compress webm

The zlib module in Python is used to compress or decompress data for storage and transmission. It is the basis for other compression tools. Let's take a look at Python's method of compressing and decompressing strings and files using module zlib. If you don't say more, just look at the sample code. Example 1: compressing and decompressing strings Import zlib Message = ' abcd1234 ' compressed = zlib.compress (message) decompressed = zlib.decom

, we can get the local picture path, then our team image compression processing.1 //first, the selected picture is converted into a stream form, and the path gets2FileInputStream is =NewFileInputStream (path);3 //defines a file, as a compressed picture4File f =NewFile ("Picture Save Path", "Picture name");5 intSize = "";6Options options =NewOptions ();7Options.insamplesize =size;8 //reduce the image to the original 1/size, or it will report a memory overflow error when th

(Archivestreamfactory.tar, FOS); //Copy the existing entriesArchiveentry NextEntry; while((NextEntry = Ais.getnextentry ())! =NULL) {aos.putarchiveentry (nextentry); Ioutils.copy (AIS, AOS); Aos.closearchiveentry (); } //Create the new entryTararchiveentry entry =Newtararchiveentry (file2writename); Entry.setsize (Filetoadd.length ()); Aos.putarchiveentry (entry); Ioutils.copy (NewFileInputStream (Filetoadd), AOS); Aos.closearchiveentry ();

Compressing the picture, the size of the picture is inconsistent with the width we expect, we can handle it as we want it to be wide.Pass in the picture you want to change, and the new size-(uiimage*) Imagewithimage: (uiimage*) Image scaledtosize: (cgsize) newsize{//Create A graphics image contextUigraphicsbeginimagecontext (newSize);//Tell the old image to draw in this new context, with the desired//New Size[Image Drawinrect:cgrectmake (0,0, Newsize.width,newsize.height)];//Get The new image fr

Document copy, move, compress and so on the SELinux attribute relation detailed1. Temporary modification of File type propertiesIncorrect file Type property is the main cause of common selinux denial of access1) Modify the SELinux properties of the file:[email protected] ~]# Touch Test.file # #新建文件[Email protected] ~]# ls-z Test.file # #查看文件的SELinux属性-rw-r--r--. Root root Unconfined_u:object_r:admin_home_t:s0 test.file[Email protected] ~]# chcon-t sam

Compress the image according to the specified width (the size of the image after compression will also be compressed), and the width is equal $ NewWidth = 600; $ File_path = 'd:/myWorkspace/get_img/deal_img/jiaShuiYin/1.jpg '; $ NewName = 'd:/myWorkspace/get_img/deal_img/jiaShuiYin/2.jpg '; ResizeImage ($ newWidth, $ file_path, $ newName ); /*Function: compress an image according to the specified width (th

This article describes how to upload and compress images in php. An example of this article describes how to upload and compress images in php, the previous article "PHP implements image upload and compression" has provided a brief introduction for you. This article uploads images and uses scaled thumbnails to specify the maximum height or width of the thumbnail. The details are as follows: Implementation

Enable gzip to compress website content SetOutputFilter DEFLATE # Don't compress images and other SetEnvIfNoCase Request_URI .(? : Gif | jpe? G | png) $ no-gzip dont-vary SetEnvIfNoCase Request_URI .(? : Exe | t? Gz | zip | bz2 | sit | rar) $ no-gzip dont-vary SetEnvIfNoCase Request_URI .(? : Pdf | doc) $ no-gzip dont-vary AddOutputFilterByType DEFLATE text/html text/plain text/xml text/css AddOutputFilter

This article mainly introduces how to compress all files in a python folder as zip files, which can be used to compress simple zip files, for more information, see the example in this article. Share it with you for your reference. The details are as follows: This code can be used to package your own folder as zip. I will use this code to back up Import zipfilez = zipfile.ZipFile('my-archive.zip ', 'W'

When using ftp to back up data, it takes a lot of time because there are too many files, so we need to use the compression and decompression commands, for example, I need to back up the/opt/data folder, however, since there are tens of thousands of files in the data file, you need to use the zip command at this time. for details, see data file compression and transfer: cd/optzip-rdata.zipdataok. the data file is compressed into data.zip format. this is the upload and download method. When using

I have never thought about how to compress volumes in Linux, because Windows systems are used in daily office work, and any compression software can be used in the following sections. I have never tried it in Linux, because my Ubuntu is installed on my PC, and I only tell it a few hours after work every day to pass the time. The most common application is to go to the Internet, chat, listen to music, and play games. A pure entertainment machine. I dow

The main use of HTML5 canvas to compress the image, and then converted to Dataurl, and then dataurl into a blob file, BLOB objects can be directly assigned to Formdata.App.service (' Util ', function ($q) {var datauritoblob = function (Datauri) {//convert base64/urlencoded Data Comp Onent to Raw binary data held in a string Var byteString; if (Datauri.split (', ') [0].indexof (' base64 ') >= 0) byteString = Atob (Datauri.split (', ') [1]

Generate the serial number (compress the 12-bit time value into a combination of 7-8 letters and numbers) php code /*** Generate the serial number ** to compress the 12-digit time value into a combination of 7-8 letters and numbers. The key point is that the user number will never be repeated. * usage: $ serial_no = sofn_generate_serial ('kh '. $ this-> user_login_data ['id']); * Example: QBVF4346 (8-bit

Install ffmpeg, convert the video format to m3u8, compress the video, and ffmpegm3u8 # FfmpegInstall ffmpeg, convert the video format to m3u8, and compress the video # Ffmpeg InstallationDirect installation: Apt-get install ffmpeg Run 'ffmpeg 'to check whether the version number is displayed to determine whether the installation is successful. If the full-ffmpeg.sh fails to run /Full-ffmpeg.sh # Convert ffm

:^{ }]; }Callback method after recording:- (void) Imagepickercontroller: (Uiimagepickercontroller *) Picker Didfinishpickingmediawithinfo: (NSDictionary *) info{Nsurl*url =[Info Objectforkey:uiimagepickercontrollermediaurl]; NSLog (@"------%@", URL); NSString*appdocumentpath =[Nssearchpathfordirectoriesindomains (NSDocumentDirectory, Nsuserdomainmask, YES) lastobject]; Nsurl*uploadurl = [Nsurl fileurlwithpath:[[appdocumentpath stringbyappendingpathcomponent:[self dateString]]

Compressing the picture, the size of the picture is inconsistent with the width we expect, we can handle it as we want it to be wide.Pass in the picture you want to change, and the new size-(uiimage*) Imagewithimage: (uiimage*) Image scaledtosize: (cgsize) newsize{//Create a graphics image contextUigraphicsbeginimagecontext (newSize);//// new Size[image Drawinrect:cgrectmake (0,0,newsize.width,newsize.height)];// Get the new image from the contextuiimage* newimage =// End the Context// Return th

Use static resource compression to consolidate static resource files reduce the number of client requests, compress file sizes, and reduce network traffic lossNeed to use Microsoft ASP. NET Web Optimization, installation method:Install-package Microsoft.AspNet.Web.OptimizationRefer to the MVC architecture method, add BundleConfig.cs in App_startusingSystem;usingSystem.Collections.Generic;usingSystem.Linq;usingsystem.web;usingSystem.Web.Optimization;na