public static System.IO.Stream OpenStream(long fileSize, System.IO.Stream baseStream)
{
int chunkSize;
var stream = ChunkedDecompressionStream.OpenStreamFast(fileSize, baseStream, out chunkSize,
(byte[] data, int offset, int length, int outsize) =>
{
byte[] output = new byte[outsize];
LZ4.LZ4Codec.Decode(data, offset, length, output, 0, outsize, true);
return(output);
});
if (stream != null)
{
return(stream);
}
return(new LZ4ReaderStream(fileSize, chunkSize, baseStream));
}
public static System.IO.Stream OpenStream(long fileSize, System.IO.Stream baseStream)
{
int chunkSize;
var stream = ChunkedDecompressionStream.OpenStreamFast(fileSize, baseStream, out chunkSize,
(byte[] data, int offset, int length, int outsize) =>
{
IntPtr decompressor;
if (!s_Decompressors.TryTake(out decompressor))
{
decompressor = CreateDecompressionStream(WindowBits);
}
byte[] output = new byte[outsize];
unsafe
{
fixed(byte *outptr = output)
fixed(byte *inptr = data)
{
DecompressSetSource(decompressor, (IntPtr)inptr, length);
bool finished;
DecompressData(decompressor, (IntPtr)outptr, outsize, out finished);
if (!finished)
{
DecompressData(decompressor, (IntPtr)outptr, 0, out finished);
}
}
}
decompressor = ResetDecompressionStream(decompressor);
if (decompressor != null)
{
s_Decompressors.Add(decompressor);
}
return(output);
});
if (stream != null)
{
return(stream);
}
return(new LZHAMReaderStream(fileSize, chunkSize, baseStream));
}