public static Compression guessCompressionMethod(byte [] bits){
AutoBuffer ab = new AutoBuffer(bits);
// Look for ZIP magic
if( bits.length > ZipFile.LOCHDR && ab.get4(0) == ZipFile.LOCSIG )
return Compression.ZIP;
if( bits.length > 2 && ab.get2(0) == GZIPInputStream.GZIP_MAGIC )
return Compression.GZIP;
return Compression.NONE;
}
