chromecast multicast

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Code for receiving multicast data using PYTHON

A python script that can send multicast data on LINUX. In fact, it is not too difficult to compile. The specific code is as follows: first declare that this is not what I wrote, but what I found, but what others wrote is quite good. The code is as follows: # UDP multicast examples, Hugo Vincent, 2005-05-14.Import socketDef send (data, port = 50000, addr = '192.1.100 '):"Send (data [, port [, addr])-multi

C # uses UDP multicast for LAN desktop Sharing

memory leak:Calling the DeleteObject in the API[System.Runtime.InteropServices.DllImport ("gdi32.dll")] bool DeleteObject (INTPTR hobject );PrivateBitmapSource Copyscreen () {var handle =IntPtr.Zero; BitmapSource Source =Null;Try{var bitmap =New Bitmap ((intintvar g = Graphics.fromimage (bitmap); G.copyfromscreen ( Span style= "color: #800080;" >0, 0, 0, 0, bitmap. Size); Handle = bitmap. Gethbitmap (); SOURCE = Imaging.createbitmapsourcefromhbitmap (handle, IntPtr.Zero, Int32rect.empty,

Concepts of unicast, multicast, broadcast, and anycast

Concepts of unicast, multicast, broadcast, and anycast UnicastIt refers to the unicast method in which the destination address is a single objective in the computing machine's website. It is the most widely used network today. Generally, most of the network recommendations or services used use unicast Protocol, for example, all TCP-based protocol. [Unicast features] Each time only two instances communicate with each other, the sender and accept

Analysis of multicast knowledge in IGMP V2 package

by default) ------------------------------- Group address ------------------------------- Host and group of IGMP V2 package 1. The host sends the member relationship report to 224.0.0.1. 2. All Hosts receive the report (the host sends a report every 10 seconds) 3. If the router receives the report, add the IGMP group ing table and forward traffic from the corresponding interface 4. the router sends a generral query every 60 seconds and sends it to all hosts to check whether there are any hos

Code for receiving multicast data using PYTHON

First, I declare that this is not what I wrote, but what I found, but what others wrote is quite good. Copy codeThe Code is as follows: # UDP multicast examples, Hugo Vincent, 2005-05-14. Import socket Def send (data, port = 50000, addr = '192.1.100 '):"Send (data [, port [, addr])-multicasts a UDP datax ."""# Create the socketS = socket. socket (socket. AF_INET, socket. SOCK_DGRAM)# Make the socket multicast

Multicast programming (UDP-based protocol)

Start by figuring out what multicast IP addresses areClass D IP Address is the multicast address, the range is 224.0.0.0 ~ 239.255.255.255It is also divided into the following categoriesDivision of Class D addresses Category Address range Describe Local link address (local network control block) 224.0.0.0~224.0.0.255 For LAN, routers do not forward IP pack

56. The PIM Sparse mode of the multicast configuration experiment selects RP dynamically using AUTO-RP

ConfigurationInterface serial0/0IP address 25.1.1.5 255.255.255.0R6 ConfigurationInterface serial0/0IP address 46.1.1.6 255.255.255.0No IP routingIP Default-gateway 46.1.1.44. Configure PIM Sparse ModeR1 ConfigurationIP multicast-routingInterface SERIAL0/1IP PIM Sparse-modeInterface SERIAL0/2IP PIM Sparse-modeInterface fastethernet1/0IP PIM Sparse-modeR2 ConfigurationIP multicast-routingInterface serial0/0

Solve the multicast problem under WIN7

Recently in doing a project, need to use the function of multicast, the program after debugging, in XP can be normal implementation of multicast, but to the WIN7 after the use of multicast, after a long time, finally in the network class teacher's guidance, found that should be IGMP (Multicast Protocol) version of the

Multicast solution in IRF Network (1)

With the rapid development of information technology, the overwhelming network has gradually become an indispensable part of people's life and work, in particular, modern young people put more learning and entertainment time into computer networks, and computer networks have gradually become the main way for people to learn and entertain. How to provide users with a high-bandwidth, high-reliability, high-performance multimedia video service has become a major challenge facing service providers.

Code _python to receive multicast data using Python

First of all, it's not what I wrote, it's what I found, but the others wrote it pretty well. Copy Code code as follows: # UDP Multicast examples, Hugo Vincent, 2005-05-14. Import socket def send (data, port=50000, addr= ' 239.192.1.100 '): "" "Send (data[, port[, addr]])-multicasts a UDP datagram." " # Create The socket s = socket.socket (socket.af_inet, socket. SOCK_DGRAM) # make the socket m

How to use the multicast Task to write data to multiple target tables at the same time

Opening introduction There is a multicast component in the SSIS data flow that works in contrast to the merged data stream components such as merge, merge Join, or Union all. Very intuitive, it can separate a stream of data into multiple streams for use by other data flow components downstream. Several scenarios for using the multicast Task First, take part of the data from the same data source directl

Live555 interaction information with RTSP multicast of VLC

= h264A = control: track2Setup rtsp: // 192.168.1.154: 8557/h264/track1 RTSP/1.0CSeq: 4User-Agent: libvlc/1.1.4 (live555 streaming media v2010.09.25)Transport: RTP/AVP; multicast; client_port = 18888-18889RTSP/1.0 200 OKCSeq: 4Date: sat, Jan 01 2000 00:01:56 GMTTransport: RTP/AVP; multicast; Destination = 232.190.161.0; Source = 192.168.1.154; Port = 18888-0; TTL = 255Session: 1Setup rtsp: // 192.168.1.154

Simple Solution to SL multicast authorization

For specific SL source multicast and any source multicast, you must obtain the authorization of port 9430 of the current domain before joining the group. The request authorization message is called "Announcement", and the response message is called "Authorization ". 0 and 1 respectively. The formats of announcements and authentication messages are as follows: Struct Silverlightpolicymessage { Byte [

Proxy extensions-implicit proxy and multicast proxy

Agent this thing, really do not want to talk about, is estimated to be an iOS developer can skillfully use, with notification and block, all use of memorized.Here's a little talk about proxy extensions: implicit proxies and multicast proxies are actually very simple.Implicit proxy: It is no longer necessary to abide by the protocol when defining the properties of the protocol, and the class implementing the method is not subject to the Protocol, becau

A simple explanation of Java Socket Network programming multicast and broadcast implementation _java

encode frame frames, by delimiter or length bitto differentiate each frame. Multicast and broadcast We can unicast a copy of the data to each recipient, but this may be very inefficient.Only UDP sockets allow broadcast and multicast, and the difference is that broadcasts are sent to all accessibleHosts, some operating systems may not allow ordinary users to broadcast;

Extension of function (2): Multicast events

In my last post, extension of function (1): inheritance, this function of extended function has been implemented for inheritance. According to the theory of the climbing of the article, I'm going to talk to you about it. Implement multicast events by extending the function. Some friends may be familiar with the listener pattern, and some friends may not know much about them. But for events. I believe almost no one has ever used it. In JS, we tend t

C # Delegation chain, multicast delegation

Delegate chain, multicast delegation: that is, to link multiple delegates together, we have linked multiple methods of the delegate is called a delegate chain or multicast delegationCases:1 classHelloWorld2 {3 //Defining delegate Types4 Delegate voidDelegationchain ();5 Static voidMain (string[] args)6 {7 //using a static method to delegate an instance8Delegationchain myd

Delegated multicast Broadcast

Speak with Instances Using system;Using system. Collections. Generic;Using system. LINQ;Using system. text; Namespace delegated multicast proxy{Public Delegate void muldelegate (string MSG );Class Program{Static void main (string [] ARGs){Messagetest show = new messagetest ();Muldelegate d1 = new muldelegate (show. message1 );Muldelegate D2 = new muldelegate (show. message2 );Muldelegate D3 = new muldelegate (show. message3 ); Muldelegate Dall;Da

Why OSPF is in the broadcast network, DD and LSR are unicast, and LSU Hello is multicast-based.

A: Hello is used to keep a neighbor and does not require each neighbor to replicate a single unicast packet. LSU is the link state with the new, a network segment generally has the DR and Bdr, both of which need to establish a neighbor with R-other and monitor the multicast address of the 224.0.0.6. If LSU sends it out from Drother, not sending it to the multicast address, sending it to unicast will result

iOS UDP multicast

These days in doing WiFi smart lights, need to use the knowledge of multicast to this record, the server is written in Java, the code is as follows:1 Importjava.io.IOException;2 ImportJava.net.DatagramPacket;3 ImportJava.net.DatagramSocket;4 Importjava.net.InetAddress;5 ImportJava.net.MulticastSocket;6 7 classudpserver{8 Public Static voidMain (string[] args)throwsioexception{9MulticastSocket Server =NewMulticastSocket (5050);TenInetAddress addr

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