compression

automatic sms decompression?

okay, pretend you had some means of distributing sms text messages to multiple phones (go ahead, pick any, so many already exist), could you send compressed text messages that were capable of being decompressed by the phone? specifically, could you send more than 160 characters per text message that would NOT require additional software ...

Trying to understand QTCompressionOptionsWindowTest

Hi, I'm trying to build an application that uses QTKit, with some compress options. I saw this example in the apple developer page QTCompressionOptionsWindow that uses a Window for that purpose. in MyController.m line 65 there is a comment: // ******** Compression Options Window ***** // create our window with the media type and se...

Compress all file .js with Google Closure Compiler Application in one File !

Hi everyone, I would like to Compress all my file .js in a same directory in one file with Google Closure Compiler in a command line. For one file it's : java -jar compiler.jar --js test.js --js_output_file final.js But I didn't find in the doc how put my other file at the end of final.js without write over the last compress file ? I w...

Appending to a compressed file using GZipStream

Hi guys, I'm trying to use GZipStream to write some application traces (they tend to grow to huge sizes in production). So in this case i need the ability to open an existing file and append to it using GZipStream. All things seem to work well until we try to decompress the file. It seems that on decompression GZipStream reads only the ...

How do I generate files and then zip/compress with Heroku?

I sort of want to do the reverse of this. Instead of unzipping and adding the collection files to S3 I want to On user's request: generate a bunch of xml files zip the xml files with some images (pre-existing images hosted on s3) download zip Does anybody know agood way of doing this? I think I could manage this no problem on a ...

Append to a compressed stream

I need a solution that allows me to create compressed data files (gzip, zip. tar etc. - any format could work) and then freely append data to them without having to load the whole file in memory and re-compress it (seeking while decompressing would be awesome as well). Anyone has a suggestion on .NET? ...

Moving compressed strings between C++ and PHP with zlib

I'm working on a project where a Windows web server running PHP is communicating over a very slow connection with a back end Linux server running an application written in C++. Because the connection between the two machines is so slow, I'd like to compress the traffic moving between them. I've gotten to where I can compress a string, ...

Need algorithm or help on Quantization of a YUV image bit stream.

package Phase2; import magick.ImageInfo; import magick.MagickImage; import magick.MagickException; import magick.MagickApiException; import magick.ColorspaceType; import java.awt.Dimension; import magick.PixelPacket; public class TASK1 { public static MagickImage scaleColorTable(MagickImage image, int choice) { try ...

Video Compression: What takes longer?

So, I've always wondered, when it comes to compression, if it takes less time to encode a video to a smaller resolution, or a larger one. For the sake of being realistic about the question, let's take an example of a somewhat lossless mov, (maybe mjpeg or prores 422), 29.97 fps, keys set to whatever the compressor wants or 24 if auto is...

What's the name of this algorithm/routine?

I am writing a utility class which converts strings from one alphabet to another, this is useful in situations where you have a target alphabet you wish to use, with a restriction on the number of characters available. For example, if you can use lower case letters and numbers, but only 12 characters its possible to compress a timestamp...

How to use gzip compression in apache for html, css and js files?

Hello When an Apache server supports gzip compression, how can from PHP send a CSS file to the client. Is this using .htaccess or with a library? If is a simple .htaccess line, do provide it! Thanks a lot ...

what Compression Library to use for iPhone Application?

Hello people i am looking for a compression library to use in iphone application, please any guide will be so great. Edit hopefully with AES 256 Encryption And Decryption Methods ...