1. Introductionwith the development of information industry, people's demand for information resources has been gradually transition from text and pictures to audio and video, and more and more emphasis is placed on the real-time and interactivity of acquiring resources. But people are faced with another unavoidable embarrassment of having to spend a lot of time waiting to transfer files while seeing vivid and clear media demonstrations on the web. In order to solve this contradiction, a new med
One, RTP (real-time transmission protocol) The RTP full name is the real-time Transport Protocol (real-time transport protocol), and the RTP protocol is commonly used in streaming media systems (with RTCP protocol or RTSP protocol). Because RTP itself has time stamp, it is used as a formate in FFmpeg. Each
RTP (Real Time Transport Protocol)
RTP is a transmission protocol for multimedia data streams over the Internet.Rfc1889Release. RTP is defined to work during one-to-one or one-to-many transmission. It aims to provide time information and implement stream synchronization. Typical RTP applications are built on UDP, but
Real-time transmission protocol RTP (Realtime Transport Protocol) is a transmission protocol for multimedia data streams over the Internet. It is published by IETF (Internet Engineering Task Group) as rfc1889. RTP is defined to work during one-to-one or one-to-many transmission. It aims to provide time information and implement stream synchronization. Typical RTP
Streaming media transmission, video monitoring, video conferencing, and VoIP are all inseparable from the application of the RTP protocol, but when everyone chooses the RTP protocol based on experience or other people's applications, you may have wondered why we should use RTP for streaming media transmission? Why must we use
Http://blog.sina.com.cn/s/blog_488365030100ccp8.html
1Real-time audio and video transmission
1.1JrtplibLibrary Introduction
The system uses the open-source database jrtplib to develop the RTP transmission module. Jrtplib is a fully open-source RTP Library developed by EDM (expertise centre for digital media) of Hasselt University in Belgium and implemented in C ++, currently, it can run on Windows, Linux, F
Implementation principle: RTP protocol-based video transmission system: Principle
Related articles:
"1" RTP protocol analysis
Introduction to "2" jrtplib
"3" QT call Jrtplib for unicast, multicast, and broadcast
"4" RTP Payload (payload) type, RTP Payload type
Production of "5" (H264) video files
"6" Format analysis
"7
download, just a few seconds to a few 10 seconds to play and watch on the client. The remainder of the media file will continue downloading in the background. Compared with the simple way of downloading, this kind of streaming mode is not only shorten the startup delay greatly, but also reduce the demand of the system cache capacity. Another benefit of using streaming is that it makes it possible to transmit media data (such as live webcast, video conferencing, etc.) that are not known or sized
With the rapid development of the Internet, streaming media technology has become more and more widely used. streaming media technology has been used for broadcasting on the internet, playing movies, remote teaching, and online news websites. However, most of the information reported in the existing public documents is the use of the existing Streaming Media Server to build a streaming media service system, or the research on the encoding method of streaming media data. This article focuses on h
Streaming media refers to the continuous time-based media transmitted using stream technology in the network. It features that the entire file does not need to be downloaded before playback, but is played by downloading and playing, it is the technical basis for video conferences, IP phones, and other applications. RTP is a standard protocol and Key Technology for Real-Time Streaming Media transmission. This article describes how to program Real-Time
Http://www.cppblog.com/czanyou/archive/2008/11/26/67940.html
H.264 video RTP load format
1. Network abstraction layer unit type (NALU)
The NALU header consists of one byte. Its syntax is as follows:
+ --------------- +| 0 | 1 | 2 | 3 | 4 | 5 | 6 | 7 |+-+| F | NRI | type |+ --------------- +
F: 1 bit.Forbidden_zero_bit. The H.264 specification specifies that this digit must be 0.
NRI: 2 bits.Nal_ref_idc. 00 ~ 11. It seems to indicate the importance of
coding standards jointly developed by a Joint Video group (JVT) consisting of the ITU-T video coding Expert Group (VCEG) and the ISO/IEC dynamic image Expert Group (mPEG, its biggest advantage is its high data compression ratio. h. 264 of the compression ratio is more than 2 times of the MPEG-2, is the MPEG-4 of 1.5 ~ 2 times. At the same time, the video encoding layer (VCL) and network extraction layer (NAL) are used.The hierarchical design is very suitable for real-time transmission of stream
-time multimedia transmission. RTP is an application-oriented transport layer protocol that does not provide any guarantee of Transmission reliability and traffic congestion control mechanisms. RTP is located on top of UDP (User datainprotocol. Although UDP is not as reliable as TCP and cannot guarantee the service quality of real-time services, RTCP needs to monitor data transmission and service quality in
RTP and Rtcp explain. Include sync timestamp
RTP is real-time transport protocol abbreviation, is designed to transmit streaming media data, has a wide range of applications, other related to the introduction of their own to see the RFC, I do not intend to discuss these boring conceptual things.
(1) Understanding RTP
It can be said that the
Http://www.chinaitlab.com/cisco/RIP/832426.html1. IntroductionAt present, the realization of real-time voice, video communication and application in IP network has become a mainstream technology and development direction of network application, this paper introduces the standard protocol RTP for real-time voice and video data transmission in IP protocol family (real-time Transport Protocol) and RTCP (RTP Co
The data in the live555 is sent in the end to be sent using the RTP protocol, which describes the RTP package format.RTP PacketRTP is based on the UDP protocol, and the RTP server passes the UDP protocol, typically sending an RTP packet each time. The client reads the data and then plays it by parsing the
(1) Introduction to concepts
RTP (Real-Time Transport Protocol) is defined as a transmission protocol for transmitting real-time data, such as audio, video, and analog data, compared with the traditional high-reliability data transmission transport layer protocol, it focuses more on real-time data transmission, services provided by this Protocol include data sequence numbers, time tags, and transmission control. R
I was recently depressed by the load type and timestamp of RTP. After debugging for nearly a week, I finally solved the problem. Let's look back, I found that the main reason is that I did not really understand the meaning of the load type and timestamp in the RTP protocol. Although RTP transmission is supported by Jrtplib and Ortp databases, one is the c ++ inte
terminate a session Process attended by one or more participants. Compared with H.323, SIP is simpler, more flexible, and easier. Has gradually become the focus of attention. currently, many organizations have implemented the SIP protocol stack and made it open-source for developers to use it conveniently and quickly, such as open-source projects such as Osip and resiprocate, these open-source code implements the SIP protocol stack according to the rfc3261 and other sip-related standards. Base
[GO] Streaming Media protocol introduction (RTP/RTCP/RTSP/RTMP/MMS/HLS)http://blog.csdn.net/tttyd/article/details/12032357RTP reference Documentationrfc3550/rfc3551Real-time Transport Protocol) is a Transport layer protocol for multimedia traffic on the Internet. The RTP protocol details the standard packet format for transmitting audio and video over the Internet. RTP
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