Add --size-hint=# option

2019-08-19 11:38:49 -07:00
parent c9072ee674
commit dffbac5f89
8 changed files with 155 additions and 82 deletions
@@ -203,6 +203,9 @@ struct ZSTD_CCtx_params_s {
    size_t targetCBlockSize;   /* Tries to fit compressed block size to be around targetCBlockSize.
                                * No target when targetCBlockSize == 0.
                                * There is no guarantee on compressed block size */
+    size_t srcSizeHint;        /* User's best guess of source size.
+                                * Hint is not valid when srcSizeHint == 0.
+                                * There is no guarantee that hint is close to actual source size */

    ZSTD_dictAttachPref_e attachDictPref;
    ZSTD_literalCompressionMode_e literalCompressionMode;