplay The 'autoplay' attribute for the `<audio>` element. Default empty.
 *     @type string $preload  The 'preload' attribute for the `<audio>` element. Default 'none'.
 *     @type string $class    The 'class' attribute for the `<audio>` element. Default 'wp-audio-shortcode'.
 *     @type string $style    The 'style' attribute for the `<audio>` element. Default 'width: 100%;'.
 * }
 * @param string $content Shortcode content.
 * @return string|void HTML content to display audio.
 */
function wp_audio_shortcode( $attr, $content = '' ) {
        $post_id = get_post() ? get_the_ID() : 0;

        static $instance = 0;
        ++$instance;

        /**
         * Filters the default audio shortcode output.
         *
         * If the filtered output isn't empty, it will be used instead of generating the default audio template.
         *
         * @since 3.6.0
         *
         * @param string $html     Empty variable to be replaced with shortcode markup.
         * @param array  $attr     Attributes of the shortcode. See {@see wp_audio_shortcode()}.
         * @param string $content  Shortcode content.
         * @param int    $instance Unique numeric ID of this audio shortcode instance.
         */
        $override = apply_filters( 'wp_audio_shortcode_override', '', $attr, $content, $instance );

        if ( '' !== $override ) {
                return $override;
        }

        $audio = null;

        $default_types = wp_get_audio_extensions();
        $defaults_atts = array(
                'src'      => '',
                'loop'     => '',
                'autoplay' => '',
                'preload'  => 'none',
                'class'    => 'wp-audio-shortcode',
                'style'    => 'width: 100%;',
        );
        foreach ( $default_types as $type ) {
                $defaults_atts[ $type ] = '';
        }

        $atts = shortcode_atts( $defaults_atts, $attr, 'audio' );

        $primary = false;
        if ( ! empty( $atts['src'] ) ) {
                $type = wp_check_filetype( $atts['src'], wp_get_mime_types() );

                if ( ! in_array( strtolower( $type['ext'] ), $default_types, true ) ) {
                        return sprintf( '<a class="wp-embedded-audio" href="%s">%s</a>', esc_url( $atts['src'] ), esc_html( $atts['src'] ) );
                }

                $primary = true;
                array_unshift( $default_types, 'src' );
        } else {
                foreach ( $default_types as $ext ) {
                        if ( ! empty( $atts[ $ext ] ) ) {
                                $type = wp_check_filetype( $atts[ $ext ], wp_get_mime_types() );

                                if ( strtolower( $type['ext'] ) === $ext ) {
                                        $primary = true;
                                }
                        }
                }
        }

        if ( ! $primary ) {
                $audios = get_attached_media( 'audio', $post_id );

                if ( empty( $audios ) ) {
                        return;
                }

                $audio       = reset( $audios );
                $atts['src'] = wp_get_attachment_url( $audio->ID );

                if ( empty( $atts['src'] ) ) {
                        return;
                }

                array_unshift( $default_types, 'src' );
        }

        /**
         * Filters the media library used for the audio shortcode.
         *
         * @since 3.6.0
         *
         * @param string $library Media library used for the audio shortcode.
         */
        $library = apply_filters( 'wp_audio_shortcode_library', 'mediaelement' );

        if ( 'mediaelement' === $library && did_action( 'init' ) ) {
                wp_enqueue_style( 'wp-mediaelement' );
                wp_enqueue_script( 'wp-mediaelement' );
        }

        /**
         * Filters the class attribute for the audio shortcode output container.
         *
         * @since 3.6.0
         * @since 4.9.0 The `$atts` parameter was added.
         *
         * @param string $class CSS class or list of space-separated classes.
         * @param array  $atts  Array of audio shortcode attributes.
         */
        $atts['class'] = apply_filters( 'wp_audio_shortcode_class', $atts['class'], $atts );

        $html_atts = array(
                'class'    => $atts['class'],
                'id'       => sprintf( 'audio-%d-%d', $post_id, $instance ),
                'loop'     => wp_validate_boolean( $atts['loop'] ),
                'autoplay' => wp_validate_boolean( $atts['autoplay'] ),
                'preload'  => $atts['preload'],
                'style'    => $atts['style'],
        );

        // These ones should just be omitted altogether if they are blank.
        foreach ( array( 'loop', 'autoplay', 'preload' ) as $a ) {
                if ( empty( $html_atts[ $a ] ) ) {
                        unset( $html_atts[ $a ] );
                }
        }

        $attr_strings = array();

        foreach ( $html_atts as $k => $v ) {
                $attr_strings[] = $k . '="' . esc_attr( $v ) . '"';
        }

        $html = '';

        if ( 'mediaelement' === $library && 1 === $instance ) {
                $html .= "<!--[if lt IE 9]><script>document.createElement('audio');</script><![endif]-->\n";
        }

        $html .= sprintf( '<audio %s controls="controls">', implode( ' ', $attr_strings ) );

        $fileurl = '';
        $source  = '<source type="%s" src="%s" />';

        foreach ( $default_types as $fallback ) {
                if ( ! empty( $atts[ $fallback ] ) ) {
                        if ( empty( $fileurl ) ) {
                                $fileurl = $atts[ $fallback ];
                        }

                        $type  = wp_check_filetype( $atts[ $fallback ], wp_get_mime_types() );
                        $url   = add_query_arg( '_', $instance, $atts[ $fallback ] );
                        $html .= sprintf( $source, $type['type'], esc_url( $url ) );
                }
        }

        if ( 'mediaelement' === $library ) {
                $html .= wp_mediaelement_fallback( $fileurl );
        }

        $html .= '</audio>';

        /**
         * Filters the audio shortcode output.
         *
         * @since 3.6.0
         *
         * @param string $html    Audio shortcode HTML output.
         * @param array  $atts    Array of audio shortcode attributes.
         * @param string $audio   Audio file.
         * @param int    $post_id Post ID.
         * @param string $library Media library used for the audio shortcode.
         */
        return apply_filters( 'wp_audio_shortcode', $html, $atts, $audio, $post_id, $library );
}
add_shortcode( 'audio', 'wp_audio_shortcode' );

/**
 * Returns a filtered list of supported video formats.
 *
 * @since 3.6.0
 *
 * @return string[] List of supported video formats.
 */
function wp_get_video_extensions() {
        /**
         * Filters the list of supported video formats.
         *
         * @since 3.6.0
         *
         * @param string[] $extensions An array of supported video formats. Defaults are
         *                             'mp4', 'm4v', 'webm', 'ogv', 'flv'.
         */
        return apply_filters( 'wp_video_extensions', array( 'mp4', 'm4v', 'webm', 'ogv', 'flv' ) );
}

/**
 * Builds the Video shortcode output.
 *
 * This implements the functionality of the Video Shortcode for displaying
 * WordPress mp4s in a post.
 *
 * @since 3.6.0
 *
 * @global int $content_width
 *
 * @param array  $attr {
 *     Attributes of the shortcode.
 *
 *     @type string $src      URL to the source of the video file. Default empty.
 *     @type int    $height   Height of the video embed in pixels. Default 360.
 *     @type int    $width    Width of the video embed in pixels. Default $content_width or 640.
 *     @type string $poster   The 'poster' attribute for the `<video>` element. Default empty.
 *     @type string $loop     The 'loop' attribute for the `<video>` element. Default empty.
 *     @type string $autoplay The 'autoplay' attribute for the `<video>` element. Default empty.
 *     @type string $muted    The 'muted' attribute for the `<video>` element. Default false.
 *     @type string $preload  The 'preload' attribute for the `<video>` element.
 *                            Default 'metadata'.
 *     @type string $class    The 'class' attribute for the `<video>` element.
 *                            Default 'wp-video-shortcode'.
 * }
 * @param string $content Shortcode content.
 * @return string|void HTML content to display video.
 */
function wp_video_shortcode( $attr, $content = '' ) {
        global $content_width;
        $post_id = get_post() ? get_the_ID() : 0;

        static $instance = 0;
        ++$instance;

        /**
         * Filters the default video shortcode output.
         *
         * If the filtered output isn't empty, it will be used instead of generating
         * the default video template.
         *
         * @since 3.6.0
         *
         * @see wp_video_shortcode()
         *
         * @param string $html     Empty variable to be replaced with shortcode markup.
         * @param array  $attr     Attributes of the shortcode. See {@see wp_video_shortcode()}.
         * @param string $content  Video shortcode content.
         * @param int    $instance Unique numeric ID of this video shortcode instance.
         */
        $override = apply_filters( 'wp_video_shortcode_override', '', $attr, $content, $instance );

        if ( '' !== $override ) {
                return $override;
        }

        $video = null;

        $default_types = wp_get_video_extensions();
        $defaults_atts = array(
                'src'      => '',
                'poster'   => '',
                'loop'     => '',
                'autoplay' => '',
                'muted'    => 'false',
                'preload'  => 'metadata',
                'width'    => 640,
                'height'   => 360,
                'class'    => 'wp-video-shortcode',
        );

        foreach ( $default_types as $type ) {
                $defaults_atts[ $type ] = '';
        }

        $atts = shortcode_atts( $defaults_atts, $attr, 'video' );

        if ( is_admin() ) {
                // Shrink the video so it isn't huge in the admin.
                if ( $atts['width'] > $defaults_atts['width'] ) {
                        $atts['height'] = round( ( $atts['height'] * $defaults_atts['width'] ) / $atts['width'] );
                        $atts['width']  = $defaults_atts['width'];
                }
        } else {
                // If the video is bigger than the theme.
                if ( ! empty( $content_width ) && $atts['width'] > $content_width ) {
                        $atts['height'] = round( ( $atts['height'] * $content_width ) / $atts['width'] );
                        $atts['width']  = $content_width;
                }
        }

        $is_vimeo      = false;
        $is_youtube    = false;
        $yt_pattern    = '#^https?://(?:www\.)?(?:youtube\.com/watch|youtu\.be/)#';
        $vimeo_pattern = '#^https?://(.+\.)?vimeo\.com/.*#';

        $primary = false;
        if ( ! empty( $atts['src'] ) ) {
                $is_vimeo   = ( preg_match( $vimeo_pattern, $atts['src'] ) );
                $is_youtube = ( preg_match( $yt_pattern, $atts['src'] ) );

                if ( ! $is_youtube && ! $is_vimeo ) {
                        $type = wp_check_filetype( $atts['src'], wp_get_mime_types() );

                        if ( ! in_array( strtolower( $type['ext'] ), $default_types, true ) ) {
                                return sprintf( '<a class="wp-embedded-video" href="%s">%s</a>', esc_url( $atts['src'] ), esc_html( $atts['src'] ) );
                        }
                }

                if ( $is_vimeo ) {
                        wp_enqueue_script( 'mediaelement-vimeo' );
                }

                $primary = true;
                array_unshift( $default_types, 'src' );
        } else {
                foreach ( $default_types as $ext ) {
                        if ( ! empty( $atts[ $ext ] ) ) {
                                $type = wp_check_filetype( $atts[ $ext ], wp_get_mime_types() );
                                if ( strtolower( $type['ext'] ) === $ext ) {
                                        $primary = true;
                                }
                        }
                }
        }

        if ( ! $primary ) {
                $videos = get_attached_media( 'video', $post_id );
                if ( empty( $videos ) ) {
                        return;
                }

                $video       = reset( $videos );
                $atts['src'] = wp_get_attachment_url( $video->ID );
                if ( empty( $atts['src'] ) ) {
                        return;
                }

                array_unshift( $default_types, 'src' );
        }

        /**
         * Filters the media library used for the video shortcode.
         *
         * @since 3.6.0
         *
         * @param string $library Media library used for the video shortcode.
         */
        $library = apply_filters( 'wp_video_shortcode_library', 'mediaelement' );
        if ( 'mediaelement' === $library && did_action( 'init' ) ) {
                wp_enqueue_style( 'wp-mediaelement' );
                wp_enqueue_script( 'wp-mediaelement' );
                wp_enqueue_script( 'mediaelement-vimeo' );
        }

        /*
         * MediaElement.js has issues with some URL formats for Vimeo and YouTube,
         * so update the URL to prevent the ME.js player from breaking.
         */
        if ( 'mediaelement' === $library ) {
                if ( $is_youtube ) {
                        // Remove `feature` query arg and force SSL - see #40866.
                        $atts['src'] = remove_query_arg( 'feature', $atts['src'] );
                        $atts['src'] = set_url_scheme( $atts['src'], 'https' );
                } elseif ( $is_vimeo ) {
                        // Remove all query arguments and force SSL - see #40866.
                        $parsed_vimeo_url = wp_parse_url( $atts['src'] );
                        $vimeo_src        = 'https://' . $parsed_vimeo_url['host'] . $parsed_vimeo_url['path'];

                        // Add loop param for mejs bug - see #40977, not needed after #39686.
                        $loop        = $atts['loop'] ? '1' : '0';
                        $atts['src'] = add_query_arg( 'loop', $loop, $vimeo_src );
                }
        }

        /**
         * Filters the class attribute for the video shortcode output container.
         *
         * @since 3.6.0
         * @since 4.9.0 The `$atts` parameter was added.
         *
         * @param string $class CSS class or list of space-separated classes.
         * @param array  $atts  Array of video shortcode attributes.
         */
        $atts['class'] = apply_filters( 'wp_video_shortcode_class', $atts['class'], $atts );

        $html_atts = array(
                'class'    => $atts['class'],
                'id'       => sprintf( 'video-%d-%d', $post_id, $instance ),
                'width'    => absint( $atts['width'] ),
                'height'   => absint( $atts['height'] ),
                'poster'   => esc_url( $atts['poster'] ),
                'loop'     => wp_validate_boolean( $atts['loop'] ),
                'autoplay' => wp_validate_boolean( $atts['autoplay'] ),
                'muted'    => wp_validate_boolean( $atts['muted'] ),
                'preload'  => $atts['preload'],
        );

        // These ones should just be omitted altogether if they are blank.
        foreach ( array( 'poster', 'loop', 'autoplay', 'preload', 'muted' ) as $a ) {
                if ( empty( $html_atts[ $a ] ) ) {
                        unset( $html_atts[ $a ] );
                }
        }

        $attr_strings = array();
        foreach ( $html_atts as $k => $v ) {
                $attr_strings[] = $k . '="' . esc_attr( $v ) . '"';
        }

        $html = '';

        if ( 'mediaelement' === $library && 1 === $instance ) {
                $html .= "<!--[if lt IE 9]><script>document.createElement('video');</script><![endif]-->\n";
        }

        $html .= sprintf( '<video %s controls="controls">', implode( ' ', $attr_strings ) );

        $fileurl = '';
        $source  = '<source type="%s" src="%s" />';

        foreach ( $default_types as $fallback ) {
                if ( ! empty( $atts[ $fallback ] ) ) {
                        if ( empty( $fileurl ) ) {
                                $fileurl = $atts[ $fallback ];
                        }
                        if ( 'src' === $fallback && $is_youtube ) {
                                $type = array( 'type' => 'video/youtube' );
                        } elseif ( 'src' === $fallback && $is_vimeo ) {
                                $type = array( 'type' => 'video/vimeo' );
                        } else {
                                $type = wp_check_filetype( $atts[ $fallback ], wp_get_mime_types() );
                        }
                        $url   = add_query_arg( '_', $instance, $atts[ $fallback ] );
                        $html .= sprintf( $source, $type['type'], esc_url( $url ) );
                }
        }

        if ( ! empty( $content ) ) {
                if ( str_contains( $content, "\n" ) ) {
                        $content = str_replace( array( "\r\n", "\n", "\t" ), '', $content );
                }
                $html .= trim( $content );
        }

        if ( 'mediaelement' === $library ) {
                $html .= wp_mediaelement_fallback( $fileurl );
        }
        $html .= '</video>';

        $width_rule = '';
        if ( ! empty( $atts['width'] ) ) {
                $width_rule = sprintf( 'width: %dpx;', $atts['width'] );
        }
        $output = sprintf( '<div style="%s" class="wp-video">%s</div>', $width_rule, $html );

        /**
         * Filters the output of the video shortcode.
         *
         * @since 3.6.0
         *
         * @param string $output  Video shortcode HTML output.
         * @param array  $atts    Array of video shortcode attributes.
         * @param string $video   Video file.
         * @param int    $post_id Post ID.
         * @param string $library Media library used for the video shortcode.
         */
        return apply_filters( 'wp_video_shortcode', $output, $atts, $video, $post_id, $library );
}
add_shortcode( 'video', 'wp_video_shortcode' );

/**
 * Gets the previous image link that has the same post parent.
 *
 * @since 5.8.0
 *
 * @see get_adjacent_image_link()
 *
 * @param string|int[] $size Optional. Image size. Accepts any registered image size name, or an array
 *                           of width and height values in pixels (in that order). Default 'thumbnail'.
 * @param string|false $text Optional. Link text. Default false.
 * @return string Markup for previous image link.
 */
function get_previous_image_link( $size = 'thumbnail', $text = false ) {
        return get_adjacent_image_link( true, $size, $text );
}

/**
 * Displays previous image link that has the same post parent.
 *
 * @since 2.5.0
 *
 * @param string|int[] $size Optional. Image size. Accepts any registered image size name, or an array
 *                           of width and height values in pixels (in that order). Default 'thumbnail'.
 * @param string|false $text Optional. Link text. Default false.
 */
function previous_image_link( $size = 'thumbnail', $text = false ) {
        echo get_previous_image_link( $size, $text );
}

/**
 * Gets the next image link that has the same post parent.
 *
 * @since 5.8.0
 *
 * @see get_adjacent_image_link()
 *
 * @param string|int[] $size Optional. Image size. Accepts any registered image size name, or an array
 *                           of width and height values in pixels (in that order). Default 'thumbnail'.
 * @param string|false $text Optional. Link text. Default false.
 * @return string Markup for next image link.
 */
function get_next_image_link( $size = 'thumbnail', $text = false ) {
        return get_adjacent_image_link( false, $size, $text );
}

/**
 * Displays next image link that has the same post parent.
 *
 * @since 2.5.0
 *
 * @param string|int[] $size Optional. Image size. Accepts any registered image size name, or an array
 *                           of width and height values in pixels (in that order). Default 'thumbnail'.
 * @param string|false $text Optional. Link text. Default false.
 */
function next_image_link( $size = 'thumbnail', $text = false ) {
        echo get_next_image_link( $size, $text );
}

/**
 * Gets the next or previous image link that has the same post parent.
 *
 * Retrieves the current attachment object from the $post global.
 *
 * @since 5.8.0
 *
 * @param bool         $prev Optional. Whether to display the next (false) or previous (true) link. Default true.
 * @param string|int[] $size Optional. Image size. Accepts any registered image size name, or an array
 *                           of width and height values in pixels (in that order). Default 'thumbnail'.
 * @param bool         $text Optional. Link text. Default false.
 * @return string Markup for image link.
 */
function get_adjacent_image_link( $prev = true, $size = 'thumbnail', $text = false ) {
        $post        = get_post();
        $attachments = array_values(
                get_children(
                        array(
                                'post_parent'    => $post->post_parent,
                                'post_status'    => 'inherit',
                                'post_type'      => 'attachment',
                                'post_mime_type' => 'image',
                                'order'          => 'ASC',
                                'orderby'        => 'menu_order ID',
                        )
                )
        );

        foreach ( $attachments as $k => $attachment ) {
                if ( (int) $attachment->ID === (int) $post->ID ) {
                        break;
                }
        }

        $output        = '';
        $attachment_id = 0;

        if ( $attachments ) {
                $k = $prev ? $k - 1 : $k + 1;

                if ( isset( $attachments[ $k ] ) ) {
                        $attachment_id = $attachments[ $k ]->ID;
                        $attr          = array( 'alt' => get_the_title( $attachment_id ) );
                        $output        = wp_get_attachment_link( $attachment_id, $size, true, false, $text, $attr );
                }
        }

        $adjacent = $prev ? 'previous' : 'next';

        /**
         * Filters the adjacent image link.
         *
         * The dynamic portion of the hook name, `$adjacent`, refers to the type of adjacency,
         * either 'next', or 'previous'.
         *
         * Possible hook names include:
         *
         *  - `next_image_link`
         *  - `previous_image_link`
         *
         * @since 3.5.0
         *
         * @param string $output        Adjacent image HTML markup.
         * @param int    $attachment_id Attachment ID
         * @param string|int[] $size    Requested image size. Can be any registered image size name, or
         *                              an array of width and height values in pixels (in that order).
         * @param string $text          Link text.
         */
        return apply_filters( "{$adjacent}_image_link", $output, $attachment_id, $size, $text );
}

/**
 * Displays next or previous image link that has the same post parent.
 *
 * Retrieves the current attachment object from the $post global.
 *
 * @since 2.5.0
 *
 * @param bool         $prev Optional. Whether to display the next (false) or previous (true) link. Default true.
 * @param string|int[] $size Optional. Image size. Accepts any registered image size name, or an array
 *                           of width and height values in pixels (in that order). Default 'thumbnail'.
 * @param bool         $text Optional. Link text. Default false.
 */
function adjacent_image_link( $prev = true, $size = 'thumbnail', $text = false ) {
        echo get_adjacent_image_link( $prev, $size, $text );
}

/**
 * Retrieves taxonomies attached to given the attachment.
 *
 * @since 2.5.0
 * @since 4.7.0 Introduced the `$output` parameter.
 *
 * @param int|array|object $attachment Attachment ID, data array, or data object.
 * @param string           $output     Output type. 'names' to return an array of taxonomy names,
 *                                     or 'objects' to return an array of taxonomy objects.
 *                                     Default is 'names'.
 * @return string[]|WP_Taxonomy[] List of taxonomies or taxonomy names. Empty array on failure.
 */
function get_attachment_taxonomies( $attachment, $output = 'names' ) {
        if ( is_int( $attachment ) ) {
                $attachment = get_post( $attachment );
        } elseif ( is_array( $attachment ) ) {
                $attachment = (object) $attachment;
        }

        if ( ! is_object( $attachment ) ) {
                return array();
        }

        $file     = get_attached_file( $attachment->ID );
        $filename = wp_basename( $file );

        $objects = array( 'attachment' );

        if ( str_contains( $filename, '.' ) ) {
                $objects[] = 'attachment:' . substr( $filename, strrpos( $filename, '.' ) + 1 );
        }

        if ( ! empty( $attachment->post_mime_type ) ) {
                $objects[] = 'attachment:' . $attachment->post_mime_type;

                if ( str_contains( $attachment->post_mime_type, '/' ) ) {
                        foreach ( explode( '/', $attachment->post_mime_type ) as $token ) {
                                if ( ! empty( $token ) ) {
                                        $objects[] = "attachment:$token";
                                }
                        }
                }
        }

        $taxonomies = array();

        foreach ( $objects as $object ) {
                $taxes = get_object_taxonomies( $object, $output );

                if ( $taxes ) {
                        $taxonomies = array_merge( $taxonomies, $taxes );
                }
        }

        if ( 'names' === $output ) {
                $taxonomies = array_unique( $taxonomies );
        }

        return $taxonomies;
}

/**
 * Retrieves all of the taxonomies that are registered for attachments.
 *
 * Handles mime-type-specific taxonomies such as attachment:image and attachment:video.
 *
 * @since 3.5.0
 *
 * @see get_taxonomies()
 *
 * @param string $output Optional. The type of taxonomy output to return. Accepts 'names' or 'objects'.
 *                       Default 'names'.
 * @return string[]|WP_Taxonomy[] Array of names or objects of registered taxonomies for attachments.
 */
function get_taxonomies_for_attachments( $output = 'names' ) {
        $taxonomies = array();

        foreach ( get_taxonomies( array(), 'objects' ) as $taxonomy ) {
                foreach ( $taxonomy->object_type as $object_type ) {
                        if ( 'attachment' === $object_type || str_starts_with( $object_type, 'attachment:' ) ) {
                                if ( 'names' === $output ) {
                                        $taxonomies[] = $taxonomy->name;
                                } else {
                                        $taxonomies[ $taxonomy->name ] = $taxonomy;
                                }
                                break;
                        }
                }
        }

        return $taxonomies;
}

/**
 * Determines whether the value is an acceptable type for GD image functions.
 *
 * In PHP 8.0, the GD extension uses GdImage objects for its data structures.
 * This function checks if the passed value is either a GdImage object instance
 * or a resource of type `gd`. Any other type will return false.
 *
 * @since 5.6.0
 *
 * @param resource|GdImage|false $image A value to check the type for.
 * @return bool True if `$image` is either a GD image resource or a GdImage instance,
 *              false otherwise.
 */
function is_gd_image( $image ) {
        if ( $image instanceof GdImage
                || is_resource( $image ) && 'gd' === get_resource_type( $image )
        ) {
                return true;
        }

        return false;
}

/**
 * Creates a new GD image resource with transparency support.
 *
 * @todo Deprecate if possible.
 *
 * @since 2.9.0
 *
 * @param int $width  Image width in pixels.
 * @param int $height Image height in pixels.
 * @return resource|GdImage|false The GD image resource or GdImage instance on success.
 *                                False on failure.
 */
function wp_imagecreatetruecolor( $width, $height ) {
        $img = imagecreatetruecolor( $width, $height );

        if ( is_gd_image( $img )
                && function_exists( 'imagealphablending' ) && function_exists( 'imagesavealpha' )
        ) {
                imagealphablending( $img, false );
                imagesavealpha( $img, true );
        }

        return $img;
}

/**
 * Based on a supplied width/height example, returns the biggest possible dimensions based on the max width/height.
 *
 * @since 2.9.0
 *
 * @see wp_constrain_dimensions()
 *
 * @param int $example_width  The width of an example embed.
 * @param int $example_height The height of an example embed.
 * @param int $max_width      The maximum allowed width.
 * @param int $max_height     The maximum allowed height.
 * @return int[] {
 *     An array of maximum width and height values.
 *
 *     @type int $0 The maximum width in pixels.
 *     @type int $1 The maximum height in pixels.
 * }
 */
function wp_expand_dimensions( $example_width, $example_height, $max_width, $max_height ) {
        $example_width  = (int) $example_width;
        $example_height = (int) $example_height;
        $max_width      = (int) $max_width;
        $max_height     = (int) $max_height;

        return wp_constrain_dimensions( $example_width * 1000000, $example_height * 1000000, $max_width, $max_height );
}

/**
 * Determines the maximum upload size allowed in php.ini.
 *
 * @since 2.5.0
 *
 * @return int Allowed upload size.
 */
function wp_max_upload_size() {
        $u_bytes = wp_convert_hr_to_bytes( ini_get( 'upload_max_filesize' ) );
        $p_bytes = wp_convert_hr_to_bytes( ini_get( 'post_max_size' ) );

        /**
         * Filters the maximum upload size allowed in php.ini.
         *
         * @since 2.5.0
         *
         * @param int $size    Max upload size limit in bytes.
         * @param int $u_bytes Maximum upload filesize in bytes.
         * @param int $p_bytes Maximum size of POST data in bytes.
         */
        return apply_filters( 'upload_size_limit', min( $u_bytes, $p_bytes ), $u_bytes, $p_bytes );
}

/**
 * Returns a WP_Image_Editor instance and loads file into it.
 *
 * @since 3.5.0
 *
 * @param string $path Path to the file to load.
 * @param array  $args Optional. Additional arguments for retrieving the image editor.
 *                     Default empty array.
 * @return WP_Image_Editor|WP_Error The WP_Image_Editor object on success,
 *                                  a WP_Error object otherwise.
 */
function wp_get_image_editor( $path, $args = array() ) {
        $args['path'] = $path;

        // If the mime type is not set in args, try to extract and set it from the file.
        if ( ! isset( $args['mime_type'] ) ) {
                $file_info = wp_check_filetype( $args['path'] );

                /*
                 * If $file_info['type'] is false, then we let the editor attempt to
                 * figure out the file type, rather than forcing a failure based on extension.
                 */
                if ( isset( $file_info ) && $file_info['type'] ) {
                        $args['mime_type'] = $file_info['type'];
                }
        }

        // Check and set the output mime type mapped to the input type.
        if ( isset( $args['mime_type'] ) ) {
                $output_format = wp_get_image_editor_output_format( $path, $args['mime_type'] );
                if ( isset( $output_format[ $args['mime_type'] ] ) ) {
                        $args['output_mime_type'] = $output_format[ $args['mime_type'] ];
                }
        }

        $implementation = _wp_image_editor_choose( $args );

        if ( $implementation ) {
                $editor = new $implementation( $path );
                $loaded = $editor->load();

                if ( is_wp_error( $loaded ) ) {
                        return $loaded;
                }

                return $editor;
        }

        return new WP_Error( 'image_no_editor', __( 'No editor could be selected.' ) );
}

/**
 * Tests whether there is an editor that supports a given mime type or methods.
 *
 * @since 3.5.0
 *
 * @param string|array $args Optional. Array of arguments to retrieve the image editor supports.
 *                           Default empty array.
 * @return bool True if an eligible editor is found; false otherwise.
 */
function wp_image_editor_supports( $args = array() ) {
        return (bool) _wp_image_editor_choose( $args );
}

/**
 * Tests which editors are capable of supporting the request.
 *
 * @ignore
 * @since 3.5.0
 *
 * @param array $args Optional. Array of arguments for choosing a capable editor. Default empty array.
 * @return string|false Class name for the first editor that claims to support the request.
 *                      False if no editor claims to support the request.
 */
function _wp_image_editor_choose( $args = array() ) {
        require_once ABSPATH . WPINC . '/class-wp-image-editor.php';
        require_once ABSPATH . WPINC . '/class-wp-image-editor-gd.php';
        require_once ABSPATH . WPINC . '/class-wp-image-editor-imagick.php';
        require_once ABSPATH . WPINC . '/class-avif-info.php';
        /**
         * Filters the list of image editing library classes.
         *
         * @since 3.5.0
         *
         * @param string[] $image_editors Array of available image editor class names. Defaults are
         *                                'WP_Image_Editor_Imagick', 'WP_Image_Editor_GD'.
         */
        $implementations = apply_filters( 'wp_image_editors', array( 'WP_Image_Editor_Imagick', 'WP_Image_Editor_GD' ) );

        $editors = wp_cache_get( 'wp_image_editor_choose', 'image_editor' );

        if ( ! is_array( $editors ) ) {
                $editors = array();
        }

        // Cache the chosen editor implementation based on specific args and available implementations.
        $cache_key = md5( serialize( array( $args, $implementations ) ) );

        if ( isset( $editors[ $cache_key ] ) ) {
                return $editors[ $cache_key ];
        }

        // Assume no support until a capable implementation is identified.
        $editor = false;

        foreach ( $implementations as $implementation ) {
                if ( ! call_user_func( array( $implementation, 'test' ), $args ) ) {
                        continue;
                }

                // Implementation should support the passed mime type.
                if ( isset( $args['mime_type'] ) &&
                        ! call_user_func(
                                array( $implementation, 'supports_mime_type' ),
                                $args['mime_type']
                        ) ) {
                        continue;
                }

                // Implementation should support requested methods.
                if ( isset( $args['methods'] ) &&
                        array_diff( $args['methods'], get_class_methods( $implementation ) ) ) {

                        continue;
                }

                // Implementation should ideally support the output mime type as well if set and different than the passed type.
                if (
                        isset( $args['mime_type'] ) &&
                        isset( $args['output_mime_type'] ) &&
                        $args['mime_type'] !== $args['output_mime_type'] &&
                        ! call_user_func( array( $implementation, 'supports_mime_type' ), $args['output_mime_type'] )
                ) {
                        /*
                         * This implementation supports the input type but not the output type.
                         * Keep looking to see if we can find an implementation that supports both.
                         */
                        $editor = $implementation;
                        continue;
                }

                // Favor the implementation that supports both input and output mime types.
                $editor = $implementation;
                break;
        }

        $editors[ $cache_key ] = $editor;

        wp_cache_set( 'wp_image_editor_choose', $editors, 'image_editor', DAY_IN_SECONDS );

        return $editor;
}

/**
 * Prints default Plupload arguments.
 *
 * @since 3.4.0
 */
function wp_plupload_default_settings() {
        $wp_scripts = wp_scripts();

        $data = $wp_scripts->get_data( 'wp-plupload', 'data' );
        if ( $data && str_contains( $data, '_wpPluploadSettings' ) ) {
                return;
        }

        $max_upload_size    = wp_max_upload_size();
        $allowed_extensions = array_keys( get_allowed_mime_types() );
        $extensions         = array();
        foreach ( $allowed_extensions as $extension ) {
                $extensions = array_merge( $extensions, explode( '|', $extension ) );
        }

        /*
         * Since 4.9 the `runtimes` setting is hardcoded in our version of Plupload to `html5,html4`,
         * and the `flash_swf_url` and `silverlight_xap_url` are not used.
         */
        $defaults = array(
                'file_data_name' => 'async-upload', // Key passed to $_FILE.
                'url'            => admin_url( 'async-upload.php', 'relative' ),
                'filters'        => array(
                        'max_file_size' => $max_upload_size . 'b',
                        'mime_types'    => array( array( 'extensions' => implode( ',', $extensions ) ) ),
                ),
        );

        /*
         * Currently only iOS Safari supports multiple files uploading,
         * but iOS 7.x has a bug that prevents uploading of videos when enabled.
         * See #29602.
         */
        if ( wp_is_mobile()
                && str_contains( $_SERVER['HTTP_USER_AGENT'], 'OS 7_' )
                && str_contains( $_SERVER['HTTP_USER_AGENT'], 'like Mac OS X' )
        ) {
                $defaults['multi_selection'] = false;
        }

        // Check if WebP images can be edited.
        if ( ! wp_image_editor_supports( array( 'mime_type' => 'image/webp' ) ) ) {
                $defaults['webp_upload_error'] = true;
        }

        // Check if AVIF images can be edited.
        if ( ! wp_image_editor_supports( array( 'mime_type' => 'image/avif' ) ) ) {
                $defaults['avif_upload_error'] = true;
        }

        // Check if HEIC images can be edited.
        if ( ! wp_image_editor_supports( array( 'mime_type' => 'image/heic' ) ) ) {
                $defaults['heic_upload_error'] = true;
        }

        /**
         * Filters the Plupload default settings.
         *
         * @since 3.4.0
         *
         * @param array $defaults Default Plupload settings array.
         */
        $defaults = apply_filters( 'plupload_default_settings', $defaults );

        $params = array(
                'action' => 'upload-attachment',
        );

        /**
         * Filters the Plupload default parameters.
         *
         * @since 3.4.0
         *
         * @param array $params Default Plupload parameters array.
         */
        $params = apply_filters( 'plupload_default_params', $params );

        $params['_wpnonce'] = wp_create_nonce( 'media-form' );

        $defaults['multipart_params'] = $params;

        $settings = array(
                'defaults'      => $defaults,
                'browser'       => array(
                        'mobile'    => wp_is_mobile(),
                        'supported' => _device_can_upload(),
                ),
                'limitExceeded' => is_multisite() && ! is_upload_space_available(),
        );

        $script = 'var _wpPluploadSettings = ' . wp_json_encode( $settings ) . ';';

        if ( $data ) {
                $script = "$data\n$script";
        }

        $wp_scripts->add_data( 'wp-plupload', 'data', $script );
}

/**
 * Prepares an attachment post object for JS, where it is expected
 * to be JSON-encoded and fit into an Attachment model.
 *
 * @since 3.5.0
 *
 * @param int|WP_Post $attachment Attachment ID or object.
 * @return array|void {
 *     Array of attachment details, or void if the parameter does not correspond to an attachment.
 *
 *     @type string $alt                   Alt text of the attachment.
 *     @type string $author                ID of the attachment author, as a string.
 *     @type string $authorName            Name of the attachment author.
 *     @type string $caption               Caption for the attachment.
 *     @type array  $compat                Containing item and meta.
 *     @type string $context               Context, whether it's used as the site icon for example.
 *     @type int    $date                  Uploaded date, timestamp in milliseconds.
 *     @type string $dateFormatted         Formatted date (e.g. June 29, 2018).
 *     @type string $description           Description of the attachment.
 *     @type string $editLink              URL to the edit page for the attachment.
 *     @type string $filename              File name of the attachment.
 *     @type string $filesizeHumanReadable Filesize of the attachment in human readable format (e.g. 1 MB).
 *     @type int    $filesizeInBytes       Filesize of the attachment in bytes.
 *     @type int    $height                If the attachment is an image, represents the height of the image in pixels.
 *     @type string $icon                  Icon URL of the attachment (e.g. /wp-includes/images/media/archive.png).
 *     @type int    $id                    ID of the attachment.
 *     @type string $link                  URL to the attachment.
 *     @type int    $menuOrder             Menu order of the attachment post.
 *     @type array  $meta                  Meta data for the attachment.
 *     @type string $mime                  Mime type of the attachment (e.g. image/jpeg or application/zip).
 *     @type int    $modified              Last modified, timestamp in milliseconds.
 *     @type string $name                  Name, same as title of the attachment.
 *     @type array  $nonces                Nonces for update, delete and edit.
 *     @type string $orientation           If the attachment is an image, represents the image orientation
 *                                         (landscape or portrait).
 *     @type array  $sizes                 If the attachment is an image, contains an array of arrays
 *                                         for the images sizes: thumbnail, medium, large, and full.
 *     @type string $status                Post status of the attachment (usually 'inherit').
 *     @type string $subtype               Mime subtype of the attachment (usually the last part, e.g. jpeg or zip).
 *     @type string $title                 Title of the attachment (usually slugified file name without the extension).
 *     @type string $type                  Type of the attachment (usually first part of the mime type, e.g. image).
 *     @type int    $uploadedTo            Parent post to which the attachment was uploaded.
 *     @type string $uploadedToLink        URL to the edit page of the parent post of the attachment.
 *     @type string $uploadedToTitle       Post title of the parent of the attachment.
 *     @type string $url                   Direct URL to the attachment file (from wp-content).
 *     @type int    $width                 If the attachment is an image, represents the width of the image in pixels.
 * }
 *
 */
function wp_prepare_attachment_for_js( $attachment ) {
        $attachment = get_post( $attachment );

        if ( ! $attachment ) {
                return;
        }

        if ( 'attachment' !== $attachment->post_type ) {
                return;
        }

        $meta = wp_get_attachment_metadata( $attachment->ID );
        if ( str_contains( $attachment->post_mime_type, '/' ) ) {
                list( $type, $subtype ) = explode( '/', $attachment->post_mime_type );
        } else {
                list( $type, $subtype ) = array( $attachment->post_mime_type, '' );
        }

        $attachment_url = wp_get_attachment_url( $attachment->ID );
        $base_url       = str_replace( wp_basename( $attachment_url ), '', $attachment_url );

        $response = array(
                'id'            => $attachment->ID,
                'title'         => $attachment->post_title,
                'filename'      => wp_basename( get_attached_file( $attachment->ID ) ),
                'url'           => $attachment_url,
                'link'          => get_attachment_link( $attachment->ID ),
                'alt'           => get_post_meta( $attachment->ID, '_wp_attachment_image_alt', true ),
                'author'        => $attachment->post_author,
                'description'   => $attachment->post_content,
                'caption'       => $attachment->post_excerpt,
                'name'          => $attachment->post_name,
                'status'        => $attachment->post_status,
                'uploadedTo'    => $attachment->post_parent,
                'date'          => strtotime( $attachment->post_date_gmt ) * 1000,
                'modified'      => strtotime( $attachment->post_modified_gmt ) * 1000,
                'menuOrder'     => $attachment->menu_order,
                'mime'          => $attachment->post_mime_type,
                'type'          => $type,
                'subtype'       => $subtype,
                'icon'          => wp_mime_type_icon( $attachment->ID, '.svg' ),
                'dateFormatted' => mysql2date( __( 'F j, Y' ), $attachment->post_date ),
                'nonces'        => array(
                        'update' => false,
                        'delete' => false,
                        'edit'   => false,
                ),
                'editLink'      => false,
                'meta'          => false,
        );

        $author = new WP_User( $attachment->post_author );

        if ( $author->exists() ) {
                $author_name            = $author->display_name ? $author->display_name : $author->nickname;
                $response['authorName'] = html_entity_decode( $author_name, ENT_QUOTES, get_bloginfo( 'charset' ) );
                $response['authorLink'] = get_edit_user_link( $author->ID );
        } else {
                $response['authorName'] = __( '(no author)' );
        }

        if ( $attachment->post_parent ) {
                $post_parent = get_post( $attachment->post_parent );
                if ( $post_parent ) {
                        $response['uploadedToTitle'] = $post_parent->post_title ? $post_parent->post_title : __( '(no title)' );
                        $response['uploadedToLink']  = get_edit_post_link( $attachment->post_parent, 'raw' );
                }
        }

        $attached_file = get_attached_file( $attachment->ID );

        if ( isset( $meta['filesize'] ) ) {
                $bytes = $meta['filesize'];
        } elseif ( file_exists( $attached_file ) ) {
                $bytes = wp_filesize( $attached_file );
        } else {
                $bytes = '';
        }

        if ( $bytes ) {
                $response['filesizeInBytes']       = $bytes;
                $response['filesizeHumanReadable'] = size_format( $bytes );
        }

        $context             = get_post_meta( $attachment->ID, '_wp_attachment_context', true );
        $response['context'] = ( $context ) ? $context : '';

        if ( current_user_can( 'edit_post', $attachment->ID ) ) {
                $response['nonces']['update'] = wp_create_nonce( 'update-post_' . $attachment->ID );
                $response['nonces']['edit']   = wp_create_nonce( 'image_editor-' . $attachment->ID );
                $response['editLink']         = get_edit_post_link( $attachment->ID, 'raw' );
        }

        if ( current_user_can( 'delete_post', $attachment->ID ) ) {
                $response['nonces']['delete'] = wp_create_nonce( 'delete-post_' . $attachment->ID );
        }

        if ( $meta && ( 'image' === $type || ! empty( $meta['sizes'] ) ) ) {
                $sizes = array();

                /** This filter is documented in wp-admin/includes/media.php */
                $possible_sizes = apply_filters(
                        'image_size_names_choose',
                        array(
                                'thumbnail' => __( 'Thumbnail' ),
                                'medium'    => __( 'Medium' ),
                                'large'     => __( 'Large' ),
                                'full'      => __( 'Full Size' ),
                        )
                );
                unset( $possible_sizes['full'] );

                /*
                 * Loop through all potential sizes that may be chosen. Try to do this with some efficiency.
                 * First: run the image_downsize filter. If it returns something, we can use its data.
                 * If the filter does not return something, then image_downsize() is just an expensive way
                 * to check the image metadata, which we do second.
                 */
                foreach ( $possible_sizes as $size => $label ) {

                        /** This filter is documented in wp-includes/media.php */
                        $downsize = apply_filters( 'image_downsize', false, $attachment->ID, $size );

                        if ( $downsize ) {
                                if ( empty( $downsize[3] ) ) {
                                        continue;
                                }

                                $sizes[ $size ] = array(
                                        'height'      => $downsize[2],
                                        'width'       => $downsize[1],
                                        'url'         => $downsize[0],
                                        'orientation' => $downsize[2] > $downsize[1] ? 'portrait' : 'landscape',
                                );
                        } elseif ( isset( $meta['sizes'][ $size ] ) ) {
                                // Nothing from the filter, so consult image metadata if we have it.
                                $size_meta = $meta['sizes'][ $size ];

                                /*
                                 * We have the actual image size, but might need to further constrain it if content_width is narrower.
                                 * Thumbnail, medium, and full sizes are also checked against the site's height/width options.
                                 */
                                list( $width, $height ) = image_constrain_size_for_editor( $size_meta['width'], $size_meta['height'], $size, 'edit' );

                                $sizes[ $size ] = array(
                                        'height'      => $height,
                                        'width'       => $width,
                                        'url'         => $base_url . $size_meta['file'],
                                        'orientation' => $height > $width ? 'portrait' : 'landscape',
                                );
                        }
                }

                if ( 'image' === $type ) {
                        if ( ! empty( $meta['original_image'] ) ) {
                                $response['originalImageURL']  = wp_get_original_image_url( $attachment->ID );
                                $response['originalImageName'] = wp_basename( wp_get_original_image_path( $attachment->ID ) );
                        }

                        $sizes['full'] = array( 'url' => $attachment_url );

                        if ( isset( $meta['height'], $meta['width'] ) ) {
                                $sizes['full']['height']      = $meta['height'];
                                $sizes['full']['width']       = $meta['width'];
                                $sizes['full']['orientation'] = $meta['height'] > $meta['width'] ? 'portrait' : 'landscape';
                        }

                        $response = array_merge( $response, $sizes['full'] );
                } elseif ( $meta['sizes']['full']['file'] ) {
                        $sizes['full'] = array(
                                'url'         => $base_url . $meta['sizes']['full']['file'],
                                'height'      => $meta['sizes']['full']['height'],
                                'width'       => $meta['sizes']['full']['width'],
                                'orientation' => $meta['sizes']['full']['height'] > $meta['sizes']['full']['width'] ? 'portrait' : 'landscape',
                        );
                }

                $response = array_merge( $response, array( 'sizes' => $sizes ) );
        }

        if ( $meta && 'video' === $type ) {
                if ( isset( $meta['width'] ) ) {
                        $response['width'] = (int) $meta['width'];
                }
                if ( isset( $meta['height'] ) ) {
                        $response['height'] = (int) $meta['height'];
                }
        }

        if ( $meta && ( 'audio' === $type || 'video' === $type ) ) {
                if ( isset( $meta['length_formatted'] ) ) {
                        $response['fileLength']              = $meta['length_formatted'];
                        $response['fileLengthHumanReadable'] = human_readable_duration( $meta['length_formatted'] );
                }

                $response['meta'] = array();
                foreach ( wp_get_attachment_id3_keys( $attachment, 'js' ) as $key => $label ) {
                        $response['meta'][ $key ] = false;

                        if ( ! empty( $meta[ $key ] ) ) {
                                $response['meta'][ $key ] = $meta[ $key ];
                        }
                }

                $id = get_post_thumbnail_id( $attachment->ID );
                if ( ! empty( $id ) ) {
                        list( $src, $width, $height ) = wp_get_attachment_image_src( $id, 'full' );
                        $response['image']            = compact( 'src', 'width', 'height' );
                        list( $src, $width, $height ) = wp_get_attachment_image_src( $id, 'thumbnail' );
                        $response['thumb']            = compact( 'src', 'width', 'height' );
                } else {
                        $src               = wp_mime_type_icon( $attachment->ID, '.svg' );
                        $width             = 48;
                        $height            = 64;
                        $response['image'] = compact( 'src', 'width', 'height' );
                        $response['thumb'] = compact( 'src', 'width', 'height' );
                }
        }

        if ( function_exists( 'get_compat_media_markup' ) ) {
                $response['compat'] = get_compat_media_markup( $attachment->ID, array( 'in_modal' => true ) );
        }

        if ( function_exists( 'get_media_states' ) ) {
                $media_states = get_media_states( $attachment );
                if ( ! empty( $media_states ) ) {
                        $response['mediaStates'] = implode( ', ', $media_states );
                }
        }

        /**
         * Filters the attachment data prepared for JavaScript.
         *
         * @since 3.5.0
         *
         * @param array       $response   Array of prepared attachment data. See {@see wp_prepare_attachment_for_js()}.
         * @param WP_Post     $attachment Attachment object.
         * @param array|false $meta       Array of attachment meta data, or false if there is none.
         */
        return apply_filters( 'wp_prepare_attachment_for_js', $response, $attachment, $meta );
}

/**
 * Enqueues all scripts, styles, settings, and templates necessary to use
 * all media JS APIs.
 *
 * @since 3.5.0
 *
 * @global int       $content_width
 * @global wpdb      $wpdb          WordPress database abstraction object.
 * @global WP_Locale $wp_locale     WordPress date and time locale object.
 *
 * @param array $args {
 *     Arguments for enqueuing media scripts.
 *
 *     @type int|WP_Post $post Post ID or post object.
 * }
 */
function wp_enqueue_media( $args = array() ) {
        // Enqueue me just once per page, please.
        if ( did_action( 'wp_enqueue_media' ) ) {
                return;
        }

        global $content_width, $wpdb, $wp_locale;

        $defaults = array(
                'post' => null,
        );
        $args     = wp_parse_args( $args, $defaults );

        /*
         * We're going to pass the old thickbox media tabs to `media_upload_tabs`
         * to ensure plugins will work. We will then unset those tabs.
         */
        $tabs = array(
                // handler action suffix => tab label
                'type'     => '',
                'type_url' => '',
                'gallery'  => '',
                'library'  => '',
        );

        /** This filter is documented in wp-admin/includes/media.php */
        $tabs = apply_filters( 'media_upload_tabs', $tabs );
        unset( $tabs['type'], $tabs['type_url'], $tabs['gallery'], $tabs['library'] );

        $props = array(
                'link'  => get_option( 'image_default_link_type' ), // DB default is 'file'.
                'align' => get_option( 'image_default_align' ),     // Empty default.
                'size'  => get_option( 'image_default_size' ),      // Empty default.
        );

        $exts      = array_merge( wp_get_audio_extensions(), wp_get_video_extensions() );
        $mimes     = get_allowed_mime_types();
        $ext_mimes = array();
        foreach ( $exts as $ext ) {
                foreach ( $mimes as $ext_preg => $mime_match ) {
                        if ( preg_match( '#' . $ext . '#i', $ext_preg ) ) {
                                $ext_mimes[ $ext ] = $mime_match;
                                break;
                        }
                }
        }

        /**
         * Allows showing or hiding the "Create Audio Playlist" button in the media library.
         *
         * By default, the "Create Audio Playlist" button will always be shown in
         * the media library.  If this filter returns `null`, a query will be run
         * to determine whether the media library contains any audio items.  This
         * was the default behavior prior to version 4.8.0, but this query is
         * expensive for large media libraries.
         *
         * @since 4.7.4
         * @since 4.8.0 The filter's default value is `true` rather than `null`.
         *
         * @link https://core.trac.wordpress.org/ticket/31071
         *
         * @param bool|null $show Whether to show the button, or `null` to decide based
         *                        on whether any audio files exist in the media library.
         */
        $show_audio_playlist = apply_filters( 'media_library_show_audio_playlist', true );
        if ( null === $show_audio_playlist ) {
                $show_audio_playlist = $wpdb->get_var(
                        "SELECT ID
                        FROM $wpdb->posts
                        WHERE post_type = 'attachment'
                        AND post_mime_type LIKE 'audio%'
                        LIMIT 1"
                );
        }

        /**
         * Allows showing or hiding the "Create Video Playlist" button in the media library.
         *
         * By default, the "Create Video Playlist" button will always be shown in
         * the media library.  If this filter returns `null`, a query will be run
         * to determine whether the media library contains any video items.  This
         * was the default behavior prior to version 4.8.0, but this query is
         * expensive for large media libraries.
         *
         * @since 4.7.4
         * @since 4.8.0 The filter's default value is `true` rather than `null`.
         *
         * @link https://core.trac.wordpress.org/ticket/31071
         *
         * @param bool|null $show Whether to show the button, or `null` to decide based
         *                        on whether any video files exist in the media library.
         */
        $show_video_playlist = apply_filters( 'media_library_show_video_playlist', true );
        if ( null === $show_video_playlist ) {
                $show_video_playlist = $wpdb->get_var(
                        "SELECT ID
                        FROM $wpdb->posts
                        WHERE post_type = 'attachment'
                        AND post_mime_type LIKE 'video%'
                        LIMIT 1"
                );
        }

        /**
         * Allows overriding the list of months displayed in the media library.
         *
         * By default (if this filter does not return an array), a query will be
         * run to determine the months that have media items.  This query can be
         * expensive for large media libraries, so it may be desirable for sites to
         * override this behavior.
         *
         * @since 4.7.4
         *
         * @link https://core.trac.wordpress.org/ticket/31071
         *
         * @param stdClass[]|null $months An array of objects with `month` and `year`
         *                                properties, or `null` for default behavior.
         */
        $months = apply_filters( 'media_library_months_with_files', null );
        if ( ! is_array( $months ) ) {
                $months = $wpdb->get_results(
                        $wpdb->prepare(
                                "SELECT DISTINCT YEAR( post_date ) AS year, MONTH( post_date ) AS month
                                FROM $wpdb->posts
                                WHERE post_type = %s
                                ORDER BY post_date DESC",
                                'attachment'
                        )
                );
        }
        foreach ( $months as $month_year ) {
                $month_year->text = sprintf(
                        /* translators: 1: Month, 2: Year. */
                        __( '%1$s %2$d' ),
                        $wp_locale->get_month( $month_year->month ),
                        $month_year->year
                );
        }

        /**
         * Filters whether the Media Library grid has infinite scrolling. Default `false`.
         *
         * @since 5.8.0
         *
         * @param bool $infinite Whether the Media Library grid has infinite scrolling.
         */
        $infinite_scrolling = apply_filters( 'media_library_infinite_scrolling', false );

        $settings = array(
                'tabs'              => $tabs,
                'tabUrl'            => add_query_arg( array( 'chromeless' => true ), admin_url( 'media-upload.php' ) ),
                'mimeTypes'         => wp_list_pluck( get_post_mime_types(), 0 ),
                /** This filter is documented in wp-admin/includes/media.php */
                'captions'          => ! apply_filters( 'disable_captions', '' ),
                'nonce'             => array(
                        'sendToEditor'           => wp_create_nonce( 'media-send-to-editor' ),
                        'setAttachmentThumbnail' => wp_create_nonce( 'set-attachment-thumbnail' ),
                ),
                'post'              => array(
                        'id' => 0,
                ),
                'defaultProps'      => $props,
                'attachmentCounts'  => array(
                        'audio' => ( $show_audio_playlist ) ? 1 : 0,
                        'video' => ( $show_video_playlist ) ? 1 : 0,
                ),
                'oEmbedProxyUrl'    => rest_url( 'oembed/1.0/proxy' ),
                'embedExts'         => $exts,
                'embedMimes'        => $ext_mimes,
                'contentWidth'      => $content_width,
                'months'            => $months,
                'mediaTrash'        => MEDIA_TRASH ? 1 : 0,
                'infiniteScrolling' => ( $infinite_scrolling ) ? 1 : 0,
        );

        $post = null;
        if ( isset( $args['post'] ) ) {
                $post             = get_post( $args['post'] );
                $settings['post'] = array(
                        'id'    => $post->ID,
                        'nonce' => wp_create_nonce( 'update-post_' . $post->ID ),
                );

                $thumbnail_support = current_theme_supports( 'post-thumbnails', $post->post_type ) && post_type_supports( $post->post_type, 'thumbnail' );
                if ( ! $thumbnail_support && 'attachment' === $post->post_type && $post->post_mime_type ) {
                        if ( wp_attachment_is( 'audio', $post ) ) {
                                $thumbnail_support = post_type_supports( 'attachment:audio', 'thumbnail' ) || current_theme_supports( 'post-thumbnails', 'attachment:audio' );
                        } elseif ( wp_attachment_is( 'video', $post ) ) {
                                $thumbnail_support = post_type_supports( 'attachment:video', 'thumbnail' ) || current_theme_supports( 'post-thumbnails', 'attachment:video' );
                        }
                }

                if ( $thumbnail_support ) {
                        $featured_image_id                   = get_post_meta( $post->ID, '_thumbnail_id', true );
                        $settings['post']['featuredImageId'] = $featured_image_id ? $featured_image_id : -1;
                }
        }

        if ( $post ) {
                $post_type_object = get_post_type_object( $post->post_type );
        } else {
                $post_type_object = get_post_type_object( 'post' );
        }

        $strings = array(
                // Generic.
                'mediaFrameDefaultTitle'      => __( 'Media' ),
                'url'                         => __( 'URL' ),
                'addMedia'                    => __( 'Add media' ),
                'search'                      => __( 'Search' ),
                'select'                      => __( 'Select' ),
                'cancel'                      => __( 'Cancel' ),
                'update'                      => __( 'Update' ),
                'replace'                     => __( 'Replace' ),
                'remove'                      => __( 'Remove' ),
                'back'                        => __( 'Back' ),
                /*
                 * translators: This is a would-be plural string used in the media manager.
                 * If there is not a word you can use in your language to avoid issues with the
                 * lack of plural support here, turn it into "selected: %d" then translate it.
                 */
                'selected'                    => __( '%d selected' ),
                'dragInfo'                    => __( 'Drag and drop to reorder media files.' ),

                // Upload.
                'uploadFilesTitle'            => __( 'Upload files' ),
                'uploadImagesTitle'           => __( 'Upload images' ),

                // Library.
                'mediaLibraryTitle'           => __( 'Media Library' ),
                'insertMediaTitle'            => __( 'Add media' ),
                'createNewGallery'            => __( 'Create a new gallery' ),
                'createNewPlaylist'           => __( 'Create a new playlist' ),
                'createNewVideoPlaylist'      => __( 'Create a new video playlist' ),
                'returnToLibrary'             => __( '&#8592; Go to library' ),
                'allMediaItems'               => __( 'All media items' ),
                'allDates'                    => __( 'All dates' ),
                'noItemsFound'                => __( 'No items found.' ),
                'insertIntoPost'              => $post_type_object->labels->insert_into_item,
                'unattached'                  => _x( 'Unattached', 'media items' ),
                'mine'                        => _x( 'Mine', 'media items' ),
                'trash'                       => _x( 'Trash', 'noun' ),
                'uploadedToThisPost'          => $post_type_object->labels->uploaded_to_this_item,
                'warnDelete'                  => __( "You are about to permanently delete this item from your site.\nThis action cannot be undone.\n 'Cancel' to stop, 'OK' to delete." ),
                'warnBulkDelete'              => __( "You are about to permanently delete these items from your site.\nThis action cannot be undone.\n 'Cancel' to stop, 'OK' to delete." ),
                'warnBulkTrash'               => __( "You are about to trash these items.\n  'Cancel' to stop, 'OK' to delete." ),
                'bulkSelect'                  => __( 'Bulk select' ),
                'trashSelected'               => __( 'Move to Trash' ),
                'restoreSelected'             => __( 'Restore from Trash' ),
                'deletePermanently'           => __( 'Delete permanently' ),
                'errorDeleting'               => __( 'Error in deleting the attachment.' ),
                'apply'                       => __( 'Apply' ),
                'filterByDate'                => __( 'Filter by date' ),
                'filterByType'                => __( 'Filter by type' ),
                'searchLabel'                 => __( 'Search media' ),
                'searchMediaLabel'            => __( 'Search media' ),          // Backward compatibility pre-5.3.
                'searchMediaPlaceholder'      => __( 'Search media items...' ), // Placeholder (no ellipsis), backward compatibility pre-5.3.
                /* translators: %d: Number of attachments found in a search. */
                'mediaFound'                  => __( 'Number of media items found: %d' ),
                'noMedia'                     => __( 'No media items found.' ),
                'noMediaTryNewSearch'         => __( 'No media items found. Try a different search.' ),

                // Library Details.
                'attachmentDetails'           => __( 'Attachment details' ),

                // From URL.
                'insertFromUrlTitle'          => __( 'Insert from URL' ),

                // Featured Images.
                'setFeaturedImageTitle'       => $post_type_object->labels->featured_image,
                'setFeaturedImage'            => $post_type_object->labels->set_featured_image,

                // Gallery.
                'createGalleryTitle'          => __( 'Create gallery' ),
                'editGalleryTitle'            => __( 'Edit gallery' ),
                'cancelGalleryTitle'          => __( '&#8592; Cancel gallery' ),
                'insertGallery'               => __( 'Insert gallery' ),
                'updateGallery'               => __( 'Update gallery' ),
                'addToGallery'                => __( 'Add to gallery' ),
                'addToGalleryTitle'           => __( 'Add to gallery' ),
                'reverseOrder'                => __( 'Reverse order' ),

                // Edit Image.
                'imageDetailsTitle'           => __( 'Image details' ),
                'imageReplaceTitle'           => __( 'Replace image' ),
                'imageDetailsCancel'          => __( 'Cancel edit' ),
                'editImage'                   => __( 'Edit image' ),

                // Crop Image.
                'chooseImage'                 => __( 'Choose image' ),
                'selectAndCrop'               => __( 'Select and crop' ),
                'skipCropping'                => __( 'Skip cropping' ),
                'cropImage'                   => __( 'Crop image' ),
                'cropYourImage'               => __( 'Crop your image' ),
                'cropping'                    => __( 'Cropping&hellip;' ),
                /* translators: 1: Suggested width number, 2: Suggested height number. */
                'suggestedDimensions'         => __( 'Suggested image dimensions: %1$s by %2$s pixels.' ),
                'cropError'                   => __( 'There has been an error cropping your image.' ),

                // Edit Audio.
                'audioDetailsTitle'           => __( 'Audio details' ),
                'audioReplaceTitle'           => __( 'Replace audio' ),
                'audioAddSourceTitle'         => __( 'Add audio source' ),
                'audioDetailsCancel'          => __( 'Cancel edit' ),

                // Edit Video.
                'videoDetailsTitle'           => __( 'Video details' ),
                'videoReplaceTitle'           => __( 'Replace video' ),
                'videoAddSourceTitle'         => __( 'Add video source' ),
                'videoDetailsCancel'          => __( 'Cancel edit' ),
                'videoSelectPosterImageTitle' => __( 'Select poster image' ),
                'videoAddTrackTitle'          => __( 'Add subtitles' ),

                // Playlist.
                'playlistDragInfo'            => __( 'Drag and drop to reorder tracks.' ),
                'createPlaylistTitle'         => __( 'Create audio playlist' ),
                'editPlaylistTitle'           => __( 'Edit audio playlist' ),
                'cancelPlaylistTitle'         => __( '&#8592; Cancel audio playlist' ),
                'insertPlaylist'              => __( 'Insert audio playlist' ),
                'updatePlaylist'              => __( 'Update audio playlist' ),
                'addToPlaylist'               => __( 'Add to audio playlist' ),
                'addToPlaylistTitle'          => __( 'Add to Audio Playlist' ),

                // Video Playlist.
                'videoPlaylistDragInfo'       => __( 'Drag and drop to reorder videos.' ),
                'createVideoPlaylistTitle'    => __( 'Create video playlist' ),
                'editVideoPlaylistTitle'      => __( 'Edit video playlist' ),
                'cancelVideoPlaylistTitle'    => __( '&#8592; Cancel video playlist' ),
                'insertVideoPlaylist'         => __( 'Insert video playlist' ),
                'updateVideoPlaylist'         => __( 'Update video playlist' ),
                'addToVideoPlaylist'          => __( 'Add to video playlist' ),
                'addToVideoPlaylistTitle'     => __( 'Add to video Playlist' ),

                // Headings.
                'filterAttachments'           => __( 'Filter media' ),
                'attachmentsList'             => __( 'Media list' ),
        );

        /**
         * Filters the media view settings.
         *
         * @since 3.5.0
         *
         * @param array   $settings List of media view settings.
         * @param WP_Post $post     Post object.
         */
        $settings = apply_filters( 'media_view_settings', $settings, $post );

        /**
         * Filters the media view strings.
         *
         * @since 3.5.0
         *
         * @param string[] $strings Array of media view strings keyed by the name they'll be referenced by in JavaScript.
         * @param WP_Post  $post    Post object.
         */
        $strings = apply_filters( 'media_view_strings', $strings, $post );

        $strings['settings'] = $settings;

        /*
         * Ensure we enqueue media-editor first, that way media-views
         * is registered internally before we try to localize it. See #24724.
         */
        wp_enqueue_script( 'media-editor' );
        wp_localize_script( 'media-views', '_wpMediaViewsL10n', $strings );

        wp_enqueue_script( 'media-audiovideo' );
        wp_enqueue_style( 'media-views' );
        if ( is_admin() ) {
                wp_enqueue_script( 'mce-view' );
                wp_enqueue_script( 'image-edit' );
        }
        wp_enqueue_style( 'imgareaselect' );
        wp_plupload_default_settings();

        require_once ABSPATH . WPINC . '/media-template.php';
        add_action( 'admin_footer', 'wp_print_media_templates' );
        add_action( 'wp_footer', 'wp_print_media_templates' );
        add_action( 'customize_controls_print_footer_scripts', 'wp_print_media_templates' );

        /**
         * Fires at the conclusion of wp_enqueue_media().
         *
         * @since 3.5.0
         */
        do_action( 'wp_enqueue_media' );
}

/**
 * Retrieves media attached to the passed post.
 *
 * @since 3.6.0
 *
 * @param string      $type Mime type.
 * @param int|WP_Post $post Optional. Post ID or WP_Post object. Default is global $post.
 * @return WP_Post[] Array of media attached to the given post.
 */
function get_attached_media( $type, $post = 0 ) {
        $post = get_post( $post );

        if ( ! $post ) {
                return array();
        }

        $args = array(
                'post_parent'    => $post->ID,
                'post_type'      => 'attachment',
                'post_mime_type' => $type,
                'posts_per_page' => -1,
                'orderby'        => 'menu_order',
                'order'          => 'ASC',
        );

        /**
         * Filters arguments used to retrieve media attached to the given post.
         *
         * @since 3.6.0
         *
         * @param array   $args Post query arguments.
         * @param string  $type Mime type of the desired media.
         * @param WP_Post $post Post object.
         */
        $args = apply_filters( 'get_attached_media_args', $args, $type, $post );

        $children = get_children( $args );

        /**
         * Filters the list of media attached to the given post.
         *
         * @since 3.6.0
         *
         * @param WP_Post[] $children Array of media attached to the given post.
         * @param string    $type     Mime type of the media desired.
         * @param WP_Post   $post     Post object.
         */
        return (array) apply_filters( 'get_attached_media', $children, $type, $post );
}

/**
 * Checks the HTML content for an audio, video, object, embed, or iframe tags.
 *
 * @since 3.6.0
 *
 * @param string   $content A string of HTML which might contain media elements.
 * @param string[] $types   An array of media types: 'audio', 'video', 'object', 'embed', or 'iframe'.
 * @return string[] Array of found HTML media elements.
 */
function get_media_embedded_in_content( $content, $types = null ) {
        $html = array();

        /**
         * Filters the embedded media types that are allowed to be returned from the content blob.
         *
         * @since 4.2.0
         *
         * @param string[] $allowed_media_types An array of allowed media types. Default media types are
         *                                      'audio', 'video', 'object', 'embed', and 'iframe'.
         */
        $allowed_media_types = apply_filters( 'media_embedded_in_content_allowed_types', array( 'audio', 'video', 'object', 'embed', 'iframe' ) );

        if ( ! empty( $types ) ) {
                if ( ! is_array( $types ) ) {
                        $types = array( $types );
                }

                $allowed_media_types = array_intersect( $allowed_media_types, $types );
        }

        $tags = implode( '|', $allowed_media_types );

        if ( preg_match_all( '#<(?P<tag>' . $tags . ')[^<]*?(?:>[\s\S]*?<\/(?P=tag)>|\s*\/>)#', $content, $matches ) ) {
                foreach ( $matches[0] as $match ) {
                        $html[] = $match;
                }
        }

        return $html;
}

/**
 * Retrieves galleries from the passed post's content.
 *
 * @since 3.6.0
 *
 * @param int|WP_Post $post Post ID or object.
 * @param bool        $html Optional. Whether to return HTML or data in the array. Default true.
 * @return array A list of arrays, each containing gallery data and srcs parsed
 *               from the expanded shortcode.
 */
function get_post_galleries( $post, $html = true ) {
        $post = get_post( $post );

        if ( ! $post ) {
                return array();
        }

        if ( ! has_shortcode( $post->post_content, 'gallery' ) && ! has_block( 'gallery', $post->post_content ) ) {
                return array();
        }

        $galleries = array();
        if ( preg_match_all( '/' . get_shortcode_regex() . '/s', $post->post_content, $matches, PREG_SET_ORDER ) ) {
                foreach ( $matches as $shortcode ) {
                        if ( 'gallery' === $shortcode[2] ) {
                                $srcs = array();

                                $shortcode_attrs = shortcode_parse_atts( $shortcode[3] );

                                // Specify the post ID of the gallery we're viewing if the shortcode doesn't reference another post already.
                                if ( ! isset( $shortcode_attrs['id'] ) ) {
                                        $shortcode[3] .= ' id="' . (int) $post->ID . '"';
                                }

                                $gallery = do_shortcode_tag( $shortcode );
                                if ( $html ) {
                                        $galleries[] = $gallery;
                                } else {
                                        preg_match_all( '#src=([\'"])(.+?)\1#is', $gallery, $src, PREG_SET_ORDER );
                                        if ( ! empty( $src ) ) {
                                                foreach ( $src as $s ) {
                                                        $srcs[] = $s[2];
                                                }
                                        }

                                        $galleries[] = array_merge(
                                                $shortcode_attrs,
                                                array(
                                                        'src' => array_values( array_unique( $srcs ) ),
                                                )
                                        );
                                }
                        }
                }
        }

        if ( has_block( 'gallery', $post->post_content ) ) {
                $post_blocks = parse_blocks( $post->post_content );

                while ( $block = array_shift( $post_blocks ) ) {
                        $has_inner_blocks = ! empty( $block['innerBlocks'] );

                        // Skip blocks with no blockName and no innerHTML.
                        if ( ! $block['blockName'] ) {
                                continue;
                        }

                        // Skip non-Gallery blocks.
                        if ( 'core/gallery' !== $block['blockName'] ) {
                                // Move inner blocks into the root array before skipping.
                                if ( $has_inner_blocks ) {
                                        array_push( $post_blocks, ...$block['innerBlocks'] );
                                }
                                continue;
                        }

                        // New Gallery block format as HTML.
                        if ( $has_inner_blocks && $html ) {
                                $block_html  = wp_list_pluck( $block['innerBlocks'], 'innerHTML' );
                                $galleries[] = '<figure>' . implode( ' ', $block_html ) . '</figure>';
                                continue;
                        }

                        $srcs = array();

                        // New Gallery block format as an array.
                        if ( $has_inner_blocks ) {
                                $attrs = wp_list_pluck( $block['innerBlocks'], 'attrs' );
                                $ids   = wp_list_pluck( $attrs, 'id' );

                                foreach ( $ids as $id ) {
                                        $url = wp_get_attachment_url( $id );

                                        if ( is_string( $url ) && ! in_array( $url, $srcs, true ) ) {
                                                $srcs[] = $url;
                                        }
                                }

                                $galleries[] = array(
                                        'ids' => implode( ',', $ids ),
                                        'src' => $srcs,
                                );

                                continue;
                        }

                        // Old Gallery block format as HTML.
                        if ( $html ) {
                                $galleries[] = $block['innerHTML'];
                                continue;
                        }

                        // Old Gallery block format as an array.
                        $ids = ! empty( $block['attrs']['ids'] ) ? $block['attrs']['ids'] : array();

                        // If present, use the image IDs from the JSON blob as canonical.
                        if ( ! empty( $ids ) ) {
                                foreach ( $ids as $id ) {
                                        $url = wp_get_attachment_url( $id );

                                        if ( is_string( $url ) && ! in_array( $url, $srcs, true ) ) {
                                                $srcs[] = $url;
                                        }
                                }

                                $galleries[] = array(
                                        'ids' => implode( ',', $ids ),
                                        'src' => $srcs,
                                );

                                continue;
                        }

                        // Otherwise, extract srcs from the innerHTML.
                        preg_match_all( '#src=([\'"])(.+?)\1#is', $block['innerHTML'], $found_srcs, PREG_SET_ORDER );

                        if ( ! empty( $found_srcs[0] ) ) {
                                foreach ( $found_srcs as $src ) {
                                        if ( isset( $src[2] ) && ! in_array( $src[2], $srcs, true ) ) {
                                                $srcs[] = $src[2];
                                        }
                                }
                        }

                        $galleries[] = array( 'src' => $srcs );
                }
        }

        /**
         * Filters the list of all found galleries in the given post.
         *
         * @since 3.6.0
         *
         * @param array   $galleries Associative array of all found post galleries.
         * @param WP_Post $post      Post object.
         */
        return apply_filters( 'get_post_galleries', $galleries, $post );
}

/**
 * Checks a specified post's content for gallery and, if present, return the first
 *
 * @since 3.6.0
 *
 * @param int|WP_Post $post Optional. Post ID or WP_Post object. Default is global $post.
 * @param bool        $html Optional. Whether to return HTML or data. Default is true.
 * @return string|array Gallery data and srcs parsed from the expanded shortcode.
 */
function get_post_gallery( $post = 0, $html = true ) {
        $galleries = get_post_galleries( $post, $html );
        $gallery   = reset( $galleries );

        /**
         * Filters the first-found post gallery.
         *
         * @since 3.6.0
         *
         * @param array       $gallery   The first-found post gallery.
         * @param int|WP_Post $post      Post ID or object.
         * @param array       $galleries Associative array of all found post galleries.
         */
        return apply_filters( 'get_post_gallery', $gallery, $post, $galleries );
}

/**
 * Retrieves the image srcs from galleries from a post's content, if present.
 *
 * @since 3.6.0
 *
 * @see get_post_galleries()
 *
 * @param int|WP_Post $post Optional. Post ID or WP_Post object. Default is global `$post`.
 * @return array A list of lists, each containing image srcs parsed.
 *               from an expanded shortcode
 */
function get_post_galleries_images( $post = 0 ) {
        $galleries = get_post_galleries( $post, false );
        return wp_list_pluck( $galleries, 'src' );
}

/**
 * Checks a post's content for galleries and return the image srcs for the first found gallery.
 *
 * @since 3.6.0
 *
 * @see get_post_gallery()
 *
 * @param int|WP_Post $post Optional. Post ID or WP_Post object. Default is global `$post`.
 * @return string[] A list of a gallery's image srcs in order.
 */
function get_post_gallery_images( $post = 0 ) {
        $gallery = get_post_gallery( $post, false );
        return empty( $gallery['src'] ) ? array() : $gallery['src'];
}

/**
 * Maybe attempts to generate attachment metadata, if missing.
 *
 * @since 3.9.0
 *
 * @param WP_Post $attachment Attachment object.
 */
function wp_maybe_generate_attachment_metadata( $attachment ) {
        if ( empty( $attachment ) || empty( $attachment->ID ) ) {
                return;
        }

        $attachment_id = (int) $attachment->ID;
        $file          = get_attached_file( $attachment_id );
        $meta          = wp_get_attachment_metadata( $attachment_id );

        if ( empty( $meta ) && file_exists( $file ) ) {
                $_meta = get_post_meta( $attachment_id );
                $_lock = 'wp_generating_att_' . $attachment_id;

                if ( ! array_key_exists( '_wp_attachment_metadata', $_meta ) && ! get_transient( $_lock ) ) {
                        set_transient( $_lock, $file );
                        wp_update_attachment_metadata( $attachment_id, wp_generate_attachment_metadata( $attachment_id, $file ) );
                        delete_transient( $_lock );
                }
        }
}

/**
 * Tries to convert an attachment URL into a post ID.
 *
 * @since 4.0.0
 *
 * @global wpdb $wpdb WordPress database abstraction object.
 *
 * @param string $url The URL to resolve.
 * @return int The found post ID, or 0 on failure.
 */
function attachment_url_to_postid( $url ) {
        global $wpdb;

        /**
         * Filters the attachment ID to allow short-circuit the function.
         *
         * Allows plugins to short-circuit attachment ID lookups. Plugins making
         * use of this function should return:
         *
         * - 0 (integer) to indicate the attachment is not found,
         * - attachment ID (integer) to indicate the attachment ID found,
         * - null to indicate WordPress should proceed with the lookup.
         *
         * Warning: The post ID may be null or zero, both of which cast to a
         * boolean false. For information about casting to booleans see the
         * {@link https://www.php.net/manual/en/language.types.boolean.php PHP documentation}.
         * Use the === operator for testing the post ID when developing filters using
         * this hook.
         *
         * @param int|null $post_id The result of the post ID lookup. Null to indicate
         *                          no lookup has been attempted. Default null.
         * @param string   $url     The URL being looked up.
         */
        $post_id = apply_filters( 'pre_attachment_url_to_postid', null, $url );
        if ( null !== $post_id ) {
                return (int) $post_id;
        }

        $dir  = wp_get_upload_dir();
        $path = $url;

        $site_url   = parse_url( $dir['url'] );
        $image_path = parse_url( $path );

        // Force the protocols to match if needed.
        if ( isset( $image_path['scheme'] ) && ( $image_path['scheme'] !== $site_url['scheme'] ) ) {
                $path = str_replace( $image_path['scheme'], $site_url['scheme'], $path );
        }

        if ( str_starts_with( $path, $dir['baseurl'] . '/' ) ) {
                $path = substr( $path, strlen( $dir['baseurl'] . '/' ) );
        }

        $sql = $wpdb->prepare(
                "SELECT post_id, meta_value FROM $wpdb->postmeta WHERE meta_key = '_wp_attached_file' AND meta_value = %s",
                $path
        );

        $results = $wpdb->get_results( $sql );
        $post_id = null;

        if ( $results ) {
                // Use the first available result, but prefer a case-sensitive match, if exists.
                $post_id = reset( $results )->post_id;

                if ( count( $results ) > 1 ) {
                        foreach ( $results as $result ) {
                                if ( $path === $result->meta_value ) {
                                        $post_id = $result->post_id;
                                        break;
                                }
                        }
                }
        }

        /**
         * Filters an attachment ID found by URL.
         *
         * @since 4.2.0
         *
         * @param int|null $post_id The post_id (if any) found by the function.
         * @param string   $url     The URL being looked up.
         */
        return (int) apply_filters( 'attachment_url_to_postid', $post_id, $url );
}

/**
 * Returns the URLs for CSS files used in an iframe-sandbox'd TinyMCE media view.
 *
 * @since 4.0.0
 *
 * @return string[] The relevant CSS file URLs.
 */
function wpview_media_sandbox_styles() {
        $version        = 'ver=' . get_bloginfo( 'version' );
        $mediaelement   = includes_url( "js/mediaelement/mediaelementplayer-legacy.min.css?$version" );
        $wpmediaelement = includes_url( "js/mediaelement/wp-mediaelement.css?$version" );

        return array( $mediaelement, $wpmediaelement );
}

/**
 * Registers the personal data exporter for media.
 *
 * @param array[] $exporters An array of personal data exporters, keyed by their ID.
 * @return array[] Updated array of personal data exporters.
 */
function wp_register_media_personal_data_exporter( $exporters ) {
        $exporters['wordpress-media'] = array(
                'exporter_friendly_name' => __( 'WordPress Media' ),
                'callback'               => 'wp_media_personal_data_exporter',
        );

        return $exporters;
}

/**
 * Finds and exports attachments associated with an email address.
 *
 * @since 4.9.6
 *
 * @param string $email_address The attachment owner email address.
 * @param int    $page          Attachment page number.
 * @return array {
 *     An array of personal data.
 *
 *     @type array[] $data An array of personal data arrays.
 *     @type bool    $done Whether the exporter is finished.
 * }
 */
function wp_media_personal_data_exporter( $email_address, $page = 1 ) {
        // Limit us to 50 attachments at a time to avoid timing out.
        $number = 50;
        $page   = (int) $page;

        $data_to_export = array();

        $user = get_user_by( 'email', $email_address );
        if ( false === $user ) {
                return array(
                        'data' => $data_to_export,
                        'done' => true,
                );
        }

        $post_query = new WP_Query(
                array(
                        'author'         => $user->ID,
                        'posts_per_page' => $number,
                        'paged'          => $page,
                        'post_type'      => 'attachment',
                        'post_status'    => 'any',
                        'orderby'        => 'ID',
                        'order'          => 'ASC',
                )
        );

        foreach ( (array) $post_query->posts as $post ) {
                $attachment_url = wp_get_attachment_url( $post->ID );

                if ( $attachment_url ) {
                        $post_data_to_export = array(
                                array(
                                        'name'  => __( 'URL' ),
                                        'value' => $attachment_url,
                                ),
                        );

                        $data_to_export[] = array(
                                'group_id'          => 'media',
                                'group_label'       => __( 'Media' ),
                                'group_description' => __( 'User&#8217;s media data.' ),
                                'item_id'           => "post-{$post->ID}",
                                'data'              => $post_data_to_export,
                        );
                }
        }

        $done = $post_query->max_num_pages <= $page;

        return array(
                'data' => $data_to_export,
                'done' => $done,
        );
}

/**
 * Adds additional default image sub-sizes.
 *
 * These sizes are meant to enhance the way WordPress displays images on the front-end on larger,
 * high-density devices. They make it possible to generate more suitable `srcset` and `sizes` attributes
 * when the users upload large images.
 *
 * The sizes can be changed or removed by themes and plugins but that is not recommended.
 * The size "names" reflect the image dimensions, so changing the sizes would be quite misleading.
 *
 * @since 5.3.0
 * @access private
 */
function _wp_add_additional_image_sizes() {
        // 2x medium_large size.
        add_image_size( '1536x1536', 1536, 1536 );
        // 2x large size.
        add_image_size( '2048x2048', 2048, 2048 );
}

/**
 * Callback to enable showing of the user error when uploading .heic images.
 *
 * @since 5.5.0
 * @since 6.7.0 The default behavior is to enable heic uploads as long as the server
 *              supports the format. The uploads are converted to JPEG's by default.
 *
 * @param array[] $plupload_settings The settings for Plupload.js.
 * @return array[] Modified settings for Plupload.js.
 */
function wp_show_heic_upload_error( $plupload_settings ) {
        // Check if HEIC images can be edited.
        if ( ! wp_image_editor_supports( array( 'mime_type' => 'image/heic' ) ) ) {
                $plupload_init['heic_upload_error'] = true;
        }
        return $plupload_settings;
}

/**
 * Allows PHP's getimagesize() to be debuggable when necessary.
 *
 * @since 5.7.0
 * @since 5.8.0 Added support for WebP images.
 * @since 6.5.0 Added support for AVIF images.
 *
 * @param string $filename   The file path.
 * @param array  $image_info Optional. Extended image information (passed by reference).
 * @return array|false Array of image information or false on failure.
 */
function wp_getimagesize( $filename, ?array &$image_info = null ) {
        // Don't silence errors when in debug mode, unless running unit tests.
        if ( defined( 'WP_DEBUG' ) && WP_DEBUG && ! defined( 'WP_RUN_CORE_TESTS' ) ) {
                if ( 2 === func_num_args() ) {
                        $info = getimagesize( $filename, $image_info );
                } else {
                        $info = getimagesize( $filename );
                }
        } else {
                /*
                 * Silencing notice and warning is intentional.
                 *
                 * getimagesize() has a tendency to generate errors, such as
                 * "corrupt JPEG data: 7191 extraneous bytes before marker",
                 * even when it's able to provide image size information.
                 *
                 * See https://core.trac.wordpress.org/ticket/42480
                 */
                if ( 2 === func_num_args() ) {
                        $info = @getimagesize( $filename, $image_info );
                } else {
                        $info = @getimagesize( $filename );
                }
        }

        if (
                ! empty( $info ) &&
                // Some PHP versions return 0x0 sizes from `getimagesize` for unrecognized image formats, including AVIFs.
                ! ( empty( $info[0] ) && empty( $info[1] ) )
        ) {
                return $info;
        }

        $image_mime_type = wp_get_image_mime( $filename );

        // Not an image?
        if ( false === $image_mime_type ) {
                return false;
        }

        /*
         * For PHP versions that don't support WebP images,
         * extract the image size info from the file headers.
         */
        if ( 'image/webp' === $image_mime_type ) {
                $webp_info = wp_get_webp_info( $filename );
                $width     = $webp_info['width'];
                $height    = $webp_info['height'];

                // Mimic the native return format.
                if ( $width && $height ) {
                        return array(
                                $width,
                                $height,
                                IMAGETYPE_WEBP,
                                sprintf(
                                        'width="%d" height="%d"',
                                        $width,
                                        $height
                                ),
                                'mime' => 'image/webp',
                        );
                }
        }

        // For PHP versions that don't support AVIF images, extract the image size info from the file headers.
        if ( 'image/avif' === $image_mime_type ) {
                $avif_info = wp_get_avif_info( $filename );

                $width  = $avif_info['width'];
                $height = $avif_info['height'];

                // Mimic the native return format.
                if ( $width && $height ) {
                        return array(
                                $width,
                                $height,
                                IMAGETYPE_AVIF,
                                sprintf(
                                        'width="%d" height="%d"',
                                        $width,
                                        $height
                                ),
                                'mime' => 'image/avif',
                        );
                }
        }

        // For PHP versions that don't support HEIC images, extract the size info using Imagick when available.
        if ( wp_is_heic_image_mime_type( $image_mime_type ) ) {
                $editor = wp_get_image_editor( $filename );

                if ( is_wp_error( $editor ) ) {
                        return false;
                }

                // If the editor for HEICs is Imagick, use it to get the image size.
                if ( $editor instanceof WP_Image_Editor_Imagick ) {
                        $size = $editor->get_size();
                        return array(
                                $size['width'],
                                $size['height'],
                                IMAGETYPE_HEIC,
                                sprintf(
                                        'width="%d" height="%d"',
                                        $size['width'],
                                        $size['height']
                                ),
                                'mime' => 'image/heic',
                        );
                }
        }

        // The image could not be parsed.
        return false;
}

/**
 * Extracts meta information about an AVIF file: width, height, bit depth, and number of channels.
 *
 * @since 6.5.0
 *
 * @param string $filename Path to an AVIF file.
 * @return array {
 *     An array of AVIF image information.
 *
 *     @type int|false $width        Image width on success, false on failure.
 *     @type int|false $height       Image height on success, false on failure.
 *     @type int|false $bit_depth    Image bit depth on success, false on failure.
 *     @type int|false $num_channels Image number of channels on success, false on failure.
 * }
 */
function wp_get_avif_info( $filename ) {
        $results = array(
                'width'        => false,
                'height'       => false,
                'bit_depth'    => false,
                'num_channels' => false,
        );

        if ( 'image/avif' !== wp_get_image_mime( $filename ) ) {
                return $results;
        }

        // Parse the file using libavifinfo's PHP implementation.
        require_once ABSPATH . WPINC . '/class-avif-info.php';

        $handle = fopen( $filename, 'rb' );
        if ( $handle ) {
                $parser  = new Avifinfo\Parser( $handle );
                $success = $parser->parse_ftyp() && $parser->parse_file();
                fclose( $handle );
                if ( $success ) {
                        $results = $parser->features->primary_item_features;
                }
        }
        return $results;
}

/**
 * Extracts meta information about a WebP file: width, height, and type.
 *
 * @since 5.8.0
 *
 * @param string $filename Path to a WebP file.
 * @return array {
 *     An array of WebP image information.
 *
 *     @type int|false    $width  Image width on success, false on failure.
 *     @type int|false    $height Image height on success, false on failure.
 *     @type string|false $type   The WebP type: one of 'lossy', 'lossless' or 'animated-alpha'.
 *                                False on failure.
 * }
 */
function wp_get_webp_info( $filename ) {
        $width  = false;
        $height = false;
        $type   = false;

        if ( 'image/webp' !== wp_get_image_mime( $filename ) ) {
                return compact( 'width', 'height', 'type' );
        }

        $magic = file_get_contents( $filename, false, null, 0, 40 );

        if ( false === $magic ) {
                return compact( 'width', 'height', 'type' );
        }

        // Make sure we got enough bytes.
        if ( strlen( $magic ) < 40 ) {
                return compact( 'width', 'height', 'type' );
        }

        /*
         * The headers are a little different for each of the three formats.
         * Header values based on WebP docs, see https://developers.google.com/speed/webp/docs/riff_container.
         */
        switch ( substr( $magic, 12, 4 ) ) {
                // Lossy WebP.
                case 'VP8 ':
                        $parts  = unpack( 'v2', substr( $magic, 26, 4 ) );
                        $width  = (int) ( $parts[1] & 0x3FFF );
                        $height = (int) ( $parts[2] & 0x3FFF );
                        $type   = 'lossy';
                        break;
                // Lossless WebP.
                case 'VP8L':
                        $parts  = unpack( 'C4', substr( $magic, 21, 4 ) );
                        $width  = (int) ( $parts[1] | ( ( $parts[2] & 0x3F ) << 8 ) ) + 1;
                        $height = (int) ( ( ( $parts[2] & 0xC0 ) >> 6 ) | ( $parts[3] << 2 ) | ( ( $parts[4] & 0x03 ) << 10 ) ) + 1;
                        $type   = 'lossless';
                        break;
                // Animated/alpha WebP.
                case 'VP8X':
                        // Pad 24-bit int.
                        $width = unpack( 'V', substr( $magic, 24, 3 ) . "\x00" );
                        $width = (int) ( $width[1] & 0xFFFFFF ) + 1;
                        // Pad 24-bit int.
                        $height = unpack( 'V', substr( $magic, 27, 3 ) . "\x00" );
                        $height = (int) ( $height[1] & 0xFFFFFF ) + 1;
                        $type   = 'animated-alpha';
                        break;
        }

        return compact( 'width', 'height', 'type' );
}

/**
 * Gets loading optimization attributes.
 *
 * This function returns an array of attributes that should be merged into the given attributes array to optimize
 * loading performance. Potential attributes returned by this function are:
 * - `loading` attribute with a value of "lazy"
 * - `fetchpriority` attribute with a value of "high"
 * - `decoding` attribute with a value of "async"
 *
 * If any of these attributes are already present in the given attributes, they will not be modified. Note that no
 * element should have both `loading="lazy"` and `fetchpriority="high"`, so the function will trigger a warning in case
 * both attributes are present with those values.
 *
 * @since 6.3.0
 *
 * @global WP_Query $wp_query WordPress Query object.
 *
 * @param string $tag_name The tag name.
 * @param array  $attr     Array of the attributes for the tag.
 * @param string $context  Context for the element for which the loading optimization attribute is requested.
 * @return array Loading optimization attributes.
 */
function wp_get_loading_optimization_attributes( $tag_name, $attr, $context ) {
        global $wp_query;

        /**
         * Filters whether to short-circuit loading optimization attributes.
         *
         * Returning an array from the filter will effectively short-circuit the loading of optimization attributes,
         * returning that value instead.
         *
         * @since 6.4.0
         *
         * @param array|false $loading_attrs False by default, or array of loading optimization attributes to short-circuit.
         * @param string      $tag_name      The tag name.
         * @param array       $attr          Array of the attributes for the tag.
         * @param string      $context       Context for the element for which the loading optimization attribute is requested.
         */
        $loading_attrs = apply_filters( 'pre_wp_get_loading_optimization_attributes', false, $tag_name, $attr, $context );

        if ( is_array( $loading_attrs ) ) {
                return $loading_attrs;
        }

        $loading_attrs = array();

        /*
         * Skip lazy-loading for the overall block template, as it is handled more granularly.
         * The skip is also applicable for `fetchpriority`.
         */
        if ( 'template' === $context ) {
                /** This filter is documented in wp-includes/media.php */
                return apply_filters( 'wp_get_loading_optimization_attributes', $loading_attrs, $tag_name, $attr, $context );
        }

        // For now this function only supports images and iframes.
        if ( 'img' !== $tag_name && 'iframe' !== $tag_name ) {
                /** This filter is documented in wp-includes/media.php */
                return apply_filters( 'wp_get_loading_optimization_attributes', $loading_attrs, $tag_name, $attr, $context );
        }

        /*
         * Skip programmatically created images within content blobs as they need to be handled together with the other
         * images within the post content or widget content.
         * Without this clause, they would already be considered within their own context which skews the image count and
         * can result in the first post content image being lazy-loaded or an image further down the page being marked as a
         * high priority.
         */
        if (
                'the_content' !== $context && doing_filter( 'the_content' ) ||
                'widget_text_content' !== $context && doing_filter( 'widget_text_content' ) ||
                'widget_block_content' !== $context && doing_filter( 'widget_block_content' )
        ) {
                /** This filter is documented in wp-includes/media.php */
                return apply_filters( 'wp_get_loading_optimization_attributes', $loading_attrs, $tag_name, $attr, $context );

        }

        /*
         * Add `decoding` with a value of "async" for every image unless it has a
         * conflicting `decoding` attribute already present.
         */
        if ( 'img' === $tag_name ) {
                if ( isset( $attr['decoding'] ) ) {
                        $loading_attrs['decoding'] = $attr['decoding'];
                } else {
                        $loading_attrs['decoding'] = 'async';
                }
        }

        // For any resources, width and height must be provided, to avoid layout shifts.
        if ( ! isset( $attr['width'], $attr['height'] ) ) {
                /** This filter is documented in wp-includes/media.php */
                return apply_filters( 'wp_get_loading_optimization_attributes', $loading_attrs, $tag_name, $attr, $context );
        }

        /*
         * The key function logic starts here.
         */
        $maybe_in_viewport    = null;
        $increase_count       = false;
        $maybe_increase_count = false;

        // Logic to handle a `loading` attribute that is already provided.
        if ( isset( $attr['loading'] ) ) {
                /*
                 * Interpret "lazy" as not in viewport. Any other value can be
                 * interpreted as in viewport (realistically only "eager" or `false`
                 * to force-omit the attribute are other potential values).
                 */
                if ( 'lazy' === $attr['loading'] ) {
                        $maybe_in_viewport = false;
                } else {
                        $maybe_in_viewport = true;
                }
        }

        // Logic to handle a `fetchpriority` attribute that is already provided.
        if ( isset( $attr['fetchpriority'] ) && 'high' === $attr['fetchpriority'] ) {
                /*
                 * If the image was already determined to not be in the viewport (e.g.
                 * from an already provided `loading` attribute), trigger a warning.
                 * Otherwise, the value can be interpreted as in viewport, since only
                 * the most important in-viewport image should have `fetchpriority` set
                 * to "high".
                 */
                if ( false === $maybe_in_viewport ) {
                        _doing_it_wrong(
                                __FUNCTION__,
                                __( 'An image should not be lazy-loaded and marked as high priority at the same time.' ),
                                '6.3.0'
                        );
                        /*
                         * Set `fetchpriority` here for backward-compatibility as we should
                         * not override what a developer decided, even though it seems
                         * incorrect.
                         */
                        $loading_attrs['fetchpriority'] = 'high';
                } else {
                        $maybe_in_viewport = true;
                }
        }

        if ( null === $maybe_in_viewport ) {
                $header_enforced_contexts = array(
                        'template_part_' . WP_TEMPLATE_PART_AREA_HEADER => true,
                        'get_header_image_tag' => true,
                );

                /**
                 * Filters the header-specific contexts.
                 *
                 * @since 6.4.0
                 *
                 * @param array $default_header_enforced_contexts Map of contexts for which elements should be considered
                 *                                                in the header of the page, as $context => $enabled
                 *                                                pairs. The $enabled should always be true.
                 */
                $header_enforced_contexts = apply_filters( 'wp_loading_optimization_force_header_contexts', $header_enforced_contexts );

                // Consider elements with these header-specific contexts to be in viewport.
                if ( isset( $header_enforced_contexts[ $context ] ) ) {
                        $maybe_in_viewport    = true;
                        $maybe_increase_count = true;
                } elseif ( ! is_admin() && in_the_loop() && is_main_query() ) {
                        /*
                         * Get the content media count, since this is a main query
                         * content element. This is accomplished by "increasing"
                         * the count by zero, as the only way to get the count is
                         * to call this function.
                         * The actual count increase happens further below, based
                         * on the `$increase_count` flag set here.
                         */
                        $content_media_count = wp_increase_content_media_count( 0 );
                        $increase_count      = true;

                        // If the count so far is below the threshold, `loading` attribute is omitted.
                        if ( $content_media_count < wp_omit_loading_attr_threshold() ) {
                                $maybe_in_viewport = true;
                        } else {
                                $maybe_in_viewport = false;
                        }
                } elseif (
                        // Only apply for main query but before the loop.
                        $wp_query->before_loop && $wp_query->is_main_query()
                        /*
                         * Any image before the loop, but after the header has started should not be lazy-loaded,
                         * except when the footer has already started which can happen when the current template
                         * does not include any loop.
                         */
                        && did_action( 'get_header' ) && ! did_action( 'get_footer' )
                        ) {
                        $maybe_in_viewport    = true;
                        $maybe_increase_count = true;
                }
        }

        /*
         * If the element is in the viewport (`true`), potentially add
         * `fetchpriority` with a value of "high". Otherwise, i.e. if the element
         * is not not in the viewport (`false`) or it is unknown (`null`), add
         * `loading` with a value of "lazy".
         */
        if ( $maybe_in_viewport ) {
                $loading_attrs = wp_maybe_add_fetchpriority_high_attr( $loading_attrs, $tag_name, $attr );
        } else {
                // Only add `loading="lazy"` if the feature is enabled.
                if ( wp_lazy_loading_enabled( $tag_name, $context ) ) {
                        $loading_attrs['loading'] = 'lazy';
                }
        }

        /*
         * If flag was set based on contextual logic above, increase the content
         * media count, either unconditionally, or based on whether the image size
         * is larger than the threshold.
         */
        if ( $increase_count ) {
                wp_increase_content_media_count();
        } elseif ( $maybe_increase_count ) {
                /** This filter is documented in wp-includes/media.php */
                $wp_min_priority_img_pixels = apply_filters( 'wp_min_priority_img_pixels', 50000 );

                if ( $wp_min_priority_img_pixels <= $attr['width'] * $attr['height'] ) {
                        wp_increase_content_media_count();
                }
        }

        /**
         * Filters the loading optimization attributes.
         *
         * @since 6.4.0
         *
         * @param array  $loading_attrs The loading optimization attributes.
         * @param string $tag_name      The tag name.
         * @param array  $attr          Array of the attributes for the tag.
         * @param string $context       Context for the element for which the loading optimization attribute is requested.
         */
        return apply_filters( 'wp_get_loading_optimization_attributes', $loading_attrs, $tag_name, $attr, $context );
}

/**
 * Gets the threshold for how many of the first content media elements to not lazy-load.
 *
 * This function runs the {@see 'wp_omit_loading_attr_threshold'} filter, which uses a default threshold value of 3.
 * The filter is only run once per page load, unless the `$force` parameter is used.
 *
 * @since 5.9.0
 *
 * @param bool $force Optional. If set to true, the filter will be (re-)applied even if it already has been before.
 *                    Default false.
 * @return int The number of content media elements to not lazy-load.
 */
function wp_omit_loading_attr_threshold( $force = false ) {
        static $omit_threshold;

        // This function may be called multiple times. Run the filter only once per page load.
        if ( ! isset( $omit_threshold ) || $force ) {
                /**
                 * Filters the threshold for how many of the first content media elements to not lazy-load.
                 *
                 * For these first content media elements, the `loading` attribute will be omitted. By default, this is the case
                 * for only the very first content media element.
                 *
                 * @since 5.9.0
                 * @since 6.3.0 The default threshold was changed from 1 to 3.
                 *
                 * @param int $omit_threshold The number of media elements where the `loading` attribute will not be added. Default 3.
                 */
                $omit_threshold = apply_filters( 'wp_omit_loading_attr_threshold', 3 );
        }

        return $omit_threshold;
}

/**
 * Increases an internal content media count variable.
 *
 * @since 5.9.0
 * @access private
 *
 * @param int $amount Optional. Amount to increase by. Default 1.
 * @return int The latest content media count, after the increase.
 */
function wp_increase_content_media_count( $amount = 1 ) {
        static $content_media_count = 0;

        $content_media_count += $amount;

        return $content_media_count;
}

/**
 * Determines whether to add `fetchpriority='high'` to loading attributes.
 *
 * @since 6.3.0
 * @access private
 *
 * @param array  $loading_attrs Array of the loading optimization attributes for the element.
 * @param string $tag_name      The tag name.
 * @param array  $attr          Array of the attributes for the element.
 * @return array Updated loading optimization attributes for the element.
 */
function wp_maybe_add_fetchpriority_high_attr( $loading_attrs, $tag_name, $attr ) {
        // For now, adding `fetchpriority="high"` is only supported for images.
        if ( 'img' !== $tag_name ) {
                return $loading_attrs;
        }

        if ( isset( $attr['fetchpriority'] ) ) {
                /*
                 * While any `fetchpriority` value could be set in `$loading_attrs`,
                 * for consistency we only do it for `fetchpriority="high"` since that
                 * is the only possible value that WordPress core would apply on its
                 * own.
                 */
                if ( 'high' === $attr['fetchpriority'] ) {
                        $loading_attrs['fetchpriority'] = 'high';
                        wp_high_priority_element_flag( false );
                }

                return $loading_attrs;
        }

        // Lazy-loading and `fetchpriority="high"` are mutually exclusive.
        if ( isset( $loading_attrs['loading'] ) && 'lazy' === $loading_attrs['loading'] ) {
                return $loading_attrs;
        }

        if ( ! wp_high_priority_element_flag() ) {
                return $loading_attrs;
        }

        /**
         * Filters the minimum square-pixels threshold for an image to be eligible as the high-priority image.
         *
         * @since 6.3.0
         *
         * @param int $threshold Minimum square-pixels threshold. Default 50000.
         */
        $wp_min_priority_img_pixels = apply_filters( 'wp_min_priority_img_pixels', 50000 );

        if ( $wp_min_priority_img_pixels <= $attr['width'] * $attr['height'] ) {
                $loading_attrs['fetchpriority'] = 'high';
                wp_high_priority_element_flag( false );
        }

        return $loading_attrs;
}

/**
 * Accesses a flag that indicates if an element is a possible candidate for `fetchpriority='high'`.
 *
 * @since 6.3.0
 * @access private
 *
 * @param bool $value Optional. Used to change the static variable. Default null.
 * @return bool Returns true if high-priority element was marked already, otherwise false.
 */
function wp_high_priority_element_flag( $value = null ) {
        static $high_priority_element = true;

        if ( is_bool( $value ) ) {
                $high_priority_element = $value;
        }

        return $high_priority_element;
}

/**
 * Determines the output format for the image editor.
 *
 * @since 6.7.0
 * @access private
 *
 * @param string $filename  Path to the image.
 * @param string $mime_type The source image mime type.
 * @return string[] An array of mime type mappings.
 */
function wp_get_image_editor_output_format( $filename, $mime_type ) {
        $output_format = array(
                'image/heic'          => 'image/jpeg',
                'image/heif'          => 'image/jpeg',
                'image/heic-sequence' => 'image/jpeg',
                'image/heif-sequence' => 'image/jpeg',
        );

        /**
         * Filters the image editor output format mapping.
         *
         * Enables filtering the mime type used to save images. By default HEIC/HEIF images
         * are converted to JPEGs.
         *
         * @see WP_Image_Editor::get_output_format()
         *
         * @since 5.8.0
         * @since 6.7.0 The default was changed from an empty array to an array
         *              containing the HEIC/HEIF images mime types.
         *
         * @param string[] $output_format {
         *     An array of mime type mappings. Maps a source mime type to a new
         *     destination mime type. By default maps HEIC/HEIF input to JPEG output.
         *
         *     @type string ...$0 The new mime type.
         * }
         * @param string $filename  Path to the image.
         * @param string $mime_type The source image mime type.
         */
        return apply_filters( 'image_editor_output_format', $output_format, $filename, $mime_type );
}