Revert de [95088] suite à discussions sur https://core.spip.net/issues/3692

L'initialisation de mediaelement.js est faite dynamiquement par SPIP et ça dépasse largement mon niveau de javascript.

.gitattributes

@@ -207,9 +207,7 @@ lib/mejs/controls.fw.png -text
 lib/mejs/controls.png -text
 lib/mejs/controls.svg -text
 lib/mejs/flashmediaelement-cdn.swf -text
-lib/mejs/flashmediaelement-debug.swf -text
 lib/mejs/flashmediaelement.swf -text
-lib/mejs/jumpforward.png -text
 lib/mejs/loading.gif -text
 lib/mejs/mediaelement-and-player.js -text
 lib/mejs/mediaelement-and-player.min.js -text
@@ -221,7 +219,6 @@ lib/mejs/mediaelementplayer.min.css -text
 lib/mejs/mediaelementplayer.min.js -text
 lib/mejs/mejs-skins.css -text
 lib/mejs/silverlightmediaelement.xap -text
-lib/mejs/skipback.png -text
 /medias_administrations.php -text
 /medias_autoriser.php -text
 /medias_fonctions.php -text

lib/mejs/mediaelementplayer.css

-.mejs-offscreen{
-/* Accessibility: hide screen reader texts (and prefer "top" for RTL languages). */
-	position: absolute !important;
-	top: -10000px;
-	left: -10000px;
-	overflow: hidden;
-	width: 1px;
-	height: 1px;
-}
-
 .mejs-container {
 	position: relative;
 	background: #000;
@@ -17,12 +7,10 @@
 	text-indent: 0;
 }
 
-.mejs-container:focus { 
-	outline: none; 
-}
-
 .me-plugin {
 	position: absolute;
+	height: auto;
+	width: auto;
 }
 
 .mejs-embed, .mejs-embed body {
@@ -199,7 +187,7 @@
 	background-image: url(controls.png);
 }
 
-	/* :focus for accessibility */
+/* :focus for accessibility */
 .mejs-controls .mejs-button button:focus {
 	outline: dotted 1px #999;
 }
@@ -212,7 +200,7 @@
 	display: block;
 	height: 17px;
 	width: auto;
-	padding: 10px 3px 0 3px ;
+	padding: 8px 3px 0 3px ;
 	overflow: hidden;
 	text-align: center;
 	-moz-box-sizing: content-box;
@@ -220,7 +208,7 @@
 	box-sizing: content-box;
 }
 
-.mejs-container .mejs-controls .mejs-time a {
+.mejs-container .mejs-controls .mejs-time span {
 	color: #fff;
 	font-size: 11px;
 	line-height: 12px;
@@ -252,7 +240,7 @@
 	padding-top: 5px;
 }
 
-.mejs-controls .mejs-time-rail span, .mejs-controls .mejs-time-rail a {
+.mejs-controls .mejs-time-rail span {
 	display: block;
 	position: absolute;
 	width: 180px;
@@ -487,13 +475,10 @@
 }
 
 /* horizontal version */
-.mejs-controls a.mejs-horizontal-volume-slider {
+.mejs-controls div.mejs-horizontal-volume-slider {
 	height: 26px;
-	width: 56px;
+	width: 60px;
 	position: relative;
-    display: block;
-    float: left;
-    vertical-align: middle;
 }
 
 .mejs-controls .mejs-horizontal-volume-slider .mejs-horizontal-volume-total {
@@ -902,7 +887,7 @@ div.mejs-speed-button {
 }
 
 .mejs-controls .mejs-speed-button .mejs-speed-selector {
-	display: none;
+	visibility: hidden;
 	position: absolute;
 	top: -100px;
 	left: -10px;
@@ -918,9 +903,8 @@ div.mejs-speed-button {
 	border-radius: 0;
 }
 
-
 .mejs-controls .mejs-speed-button:hover > .mejs-speed-selector {
-	display: block;
+	visibility: visible;
 }
 
 .mejs-controls .mejs-speed-button .mejs-speed-selector ul li label.mejs-speed-selected {
@@ -968,34 +952,3 @@ div.mejs-speed-button {
 	background-color: rgba(255,255,255,.4) !important;
 }
 /* End: Speed */
-
-/* Start: Jump Forward */
-
-.mejs-controls .mejs-button.mejs-jump-forward-button {
-	background: transparent url(jumpforward.png) no-repeat;
-	background-position: 3px 3px;
-}
-.mejs-controls .mejs-button.mejs-jump-forward-button button {
-	background: transparent;
-	font-size: 9px;
-	line-height: normal;
-	color: #ffffff;
-}
-
-/* End: Jump Forward */
-
-/* Start: Skip Back */
-
-.mejs-controls .mejs-button.mejs-skip-back-button {
-	background: transparent url(skipback.png) no-repeat;
-	background-position: 3px 3px;
-}
-.mejs-controls .mejs-button.mejs-skip-back-button button {
-	background: transparent;
-	font-size: 9px;
-	line-height: normal;
-	color: #ffffff;
-}
-
-/* End: Skip Back */
-

paquet.xml

 <paquet
 	prefix="medias"
 	categorie="multimedia"
-	version="2.12.0"
+	version="2.13.0"
 	etat="stable"
 	compatibilite="[3.2.0-dev;]"
 	logo="prive/themes/spip/images/portfolio-32.png"