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ef790b5209
- Minor speed optimization for LZMA2 (xz and 7z) multi-threading compression.
7-Zip now uses additional memory buffers for multi-block LZMA2 compression.
CPU utilization was slightly improved.
- 7-zip now creates multi-block xz archives by default. Block size can be
specified with -ms[Size]{m|g} switch.
- xz decoder now can unpack random block from multi-block xz archives. 7-Zip
File Manager now can open nested multi-block xz archives (for example,
image.iso.xz) without full unpacking of xz archive.
- 7-Zip now can create zip archives from stdin to stdout.
- 7-Zip command line: @listfile now doesn't work after -- switch. Use
-i@listfile before -- switch instead.
fixed bugs:
- 7-Zip could add unrequired alternate file streams to WIM archives, for
commands that contain filename wildcards and -sns switch.
- 7-Zip 17.00 beta crashed for commands that write anti-item to 7z archive.
- 7-Zip 17.00 beta ignored "Use large memory pages" option.
56 lines
1.6 KiB
C
56 lines
1.6 KiB
C
/* Lzma2Enc.h -- LZMA2 Encoder
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2017-07-27 : Igor Pavlov : Public domain */
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#ifndef __LZMA2_ENC_H
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#define __LZMA2_ENC_H
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#include "LzmaEnc.h"
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EXTERN_C_BEGIN
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#define LZMA2_ENC_PROPS__BLOCK_SIZE__AUTO 0
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#define LZMA2_ENC_PROPS__BLOCK_SIZE__SOLID ((UInt64)(Int64)-1)
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typedef struct
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{
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CLzmaEncProps lzmaProps;
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UInt64 blockSize;
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int numBlockThreads_Reduced;
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int numBlockThreads_Max;
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int numTotalThreads;
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} CLzma2EncProps;
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void Lzma2EncProps_Init(CLzma2EncProps *p);
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void Lzma2EncProps_Normalize(CLzma2EncProps *p);
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/* ---------- CLzmaEnc2Handle Interface ---------- */
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/* Lzma2Enc_* functions can return the following exit codes:
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SRes:
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SZ_OK - OK
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SZ_ERROR_MEM - Memory allocation error
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SZ_ERROR_PARAM - Incorrect paramater in props
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SZ_ERROR_WRITE - ISeqOutStream write callback error
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SZ_ERROR_OUTPUT_EOF - output buffer overflow - version with (Byte *) output
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SZ_ERROR_PROGRESS - some break from progress callback
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SZ_ERROR_THREAD - error in multithreading functions (only for Mt version)
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*/
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typedef void * CLzma2EncHandle;
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CLzma2EncHandle Lzma2Enc_Create(ISzAllocPtr alloc, ISzAllocPtr allocBig);
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void Lzma2Enc_Destroy(CLzma2EncHandle p);
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SRes Lzma2Enc_SetProps(CLzma2EncHandle p, const CLzma2EncProps *props);
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void Lzma2Enc_SetDataSize(CLzma2EncHandle p, UInt64 expectedDataSiize);
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Byte Lzma2Enc_WriteProperties(CLzma2EncHandle p);
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SRes Lzma2Enc_Encode2(CLzma2EncHandle p,
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ISeqOutStream *outStream,
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Byte *outBuf, size_t *outBufSize,
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ISeqInStream *inStream,
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const Byte *inData, size_t inDataSize,
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ICompressProgress *progress);
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EXTERN_C_END
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#endif
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