compression

Reducing jar file size? [duplicate]

由 ╄→гoц情女王★ 提交于 2019-11-30 23:15:12
问题 This question already has answers here : Minimizing jar dependency sizes (3 answers) Closed 3 years ago . Is there a good app to reduce jar file size by eliminating redundant classes/methods/constant pool elements? (i.e. not reachable from a fixed set of entry points, assuming no reflection) I'm tired of pulling in bloated libraries when I'm just using a couple of methods from them. (I'm not talking about small "local" optimizations like making names smaller. I'm thinking more of something

What's the best audio compression library for .NET?

由 怎甘沉沦 提交于 2019-11-30 22:47:15
I'm looking for a good audio compression library for .NET. Anything using MP3 is out (because of the licensing issue). Basically I just need to be able to compress regular WAV audio data into some format, and decompress back to WAV. Preferably the code would be all .NET (C# or VB.NET), but I don't think this is likely. It should either be lossless or relatively lossless (as good as 192 MP3s, preferably), with a compression ratio at least as good as 4:1. I'd prefer a buffer-based API, but a file-based API is OK too. Does anyone know of anything like this? Have you thought about using WMA? If

Compressing multiple files using zlib

由 跟風遠走 提交于 2019-11-30 22:45:34
问题 The below code will compress one file. How can I compress multiple files var gzip = zlib.createGzip(); var fs = require('fs'); var inp = fs.createReadStream('input.txt'); var out = fs.createWriteStream('input.txt.gz'); inp.pipe(gzip).pipe(out); 回答1: Something that you could use: var listOfFiles = ['firstFile.txt', 'secondFile.txt', 'thirdFile.txt']; function compressFile(filename, callback) { var compress = zlib.createGzip(), input = fs.createReadStream(filename), output = fs

Why I should not compress images in HTTP headers?

由 我只是一个虾纸丫 提交于 2019-11-30 22:17:05
问题 I read some articles about HTTP headers compression. Today I installed YSlow and it recommends that I compress the resources (text/html, javascript, css and images). Now I'm reading the documentation for Apache mod_deflate but in the example don't compress images. Should I or should I not compress images in my site? 回答1: Your images should already be compressed - any extra compression won't have any noticeable effect on filesize, but will increase processing time. .png files use DEFLATE

Designing a mobile web server and client for traffic compression

由 江枫思渺然 提交于 2019-11-30 22:08:44
I have been a bit confused on how best to go about this. The thing : I'm creating a j2me mobile app that will send compressed data via HTTP to a web server, which then will uncompress the request, fetch the data, compress it and send back to client. One similar solution to this is: T-Booster The Problem : I'm confused on how to send a compressed http request from the client app, what technology to use for the server and how best to go about implementing it. Assuming the server is handing thousands of requests at a time, what will be the effect on the whole application? Comments are well

HTTP: What is the preferred Accept-Encoding for “gzip,deflate”?

由 那年仲夏 提交于 2019-11-30 20:37:57
This question is regarding the order of precedence for the media-types of the HTTP Header "Accept-Encoding" when all are of equal weight and has been prompted by this comment on my blog. Background: The Accept-Encoding header takes a comma separated list of media-types the browser can accept e.g. gzip,deflate A quality factor can also be specified to give preference to other media-types e.g. in the case of "gzip;q=.8,deflate", deflate is preferred - but is not relevant to this question . NB: A type with a "q=0" means "not acceptable". RFC2616 also states that the "most specific reference" for

Want to enable GZip compression in Weblogic

由 偶尔善良 提交于 2019-11-30 20:23:50
I want to enable GZIP compression for my static file like css styles, javascript which is serving from weblogic server. Can anyone help to how to configure this feature in weblogic server. Go to http://sourceforge.net/projects/pjl-comp-filter/ to download it and update your web.xml file with the following config: <filter> <filter-name>CompressingFilter</filter-name> <filter-class>com.planetj.servlet.filter.compression.CompressingFilter</filter-class> <init-param><param-name>includeContentTypes</param-name><param-value>text/html,text/css,application/x-javascript</param-value></init-param> <init

Does django-compressor work with template inheritance?

由 ∥☆過路亽．° 提交于 2019-11-30 20:01:27
I'm using django-compressor to compress my site's static CSS and Javascript files. Since I serve my site's static assets via Amazon S3, I'm also using django-storages to upload my files to S3. Here's my issue: I'm trying to make a clean base.html template that all my site's other templates can inherit and extend. Here's what it looks like currently: {% load compress %} <html> <head> <!-- test --> {% compress css %} <link rel="stylesheet" type="text/css" media="screen" href="{{ STATIC_URL }}css/styles.css" /> {% endcompress %} {% compress css %} {% block css %}{% endblock %} {% endcompress %} {

Extracting a file with JUnrar

由 时间秒杀一切 提交于 2019-11-30 19:49:06
I asked a question earlier about extracting RAR archives in Java and someone pointed me to JUnrar. The official site is down but it seems to be quite widely used as I found a lot of discussions about it online. Could someone show me how to use JUnrar to extract all the files in an archive? I found a little snippet online but it doesn't seem to work. It shows each item in the archive to be a directory even if it is a file. Archive rar = new Archive(new File("C://Weather_Icons.rar")); FileHeader fh = rar.nextFileHeader(); while(fh != null){ if (fh.isDirectory()) { logger.severe("directory: " +

Can I compress data in JavaScript?

由 流过昼夜 提交于 2019-11-30 19:46:08
I'm using some pretty heavy AJAX with lots of data going from client to server. How can I compress the data (mostly plain text) before sending to the server? And how can I uncompress the data on the server side? Shamoon jSEND seems to do EXACTLY this. Anyone ever use it? Broken link removed: led to spam landing page @ jsend.org The jsolait library has a codec that supports the LZW algorithm (among others, including base64 encoding/decoding). The only thing that makes me a little hesitant is that this library is no longer being actively maintained. EDIT I was able to find a few more
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