fix(tpc) disable ulpfec on chrome 96 (#1816)

* fix(tpc) disable ulpfec on chrome 96

* ref(tpc) add comment

modules/RTC/TraceablePeerConnection.js

@@ -2824,6 +2824,13 @@ TraceablePeerConnection.prototype._createOfferOrAnswer = function(
                     .filter(caps => caps.mimeType.toLowerCase() !== `${MediaType.VIDEO}/${mimeType}`);
             }
 
+            // Disable ulpfec on Google Chrome 96 because
+            // https://bugs.chromium.org/p/chromium/issues/detail?id=982793
+            if (browser.isChromiumBased() && browser.isVersionEqualTo('96')) {
+                capabilities = capabilities
+                    .filter(caps => caps.mimeType.toLowerCase() !== `${MediaType.VIDEO}/${CodecMimeType.ULPFEC}`);
+            }
+
             try {
                 transceiver.setCodecPreferences(capabilities);
             } catch (err) {

service/RTC/CodecMimeType.js

@@ -1,6 +1,6 @@
 /**
  * Enumeration of the codec mime types
- * @type {{H264: string, OPUS: string, VP8: string, VP9: string}}
+ * @type {{H264: string, OPUS: string, ULPFEC: string, VP8: string, VP9: string}}
  */
 const CodecMimeType = {
     /**
@@ -13,6 +13,11 @@ const CodecMimeType = {
      */
     OPUS: 'opus',
 
+    /**
+     * The ulpfec codec mime type.
+     */
+    ULPFEC: 'ulpfec',
+
     /**
      * The vp8 codec mime type.
      */