isLive() {
    if (this.manifest_ && !this.isRemotePlayback()) {
      return this.manifest_.presentationTimeline.isLive();
    }

    // For native HLS, the duration for live streams seems to be Infinity.
    if (this.video_ && (this.video_.src || this.isRemotePlayback())) {
      return this.video_.duration == Infinity;
    }

    return false;
  }
Get if the player is playing live content. If the player has not loaded
content, this will return <code>false</code>.

@return {boolean}
@export