/// <summary>
/// Initializes a new instance of the <see cref="SnappyStream"/> class.
/// </summary>
/// <param name="s">The stream.</param>
/// <param name="mode">The compression mode.</param>
/// <param name="leaveOpen">If set to <c>true</c> leaves the stream open when complete.</param>
/// <param name="checksum"><c>true</c> if checksums should be written to the stream </param>
public SnappyStream(Stream s, CompressionMode mode, bool leaveOpen, bool checksum)
{
stream = s;
compressionMode = mode;
leaveStreamOpen = leaveOpen;
writeChecksums = checksum;
if (compressionMode == CompressionMode.Decompress)
{
if (!stream.CanRead)
throw new InvalidOperationException("Trying to decompress and underlying stream not readable.");
decompressor = new SnappyDecompressor();
CheckStreamIdentifier();
CheckStreamHeader();
}
if (compressionMode == CompressionMode.Compress)
{
if (!stream.CanWrite)
throw new InvalidOperationException("Trying to compress and underlying stream is not writable.");
compressor = new SnappyCompressor();
stream.WriteByte(StreamIdentifier);
stream.Write(StreamHeader, 0, StreamHeader.Length);
}
}
public static int GetUncompressedLength(byte[] compressed, int offset = 0)
{
var decompressor = new SnappyDecompressor();
return(decompressor.ReadUncompressedLength(compressed, offset)[0]);
}
public static int GetUncompressedLength(byte[] compressed, int offset = 0)
{
var decompressor = new SnappyDecompressor();
return decompressor.ReadUncompressedLength(compressed, offset)[0];
}
