diff options
Diffstat (limited to 'lib/lz4frame.h')
| -rw-r--r-- | lib/lz4frame.h | 9 |
1 files changed, 5 insertions, 4 deletions
diff --git a/lib/lz4frame.h b/lib/lz4frame.h index bd715bd..fb434ff 100644 --- a/lib/lz4frame.h +++ b/lib/lz4frame.h @@ -173,13 +173,14 @@ typedef struct { /*! LZ4F_preferences_t : * makes it possible to supply detailed compression parameters to the stream interface. - * It's not required to set all fields, as long as the structure was initially memset() to zero. + * Structure is presumed initially memset() to zero, representing default settings. * All reserved fields must be set to zero. */ typedef struct { LZ4F_frameInfo_t frameInfo; - int compressionLevel; /* 0: default (fast mode); values > LZ4HC_CLEVEL_MAX count as LZ4HC_CLEVEL_MAX; values < 0 trigger "fast acceleration" */ - unsigned autoFlush; /* 1 == always flush, to reduce usage of internal buffers */ - unsigned reserved[4]; /* must be zero for forward compatibility */ + int compressionLevel; /* 0: default (fast mode); values > LZ4HC_CLEVEL_MAX count as LZ4HC_CLEVEL_MAX; values < 0 trigger "fast acceleration" */ + unsigned autoFlush; /* 1: always flush, to reduce usage of internal buffers */ + unsigned favorDecSpeed; /* 1: parser favors decompression speed vs compression ratio. Only works for high compression modes (>= LZ4LZ4HC_CLEVEL_OPT_MIN) */ /* >= v1.8.2 */ + unsigned reserved[3]; /* must be zero for forward compatibility */ } LZ4F_preferences_t; LZ4FLIB_API int LZ4F_compressionLevel_max(void); |