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[Source] .net/c# GZipStream data compression

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Posted on 11/13/2017 3:30:52 PM | | |

When storing or transferring files, data or files need to be compressed to save space and traffic. Here we talk about data compression through C#.

GZipStream compression
Microsoft provides methods for compressing and decompressing streams.

This class stands for GZip Data Format, which uses industry-standard algorithms for lossless compression and decompression of files. This format includes a cyclic redundancy checkpoint that detects data corruption. The GZip data format uses the same algorithm as the DeflateStream class, but it can be extended to use other compression formats. This format can be easily implemented in a way that does not involve patent usage rights.

Compressed GZipStream objects written to files with the extension .gz can be decompressed using a number of common compression tools; However, they do not provide functionality for adding files to or extracting files from .zip.zip archives.

The compression feature in DeflateStream and GZipStream is exposed as a stream. Since data is read byte-by-byte, it is not possible to determine the best way to compress an entire file or a large block of data by making multiple passes. For uncompressed data sources, it's best to use the DeflateStream and GZipStream classes. If the source data is compressed, you may actually increase the size of the stream when using these classes.
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