multiplexer demultiplexer

-based package format processing: AV Splitter (demuxer)AV multiplexer (muxer): The simplest ffmpeg-based package format processing: AV multiplexer (muxer)9.FFmpeg Streaming Media applicationsThe use of ffmpeg for streaming media applications, mainly the transmission and reception of streaming media.Articles directly using the Ffmpeg.exe command line tool:ffmpeg command to send streaming media (udp,rtp,rtmp)

information from the hard diskFor example, through the read command , called an IO operation , an io is completed , an io is not completed , blocking keyboard io, disk io is complete ,This process is also unable to respond, because the keyboard IO is not finished , still blocking , the process is still asleep , this time what to do ?This requires I/O multiplexing.Execution processAfter the process in the call io , not directly call io function , in the system kernel , a new system call , The

stretching the size of the image.Example of use of Libswscale: The simplest example of FFmpeg-based Libswscale (YUV to RGB)In addition, this example comes with a program to generate a test picture: The simplest example attachment for FFmpeg-based libswscale: Test picture Generation toolProcessing of the 8.FFMPEG package format is done using FFmpeg for encapsulation format, mainly through Avformat. There are 3 examples of processing of encapsulation formats:Encapsulated Format Converter: The sim

formatsThe processing of encapsulation formats using FFmpeg is done primarily through Avformat. There are 3 examples of processing of encapsulation formats:Encapsulated Format Converter: The simplest ffmpeg-based package Format converter (no codec)AV Splitter Simplified version (demuxer-simple): Simplest ffmpeg-based package format processing: AV splitter simplified version (demuxer-simple)AV Splitter (demuxer): The simplest ffmpeg-based package format processing: AV Splitter (demuxer)AV

This is a creation in Article, where the information may have evolved or changed. I began to become a Gopher 10 months ago, without turning back. Like many other gopher, I quickly discovered that simple language features are very useful for quickly building fast, scalable software. When I first started learning Go, I was playing with a different multiplexer (multiplexer) that could be used as an API server

Time. Duration//How long-to-sleep on accept failure If err: = Srv.setuphttp2_serve (); Err! = Nil {return err} srv.tracklistener (L, True) defer Srv.tracklistener (L, false) Basectx: = Conte Xt. Background ()//base is always Background, per Issue 16220 CTX: = context. Withvalue (Basectx, Servercontextkey, srv) CTX = context. Withvalue (CTX, Localaddrcontextkey, L.ADDR ())//Turn on loop for monitoring for {///through the Accept method of listener to obtain the connection data rw, e: = L . Accept

The use of basic IO and the simplest example of blocking the server are described in the previous article, and this article introduces the relevant content of the following NIO, which you can refer to in the previous share: Basic knowledge and concepts of network IO General IO and Bio server Use of NiO with server Hello World Netty Getting Started with server Hello World Netty in Layman's NIO, also known as New-io or Non-blocking-io, is understood as non-block

;import Java.nio.bytebuffer;import Java.nio.channels.filechannel;import Java.nio.channels.serversocketchannel;import Java.nio.channels.socketchannel;import Java.nio.file.paths;import Java.nio.file.standardopenoption;import org.junit.test;/* * Three cores to complete network communication using NIO: * 1. Channel: Responsible for connection * * Java.nio.channels.Channel Interface: * |--selectablechannel * | -socketchannel * |--serversocketchannel * |--datagramchannel * * |--pipe. Sinkchannel * |--

the request model .This model lacks elastic scalability, the number of processing threads on the server and the number of concurrent accesses to the client are 1:1, and the number of threads is inflated resulting in a significant decrease in efficiency, even when the thread's stack overflows and the new thread cannot be created.Pseudo-Asynchronous IO communicationUse the thread pool to be responsible for connections.encapsulates a user's request into a task and then throws it into the thread po

number as a seed to produce new random number. /dev/aio asynchronous I/O notification interface one =/dev/kmsg any write to the file will be the output of PRINTK 1 Block RAM Disk 0 =/dev/ram0 1th RAM dis K (Initrd can only use ram0) 1 =/dev/ram1 2nd RAM disk ... MB =/dev/ram200 No. 200 RAM Disk 4 char TTY (terminal) device 0 =/dev/tty0 Current Virtual Console 1 =/dev/tty1 1th Virtual Console ... /dev/tty63 = 63rd Virtual Console 4 blockIf the root file system is mounted as read-only, then

external third-party sensor is used only when the external sensor is connected (and has limited performance). The I2C interface used to send motion data is optional, because the SPI interface is reused, so only two is selected.MPU9250 I2C Interface:I2C interface for third-party sensors This interface is used to connect to the external Third-party sensor, that is, if you feel that the MPU9250 9-axis sensor is not enough, you can also external third-party sensors, such as pressure sensors.This ad

to install, Walkair systems can transmit carrier based carriers, providing class TDM (Time division Multiplexing) services and efficient IP connectivity.As a combination of this best solution, Alvari base allows operators to have unprecedented flexibility in selecting customer addresses and providing services. Alvari base enables operators to quickly and efficiently create broadband wireless access systems and provide solutions that have the benefits of Walkair and breeze access on a single inf

method, will read to the content write to the buffer to save. Cases:Bytebuffer buffer = bytebuffer.allocate (n); Buffer.clear (); // resets the position to 0, sets the limit to capacity, and makes the buffer writable FileChannel New FileInputStream ("filename"//read from file channel writes to buffer3. Non-blocking IOThe Java.nio.channels package contains channel-related classes, which represent an I/O channel to a hardware device, file, network socket, and so on, and the channel is a bidi

I have had a Mercedes diagnostic machineMB STAR C3For a while and I decided to try and make it work, but every time I try to communicate with the car I get a error MESSAG E saying:Fault (1.1) -1.501.9504Initialization of diagnosis Multiplexer failed. Possible causes:the link between the diagnosis multiplexer and the diagnostic socket is interrupted. The link between the diagnosis

(image stretch, pixel format conversion)The Swscale class Library can convert the format of pixel data while stretching the size of the image.Example of use of Libswscale: The simplest example of FFmpeg-based Libswscale (YUV to RGB)In addition, this example comes with a program to generate a test picture: The simplest example attachment for FFmpeg-based libswscale: Test picture Generation toolProcessing of the 8.FFMPEG package format is done using FFmpeg for encapsulation format, mainly through

ChannelsWe read and write to the data through the channel, it is like a water pipe, is a channel. The channel differs from the flow where the channel is bidirectional and can be used for read, write, and simultaneous reading and writing operations.The channels of the underlying operating system are generally full-duplex, so full-duplex channel streams can better map the underlying operating system's APIs.There are two major types of channel: Selectablechannel: User network read/write

the difference between 1.BIO, NiO and AIO. BIO: A connection to a thread, the client has a connection request, the server side needs to start a thread to process. The thread overhead is large. Pseudo-Asynchronous IO: Put the request connection into the thread pool, one-to-many, but the thread is still a valuable resource. NIO: One thread is requested, but the connection requests sent by the client are registered to the multiplexer, and

This article describes how to test a network service program with internal logic by using test harness. The code for this article is shown in Http://code.google.com/p/muduo/source/browse/trunk/examples/multiplexer Download Address: http://muduo.googlecode.com/files/muduo-0.2.0-alpha.tar.gz SHA1 checksum: 75a09a82f96b583004876e95105c679e64c95715 Cloud Wind in his blog mentioned the game to connect the server's functional requirements (search "practi

exchange speed, reduce costs and improve reliability. In an ideal all-optical network, all functions of signal exchange, route selection, transmission and recovery are all in the form of light. At present, all optical network is not the whole network optical, but refers to the optical information flow in the transmission and exchange process in the form of light, with the circuit method to achieve the control part. From the current situation and development trend of optical electronic componen

In the fully transparent networking scheme using IP network or leased line to realize voice switch, in addition to adopting the most advanced signaling system, the built-in voice compression platform and its IP network voice are integrated in the switching system. VOIP Technology and Gateway technology are the key to achieve high quality voice communication. The built-in speech compression technology provides a new set of solutions for the connections between nodes, and can reduce the communic