deflate

问题 I have the following piece of code: MemoryStream resultStream = new MemoryStream(); string users = ""//Really long string goes here BinaryFormatter bFormatter = new BinaryFormatter(); using (MemoryStream assignedUsersStream = new MemoryStream()) { bFormatter.Serialize(assignedUsersStream, users); assignedUsersStream.Position = 0; using (var compressionStream = new DeflateStream(resultStream, CompressionLevel.Optimal)) { assignedUsersStream.CopyTo(compressionStream); Console.WriteLine(

问题 does anyone know how can I achieve java's Deflater.deflate() functionality in .NET so it would be understandable for java's Infalter.inflate() method? regards, Rafal 回答1: I have used #zipLib. It is pretty straight forward. Taken from their site: #ziplib (SharpZipLib, formerly NZipLib) is a Zip, GZip, Tar and BZip2 library written entirely in C# for the .NET platform. It is implemented as an assembly (installable in the GAC), and thus can easily be incorporated into other projects (in any .NET

问题 I'm trying to figure out how the best way to easily send HTTP/HTTPS requests and to handle gzip/deflate compressed responses along with cookies. The best I found was https://github.com/mikeal/request which handles everything except compression. Is there a module or method that will do everything I ask? If not, can I combine request and zlib in some manner? I tried to combine zlib and http.ServerRequest, and it failed miserably. Thanks! 回答1: Note: as of 2019, request has gzip decompression

问题 I'm looking for a command line wrapper for the DEFLATE algorithm. I have a file (git blob) that is compressed using DEFLATE, and I want to uncompress it. The gzip command does not seem to have an option to directly use the DEFLATE algorithm, rather than the gzip format. Ideally I'm looking for a standard Unix/Linux tool that can do this. edit: This is the output I get when trying to use gzip for my problem: $ cat .git/objects/c0/fb67ab3fda7909000da003f4b2ce50a53f43e7 | gunzip gzip: stdin: not

问题 What advantages do either method offer for html, css and javascript files served by a LAMP server. Are there better alternatives? The server provides information to a map application using Json, so a high volume of small files. See also Is there any performance hit involved in choosing gzip over deflate for http compression? 回答1: Why use deflate instead of gzip for text files served by Apache? The simple answer is don't . RFC 2616 defines deflate as: deflate The "zlib" format defined in RFC

问题 This question continues the discussion started here. I found out that the HTTP response body can't be unmarshaled into JSON object because of deflate compression of the latter. Now I wonder how can I perform decompression with Golang. I will appreciate anyone who can show the errors in my code. Input data I've dumped the HTTP response body into the 'test' file. Here is it: $ cat test x��PAN�0� ;��NtJ�FӮdU�|"oVR�C%�f�����Z.�^Hs�dW뮑�'��DH�S�SFVC����r)G,�����<���z}�x_g�+�2��sl�r/�Oy>��J3\�G�9��

问题 I would like to deflate a small block of memory (<= 16 KiB) using zlib. The output is stored in a block of memory as well. No disk or database access here. According to the documentation, I should call deflate() repeatedly until the whole input is deflated. In between, I have to increase the size of the memory block where the output goes. However, that seems unnecessarily complicated and perhaps even inefficient. As I know the size of the input, can't I predetermine the maximum size needed

问题 I have an opportunity to preset dictionary for deflate compression. It makes sense in my case, because data to be compressed is relatively small 1kb-3kb and I have a large sample of representative examples. Data to be compressed consists of arbitrary sequence of bytes, so tokenization etc. is not a good way to go. Also, data shows a lot of repetition (between data examples), so good dictionary could potentially give very good results. The question is how calculate good dictionary? Is there an

问题 I spent a few days reading zlib (and gzip and deflate) RFC and I can say they are kind of rubbish. Quite some details are missing, so I'm opening this question. I'm trying to parse a zlib data and I need to know some details about the header. First of all, RFC says there will be 2 bytes, CMF and FLG . CMF is divided in 2 4 bits sections. The first one is CM and the second one is CINFO . What are the possible values of CM ? RFC says that 8 means deflate and that 15 is reserved, but what about

问题 I'm trying to decompress data compressed with zlib algorithm in C# using 2 most legitimate libraries compatible with zlib algorithm and I got similar exception thrown. Using DotNetZip: Ionic.Zlib.ZlibException: Bad state (invalid stored block lengths) Using Zlib.Net: inflate: invalid stored block lenghts but using same data as input to zlib-flate command on linux using only default parameters, works great and decompressed without any warnings (output is correct): zlib-flate -uncompress < .