sdp picess

v=0
o=- 3858744756 316989898 IN IP4 172.xx.xxx.xx
s=XenonEncoderLivePro
c=IN IP4 172.16.154.88
t=0 0
m=video 4060 RTP/AVP 105
b=AS:128
a=Width:integer;320
a=Height:integer;240
a=cliprect:0,0,240,320
a=rtpmap:105 H264/90000
a=fmtp:105 profile-level-id=42E00C; sprop-parameter-sets=Z0LgDJZUCg/I,aM4BrFCA; packetization-mode=1
a=mpeg4-esid:11
m=audio 4062 RTP/AVP 110
b=AS:8
a=rtpmap:110 MP4A-LATM/16000/1
a=mpeg4-esid:12
a=fmtp:110 profile-level-id=15;object=2;cpresent=0;config=40002B103FC0;SBR-enabled=1





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http://tools.ietf.org/html/rfc4566#page-10

5.1.  Protocol Version ("v=")

      v=0

   The "v=" field gives the version of the Session Description Protocol.
   This memo defines version 0.  There is no minor version number.

http://tools.ietf.org/html/rfc3556
2.  SDP Extensions

   The Session Description Protocol includes an optional bandwidth
   attribute with the following syntax:

      b=<modifier>:<bandwidth-value>

   where <modifier> is a single alphanumeric word giving the meaning of
   the bandwidth figure, and where the default units for <bandwidth-
   value> are kilobits per second.  This attribute specifies the
   proposed bandwidth to be used by the session or media.

   A typical use is with the modifier "AS" (for Application Specific
   Maximum) which may be used to specify the total bandwidth for a
   single media stream from one site (source).

   This memo defines two additional bandwidth modifiers:

      b=RS:<bandwidth-value>

      b=RR:<bandwidth-value>

   where "RS" indicates the RTCP bandwidth allocated to active data
   senders (as defined by the RTP spec) and "RR" indicates the RTCP
   bandwidth allocated to other participants in the RTP session (i.e.,
   receivers).  The exact behavior induced by specifying these bandwidth
   modifiers depends upon the algorithm used to calculate the RTCP
   reporting interval.  Different algorithms may be specified by
   different RTP profiles.