Compression using the "zip" algorithm and from/to gzip (gz) files.
mrpt_base_grp
Functions | |
void | compress (void *inData, size_t inDataSize, std::vector< unsigned char > &outData) |
Compress an array of bytes into another one. More... | |
void | compress (const std::vector< unsigned char > &inData, std::vector< unsigned char > &outData) |
Compress an array of bytes into another one. More... | |
void | compress (void *inData, size_t inDataSize, mrpt::utils::CStream &out) |
Compress an array of bytes and write the result into a stream. More... | |
void | compress (const std::vector< unsigned char > &inData, mrpt::utils::CStream &out) |
Compress an array of bytes and write the result into a stream. More... | |
void | decompress (void *inData, size_t inDataSize, std::vector< unsigned char > &outData, size_t outDataEstimatedSize) |
Decompress an array of bytes into another one. More... | |
void | decompress (void *inData, size_t inDataSize, void *outData, size_t outDataBufferSize, size_t &outDataActualSize) |
Decompress an array of bytes into another one. More... | |
void | decompress (mrpt::utils::CStream &inStream, size_t inDataSize, void *outData, size_t outDataBufferSize, size_t &outDataActualSize) |
Decompress an array of bytes into another one. More... | |
bool | decompress_gz_file (const std::string &file_path, vector_byte &buffer) |
Decompress a gzip file (xxxx.gz) into a memory buffer. More... | |
bool | compress_gz_file (const std::string &file_path, const vector_byte &buffer, const int compress_level=9) |
Compress a memory buffer into a gzip file (xxxx.gz). More... | |
bool | compress_gz_data_block (const vector_byte &in_data, vector_byte &out_gz_data, const int compress_level=9) |
Compress a memory buffer in gz-file format and return it as a block a memory. More... | |
bool | decompress_gz_data_block (const vector_byte &in_gz_data, vector_byte &out_data) |
Decompress an array of bytes storing a gz-compressed stream of data into a memory buffer. More... | |
void mrpt::compress::zip::compress | ( | void * | inData, |
size_t | inDataSize, | ||
std::vector< unsigned char > & | outData | ||
) |
Compress an array of bytes into another one.
Definition at line 36 of file zip.cpp.
References ASSERT_, MRPT_END_WITH_CLEAN_UP, MRPT_START, and Z_OK.
Referenced by compress(), and mrpt::utils::CImage::writeToStream().
void mrpt::compress::zip::compress | ( | const std::vector< unsigned char > & | inData, |
std::vector< unsigned char > & | outData | ||
) |
Compress an array of bytes into another one.
Definition at line 59 of file zip.cpp.
References ASSERT_, compress(), MRPT_END_WITH_CLEAN_UP, MRPT_START, and Z_OK.
void mrpt::compress::zip::compress | ( | void * | inData, |
size_t | inDataSize, | ||
mrpt::utils::CStream & | out | ||
) |
Compress an array of bytes and write the result into a stream.
Definition at line 82 of file zip.cpp.
References ASSERT_, compress(), MRPT_END_WITH_CLEAN_UP, MRPT_START, mrpt::utils::CStream::WriteBuffer(), and Z_OK.
void mrpt::compress::zip::compress | ( | const std::vector< unsigned char > & | inData, |
mrpt::utils::CStream & | out | ||
) |
Compress an array of bytes and write the result into a stream.
Definition at line 110 of file zip.cpp.
References ASSERT_, compress(), MRPT_END_WITH_CLEAN_UP, MRPT_START, mrpt::utils::CStream::WriteBuffer(), and Z_OK.
bool mrpt::compress::zip::compress_gz_data_block | ( | const vector_byte & | in_data, |
vector_byte & | out_gz_data, | ||
const int | compress_level = 9 |
||
) |
Compress a memory buffer in gz-file format and return it as a block a memory.
compress_level: 0=no compression, 1=best speed, 9=maximum
Definition at line 272 of file zip.cpp.
References mrpt::format(), mrpt::utils::CFileInputStream::getTotalBytesCount(), mrpt::system::now(), mrpt::utils::CFileInputStream::open(), mrpt::utils::CStream::ReadBuffer(), and THROW_EXCEPTION.
Referenced by TEST().
bool mrpt::compress::zip::compress_gz_file | ( | const std::string & | file_path, |
const vector_byte & | buffer, | ||
const int | compress_level = 9 |
||
) |
Compress a memory buffer into a gzip file (xxxx.gz).
compress_level: 0=no compression, 1=best speed, 9=maximum
Definition at line 239 of file zip.cpp.
References CFileGZOutputStream, and THROW_EXCEPTION.
void mrpt::compress::zip::decompress | ( | void * | inData, |
size_t | inDataSize, | ||
std::vector< unsigned char > & | outData, | ||
size_t | outDataEstimatedSize | ||
) |
Decompress an array of bytes into another one.
std::exception | If the apriori estimated decompressed size is not enought |
Definition at line 137 of file zip.cpp.
References ASSERT_, MRPT_END_WITH_CLEAN_UP, MRPT_START, and Z_OK.
Referenced by mrpt::utils::CImage::readFromStream().
void mrpt::compress::zip::decompress | ( | void * | inData, |
size_t | inDataSize, | ||
void * | outData, | ||
size_t | outDataBufferSize, | ||
size_t & | outDataActualSize | ||
) |
Decompress an array of bytes into another one.
std::exception | If the apriori estimated decompressed size is not enought |
Definition at line 161 of file zip.cpp.
References ASSERT_, MRPT_END_WITH_CLEAN_UP, MRPT_START, and Z_OK.
void mrpt::compress::zip::decompress | ( | mrpt::utils::CStream & | inStream, |
size_t | inDataSize, | ||
void * | outData, | ||
size_t | outDataBufferSize, | ||
size_t & | outDataActualSize | ||
) |
Decompress an array of bytes into another one.
std::exception | If the apriori estimated decompressed size is not enought |
Definition at line 184 of file zip.cpp.
References ASSERT_, MRPT_END_WITH_CLEAN_UP, MRPT_START, mrpt::utils::CStream::ReadBuffer(), and Z_OK.
bool mrpt::compress::zip::decompress_gz_data_block | ( | const vector_byte & | in_gz_data, |
vector_byte & | out_data | ||
) |
Decompress an array of bytes storing a gz-compressed stream of data into a memory buffer.
If the input data is not recognized as a .gz file, the output data will be an exact copy of the input.
Definition at line 378 of file zip.cpp.
References decompress_gz_file(), mrpt::system::getTempFileName(), and mrpt::system::vectorToBinaryFile().
Referenced by TEST().
bool mrpt::compress::zip::decompress_gz_file | ( | const std::string & | file_path, |
vector_byte & | buffer | ||
) |
Decompress a gzip file (xxxx.gz) into a memory buffer.
If the file is not a .gz file, it just read the whole file unmodified.
Definition at line 211 of file zip.cpp.
References mrpt::utils::CFileGZInputStream::fileOpenCorrectly(), mrpt::utils::CFileGZInputStream::getTotalBytesCount(), and mrpt::utils::CStream::ReadBuffer().
Referenced by decompress_gz_data_block(), and mrpt::opengl::C3DSScene::loadFrom3DSFile().
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