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LRIT Windows Decompressor (using LritRice.lib)

racerxdl's Avatar Lucas Teske revised this gist 9 years ago. Go to revision

1 file changed, 169 insertions

decompress.cpp(file created)

@@ -0,0 +1,169 @@
1 + #include <stdio.h>
2 + #include <stdint.h>
3 +
4 + #include <mutex>
5 + #include <atomic>
6 + #include <thread>
7 + #include <cstdint>
8 + #include <iostream>
9 + #include <vector>
10 + #include <exception>
11 + #include <queue>
12 + #include <sstream>
13 + #include <string>
14 + #include <chrono>
15 + #include <random>
16 + #include <functional>
17 +
18 + #include "..\packetDecoder\RiceDecompression.h"
19 +
20 + //#define PREFIX "1696_0_"
21 + //#define PIXELS 3463
22 +
23 + int PIXELS;
24 + std::string PREFIX;
25 + bool debugMode = false;
26 +
27 + void processFile(std::string &filename, std::string &outputname) {
28 + //1696_0_1395.lrit
29 + unsigned char *input;
30 + FILE *f = fopen(filename.c_str(), "rb");
31 + if (f != NULL) {
32 + fseek(f, 0L, SEEK_END);
33 + long sz = ftell(f);
34 + fseek(f, 0L, SEEK_SET);
35 + input = new unsigned char[sz];
36 + fread(input, sz, 1, f);
37 + CRiceDecompression *Rice = new CRiceDecompression(49, 8, 16, PIXELS, 1);
38 + bool Worked = Rice->Decompress(input, sz);
39 + if (!Worked) {
40 + std::cerr << "Failed to decompress" << std::endl;
41 + }
42 + FILE *o = fopen(outputname.c_str(), "ab");
43 + fwrite(Rice->Ptr(), Rice->Size(), 1, o);
44 + fclose(o);
45 + fclose(f);
46 + delete input;
47 + } else {
48 + unsigned char *output = new unsigned char[PIXELS];
49 + memset(output, 0x00, PIXELS);
50 + if (debugMode) std::cout << "Inexistent file " << filename << ". Adding empty frame." << std::endl;
51 + FILE *o = fopen(outputname.c_str(), "ab");
52 + fwrite(output, PIXELS, 1, o);
53 + fclose(o);
54 + delete output;
55 + }
56 + }
57 +
58 + std::string buildFilename(std::string prefix, int n) {
59 + std::stringstream ss;
60 + ss << prefix << n << ".lrit";
61 + return ss.str();
62 + }
63 +
64 + int doOnlyOne(std::string filename, int Pixels) {
65 + FILE *f;
66 +
67 + if (debugMode) std::cout << "Filename: " << filename << " Pixels: " << Pixels << std::endl;
68 +
69 + f = fopen(filename.c_str(), "rb");
70 +
71 + if (f == NULL) {
72 + std::cerr << "Error Opening file" << std::endl;
73 + int x;
74 + std::cin >> x;
75 + return -1;
76 + }
77 +
78 + fseek(f, 0L, SEEK_END);
79 + long sz = ftell(f);
80 + fseek(f, 0L, SEEK_SET);
81 +
82 + if (debugMode) std::cout << "File size: " << sz << std::endl;
83 +
84 + unsigned char *data = new unsigned char[sz];
85 +
86 + fread(data, sz, 1, f);
87 +
88 + //Rice Decompression
89 + bool Worked;
90 + CRiceDecompression *Rice = new CRiceDecompression(49, 8, 16, Pixels, 1);
91 + Worked = Rice->Decompress(data, sz);
92 + if (!Worked) {
93 + std::cerr << "Failed to decompress" << std::endl;
94 + }
95 + if (debugMode) std::cout << "Worked: " << Worked << std::endl;
96 +
97 + fclose(f);
98 + f = fopen(std::string(filename + ".decomp").c_str(), "wb");
99 + fwrite(Rice->Ptr(), Rice->Size(), 1, f);
100 + fclose(f);
101 + //Frees input memory
102 + int x;
103 + std::cin >> x;
104 + delete[] data;
105 + }
106 +
107 + int main(int argc, char *argv[]) {
108 + if (argc < 5) {
109 + int Pixels;
110 + std::string filename;
111 + if (argc >= 3) {
112 + std::istringstream(argv[1]) >> Pixels;
113 + filename = std::string(argv[2]);
114 + } else {
115 + filename = std::string("C:\\Users\\lucas\\Desktop\\Data\\1725_0_10212.lrit");
116 + Pixels = 3463;
117 + }
118 + return doOnlyOne(filename, Pixels);
119 + }
120 + debugMode = argc == 7;
121 + PREFIX = std::string(argv[1]);
122 + std::istringstream(argv[2]) >> PIXELS;
123 +
124 + int startNumber = 10212;
125 + int endNumber = 10323;
126 +
127 + std::istringstream(argv[3]) >> startNumber;
128 + std::istringstream(argv[4]) >> endNumber;
129 +
130 + std::string baseFilename = buildFilename(PREFIX + "_decomp", startNumber - 1);
131 + if (debugMode) std::cout << "Output file: " << baseFilename << std::endl;
132 + if (debugMode) std::cout << "Reading first file with ID " << startNumber - 1 << " filename: " << buildFilename(PREFIX, startNumber - 1) << std::endl;
133 +
134 + FILE *f = fopen(baseFilename.c_str(), "wb");
135 + FILE *f2 = fopen(buildFilename(PREFIX, startNumber - 1).c_str(), "rb");
136 +
137 + if (f == NULL || f2 == NULL) {
138 + std::cerr << "Error opening base files" << std::endl;
139 + return 1;
140 + }
141 +
142 + fseek(f2, 0L, SEEK_END);
143 + long sz = ftell(f2);
144 + fseek(f2, 0L, SEEK_SET);
145 + //sz -= 10;
146 +
147 + if (debugMode) std::cout << "Header size: " << sz << std::endl;
148 +
149 + char *data = new char[sz];
150 + fread(data, sz, 1, f2);
151 + fwrite(data, sz, 1, f);
152 + fclose(f);
153 + fclose(f2);
154 +
155 + if (debugMode) std::cout << "Header wrote. Reading sequence" << std::endl;
156 +
157 +
158 + for (int i = startNumber; i <= endNumber; i++) {
159 + std::string infile = buildFilename(PREFIX, i);
160 + if (debugMode) std::cout << "Opening file " << infile << std::endl;
161 + processFile(infile, baseFilename);
162 + }
163 + if (debugMode) std::cout << "Finished!" << std::endl;
164 + if (argc < 6) {
165 + int x;
166 + std::cin >> x;
167 + }
168 + return 0;
169 + }
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