Contains classes for data compression and decompression.
More...
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Bzip2CompressionParameter | parameter |
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Bzip2CompressionParameter | parameter |
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enum | CompressionLevel {
defaultLevel = -1,
level0 = 0,
level1,
level2,
level3,
level4,
level5,
level6,
level7,
level8,
level9
} |
| Compression levels More...
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enum | CompressionMethod { zlib,
lzo,
rle,
bzip2
} |
| Compression methods More...
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typedef services::Collection
< services::SharedPtr
< DataBlock > > | DataBlockCollection |
| Collection of DataBlock-type elements.
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Enumerator |
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defaultLevel |
Default compression level
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level0 |
Minimum compression level, maximum speed
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level1 |
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level2 |
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level3 |
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level4 |
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level5 |
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level6 |
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level7 |
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level8 |
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level9 |
Maximum compression level, minimum speed
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Enumerator |
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zlib |
DEFLATE compression method with a ZLIB block header or a simple GZIP block header
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lzo |
LZO1X compatible compression method
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rle |
Run-Length Encoding method
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bzip2 |
BZIP2 compression method
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void run |
( |
byte * |
outBlock, |
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size_t |
size, |
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size_t |
offset |
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) |
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Performs bzip2 compression of a data block
- Parameters
-
[out] | outBlock | Pointer to the data block where compression results are stored. Must be at least size+offset bytes |
[in] | size | Number of bytes available in outBlock |
[in] | offset | Offset in bytes, the starting position for compression in outBlock |
Performs bzip2 compression of a data block
- Parameters
-
[out] | outBlock | Reference to the data block where compression results are stored |
void run |
( |
byte * |
outBlock, |
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size_t |
size, |
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size_t |
offset |
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) |
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Performs bzip2 decompression of a data block
- Parameters
-
[out] | outBlock | Pointer to the data block where decompression results are stored. Must be at least size+offset bytes |
[in] | size | Number of bytes available in outBlock |
[in] | offset | Offset in bytes, the starting position for decompression in outBlock |
Performs bzip2 decompression of a data block
- Parameters
-
[out] | outBlock | Reference to the data block where decompression results are stored |
void setInputDataBlock |
( |
byte * |
inBlock, |
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size_t |
size, |
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size_t |
offset |
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) |
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Associates an input data block with a compressor
- Parameters
-
[in] | inBlock | Pointer to the data block to compress. Must be at least size+offset bytes |
[in] | size | Number of bytes to compress in inBlock |
[in] | offset | Offset in bytes, the starting position for compression in inBlock |
void setInputDataBlock |
( |
DataBlock & |
inBlock | ) |
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inline |
Associates an input data block with a compressor
- Parameters
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[in] | inBlock | Reference to the data block to compress |
void setInputDataBlock |
( |
byte * |
inBlock, |
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|
size_t |
size, |
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|
size_t |
offset |
|
) |
| |
Associates an input data block with a decompressor
- Parameters
-
[in] | inBlock | Pointer to the data block to decompress. Must be at least size+offset bytes |
[in] | size | Number of bytes to decompress in inBlock |
[in] | offset | Offset in bytes, the starting position for decompression in inBlock |
void setInputDataBlock |
( |
DataBlock & |
inBlock | ) |
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inline |
Associates an input data block with a decompressor
- Parameters
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[in] | inBlock | Reference to the data block to decompress |
Bzip2CompressionParameter parameter |
Bzip2 compression parameters structure
Bzip2CompressionParameter parameter |
Bzip2 compression parameters structure