This article link: https://www.jianshu.com/p/6ea100865744
EnvironmentSystem: Windows7 SP1 64-bitEditor: Visual Studio Community 2017Live555:2018-01-24Ready to work download source codehttp://www.live555.com/liveMedia/public/Download live555-latest.tar.gz, mine is the 2018-01-24 versionDownload vsHttps://www.visualstudio.com/zh-hans/thank-you-downloading-visual-studio/?sku=Communityrel=15Install vsSelect "Use c+ + Desktop development" at the time of installation. Having installed vs but no c
First, summarizeSystem Boot Architecture diagram:In the Android system-the beginning of the explanation, from the point of view of the Android system boot, this article is from the process/threading perspective to analyze the problem.1.1 Parent ProcessIn all processes, a process that exists in the posture of the parent process (that is, the light red item in the diagram), as follows:
kthreadd进程: is the parent process of all kernel processes
init进程: Is the parent process (or parent p
First, summarizeSystem Boot Architecture diagram:In the Android system-the beginning of the explanation, from the point of view of the Android system boot, this article is from the process/threading perspective to analyze the problem.1.1 Parent ProcessIn all processes, a process that exists in the posture of the parent process (that is, the light red item in the diagram), as follows:
kthreadd进程: is the parent process of all kernel processes
init进程: Is the parent process (or parent p
/PCI Express support for 8544DS board (commit)
FSL: Add support for PCI-X controllers (commit)
Add driver for DDR2 memory on AXON Cell systems (commit)
Add support for MSI on Axon-based Cell systems (commit)
Add support to OProfile for profiling cell be SPUs (commit)
8xx: mpc885ads pcmcia support (commit)
PS3: Bootwrapper support. (commit)
PS3. BD/DVD/CD-ROM Storage Driver (commit)
There are several prompt variables to mention when the color of the terminal is mentioned under the shell:
PS1: The default prompt, that is, after the remote boarding system, open the terminal, we see the familiar prompt every day;
[Root@vps ~] $echo $PS 1[\u@\h \w]$
PS2: It is our command line to write the "\" on our command line, and the one that is displayed on the other line;
[Root@vps ~] $echo "Hello" \> "World"Hello World[Root@vps ~] $echo $PS 1[\u@\h \w]$
event messages.2. Typical UPnP AV application architecture650) this.width=650; "src=" Http://s3.51cto.com/wyfs02/M02/6B/E3/wKiom1U45h_x1rP4AAESqPv2zVk980.jpg "title=" Image.jpg "alt=" Wkiom1u45h_x1rp4aaesqpv2zvk980.jpg "/>is a typical UPnP AV application architecture, it comes from "upnp-av-avarchitecture". In a typical UPnP application, there are three principals, one server (mediaserver), one player (Mediarender), and one control point.The server (
Internet accidentally found an article about compiling live in the VC6 environment, and then according to the above said, bumps, compiled successfully four libraries and transferred to the VS2008 environment. More fortunate is also accidentally found on the Internet an introduction with VS2008 compiled live articles and provide a compiled project download, download, and then began a relatively long learning process.
From the structure of the program, the live project consists of four basic libr
What is RGB full range? In short, the TV set generally only supports 240 levels, from 16 ~ 255. The computer monitor supports 255 levels, from 0 ~ 255. RGB full range is enabled in the display option of the PS3, that is, 0 ~ is output to the TV ~ 255 of the full-color signal.
Do you want to open it? The answer is: If you want to enable the video, enabling the RGB full range will make the video more colorful. However, if you don't support the TV, the
receiving end. At present, the domestic WHDI module manufacturer World Alliance Company through the channel has realized the return function of USB keyboard and mouse, that is, UWTC (USB Wireless Transmission Control) technology, at the same time mastered the multi-touch of remote controls technology.
Support HDCP2.0 Technology
The HDCP organization has set HDCP2.0 technical standards for WHDI technology alone. HDCP2.0 can allow users to achieve a one-to-many, Many-to-many HDCP mutual authent
Series Tutorials Directory
For more information on the series, see the Linux Shell Series Tutorial:Linux Shell Series tutorial, Welcome to join the Linux Technology Exchange Group: 479935456Original: https://www.linuxdaxue.com/linux-shell-select-command.htmlSelect with case to use, you can complete a lot of complex menu control options.Select, unlike other flow controls, does not have a similar statement in a programming language such as C, and today introduces the use of the shell SELECT stat
Technical analysis: Android libStagefright Vulnerability Analysis
The article corresponds to the CVE-2015-{1538,1539, 3824,3826, 3827,3828, 3829} 7 CVE, the specific ing relationship is unknown. This vulnerability affects the security of Android 95%. By following up on the attack surface of this vulnerability, this statement is no exaggeration. It is also credible to say that a MMS Message is directly used to lay down the machine. However, this is only one of the many attacks.Attack Surface Anal
channels, and ringtones.
28. HeadsetObserver
Monitoring cycle of earphone plugging events
29. DockObserver
If there is a license in the system, when the mobile phone is installed or pulled out, it will have to be managed by him.
30. BackupManagerService-> BackupManager
Backup Service
31. AppWidgetService-> AppWidgetManager
Android allows users to write programs on the desktop as Widgets. This is the interface for this process and service.
32. StatusBarPolicy
Specifies the icon to display o
Reprint: http://blog.chinaunix.net/uid-10995602-id-2918710.htmlGoogle provides an Eclipse plug-in for Android app development as a development tool, and it's easy to debug the APK based on eclipse, while the underlying developers (such as opencore development) do not offer similar intuitive development tools and debugging tools. The purpose of this paper is to introduce a debugging method based on Ddd+gdbserver, which is used for program debugging of C-level similar to Opencore. The steps are as
can be debugged
ServiceManager
Binder Communications Big Butler
Surfaceflinger
Graphical display of the UI for the Android system
MediaServer
Responsible for playing audio, video, camera photo recording
Native System ServicesWritten by the C + + language and run in the local daemon. For example, the MediaServer daemon contains Audioflin
hardware platform: Atmel sama5d3 SoC + OV2640 Camera SensorAndroid version: 4.2.2The mediaserver process is the container process for the camera service, which dynamically loads the camera HAL and Gralloc HAL. The video data frame must first reach the camera hardware abstraction layer from the camera driver. At the camera hardware abstraction layer, the video data frame is copied from the visual capture buffer to Gralloc buffer.The Surfaceflinger proc
Recent research on RTSP HTTP stream Stream acquisition methodVLC over live555 is a good choice, of course, Andorid framework AV is also supporting RTSP http, the same good choice1. CompilingHttps://wiki.videolan.org/AndroidCompileI am Ubuntu 12.04 may be the environment to install some things better for the sake of it, uh, looks like another necessary condition, the network. Assuming you don't have this, you'll meetInexplicable singular question. I've compiled this, and I don't support rtsp very
modulation.
Pwm
Pulse-width modulation is a form of modulation used to represent an analog signal by a digital signal, where the relative Width of a digital pulse indicates the signal level. It is commonly used by analog to digital converters. See Wikipedia article Pulse-width modulation.
Android-specific Terms
These is terms specific to the Android audio framework, or which may have a special meaning within Android beyond their GE Neral meaning.
ALSA
Advanced Linux Sou
interfaces and the implementation mechanism of the binder, it is best to use an example for research. The example I selected is the implementation of the media player that comes with android. The Media Player Code is in the following directories:
Frameworks/base/include/media
Frameworks/base/media
Copy code
Use the reverse engineering function of startUML to analyze the above Code and sort out the code to obtain the following class diagram (click to view the original size image ).Upload
Dow
In this topic you will learn some information about android process management. First let's take a look at the launched processes during Android booting.
User PID ppid vsize RSS wchan PC name
Root 1 0 264 176 c00acc6c unzip c36c S/init
Root 28 1 724 308 c0051354 afe0c4cc S/system/bin/sh
System 30 1 796 248 c026516c afe0b74c S/system/bin/servicemanager
Root 31 1 1824 316 ffffffff afe0b50c S/system/bin/mountd
Root 32 1 652 248 c02976e0 afe0c0bc S/system/bin/debugadh
Radio 33 1 5344 6
[First written by Steve Guo, please keep the mark if forwarding.]
In this topic you will learn some information about android process management. First let's take a look at the launched processes during Android booting.
User PID ppid vsize RSS wchan PC name
Root 1 0 264 176 c00acc6c unzip c36c S/init
Root 28 1 724 308 c0051354 afe0c4cc S/system/bin/sh
System 30 1 796 248 c026516c afe0b74c S/system/bin/servicemanager
Root 31 1 1824 316 ffffffff afe0b50c S/system/bin/mountd
Root 32 1 652 248 c0297
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