rosbag::BZ2Stream Class Reference

#include <stream.h>

Inheritance diagram for rosbag::BZ2Stream:

[legend]

List of all members.

Public Member Functions
	BZ2Stream (ChunkedFile *file)
void	decompress (uint8_t *dest, unsigned int dest_len, uint8_t *source, unsigned int source_len)
CompressionType	getCompressionType () const
void	read (void *ptr, size_t size)
void	startRead ()
void	startWrite ()
void	stopRead ()
void	stopWrite ()
void	write (void *ptr, size_t size)
Private Attributes
int	block_size_100k_
	compression block size (1-9; 9 default). 9 is best compression, most memory
int	bzerror_
	last error from bzlib
BZFILE *	bzfile_
	bzlib compressed file stream
int	verbosity_
	level of debugging output (0-4; 0 default). 0 is silent, 4 is max verbose debugging output
int	work_factor_
	compression behavior for worst case, highly repetitive data (0-250; 30 default)

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Detailed Description

BZ2Stream uses libbzip2 (http://www.bzip.org) for reading/writing compressed data in the BZ2 format.

Definition at line 124 of file stream.h.

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Constructor & Destructor Documentation

rosbag::BZ2Stream::BZ2Stream

(

ChunkedFile *

file

)

Definition at line 45 of file bz2_stream.cpp.

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Member Function Documentation

void rosbag::BZ2Stream::decompress	(	uint8_t *	dest,
		unsigned int	dest_len,
		uint8_t *	source,
		unsigned int	source_len
	)			[virtual]

Implements rosbag::Stream.

Definition at line 143 of file bz2_stream.cpp.

CompressionType rosbag::BZ2Stream::getCompressionType

(

)

const [virtual]

Implements rosbag::Stream.

Definition at line 54 of file bz2_stream.cpp.

void rosbag::BZ2Stream::read	(	void *	ptr,
		size_t	size
	)			[virtual]

Implements rosbag::Stream.

Definition at line 109 of file bz2_stream.cpp.

void rosbag::BZ2Stream::startRead

(

)

[virtual]

Reimplemented from rosbag::Stream.

Definition at line 95 of file bz2_stream.cpp.

void rosbag::BZ2Stream::startWrite

(

)

[virtual]

Reimplemented from rosbag::Stream.

Definition at line 58 of file bz2_stream.cpp.

void rosbag::BZ2Stream::stopRead

(

)

[virtual]

Reimplemented from rosbag::Stream.

Definition at line 135 of file bz2_stream.cpp.

void rosbag::BZ2Stream::stopWrite

(

)

[virtual]

Reimplemented from rosbag::Stream.

Definition at line 82 of file bz2_stream.cpp.

void rosbag::BZ2Stream::write	(	void *	ptr,
		size_t	size
	)			[virtual]

Implements rosbag::Stream.

Definition at line 72 of file bz2_stream.cpp.

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Member Data Documentation

int rosbag::BZ2Stream::block_size_100k_ [private]

compression block size (1-9; 9 default). 9 is best compression, most memory

Definition at line 143 of file stream.h.

int rosbag::BZ2Stream::bzerror_ [private]

last error from bzlib

Definition at line 147 of file stream.h.

BZFILE* rosbag::BZ2Stream::bzfile_ [private]

bzlib compressed file stream

Definition at line 146 of file stream.h.

int rosbag::BZ2Stream::verbosity_ [private]

level of debugging output (0-4; 0 default). 0 is silent, 4 is max verbose debugging output

Definition at line 142 of file stream.h.

int rosbag::BZ2Stream::work_factor_ [private]

compression behavior for worst case, highly repetitive data (0-250; 30 default)

Definition at line 144 of file stream.h.

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The documentation for this class was generated from the following files:

• stream.h
• bz2_stream.cpp