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* bitcomp: Remove the t4 decoding from libosmocoreHolger Hans Peter Freyther2016-11-101-128/+0
| | | | | | | | | | | | As outlined by mail on the 13th of July the tree based approach to decoding in the PCU is faster by order of magnitude. Instead of having a slow implementation in the library and a quick one in the PCU, let's only have a quick one in the PCU and at some point in the future move it to libosmocore. Execute the plan and remove t4_decode. Change-Id: I021424444625a097560d086c217c81eac4a5ee44
* Update doxygen annotations in libosmocoreHarald Welte2016-05-051-7/+9
| | | | | This adds and improves doxygen API descriptions all over libosmocore, reducing the 'white spots' that don't have any documentation.
* Add T4 bit map compression routinesMax2016-02-181-0/+480
Add bit map encoder and decoder functions: decoder is fully functional while encoder is good enough for testing - no backtracking to find the best possible compression is implemented. If somebody is willing to implement MS side of EDGE than this has to be expanded. Add corresponding tests. N. B: the encoding is implemented according to ETSI TS 44.060 which is slightly different from T4 used for fax according to CCITT G31D (RFC 804). Ticket: OW#2407 Sponsored-by: On-Waves ehf Signed-off-by: Max <msuraev@sysmocom.de>