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RTP PARAMETERS
RTP Payload Types - Closed
RTP RTCP Control Packet Types
RTP SDES Item Types
-------------------------------------------------------------------------
RTP Payload types (PT) for standard audio and video encodings - Closed
The RFC "RTP Profile for Audio and Video Conferences with Minimal
Control" [RFC1890] specifies an initial set "payload types". This
list mantains and extends that list.
PT encoding audio/video clock rate channels
name (A/V) (Hz) (audio)
_______________________________________________________________
0 PCMU A 8000 1 [RFC1890]
1 1016 A 8000 1 [RFC1890]
2 G726-32 A 8000 1 [RFC1890]
3 GSM A 8000 1 [RFC1890]
4 G723 A 8000 1 [Kumar]
5 DVI4 A 8000 1 [RFC1890]
6 DVI4 A 16000 1 [RFC1890]
7 LPC A 8000 1 [RFC1890]
8 PCMA A 8000 1 [RFC1890]
9 G722 A 8000 1 [RFC1890]
10 L16 A 44100 2 [RFC1890]
11 L16 A 44100 1 [RFC1890]
12 QCELP A 8000 1
13 reserved A
14 MPA A 90000 [RFC1890,2250]
15 G728 A 8000 1 [RFC1890]
16 DVI4 A 11025 1 [DiPol]
17 DVI4 A 22050 1 [DiPol]
18 G729 A 8000 1
19 reserved A
20 unassigned A
21 unassigned A
22 unassigned A
23 unassigned A
dyn GSM-HR A 8000 1
dyn GSM-EFR A 8000 1
dyn L8 A var. var.
dyn RED A
dyn VDVI A var. 1
24 unassigned V
25 CelB V 90000 [RFC2029]
26 JPEG V 90000 [RFC2435]
27 unassigned V
28 nv V 90000 [RFC1890]
29 unassigned V
30 unassigned V
31 H261 V 90000 [RFC2032]
32 MPV V 90000 [RFC2250]
33 MP2T AV 90000 [RFC2250]
34 H263 V 90000 [Zhu]
35--71 unassigned ?
72--76 reserved for RTCP conflict avoidance [RFC1889]
77--95 unassigned ?
96--127 dynamic ? [RFC1890]
dyn BT656 V 90000
dyn H263-1998 V 90000
dyn MP1S V 90000
dyn MP2P V 90000
dyn BMPEG V 90000
REFERENCES
[RFC1889] Schulzrinne, H., S. Casner, R. Frederick, V. Jacobson, "RTP:
A Transport Protocol for Real-Time Applications", RFC 1889,
GMD Fokus, Precept Software, Xerox Palo Alto Research
Center, Lawrence Berkeley National Laboratory, October 1996.
[RFC1890] Schulzrinne, H., "RTP Profile for Audio and Video
Conferences with Minimal Control", RFC 1890, GMD Fokus,
January 1996.
[RFC2029] Speer, M., and D. Hoffman, "RTP Payload Format of Sun's Cell
B Video Encoding", RFC 2029, Sun Microsystems, October 1996.
[RFC2032] Turletti, T., and C. Huitema, " RTP Payload Format for H.261
Video Streams", RFC 2032, MIT, Bellcore, October 1996.
[RFC2435] Berc, L., W. Fenner, R. Frederick, S. McCanne, and P.
Stewart, "RTP Payload Format for JPEG-Compressed Video",
RFC 2435, DEC, PARC, LBL, October 1998.
[RFC2250] Hoffman, D., Fernando, G., Goyal, V., and M. Civanlar, "RTP
Payload Format for MPEG1/MPEG2 Video", RFC 2250, Sun
Microsystems, Precept Spftware, AT&T Labs - Research,
January 1998.
PEOPLE
[DiPol] Joseph Di Pol, <Joe.Dipol@eng.sun.com>, May 1996.
[Hoffman] Don Hoffman, <hoffman@eng.sun.com>, January 1996.
[Kumar] Vineet Kumar, <Vineet_Kumar@ccm.jf.intel.com>, January 1997.
[McCanne] Steve McCanne, <mccanne@ee.lbl.gov>, January 1996.
[Schulzrinne] Henning Schulzrinne, <schulzrinne@fokus.gmd.de>, May 1996.
[Speer] Michael Speer, <michael.speer@eng.sun.com>, January 1996.
[Turletti] Thierry Turletti, < >, January 1996.
[Zhu] Chunrong Zhu, <Chunrong_Zhu@ccm.jf.intel.com>, June 1996.
-----------------------------------------------------------------------
RTP RTCP Control Packet types (PT)
The RFC "RTP: A Transport Protocol for Real-Time Applications"
[RFC1889] specifies an initial set of "control packet types" for RTCP.
This list mantains and extends that list.
abbrev. name value
_______________________________________
SR sender report 200 [RFC1890]
RR receiver report 201 [RFC1890]
SDES source description 202 [RFC1890]
BYE goodbye 203 [RFC1890]
APP application-defined 204 [RFC1890]
These type values were chosen in the range 200-204 for improved
header validity checking of RTCP packets compared to RTP packets or
other unrelated packets. New values may be assigned following
these and then elswhere in the range [1,254]. The values 0 and 255
are avoided for improved validity checking relative to random
packets since all-zeros and all-ones are common values.
Other constants are assigned by IANA. Experimenters are encouraged
to register the numbers they need for experiments, and then
unregister those which prove to be unneeded.
-----------------------------------------------------------------------
RTP SDES item types
The RFC "RTP: A Transport Protocol for Real-Time Applications"
[RFC1889] specifies an initial set of "item types" for the RTCP SDES
control packet. This list mantains and extends that list.
abbrev. name value
__________________________________________________
END end of SDES list 0 [RFC1890]
CNAME canonical name 1 [RFC1890]
NAME user name 2 [RFC1890]
EMAIL user's electronic mail address 3 [RFC1890]
PHONE user's phone number 4 [RFC1890]
LOC geographic user location 5 [RFC1890]
TOOL name of application or tool 6 [RFC1890]
NOTE notice about the source 7 [RFC1890]
PRIV private extensions 8 [RFC1890]
H323-CADDR H.323 callable address 9 [Kumar]
Other constants are assigned by IANA, in the range [0,255].
Experimenters are encouraged to register the numbers they need for
experiments, and then unregister those which prove to be unneeded.
REFERENCES
----------
[RFC1889] Schulzrinne, H., S. Casner, R. Frederick, V. Jacobson, "RTP:
A Transport Protocol for Real-Time Applications", RFC 1889,
GMD Fokus, Precept Software, Xerox Palo Alto Research
Center, Lawrence Berkeley National Laboratory, October 1996.
[RFC1890] Schulzrinne, H., "RTP Profile for Audio and Video
Conferences with Minimal Control", RFC 1890, GMD Fokus,
January 1996.
PEOPLE
------
[Kumar] Vineet Kumar, <Vineet_Kumar@ccm.jf.intel.com>, January 1997.
(last updated May 04 2001)
[]
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