/// <summary>
/// Decompress the given byte array
/// </summary>
/// <param name="gzip">byte array to decompress</param>
/// <returns>decompressed byte array</returns>
public static byte[] Decompress(byte[] gzip)
{
// Create a GZIP stream with decompression mode.
// ... Then create a buffer and write into while reading from the GZIP stream.
using (GZipStream stream = new GZipStream(new MemoryStream(gzip), CompressionMode.Decompress))
{
const int size = 4096;
byte[] buffer = new byte[size];
using (MemoryStream memory = new MemoryStream())
{
int count = 0;
do
{
count = stream.Read(buffer, 0, size);
if (count > 0)
{
memory.Write(buffer, 0, count);
}
}
while (count > 0);
return memory.ToArray();
}
}
}
/// <summary>
/// Uncompress a GZip'ed byte array into a single string.
/// </summary>
///
/// <seealso cref="GZipStream.CompressString(String)"/>
/// <seealso cref="GZipStream.UncompressBuffer(byte[])"/>
///
/// <param name="compressed">
/// A buffer containing GZIP-compressed data.
/// </param>
///
/// <returns>The uncompressed string</returns>
public static String UncompressString(byte[] compressed)
{
using (var input = new MemoryStream(compressed))
{
Stream decompressor = new GZipStream(input, CompressionMode.Decompress);
return ZlibBaseStream.UncompressString(compressed, decompressor);
}
}
/// <summary>
/// Compress a byte array into a new byte array using GZip.
/// </summary>
///
/// <remarks>
/// Uncompress it with <see cref="GZipStream.UncompressBuffer(byte[])"/>.
/// </remarks>
///
/// <seealso cref="GZipStream.CompressString(string)"/>
/// <seealso cref="GZipStream.UncompressBuffer(byte[])"/>
///
/// <param name="b">
/// A buffer to compress.
/// </param>
///
/// <returns>The data in compressed form</returns>
public static byte[] CompressBuffer(byte[] b)
{
using (var ms = new MemoryStream())
{
System.IO.Stream compressor =
new GZipStream( ms, CompressionMode.Compress, CompressionLevel.BestCompression );
ZlibBaseStream.CompressBuffer(b, compressor);
return ms.ToArray();
}
}
/// <summary>
/// Uncompress a GZip'ed byte array into a byte array.
/// </summary>
///
/// <seealso cref="GZipStream.CompressBuffer(byte[])"/>
/// <seealso cref="GZipStream.UncompressString(byte[])"/>
///
/// <param name="compressed">
/// A buffer containing data that has been compressed with GZip.
/// </param>
///
/// <returns>The data in uncompressed form</returns>
public static byte[] UncompressBuffer(byte[] compressed)
{
using (var input = new System.IO.MemoryStream(compressed))
{
System.IO.Stream decompressor =
new GZipStream( input, CompressionMode.Decompress );
return ZlibBaseStream.UncompressBuffer(compressed, decompressor);
}
}
/// <summary>
/// Compress the given byte array
/// </summary>
/// <param name="raw">byte array to compress</param>
/// <returns>compressed byte array</returns>
public static byte[] Compress(byte[] raw)
{
using (MemoryStream memory = new MemoryStream())
{
using (GZipStream gzip = new GZipStream(memory, CompressionMode.Compress, true))
{
gzip.Write(raw, 0, raw.Length);
}
return memory.ToArray();
}
}
/// <summary>
/// Compress the given byte array
/// </summary>
/// <param name="raw">byte array to compress</param>
/// <param name="offset">index to start compress</param>
/// <param name="count">size of given byte</param>
/// <returns>compressed byte array</returns>
public static byte[] Compress(byte[] raw, int offset, int count)
{
using (MemoryStream memory = new MemoryStream())
{
using (GZipStream gzip = new GZipStream(memory, CompressionMode.Compress, true))
{
gzip.Write(raw, offset, count);
}
return memory.ToArray();
}
}
