Question on RTP and RTSP

[Soyoung Lee]

Dear experts,

I wonder what is the difference between RTP and RTSP.
In my understanding, RTP is used for real-time voice and streaming service.
Then, what is the RTSP?

Thanks in advance.
===========================
Soyoung Lee
LG Electronics Inc. Korea

e-mail: ***@lge.com
phone: [phone]
fax: [phone]
===========================

[Matthew Romaine]

A quick search on Google (<0.5seconds), revealed this helpful link:

http://www.rtsp.org/2001/faq.html#rtp_rtcp_rtsp

8. What is the relationship between RTP, RTCP and RTSP?
RTP is a transport protocol for the delivery of real-time data,
including streaming audio and video. RTCP is a part of RTP and helps
with lip synchronization and QOS management, among others. RTSP is a
control protocol for initiating and directing delivery of streaming
multimedia from media servers, the "Internet VCR remote control
protocol". RTSP does not deliver data, though the RTSP connection may be
used to tunnel RTP traffic for ease of use with firewalls and other
network devices. RTP and RTSP will likely be used together in many
systems, but either protocol can be used without the other. The RTSP
specification contains a section on the use of RTP with RTSP.



-----Original Message-----
From: avt-***@ietf.org [mailto:avt-***@ietf.org] On Behalf Of
Soyoung Lee
Sent: Tuesday, October 29, 2002 2:18 PM
To: avt
Subject: [AVT] Question on RTP and RTSP

Dear experts,
 
I wonder what is the difference between RTP and RTSP.
In my understanding, RTP is used for real-time voice and streaming
service.
Then, what is the RTSP?
 
Thanks in advance.
 ===========================
  Soyoung Lee
  LG Electronics Inc. Korea

  e-mail: ***@lge.com
  phone: [phone]
  fax: [phone]
===========================
 

[Magnus Westerlund]

Hi,

The easiest way of answering your question is to go read the
introduction of RTSP in the specification, see RFC 2326. But in a few
sentence. Real Time Streaming Protocol (RTSP) is a control protocol. It
acts like your VCR remote but over the Internet. RTSP controlled
sessions commonly use RTP for data transport, but also other protocol
can be used.

Regards

Magnus

Post by Soyoung Lee
Dear experts,
I wonder what is the difference between RTP and RTSP.
In my understanding, RTP is used for real-time voice and streaming service.
Then, what is the RTSP?
Thanks in advance.
===========================
Soyoung Lee
LG Electronics Inc. Korea
phone: [phone]
fax: [phone]
===========================

[BUYCK Jacky FTRD/DMI/CAE]

Hi.
From what I've seen during my look to RTP Security is that RTP is more dedicated to real time sessions like telephony or video conferences.
RTSP seam to be made at a more higher level to provide media on demand. It can use RTP but it's not necessary : RTSP can be it's own transport protocol. The main differences between each one is that RTSP provide an HTTP like protocol with all the concept attached to it (control, and transport if my memory is good, protocol can be secure like in HTTPs at least they can be authenticated.

AVT users correct me if I'm wrong or incomplete !

Thanks.

-----Message d'origine-----
De : Soyoung Lee [mailto:***@lge.com]
Envoye : mardi 29 octobre 2002 06:18
A : avt
Objet : [AVT] Question on RTP and RTSP


Dear experts,

I wonder what is the difference between RTP and RTSP.
In my understanding, RTP is used for real-time voice and streaming service.
Then, what is the RTSP?

Thanks in advance.

===========================
Soyoung Lee
LG Electronics Inc. Korea

e-mail: <mailto:***@lge.com> ***@lge.com
phone: [phone]
fax: [phone]
===========================

[Marshall Eubanks]

Post by BUYCK Jacky FTRD/DMI/CAE
Hi.
From what I've seen during my look to RTP Security is that RTP is
more dedicated to real time sessions like telephony or video conferences.
RTSP seam to be made at a more higher level to provide media on
demand. It can use RTP but it's not necessary : RTSP can be it's own
transport protocol. The main differences between each one is that RTSP

RTSP does control / signalling, and is _not_ a transport protocol. The streams
must be transported using another protocol, such as RTP or HTTP. RTSP is
commonly used to help negotiate an audiovideo setup to decide what transport
protocol and bit rate etc. is to be used.

Regards
Marshall Eubanks

P.S. Please avoid html e-mail to IETF lists.

Post by BUYCK Jacky FTRD/DMI/CAE
provide an HTTP like protocol with all the concept attached to it
(control, and transport if my memory is good, protocol can be secure
like in HTTPs at least they can be authenticated.
AVT users correct me if I'm wrong or incomplete !
Thanks.
-----Message d'origine-----
Envoye' : mardi 29 octobre 2002 06:18
A` : avt
Objet : [AVT] Question on RTP and RTSP
Dear experts,
I wonder what is the difference between RTP and RTSP.
In my understanding, RTP is used for real-time voice and streaming service.
Then, what is the RTSP?
Thanks in advance.
===========================
Soyoung Lee
LG Electronics Inc. Korea
phone: [phone]
fax: [phone]
===========================

--
T.M. Eubanks
Multicast Technologies, Inc
10301 Democracy Lane, Suite 410
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Phone : [phone] Fax : [phone]
e-mail : ***@multicasttech.com
http://www.multicasttech.com

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