diff options
Diffstat (limited to 'lib/lz4hc.h')
| -rw-r--r-- | lib/lz4hc.h | 23 |
1 files changed, 16 insertions, 7 deletions
diff --git a/lib/lz4hc.h b/lib/lz4hc.h index b63c825..66d5636 100644 --- a/lib/lz4hc.h +++ b/lib/lz4hc.h @@ -161,7 +161,7 @@ typedef struct typedef struct { unsigned int hashTable[LZ4HC_HASHTABLESIZE]; - unsigned short chainTable[LZ4HC_MAXD]; + unsigned short chainTable[LZ4HC_MAXD]; const unsigned char* end; /* next block here to continue on current prefix */ const unsigned char* base; /* All index relative to this position */ const unsigned char* dictBase; /* alternate base for extDict */ @@ -245,25 +245,34 @@ LZ4LIB_API LZ4_DEPRECATED("use LZ4_resetStreamHC() instead") int LZ4_resetStr * or 0 if compression fails. * `srcSizePtr` : value will be updated to indicate how much bytes were read from `src` */ -LZ4LIB_API int LZ4_compress_HC_destSize(void* LZ4HC_Data, +int LZ4_compress_HC_destSize(void* LZ4HC_Data, const char* src, char* dst, int* srcSizePtr, int targetDstSize, int compressionLevel); -/*! LZ4_compress_HC_continue_destSize() : +/*! LZ4_compress_HC_continue_destSize() : v1.8.0 (experimental) * Similar as LZ4_compress_HC_continue(), * but will read a variable nb of bytes from `src` * to fit into `targetDstSize` budget. * Result is provided in 2 parts : * @return : the number of bytes written into 'dst' * or 0 if compression fails. - * `srcSizePtr` : value will be updated to indicate how much bytes were read from `src` - * Important : due to limitations, this prototype only works well up to cLevel < LZ4HC_CLEVEL_OPT_MIN - * beyond that level, compression performance will be much reduced due to internal incompatibilities + * `srcSizePtr` : value will be updated to indicate how much bytes were read from `src`. + * Important : due to limitations, this prototype only works well up to cLevel < LZ4HC_CLEVEL_OPT_MIN + * beyond that level, compression performance will be much reduced due to internal incompatibilities */ -LZ4LIB_API int LZ4_compress_HC_continue_destSize(LZ4_streamHC_t* LZ4_streamHCPtr, +int LZ4_compress_HC_continue_destSize(LZ4_streamHC_t* LZ4_streamHCPtr, const char* src, char* dst, int* srcSizePtr, int targetDstSize); +/*! LZ4_setCompressionLevel() : v1.8.0 (experimental) + * It's possible to change compression level after LZ4_resetStreamHC(), between 2 invocations of LZ4_compress_HC_continue*(), + * but that requires to stay in the same mode (aka 1-10 or 11-12). + * This function ensures this condition. + */ +void LZ4_setCompressionLevel(LZ4_streamHC_t* LZ4_streamHCPtr, int compressionLevel); + + + #endif /* LZ4_HC_SLO_098092834 */ #endif /* LZ4_HC_STATIC_LINKING_ONLY */ |