public static CompressResult Compress([NotNull] Stream inputFile, [NotNull] Stream compressFile = null,
int blockSize = 0x100000, Lz4Mode mode = 0, Action <CompressResult> blockCallback = null)
{
long position;
if (inputFile == null)
{
throw new ArgumentNullException(nameof(inputFile));
}
if (compressFile == null)
{
throw new ArgumentNullException(nameof(compressFile));
}
CompressResult result = new CompressResult();
byte[] buffer = new byte[blockSize];
try
{
position = compressFile.Position;
}
catch (Exception)
{
position = -1L;
result.CompressedBytes = -1L;
}
using (Lz4CompressionStream stream = new Lz4CompressionStream(compressFile, 0x100000, mode))
{
goto Label_00E9;
Label_006D:
int num2 = inputFile.Read(buffer, 0, buffer.Length);
if (num2 == 0)
{
return(result);
}
result.Bytes += num2;
stream.Write(buffer, 0, num2);
if (position != -1L)
{
long num3 = compressFile.Position;
result.CompressedBytes += num3 - position;
position = num3;
}
if (blockCallback != null)
{
blockCallback(result);
}
Label_00E9:
goto Label_006D;
}
}
public static CompressResult Compress([NotNull] Stream inputFile, [NotNull] Stream compressFile = null,
int blockSize = 0x100000, Lz4Mode mode = 0, Action<CompressResult> blockCallback = null)
{
long position;
if (inputFile == null)
{
throw new ArgumentNullException("inputFile");
}
if (compressFile == null)
{
throw new ArgumentNullException("compressFile");
}
CompressResult result = new CompressResult();
byte[] buffer = new byte[blockSize];
try
{
position = compressFile.Position;
}
catch (Exception)
{
position = -1L;
result.CompressedBytes = -1L;
}
using (Lz4CompressionStream stream = new Lz4CompressionStream(compressFile, 0x100000, mode))
{
goto Label_00E9;
Label_006D:
int num2 = inputFile.Read(buffer, 0, buffer.Length);
if (num2 == 0)
{
return result;
}
result.Bytes += num2;
stream.Write(buffer, 0, num2);
if (position != -1L)
{
long num3 = compressFile.Position;
result.CompressedBytes += num3 - position;
position = num3;
}
if (blockCallback != null)
{
blockCallback(result);
}
Label_00E9:
goto Label_006D;
}
}
public static CompressResult Decompress([NotNull] Stream compressedFile, [NotNull] Stream outputFile, int bufferSize = 0x100000, Action <CompressResult> blockCallback = null)
{
long position;
if (compressedFile == null)
{
throw new ArgumentNullException(nameof(compressedFile));
}
if (outputFile == null)
{
throw new ArgumentNullException(nameof(outputFile));
}
byte[] buffer = new byte[bufferSize];
CompressResult result = new CompressResult();
try
{
position = compressedFile.Position;
}
catch (Exception)
{
position = -1L;
result.Bytes = -1L;
}
using (Lz4DecompressionStream stream = new Lz4DecompressionStream(compressedFile))
{
int num2;
while ((num2 = stream.Read(buffer, 0, buffer.Length)) > 0)
{
outputFile.Write(buffer, 0, num2);
result.CompressedBytes += num2;
if (position != -1L)
{
long num3 = compressedFile.Position;
result.Bytes += num3 - position;
position = num3;
}
if (blockCallback != null)
{
blockCallback(result);
}
}
}
return(result);
}
public static CompressResult Decompress([NotNull] Stream compressedFile, [NotNull] Stream outputFile, int bufferSize = 0x100000, Action<CompressResult> blockCallback = null)
{
long position;
if (compressedFile == null)
{
throw new ArgumentNullException("compressedFile");
}
if (outputFile == null)
{
throw new ArgumentNullException("outputFile");
}
byte[] buffer = new byte[bufferSize];
CompressResult result = new CompressResult();
try
{
position = compressedFile.Position;
}
catch (Exception)
{
position = -1L;
result.Bytes = -1L;
}
using (Lz4DecompressionStream stream = new Lz4DecompressionStream(compressedFile))
{
int num2;
while ((num2 = stream.Read(buffer, 0, buffer.Length)) > 0)
{
outputFile.Write(buffer, 0, num2);
result.CompressedBytes += num2;
if (position != -1L)
{
long num3 = compressedFile.Position;
result.Bytes += num3 - position;
position = num3;
}
if (blockCallback != null)
{
blockCallback(result);
}
}
}
return result;
}
