zstd/common/fse.h

68 3. save normalized counters to memory buffer using writeNCount()
70 5. encode the data stream using encoding table 'CTable'
75 3. decode the data stream using decoding table 'DTable'
78 For example, it's possible to compress several blocks using the same 'CTable',
79 or to save and provide normalized distribution using external method.
86 …  It saves CPU time, by using smaller tables, while preserving or even improving compression ratio.
100               or an errorCode, which can be tested using FSE_isError() */
112               or an errorCode, which can be tested using FSE_isError(). */
122     Builds `ct`, which must be already allocated, using FSE_createCTable().
123     @return : 0, or an errorCode, which can be tested using FSE_isError() */
127     Compress `src` using `ct` into `dst` which must be already allocated.
130               or an errorCode, which can be tested using FSE_isError() */
142 If there is an error, the function will return an ErrorCode (which can be tested using FSE_isError(…
156 …d tableLog value), the function will return an ErrorCode (which can be tested using FSE_isError()).
158 'normalizedCounter' can be saved in a compact manner to a memory area using FSE_writeNCount().
162 If there is an error, the function will return an ErrorCode (which can be tested using FSE_isError(…
165 The space required by 'CTable' must be already allocated, using FSE_createCTable().
167 If there is an error, both functions will return an ErrorCode (which can be tested using FSE_isErro…
173 If there is an error, the function will return an ErrorCode (which can be tested using FSE_isError(…
182               or an errorCode, which can be tested using FSE_isError().
205 This can be performed by FSE_readNCount() if it was saved using FSE_writeNCount().
212 If there is an error, the function will return an error code, which can be tested using FSE_isError…
216 The space required by 'FSE_DTable' must be already allocated using FSE_createDTable().
217 If there is an error, the function will return an error code, which can be tested using FSE_isError…
222 If there is an error, the function will return an error code, which can be tested using FSE_isError…
240 … to statically allocate FSE CTable/DTable as a table of FSE_CTable/FSE_DTable using below macros */
260  * Same as FSE_buildCTable(), but using an externally allocated scratch buffer (`workSpace`).
271 /*< Same as FSE_buildDTable(), using an externally allocated `workspace` produced with `FSE_BUILD_D…
276 /*< same as FSE_decompress(), using an externally allocated `workSpace` produced with `FSE_DECOMPRE…
323 Note that BIT_initCStream() can produce an error code, so its result should be tested, using FSE_is…
344 If there is an error, it returns an errorCode (which can be tested using FSE_isError()).
403 After each decoded symbol, check if DStream is fully consumed using this simple test :
483 …* Approximate symbol cost, as fractional value, using fixed-point format (accuracyLog fractional b…