how to compress avi

Compression decompression Command: gzipCommand name: gzipCommand English original: GNU zipCommand location:/bin/gzipExecute Permissions: All UsersFunction Description: Compress fileCompressed file format: . GZSyntax: gzip [file]----------------------------------------------------Compression decompression command: GunzipCommand name: gunzipCommand English original: GNU unzipCommand location:/bin/gunzipExecute Permissions: All UsersFunction Description

Packaging Example: package files in the /usr/local/src/zlib-1.2.5 directory into zlib-1.2.5.tar.gzCD/USR/LOCAL/SRCTAR-CZVF./zlib-1.2.5.tar.gz/zlib-1.2.5/*# compressed into the development directory (for example:/root/2/) tar-czvf/root/2/ zlib-1.2.5.tar.gz./zlib-1.2.5/* #压缩 TAR-CZVF ***.tar.gz TAR-CJVF ***.tar.bz2 #解压缩 TAR-XZVF ***.tar.gz TAR-XJVF ***.tar.bz2 #注意:. tar.gz use more! Brief introductionParameters:-C: Create a compressed file parameter direc

Compressing file meaning saves network transmission bandwidth and reduces disk usage. But a certain CPU will be used.1. GzipCompression directory is not supported, gzip directly with the file name, when compressed in the current directory, the original file will disappear.#gzip filenameSpecify the compression directory: #gzip-C 123.txt >/tmp/123.txt.gz to compress the current directory 123.txt files into the TMP directory under the name 123.txt.gzDeco

Open shop sellers, in the baby on the new time, will have to deal with a large number of baby pictures. To ensure that the width of the baby picture within the limits of Taobao, the seller must work is to the baby picture compression processing. (The maximum width of the picture of Taobao shop is 500px, and the maximum width of the picture is 800px.) ) ISEE software can bulk compress baby picture size, this can greatly save the sellers in the pictur

When you used DAO, Microsoft provided CompactDatabase method to compress Microsoft Access files and RepairDatabase method to fix damaged Microsoft Access files. But since ADO came out, it seems like you forgot to provide the ability to compress and repair Microsoft Access files. Now that Microsoft has found this problem, it also provides a way to understand, but there are limitations on the version! The re

How to compress the size of pictures in ppt 1, open to compress the PPT, click the "File" button, in the Jump to the panel select "Save As", and then double-click its right side of the "Computer" option. 2, the "Save as" dialog box will pop up, select "Compress Picture" under Tools, and then set the compression option and target output in the "

access| Data | database | Compression INTRODUCTION The following C # code can be used to compress and repair an Access database, whether it's a simple ". mdb" or a ". MDW" network shared database, and the process and the tools-database utility-compression and repair that you use in MS Access applications Performs exactly the same operation. The instance code uses "late binding" (the runtime builds a COM object in memory) so that there is no need to ad

Directory1. Introduction to Commands2. Common parameter Introduction3. Example4. Direct access to the bottomIntroduction to CommandsZip is a widely used compression program under the Linux system, and the file is compressed with a ". zip" extension. The zip command is used to compress the file into a common zip format, and the unzip command is used to extract the zip file.Back to CatalogCommon parameters IntroductionThe common parameters of the zip co

Tags: linux bzip2 gzip XZCompression Packaging Introduction:Commonly used compressed file types:1, windows:.rar/.zip/.7z2, Linux:.zip/.gz/.bz2/.xz/.tar/.gz/.tar/.bz2/.tar/.xzGzip Compression Tool:1, experiment, CD to/tmp directory, use MKDI to create a directory d6z, in the CD to d6z directory to create a text 1.txt, text inside the content, add space, and then use the command gzip compression and decompression process.The experimental operation is as follows:[[emailprotected]~]#cd/tmp///First e

(memorystream MS = new memorystream ()){Iformatter formatter = new binaryformatter ();Formatter. serialize (MS, OBJ );Byte [] arrbyte = Ms. getbuffer ();Byte [] arrbytecompress = compress (arrbyte );Return arrbytecompress;}}Catch (exception ex){Throw ex;}}} /// /// Convert the byte array to an object. If the data is compressed, The iscompress value must be true./// /// /// /// /// Public static t bytestoobject {If (! Iscompress){Return bytestoobject

. Position = 0;Ms. Read (bytes, 0, (INT) L );Ms. Close ();MS = NULL;If (position> = 0){Stream. Position = position;}Return bytes;}Public static byte [] gzipcompress (byte [] data){Memorystream MS = new memorystream ();Gzipstream stream = new gzipstream (MS, compressionmode. Compress, true );Stream. Write (data, 0, Data. Length );Stream. Close ();Stream. Dispose ();Stream = NULL;Byte [] buffer = readstreamtobytes (MS );Ms. Close ();Ms. Dispose ();MS =

This is a reliable method for small memory processing-zram. It looks like a compressed biscuit. Although a small biscuit does not look big (zram's compressed page occupies memory), it feels full when drinking water (releasing the content of a page ). 1. Introduction 2. How to enable 3. Workflow 4. What else can I do? Introduction: Zram does not replace the page to external storage when a swap event occurs. The external storage in the mobile phone is emmc, and the external storage in the compute

Label: tar package compression specified directorySometimes, we may need to compress the file/directory to the specified directory. For example, to compress all the files and directories in the/home And/boot directories to the Bak directories, you must first create a Bak directory, copy the/home And/boot directories to the Bak directory, and then compress the Bak

In our daily life, whether traveling or capturing moments, we often take many photos to record these beautiful people or things, and upload these photos in high-definition electronic versions, generally, the size is very large. a photo must be at least several mb, which makes it difficult to upload it to the Internet. Or some photos require a certain height ratio and pixel size. Next we will teach you how to crop and compress electronic photos. Whethe

I needed to compress and decompress the files when I was doing the project, so I started from http://www.icsharpcode.net (http://www.icsharpcode.net/OpenSource/SharpZipLib/ Download.aspx downloaded the source of compression and decompression, but after downloading, faced with so many code, do not know how to start. Had to withstand the heart, slowly study, finally found the way. Two classes of file compression and decompression were rewritten for thei

Php uploads and compresses images ,. How to upload and compress images in php. This document describes how to upload and compress images in php, in the previous article "PHP implements image upload and compression", we have implemented a simple php method for uploading and compressing images, This article describes how to upload and compress images in php. the p

Address: http://lxflfr.blog.163.com/blog/static/129119579200983004539908/ Zlib is a common compression library that provides a set of In-memory compression and decompression functions, and can detect the integrity of extracted data (integrity ). Zlib also supports reading and writing gzip (.gz) files. The following describes the two most useful functions --CompressAndUncompress. Int compress (bytef * DEST, ulogfn * destlen, const bytef * Source, ulon

Use gzip to compress the JSON format data returned by the PHP program. 1. Comparison between HTTP output with and without compression 2. Enable gzip Use apache mod_deflate module to enable gzipEnabling method: sudo a2enmod deflatesudo /etc/init.d/apache2 restart Close method: sudo a2dismod deflatesudo /etc/init.d/apache2 restart 3. Set the type of gzip compression output The json output type is application/json.In Set the output before gzip: Outp

Apache commons compress is a class library for compressing and decompressing files. You can operate files in Ar, cpio, Unix dump, tar, zip, Gzip, xz, pack200 and Bzip2 formats with powerful functions. Here, we will write two methods to compress files into ZIP files and decompress files from ZIP files using commons compress. Directly paste the tool classCode