fastQualityChange_() {
    let media = this.selectPlaylist();

    if (media !== this.masterPlaylistLoader_.media()) {
      this.masterPlaylistLoader_.media(media);
      this.mainSegmentLoader_.sourceUpdater_.remove(this.tech_.currentTime() + 5,
                                                    Infinity);
    }
  }
/**
   * Re-tune playback quality level for the current player
   * conditions. This method may perform destructive actions, like
   * removing already buffered content, to readjust the currently
   * active playlist quickly.
   *
   * @private
   */
Re-tune playback quality level for the current player
conditions. This method may perform destructive actions, like
removing already buffered content, to readjust the currently
active playlist quickly.

@private
Re - tune playback quality level for the current player conditions . This method may perform destructive actions like removing already buffered content to readjust the currently active playlist quickly . @private
fastQualityChange_() {
    let media = this.selectPlaylist();
    if (media !== this.masterPlaylistLoader_.media()) {
      this.masterPlaylistLoader_.media(media);
      this.mainSegmentLoader_.sourceUpdater_.remove(this.tech_.currentTime() + 5,
                                                    Infinity);
    }
  }
fastQualityChange_ ( ) { let media = this . selectPlaylist ( ) ; if ( media !== this . masterPlaylistLoader_ . media ( ) ) { this . masterPlaylistLoader_ . media ( media ) ; this . mainSegmentLoader_ . sourceUpdater_ . remove ( this . tech_ . currentTime ( ) + 5 , Infinity ) ; } }
Re-tune playback quality level for the current player
 conditions.
Re - tune playback quality level for the current player conditions .