1 /* Lzma2Enc.h -- LZMA2 Encoder
2 2017-07-27 : Igor Pavlov : Public domain */
3 
4 #ifndef __LZMA2_ENC_H
5 #define __LZMA2_ENC_H
6 
7 #include "LzmaEnc.h"
8 
9 EXTERN_C_BEGIN
10 
11 #define LZMA2_ENC_PROPS__BLOCK_SIZE__AUTO 0
12 #define LZMA2_ENC_PROPS__BLOCK_SIZE__SOLID ((UInt64)(Int64)-1)
13 
14 typedef struct
15 {
16   CLzmaEncProps lzmaProps;
17   UInt64 blockSize;
18   int numBlockThreads_Reduced;
19   int numBlockThreads_Max;
20   int numTotalThreads;
21 } CLzma2EncProps;
22 
23 void Lzma2EncProps_Init(CLzma2EncProps *p);
24 void Lzma2EncProps_Normalize(CLzma2EncProps *p);
25 
26 /* ---------- CLzmaEnc2Handle Interface ---------- */
27 
28 /* Lzma2Enc_* functions can return the following exit codes:
29 SRes:
30   SZ_OK           - OK
31   SZ_ERROR_MEM    - Memory allocation error
32   SZ_ERROR_PARAM  - Incorrect paramater in props
33   SZ_ERROR_WRITE  - ISeqOutStream write callback error
34   SZ_ERROR_OUTPUT_EOF - output buffer overflow - version with (Byte *) output
35   SZ_ERROR_PROGRESS - some break from progress callback
36   SZ_ERROR_THREAD - error in multithreading functions (only for Mt version)
37 */
38 
39 typedef void * CLzma2EncHandle;
40 
41 CLzma2EncHandle Lzma2Enc_Create(ISzAllocPtr alloc, ISzAllocPtr allocBig);
42 void Lzma2Enc_Destroy(CLzma2EncHandle p);
43 SRes Lzma2Enc_SetProps(CLzma2EncHandle p, const CLzma2EncProps *props);
44 void Lzma2Enc_SetDataSize(CLzma2EncHandle p, UInt64 expectedDataSiize);
45 Byte Lzma2Enc_WriteProperties(CLzma2EncHandle p);
46 SRes Lzma2Enc_Encode2(CLzma2EncHandle p,
47     ISeqOutStream *outStream,
48     Byte *outBuf, size_t *outBufSize,
49     ISeqInStream *inStream,
50     const Byte *inData, size_t inDataSize,
51     ICompressProgress *progress);
52 
53 EXTERN_C_END
54 
55 #endif
56