handleC2_(dtvccPacket, controlCode) {
    // As of the CEA-708-E spec there are no commands on the C2 table, but if
    // seen, then the appropriate number of bytes must be skipped as per spec.
    if (controlCode >= 0x08 && controlCode <= 0x0f) {
      dtvccPacket.skip(1);
    } else if (controlCode >= 0x10 && controlCode <= 0x17) {
      dtvccPacket.skip(2);
    } else if (controlCode >= 0x18 && controlCode <= 0x1f) {
      dtvccPacket.skip(3);
    }
  }
Handles C2 group data.
@param {!shaka.cea.DtvccPacket} dtvccPacket
@param {number} controlCode
@private