Merge pull request #1380 from facebook/decodecorpus

fix decodecorpus incorrect frame generation
2018-10-22 11:57:12 -07:00
parent ed39c0e04b f181799082
commit c81236620f
4 changed files with 9 additions and 6 deletions
@@ -823,15 +823,14 @@ static size_t writeSequences(U32* seed, frame_t* frame, seqStore_t* seqStorePtr,
    else if (nbSeq < LONGNBSEQ) op[0] = (BYTE)((nbSeq>>8) + 0x80), op[1] = (BYTE)nbSeq, op+=2;
    else op[0]=0xFF, MEM_writeLE16(op+1, (U16)(nbSeq - LONGNBSEQ)), op+=3;

-    /* seqHead : flags for FSE encoding type */
-    seqHead = op++;
-
    if (nbSeq==0) {
        frame->data = op;
-
        return 0;
    }

+    /* seqHead : flags for FSE encoding type */
+    seqHead = op++;
+
    /* convert length/distances into codes */
    ZSTD_seqToCodes(seqStorePtr);