Self-made C++ file archiver and archive extractor programs based on Huffman's lossless compression algorithm
The Compressor is a 2-pass program. What I mean by this is that the Compressor reads input files 2 times.
In the first pass, the program counts usage frequency of every unique byte and creates a weighted translation tree for every used unique byte inversely proportional to its usage frequency and then writes this transformation info to the compressed file for decompression purposes
In the second pass, the program translates input files according to the translation tree and writes it to the newly created compressed file
The Decompressor is a 1-pass program: The Decompressor first reads translation info and creates a binary tree from it. After this process is done, it uses this binary translation tree to decode the rest of the file
- Run below script using your favourate shell:
chmod u+x Huffman.sh
./Huffman.sh
- After running the script, you can use archive command below to compress the file you want:
- To compress one file use:
./archive {{filename}}
- To compress multiple files use:
./archive {{filename1}} {{filename2}} ...
- And to decompress a compressed file, use the extract command below:
./extract {{filename}}
- Compressor.cpp does not compress folders