getStreamType_() {
    const isLive = this.playerInterface_.isLive();
    if (isLive) {
      return shaka.util.CmcdManager.StreamType.LIVE;
    } else {
      return shaka.util.CmcdManager.StreamType.VOD;
    }
  }
Get the stream type

@return {shaka.util.CmcdManager.StreamType}
@private