(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
RTP 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 protocols are commonly used in streaming media systems (with the RTCP protocol), video conferencing and a Push-to-t
1. Network Abstraction Layer Unit type (NALU)Nalu is H264 used for network transmission of the unit type, a complete Nalu unit is generally 0x000001 or 0x00000001 start, followed by Nalu head and NALU data; When we were transmitting in the network, Will remove the start 0x000001 or 0x00000001, and you will typically need to replace them with the head of the RTP payload (1 bytes);Where NALU data is rbsp data;The Nalu header consists of a byte with the
Here we will mainly analyze the content about RTP packaging and sending in live555. After the play command is processed, the RTP packet is sent. (In fact, a RTP packet will be sent before the response packet of the play command is sent, and the transfer has started here)The RTP packet is sent starting from the call of
For customers to develop a set of Keane TM-3000 measuring instrument supporting management system, good feedback. If anyone needs a custom development, you can contact me, [email protected]First introduce the Keyence company's TM-3000 laser measuring instrument, the official product homepage is: http://china.keyence.com/products/measure/micrometer/tm-3000/index.j
http://blog.csdn.net/tttyd/article/details/12032357RTPReference documentsrfc3550/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 protocols are commonly used in streaming media systems (with the RTCP protocol), video conferencing and a Push-to-
Warning: The original page of this article http://www.cnblogs.com/moonvan/archive/2011/09/11/2173448.htmlOn the basis of a slight modification, if there is infringement, please notify the deletion, thank you!Streaming Media Protocol
There are two main ways to transfer audio and video information on the Internet today: Download and streaming.
In the case of download, the user needs to download the entire media file locally before the media file can be played.
Streaming refers to
Webstorm Part 3000 is already In use, webstormalready
We often encounter this situation when using webstorm. The reason is:① When we run a project on a port and other projects on the port at the same time② Close the webstorm window without stopping the same project and open the project runtime again
At this time, there is a 10 thousand solution, that isRestart your computerHaha!~~
Joke. Of course, the process on this port can be stopped.Open cmdTy
I wrote an article earlierArticleAnalysis of the format of using RTP for h264 packets: RTP encapsulation of h264. However, it seems that the split and some situations that need attention are not clearly stated, so here we will make a supplement and also serve as our own memo (I don't seem to have a good memory ).
note that the sampling rate of h264 is 90000Hz, so the unit of the timestamp is 1 (s
=====================================================Audio-visual data Processing Primer series articles:Getting started with visual audio data processing: RGB, YUV pixel data processingGetting Started with AV data processing: PCM Audio sampling data processingGetting Started with AV data processing: Analysis of video stream in H.Getting Started with AV data processing: AAC audio bitstream parsingGetting Started with AV data processing: FLV Encapsulation Format parsingGetting Started with AV dat
Recently made video codec part, transmission using RTP protocol. Make a record of learning1. Introduction The real-time Transport protocol (real-time Transport Protocol or abbreviated RTP) is a network transport protocol, which is a multimedia transmission by the IETF Working Group 1996 in RFC Published in 1889. RTP is defined as a transport protocol for transmi
in streaming media technology.H.264/AVCIt is a new generation of video 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 layer design of the video encoding layer (VCL) and network extraction layer (
AMD's 3000+ products have been the vast number of consumers are very concerned about the product, but because of its series, type very much, many consumers are not clear, often be a lot of JS use, to confuse consumers. Recently, a netizen for us to share the type of 3000+ products, recommend to you:
Socket 462 3000+:
Specifications
Core code
Up to 3000 of the database is MSSQL, the backup database is actually used after the backup databases command files and then compressed with makecab, in fact, the mszip format, after the addition of the following file header obtained.
A.----------------4C.SuperData SQL Server Backup File hex text +
02 00//This is also unknown +
The database version number of the 4-byte set, such as 08 00 00 00, is SQL2000 's SQL2008, 0A 00 00 00.4-byte set
The Header Format of RTP is as follows:
Version Number (V): 2 bits, used to mark the RTP version used.
Fill bit (P): 1 bit. If this position is set, the end of the RTP package contains additional fill bytes.
Extended bit (x): 1 bit. If this location is used, an extended header is followed by a fixed RTP Header.
CSRC co
RTP packet: a packet with an RTP header on the start, that is, RTP packet. Generally, in the bottom layer protocol, a packet contains only one RTP packet, but through some special encapsulation methods, the bottom layer packet can also contain more than one RTP packet.
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