sdp transmission

Nginx proxy_buffer_size to solve the back-end service transmission data too much, in fact, the header is too big problem These three parameters have been set to fix the amount Proxy_buffer_size 64k; Proxy_buffers 4 32k; Proxy_busy_buffers_size 64k; In the spirit of excellence I turned the official websiteOfficial website explanation In general, I still do not understand. I put out the error message and need it later.Development said nginx502, back-

There are four ways to send data to the GPC server and client, and the startup code of the client startup server is described in the previous article, which will only list the code for the key implementation. 1. The client sends an object, and the server returns an object This approach is similar to the traditional way of HTTP request data, in the previous article there is a simple implementation example, which is no longer described here. 2. The client sends an object, and the server returns a

inspection, found that the switch has a port loop, resulting in high equipment load. (The loop here is not a chain Lu Cheng between switches, instead, the port of the switch is connected to the transmission SDH equipment, the port that transmits the SDH device has the self loop, and if the broadcast packet enters the port, it will be forwarded back again, so that the other ports will receive the broadcast packet two times, and the two broadcast packe

As opposed to TCP, UDP is a non-connected, unreliable transport protocol.If we want to use UDP to achieve reliable transmission, we need to solve two problems: packet loss and post-send first (packet order). Workaround:1) The packet number, according to the order of the packet received and stored;2) The receiving end receives the packet to send the acknowledgment message to the sending side, the sending side receives the confirmation data to continue

block that TCP considers to be sent; (2) When TCP sends a segment, it starts a timer, Used to wait for the destination to acknowledge receipt of this segment; If this acknowledgement is not received in time, the TCP sender will resend the message segment (timeout retransmission); (3) TCP sends a confirmation after receiving a data from the other end of the TCP connection, but this acknowledgement is not sent immediately. Instead, it is deferred for a fraction of a second before it is sent; (

The tutorial uses radial blur to make sunlight transmission. When making a picture of the highlight part of the selection, and then use the Blur filter selection of the appropriate angle blur, and then the overall adjustment of brightness and detail can be. Original Final effect 1, open the original image, implementation: Selection-color range, select High light, click OK; 2. Copy layer. Ctrl + J two times, copy Layer two times. Cla

Server-Side client communication After the connection to the server is established, we can send and receive data through this connection. Ports and ports transmit data in streams, because almost any object can be saved to the stream, so you can actually transfer any type of data between the client and the server. To the client, the data is written to the stream, the data is sent to the server, the data is read from the stream, and the data is received from the service side. For the server, the

Abstract:The study of real-time video network transmission technology is of great significance for video applications. In this paper, an implementation diagram of a real-time video network transmission system is provided. Combined with the principle diagram, the key technologies of the real-time video network transmission system are analyzed: video collection, vi

With the rapid development of video monitoring technology, the customer's requirements for video monitoring products are constantly increasing. The functional requirements are more complete and stable, and the performance requirements are clearer and more accurate. At the same time, how can we see a person's facial features in shopping malls, banks, and other important monitoring sites? How can we find out the license plate of a high-speed vehicle? How can we quickly and accurately find the targ

Differences between synchronous transmission and asynchronous transmission 2 recommended The difference between synchronous and asynchronous synchronization-that is, when you ask me to go to dinner, I will go to dinner with you when I hear it; if I don't hear it, you will not stop calling until I tell you to hear it, to eat together. Asynchronous-you call me and eat it yourself. After receiving the message,

1. Introduction Digital video transmission is a communication method that people use vision to obtain information. Compared with other information transmission methods, digital video transmission is accurate, intuitive, and efficient. Due to the large amount of information transmitted by digital videos and limited bandwidth, the compression and encoding of vide

The total amount of data transmitted or transmitted by a channel per unit of time is called the channel transmission volume. However, in actual application environments, all channels will suffer different losses, we call this loss a channel surplus. In our Integrated Wiring System, effective use of channel surplus can greatly improve network transmission performance. Based on the experimental results, the i

Abstract: With the increasingly mature video compression technology, digital video monitoring products have gradually become the mainstream of the market. People Urgently hope that the network technology can be successfully applied to the field of digital video surveillance, so that people can achieve remote monitoring through the network. In this context, the study of "network-based digital video transmission" is becoming increasingly important. This