message: Check this.track.hasH264ParameterSets is supported by track
diff: @@ -84,7 +84,7 @@ class Transponder
  //Singal track is attached
  this.track.attached();
  //If it has h264 properties
  - if (this.track.hasH264ParameterSets())
  + if (this.track.hasH264ParameterSets && this.track.hasH264ParameterSets())
  //Set it
  this.transponder.AppendH264ParameterSets(this.track.getH264ParameterSets());
  } else {
  