Here are the classes, structs, unions and interfaces with brief descriptions:

CRTCPAPPPacket	Describes an RTCP APP packet
CRTCPBYEPacket	Describes an RTCP BYE packet
CRTCPCompoundPacket	Represents an RTCP compound packet
CRTCPCompoundPacketBuilder	This class can be used to construct an RTCP compound packet
CRTCPPacket	Base class for specific types of RTCP packets
CRTCPPacketBuilder	This class can be used to build RTCP compound packets, on a higher level than the RTCPCompoundPacketBuilder
CRTCPRRPacket	Describes an RTCP receiver report packet
CRTCPScheduler	This class determines when RTCP compound packets should be sent
CRTCPSchedulerParams	Describes parameters used by the RTCPScheduler class
CRTCPSDESInfo	The class RTCPSDESInfo is a container for RTCP SDES information
CRTCPSDESPacket	Describes an RTCP source description packet
CRTCPSRPacket	Describes an RTCP sender report packet
CRTCPUnknownPacket	Describes an RTCP packet of unknown type
CRTPAddress	This class is an abstract class which is used to specify destinations, multicast groups etc
CRTPCollisionList	This class represents a list of addresses from which SSRC collisions were detected
CRTPIPv4Address	Represents an IPv4 IP address and port
CRTPIPv6Address	Represents an IPv6 IP address and port
CRTPLibraryVersion	Used to provide information about the version of the library
CRTPMemoryManager	A memory manager
CRTPNTPTime	This is a simple wrapper for the most significant word (MSW) and least significant word (LSW) of an NTP timestamp
CRTPPacket	Represents an RTP Packet
CRTPPacketBuilder	This class can be used to build RTP packets and is a bit more high-level than the RTPPacket class: it generates an SSRC identifier, keeps track of timestamp and sequence number etc
CRTPRandom	Can be used to generate random numbers
CRTPRawPacket	This class is used by the transmission component to store the incoming RTP and RTCP data in
CRTPSession	High level class for using RTP
CRTPSessionParams	Describes the parameters for to be used by an RTPSession instance
CRTPSourceData	Describes an entry in the RTPSources source table
CRTPSources	Represents a table in which information about the participating sources is kept
CRTPTime	This class is used to specify wallclock time, delay intervals etc
CRTPTransmissionInfo	Base class for additional information about the transmitter
CRTPTransmissionParams	Base class for transmission parameters
CRTPTransmitter	Abstract class from which actual transmission components should be derived
CRTPUDPv4TransmissionInfo	Additional information about the UDP over IPv4 transmitter
CRTPUDPv4TransmissionParams	Parameters for the UDP over IPv4 transmitter
CRTPUDPv4Transmitter	An UDP over IPv4 transmission component
CRTPUDPv6TransmissionInfo	Additional information about the UDP over IPv6 transmitter
CRTPUDPv6TransmissionParams	Parameters for the UDP over IPv6 transmitter
CRTPUDPv6Transmitter	An UDP over IPv6 transmitter