public void CompressFile(string path, string originalName)
{
LZW lZW = new LZW();
byte[] buffer;
using (FileStream fs = new FileStream(path, FileMode.OpenOrCreate))
{
buffer = new byte[fs.Length];
using (var br = new BinaryReader(fs))
{
br.Read(buffer, 0, (int)fs.Length);
}
}
byte[] result = lzw.EncodeData(buffer);
for (int i = 1; File.Exists(CompressedFilePath); i++)
{
var split = CompressedFileName.Split(".lzw");
if (split[0].Contains("("))
{
var split2 = split[0].Split("(");
CompressedFileName = split2[0] + "(" + i + ")" + ".lzw";
}
else
{
CompressedFileName = split[0] + "(" + i + ")" + ".lzw";
}
split = CompressedFilePath.Split("compressions");
CompressedFilePath = split[0] + "compressions\\" + CompressedFileName;
}
byte[] nombre = Encoding.ASCII.GetBytes(originalName.PadRight(200, '\0').ToArray());
using (var fs = new FileStream(CompressedFilePath, FileMode.OpenOrCreate))
{
fs.Write(nombre, 0, 200);
fs.Seek(200, SeekOrigin.Begin);
fs.Write(result, 0, result.Length);
}
CompressionRatio = lzw.CompressionRatio();
CompressionFactor = lzw.CompressionFactor();
ReductionPercentage = lzw.ReductionPercentage();
}
public void CompressFile(string path)
{
Huffman hf = new Huffman();
byte[] buffer;
using (FileStream fs = new FileStream(path, FileMode.OpenOrCreate))
{
buffer = new byte[fs.Length];
using (var br = new BinaryReader(fs))
{
br.Read(buffer, 0, (int)fs.Length);
}
}
byte[] result = hf.EncodeData(buffer);
for (int i = 1; File.Exists(CompressedFilePath); i++)
{
var split = CompressedFileName.Split(".huff");
if (split[0].Contains("("))
{
var split2 = split[0].Split("(");
CompressedFileName = split2[0] + "(" + i + ")" + ".huff";
}
else
{
CompressedFileName = split[0] + "(" + i + ")" + ".huff";
}
split = CompressedFilePath.Split("compressions");
CompressedFilePath = split[0] + "compressions\\" + CompressedFileName;
}
using (var fs = new FileStream(CompressedFilePath, FileMode.OpenOrCreate))
{
fs.Write(result, 0, result.Length);
}
CompressionRatio = hf.CompressionRatio();
CompressionFactor = hf.CompressionFactor();
ReductionPercentage = hf.ReductionPercentage();
}
public void WriteCompression(FileManage file)
{
string[] path = CompressedFilePath.Split("Data");
string file_path = path[0] + "\\Data\\compressions_history.json";
List <FileManage> list;
string json_text = "";
using (FileStream fs = new FileStream(file_path, FileMode.OpenOrCreate))
{
using (StreamReader sr = new StreamReader(fs))
{
json_text = sr.ReadToEnd();
}
}
if (json_text == "")
{
using (StreamWriter sw = new StreamWriter(file_path, false, Encoding.UTF8))
{
string file_stats = JsonSerializer.Serialize(file);
sw.Write("[" + file_stats + "]");
return;
}
}
else
{
JsonSerializerOptions name_rule = new JsonSerializerOptions {
IgnoreNullValues = true
};
list = JsonSerializer.Deserialize <List <FileManage> >(json_text, name_rule);
list.Add(file);
}
using (StreamWriter sw = new StreamWriter(file_path, false, Encoding.UTF8))
{
string file_stats = JsonSerializer.Serialize(list);
sw.Write(file_stats);
}
}
