dynamically, the routes selected by each group may be different, so the delay in reaching the client may not be the same, even the first data group may arrive later. Therefore, the cache system is used to compensate for the impact of latency and jitter, and ensure that the Group order is correct, so that the media data can be output continuously without pausing the video due to temporary network congestion.
Suitable transmission protocols are required for streaming media transmission. Because
delivery technologies mainly fall into two categories: connection-oriented streaming media technologies represented by RTSP/RTP (Real Time Streaming Protocol/Real Time Transfer Protocol, another type is the connectionless HTTP progressive download of mainstream video websites.
1. RTSP/RTP Streaming Media Solution
RTSP is a traditional streaming media control protocol. Its Status indicates that the server
generally requires 2-3 channels, command and Data channel separation, HTTP and rtmp generally on a TCP channel to transmit commands and data.RTSP, RTCP, RTP differences1:RTSP Real-Time Streaming protocolAs an application-level protocol, RTSP provides an extensible framework that makes it possible to control and on-demand real-time streaming media data. In general, RTSP is a streaming media representation protocol that is primarily used to control dat
does not have a specific stream.5:RTSP transmission generally requires 2-3 channels, command and Data channel separation, HTTP and rtmp generally on a TCP channel to transmit commands and data.RTSP, RTCP, RTP differences1:RTSP Real-Time Streaming protocolAs an application-level protocol, RTSP provides an extensible framework that makes it possible to control and on-demand real-time streaming media data. In general, RTSP is a streaming media represent
RTP (real-time transport protocol) is generally less of a separate use, and it typically runs with other protocols. For example, RTSP (real-time Streaming protocol) it contains both the RTP,RTCP and the RTSP protocol inside. However, in some systems with very few system resources, the independent use of RTP protocol becomes more and more important. The
RTP (real-time transport protocol) is generally less individual use, it will normally run with other protocols. For example, the RTSP (real-time streaming transport protocol) contains both the RTP,RTCP and RTSP protocols. However, in some systems with very few resources, the independent use of RTP is more important. The RTP
preemption and assigns some empty radix_tree_node structures to the radix_tree_preloads variable per CPU. The allocation of the radix_tree_node structure is completed by the Slab High-speed cache radix_tree_node_cache. If the structure of the radix_tree_preload () pre-allocated radix_tree_node is unsuccessful, the add_to_page_cache () function terminates and returns the error code-enomem. Otherwise, if radix_tree_preload () is successfully pre-allocated, the add_to_page_cache () function will n
These days have been reading Zhou Hongyi's "My Internet Methodology" This book, the book style is simple, humorous, feel like the author face in-person conversation. It is important that the content of the book is full of Internet dry goods, from the thinking mode to the method of practice, people benefit a lot. After reading, my biggest experience is eight words: Product for the king, the user is supreme, the service wins.Although the title added "Internet" qualifier, but think carefully, wheth
XIII: rtpinterface details
I haven't written a blog for several days. Looking at the source code is really tiring. I need to write my understanding on paper and organize chaotic ideas. This is a headache, so I need passion. But today, passion is coming again.
You should have understood the groupsocket class. Theoretically, the classes that need to operate UDP socket should store groupsocket instances. But this is not the case. You can check rtpsink, rtpsource, rtcpinstance, and so on. None of t
to generate multiple bitstreams with different bit rates and image sizes. Then, you can select the most suitable bitstream for transmission. The generated code streams need to be further packaged into packets of specific network transmission protocols for network transmission. Because many networks do not guarantee that the transmitted data can be received in a timely and completely correct manner, the transmitted data packets may need to be protected by forward correction encoding (FEC). After
Vxworks5.5 can only create a static library (. a). After vxworks6.0, the dynamic link library (. So) function is added to facilitate multi-process use of dynamic libraries. This article inherits the consistent style of Win32 and Linux programming, uses a simple dynamic library generation step, and writes the RTP program for testing. This gives you a preliminary understanding of the powerful functions of vxworks6.6, at the same time, we also noticed th
(sdpDescription)) { delete newSession; return NULL; } } return newSession;}
Initializewithsdp creates a session based on sdp.
However, we didn't see the establishment process of RTP socket. However, in continueafterdescribe, we saw subsession-> initiate (simplertpoffsetarg)
Boolean mediasubsession: Initiate (INT usespecialrtpoffset) {If (freadsource! = NULL) return true; // has already been initiated do {If (fcodecname = NULL) {ENV ().
If the power of a person is limited, the power of the network is infinite. The purpose of studying h264 is to customize a streaming media player to play videos in real time.
Fortunately, there are a lot of online cool people standing on the shoulders of giants, and the pressure will be much lower.
Overall Player Design Scheme
Generally, the overall player design includes three stages:1) obtain media data2) decoding Audio and Video Streaming Media3) display decoded media data to the user
Layer-ba
Real Time Streaming Protocol or RTSP (Real-Time Streaming Protocol) is an application layer protocol jointly proposed by real network and Netscape to effectively transmit streaming media data over an IP network. RTSP provides an extensible framework that enables controllable and on-demand transmission of real-time data, such as audio and video files. The source data can include on-site data feedback and stored files. RTSP provides control for streaming media such as pause and fast forward, but i
inbound interface riority-list {list -number} interface {interface} {high | medium | normal | low} 2. defines the default priority queue. unclassified datagram is sent here. The default level is normalpriority-list {list-number} default {high | medium | normal | low} 3. defines the number of data entries in each queue, from high to low. The default value is 20, 40, 60, 80priority-list {list-number} queue-limit {high-limit medium-limit normal-lim It low-limit} 4. use the priority-group {list-num
, here you just want to find the answer to "How to use MySQL to solve it ), you can directly read section 1.2.
In essence, the database system is an efficient way to manage a large amount of list information. The information may come from a variety of sources. It may be research data, business records, customer needs, sports statistics, sales reports, personal information, personnel files, bug reports, or student scores. The time to take advantage of the power of the database system is that the
Internet + Medical is a very big topic, and the medical service in favor of consumer medicine has ophthalmic, dental and medical and other major professional. In the current environment, the existence of institutions, information blocking user decision-making difficulties slow pain point, so the medical beauty began, consumer medicine into the information aggregation and trading platform layout period. in the current issue of Apptalk ,testin Cloud sur
HospitalScroll:1. Perform regular blood pressure tests. Many complications of high blood pressure, especially the probability of death or disability caused by cerebrovascular accident is higher, people over 35 years old should carry on regular blood pressure examination.2. Eat more food with high phospholipids. These foods are one of the "energy" of the brain. such as egg yolk, shrimp, walnuts, peanuts, oysters, squid, silver fish, herring contain higher phospholipids.Mined area:Excessive absor
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