H. rtppayload format------H. A video RTP payload format1. Network Abstraction Layer Unit type (NALU)The Nalu header consists of a byte with the following syntax:+---------------+|0|1|2|3|4|5|6|7|+-+-+-+-+-+-+-+-+| F| nri| Type |+---------------+F:1 bits (no bit).Forbidden_zero_bit. This one must be 0, as stipulated in the H.Nri:2 a bit.NAL_REF_IDC. taking 00 ~ 11, it seems to indicate the importance of this nalu, such as 00 of the Nalu decoder can dis
Turn from: http://blog.csdn.net/jwybobo2007/article/details/7054140
Network Abstraction Layer Unit type (NALU):
The Nalu header consists of a byte, and its syntax is as follows:
+---------------+|0|1|2|3|4|5|6|7|+-+-+-+-+-+-+-+-+| F| nri| Type |+---------------+
F:1 a bit.Forbidden_zero_bit. The H.264 specification stipulates that this one must be 0.
Nri:2 a bit.NAL_REF_IDC. Taking 00~11 seems to indicate the importance of this nalu, such as a 00 NALU decoder that can discard it without affecti
Last time I talked about the XMPP protocol, this encounters another protocol, RTP. xmpp:http://blog.csdn.net/shinichr/article/details/23832157
Concept:
RTP English name is real-time Stream Protocol, as the name implies a very high real-time protocol. This protocol is similar to the HTTP protocol, which is plain text to send the message, the difference is that RTP
In network transmission, let's cut down the RTP protocol. Let's take a brief look at some definitions and concepts of this Protocol. Real-time transmission protocol (RTP) provides end-to-end transmission services with Real-Time Characteristics for data, such as interactive video audio or analog data under multicast or Unicast Network Services. Applications usually run R
Network Abstraction Layer Unit type (NALU):The Nalu header consists of a byte with the following syntax:+---------------+|0|1|2|3|4|5|6|7|+-+-+-+-+-+-+-+-+| F| nri| Type |+---------------+F:1 a bit.Forbidden_zero_bit. This one must be 0, as stipulated in the H.Nri:2 a bit.NAL_REF_IDC. Taking 00~11, it seems to indicate the importance of this nalu, such as 00 of the Nalu decoder can discard it without affecting the playback of the image.Type:5 a bit.Nal_unit_type. The type of this NALU unit is su
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
RTP (Real-time Transport Protocol) defines the standard packet format for sending videos and audios Based on the IP network. RTP and RTCP (RTP Control Protocol) work together. RTP carries media streams, while RTCP is used to monitor transmission statistics and Quality of Service (QoS) and assist in synchronization of m
RTP/RTCP/RTSP/SIP/SDP relationship1. RTPReal-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-talk
The Code
In this lab you will implement a streaming video server and client that communicate using the Real-Time Streaming Protocol (RTSP) and send data using the Real-Time Transfer Protocol (RTP ). your task is to implement the RTSP protocol in the client and implement the RTP packetization in the server.
We will provide you code that implements the RTSP protocol in the server, the
This document describes a suitable for bundling, MPEG-2 encoding, RTP protocol can be applied to the video and audio frequency
The payload type of the data. This is the second version. For this type of payload, when it is used in a VoD application system,
Bundling has obvious advantages. This advantage is important enough to sacrifice the modularization of the separated audio video streams.
This type of payload may be used.
1. Introduction
This docume
H264 RTP Header Parsing ProcessCombined with naldecoder. c Analysis
Protocol Analysis: Each RTP datagram consists of the header and payload. The meaning of the first 12 bytes of the header is fixed, the load can be audio or video data.
The parameter set of the active sequence remains unchanged in the same encoding video sequence, and the parameter set of the active image remains unchanged in the same e
Http://bbs.chinavideo.org/viewthread.php? Tid = 7575
I believe many of you want to play h264 video streaming media like me. However, a newbie often does not know where to start. Using Baidu, Google, and other search materials is a treasure. After N weeks of thinking, I made some achievements. It took a lot of useless effort. I spent a week watching the English protocol, and later I learned that there was a Chinese version, in addition, the goal I have achieved is very simple, as long a
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
1. RTP speex Header
The RTP Header is defined in [rfc3550. This document defines the usage of fields in the RTP Header.
Payload type (PT): the charge type number in this format.
Marker (m) bit: this bit is used to mark the beginning of a silent sound. Place it on the first package of the audio data. Speex supports sound detection and does not generate frame da
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
Hostzhu comment: mplayer's support for streaming media allows you to use Linux to view live webcast. The promotion of multimedia applications in Linux is not measurable.RTSP/RTP streaming support for mplayerThe Open Source "mplayer" Media Player can now receive and play standards-compLiant RTP audio/video streams, using the "live555 Streaming Media" source codeLibraries.* For example, mplayer can be used to
Https://github.com/whtang/GoRTPGORTP implements some important functions that modify the head and contents of the RTP packet. Most, however, handle only the payload and timestamp of the RTP packet.RTP Data groupingThe packet module implements a buffering mechanism that allows for missed calls, which reduces the dynamic allocation request for memory. Although not necessary, it is recommended that freepacket
Transferred from: http://blog.csdn.net/jasonhwang/article/details/7316128The 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
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