Hi,
I want to ask about RTP payload size. I’m implementing validation on
RTP/RTCP packets.
I want to validate the size of the RTP packet, so I try to figure the
max size of an RTP packet according to the codec type.
Where can I find a helpful reference.
The codecs I’m looking for are the specified:
PT
Name
Type
Clock rate (Hz)
Audio channels
Payload Max Size
References
0
PCMU(G.711)
Audio
8000
1
RFC 3551
1
1016
Audio
8000
1
RFC 3551
2
G721
Audio
8000
1
RFC 3551
3
GSM
Audio
8000
1
RFC 3551
4
G723
Audio
8000
1
5
DVI4
Audio
8000
1
RFC 3551
6
DVI4
Audio
16000
1
RFC 3551
7
LPC
Audio
8000
1
RFC 3551
8
PCMA
Audio
8000
1
RFC 3551
9
G722
Audio
8000
1
RFC 3551
10
L16
Audio
44100
2
RFC 3551
11
L16
Audio
44100
1
RFC 3551
12
QCELP
Audio
8000
1
13
CN
Audio
8000
1
RFC 3389
14
MPA
Audio
90000
RFC 2250, RFC 3551
15
G728
Audio
8000
1
RFC 3551
16
DVI4
Audio
11025
1
17
DVI4
Audio
22050
1
18
G729
Audio
8000
1
19
reserved
Audio
20
-
24
25
CellB
Video
90000
RFC 2029
26
JPEG
Video
90000
RFC 2435
27
28
nv
Video
90000
RFC 3551
29
30
31
H261
Video
90000
RFC 2032
32
MPV
Video
90000
RFC 2250
33
MP2T
Audio/Video
90000
RFC 2250
34
H263
Video
90000
35
-
71
72
-
76
reserved
RFC 3550
77
-
95
96
-
127
dynamic
RFC 3551
100
Speex
dynamic
GSM-HR
Audio
8000
1
dynamic
GSM-EFR
Audio
8000
1
dynamic
L8
Audio
variable
variable
dynamic
RED
Audio
dynamic
VDVI
Audio
variable
1
dynamic
BT656
Video
90000
dynamic
H263-1998
Video
90000
dynamic
MP1S
Video
90000
dynamic
MP2P
Video
90000
dynamic
BMPEG
Video
90000
Thanks in advance
Zeev.K 4804
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