public static System.IO.Stream DeCompress(System.IO.Stream stream, uint length, bool EOF = false)
{
SevenZip.Compression.LZMA.Decoder decoder = new SevenZip.Compression.LZMA.Decoder();
int tagsize = 5;
int filelen = -1;//如果压缩时使用了结束标志选项，则这里传-1，解压缩会知道文件长度
if (!EOF)
{
//读取文件长度
byte[] lbuf = new byte[4];
stream.Read(lbuf, 0, 4);
filelen = (int)BitConverter.ToUInt32(lbuf, 0);
tagsize += 4;
}
//读取压缩属性
byte[] properties = new byte[5];
if (stream.Read(properties, 0, 5) != 5)
throw (new Exception("input .lzma is too short"));
decoder.SetDecoderProperties(properties);
System.IO.MemoryStream sout = new System.IO.MemoryStream();
decoder.Code(stream, sout, length - tagsize, filelen, null);
sout.Position = 0;
return sout;
}
private static string DecompressFromFile(string filename)
{
SevenZip.Compression.LZMA.Decoder coder = new SevenZip.Compression.LZMA.Decoder();
FileStream input = new FileStream(filename, FileMode.Open, FileAccess.Read);
MemoryStream output = new MemoryStream();
// Read the decoder properties
byte[] properties = new byte[5];
input.Read(properties, 0, 5);
// Read in the decompress file size.
byte [] fileLengthBytes = new byte[8];
input.Read(fileLengthBytes, 0, 8);
long fileLength = BitConverter.ToInt64(fileLengthBytes, 0);
// Decompress the file.
coder.SetDecoderProperties(properties);
coder.Code(input, output, input.Length, fileLength, null);
output.Flush();
string ret = System.Text.Encoding.UTF8.GetString(output.ToArray());
output.Close();
input.Close();
return(ret);
}
public static MemoryStream Decompress(FileStream inStream)
{
var decoder = new Decoder();
var properties = new byte[5];
if (inStream.Read(properties, 0, 5) != 5)
throw (new Exception("input .lzma is too short"));
decoder.SetDecoderProperties(properties);
long outSize = 0;
for (var i = 0; i < 8; i++)
{
var v = inStream.ReadByte();
if (v < 0)
break;
outSize |= ((long) (byte) v) << (8 * i);
}
var compressedSize = inStream.Length - inStream.Position;
var outStream = new MemoryStream();
decoder.Code(inStream, outStream, compressedSize, outSize, null);
outStream.Flush();
outStream.Position = 0;
return outStream;
}
public static void DecompressFileLZMA(string inFile, string outFile)
{
Debug.Log("DecompressFileLZMA in File is :" + inFile);
Debug.Log("DecompressFileLZMA in outFile is :" + outFile);
SevenZip.Compression.LZMA.Decoder coder = new SevenZip.Compression.LZMA.Decoder();
FileStream input = new FileStream(inFile, FileMode.Open, FileAccess.Read);
string path = outFile.Substring(0, outFile.LastIndexOf("/"));
if (!Directory.Exists(path))
{
Directory.CreateDirectory(path);
}
FileStream output = new FileStream(outFile, FileMode.Create);
// Read the decoder properties
byte[] properties = new byte[5];
input.Read(properties, 0, 5);
// Read in the decompress file size.
byte [] fileLengthBytes = new byte[8];
input.Read(fileLengthBytes, 0, 8);
long fileLength = BitConverter.ToInt64(fileLengthBytes, 0);
// Decompress the file.
coder.SetDecoderProperties(properties);
coder.Code(input, output, input.Length, fileLength, null);
output.Flush();
output.Close();
input.Close();
}
/// <summary>
/// Decompresses the specified <see cref="byte"/> into
/// LZMA.
/// </summary>
/// <param name="bytes">The <see cref="byte"/> array to decompress.</param>
/// <returns>The decompressed <see cref="byte"/> array.</returns>
public static byte[] Decompress(byte[] bytes)
{
if (bytes == null)
throw new ArgumentNullException("bytes");
using (var outStream = new MemoryStream())
{
using (var inStream = new MemoryStream(bytes))
{
var decoder = new Decoder();
inStream.Seek(0, 0);
var properties = new byte[5];
if (inStream.Read(properties, 0, 5) != 5)
throw new Exception("Input .lzma is too short");
var outSize = 0L;
for (int i = 0; i < 8; i++)
{
var v = inStream.ReadByte();
if (v < 0)
throw new Exception("Can't Read 1");
outSize |= ((long)v) << (8 * i);
}
var compressedSize = inStream.Length - inStream.Position;
decoder.SetDecoderProperties(properties);
decoder.Code(inStream, outStream, compressedSize, outSize, null);
return outStream.ToArray();
}
}
}
public static string Decompressed(string text)
{
SevenZip.Compression.LZMA.Decoder coder = new SevenZip.Compression.LZMA.Decoder();
byte[] array = System.Convert.FromBase64String(text);
MemoryStream input = new MemoryStream(array);
MemoryStream output = new MemoryStream();
byte[] properties = new byte[5];
input.Read(properties, 0, 5);
// Read in the decompress file size.
byte [] fileLengthBytes = new byte[8];
input.Read(fileLengthBytes, 0, 8);
long fileLength = BitConverter.ToInt64(fileLengthBytes, 0);
coder.SetDecoderProperties(properties);
coder.Code(input, output, input.Length, fileLength, null);
output.Flush();
string ret = System.Text.Encoding.UTF8.GetString(output.ToArray());
output.Close();
input.Close();
return(ret);
}
public static void DecompressBytesLZMA(byte[] bytes, string outFile)
{
if (File.Exists(outFile))
{
File.Delete(outFile);
}
SevenZip.Compression.LZMA.Decoder coder = new SevenZip.Compression.LZMA.Decoder();
using (MemoryStream input = new MemoryStream(bytes, 0, bytes.Length))
{
using (FileStream output = new FileStream(outFile, FileMode.Create))
{
// Read the decoder properties
byte[] properties = new byte[5];
input.Read(properties, 0, 5);
// Read in the decompress file size.
byte[] fileLengthBytes = new byte[8];
input.Read(fileLengthBytes, 0, 8);
long fileLength = BitConverter.ToInt64(fileLengthBytes, 0);
// Decompress the file.
coder.SetDecoderProperties(properties);
coder.Code(input, output, input.Length, fileLength, null);
output.Flush();
//output.Close();
}
//input.Close();
}
}
public static byte[] DecompressBuffer(byte[] inbuffer)
{
MemoryStream input = new MemoryStream(inbuffer);
MemoryStream output = new MemoryStream();
input.Position = 0;
byte[] fileLengthBytes = new byte[4];
input.Read(fileLengthBytes, 0, 4);
int fileLength = BitConverter.ToInt32(fileLengthBytes, 0);
byte[] properties = new byte[5];
input.Read(properties, 0, 5);
try
{
SevenZip.Compression.LZMA.Decoder coder = new SevenZip.Compression.LZMA.Decoder();
coder.SetDecoderProperties(properties);
coder.Code(input, output, input.Length, fileLength, null);
output.Position = 0;
byte[] bytes = new byte[output.Length];
output.Read(bytes, 0, bytes.Length);
return(bytes);
}
catch (System.Exception ex)
{
//Debugger.LogError(ex.Message);
return(null);
}
}
public static byte[] Decompress(byte[] inputBytes)
{
MemoryStream newInStream = new MemoryStream(inputBytes);
SevenZip.Compression.LZMA.Decoder decoder = new SevenZip.Compression.LZMA.Decoder();
newInStream.Seek(0, 0);
MemoryStream newOutStream = new MemoryStream();
byte[] properties2 = new byte[5];
if (newInStream.Read(properties2, 0, 5) != 5)
throw (new Exception("input .lzma is too short"));
long outSize = 0;
for (int i = 0; i < 8; i++)
{
int v = newInStream.ReadByte();
if (v < 0)
throw (new Exception("Can't Read 1"));
outSize |= ((long)(byte)v) << (8 * i);
}
decoder.SetDecoderProperties(properties2);
long compressedSize = newInStream.Length - newInStream.Position;
decoder.Code(newInStream, newOutStream, compressedSize, outSize, null);
byte[] b = newOutStream.ToArray();
return b;
}
private static void DecompressFileLZMA(string inFile, string outFile)
{
System.Diagnostics.Stopwatch stopwatch = new System.Diagnostics.Stopwatch();
stopwatch.Start();
SevenZip.Compression.LZMA.Decoder coder = new SevenZip.Compression.LZMA.Decoder();
FileStream input = new FileStream(inFile, FileMode.Open);
FileStream output = new FileStream(outFile, FileMode.Create);
// Read the decoder properties
byte[] properties = new byte[5];
input.Read(properties, 0, 5);
// Read in the decompress file size.
byte[] fileLengthBytes = new byte[8];
input.Read(fileLengthBytes, 0, 8);
long fileLength = BitConverter.ToInt64(fileLengthBytes, 0);
// Decompress the file.
coder.SetDecoderProperties(properties);
coder.Code(input, output, input.Length, fileLength, null);
output.Flush();
output.Close();
input.Flush();
input.Close();
stopwatch.Stop();
Debug.LogFormat("7z encode time: {0}", stopwatch.Elapsed.TotalSeconds);
}
//decompresses the given byte array
public static byte[] Decompress(byte[] combytes)
{
if (combytes == null)
{
return(null);
}
//create the decoder object
SevenZip.Compression.LZMA.Decoder coder = new SevenZip.Compression.LZMA.Decoder();
//create the memory streams;
MemoryStream input = new MemoryStream(combytes);
MemoryStream output = new MemoryStream();
//set the properties of teh decoder
byte[] properties = new byte[5];
input.Read(properties, 0, 5);
coder.SetDecoderProperties(properties);
//read the length of the original file
byte[] filelendata = new byte[8];
input.Read(filelendata, 0, 8);
long filelen = System.BitConverter.ToInt64(filelendata, 0);
//decode the byte array
coder.Code(input, output, input.Length, filelen, null);
//return the decompressed array
return(output.GetBuffer());
}
public static void Decompress(Stream src, Stream dst)
{
byte[] decode_properties = new byte[5];
int n = src.Read(decode_properties, 0, 5);
if (n != 5)
{
Console.WriteLine("read encode_properties error.");
return;
}
SevenZip.Compression.LZMA.Decoder decoder = new SevenZip.Compression.LZMA.Decoder();
decoder.SetDecoderProperties(decode_properties);
long outSize = 0;
for (int i = 0; i < 8; i++)
{
int v = src.ReadByte();
if (v < 0)
{
Console.WriteLine("read outSize error.");
return;
}
outSize |= ((long)(byte)v) << (8 * i);
}
long compressedSize = src.Length - src.Position;
decoder.Code(src, dst, compressedSize, outSize, null);
}
public static System.IO.Stream DeCompress(System.IO.Stream stream, uint length, bool EOF = false)
{
SevenZip.Compression.LZMA.Decoder decoder = new SevenZip.Compression.LZMA.Decoder();
int tagsize = 5;
int filelen = -1;//如果压缩时使用了结束标志选项，则这里传-1，解压缩会知道文件长度
if (!EOF)
{
//读取文件长度
byte[] lbuf = new byte[4];
stream.Read(lbuf, 0, 4);
filelen = (int)BitConverter.ToUInt32(lbuf, 0);
tagsize += 4;
}
//读取压缩属性
byte[] properties = new byte[5];
if (stream.Read(properties, 0, 5) != 5)
{
throw (new Exception("input .lzma is too short"));
}
decoder.SetDecoderProperties(properties);
System.IO.MemoryStream sout = new System.IO.MemoryStream();
decoder.Code(stream, sout, length - tagsize, filelen, null);
sout.Position = 0;
return(sout);
}
public static byte[] Decompress(byte[] src)
{
if (src == null)
{
return(null);
}
SevenZip.Compression.LZMA.Decoder coder = new SevenZip.Compression.LZMA.Decoder();
MemoryStream input = new MemoryStream(src);
MemoryStream output = new MemoryStream();
byte[] properties = new byte[5];
input.Read(properties, 0, 5);
byte[] bytes = new byte[8];
input.Read(bytes, 0, 8);
long size = BitConverter.ToInt64(bytes, 0);
// Decompress the file.
coder.SetDecoderProperties(properties);
coder.Code(input, output, input.Length, size, null);
output.Flush();
input.Flush();
bytes = output.ToArray();
output.Close();
input.Close();
return(bytes);
}
public static byte[] Decompress(this byte[] buffer)
{
if (buffer.Length > 17 && buffer.IsCompressed())
{
MemoryStream inputStream = new MemoryStream(buffer);
int lzmaID = inputStream.ReadInt();
int acutalSize = inputStream.ReadInt();
int lzmaSize = inputStream.ReadInt();
byte[] props = inputStream.ReadBytes(5);
int lzmaBufferSize = buffer.Length - 17;
if (lzmaBufferSize != lzmaSize)
throw new Exception(string.Format("LZMA data corruption. Expected {0} bytes got {1}", lzmaSize, lzmaBufferSize));
byte[] uncompressedBuffer = new byte[acutalSize];
MemoryStream outputStream = new MemoryStream(uncompressedBuffer);
try
{
LZMADecoder = new Decoder();
LZMADecoder.SetDecoderProperties(props);
LZMADecoder.Code(inputStream, outputStream, inputStream.Length, outputStream.Length, null);
}
catch (Exception e)
{
throw new Exception(e.Message);
}
return uncompressedBuffer;
}
else
throw new Exception("Buffer is not compressed!");
}
/// <summary>
/// real uncompress file
/// </summary>
/// <param name="inFile"></param>
/// <param name="outFile"></param>
private static void DecompressFileLZMA(string inFile, string outFile)
{
SevenZip.Compression.LZMA.Decoder coder = new SevenZip.Compression.LZMA.Decoder();
FileStream Inputfs, Outputfs;
Inputfs = File.Open(inFile, FileMode.Open);
Outputfs = File.Open(outFile, FileMode.Create);
{
// Read the decoder properties
byte[] properties = new byte[5];
Inputfs.Read(properties, 0, 5);
// Read in the decompress file size.
byte[] fileLengthBytes = new byte[8];
Inputfs.Read(fileLengthBytes, 0, 8);
long fileLength = BitConverter.ToInt64(fileLengthBytes, 0);
// Decompress the file.
coder.SetDecoderProperties(properties);
coder.Code(Inputfs, Outputfs, Inputfs.Length, fileLength, null);
Outputfs.Flush();
Inputfs.Flush();
Inputfs.Close();
Outputfs.Close();
}
}
public void Zip2()
{
SevenZip.Compression.LZMA.Decoder coder = new SevenZip.Compression.LZMA.Decoder();
FileStream input = new FileStream(Application.dataPath+"/2.zip", FileMode.Open);
MemoryStream output = new MemoryStream ();
//FileStream output = new FileStream(outFile, FileMode.Create);
// Read the decoder properties
byte[] properties = new byte[5];
input.Read(properties, 0, 5);
// Read in the decompress file size.
byte [] fileLengthBytes = new byte[8];
input.Read(fileLengthBytes, 0, 8);
long fileLength = BitConverter.ToInt64(fileLengthBytes, 0);
// Decompress the file.
coder.SetDecoderProperties(properties);
coder.Code(input, output, input.Length, fileLength, null);
output.Flush();
var b = output.GetBuffer ();
var ret = System.Text.Encoding.UTF8.GetString (b);
//StreamReader reader = new StreamReader(output);
Debug.Log (ret);
output.Close();
input.Close();
}
public static void DecompressFileLZMA(string inFile, string outFile)
{
using (FileStream input = new FileStream(inFile, FileMode.Open))
{
using (FileStream output = new FileStream(outFile, FileMode.Create))
{
SevenZip.Compression.LZMA.Decoder decoder = new SevenZip.Compression.LZMA.Decoder();
byte[] properties = new byte[5];
if (input.Read(properties, 0, 5) != 5)
{
throw (new Exception("input .lzma is too short"));
}
decoder.SetDecoderProperties(properties);
long outSize = 0;
for (int i = 0; i < 8; i++)
{
int v = input.ReadByte();
if (v < 0)
{
throw (new Exception("Can't Read 1"));
}
outSize |= ((long)(byte)v) << (8 * i);
}
long compressedSize = input.Length - input.Position;
decoder.Code(input, output, compressedSize, outSize, null);
}
}
}
public static byte[] DecompressLzmaStream(Stream input)
{
SevenZip.Compression.LZMA.Decoder decoder = new SevenZip.Compression.LZMA.Decoder();
byte[] properties = new byte[5];
if (input.Read(properties, 0, 5) != 5)
{
throw (new Exception("input .lzma is too short"));
}
decoder.SetDecoderProperties(properties);
long outSize = 0;
for (int i = 0; i < 8; i++)
{
int v = input.ReadByte();
if (v < 0)
{
throw (new Exception("Can't Read 1"));
}
outSize |= ((long)(byte)v) << (8 * i);
}
long compressedSize = input.Length - input.Position;
byte[] buffer = new byte[outSize];
using (MemoryStream output = new MemoryStream(buffer))
{
decoder.Code(input, output, compressedSize, outSize, null);
}
return(buffer);
}
/// <summary>
/// 使用LZMA算法解压文件
/// </summary>
/// <param name="inFile"></param>
/// <param name="outFile"></param>
public static void DecompressFileLZMA(string inFile, string outFile)
{
SevenZip.Compression.LZMA.Decoder coder = new SevenZip.Compression.LZMA.Decoder();
using (FileStream input = new FileStream(inFile, FileMode.Open))
{
using (FileStream output = new FileStream(outFile, FileMode.Create))
{
// Read the decoder properties
byte[] properties = new byte[5];
input.Read(properties, 0, 5);
// Read in the decompress file size
byte[] fileLenthBytes = new byte[8];
input.Read(fileLenthBytes, 0, 8);
long fileLength = BitConverter.ToInt64(fileLenthBytes, 0);
// Decompress the file.
coder.SetDecoderProperties(properties);
coder.Code(input, output, input.Length, fileLength, null);
output.Flush();
output.Close();
input.Close();
}
}
}
private static Stream DecompressInternal(Stream inStream)
{
var outStream = new MemoryStream();
var decoder = new LZMA.Decoder();
var properties = new byte[5];
if (inStream.Read(properties, 0, 5) != 5)
{
throw new InvalidDataException("Stream has an invalid header.");
}
else
{
// Make sure we have the 4 bytes representing the uncompressed size.
// The Clash of Clans LZMA header's uncompressed size is 4 bytes instead of 8.
var outSizeBytes = new byte[4];
if (inStream.Read(outSizeBytes, 0, 4) != 4)
{
throw new InvalidDataException("Stream has an invalid header.");
}
var inSize = inStream.Length - inStream.Position;
var outSize = BitConverter.ToInt32(outSizeBytes, 0);
decoder.SetDecoderProperties(properties);
decoder.Code(inStream, outStream, inSize, outSize, null);
}
outStream.Seek(0, SeekOrigin.Begin);
return(outStream);
}
private void DecompressFileLZMA(string inFile, string outFile)
{
coder = new SevenZip.Compression.LZMA.Decoder();
FileStream input = new FileStream(inFile, FileMode.Open);
FileStream output = new FileStream(outFile.Replace(".zip", ""), FileMode.Create);
// Read the decoder properties
byte[] properties = new byte[5];
input.Read(properties, 0, 5);
// Read in the decompress file size.
byte[] fileLengthBytes = new byte[8];
input.Read(fileLengthBytes, 0, 8);
long fileLength = BitConverter.ToInt64(fileLengthBytes, 0);
// Decompress the file.
coder.SetDecoderProperties(properties);
coder.Code(input, output, input.Length, fileLength, null);
output.Flush();
output.Close();
input.Flush();
input.Close();
StartCoroutine(UnPreccFiles());
//DownLoadRes();
}
public static void Decompress(Stream input, Stream output, Action <long, long> onProgress = null)
{
Decoder decoder = new SevenZip.Compression.LZMA.Decoder();
byte[] properties = new byte[5];
if (input.Read(properties, 0, 5) != 5)
{
throw new Exception("input .lzma is too short");
}
decoder.SetDecoderProperties(properties);
long fileLength = 0;
for (int i = 0; i < 8; i++)
{
int v = input.ReadByte();
if (v < 0)
{
throw new Exception("Can't Read 1");
}
fileLength |= ((long)(byte)v) << (8 * i);
}
ICodeProgress prg = null;
if (onProgress != null)
{
prg = new DelegateCodeProgress(onProgress);
}
long compressedSize = input.Length - input.Position;
decoder.Code(input, output, compressedSize, fileLength, prg);
}
/// <summary>
/// Decompresses the inputBytes from Lzma
/// </summary>
/// <param name="inputBytes">Bytes to decompress</param>
/// <returns>Decompressed bytes</returns>
public static byte[] Decompress(byte[] inputBytes)
{
if (inputBytes == null)
throw new ArgumentNullException("inputBytes");
var decoder = new Decoder();
var newOutStream = new MemoryStream();
var newInStream = new MemoryStream(inputBytes);
newInStream.Seek(0, 0);
var properties2 = new byte[5];
if (newInStream.Read(properties2, 0, 5) != 5)
throw (new Exception("input .lzma is too short"));
var outSize = 0L;
for (int i = 0; i < 8; i++)
{
var v = newInStream.ReadByte();
if (v < 0)
throw (new Exception("Can't Read 1"));
outSize |= ((long)(byte)v) << (8 * i);
}
var compressedSize = newInStream.Length - newInStream.Position;
decoder.SetDecoderProperties(properties2);
decoder.Code(newInStream, newOutStream, compressedSize, outSize, null);
return newOutStream.ToArray();
}
//解压缩文件
public static void DecompressFileLZMA(byte[] inFile, string outFile, Action callBack)
{
DGFileUtil.CreateDirectoryWhenNotExists(outFile);
SevenZip.Compression.LZMA.Decoder coder = new SevenZip.Compression.LZMA.Decoder();
MemoryStream input = new MemoryStream(inFile);
FileStream output = new FileStream(outFile, FileMode.Create);
// Read the decoder properties
byte[] properties = new byte[5];
input.Read(properties, 0, 5);
// Read in the decompress file size.
byte [] fileLengthBytes = new byte[8];
input.Read(fileLengthBytes, 0, 8);
long fileLength = BitConverter.ToInt64(fileLengthBytes, 0);
// Decompress the file.
coder.SetDecoderProperties(properties);
coder.Code(input, output, input.Length, fileLength, null);
output.Flush();
output.Close();
input.Close();
output.Dispose();
input.Dispose();
if (callBack != null)
{
callBack();
}
}
public static byte[] DecompressBytesLZMA(byte[] bytes)
{
SevenZip.Compression.LZMA.Decoder coder = new SevenZip.Compression.LZMA.Decoder();
byte[] bs = null;
using (MemoryStream input = new MemoryStream(bytes, 0, bytes.Length))
{
using (MemoryStream output = new MemoryStream())
{
// Read the decoder properties
byte[] properties = new byte[5];
input.Read(properties, 0, 5);
// Read in the decompress file size.
byte[] fileLengthBytes = new byte[8];
input.Read(fileLengthBytes, 0, 8);
long fileLength = BitConverter.ToInt64(fileLengthBytes, 0);
// Decompress the file.
coder.SetDecoderProperties(properties);
coder.Code(input, output, input.Length, fileLength, null);
output.Flush();
bytes = output.GetBuffer();
//output.Close();
}
//input.Close();
}
return(bytes);
}
public static bool DecompressFile(string inPath, string outFile)
{
bool rsl = true;
FileStream output = new FileStream(outFile, FileMode.Create);
FileStream input = new FileStream(inPath, FileMode.Open);
input.Position = 0;
byte[] fileLengthBytes = new byte[4];
input.Read(fileLengthBytes, 0, 4);
int fileLength = BitConverter.ToInt32(fileLengthBytes, 0);
byte[] properties = new byte[5];
input.Read(properties, 0, 5);
try
{
SevenZip.Compression.LZMA.Decoder coder = new SevenZip.Compression.LZMA.Decoder();
coder.SetDecoderProperties(properties);
coder.Code(input, output, input.Length, fileLength, null);
}
catch (System.Exception ex)
{
//Debugger.LogError(ex.Message);
rsl = false;
}
input.Flush();
input.Close();
output.Flush();
output.Close();
return(rsl);
}
private static byte[] DecompressFileLZMA(string inFile, string outFile)
{
SevenZip.Compression.LZMA.Decoder coder = new SevenZip.Compression.LZMA.Decoder();
FileStream input = new FileStream(inFile, FileMode.Open);
// FileStream output = new FileStream(outFile, FileMode.Create);
var output = new MemoryStream();
// Read the decoder properties
byte[] properties = new byte[5];
input.Read(properties, 0, 5);
// Read in the decompress file size.
byte[] fileLengthBytes = new byte[8];
input.Read(fileLengthBytes, 0, 8);
long fileLength = BitConverter.ToInt64(fileLengthBytes, 0);
// Decompress the file.
coder.SetDecoderProperties(properties);
coder.Code(input, output, input.Length, fileLength, null);
var bytes = output.ToArray();
// output.Flush();
output.Close();
input.Flush();
input.Close();
return(bytes);
}
public byte DecodeNormal(Decoder rangeDecoder)
{
uint symbol = 1;
do
symbol = (symbol << 1) | m_Decoders[symbol].Decode(rangeDecoder);
while (symbol < 0x100);
return (byte)symbol;
}
public Decode(SevenZip.Compression.LZMA.Decoder decoder, java.io.InputStream inputStream,
java.io.OutputStream outputStream, long size)
: base()
{
this.decoder = decoder;
this.inputStream = inputStream;
this.outputStream = outputStream;
this.size = size;
}
public static byte[] Decompress(byte[] input, int uncompressedLength)
{
Contract.Requires(input != null);
Contract.Requires(uncompressedLength >= 0);
Contract.Ensures(Contract.Result<byte[]>() != null);
Contract.Ensures(Contract.Result<byte[]>().Length == uncompressedLength);
var decoder = new Decoder();
var result = decoder.Code(input, uncompressedLength, uncompressedLength);
Contract.Assume(result.Length == uncompressedLength);
return result;
}
public static byte[] Decompress(byte[] inBytes, string outPath = "", SevenZip.ICodeProgress progress = null)
{
byte[] nbytes = null;
Stream inStream = new MemoryStream(inBytes);
Stream outStream = null;
if (string.IsNullOrEmpty(outPath))
{
outStream = new MemoryStream();
}
else
{
outStream = new FileStream(outPath, FileMode.Create, FileAccess.ReadWrite);
}
BinaryReader sr = new BinaryReader(inStream);
if (inStream != null && outStream != null)
{
byte[] properties = new byte[5];
if (sr.Read(properties, 0, 5) != 5)
{
throw (new Exception("input .lzma is too short"));
}
//inStream.Seek(5, SeekOrigin.Begin);
SevenZip.Compression.LZMA.Decoder decoder = new SevenZip.Compression.LZMA.Decoder();
decoder.SetDecoderProperties(properties);
long outSize = 0;
for (int i = 0; i < 8; i++)
{
int v = inStream.ReadByte();
if (v < 0)
{
throw (new Exception("Can't Read 1"));
}
outSize |= ((long)(byte)v) << (8 * i);
}
long compressedSize = inStream.Length - inStream.Position;
mLength = compressedSize;
decoder.Code(inStream, outStream, compressedSize, outSize, progress);
sr.Close();
inStream.Close();
outStream.Position = 0;//Seek(0, SeekOrigin.Begin);
sr = new BinaryReader(outStream);
nbytes = sr.ReadBytes((int)outStream.Length);
sr.Close();
outStream.Close();
}
return(nbytes);
}
int LzmaDecompressBlock(uint packed_size, uint unpacked_size)
{
var decoder = new LZMA.Decoder();
var props = m_input.ReadBytes(5);
decoder.SetDecoderProperties(props);
var buffer = PrepareBuffer(unpacked_size);
using (var output = new MemoryStream(buffer))
{
decoder.Code(m_input, output, packed_size - 5, unpacked_size, null);
return((int)output.Length);
}
}
public static byte[] Decompress(byte[] inbuf)
{
SevenZip.Compression.LZMA.Decoder coder = new SevenZip.Compression.LZMA.Decoder();
byte[] prop = new byte[5];
Array.Copy(inbuf, prop, 5);
coder.SetDecoderProperties(prop);
MemoryStream msInp = new MemoryStream(inbuf);
msInp.Seek(5, SeekOrigin.Current);
MemoryStream msOut = new MemoryStream();
coder.Code(msInp, msOut, -1, -1, null);
return(msOut.ToArray());
}
// 解压文件
static public void UnCompressStream(Stream input, Stream output)
{
// Read the decoder properties
byte[] properties = new byte[5];
input.Read(properties, 0, 5);
// Read in the decompress file size.
byte[] fileLengthBytes = new byte[8];
input.Read(fileLengthBytes, 0, 8);
long fileLength = System.BitConverter.ToInt64(fileLengthBytes, 0);
SevenZip.Compression.LZMA.Decoder coder = new SevenZip.Compression.LZMA.Decoder();
coder.SetDecoderProperties(properties);
coder.Code(input, output, input.Length, fileLength, null);
output.Flush();
}
private static byte[] LZMADecode(Stream inStream, int compressedSize, int uncompressedSize)
{
var decoder = new LZMA.Decoder();
var properties = new byte[5];
if (inStream.Read(properties, 0, 5) != 5)
{
throw new ArgumentException("Input data is too short.");
}
decoder.SetDecoderProperties(properties);
using (var outLZMA = new MemoryStream())
{
decoder.Code(inStream, outLZMA, compressedSize, uncompressedSize, null);
return(outLZMA.ToArray());
}
}
public static void DecompressMemory(MemoryStream input, out MemoryStream output)
{
byte[] properties = new byte[5];
input.Read(properties, 0, 5);
byte[] fileLengthBytes = new byte[4];
input.Read(fileLengthBytes, 0, 4);
int fileLength = System.BitConverter.ToInt32(fileLengthBytes, 0);
output = new MemoryStream();
SevenZip.Compression.LZMA.Decoder coder = new SevenZip.Compression.LZMA.Decoder();
coder.SetDecoderProperties(properties);
coder.Code(input, output, input.Length, fileLength, null);
output.Flush();
}
public static byte[] Decompress(byte[] data)
{
using (MemoryStream instrm = new MemoryStream (data))
using (MemoryStream outstrm = new MemoryStream ()) {
Decoder decoder = new Decoder ();
byte[] tmp = new byte[5];
instrm.Read (tmp, 0, 5);
decoder.SetDecoderProperties (tmp);
instrm.Read (tmp, 0, 4);
int outsize = (tmp[0] << 24) | (tmp[1] << 16) | (tmp[2] << 8) | tmp[3];
decoder.Code (instrm, outstrm, data.Length - 9, outsize, null);
outstrm.Close ();
return outstrm.ToArray ();
}
}
public uint Decode(Decoder rangeDecoder, uint posState)
{
if (m_Choice.Decode(rangeDecoder) == 0)
return m_LowCoder[posState].Decode(rangeDecoder);
else
{
uint symbol = LZMABase.kNumLowLenSymbols;
if (m_Choice2.Decode(rangeDecoder) == 0)
symbol += m_MidCoder[posState].Decode(rangeDecoder);
else
{
symbol += LZMABase.kNumMidLenSymbols;
symbol += m_HighCoder.Decode(rangeDecoder);
}
return symbol;
}
}
public static byte[] DecompressFileLZMA(byte[] inBytes)
{
SevenZip.Compression.LZMA.Decoder coder = new SevenZip.Compression.LZMA.Decoder();
var input = new MemoryStream(inBytes);
var output = new MemoryStream();
byte[] ret = null;
try
{
// Read the decoder properties
byte[] properties = new byte[5];
input.Read(properties, 0, 5);
// Read in the decompress file size.
byte[] fileLengthBytes = new byte[8];
input.Read(fileLengthBytes, 0, 8);
long fileLength = BitConverter.ToInt64(fileLengthBytes, 0);
// Decompress the file.
coder.SetDecoderProperties(properties);
coder.Code(input, output, input.Length, fileLength, null);
output.Flush();
ret = output.GetBuffer();
}
catch
{
throw;
}
finally
{
output.Close();
output.Dispose();
input.Close();
input.Dispose();
}
return ret;
}
public byte DecodeWithMatchByte(Decoder rangeDecoder, byte matchByte)
{
uint symbol = 1;
do
{
uint matchBit = (uint)(matchByte >> 7) & 1;
matchByte <<= 1;
uint bit = m_Decoders[((1 + matchBit) << 8) + symbol].Decode(rangeDecoder);
symbol = (symbol << 1) | bit;
if (matchBit != bit)
{
while (symbol < 0x100)
symbol = (symbol << 1) | m_Decoders[symbol].Decode(rangeDecoder);
break;
}
}
while (symbol < 0x100);
return (byte)symbol;
}
public void uncompress(Stream inStream, Stream outStream)
{
var coder = new lzma.Decoder();
// Read the decoder properties
byte[] properties = new byte[5];
inStream.Read(properties, 0, 5);
// Read in the decompress file size.
byte[] fileLengthBytes = new byte[8];
inStream.Read(fileLengthBytes, 0, 8);
long fileLength = BitConverter.ToInt64(fileLengthBytes, 0);
// Decompress the file.
coder.SetDecoderProperties(properties);
coder.Code(inStream, outStream, inStream.Length, fileLength, null);
}
public static void DecompressFileLZMA(string inFile, string outFile)
{
SevenZip.Compression.LZMA.Decoder coder = new SevenZip.Compression.LZMA.Decoder();
FileStream input = new FileStream(inFile, FileMode.Open);
FileStream output = new FileStream(outFile, FileMode.Create);
// Read the decoder properties
byte[] properties = new byte[5];
input.Read(properties, 0, 5);
// Read in the decompress file size.
byte[] fileLengthBytes = new byte[8];
input.Read(fileLengthBytes, 0, 8);
long fileLength = System.BitConverter.ToInt64(fileLengthBytes, 0);
coder.SetDecoderProperties(properties);
coder.Code(input, output, input.Length, fileLength, null);
output.Flush();
output.Close();
}
public static byte[] Decompress(byte[] inputBytes, long decompressedSize)
{
var compressed = new MemoryStream(inputBytes);
var decoder = new Decoder();
var properties2 = new byte[5];
if (compressed.Read(properties2, 0, 5) != 5)
{
throw (new Exception("input .lzma is too short"));
}
decoder.SetDecoderProperties(properties2);
var compressedSize = compressed.Length - compressed.Position;
var decompressed = new MemoryStream();
decoder.Code(compressed, decompressed, compressedSize, decompressedSize, null);
if (decompressed.Length != decompressedSize)
throw new Exception("Decompression Error");
return decompressed.ToArray();
}
public byte[] readCompressedData(int size)
{
Decoder decoder = new Decoder ();
MemoryStream newOutStream = new MemoryStream ();
int compressedSize = readLittleInt ();
byte[] properties = ReadBytes (5);
if (properties.Length == 0) {
throw new IOException ("End of file reached while parsing the file!");
}
long accPos = BaseStream.Position;
decoder.SetDecoderProperties (properties);
decoder.Code (BaseStream, newOutStream, compressedSize, size, null);
BaseStream.Position = accPos + compressedSize;
return newOutStream.ToArray ();
}
public static byte[] Decompress(Stream inStream)
{
MemoryStream outStream = new MemoryStream();
byte[] buffer = new byte[5];
if (inStream.Read(buffer, 0, 5) != 5)
{
throw new Exception("Err");
}
Decoder decoder = new Decoder();
decoder.SetDecoderProperties(buffer);
long outSize = 0L;
for (int i = 0; i < 8; i++)
{
int num3 = inStream.ReadByte();
if (num3 < 0)
{
throw new Exception("Err");
}
outSize |= ((byte)num3) << (8 * i);
}
long inSize = inStream.Length - inStream.Position;
decoder.Code(inStream, outStream, inSize, outSize, null);
return outStream.ToArray();
}
private static void Decompress(Stream inputStream, Stream outputStream)
{
SevenZip.Compression.LZMA.Decoder coder = new SevenZip.Compression.LZMA.Decoder();
// Read decoder properties
byte[] properties = new byte[5]; // 5 comes from kPropSize (LzmaEncoder.cs)
inputStream.Read(properties, 0, 5);
// Read the size of the output stream.
byte [] fileLengthBytes = new byte[8];
inputStream.Read(fileLengthBytes, 0, 8);
long fileLength = BitConverter.ToInt64(fileLengthBytes, 0);
// Decode
coder.SetDecoderProperties(properties);
coder.Code(inputStream, outputStream, inputStream.Length, fileLength, null);
outputStream.Flush();
outputStream.Close();
}
public static bool Decompress(string FileName, out byte[] outputBytes)
{
outputBytes = null;
if (!File.Exists(FileName))
return false;
using(FileStream newInStream = File.OpenRead(FileName)) {
SevenZip.Compression.LZMA.Decoder decoder = new SevenZip.Compression.LZMA.Decoder();
newInStream.Seek(0, 0);
MemoryStream newOutStream = new MemoryStream();
byte[] properties2 = new byte[5];
if (newInStream.Read(properties2, 0, 5) != 5)
throw (new Exception("input .lzma is too short"));
long outSize = 0;
for (int i = 0; i < 8; i++) {
int v = newInStream.ReadByte();
if (v < 0)
throw (new Exception("Can't Read 1"));
outSize |= ((long)(byte)v) << (8 * i);
}
decoder.SetDecoderProperties(properties2);
long compressedSize = newInStream.Length - newInStream.Position;
decoder.Code(newInStream, newOutStream, compressedSize, outSize, null);
outputBytes = newOutStream.ToArray();
}
return true;
}
static SevenZipHelper() {
encoder = new Encoder();
encoder.SetCoderProperties(propIDs, properties);
decoder = new Decoder();
}
public void Read(System.IO.Stream instream)
{
{//Header
byte[] b = new byte[28];
instream.Read(b, 0, 28);
header.fourcc = BitConverter.ToUInt32(b, 0);
int fourcc = MakeFourCC('K', 'F', 'N', 'T');
header.version = BitConverter.ToUInt32(b, 4);
header.start_ptr = BitConverter.ToUInt32(b, 8);
header.validate_chars = BitConverter.ToUInt32(b, 12);
header.non_empty_chars = BitConverter.ToUInt32(b, 16);
header.char_size = BitConverter.ToUInt32(b, 20);
header._base = BitConverter.ToInt16(b, 24);
header.scale = BitConverter.ToInt16(b, 25);
}
{
//instream.Seek(header.start_ptr, System.IO.SeekOrigin.Begin);
Dictionary<Int32, Int32> nedata = new Dictionary<int, int>();
for (int i = 0; i < header.non_empty_chars; i++)
{
byte[] buf = new byte[8];
instream.Read(buf, 0, 8);
int l = BitConverter.ToInt32(buf, 0);
int r = BitConverter.ToInt32(buf, 4);
chardata[l] = new KeyValuePair<int, uint>(r, 0);
//nedata[l] = r;
}
Dictionary<Int32, UInt32> vdata = new Dictionary<int, UInt32>();
for (int i = 0; i < header.validate_chars; i++)
{
byte[] buf = new byte[8];
instream.Read(buf, 0, 8);
int l = BitConverter.ToInt32(buf, 0);
uint r = BitConverter.ToUInt32(buf, 4);
if (chardata.ContainsKey(l))
{
chardata[l] = new KeyValuePair<int, uint>(chardata[l].Key, r);
}
else
{
chardata[l] = new KeyValuePair<int, uint>(-1, r);
}
//vdata[l] = r;
}
}
{//FontInfo
fontinfo = new List<font_info>();
for (int i = 0; i < header.non_empty_chars; i++)
{
byte[] buf = new byte[8];
instream.Read(buf, 0, 8);
font_info info;
info.top = BitConverter.ToInt16(buf, 0);
info.left = BitConverter.ToInt16(buf, 2);
info.width = BitConverter.ToUInt16(buf, 4);
info.height = BitConverter.ToUInt16(buf, 6);
fontinfo.Add(info);
}
}
{//FontData
float timer = 0;
fontdata = new List<byte[]>();
for (int i = 0; i < header.non_empty_chars; i++)
{
DateTime t = DateTime.Now;
byte[] buf = new byte[8];
instream.Read(buf, 0, 8);
ulong len = BitConverter.ToUInt64(buf, 0);
byte[] data = new byte[len];
instream.Read(data, 0, (int)len);
System.IO.MemoryStream sin = new System.IO.MemoryStream(data);
System.IO.MemoryStream sout = new System.IO.MemoryStream();
SevenZip.Compression.LZMA.Decoder decoder = new SevenZip.Compression.LZMA.Decoder();
byte[] properties = new byte[5];
if (sin.Read(properties, 0, 5) != 5)
throw (new Exception("input .lzma is too short"));
decoder.SetDecoderProperties(properties);
//sin.Read(buf, 0,2);
int len2 = (int)(header.char_size * header.char_size);
decoder.Code(sin, sout, (long)len - 5, (int)len2, null);
sout.Position = 0;
byte[] decodedata = new byte[len2];
sout.Read(decodedata, 0, len2);
fontdata.Add(decodedata);
DateTime t2 = DateTime.Now;
float delta = (float)(t2 - t).TotalSeconds;
timer += delta;
}
Debug.Log("Load time total:" + timer + " per:" + (timer / header.non_empty_chars));
}
}
private void FileDownloaded(Uri uri, byte[] raw, string error, object decompressionTask)
{
SetTaskProgressBar_ThreadSafe(100, "");
if (error != null)
{
if (decompressionTask != null)
{
CompressionTask task = decompressionTask as CompressionTask;
if (task != null)
task.done = true;
}
IncrementPatchProgressBar_ThreadSafe(true);
Log_ThreadSafe("\tFailed to download " + uri.ToString() + ": " + error);
return;
}
if (decompressionTask != null)
{
string file = "?";
CompressionTask task = null;
Stream inStream = null;
Stream outStream = null;
try
{
task = (CompressionTask)decompressionTask;
file = task.dl.destination.Name;
task.dl.destination.Directory.Create();
inStream = task.dl.tempCompressed.OpenRead();
outStream = task.dl.destination.OpenWrite();
byte[] properties = new byte[5];
if (inStream.Read(properties, 0, 5) != 5)
throw (new Exception("input .lzma is too short"));
LZMA.Decoder decoder = new LZMA.Decoder();
decoder.SetDecoderProperties(properties);
long outSize = 0;
for (int i = 0; i < 8; i++)
{
int v = inStream.ReadByte();
if (v < 0)
throw (new Exception("Can't Read 1"));
outSize |= ((long)(byte)v) << (8 * i);
}
long compressedSize = inStream.Length - inStream.Position;
decoder.Code(inStream, outStream, compressedSize, outSize, null);
task.done = true;
}
catch (Exception e)
{
if (task != null)
task.done = true;
IncrementPatchProgressBar_ThreadSafe(true);
Log_ThreadSafe("\tFailed during decompression of " + file + ": " + e.ToString());
}
finally
{
if (inStream != null)
inStream.Close();
if (outStream != null)
outStream.Close();
try
{
if (task != null)
task.dl.tempCompressed.Delete();
}
catch (Exception) { }
}
}
IncrementPatchProgressBar_ThreadSafe(false);
}
public static void ExpandNatives()
{
Decoder decoder = new Decoder();
MemoryStream output = new MemoryStream();
using (Stream input = File.Open(Path.Combine(DotMinecraft, "bin/" + GetNativeArchiveFile()), FileMode.Open))
{
Decoder coder = new Decoder();
byte[] properties = new byte[5];
input.Read(properties, 0, 5);
// Read in the decompress file size.
byte[] fileLengthBytes = new byte[8];
input.Read(fileLengthBytes, 0, 8);
long fileLength = BitConverter.ToInt64(fileLengthBytes, 0);
coder.SetDecoderProperties(properties);
coder.Code(input, output, input.Length, fileLength, null);
}
output.Seek(0, SeekOrigin.Begin);
FastZip fastZip = new FastZip();
fastZip.ExtractZip(output, Path.Combine(DotMinecraft, "bin/natives"), FastZip.Overwrite.Always, null, "", "", false, false);
File.Delete(Path.Combine(DotMinecraft, "bin/" + GetNativeArchiveFile()));
}
/// <summary>
/// Decompress the specified stream (C# inside)
/// </summary>
/// <param name="inStream">The source compressed stream</param>
/// <param name="outStream">The destination uncompressed stream</param>
/// <param name="inLength">The length of compressed data (null for inStream.Length)</param>
/// <param name="codeProgressEvent">The event for handling the code progress</param>
public static void DecompressStream(Stream inStream, Stream outStream, int? inLength,
EventHandler<ProgressEventArgs> codeProgressEvent)
{
if (!inStream.CanRead || !outStream.CanWrite)
{
throw new ArgumentException("The specified streams are invalid.");
}
var decoder = new Decoder();
long outSize, inSize = (inLength.HasValue ? inLength.Value : inStream.Length) - inStream.Position;
decoder.SetDecoderProperties(GetLzmaProperties(inStream, out outSize));
decoder.Code(
inStream, outStream, inSize, outSize,
new LzmaProgressCallback(inSize, codeProgressEvent));
}
/// <summary>
/// Decompress byte array compressed with LZMA algorithm (C# inside)
/// </summary>
/// <param name="data">Byte array to decompress</param>
/// <returns>Decompressed byte array</returns>
public static byte[] ExtractBytes(byte[] data)
{
using (var inStream = new MemoryStream(data))
{
var decoder = new Decoder();
inStream.Seek(0, 0);
using (var outStream = new MemoryStream())
{
long outSize;
decoder.SetDecoderProperties(GetLzmaProperties(inStream, out outSize));
decoder.Code(inStream, outStream, inStream.Length - inStream.Position, outSize, null);
return outStream.ToArray();
}
}
}
public static byte[] Uncompress(byte[] bytes)
{
if (bytes.Length < 5)
{
throw new Exception("LZMA data is too short.");
}
using (MemoryStream input = new MemoryStream(bytes))
{
// read the decoder properties
byte[] properties = new byte[5];
if (input.Read(properties, 0, 5) != 5)
{
throw (new Exception("LZMA data is too short."));
}
long outSize = 0;
if (BitConverter.IsLittleEndian)
{
for (int i = 0; i < 8; i++)
{
int v = input.ReadByte();
if (v < 0)
{
throw (new Exception("Can't Read 1."));
}
outSize |= ((long)v) << (8 * i);
}
}
MemoryStream output = new MemoryStream();
long compressedSize = input.Length - input.Position;
Decoder decoder = new Decoder();
decoder.SetDecoderProperties(properties);
decoder.Code(input, output, compressedSize, outSize, null);
return output.ToArray();
}
}
/// <summary>
/// Decompress LZMA compressed stream into outStream.
/// Remeber to set desirable positions in input and output streams.
/// </summary>
/// <param name="inStream">Input stream</param>
/// <param name="outStream">Output stream</param>
public static void Decompress(Stream inStream, Stream outStream)
{
byte[] properties = new byte[5];
if (inStream.Read(properties, 0, 5) != 5)
throw (new Exception("Input stream is too short."));
Compression.LZMA.Decoder decoder = new Compression.LZMA.Decoder();
decoder.SetDecoderProperties(properties);
var br = new BinaryReader(inStream, Encoding.UTF8);
long decompressedSize = br.ReadInt64();
long compressedSize = br.ReadInt64();
decoder.Code(inStream, outStream, compressedSize, decompressedSize, null);
}
static public int LzmaBenchmark(Int32 numIterations, UInt32 dictionarySize)
{
if (numIterations <= 0)
return 0;
if (dictionarySize < (1 << 18))
{
System.Console.WriteLine("\nError: dictionary size for benchmark must be >= 19 (512 KB)");
return 1;
}
System.Console.Write("\n Compressing Decompressing\n\n");
Compression.LZMA.Encoder encoder = new Compression.LZMA.Encoder();
Compression.LZMA.Decoder decoder = new Compression.LZMA.Decoder();
CoderPropID[] propIDs =
{
CoderPropID.DictionarySize,
};
object[] properties =
{
(Int32)(dictionarySize),
};
UInt32 kBufferSize = dictionarySize + kAdditionalSize;
UInt32 kCompressedBufferSize = (kBufferSize / 2) + kCompressedAdditionalSize;
encoder.SetCoderProperties(propIDs, properties);
System.IO.MemoryStream propStream = new System.IO.MemoryStream();
encoder.WriteCoderProperties(propStream);
byte[] propArray = propStream.ToArray();
CBenchRandomGenerator rg = new CBenchRandomGenerator();
rg.Set(kBufferSize);
rg.Generate();
CRC crc = new CRC();
crc.Init();
crc.Update(rg.Buffer, 0, rg.BufferSize);
CProgressInfo progressInfo = new CProgressInfo();
progressInfo.ApprovedStart = dictionarySize;
UInt64 totalBenchSize = 0;
UInt64 totalEncodeTime = 0;
UInt64 totalDecodeTime = 0;
UInt64 totalCompressedSize = 0;
MemoryStream inStream = new MemoryStream(rg.Buffer, 0, (int)rg.BufferSize);
MemoryStream compressedStream = new MemoryStream((int)kCompressedBufferSize);
CrcOutStream crcOutStream = new CrcOutStream();
for (Int32 i = 0; i < numIterations; i++)
{
progressInfo.Init();
inStream.Seek(0, SeekOrigin.Begin);
compressedStream.Seek(0, SeekOrigin.Begin);
encoder.Code(inStream, compressedStream, -1, -1, progressInfo);
TimeSpan sp2 = DateTime.UtcNow - progressInfo.Time;
UInt64 encodeTime = (UInt64)sp2.Ticks;
long compressedSize = compressedStream.Position;
if (progressInfo.InSize == 0)
throw (new Exception("Internal ERROR 1282"));
UInt64 decodeTime = 0;
for (int j = 0; j < 2; j++)
{
compressedStream.Seek(0, SeekOrigin.Begin);
crcOutStream.Init();
decoder.SetDecoderProperties(propArray);
UInt64 outSize = kBufferSize;
System.DateTime startTime = DateTime.UtcNow;
decoder.Code(compressedStream, crcOutStream, 0, (Int64)outSize, null);
TimeSpan sp = (DateTime.UtcNow - startTime);
decodeTime = (ulong)sp.Ticks;
if (crcOutStream.GetDigest() != crc.GetDigest())
throw (new Exception("CRC Error"));
}
UInt64 benchSize = kBufferSize - (UInt64)progressInfo.InSize;
PrintResults(dictionarySize, encodeTime, benchSize, false, 0);
System.Console.Write(" ");
PrintResults(dictionarySize, decodeTime, kBufferSize, true, (ulong)compressedSize);
System.Console.WriteLine();
totalBenchSize += benchSize;
totalEncodeTime += encodeTime;
totalDecodeTime += decodeTime;
totalCompressedSize += (ulong)compressedSize;
}
System.Console.WriteLine("---------------------------------------------------");
PrintResults(dictionarySize, totalEncodeTime, totalBenchSize, false, 0);
System.Console.Write(" ");
PrintResults(dictionarySize, totalDecodeTime,
kBufferSize * (UInt64)numIterations, true, totalCompressedSize);
System.Console.WriteLine(" Average");
return 0;
}
static int Main2(string[] args)
{
System.Console.WriteLine("\nLZMA# 4.61 2008-11-23\n");
if (args.Length == 0)
{
PrintHelp();
return 0;
}
SwitchForm[] kSwitchForms = new SwitchForm[13];
int sw = 0;
kSwitchForms[sw++] = new SwitchForm("?", SwitchType.Simple, false);
kSwitchForms[sw++] = new SwitchForm("H", SwitchType.Simple, false);
kSwitchForms[sw++] = new SwitchForm("A", SwitchType.UnLimitedPostString, false, 1);
kSwitchForms[sw++] = new SwitchForm("D", SwitchType.UnLimitedPostString, false, 1);
kSwitchForms[sw++] = new SwitchForm("FB", SwitchType.UnLimitedPostString, false, 1);
kSwitchForms[sw++] = new SwitchForm("LC", SwitchType.UnLimitedPostString, false, 1);
kSwitchForms[sw++] = new SwitchForm("LP", SwitchType.UnLimitedPostString, false, 1);
kSwitchForms[sw++] = new SwitchForm("PB", SwitchType.UnLimitedPostString, false, 1);
kSwitchForms[sw++] = new SwitchForm("MF", SwitchType.UnLimitedPostString, false, 1);
kSwitchForms[sw++] = new SwitchForm("EOS", SwitchType.Simple, false);
kSwitchForms[sw++] = new SwitchForm("SI", SwitchType.Simple, false);
kSwitchForms[sw++] = new SwitchForm("SO", SwitchType.Simple, false);
kSwitchForms[sw++] = new SwitchForm("T", SwitchType.UnLimitedPostString, false, 1);
Parser parser = new Parser(sw);
try
{
parser.ParseStrings(kSwitchForms, args);
}
catch
{
return IncorrectCommand();
}
if (parser[(int)Key.Help1].ThereIs || parser[(int)Key.Help2].ThereIs)
{
PrintHelp();
return 0;
}
System.Collections.ArrayList nonSwitchStrings = parser.NonSwitchStrings;
int paramIndex = 0;
if (paramIndex >= nonSwitchStrings.Count)
return IncorrectCommand();
string command = (string)nonSwitchStrings[paramIndex++];
command = command.ToLower();
bool dictionaryIsDefined = false;
Int32 dictionary = 1 << 21;
if (parser[(int)Key.Dictionary].ThereIs)
{
Int32 dicLog;
if (!GetNumber((string)parser[(int)Key.Dictionary].PostStrings[0], out dicLog))
IncorrectCommand();
dictionary = (Int32)1 << dicLog;
dictionaryIsDefined = true;
}
string mf = "bt4";
if (parser[(int)Key.MatchFinder].ThereIs)
mf = (string)parser[(int)Key.MatchFinder].PostStrings[0];
mf = mf.ToLower();
if (command == "b")
{
const Int32 kNumDefaultItereations = 10;
Int32 numIterations = kNumDefaultItereations;
if (paramIndex < nonSwitchStrings.Count)
if (!GetNumber((string)nonSwitchStrings[paramIndex++], out numIterations))
numIterations = kNumDefaultItereations;
return LzmaBench.LzmaBenchmark(numIterations, (UInt32)dictionary);
}
string train = "";
if (parser[(int)Key.Train].ThereIs)
train = (string)parser[(int)Key.Train].PostStrings[0];
bool encodeMode = false;
if (command == "e")
encodeMode = true;
else if (command == "d")
encodeMode = false;
else
IncorrectCommand();
bool stdInMode = parser[(int)Key.StdIn].ThereIs;
bool stdOutMode = parser[(int)Key.StdOut].ThereIs;
Stream inStream = null;
if (stdInMode)
{
throw (new Exception("Not implemeted"));
}
else
{
if (paramIndex >= nonSwitchStrings.Count)
IncorrectCommand();
string inputName = (string)nonSwitchStrings[paramIndex++];
inStream = new FileStream(inputName, FileMode.Open, FileAccess.Read);
}
FileStream outStream = null;
if (stdOutMode)
{
throw (new Exception("Not implemeted"));
}
else
{
if (paramIndex >= nonSwitchStrings.Count)
IncorrectCommand();
string outputName = (string)nonSwitchStrings[paramIndex++];
outStream = new FileStream(outputName, FileMode.Create, FileAccess.Write);
}
FileStream trainStream = null;
if (train.Length != 0)
trainStream = new FileStream(train, FileMode.Open, FileAccess.Read);
if (encodeMode)
{
if (!dictionaryIsDefined)
dictionary = 1 << 23;
Int32 posStateBits = 2;
Int32 litContextBits = 3; // for normal files
// UInt32 litContextBits = 0; // for 32-bit data
Int32 litPosBits = 0;
// UInt32 litPosBits = 2; // for 32-bit data
Int32 algorithm = 2;
Int32 numFastBytes = 128;
bool eos = parser[(int)Key.EOS].ThereIs || stdInMode;
if (parser[(int)Key.Mode].ThereIs)
if (!GetNumber((string)parser[(int)Key.Mode].PostStrings[0], out algorithm))
IncorrectCommand();
if (parser[(int)Key.FastBytes].ThereIs)
if (!GetNumber((string)parser[(int)Key.FastBytes].PostStrings[0], out numFastBytes))
IncorrectCommand();
if (parser[(int)Key.LitContext].ThereIs)
if (!GetNumber((string)parser[(int)Key.LitContext].PostStrings[0], out litContextBits))
IncorrectCommand();
if (parser[(int)Key.LitPos].ThereIs)
if (!GetNumber((string)parser[(int)Key.LitPos].PostStrings[0], out litPosBits))
IncorrectCommand();
if (parser[(int)Key.PosBits].ThereIs)
if (!GetNumber((string)parser[(int)Key.PosBits].PostStrings[0], out posStateBits))
IncorrectCommand();
CoderPropID[] propIDs =
{
CoderPropID.DictionarySize,
CoderPropID.PosStateBits,
CoderPropID.LitContextBits,
CoderPropID.LitPosBits,
CoderPropID.Algorithm,
CoderPropID.NumFastBytes,
CoderPropID.MatchFinder,
CoderPropID.EndMarker
};
object[] properties =
{
(Int32)(dictionary),
(Int32)(posStateBits),
(Int32)(litContextBits),
(Int32)(litPosBits),
(Int32)(algorithm),
(Int32)(numFastBytes),
mf,
eos
};
Compression.LZMA.Encoder encoder = new Compression.LZMA.Encoder();
encoder.SetCoderProperties(propIDs, properties);
encoder.WriteCoderProperties(outStream);
Int64 fileSize;
if (eos || stdInMode)
fileSize = -1;
else
fileSize = inStream.Length;
for (int i = 0; i < 8; i++)
outStream.WriteByte((Byte)(fileSize >> (8 * i)));
if (trainStream != null)
{
CDoubleStream doubleStream = new CDoubleStream();
doubleStream.s1 = trainStream;
doubleStream.s2 = inStream;
doubleStream.fileIndex = 0;
inStream = doubleStream;
long trainFileSize = trainStream.Length;
doubleStream.skipSize = 0;
if (trainFileSize > dictionary)
doubleStream.skipSize = trainFileSize - dictionary;
trainStream.Seek(doubleStream.skipSize, SeekOrigin.Begin);
encoder.SetTrainSize((uint)(trainFileSize - doubleStream.skipSize));
}
encoder.Code(inStream, outStream, -1, -1, null);
}
else if (command == "d")
{
byte[] properties = new byte[5];
if (inStream.Read(properties, 0, 5) != 5)
throw (new Exception("input .lzma is too short"));
Compression.LZMA.Decoder decoder = new Compression.LZMA.Decoder();
decoder.SetDecoderProperties(properties);
if (trainStream != null)
{
if (!decoder.Train(trainStream))
throw (new Exception("can't train"));
}
long outSize = 0;
for (int i = 0; i < 8; i++)
{
int v = inStream.ReadByte();
if (v < 0)
throw (new Exception("Can't Read 1"));
outSize |= ((long)(byte)v) << (8 * i);
}
long compressedSize = inStream.Length - inStream.Position;
decoder.Code(inStream, outStream, compressedSize, outSize, null);
}
else
throw (new Exception("Command Error"));
return 0;
}
/// <summary>Uncompresses a stream of LZMA-compressed data into a memory stream</summary>
/// <param name="source">Source stream containing the LZMA-compressed data</param>
/// <param name="compressedLength">Length of the compressed data</param>
/// <param name="uncompressedLength">Length the uncompressed data will have</param>
/// <returns>A memory stream containing the uncompressed data</returns>
private Stream uncompress(Stream source, int compressedLength, int uncompressedLength) {
BinaryReader reader = new BinaryReader(source);
// Build a memory chunk we can uncompress into
MemoryStream uncompressedMemory = new MemoryStream(uncompressedLength);
// Set up the LZMA decoder and decode the compressed asset into the memory chunk
Decoder decoder = new Decoder();
decoder.SetDecoderProperties(reader.ReadBytes(5));
decoder.Code(
source, uncompressedMemory,
compressedLength - 5, uncompressedLength,
null
);
// Done, set the file pointer to the beginning of the memory chunk and return it
uncompressedMemory.Position = 0;
return uncompressedMemory;
}
public static byte[] Decompress(byte[] inputBytes)
{
MemoryStream newInStream = new MemoryStream(inputBytes);
SevenZip.Compression.LZMA.Decoder decoder = new SevenZip.Compression.LZMA.Decoder();
newInStream.Seek(0, 0);
MemoryStream newOutStream = new MemoryStream();
byte[] properties2 = new byte[5];
if (newInStream.Read(properties2, 0, 5) != 5)
{
throw (new Exception("input .lzma is too short"));
}
long outSize = 0;
for (int i = 0; i < 8; i++)
{
int v = newInStream.ReadByte();
if (v < 0)
{
throw (new Exception("Can't Read 1"));
}
outSize |= ((long)(byte)v) << (8 * i);
}
decoder.SetDecoderProperties(properties2);
long compressedSize = newInStream.Length - newInStream.Position;
decoder.Code(newInStream, newOutStream, compressedSize, outSize, null);
byte[] b = newOutStream.ToArray();
return(b);
}
