fix(HLS): Fix use of EXT-X-MEDIA when not using Content Steering (#7166)

Fixes #7122

Author: avelad

lib/hls/hls_classes.js

@@ -120,9 +120,13 @@ shaka.hls.Tag = class {
   /**
    * Create the string key of the tag.
    *
+   * @param {boolean} keepAllAtributtes
    * @return {string}
    */
-  getTagKey() {
+  getTagKey(keepAllAtributtes) {
+    if (keepAllAtributtes) {
+      return this.toString();
+    }
     const attributesToSkip = new Set()
         .add('AUDIO')
         .add('VIDEO')

lib/hls/hls_parser.js

@@ -1375,7 +1375,7 @@ shaka.hls.HlsParser = class {
 
     const groupedTags = {};
     for (const tag of mediaTags) {
-      const key = tag.getTagKey();
+      const key = tag.getTagKey(!this.contentSteeringManager_);
       if (!groupedTags[key]) {
         groupedTags[key] = [tag];
       } else {
@@ -1456,7 +1456,7 @@ shaka.hls.HlsParser = class {
 
     const groupedTags = {};
     for (const tag of tags) {
-      const key = tag.getTagKey();
+      const key = tag.getTagKey(!this.contentSteeringManager_);
       if (!groupedTags[key]) {
         groupedTags[key] = [tag];
       } else {