gradually widens as the number of conditions increasesFor character variables, if-then/else statements is always more efficient than SELECT STA Tements. The performance gap widens quickly between the techniques as the number of conditions increases.Best case scenario with two optionsUse If-then/else statements when?? 1:the data values are character values?? 2:the data values is not uniformly distributed?? 3:there is few conditions to check.Use SELECT statements when?? 1:you has a long seri
References:
Http://blog.csdn.net/forestarmy
Http://blog.chinaunix.net/space.php? Uid = 25153965 Do = Blog id = 160561
1. Install opensuse 11.4
2. Open some ports of the firewall to enable SSH and so on:
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?
# Vi/ete/sysconfig/susefirewall2
Fw_services_ext_tcp = "ssh 445 139 Telnet 80 81 82"
Fw_services_ext_udp = "137 138"
# Rcsusefirewall2 restart
3. Set up obs
OBS (o
OBS is an open source coded push-flow tool that is easy to use and very popular.In one project, it was found that 32-bit OBS streaming CPU utilization was 100% under this desktop I3 processor. The third-party device used in 64-bit, the performance is better.Therefore, the 64-bit OBS needs to be compiled and the corresponding 64-bit plugins compiled.Compile the 64
This article was written in 2018-02-10. As of the end of this article, there is no known method to allow OBS to function properly in a Wayland environment.
Workaround
Discard the use of Wayland and switch to x Window
To record the screen on Wanyland, you can use Gnome's extended easyscreencast (https://extensions.gnome.org/extension/690/easyscreencast/)
There are also some tools you can record on the Wayland screen, you can choos
OBS Source code parsing one
OBS Overall Engineering
Obs
OBS Program Interface, program entry, QT based
Libobs
Core integrated encapsulation of OBS, integrated encapsulation of all third-party libraries
Blake2
Hash algorithms are said to be faster and safer than sha-1
Co
Using Red5 and OBS to develop their own live platform to challenge Bilibili (b station), why the article title called This, in fact, I study red5 and FMS aspect of things is a long time, plus I recently with the help of Flex, to develop a medical remote consultation system (Web-based video chat). So I use the convection media and environmental construction, as well as client development are already familiar. I was in B station for many years (I was pr
How to install OBS Studio 18.04 in Ubuntu 16.04/21.1
OBS Studio is a free open-source live streaming and screen recording software. It has 21.1 versions a day ago. The following describes how to install Ubuntu 18.04, Ubuntu 17.10, Ubuntu 16.04, and/or Ubuntu 14.04.
OBS Studio 21.1 changes include:
Use some fixes and APNG (animated PNG) image files to update th
Recently in window is a platform to do a function to capture audio and video through Obs, and through the RTMP protocol to its encoded compressed data into its own program, since the OBS software with very powerful game recording and desktop recording functions, as well as input, output audio device data acquisition and mixing function , the current fight fish game Live is also used by this software as a re
Today all the afternoon is tossing obs, from the official website download the source code compiled a bunch of problems, and then consider not install DirectX, download from the official website after the installation problems ... Always prompt to install, and later found that it is necessary to the original Microsoft Visual C + + x86 redistributable, Microsoft Visual C + + x64 redistributable, such as the first uninstall, Because VS2013 has been inst
Recorder is a simple GTK + CD burning tool. Compared with Brasero, there are not so many dependencies. In fact, most of the time, what we need is to be able to burn ISO image files, Data CD/DVD, and Use Recorder.
Install Recorder
Recorder requires pygtk, cdrkit (or cdrtools), and dvd + rw-tools, which must be installe
Git-Introduction to mobile recorder and reflog, git-recorder reflog
Reflog is really a Caring little cotton jacket
Preface
In the previous article, data is deleted. The topic of this article is data recovery. After learning these two skills, you can be more confident and bold.What is reflog?
Reflog, which can be divided into two words: Reference log and Reference log. When the reference in the Local wareh
The Obsapp class has the following features:1. Responsible for profile management2. Version information management3. Main interface Obsbasic Object management4.obs Module InitializationClass Obsapp:public Qapplication {Q_objectPrivatestd::string locale;std::string theme;ConfigFile GlobalConfig;Textlookup Textlookup;Obscontext Obscontext;Qpointerprofiler_name_store_t *profilernamestore = nullptr;os_inhibit_t *sleepinhibitor = nullptr;int sleepinhibitre
Often to the computer work friends, if the mouse has memory function can save a lot of time, this article is to recommend a small series of tools called the Universal mouse Recorder, the Universal mouse recorder how to use? The following small series for everyone to bring the Universal mouse recorder using the tutorial, a reference to it.
Universal M
See my blog in English: http://xizhizhu.blogspot.com/2011/04/create-debian-and-rpm-packages-using.html
Here is the key translation;
If you are not clear about the basics of Debian and RPM packages, please refer to:
Http://www.debian.org/doc/maint-guide/index.en.html
Or
Http://en.opensuse.org/openSUSE:Packaging_guidelines
First package your source code, do not have to include any package management information, can be named as obs-sample.
OBS Source Analysis of a
Obs Whole Project
Obs
OBS Program Interface, program entry, QT based
Libobs
Core integrated encapsulation of OBS, integrated encapsulation of all third party libraries
Blake2
hash algorithm, which is said to be faster and safer than sha-1
Coreau
How does one use the Win10 built-in step recorder? Where can I save it ?, Win10 Recorder
The step recorder is provided in Windows 10. The step recorder can save the operation steps so that we can view them again. How can we use the step recorder in Windows 10? Let's take a
WebEx Recorder is an excellent recording screen software.WebEx Recorder can record full-screen or specified windows, can be set to include sound, the resulting file volume is very small and very clear, the recording process occupies little resources.
1. Download and install WebEx RecorderDownload the WebEx recroding Editor, which is approximately 4MB in volume and approximately 7MB after installation. WebEx
Temperature Recorder Overview
Temperature Recorder , 32-way universal input (configurable input: standard current, standard voltage, thermocouple, thermal resistance, frequency, millivolt, etc) 16-way alarm output, one RS232 communication interface or RS485 communication interface, can provide sensor distribution and 16-way relays contact output, with powerful display function, real-time trend curve displa
1. Under the Standby page, click "Application".
2. Click "Recorder".
3. Click the left and right arrows to find the meeting mode.
4. After reading the "meeting mode" prompts, click "OK".
5. Click on the "Recording" button to start recording. (Note: A microphone can identify up to 8 sound sources.) )
6. When the recording is complete, click the "Stop" button.
7. To listen to the recording effect, cl
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