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Most compression programs compress all files by default. But when archiving a folder containing already compressed files, there is no need to compress them a second time, such as archives, packed setup program, jpg, movies, mp3,....
Are there any compression...
Started by Gzorg on
, 3 posts
by 3 people.
Answer Snippets (Read the full thread at superuser):
I tested.
Even likely) that their size will be reduced if you compress them with WinRAR/7Zip.
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A 398MB directory was only compressed to 393MB using 7Z and Normal ZIP compression. Is this normal? If so, why do people continue to use ZIP on Windows?
Started by Thomas Owens on
, 8 posts
by 8 people.
Answer Snippets (Read the full thread at stackoverflow):
Also because you do not want to lose any data while compressing your files a bigger example, how would you compress a binary string like 0111 0111 0100 0111 ?
Well because we not be able to compress ....
The items to compress.
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This question on archiving PDF's got me wondering -- if I wanted to compress (for archival purposes) lots of files which are essentially small changes made on top of a master template (a letterhead), it seems like huge compression gains can be had with...
Started by Toybuilder on
, 4 posts
by 4 people.
Answer Snippets (Read the full thread at stackoverflow):
Both are applied in sequence, and it's a traditional format in the Unix world .
compress only one file.
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I want to compress a folder using NTFS compression in .NET. I found this post , but it does not work. It throws an exception ("Invalid Parameter").
DirectoryInfo directoryInfo = new DirectoryInfo( destinationDir ); if( ( directoryInfo.Attributes & FileAttributes...
Started by decasteljau on
, 4 posts
by 4 people.
Answer Snippets (Read the full thread at stackoverflow):
Also, note that setting compression on a directory in NTFS does not compress all to compress the entire....
Dir.InvokeMethod("Compress", null, null); uint ret = (uint)(outParams.Properties["ReturnValue"].Value on the directory.
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Using the System.IO.Compression namespaces classes GZIPStream and DeflateStream I successfully can compress and decompress individual files. However, if I pass a directoryname as target for compression I get a security exception. Do I have to (recursively...
Started by Dabblernl on
, 6 posts
by 6 people.
Answer Snippets (Read the full thread at stackoverflow):
This article might help you get started:
How to compress folders and multiple files with GZipStream.
Could, I suppose, use SharpZipLib or similar to tar the files, then compress the resulting tar file.
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I would like to compress a folder and all its sub-folders/files, and email the zip file as an attachment. What would be the best way to achieve this with Python?
Started by Boolean on
, 4 posts
by 4 people.
Answer Snippets (Read the full thread at stackoverflow):
With attachments with the standard smtplib
You can use the zipfile module to compress the file using.
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I'm using gzip with PHP to zip up some log files. My development machine is windows, and as you all know, a windows the path are sometimes separated by a space which makes it difficult because I have to wrap everything in quotes to get to the logs.
I'...
Started by John B on
, 5 posts
by 5 people.
Answer Snippets (Read the full thread at stackoverflow):
You might then need just this:
read data from that file , compress it and write to that file.zip remove that file.
To compress the file in memory then write the data back out to the file.
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I love to mix my sessions with the compressor on the main bus.
When compression is used on the mix bus, how does this relate to compression in the mastering process?
What are does and donts?
Is mix bus compression recommended at all?
Started by gizeh12 on
, 16 posts
by 10 people.
Answer Snippets (Read the full thread at gearslutz):
If you've been mixing into a particular....
But communicate with your ME about it -- several stages of good sounding compression is often a recipe for a pretty good overall sound.
In general, deliver uncompressed mixes & leave that stuff up to the ME .
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I'm implementing Deflate and GZip compression for web content. The .NET Framework DeflateStream performs very well (it doesn't compress that good as SharpZipLib, but it is much faster). Unfortunately it (and all other libs i know) miss a function to write...
Started by Thomas Maierhofer on
, 3 posts
by 3 people.
Answer Snippets (Read the full thread at stackoverflow):
IIRC the #ZipLib allows you to set the compression level, have you tried flushing the stream and dropping the level to 0 and then sending the already compressed data before raising the compression level again?
If you are only looking....
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In honor of the Hutter Prize , what are the top algorithms (and a quick description of each) for text compression?
Note: The intent of this question is to get a description of compression algorithms, not of compression programs.
Started by Brian R. Bondy on
, 3 posts
by 3 people.
Answer Snippets (Read the full thread at stackoverflow):
Prediction by Partial.
It just makes the source easier to compress.
With a predictable algorithm to increase repeated blocks which makes the source easier to compress doesn't actually compress anything.
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