The RTP timestamp is calculated at clock rate to represent the time.
RTP timestamp represents the time per frame, since one frame (such as I-frame) may be divided into multiple RTP packets, so that multiple RTP timestamp of the same frame are equal. (The frame can be distinguished by the last
Why does a host inside Nat have access to a Web server outside of NAT, but cannot get RTSP stream Media server stream? Reason: For protocols such as HTTP, the client establishes a socket connection with the Web server, which is monitored by a Web server that binds a fixed TCP port on this port. Clients located behind the NAT randomly select a TCP port connect (2) WEB SERVER. For RTSP streaming media servers, the use of RTP packaging multimedia load, t
RTP over RTSP (TCP) (i)solution for mixed delivery of RTP over RTSP packetsRTSP-RTP over TCP-to-use TCP communication, the need to request TCP connection during RTSP SETUP. The RTSP client needs to request a TCP connection in the setup phase for the sent Setup command with which you want to use a TCP connection. The Setup command should include transport in the f
http://blog.csdn.net/span76/article/details/12913307Offline media only uses the HTTP protocol to read server-side files, and for live broadcast how to achieve, here will use the RTP/RTCP protocolRtp/rtcpRTP is based on UDP protocol, UDP does not have to establish a connection, more efficient, but allow packet loss, which requires more work when re-assembling the mediaRTP is only the parcel content information, and RTCP is the exchange of control infor
This example demonstrates how to use the jrtplib library to encapsulate the RTP protocol in Linux. This routine can be used as a basic routine for streaming media transmission.
Only the source code is provided here (these can be found in the official jrtplib files)
Sender:
/** Sending Program (for Windows and Linux)* For IPv4-based transmission routines, a port number and destination address must be provided.* Reference: http://blog.csdn.net/ipromiseu
Some of the things that have been related to the low-latency transmission of the screen in recent time. Originally wanted to use GStreamer to verify that the RTP over UDP transfer h264 NAL data related, the results found that can not use Playbin to play RTP data! Admittedly, this also has its cause because RTP needs some out-of-band data, which is not simply pass
Above is the Internet multimedia architecture, we first have a overall impression.
RTP (Real-time transport Protocol):
RTP provides end-to-end transport for real-time applications, but does not provide any assurance of quality of service. Multimedia data block after compression code processing, first to the RTP packaging into
VLC plays the. 264 file sent by RTP package1, to have a server that sends RTP packets of 264 files;The specific code is as follows:Rtp.h#include Rtp.cpp #include "rtp.h" #include 2, download VLC;3, make the following settings:1> setting W.SDPA, open Vlc->media->open network streamb,-->network->rtp://@192.168.1.101:1234C,-->file->add...w.sdp->playHere to talk ab
First declare that the following code is in post http://topic.csdn.net/u/20090725/11/5FBC75B0-1091-4DD4-9154-3E3D59F9B6D1.html {Logclickcount (this, 111 );} "Href =" http://hi.csdn.net/ttxk "target =" _ blank ">TtxkAnnotations are added to ttxk and {Logclickcount (this, 111 );} "Href =" http://hi.csdn.net/jessiepan "target =" _ blank "> thank you ,{Logclickcount (this, 111 );} "Href =" http://hi.csdn.net/jessiepan "target =" _ blank "> the study spirit of jessiepan is very good, very responsible
Directly go to the topic. After JPEG compression, the data is transmitted to the network through the RTP/RTCP protocol. This topic uses the RTP/RTCP protocol stack of jrtplib, first, obtain the source code of the jrtplib package on the internet, decompress the configuration, compile and install the package, and OK if no bugs is available.
There are several examples in the source code package, which can be u
# Ifndef _ h_rtpheader
# DEFINE _ h_rtpheader
/* ++V-version. Recognize the RTP version.P-gap (padding ). When this parameter is set, the data packet contains one or more additional gap groups, which do not belong to the payload.X-extended bit. When setting, after the Fixed Header, set an extension header according to the specified format.CSRC count-the number of the CSRC identifier (after the Fixed Header.M-mark. Mark defined by the profile file. Al
Video
1
90000
ITU-T H.261 video
RFC 4587
32
MPV
Video
1
90000
MPEG-1 and MPEG-2 video
RFC 2250
33
Mp2t
Audio/Video
1
90000
MPEG-2Transport Stream Video
RFC 2250
34
H263
Video
90000
H.263 video, first version (1996)
RFC 3551,RFC 2190
Dynamic
H263-1998
Video
90000
H.263 video, second version (1998)
RFC 3551,RFC 4629,RFC 2190
Dynamic
H263-2000
Video
900
real-time audio and video domain UDP is the kingly
The Transport layer scheme for real-time audio and video interaction on the Internet has two types: TCP (e.g. RTMP) and UDP (e.g. RTP). The TCP protocol provides a relatively reliable guarantee for data transmission between two endpoints, which is achieved through a handshake mechanism. When the data is passed to the receiver, the receiver checks the correctness of the data. The sender only receives t
RFC3984 is the specification of H. Baseline streaming in RTP mode, where only fu-a subcontracting is discussed, as the work is just used, it is written down.
Fu_a a kind of fragmented packet, is to encapsulate an oversized Nalu unit into a plurality of RTP packets, which is different from the previous kind of single nalu encapsulated into a single RTP package, of
3. Dynamic Distribution and implementation of cache areas.
Based on this fact, the audio data is much smaller than the video data. Therefore, the audio buffer and the video buffer are managed separately. According to statistics, the RTP data packet size of the same media stream is similar. For example, the audio size is about several hundred bytes, and the video size is 1.3 Kbytes. The video buffer is divided into two parts. Some are in the Active Dat
We have been able to get video or camera data in the last issue, and we can get the frame data, then we will study RTP in this period and send the data to the target server.
Introduction to RTP protocol This is very good for friends: http://blog.csdn.net/bripengandre/article/details/2238818
RTP.NET.dll
Core code Explanation
Real-time Transport protocol
Real-time Streaming protocol RTSP (Realtimestreamingprotocol) is proposed by RealNetworks and Netscape, which defines how a one-to-many application can efficiently transfer multimedia data over an IP network. RTSP is located on the architecture of RTP (real-time transmission) and RTCP (real-time control), which uses TCP or RTP to complete the data transfer. HTTP transmits HTML compared to RTSP, while
The SIP protocol and some of its applications are worth learning. In this regard, we will explain the configuration of rtp sip today. SIP (Session Initiation Protocol) is usually used for VOIP calls, call establishment, call negotiation, and call termination. it helps two terminals to recognize each other, but it does not process media. When A call is established, it directly transmits media through real-time transmission protocol (
NTP------Network Time ProtocolPTP------Precise Time ProtocolAll know the RTSP protocol, the real data transmission is the RTP protocol to transmit, each RTP packet has a timestamp, (relative timestamp relative timestamp) This timestamp needs to be converted, I need to convert it to the appropriate time to print to each frame displayed by the player.But according to HTTP://STACKOVERFLOW.COM/QUESTIONS/2009499
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