[doofoo24]

there is in russian using google translate to english :
General options:
-slp - includes an attempt to allocate large pages of memory to increase the speed of packaging.
Options that affect any data:
-d - specifies the dictionary for the package. Example: -d128m. The default is -d64m;
-fb - sets the maximum match size for fast parsing in the parser. Similar to the corresponding option in lzma, but with the maximum possible value of 337. Default is -fb128;
-mc - specifies the maximum number of search cycles. Similar to the corresponding option in lzma. The default is -mc1024.
-ep - includes contextual modeling for the entire range of coincidence distances. In my tests for dds gives a permanent win. The default is -ep1.
Options that affect all data except dds:
-lc - sets the size of the context of the previous character to encode literals. It affects only normal data (all except dds and dds raw). Similar to the corresponding option in lzma. The default is -lc8.
-lp - sets the size of the context of the current position for encoding literals. It affects only normal data (all except dds and dds raw). Similar to the corresponding option in lzma. The pb parameter is always set to -lp. The default is -lp4.
Options that affect only dxt dds:
-dc - sets the size of the context of the previous character to encode a literal that was not accepted by the parser as a "dxt literal". It only affects the encoding of dxt dds. Possible values: 0..8. The default is -dc8.
-em - Enable or disable the encoding of special literals immediately after the repetition. It only affects the encoding of dds. Possible values: 0..1. The default is -em1.
-cu - Specifies the type of update of the literals statistics. It only affects the encoding of dxt dds. The possible values ​​are: 0..3. Which compression mode packs more efficiently depends on the data. The unpacking time increases with increasing value -cu (At -cu0, the unpacking time is approximately equal to the time lzma, at -cu3 - 2 times longer). The default is -cu0.
Options that affect only raw dds:
-pl - sets the model for the raw image. The possible values ​​are: 0..3. 0 - disables detection of dds raw. 2 - the data is preprocessed, which consists in the usual subtraction of the current pixel value and the previous one, 3 is also preprocessing, but the value calculated by the MED predictor is subtracted from the value of the current pixel. By default -pl1;
-pc - Specifies the size of the context for encoding the literal. It only affects raw dds coding. The possible values ​​are: 0..8. The default is -pc8.

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