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Add functions to parse audio or video data out of arbitrary content or a post

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props wonderboymusic. see #23572

git-svn-id: http://core.svn.wordpress.org/trunk@23774 1a063a9b-81f0-0310-95a4-ce76da25c4cd
This commit is contained in:
Mark Jaquith 2013-03-22 05:55:08 +00:00
parent dd07ebb9b9
commit 026d8847b4
1 changed files with 129 additions and 0 deletions
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129
wp-includes/media.php
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@ -1821,6 +1821,135 @@ function get_attached_video( $post_id = 0 ) {
return $children;
}
/**
* Extract the srcs from the post's [{media type}] <source>s
*
* @since 3.6.0
*
* @param string $content A string which might contain media data.
* @param boolean $remove Whether to remove the found URL from the passed content.
* @return array A list of lists. Each item has a list of sources corresponding
* to a [{media type}]'s primary src and specified fallbacks
*/
function get_content_media( $type, &$content, $remove = false ) {
$src = '';
$items = array();
$matches = array();
if ( preg_match_all( '/' . get_shortcode_regex() . '/s', $content, $matches, PREG_SET_ORDER ) && ! empty( $matches ) ) {
foreach ( $matches as $shortcode ) {
if ( $type === $shortcode[2] ) {
$srcs = array();
$count = 1;
if ( $remove )
$content = str_replace( $shortcode[0], '', $content, $count );
$item = do_shortcode_tag( $shortcode );
preg_match_all( '#src=[\'"](.+?)[\'"]#is', $item, $src, PREG_SET_ORDER );
if ( ! empty( $src ) ) {
foreach ( $src as $s )
$srcs[] = $s[1];
$items[] = array_values( array_unique( $srcs ) );
}
}
}
}
return $items;
}
/**
* Check the content blob for an <{media type}>, <object>, <embed>, or <iframe>, in that order
* If no HTML tag is found, check the first line of the post for a URL
*
* @since 3.6.0
*
* @param string $content A string which might contain media data.
* @param boolean $remove Whether to remove the found URL from the passed content.
* @return array A list of found HTML media embeds and possibly a URL by itself
*/
function get_embedded_media( $type, &$content, $remove = false ) {
$html = array();
$matches = '';
foreach ( array( $type, 'object', 'embed', 'iframe' ) as $tag ) {
if ( preg_match( '#' . get_tag_regex( $tag ) . '#', $content, $matches ) ) {
$html[] = $matches[1];
if ( $remove )
$content = str_replace( $matches[0], '', $content );
return $html;
}
}
$lines = explode( "\n", trim( $content ) );
$line = trim( array_shift( $lines ) );
if ( 0 === stripos( $line, 'http' ) ) {
if ( $remove )
$content = join( "\n", $lines );
$html[] = $line;
}
return $html;
}
/**
* Extract the srcs from the post's [audio] <source>s
*
* @since 3.6.0
*
* @param string $content A string which might contain audio data.
* @param boolean $remove Whether to remove the found URL from the passed content.
* @return array A list of lists. Each item has a list of sources corresponding
* to a [audio]'s primary src and specified fallbacks
*/
function get_content_audio( &$content, $remove = false ) {
return get_content_media( 'audio', $content, $remove );
}
/**
* Check the content blob for an <audio>, <object>, <embed>, or <iframe>, in that order
* If no HTML tag is found, check the first line of the post for a URL
*
* @since 3.6.0
*
* @param string $content A string which might contain audio data.
* @param boolean $remove Whether to remove the found URL from the passed content.
* @return array A list of found HTML audio embeds and possibly a URL by itself
*/
function get_embedded_audio( &$content, $remove = false ) {
return get_embedded_media( 'audio', $content, $remove );
}
/**
* Extract the srcs from the post's [video] <source>s
*
* @since 3.6.0
*
* @param string $content A string which might contain video data.
* @param boolean $remove Whether to remove the found URL from the passed content.
* @return array A list of lists. Each item has a list of sources corresponding
* to a [video]'s primary src and specified fallbacks
*/
function get_content_video( &$content, $remove = false ) {
return get_content_media( 'video', $content, $remove );
}
/**
* Check the content blob for a <video>, <object>, <embed>, or <iframe>, in that order
* If no HTML tag is found, check the first line of the post for a URL
*
* @since 3.6.0
*
* @param string $content A string which might contain video data.
* @param boolean $remove Whether to remove the found URL from the passed content.
* @return array A list of found HTML video embeds and possibly a URL by itself
*/
function get_embedded_video( &$content, $remove = false ) {
return get_embedded_media( 'video', $content, $remove );
}
/**
* Audio embed handler callback.
*