HuffmanDecoder_8hpp_source.html

#ifndef HUFFMANDECODER_HPP

#define HUFFMANDECODER_HPP


#include "huffmantree/Huffman.hpp"

#include <bitset>

#include <iostream>

#include <stdint.h>

#include <vector>

#include <fstream>


using namespace std;


class HuffmanDecoder

{

    ifstream inFile;


    unordered_map<uint32_t, uint8_t> code;


    uint64_t current_position;


    uint8_t last_bit_to_read;


    void readCodes();


    vector<uint8_t> readMessage();


    vector<uint8_t> decodeVec(const vector<uint8_t> &buffer);


public:

    vector<uint8_t> decodeFile(const string &filenameIn, const string &filenameOut);


    vector<uint8_t> decodeFile(const string &filenameIn);


    vector<uint8_t> decodeVector(const vector<uint8_t> &vector);

};


#endif // HUFFMANDECODER_HPP

Huffman.hpp

HuffmanDecoder
Handles reading a binary-encoded file, reconstructing the Huffman codes, and decoding the data.
Definition HuffmanDecoder.hpp:23

HuffmanDecoder::decodeVector
vector< uint8_t > decodeVector(const vector< uint8_t > &vector)
Decodes a Huffman-encoded byte vector in memory.
Definition HuffmanDecoder.cpp:144

HuffmanDecoder::decodeVec
vector< uint8_t > decodeVec(const vector< uint8_t > &buffer)
Decodes a buffer of raw Huffman-encoded bytes into original data.
Definition HuffmanDecoder.cpp:81

HuffmanDecoder::decodeFile
vector< uint8_t > decodeFile(const string &filenameIn, const string &filenameOut)
Decodes a file and writes the decoded output to another file.
Definition HuffmanDecoder.cpp:126

HuffmanDecoder::current_position
uint64_t current_position
Tracks the current byte position in the input file for reading code maps and data.
Definition HuffmanDecoder.hpp:37

HuffmanDecoder::last_bit_to_read
uint8_t last_bit_to_read
Specifies how many bits in the last byte are valid and should be read.
Definition HuffmanDecoder.hpp:42

HuffmanDecoder::readCodes
void readCodes()
Reads the Huffman header and code mappings from the encoded file.
Definition HuffmanDecoder.cpp:3

HuffmanDecoder::readMessage
vector< uint8_t > readMessage()
Reads and decodes the Huffman-encoded message from the input file.
Definition HuffmanDecoder.cpp:66

HuffmanDecoder::inFile
ifstream inFile
Input file stream from which the encoded data is read.
Definition HuffmanDecoder.hpp:27

HuffmanDecoder::code
unordered_map< uint32_t, uint8_t > code
Maps Huffman codes (represented as integers) to original byte values.
Definition HuffmanDecoder.hpp:32