Problem with decoding jpeg image RSS

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  hokushin

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  Problem with decoding jpeg image

  Feb 28, 2012 02:36 PM|LINK

  Hello folks!

  I retrieve binary stream from the server like below:
  
  try

  <div>                        {</div> <div>                            receivestr = UTF8Encoding.Unicode.GetString(e.Buffer, e.Offset, e.BytesTransferred);</div> <div>                            </div> <div>                            taillength = ex2.BytesUnknown.Length;</div> <div>                            ex2.BytesUnknown.CopyTo(e.Buffer, 0);</div> <div>                        }</div> <div>                        catch (DecoderFallbackException ex3)</div> <div>                        {</div> <div>                            throw new Exception("Message decode failed.", ex3);</div> <div>                        }</div>

  
  It's a jpeg picture. When I encode the jpeg file via the following website http://www.motobit.com/util/base64-decoder-encoder.asp
  I get a base 64 string that represents the file like so: "/9j/4AAQSkZJRgABAQAAAQABAAD/2w..."

  <div id=":ye">So my object is to extract the completely similar 64 base string from a sequence of bytes. I do it like below: 
  <div> <div></div> <div> <div>byte[] BytesMessageUTF = UTF8Encoding.Unicode.GetBytes(e.Data);</div> <div>string strImagestr = Convert.ToBase64String(BytesMessageUTF);</div> </div> <div></div> <div>So if I set a breakpoint in VS 2010 I'll see that I could extract in many ways similar 64 base string.
  "/f//4AAQSkZJRgABAQAAAQABAAD9/w..."
  The only difference is a couple of header and footer characters. And that's the problem needs to be addressed. Any help will be greatly appreciated.</div> </div> </div>