SdpManager

SDP Management for enhanced performance

Structure

1) SDP

1-1) SessionDescriptionFactory

1-1-1) VersionField (Mandatory)

• versionType : char, 'v'
• version : int, 0

1-1-2) OriginField (Mandatory)

• originType : char, 'o'
• originUserName : String
• originAddress : String
• originAddressType : String
• originNetworkType : String
• sessionId : long
• sessionVersion : long

1-1-3) SessionField (Mandatory)

• sessionType : char, 's'
• sessionName : String

1-1-4) ConnectionField (Optional)

• connectionType : char, 'c'
• connectionAddress : String
• connectionAddressType : String
• connectionNetworkType : String

1-2) TimeDescriptionFactory

1-2-1) TimeField (Mandatory)

• timeType : char, 't'
• startTime : String
• endTime : String

1-3) MediaDesciptionFactory

1-3-1) MediaFactory

1-3-1-1) ConnectionField (Optional)

• connectionType : char, 'c'
• connectionAddress : String
• connectionAddressType : String
• connectionNetworkType : String

1-3-1-2) MediaField (Mandatory)

• type : char, 'm'
• mediaType : String (audio, video, application, text, etc.)
• mediaPort : int
• protocol : String
• mediaFormats : List
• portCount : int

1-3-1-3) Attribute (Mandatory)

• RtpAttribute
  payloadId : String
  customAttributeFactory : AttributeFactory
  rtpMapAttributeFactory : RtpMapAttributeFactory
  fmtpAttributeFactoryList : List

• AttributeFactory
  type : char, 'a'
  name : String
  payloadId : String
  value : String

• RtpMapAttributeFactory
  codecName : String
  samplingRate : String
  isOctetAlign : boolean

• FmtpAttributeFactory
  modeSet : int
  isOaMode : boolean

Example

v=0
o=- 0 0 IN IP4 127.0.0.1
s=-
c=IN IP4 127.0.0.1
t=0 0
m=audio 10000 RTP/AVP 97 98 101 102
a=rtpmap:97 AMR/8000
a=fmtp:97 mode-set=5; octet-align=1
a=rtpmap:98 AMR-WB/16000
a=fmtp:98 mode-set=6; octet-align=1
a=rtpmap:101 telephone-event/8000
a=fmtp:101 0-16
a=rtpmap:102 telephone-event/16000
a=fmtp:102 0-16