setupLcevc_(config, isDualTrack) {
    if (isDualTrack || config.lcevc.enabled) {
      this.closeLcevcDec_();
      this.createLcevcDec_(config.lcevc, isDualTrack);
    } else {
      this.closeLcevcDec_();
    }
  }
Setup shaka.lcevc.Dec object
@param {?shaka.extern.PlayerConfiguration} config
@param {boolean} isDualTrack
@private