Stack Overflow
Stack Overflow

Questions tagged [rtcp]

**RTP Control Protocol** (RTCP) is a helper protocol for *Real-time Transport Protocol* (RTP).

It is used to gather statistics about RTP sessions and to control the RTP flow. It does not transport multimedia data itself.

Example control message (which names show RTCP purpose): Sender Report (SR), Receiver Report (RR), Source Description (SDES), End of participation (BYE).

Detailed documentation can be found in part of RFC 3550 (RTP: A Transport Protocol for Real-Time Applications) which describes RTCP.

More information at http://en.wikipedia.org/wiki/RTP_Control_Protocol

75 questions
0
votes
0 answers

No receiver reports generated on RTP multicast via vlc

I have been trying to stream via RTP and RTSP using vlc. The strange thing is that when streaming is done via RTSP (unicast), RTCP generates both Sender Reports and Receiver Reports, but when streaming is done via RTP multicast only Sender Reports…
Abhinav Deep Singh
  • 1
  • 1
0
votes
1 answer

Find RTP/RTCP after SIP/SDP

I am working on a packet capture program to analyze RTP/RTCP traffic. The traffic is in mobile network, e.g., the VoLTE. I understand that I need to search in the SIP/SDP packets first to get the actual addresses and port numbers used in RTP/RTCP.…
user2847598
  • 1,247
  • 1
  • 14
  • 25
0
votes
1 answer

Extracting a timestamp from a RTCP Packet Sender Report

I'm using tcpdump in the manner described here http://www.erg.abdn.ac.uk/multicast/tools_notes/tcpdump.html#rtp to extract RTCP packets between my browser and a media server I have running. Some example data: 192.168.56.1.55281 >…
edibleEnergy
  • 1,739
  • 1
  • 13
  • 15
0
votes
0 answers

pc.createanswer fails to execute

// Set getUserMedia constraints var constraints = {video: true, audio: true}; // From this point on, execution proceeds based on asynchronous events... // getUserMedia() handlers... var…
abcd
  • 95
  • 2
  • 8
0
votes
2 answers

RTCP communication (sip client-IMS server)

I am testing a setup with one sip client (tested with sipp and a softphone) and an IMS server that auto answers (so it is a two way RTP-communication between those 2 network elements). In RTCP, must both the two entities communicating in such a…
John
  • 359
  • 4
  • 19
0
votes
1 answer

Duplex RTP connection estabilished in JMF when called from one side but comes unreachable port when called from other side

I have used JMF to transmit and receive audio for an application using JAIN-SIP and below is my code: import com.sun.media.rtp.RTPSessionMgr; import java.io.IOException; import java.net.InetAddress; import java.net.URL; import…
Manish
  • 1,999
  • 2
  • 15
  • 26
0
votes
1 answer

Does pjsip support application-specific RTCP packets?

I'm writing an application using pjsip and I need to receive application-specific RTCP packets. I'm looking at the implementation of pjmedia_rtcp_rx_rtcp (in pjmedia/src/pjmedia/rtcp.c) and it only seems to handle certain RTCP packets and does not…
Greg Hewgill
  • 951,095
  • 183
  • 1,149
  • 1,285
0
votes
1 answer

RTCP Transmission Intreval

can any body please explain what is the RTCP Transmission Intreval ? I read some material on internet at http://www.ietf.org/rfc/rfc3550.txt but I think I should go for basic concepts,So please if anybody knows some sites to learn this things…
Sarfraj
  • 312
  • 1
  • 5
  • 16
0
votes
2 answers

RTP: SSRC collision detection in unicast sessions

From RFC 3550: If a receiver discovers that two other sources are colliding, it MAY keep the packets from one and discard the packets from the other when this can be detected by different source transport addresses or CNAMEs. The two sources…
gavv
  • 4,649
  • 1
  • 23
  • 40
0
votes
1 answer

Problems in implementing responce for RTSP's SETUP request

I'm implementing simple RTSP server that should stream mjpeg over rtsp. The first problem I faced was the "hanging" RTSP client (i tried vlc and openRTSP) when I respond with some response data: buffering issue with java communicating vlc However,…
Eljah
  • 4,188
  • 4
  • 41
  • 85
0
votes
1 answer

Is RTP suitable for delivery of data files to multiple recipients?

I have a need to transfer files from a single, centralized source to a several hundred client machines. We currently use UDPCast to do this sort of thing, but are looking for more of a standards based approach to solving the problem. I have been…
Steve Hawkins
  • 1,433
  • 4
  • 17
  • 24
0
votes
1 answer

RTSP Proxy implementation and testing

I'm trying to implement an RTSP proxy server in order to analyse RTCP packets and dynamically switch to higher or lower bitrate streams (served by Wowza). Can someone recommend an existing opensource proxy (Java) and a client that allows me to set…
Rui
  • 5,900
  • 10
  • 38
  • 56
0
votes
0 answers

xuggler rtcp streaming

can anyone tell me how can I create an rtcp stream with use of xuggler(without use RED5) . I use the MEDIATOOL api ant IMEdiaReader to decode the saved video container, but how can I stream in the rtcp? I see that I can't throw an IMediaWriter. I…
javment
  • 368
  • 1
  • 5
  • 17
0
votes
0 answers

RTSP Media player crash

I am testing (RTSP/RTP/RTCP) streaming from my with HTC one X. After finishing the RTSP session I see UDP packets reaching ports and after few seconds, a fin ack from the mobile (in wireshark logs) for the RTSP port (550 in my case). While debugging…
Androidnewbie
  • 1
  • 1
0
votes
1 answer

How to intercept packets from RTP-stream on loopback and access the data through C++-code?

I want to be able to intercept the packets of this stream and access the data from C++-code. How do I do this in C++-code? The RTP- media stream are streamed using this server: link I will then FEC-encode the packets; send them over the network;…
Anders Branderud
  • 1,878
  • 6
  • 29
  • 45
1 2 3 4
5