Fixed srcSize=1

2016-09-14 00:16:07 +02:00
parent 838beb27d3
commit 64deef3bee
3 changed files with 3 additions and 3 deletions
@@ -168,7 +168,7 @@ ZSTD_compressionParameters ZSTD_adjustCParams(ZSTD_compressionParameters cPar, u
    {   U32 const minSrcSize = (srcSize==0) ? 500 : 0;
        U64 const rSize = srcSize + dictSize + minSrcSize;
        if (rSize < ((U64)1<<ZSTD_WINDOWLOG_MAX)) {
-            U32 const srcLog = ZSTD_highbit32((U32)(rSize)-1) + 1;
+            U32 const srcLog = MAX(4, ZSTD_highbit32((U32)(rSize)-1) + 1);
            if (cPar.windowLog > srcLog) cPar.windowLog = srcLog;
    }   }
    if (cPar.hashLog > cPar.windowLog) cPar.hashLog = cPar.windowLog;