X-Git-Url: http://git.cyclocoop.org/?a=blobdiff_plain;f=includes%2Fmedia%2FPNG.php;h=e297fe1b45c89f0f7326a51080948c0d72cc0c81;hb=6da98ee84b844c9fba0d6c7fa76d8fc50bf2abbc;hp=c3f08325bc15887498452bbb394ac71c149553fa;hpb=6b1a173f07f1a04188735f4688ce6335da14c3b7;p=lhc%2Fweb%2Fwiklou.git

diff --git a/includes/media/PNG.php b/includes/media/PNG.php
index c3f08325bc..e297fe1b45 100644
--- a/includes/media/PNG.php
+++ b/includes/media/PNG.php
@@ -175,9 +175,29 @@ class PNGHandler extends BitmapHandler {
 		return $wgLang->commaList( $info );
 	}
 
+	/**
+	 * Return the duration of an APNG file.
+	 *
+	 * Shown in the &query=imageinfo&iiprop=size api query.
+	 *
+	 * @param $file File
+	 * @return float The duration of the file.
+	 */
+	public function getLength( $file ) {
+		$serMeta = $file->getMetadata();
+		MediaWiki\suppressWarnings();
+		$metadata = unserialize( $serMeta );
+		MediaWiki\restoreWarnings();
+
+		if ( !$metadata || !isset( $metadata['duration'] ) || !$metadata['duration'] ) {
+			return 0.0;
+		} else {
+			return (float)$metadata['duration'];
+		}
+	}
+
 	// PNGs should be easy to support, but it will need some sharpening applied
 	// and another user test to check if the perceived quality change is noticeable
-
 	public function supportsBucketing() {
 		return false;
 	}