ddidderr/zstd-rs
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support for skippable frames

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This commit is contained in:
inikep
2016-05-31 12:43:46 +02:00
parent d57b418214
commit f772bf54a5
6 changed files with 66 additions and 12 deletions
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lib/common/zstd_internal.h
+1 -1
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@@ -252,6 +252,6 @@ typedef struct {
const seqStore_t* ZSTD_getSeqStore(const ZSTD_CCtx* ctx);
void ZSTD_seqToCodes(const seqStore_t* seqStorePtr, size_t const nbSeq);
int ZSTD_isSkipFrame(ZSTD_DCtx* dctx);
#endif /* ZSTD_CCOMMON_H_MODULE */
lib/common/zstd_static.h
+3 -1
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@@ -51,7 +51,8 @@ extern "C" {
/*-*************************************
* Constants
***************************************/
#define ZSTD_MAGICNUMBER 0xFD2FB526 /* v0.6 */
#define ZSTD_MAGICNUMBER 0xFD2FB526 /* v0.6 */
#define ZSTD_MAGIC_SKIPPABLE_START 0x184D2A50U
/*-*************************************
@@ -196,6 +197,7 @@ typedef struct { U64 frameContentSize; U32 windowLog; } ZSTD_frameParams;
#define ZSTD_FRAMEHEADERSIZE_MAX 13 /* for static allocation */
static const size_t ZSTD_frameHeaderSize_min = 5;
static const size_t ZSTD_frameHeaderSize_max = ZSTD_FRAMEHEADERSIZE_MAX;
static const size_t ZSTD_skippableHeaderSize = 8; /* magic number + skippable frame length */
ZSTDLIB_API size_t ZSTD_getFrameParams(ZSTD_frameParams* fparamsPtr, const void* src, size_t srcSize); /**< doesn't consume input */
ZSTDLIB_API size_t ZSTD_decompressBegin(ZSTD_DCtx* dctx);