A class for compressing and decompressing streams using the Deflate algorithm.

The DeflateStream is a Decorator on a . It adds DEFLATE compression or decompression to any stream.

Using this stream, applications can compress or decompress data via stream Read and Write operations. Either compresssion or decompression can occur through either reading or writing. The compression format used is DEFLATE, which is documented in IETF RFC 1951, "DEFLATE Compressed Data Format Specification version 1.3.".

This class is similar to ZlibStream, except that ZlibStream adds the RFC 1950 - ZLIB framing bytes to a compressed stream when compressing, or expects the RFC1950 framing bytes when decompressing. The DeflateStream does not.

Inheritance: System.IO.Stream
DeflateStream Class Documentation
Exemple #1
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        /// <summary>
        ///   Uncompress a DEFLATE'd byte array into a byte array.
        /// </summary>
        ///
        /// <seealso cref="DeflateStream.CompressBuffer(byte[])">DeflateStream.CompressBuffer(byte[])</seealso>
        /// <seealso cref="DeflateStream.UncompressString(byte[])">DeflateStream.UncompressString(byte[])</seealso>
        /// <seealso cref="GZipStream.UncompressBuffer(byte[])">GZipStream.UncompressBuffer(byte[])</seealso>
        /// <seealso cref="ZlibStream.UncompressBuffer(byte[])">ZlibStream.UncompressBuffer(byte[])</seealso>
        ///
        /// <param name="compressed">
        ///   A buffer containing data that has been compressed with DEFLATE.
        /// </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 DeflateStream( input, CompressionMode.Decompress );

                return ZlibBaseStream.UncompressBuffer(compressed, decompressor);
            }
        }
Exemple #2
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        /// <summary>
        ///   Compress a byte array into a new byte array using DEFLATE.
        /// </summary>
        ///
        /// <remarks>
        ///   Uncompress it with <see cref="DeflateStream.UncompressBuffer(byte[])"/>.
        /// </remarks>
        ///
        /// <seealso cref="DeflateStream.CompressString(string)">DeflateStream.CompressString(string)</seealso>
        /// <seealso cref="DeflateStream.UncompressBuffer(byte[])">DeflateStream.UncompressBuffer(byte[])</seealso>
        /// <seealso cref="GZipStream.CompressBuffer(byte[])">GZipStream.CompressBuffer(byte[])</seealso>
        /// <seealso cref="ZlibStream.CompressBuffer(byte[])">ZlibStream.CompressBuffer(byte[])</seealso>
        ///
        /// <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 System.IO.MemoryStream())
            {
                System.IO.Stream compressor =
                    new DeflateStream( ms, CompressionMode.Compress, CompressionLevel.BestCompression );

                ZlibBaseStream.CompressBuffer(b, compressor);
                return ms.ToArray();
            }
        }