public void Decompress(Stream input)
{
Table = ChunkedLz4FileTable.Read(input, ChunkCount);
PartialHeaderSize = HeaderSize - (input.Position);
TrailingFileHeaderContent = new byte[PartialHeaderSize];
input.Read(TrailingFileHeaderContent);
input.Position = HeaderSize;
var data = new byte[HeaderSize + Table.Chunks.Sum(c => c.DecompressedChunkSize)];
foreach (var chunk in Table.Chunks)
{
chunk.Read(input);
}
byte[] buffer = new byte[input.Length - input.Position];
input.Read(buffer, 0, buffer.Length);
RestOfContent = buffer;
int index = 0;
if (Directory.Exists("decompressed"))
{
Directory.Delete("decompressed", true);
}
Directory.CreateDirectory("decompressed");
foreach (var chunk in Table.Chunks)
{
File.WriteAllBytes($"decompressed/chunk_{index}.bin", chunk.DecompressedData);
index++;
}
}
public byte[] Decompress(Stream input)
{
ReadHeader(input);
Table = ChunkedLz4FileTable.Read(input, MetaInformation.ChunkCount);
MetaInformation.PartialHeaderSize = MetaInformation.HeaderSize - (input.Position);
MetaInformation.TrailingFileHeaderContent = new byte[MetaInformation.PartialHeaderSize];
input.Read(MetaInformation.TrailingFileHeaderContent);
input.Position = MetaInformation.HeaderSize;
var data = new byte[MetaInformation.HeaderSize + Table.Chunks.Sum(c => c.DecompressedChunkSize)];
foreach (var chunk in Table.Chunks)
{
chunk.Read(input);
}
byte[] buffer = new byte[input.Length - input.Position];
input.Read(buffer, 0, buffer.Length);
MetaInformation.RestOfContent = buffer;
int index = 0;
byte[] result;
using (var stream = new MemoryStream())
{
byte[] header = new byte[MetaInformation.HeaderSize];
input.Position = 0;
input.Read(header, 0, MetaInformation.HeaderSize);
stream.Write(header);
foreach (var chunk in Table.Chunks)
{
//File.WriteAllBytes($"chunk_{chunk.ChunkGuid}.bin", chunk.DecompressedData);
stream.Write(chunk.DecompressedData, 0, chunk.DecompressedData.Length);
index++;
}
stream.Write(MetaInformation.RestOfContent);
result = stream.ToArray();
}
return(result);
}
