rtp internships

The reprinting of jrtp is described in detail. I have been studying RTP for several days. I will summarize it today.For the establishment of the jrtplib environment, see my previous summary. Now I will mainly talk about how to learn example under jrtplib3.71.I. sample is a simple IPv4 column that implements RTP data transmission on the local machine.1. initialization.We know that

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 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 play

RTP/RTCP/RTSP/SIP/SDP RelationshipRTP (real-time transport protocol, Transport layer)Real-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 pr

Play captured h263 RTP video 1. Use ethereal/Wireshark to capture RTP data packets and select the h263 filter condition to save2. Statistics/RTP streams/streams Analysis3. Save payload select to save raw data4. Use ffplay to play ffplay-F h263 File Play RTP audioHttp://www.ethereal.com/lists/ethereal-users/200401/m

Normally, RTSP provide streaming over UDP. By nature, UDP are a better choice as it provides robust streaming capability for media. However, it's unlikely to use UDP for streaming over the Internet.Typically, RTSP provides a UDP way to send RTP streams. Of course, UDP is often a better choice when sending streaming media.However, it is not possible to send a stream using UDP on the Internet. Some issues with UDP is the following are some problems when

Use of open-source RTP-jrtplib (2)I have been studying RTP for several days. I will summarize it today. For the establishment of the jrtplib environment, see my previous summary. Now I will mainly talk about how to learn example under jrtplib3.71. I. sample is a simple IPv4 column that implements RTP data transmission on the local machine. 1. initialization. We k

stream. (4) The streaming media server uses the RTP/UDP protocol to transmit audio/video data to the client. Once audio/video data arrives at the client, the audio/video client program can play the output. It should be noted that in stream transmission, two different communication protocols, RTP/udp and RTSP/tcp, are used to establish a connection with the Streaming Media Server, this is to redirect the se

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 this naluFor example, 00 NALU decoder can discard it without affecting image playback. This attribute. Type: 5 bits.Nal_unit_type. Type of the NALU unit.

is a sequence parameter set (SPS), image parameter set (PPS), enhanced information (SEI). b. H. Video RTP payload Format 2.1. Network Abstraction Layer Unit type (NALU) The Nalu header consists of a single byte, which is in the following format: Description : F:1 bit. Forbidden_zero_bit. This one must be 0 and set to 1 to indicate a syntax violation in the H. Nri:2 bit. NAL_REF_IDC, taking 00 ~ 11, indicates the importance of this nalu, indicating t

Session. begindataaccess (); If (session. gotofirstsource () {do {rtppacket * packet; while (packet = session. getnextpacket ())! = 0) {cout For the establishment of the jrtplib environment, I can refer to my previous summary. Now I will mainly talk about how to learn example under jrtplib3.71. I. sample is a simple IPv4 column that implements RTP data transmission on the local machine. 1. initialization. We know that

Session. begindataaccess (); If (session. gotofirstsource () {do {rtppacket * packet; while (packet = session. getnextpacket ())! = 0) {cout For the establishment of the jrtplib environment, I can refer to my previous summary. Now I will mainly talk about how to learn example under jrtplib3.71. I. sample is a simple IPv4 column that implements RTP data transmission on the local machine. 1. initialization. We know that

set (SPS), image parameter set (PPS), and enhancement information (SEI ). Ii. Detailed explanation of h264 RTP packets --- reprint 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 specific

the following data information is a sequence parameter set (SPS), image parameter set (PPS), enhanced information (SEI). Second, H264 RTP package Detailed---reproduced H. A video RTP payload format 1. 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.Forbidd

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 RTP on UDP to use its multi-node and verification service. Both protocols provide the transport layer protocol function. However, RTP