static parseTFDTInaccurate(reader, version) {
    if (version == 1) {
      const high = reader.readUint32();
      const low = reader.readUint32();
      return {
        baseMediaDecodeTime: (high * Math.pow(2, 32)) + low,
      };
    } else {
      return {
        baseMediaDecodeTime: reader.readUint32(),
      };
    }
  }
Parses a TFDT Box, with a loss of precision beyond 53 bits.
Use only when exact integers are not required, e.g. when
dividing by the timescale.

@param {!shaka.util.DataViewReader} reader
@param {number} version
@return {!shaka.util.ParsedTFDTBox}