This section describes the RTCP related functions that RRtpSession provdes. In specific, how to send various types of RTCP packets, how to set the stream parameters and close the session.

To send an SR, an RR, or an SDES packet automatically call RRtpSession::SetRTCPAutoSend() and set to ETrue.

RTPSession:SetRTCPAutoSend(TBool ETrue); //set to ETrue 

Set the RTCP auto send time interval in microseconds by calling SetRtcpIntervel.

RTPSession:SetRtcpInterval(1000);// set auto send time interval to 1000 microseconds

If auto-sending is set to EFalse, you need to explicitly call SendRtcpPacketL() to send a packet.

//sends the CNAME of SDES item along with the packet 
RTPSession:SendRtcpPacketL(TRtpSendPacketType ERtcpPacketCNAME); 

Specify the SDES items as defined in TRtpSendPacketType that can be sent along with the packet such as cname, name, email, phone etc .

Call SendAppL to send an APP packet.

SendAPPL(const TDesC8& aName, const TDesC8& aAppData, TUint8 aSubType)

Call SetSDESL to set the SDES details such as CNAME, NAME, PHONE, EMAIL etc. for an SDES RTP packet. You need to set these details before the packet is sent. The CNAME should be unique for an RTP session otherwise the function leaves.

GetSDES() allows you to fetch the data associated with the specified SDES item.

You can set the data associated with the PRIV (Private Extensions) SDES item by calling SetPRIVL.

Note: The PRIV (Private Extensions) SDES item is not supported.

SetRtpStreamParameters sets the following stream parameters:

• maximum number of sequential packets that must be received for a good stream.

• maximum number of dropped packets to be considered a dropout.

• maximum number of packets by which a packet can be delayed to be considered as dropped.

SetRtpStreamParameters(1,100,3000);// set MinSequential, MaxMisorder & MaxDropout 

Close() closes the RTP session. All the send and receive streams are disconnected after this call.

session.Close(); 
delete session;

Types of RTCP packets

Creating and Managing an RTP session