ddidderr/zstd-rs
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fixed zlib wrapper

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it was invoking ZSTD_initCStream_advanced() with pledgedSrcSize==0 and contentSizeFlag=1
which means "empty"
while the intention was to mean "unknown".

The contentSizeFlag==1 is new, it is a consequence of setting this value to 1 by default.

The solution selected here is to pass ZSTD_CONTENTSIZE_UNKNOWN to mean "unknown".
So contentSizeFlag remains set (it wasn't in previous versions).
This commit is contained in:
Yann Collet
2017-10-18 11:22:23 -07:00
parent 1ff8a8c109
commit ca1a9ebac5
3 changed files with 6 additions and 6 deletions
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lib/zstd.h
+1 -1
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@@ -613,7 +613,7 @@ ZSTDLIB_API ZSTD_compressionParameters ZSTD_getCParams(int compressionLevel, uns
/*! ZSTD_getParams() :
* same as ZSTD_getCParams(), but @return a full `ZSTD_parameters` object instead of sub-component `ZSTD_compressionParameters`.
* All fields of `ZSTD_frameParameters` are set to default (0) */
* All fields of `ZSTD_frameParameters` are set to default : contentSize=1, checksum=0, noDictID=0 */
ZSTDLIB_API ZSTD_parameters ZSTD_getParams(int compressionLevel, unsigned long long estimatedSrcSize, size_t dictSize);
/*! ZSTD_checkCParams() :