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Add functions for generating metadata for video and audio, using the

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ID3 library. Also allows themes/plugins to add thumbnail support
to these media types. Think stuff like album art, movie covers, and
video freeze-frames.

props wonderboymusic. fixes #23673

git-svn-id: https://develop.svn.wordpress.org/trunk@23766 602fd350-edb4-49c9-b593-d223f7449a82
This commit is contained in:
Mark Jaquith
2013-03-21 04:55:42 +00:00
parent fa6afd2a63
commit 53ea4e0566
19 changed files with 20712 additions and 2 deletions
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34
wp-admin/includes/image.php
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@@ -73,6 +73,7 @@ function wp_generate_attachment_metadata( $attachment_id, $file ) {
$attachment = get_post( $attachment_id );
$metadata = array();
$support = false;
if ( preg_match('!^image/!', get_post_mime_type( $attachment )) && file_is_displayable_image($file) ) {
$imagesize = getimagesize( $file );
$metadata['width'] = $imagesize[0];
@@ -117,8 +118,41 @@ function wp_generate_attachment_metadata( $attachment_id, $file ) {
if ( $image_meta )
$metadata['image_meta'] = $image_meta;
} elseif ( preg_match( '#^video/#', get_post_mime_type( $attachment ) ) ) {
$metadata = wp_read_video_metadata( $file );
$support = current_theme_supports( 'post-thumbnails', 'attachment:video' ) && post_type_supports( 'attachment:video', 'thumbnail' );
} elseif ( preg_match( '#^audio/#', get_post_mime_type( $attachment ) ) ) {
$metadata = wp_read_audio_metadata( $file );
$support = current_theme_supports( 'post-thumbnails', 'attachment:audio' ) && post_type_supports( 'attachment:audio', 'thumbnail' );
}
if ( $support && ! empty( $metadata['image']['data'] ) ) {
$ext = '.jpg';
switch ( $metadata['image']['mime'] ) {
case 'image/gif':
$ext = '.gif';
break;
case 'image/png':
$ext = '.png';
break;
}
$basename = str_replace( '.', '-', basename( $file ) ) . '-image' . $ext;
$uploaded = wp_upload_bits( $basename, '', $metadata['image']['data'] );
if ( false === $uploaded['error'] ) {
$attachment = array(
'post_mime_type' => $metadata['image']['mime'],
'post_type' => 'attachment',
'post_content' => '',
);
$sub_attachment_id = wp_insert_attachment( $attachment, $uploaded['file'] );
$attach_data = wp_generate_attachment_metadata( $sub_attachment_id, $uploaded['file'] );
wp_update_attachment_metadata( $sub_attachment_id, $attach_data );
update_post_meta( $attachment_id, '_thumbnail_id', $sub_attachment_id );
}
}
// remove the blob of binary data from the array
unset( $metadata['image']['data'] );
return apply_filters( 'wp_generate_attachment_metadata', $metadata, $attachment_id );
}