* Writes an lzop-compatible header to the OutputStream provided.
*/
protected void writeLzopHeader() throws IOException {
DataOutputBuffer dob = new DataOutputBuffer();
try {
dob.writeShort(LzopConstants.LZOP_VERSION);
dob.writeShort(LzoVersion.LZO_LIBRARY_VERSION);
dob.writeShort(LzopConstants.LZOP_COMPAT_VERSION);
switch (getAlgorithm()) {
case LZO1X:
// case LZO1X_1: