DeflateStream在解压缩数据时重复字节

Question

我遇到了DeflateStream的问题 - 一些数据被反复写入，直到最后。

以下是代码：

Dim bytesin As Byte() = ... ' An array of compressed bytes
Dim bytesout As Byte()
Dim count As Integer

Using ms As New MemoryStream(bytesin)
    Using ds As New Compression.DeflateStream(ms, Compression.CompressionMode.Decompress)
        Using outputStream As New MemoryStream()
            Dim buffer As Byte() = New Byte(1024) {}
            While InlineAssignHelper(count, ds.Read(buffer, 0, buffer.Length)) > 0
                outputStream.Write(buffer, 0, count)
            End While
            bytesout = outputStream.ToArray
        End Using
    End Using
End Using

Dim fs As FileStream = File.OpenWrite("fws.swf")
fs.Write(bytesout, 0, bytesout.Length)
fs.Flush()
fs.Close()


Private Function InlineAssignHelper(Of T)(ByRef target As T, ByVal value As T) As T
    target = value
    Return value
End Function

你怎么解释这个？

http://i.stack.imgur.com/d2ffF.png

更新

我尝试使用Ionic.Zlib.ZlibStream和Ionic.Zlib.DeflateStream，我得到了同样奇怪的结果。