"For large software companies or major deployments such as banks or health care firms with large custom software bases, investing in software security can prove to be valuable and provide a measurable return on investment, but that's probably not the case for smaller incluises, said John vies, executive vice president of products, strategy and services at SilverSky and an authority on software security."
Schneier on Security: Is Software Security a Waste of Time?
Bullshit.
It's foolish and sh
One, the following is in the creation of a new project is my most used, and now one of them to do a detailed introduction:1,Win32 Console application I usually write a small C + + program to use it, it should be used the most.2. Name and solution Name difference: Name is the name of the project, a solution can contain multiple projects, so the solution name contains the project name.3. New git repository (G)(1), remove the front hookHere is the directory and file under the solution name director
successfully, ceph is generated in the ceps-cluster directory. conf, ceph. log, ceph. mon. keyring and other related files:# Ceph-deploy new ceph-mon1 ceph-mon2 ceph-mon3Install Ceph on each Ceph node:# Ceph-deploy install ceph-adm ceph-mon1 ceph-mon2 ceph-mon3 ceph-osd1 ceph-osd2Initialize the monitoring node:# Ceph-deploy mon create-initialCheck the hard disk status of the Ceph storage node:# Ceph-deploy disk list ceph-osd1# Ceph-deploy disk list ceph-osd2Initialize the Ceph hard disk and cre
rtmp URL of ffplay in double quotation marks and add the live = 1 parameter to the end to represent real-time streams. In fact, this parameter is passed to librtmp of FFMPEG.
For details about how to process rtmp, refer to the article: How to Use FFMPEG to process rtmp Streaming Media
4. Test latency
There is one way to test the latency, that is, one way to play the sender's video, and the other way to play the stream received by the streaming media. Two Stream play modes are available: FFMPEG
, refer to the article: How to Use FFMPEG to process rtmp Streaming Media
4. Test latency
There is one way to test the latency, that is, one way to play the sender's video, and the other way to play the stream received by the streaming media. Two Stream play modes are available: FFMPEG and ffplay.
Playing Through ffplay is a well-known method, for example:
ffplay -f dshow -i video="Integrated Camera"
You can play back the camera with the local name "integrated camera.
In addition, you can use
installation and configuration are complete, read the next section to obtain FFMPEG using SVN. Otherwise, perform the following steps in sequence.
Install msys
Install mingw
Integrate mingw and msys
Obtain FFMPEG using SVN. If you already know how to obtain the source code of FFMPEG, read the next section for compilation. Because the source code of FFmpeg is stored in the svn repository, you must use the command line program or graphical interface program to access it. I personally recomme
1. SDL (similar to DirectX)
SDL (Simple DirectMedia Layer) is an open-source cross-platform multimedia development library written in C language. SDL provides several functions for controlling images, sounds, and outputs, developers can use the same or similar code to develop applications across multiple platforms (such as Linux, windows, and Mac OS X. Currently,
I used qt4 + mplayer to use a player. It seems like adding a shell is boring. My classmates also told me that mplayer is not so easy to do.
I still remember this sentence until now.
At that time, we learned linux together and felt that it was good to use qt for secondary development.
Till now, I have been familiar with ffmpeg, sdl, OSS, and OpenGL. I realized that it was so interesting to develop a player.
Here, I want to sort out my ideas, because I
Introduction
NME is an easy-to-use, cross-platform framework, perfect for game or application development.
The APIS follow the flash API closely. This shoshould make NME especially familiar if you have ActionScript experience. The API is also easy to understand if you have not worked with flash before.
If you are new to programming, please visit the new developers' guide. This will help introduce you to the haxe programming language, as well as basic programming concepts.
If you have experience
Abstract
After learning, we can use ray tracing to implement some simple scenarios. Today we will discuss three basic light sources in graphics: Direction light source, point light source, and spotlight.
Different from the use of existing APIs, this time we will use C ++ to implement it step by step from theory to practice.
Prerequisites
At the teacher's suggestion, I replaced the graphic engine with SDL, and the final rendering effect was much better
drive webcam in Linux
4. Set up a network monitoring server using spcaserv in Linux;
4.1 download the software spcaview;
:Http://mxhaard.free.fr/spca50x/Download>, I downloaded the current version: spcaview-20051212.tar.gz
The spcaview-20051212.tar.gz package contains a set of tools;
* The spcaview tool is used to record data streams and play data. It can also be used as a network monitoring client;* Spcaserv is a Streaming Media Server. We use this tool to monitor the server;* Spcacat is a sim
: * 1. gdigrab: a GDI-based screen recording device under Win32. * When capturing a desktop, enter "desktop" as the URL ". * 2. dshow: Use Directshow. Note that you need to install additional software screen-capture-recorder * in Linux, you can use the x11grab recording screen. ** This software capture screen of computer. it's the simplest example * about usage of FFmpeg's libavdevice Library. * It's suiltable for the beginner of FFmpeg. * This software support 2 methods to capture screen in Mic
/android-arm/kernel-qemu file in the source code directory.
Second: Use the complete emulator command parameters to start the simulator.
Emulator-kernel/Develop/sources/android/2.3.5/Prebuilt/android-arm/kernel-qemu-sysdir/Develop/sources/android/2.3.5/Out/target/product/generic-system. img-data userdata. img-ramdisk. img
The font bold part should be modified according to the source code path. Like the intuitive representation of command parameters,-the kernel is followed by the specified kernel
. As for the disk image, reuse the WinXP. img I created earlier. Remember, it is in qcow2 format.
First, go to the virtual-OS directory in my home directory. ls will take a look at it. There is the WinXP. img that I created earlier. Then, we create a WinXP_Xen.hvm configuration file with the following content:
Builder = "hvm"
Name = "WinXP_Xen.hvm"
Memory = 2048
Vcpus = 2
Disk = ['/home/youxia/virtual-OS/WinXP. img, qcow2, hda, rw']
Sdl = 1
This confi
FFmpeg user manual-common ffplay commands
When compiling FFmpeg source code, if the system contains the SDL-1.2 version, ffplay compilation is generated by default, if the SDL-1.2 is not included or the version is not the SDL-1.2, cannot generate the ffplay file, so, if you want to use ffplay for streaming media playback testing, you need to install the
/download/]Spcaview: recording/playing data streamsSpcaserv: Streaming Media ServerSpcacat: image capturing Tool-------------------------------------------------------------------------------SDL is required for spcaview installation. If SDL-devel is not installed, compilation will fail!SDL Website: [http://www.libsdl.org]Install the SDK through the system softwar
This article focuses on playing the video sound.
audioStream = -1; for (i = 0; i
The above code mainly finds the first audio stream.
aCodecCtx=pFormatCtx->streams[audioStream]->codec;
Record the context information of an audio decoder.
wanted_spec.freq = aCodecCtx->sample_rate;wanted_spec.format = AUDIO_S16SYS;wanted_spec.channels = aCodecCtx->channels;wanted_spec.silence = 0;wanted_spec.samples = SDL_AUDIO_BUFFER_SIZE;wanted_spec.callback = audio_callback;wanted_spec.userdata = aCodecCtx;
This article mainly describes how to play a video file.
If there is no foundation for YUV, you can look at: http://www.cnblogs.com/nanguabing/archive/2012/04/12/2443485.html
if (SDL_Init(SDL_INIT_VIDEO | SDL_INIT_AUDIO | SDL_INIT_TIMER)) { fprintf(stderr, "Could not initialize SDL - %s/n", SDL_GetError()); exit(1); }
The sdl_init () function tells the
This article mainly share the server in the hard disk after the failure of/var/log/messages and/var/log/mcelog will appear in the specific logs and corresponding repair methods, with the increasing number of cases and rich, I will conclude the formation of automated scripts.Of course, there will be many hard disks have physical bad, need to be replaced, this will require the hard disk supplier to replace, this is not covered in this article.Server model:HP se1170sHDD Model:Mb2000eaznlFault 1:Jul
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