update minimum threshold for max block size

2023-01-11 11:09:57 -08:00
parent fe08137d9a
commit 1fffcfe01d
3 changed files with 3 additions and 3 deletions
@@ -361,7 +361,6 @@ size_t ZSTD_CCtxParams_init(ZSTD_CCtx_params* cctxParams, int compressionLevel)
    ZSTD_memset(cctxParams, 0, sizeof(*cctxParams));
    cctxParams->compressionLevel = compressionLevel;
    cctxParams->fParams.contentSizeFlag = 1;
-    // cctxParams->maxBlockSize = ZSTD_BLOCKSIZE_MAX;
    return 0;
 }

@@ -617,7 +616,7 @@ ZSTD_bounds ZSTD_cParam_getBounds(ZSTD_cParameter param)
        return bounds;

    case ZSTD_c_maxBlockSize:
-        bounds.lowerBound = 1;
+        bounds.lowerBound = ZSTD_BLOCKSIZE_MAX_MIN;
        bounds.upperBound = ZSTD_BLOCKSIZE_MAX;
        return bounds;

@@ -141,6 +141,7 @@ ZSTDLIB_API const char* ZSTD_versionString(void);

 #define ZSTD_BLOCKSIZELOG_MAX  17
 #define ZSTD_BLOCKSIZE_MAX     (1<<ZSTD_BLOCKSIZELOG_MAX)
+#define ZSTD_BLOCKSIZE_MAX_MIN 1 << 10 /* The minimum valid max blocksize. Maximum blocksizes smaller than this make compressBound() inaccurate. */


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