Database is installed on it and runs on the IBM X3850 server. Install the OBackup backup software BackupAgent client on the two systems. Then I used an IBM X3650 server with relatively idle resources in our company to add two new 1 TB hard disks as RAID 1 images. Install the OBackup backup software MasterServer and MediaServer components. The BackupAgent component transmits the backup data to the newly added hard disk of IBM X3650. The system structu
. This part of work came into being in 4.0, not to mention too many changes. However, old friends have changed dramatically. Let's first look at the mixerthread family. Figure 1 playbackthread family figure 1 explained a little:
Threadbase is derived from thread, so it runs in a separate thread, programmers who do not understand multi-thread programming must learn multi-thread carefully ). It defines an enumeration type_t to represent the type of the subclass. These types include mixer, direct
the parent process.
I/DEBUG ( 730): pid: 876, tid: 876 >>> /system/bin/mediaserver
The following shows the signal which caused the process to abort, in this case, it's a segmentation fault. This is followed by the register values.
I/DEBUG ( 730): signal 11 (SIGSEGV), fault addr 00000010I/DEBUG ( 730): r0 00000000 r1 00016618 r2 80248f78 r3 00000000I/DEBUG ( 730): r4 80248f78 r5 0000d330 r6 80248f78 r7 beaf9974I/DEBUG ( 730):
For multimedia playback in opencore, there is only one line of code in the mediaserver process:
Mediaplayerservice: instantiate ();
This line of code initializes a mediaplayerservice instance and adds it to the system's servecemanager.
The specific implementation of mediaplayerservice is in the frameworks/base/Media/libmediaplayerservice folder.
When it comes to playing a specific media file, the called function is:
Sp
This is a new client and the f
and then use the client to create a player (that is, call the createplayer function). In fact, the instances pvplayer, midifile, or vorbisplayer are actually created, this is the only bridge between opencore and mediaplayer.Finally, the instance of the Adaptation Layer Created by calling setdatasource (which is a mediaplayer function) is saved in the member object mplayer of the mediaplayer class (For details, refer to the setdatasource function ).
2. pvplayer Initialization1) distribution of r
1. Set the camera direction
2. Open the thread and preview thread
3. Set Parameters
4. Camera peripheral buttons
5. Auto Focus and touch focus
6. Take a photo
7. Face Detection
8. Location Management
9. rotation Management
10. Zoom
11. Video
The architecture of camera is a typical C/S architecture. The client side and user behavior are the functions of application processes, servers, and devices. They are the daemon processes for the camera service, the client process carries users' requireme
real-time hot backup, and the data at the moment of system damage can be restored during restoration. However, to use RMAN for real-time remote backup, you must use a third-party backup tool, the investment in establishing a complete remote backup system that supports real-time data recovery is generally very expensive.
Based on actual work, this article makes full use of the company's existing hardware conditions, and uses the cost-effective OBackup backup software to build an Oracle Data Remo
can summarize them first, so that you can go deeper at any time.
Other assumptions confirmed as false:
1. init. rc needs to be rewritten so that the system does not start android-related services (mediaserver)
2. tinyalsa needs to be obtained through other channels.
Android underlying development problems?
Android underlying layer?Do you mean android platform code development or development of android scripts and version control?For android platform
.
BasicUsageEnvironment
This class mainly targets simple console applications and uses select to obtain and process events.
Workflow
Live555 first creates an RTSP Service (for specific implementation, see the service in mediaServer ). During service creation, the system first calls setUpOurSocket to establish a tcp connection and listens to the input port to wait for the rtsp protocol interaction requested by the client, the connection processing han
Android startup and android startup
Android Startup Process
1. Load the Linux Kernel
2. the Android init process initializes various devices and runs various Daemon (background process/daemprocess), Context Manager, MediaServer, and Zygote required for the Android Framework.
The Daemon process executed by the init process is as follows:
USB Daemon (usbd): Manages USB connections
Android Debug Bridge Daemon (adbd): Android Debug Bridge Connection Manag
Live555 in arm linux cross-compilation, and download the Arm Board to play H264 files. My system is ubuntu 11.10 1. download the live555 source code and H264 test file 2. modify config according to your own cross compiler. * (config. armeb-uclibc), My compiler is buildroot-gcc342 ----- mipsel-linux-uclibc, using config. armeb-uclibc 3. generate Makefile. /genMakefiles armeb-ublibc 4. after compilation, make will generate the live555MediaServer executable file under
P2P streaming media http://www.chinaavs.com/bbs/viewforum.php in the Digital Age? F = 29 I also registered a member and sent emails to my mailbox one day. Now I remember it.
VC Knowledge BaseArticle-VC interface implementation http://www.vckbase.com/document/viewdoc? Id = 1572 UI
ProgramStaff home-sun Xin home page http://www.sunxin.org/
MS Media Encoder SDK concise tutorial http://www.vchelp.net/wyy/after2006/msmediaencodersdk_tour.asp#_Toc144613416
Programming Forum-new little online h
receive live/on-demand media streams, data, and remote call information at multiple bit rates to Flash Player. ums servers support streaming media on demand/live broadcast and other functions based on the Adobe Flash/air technology platform.
2.1. Use umsmonitor to configure the UMS Service
Umsmonitor is a tool used to manage the ultrant mediaserver server software. It can be used to conveniently start, stop, and restart the ultrant Media Server ser
Tags: Android style blog color Io ar Java strong sp
Camera applications are typical Android multimedia systems designed using the C/S architecture. The client and server communicate with each other through the Binder Mechanism between two independent threads. The following figure shows the overall architecture of camera.
From the camera. java (packages \ app \ camera), to the camera of the Framework Java section. java (Framework \ base \ core \ Java \ Android \ hardware), go to android
start a new data sending process, so that the client can continuously receive requests from the server.
Calculation Method of the interval for sending RTP data packets:Update the time at which the next packet shoshould be sent, based on the duration of the frame that we just packed into it.
The following classes are involved:
Mpegvideostreamframer: a filter that breaks up an MPEG Video elementary stream into headers and frames
Mpeg1or2videostreamframer: a filter that breaks up an MPEG 1 or 2 vi
, Activitymanagerservice and so on), this is Audioflinger and Audiopolicyservice. Their code is placed in Frameworks/av/services/audioflinger, and the most important library generated is called Libaudioflinger.Another important system service in the audio system is Mediaplayerservice, which is located in Frameworks/av/media/libmediaplayerservice.Because there are so many libraries and related classes involved, it is recommended that you divide them into two clues when you understand them.First,
/av/media/libmediaplayerservice/mediaplayerservice.cpp:You can see that there are some general business-related definitions here, and then begin to understand MediaplayerserviceFind the entrance first, in Frameworks/base/media/mediaserver/main_mediaserver.cpp.First look at the Defaultservicemanager function, as follows:Using a single case, each process requires only one Bpservicemanager agent, Processstate::self ()->getcontextobject (NULL), Next look
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