Recent questions tagged compression

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Im looking for an example of how to decompress a bz2 file. I download the file via a control flow in an ... bz2 file to a specified folder? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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compression - How to unpack xz file with python which contains only data but no filename?

I have a file, which I can decompress under linux using the following command: unxz < file.xz > file.txt ... a file without header information? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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compression - Python bz2 uncompressed file size

I am using Python 2.7. I have a .bz2 file, and I need to figure out the uncompressed file size of its ... way for bz2 files? Thanks very much See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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compression - GZipStream doesn't detect corrupt data (even CRC32 passes)?

I'm using GZipStream to compress / decompress data. I chose this over DeflateStream since the documentation states ... is not being detected? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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707 views

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compression - shortest encoding for Guid for use in a URL

Mads Kristensen got one down to 00amyWGct0y_ze4lIsj2Mw Can it go smaller than that? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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393 views

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compression - Inno Setup - How to add multiple arc files to decompress?

I am using this code: Inno Setup - How to add cancel button to decompressing page? (answer of Martin ... extractions. whole Is this possible? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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508 views

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compression - Compress file before upload via http

Is it possible to compress data being sent from the client's browser (a file upload) to the server? Flash, ... and other technology is ok! See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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609 views

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compression - Java: Error creating a GZIPInputStream: Not in GZIP format

I am trying to use the following Java code to compress and uncompress a String. But the line that ... uncompressedStr = baoStream2.toString(); See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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compression - Store mongodb data in compressed format

I am using mongodb to store raw HTML data of web pages using scrapy framework. In one day of web scraping ... raw data in compressed format. See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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539 views

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compression - Why can't hadoop split up a large text file and then compress the splits using gzip?

I've recently been looking into hadoop and HDFS. When you load a file into HDFS, it will normally split the file ... split gzip'd files in HDFS. See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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7.5k views

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compression - What is the canonical method for an HTTP client to instruct an HTTP server to disable gzip responses?

I thought this was a simple google search, but apparently I'm wrong on that. I've seen that you should ... on the response message body? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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compression - Is there a safe way to run a diff on two zip compressed files?

Seems this would not be a deterministic thing, or is there a way to do this reliably? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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371 views

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compression - Using Java Deflater/Inflater with custom dictionary causes IllegalArgumentException

The following code is based on the example given in the javadocs for java.util.zip.Deflater. The only ... dictionary with Deflater/Inflater? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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762 views

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compression - Kafka message codec - compress and decompress

When using kafka, I can set a codec by setting the kafka.compression.codec property of my kafka producer. Suppose ... ). Can someone clear this? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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798 views

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compression - How to read a .gz file line-by-line in C++?

I have 3 terabyte .gz file and want to read its uncompressed content line-by-line in a C++ program. As the ... a simple example of doing it? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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400 views

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compression - Does PostgreSQL support transparent compressing of tables (fragments)?

I'm going to store large amount of data (logs) in fragmented PostgreSQL tables (table per day). I would like ... magic name for such a feature. See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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525 views

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compression - How can I use the "compress/gzip" package to gzip a file?

I'm new to Go, and can't figure out how to use the compress/gzip package to my advantage. Basically, I just ... an example on how to do this. See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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1.0k views

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compression - Create Zip archive from multiple in memory files in C#

Is there a way to create a Zip archive that contains multiple files, when the files are currently in memory? ... to do this using SharpZipLib. See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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524 views

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compression - Compact decompression library for embedded use

We're currently creating a device for a customer that will get a block of data (like, say, 5-10KB) ... and a commercial license are required? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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686 views

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compression - Python - mechanism to identify compressed file type and uncompress

A compressed file can be classified into below logical groups a. The operating system which you are working on (*ix, ... way to do it in python? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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602 views

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compression - Compressing floating point data

Are there any lossless compression methods that can be applied to floating point time-series data, and will ... speed would be excellent. See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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629 views

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compression - Compress jpeg on server with PHP

I have a site with about 1500 JPEG images, and I want to compress them all. Going through the directories is ... folder into the script? Thanks. See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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789 views

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compression - java.util.zip.ZipException: invalid distance too far back while decompressing

util.zip.ZipException: invalid distance too far back this exception when i am decompressing my data....it ... exception occurs please help. See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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425 views

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compression algorithm for sorted integers

I have a large sequence of random integers sorted from the lowest to the highest. The numbers start from 1 bit ... space as possible. Thank you. See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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compression - Make tar file by Java

I want to use Java to compress a folder to a tar file (in programmatic way). I think there must be an open ... a library to do it? Thanks! See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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745 views

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compression - .NET GZipStream compress and decompress

What is wrong with this code below. I always get FALSE, meaning after compression, decompressed data does not match ... I am making a mistake. See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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678 views

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compression - When should I use MySQL compressed protocol?

I've learned that MySQL can compress communication between servers and clients. Compression is used if both ... factors I should consider? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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526 views

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compression - Compressing IplImage to JPEG using libjpeg in OpenCV

So I have this problem. I have an IplImage that i want to compress to JPEG and do something with it. I use ... TRUE); part? Can anybody help? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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