One parsed SDP media description (m= line plus its attributes).
m=
Media-level attributes: a=name:value (value '' for a flag).
a=name:value
''
The format list after the protocol.
Transport port.
Transport protocol (TCP/MSRP, RTP/AVP, ...).
TCP/MSRP
RTP/AVP
Media type (message, audio, ...).
message
audio
One parsed SDP media description (
m=line plus its attributes).