RTPDataQueue Class Reference

A packet queue handler for building different kinds of RTP protocol systems. More...

#include <ioqueue.h>

Inheritance diagram for RTPDataQueue:

Collaboration diagram for RTPDataQueue:

Public Types
enum	Tos { tosBestEffort, tosEnhanced }
	rtp.h cc++/rtp.h More...

Public Member Functions
void	setTypeOfService (Tos tos)
	Specify the kind of service the application expects to use. More...
void	enableStack ()
	Enable packet queue processing in the stack. More...
void	disableStack ()
	Disable packet queue processing in the stack. More...
bool	isActive () const
	Get active connection state flag. More...
uint32	getCurrentTimestamp () const
	Get the timestamp that should be given for a packet whose payload sampling instant corresponds to the current system time. More...
void	setSessionBandwidth (uint32 bw)
	Specify the bandwidth of the current session. More...
uint32	getDefaultSessionBandwidth () const
uint32	getSessionBandwidth () const
void	setTimeclock ()
	Set the packet timeclock for synchronizing timestamps. More...
timeout_t	getTimeclock () const
	Get the packet timeclock for synchronizing timestamps. More...
SyncSourcesIterator	begin ()
SyncSourcesIterator	end ()
const AppDataUnit *	getData (uint32 stamp, const SyncSource *src=NULL)
	Retreive data from a specific timestamped packet if such a packet is currently available in the receive buffer. More...
bool	isWaiting (const SyncSource *src=NULL) const
	Determine if packets are waiting in the reception queue. More...
uint32	getFirstTimestamp (const SyncSource *src=NULL) const
	Get timestamp of first packet waiting in the queue. More...
void	setMinValidPacketSequence (uint8 packets)
	When receiving packets from a new source, it may be convenient to reject a first few packets before we are really sure the source is valid. More...
uint8	getDefaultMinValidPacketSequence () const
uint8	getMinValidPacketSequence () const
	Get the minimun number of consecutive packets that must be received from a source before accepting its data packets. More...
void	setMaxPacketMisorder (uint16 packets)
uint16	getDefaultMaxPacketMisorder () const
uint16	getMaxPacketMisorder () const
void	setMaxPacketDropout (uint16 packets)
	It also prevents packets sent after a restart of the source being immediately accepted. More...
uint16	getDefaultMaxPacketDropout () const
uint16	getMaxPacketDropout () const
void	setInQueueCryptoContext (CryptoContext *cc)
	Set input queue CryptoContext. More...
void	removeInQueueCryptoContext (CryptoContext *cc)
	Remove input queue CryptoContext. More...
CryptoContext *	getInQueueCryptoContext (uint32 ssrc)
	Get an input queue CryptoContext identified by SSRC. More...
size_t	getDefaultMaxRecvPacketSize () const
size_t	getMaxRecvPacketSize () const
void	setMaxRecvPacketSize (size_t maxsize)
bool	setPayloadFormat (const PayloadFormat &pf)
	Set the payload format in use, for timing and payload type identification purposes. More...
uint32	getLocalSSRC () const
uint32	getCurrentRTPClockRate () const
	Get the clock rate in RTP clock units (for instance, 8000 units per second for PCMU, or 90000 units per second for MP2T). More...
PayloadType	getCurrentPayloadType () const
timeval	getInitialTime () const
bool	addDestination (const InetHostAddress &ia, tpport_t dataPort=DefaultRTPDataPort, tpport_t controlPort=0)
bool	addDestination (const InetMcastAddress &ia, tpport_t dataPort=DefaultRTPDataPort, tpport_t controlPort=0)
bool	forgetDestination (const InetHostAddress &ia, tpport_t dataPort=DefaultRTPDataPort, tpport_t controlPort=0)
bool	forgetDestination (const InetMcastAddress &ia, tpport_t dataPort=DefaultRTPDataPort, tpport_t controlPort=0)
void	addContributor (uint32 csrc)
	Add csrc as the CSRC identifier of a new contributor. More...
bool	removeContributor (uint32 csrc)
	Remove CSRC from the list of contributors. More...
bool	isSending () const
	Determine if outgoing packets are waiting to send. More...
void	putData (uint32 stamp, const unsigned char *data=NULL, size_t len=0)
	This is used to create a data packet in the send queue. More...
void	sendImmediate (uint32 stamp, const unsigned char *data=NULL, size_t len=0)
	This is used to create a data packet and send it immediately. More...
void	setPadding (uint8 paddinglen)
	Set padding. More...
void	setMark (bool mark)
	Set marker bit for the packet in which the next data provided will be send. More...
bool	getMark () const
	Get wheter the mark bit will be set in the next packet. More...
size_t	setPartial (uint32 timestamp, unsigned char *data, size_t offset, size_t max)
	Set partial data for an already queued packet. More...
microtimeout_t	getDefaultSchedulingTimeout () const
void	setSchedulingTimeout (microtimeout_t to)
	Set the default scheduling timeout to use when no data packets are waiting to be sent. More...
microtimeout_t	getDefaultExpireTimeout () const
void	setExpireTimeout (microtimeout_t to)
	Set the "expired" timer for expiring packets pending in the send queue which have gone unsent and are already "too late" to be sent now. More...
microtimeout_t	getExpireTimeout () const
uint32	getSendPacketCount () const
	Get the total number of packets sent so far. More...
uint32	getSendOctetCount () const
	Get the total number of octets (payload only) sent so far. More...
uint16	getSequenceNumber () const
	Get the sequence number of the next outgoing packet. More...
void	setOutQueueCryptoContext (CryptoContext *cc)
	Set ouput queue CryptoContext. More...
void	removeOutQueueCryptoContext (CryptoContext *cc)
	Remove output queue CryptoContext. More...
CryptoContext *	getOutQueueCryptoContext (uint32 ssrc)
	Get an output queue CryptoContext identified by SSRC. More...
size_t	getDefaultMaxSendSegmentSize ()
void	setMaxSendSegmentSize (size_t size)
	Set maximum payload segment size before fragmenting sends. More...
size_t	getMaxSendSegmentSize ()

Static Public Member Functions
static size_t	getDefaultMembersSize ()

Protected Member Functions
	RTPDataQueue (uint32 size=defaultMembersHashSize)
	Constructor. More...
	RTPDataQueue (uint32 *ssrc, uint32 size=defaultMembersHashSize)
	Using this constructor you can start a session with the given ssrc, instead of the usual randomly generated one. More...
virtual	~RTPDataQueue ()
	The queue destructor flushes the queue and stops all services. More...
virtual void	timerTick ()
	A plugin point for timer tick driven events. More...
void	renewLocalSSRC ()
void	endQueue ()
	This method ends the queue. More...
virtual bool	isPendingData (microtimeout_t timeout)=0
	This function is used to check for and schedule against arriving packets based on the derived connection type. More...
bool	checkSSRCInIncomingRTPPkt (SyncSourceLink &sourceLink, bool is_new, InetAddress &na, tpport_t tp)
	Apply collision and loop detection and correction algorithm when receiving RTP data packets. More...
void	setSourceExpirationPeriod (uint8 intervals)
	Set the number of RTCP intervals that the stack will wait to change the state of a source from stateActive to stateInactive, or to delete the source after being in stateInactive. More...
virtual size_t	takeInDataPacket ()
	This function is used by the service thread to process the next incoming packet and place it in the receive list. More...
IncomingDataQueue::IncomingRTPPktLink *	getWaiting (uint32 timestamp, const SyncSource *src=NULL)
	This is used to fetch a packet in the receive queue and to expire packets older than the current timestamp. More...
bool	recordReception (SyncSourceLink &srcLink, const IncomingRTPPkt &pkt, const timeval recvtime)
	Log reception of a new RTP packet from this source. More...
void	recordExtraction (const IncomingRTPPkt &pkt)
	Log extraction of a packet from this source from the scheduled reception queue. More...
void	purgeIncomingQueue ()
virtual void	onNewSyncSource (const SyncSource &)
	Virtual called when a new synchronization source has joined the session. More...
virtual bool	onRTPPacketRecv (IncomingRTPPkt &)
	A virtual function to support parsing of arriving packets to determine if they should be kept in the queue and to dispatch events. More...
virtual void	onExpireRecv (IncomingRTPPkt &)
	A hook to filter packets in the receive queue that are being expired. More...
virtual bool	onSRTPPacketError (IncomingRTPPkt &pkt, int32 errorCode)
	A hook that gets called if the decoding of an incoming SRTP was erroneous. More...
virtual bool	end2EndDelayed (IncomingRTPPktLink &)
bool	insertRecvPacket (IncomingRTPPktLink *packetLink)
	Insert a just received packet in the queue (both general and source specific queues). More...
virtual size_t	recvData (unsigned char *buffer, size_t length, InetHostAddress &host, tpport_t &port)=0
	This function performs the physical I/O for reading a packet from the source. More...
virtual size_t	getNextDataPacketSize () const =0
void	setLocalSSRC (uint32 ssrc)
uint32	getLocalSSRCNetwork () const
virtual size_t	dispatchBYE (const std::string &)
	A plugin point for posting of BYE messages. More...
size_t	getDefaultMembersHashSize ()
SyncSourceLink *	getLink (const SyncSource &source) const
bool	isMine (const SyncSource &source) const
	Get whether a synchronization source is recorded in this membership controller. More...
bool	isRegistered (uint32 ssrc)
	Returns whether there is already a synchronizacion source with "ssrc" SSRC identifier. More...
SyncSourceLink *	getSourceBySSRC (uint32 ssrc, bool &created)
	Get the description of a source by its ssrc identifier. More...
bool	BYESource (uint32 ssrc)
	Mark the source identified by ssrc as having sent a BYE packet. More...
bool	removeSource (uint32 ssrc)
	Remove the description of the source identified by ssrc More...
SyncSourceLink *	getFirst ()
SyncSourceLink *	getLast ()
uint32	getMembersCount ()
void	setMembersCount (uint32 n)
uint32	getSendersCount ()
void	setLink (SyncSource &source, void *link)
void	setParticipant (SyncSource &source, Participant &p)
void	setState (SyncSource &source, SyncSource::State ns)
void	setSender (SyncSource &source, bool active)
void	setDataTransportPort (SyncSource &source, tpport_t p)
void	setControlTransportPort (SyncSource &source, tpport_t p)
void	setNetworkAddress (SyncSource &source, InetAddress addr)
void	setSDESItem (Participant *part, SDESItemType item, const std::string &val)
void	setPRIVPrefix (Participant *part, const std::string val)
void	addParticipant (RTPApplication &app, Participant &part)
void	removeParticipant (RTPApplication &app, RTPApplication::ParticipantLink *pl)
ConflictingTransportAddress *	searchDataConflict (InetAddress na, tpport_t dtp)
ConflictingTransportAddress *	searchControlConflict (InetAddress na, tpport_t ctp)
void	updateConflict (ConflictingTransportAddress &ca)
void	addConflict (const InetAddress &na, tpport_t dtp, tpport_t ctp)
void	dispatchImmediate (OutgoingRTPPkt *packet)
	This is used to write the RTP data packet to one or more destinations. More...
microtimeout_t	getSchedulingTimeout ()
	This computes the timeout period for scheduling transmission of the next packet at the "head" of the send buffer. More...
size_t	dispatchDataPacket ()
	This function is used by the service thread to process the next outgoing packet pending in the sending queue. More...
void	setNextSeqNum (uint32 seqNum)
	For thoses cases in which the application requires a method to set the sequence number for the outgoing stream (such as for implementing the RTSP PLAY command). More...
uint32	getCurrentSeqNum (void)
void	setInitialTimestamp (uint32 ts)
uint32	getInitialTimestamp ()
void	purgeOutgoingQueue ()
virtual void	setControlPeer (const InetAddress &host, tpport_t port)
bool	isSingleDestination () const
	Get whether there is only a destination in the list. More...
TransportAddress *	getFirstDestination () const
void	lockDestinationList () const
void	unlockDestinationList () const
void	writeLockDestinationList () const
bool	addDestinationToList (const InetAddress &ia, tpport_t data, tpport_t control)
	Locks the object before modifying it. More...
bool	removeDestinationFromList (const InetAddress &ia, tpport_t dataPort, tpport_t controlPort)
	Locks the object before modifying it. More...

Protected Attributes
ThreadLock	recvLock
IncomingRTPPktLink *	recvFirst
IncomingRTPPktLink *	recvLast
uint8	minValidPacketSequence
uint16	maxPacketMisorder
uint16	maxPacketDropout
uint8	sourceExpirationPeriod
Mutex	cryptoMutex
std::list< CryptoContext * >	cryptoContexts
ConflictingTransportAddress *	firstConflict
ConflictingTransportAddress *	lastConflict
Mutex	cryptoMutex
std::list< CryptoContext * >	cryptoContexts
std::list< TransportAddress * >	destList

Static Protected Attributes
static const uint8	defaultMinValidPacketSequence
static const uint16	defaultMaxPacketMisorder
static const uint16	defaultMaxPacketDropout
static const size_t	defaultMembersSize
static const size_t	defaultMembersHashSize
static const uint32	SEQNUMMOD

Private Member Functions
	RTPDataQueue (const RTPDataQueue &o)
RTPDataQueue &	operator= (const RTPDataQueue &o)
void	initQueue ()
	Global queue initialization. More...

Private Attributes
volatile bool	dataServiceActive
Tos	typeOfService
TimerPort	timeclock
uint32	sessionBw

Static Private Attributes
static const uint32	defaultSessionBw

Detailed Description

A packet queue handler for building different kinds of RTP protocol systems.

The queue manages both incoming and outgoing RTP packets, as well as synchronization and transmission/reception timers. By making the queue handler a seperate base class it becomes possible to define RTP classes for RTP profiles and sessions of different types.

Outgoing packets are sent via the OutgoingDataQueue::putData method.

Incoming packets can be retrieved via IncomingDataQueue::getData method.

Author

David Sugar dyfet.nosp@m.@ost.nosp@m.el.co.nosp@m.m RTP data queue handler.

Definition at line 77 of file ioqueue.h.

Member Enumeration Documentation

enum RTPDataQueue::Tos

rtp.h cc++/rtp.h

Type of network service the application uses.

If the application uses enhanced network service, for instance Integrated Services or Differentiated Services, it has not to ensure fair competition with TCP, provided that the requested service is actually being delivered. Whenever the application uses best-effort service or the requested enhanced service is not actually being delivered, it has to ensure fair competition with TCP. By default, best-effot is assumed.

Note

Although not required, RTP packets are always sent on top of UDP segments. No other underlying transport protocol is supported at present.

Todo:

implement fair competition with tcp

Enumerator
tosBestEffort	Best-effort network service.
tosEnhanced	Enhanced network service.

Definition at line 101 of file ioqueue.h.

Constructor & Destructor Documentation

RTPDataQueue::RTPDataQueue ( uint32  size = defaultMembersHashSize )

protected

Constructor.

This will generate a random application SSRC identifier.

Parameters

size	an estimation of the number of participants in the session

RTPDataQueue::RTPDataQueue ( uint32 *  ssrc, uint32  size = defaultMembersHashSize  )

protected

Using this constructor you can start a session with the given ssrc, instead of the usual randomly generated one.

This is necessary when you need to initiate several sessions having the same SSRC identifier, for instance, to implement layered encoding, in which case each layer is managed through a different session but all sessions share the same SSRC identifier.

Warning

This doesn't seem to be a good solution

Parameters

ssrc	Synchronization SouRCe identifier for this session
size	an estimation of the number of participants in the session

virtual RTPDataQueue::~RTPDataQueue ( )

inlineprotectedvirtual

The queue destructor flushes the queue and stops all services.

Definition at line 274 of file ioqueue.h.

RTPDataQueue::RTPDataQueue ( const RTPDataQueue &  o )

private

Member Function Documentation

void ConflictHandler::addConflict ( const InetAddress &  na, tpport_t  dtp, tpport_t  ctp  )

inherited

void OutgoingDataQueue::addContributor ( uint32  csrc )

inherited

Add csrc as the CSRC identifier of a new contributor.

This method adds the CSRC identifier to a list of contributors that will be inserted in every packet enqueued from now on.

bool OutgoingDataQueue::addDestination ( const InetHostAddress &  ia, tpport_t  dataPort = DefaultRTPDataPort, tpport_t  controlPort = 0  )

inherited

bool OutgoingDataQueue::addDestination ( const InetMcastAddress &  ia, tpport_t  dataPort = DefaultRTPDataPort, tpport_t  controlPort = 0  )

inherited

bool DestinationListHandler::addDestinationToList ( const InetAddress &  ia, tpport_t  data, tpport_t  control  )

protectedinherited

Locks the object before modifying it.

void ApplicationHandler::addParticipant ( RTPApplication &  app, Participant &  part  )

inlineinherited

Definition at line 212 of file iqueue.h.

SyncSourcesIterator IncomingDataQueue::begin ( )

inlineinherited

Definition at line 938 of file iqueue.h.

bool MembershipBookkeeping::BYESource ( uint32  ssrc )

protectedinherited

Mark the source identified by ssrc as having sent a BYE packet.

It is not deleted until a timeout expires, so that in case some packets from this source arrive a bit later the source is not inserted again in the table of known sources.

Returns

true if the source had been previously identified. false if it was not in the table of known sources.

bool IncomingDataQueue::checkSSRCInIncomingRTPPkt ( SyncSourceLink &  sourceLink, bool  is_new, InetAddress &  na, tpport_t  tp  )

protectedinherited

Apply collision and loop detection and correction algorithm when receiving RTP data packets.

Follows section 8.2 in draft-ietf-avt-rtp-new.

Parameters

sourceLink	link to the source object.
is_new	whether the source has been just recorded.
na	data packet network address.
tp	data packet source transport port.

Returns

whether the packet must not be discarded.

void RTPDataQueue::disableStack ( )

inline

Disable packet queue processing in the stack.

Definition at line 132 of file ioqueue.h.

virtual size_t RTPQueueBase::dispatchBYE ( const std::string &  )

inlineprotectedvirtualinherited

A plugin point for posting of BYE messages.

Parameters

-	reason to leave the RTP session.

Returns

number of octets sent.

Reimplemented in QueueRTCPManager.

Definition at line 231 of file queuebase.h.

size_t OutgoingDataQueue::dispatchDataPacket ( )

protectedinherited

This function is used by the service thread to process the next outgoing packet pending in the sending queue.

Returns

number of bytes sent. 0 if silent, <0 if error.

void OutgoingDataQueue::dispatchImmediate ( OutgoingRTPPkt *  packet )

protectedinherited

This is used to write the RTP data packet to one or more destinations.

It is used by both sendImmediate and by dispatchDataPacket.

Parameters

RTP	packet to send.

void RTPDataQueue::enableStack ( )

inline

Enable packet queue processing in the stack.

This method will not any thread of execution.

Definition at line 126 of file ioqueue.h.

SyncSourcesIterator IncomingDataQueue::end ( void  )

inlineinherited

Definition at line 941 of file iqueue.h.

virtual bool IncomingDataQueue::end2EndDelayed ( IncomingRTPPktLink &  )

inlineprotectedvirtualinherited

Reimplemented in QueueRTCPManager.

Definition at line 1238 of file iqueue.h.

void RTPDataQueue::endQueue ( )

protected

This method ends the queue.

bool OutgoingDataQueue::forgetDestination ( const InetHostAddress &  ia, tpport_t  dataPort = DefaultRTPDataPort, tpport_t  controlPort = 0  )

inherited

bool OutgoingDataQueue::forgetDestination ( const InetMcastAddress &  ia, tpport_t  dataPort = DefaultRTPDataPort, tpport_t  controlPort = 0  )

inherited

PayloadType RTPQueueBase::getCurrentPayloadType ( ) const

inlineinherited

Definition at line 201 of file queuebase.h.

uint32 RTPQueueBase::getCurrentRTPClockRate ( ) const

inlineinherited

Get the clock rate in RTP clock units (for instance, 8000 units per second for PCMU, or 90000 units per second for MP2T).

This value depends on what payload format has been selected using setPayloadFormat().

Returns

clock rate in RTP clock units.

Definition at line 198 of file queuebase.h.

uint32 OutgoingDataQueue::getCurrentSeqNum ( void  )

inlineprotectedinherited

Definition at line 525 of file oqueue.h.

uint32 RTPDataQueue::getCurrentTimestamp

(

)

const

Get the timestamp that should be given for a packet whose payload sampling instant corresponds to the current system time.

The timestamp applications should provide for each packet represents the sampling instant of its payload and should not be a reading of the system clock. Nevertheless, the internal operation of the RTP stack relies on the accuracy of the provided timestamp, since several computations assume that there is a certain degree of correspondence between the timestamp and the system clock.

It is recommended that applications use this method in order to periodically adjust the RTP timestamp.

In particular, it is advisable getting the timestamp corresponding to the first sampling instant or any instant after a period of inactivity through a call to this method.

Applications should use the nominal sampling or any other value provided by the coder in order to compute the next timestamps with minimum computational requirement.

For instance, an application using an RTP profile that specifies a fixed sampling rate of 8 Khz with eight bits per sample, continuously transmitting audio blocks 80 octets long, would transmit 100 packets every second. Every packet would carry a timestamp 80 units greater than the previous one. So, the first timestamp would be obtained from this method, whereas the following ones would be computed adding 80 every time. Also the timestamp should be increased for every block whether it is put in the queue or dropped.

The aforementioned increment can be obtained from the RTPDataQueue::getTimestampIncrement() method rather than computing it by hand in the application.

Note

Frame based applications must follow a specific timestamping method, probably specified in a profile.

You should take into account that by default ccRTP assumes that the application begins sampling at the queue creation time. Moreover, the first sampling instant is assigned a "user visible" timestamp of 0, although the RTP stack will then add internally a ramdom offset unknown to the application. That is to say, the application may count samples from 0 in order to get the timestamp for the next packet, provided that the first sampling instant is the same as the queue creation time. Nevertheless, this simpler way of starting will not be as accurate as it would be if the application got at least the first timestamp through getCurrentTimestamp. We provide this option since ccRTP interface is evolving, but we admit that it is ugly, we could remove this option or even replace uint32 timestamps with a restrictively regulated object; suggestions are gladly welcomed

const AppDataUnit* IncomingDataQueue::getData ( uint32  stamp, const SyncSource *  src = NULL  )

inherited

Retreive data from a specific timestamped packet if such a packet is currently available in the receive buffer.

Parameters

stamp	Data unit timestamp.
src	Optional synchronization source selector.

Returns

data retrieved from the reception buffer.

Return values

null	pointer if no packet with such timestamp is available.

microtimeout_t OutgoingDataQueue::getDefaultExpireTimeout ( ) const

inlineinherited

Definition at line 371 of file oqueue.h.

uint16 IncomingDataQueue::getDefaultMaxPacketDropout ( ) const

inlineinherited

Definition at line 1035 of file iqueue.h.

uint16 IncomingDataQueue::getDefaultMaxPacketMisorder ( ) const

inlineinherited

Definition at line 1018 of file iqueue.h.

size_t IncomingDataQueueBase::getDefaultMaxRecvPacketSize ( ) const

inlineinherited

Definition at line 301 of file queuebase.h.

size_t OutgoingDataQueueBase::getDefaultMaxSendSegmentSize ( )

inlineinherited

Definition at line 262 of file queuebase.h.

size_t MembershipBookkeeping::getDefaultMembersHashSize ( )

inlineinherited

Definition at line 309 of file iqueue.h.

static size_t IncomingDataQueue::getDefaultMembersSize ( )

inlinestaticinherited

Definition at line 1045 of file iqueue.h.

uint8 IncomingDataQueue::getDefaultMinValidPacketSequence ( ) const

inlineinherited

Definition at line 1002 of file iqueue.h.

microtimeout_t OutgoingDataQueue::getDefaultSchedulingTimeout ( ) const

inlineinherited

Definition at line 357 of file oqueue.h.

uint32 RTPDataQueue::getDefaultSessionBandwidth ( ) const

inline

Definition at line 218 of file ioqueue.h.

microtimeout_t OutgoingDataQueue::getExpireTimeout ( ) const

inlineinherited

Definition at line 385 of file oqueue.h.

SyncSourceLink* MembershipBookkeeping::getFirst ( void  )

inlineprotectedinherited

Definition at line 836 of file iqueue.h.

TransportAddress* DestinationListHandler::getFirstDestination ( ) const

inlineinherited

Definition at line 85 of file oqueue.h.

uint32 IncomingDataQueue::getFirstTimestamp ( const SyncSource *  src = NULL ) const

inherited

Get timestamp of first packet waiting in the queue.

Parameters

src	optional source selector.

Returns

timestamp of first arrival packet.

timeval RTPQueueBase::getInitialTime ( ) const

inlineinherited

Definition at line 204 of file queuebase.h.

uint32 OutgoingDataQueue::getInitialTimestamp ( )

inlineprotectedinherited

Definition at line 537 of file oqueue.h.

CryptoContext* IncomingDataQueue::getInQueueCryptoContext ( uint32  ssrc )

inherited

Get an input queue CryptoContext identified by SSRC.

Parameters

ssrc	Request CryptoContext for this incoming SSRC

Returns

Pointer to CryptoContext of the SSRC of NULL if no context available for this SSRC.

SyncSourceLink* MembershipBookkeeping::getLast ( void  )

inlineprotectedinherited

Definition at line 839 of file iqueue.h.

SyncSourceLink* MembershipBookkeeping::getLink ( const SyncSource &  source ) const

inlineprotectedinherited

Definition at line 339 of file iqueue.h.

uint32 RTPQueueBase::getLocalSSRC ( ) const

inlineinherited

Definition at line 187 of file queuebase.h.

uint32 RTPQueueBase::getLocalSSRCNetwork ( ) const

inlineprotectedinherited

Definition at line 217 of file queuebase.h.

bool OutgoingDataQueue::getMark ( ) const

inlineinherited

Get wheter the mark bit will be set in the next packet.

Definition at line 340 of file oqueue.h.

uint16 IncomingDataQueue::getMaxPacketDropout ( ) const

inlineinherited

Definition at line 1039 of file iqueue.h.

uint16 IncomingDataQueue::getMaxPacketMisorder ( ) const

inlineinherited

Definition at line 1022 of file iqueue.h.

size_t IncomingDataQueueBase::getMaxRecvPacketSize ( ) const

inlineinherited

Definition at line 305 of file queuebase.h.

size_t OutgoingDataQueueBase::getMaxSendSegmentSize ( )

inlineinherited

Definition at line 276 of file queuebase.h.

uint32 MembershipBookkeeping::getMembersCount ( )

inlineprotectedinherited

Definition at line 843 of file iqueue.h.

uint8 IncomingDataQueue::getMinValidPacketSequence ( ) const

inlineinherited

Get the minimun number of consecutive packets that must be received from a source before accepting its data packets.

Definition at line 1010 of file iqueue.h.

virtual size_t IncomingDataQueue::getNextDataPacketSize ( ) const

protectedpure virtualinherited

Implemented in RTPDuplex.

CryptoContext* OutgoingDataQueue::getOutQueueCryptoContext ( uint32  ssrc )

inherited

Get an output queue CryptoContext identified by SSRC.

Parameters

ssrc	Request CryptoContext for this incoming SSRC

Returns

Pointer to CryptoContext of the SSRC of NULL if no context available for this SSRC.

microtimeout_t OutgoingDataQueue::getSchedulingTimeout ( )

protectedinherited

This computes the timeout period for scheduling transmission of the next packet at the "head" of the send buffer.

If no packets are waiting, a default timeout is used. This actually forms the "isPending()" timeout of the rtp receiver in the service thread.

Returns

timeout until next packet is scheduled to send.

uint32 MembershipBookkeeping::getSendersCount ( )

inlineprotectedinherited

Definition at line 851 of file iqueue.h.

uint32 OutgoingDataQueue::getSendOctetCount ( ) const

inlineinherited

Get the total number of octets (payload only) sent so far.

Returns

total number of payload octets sent in RTP packets.

Definition at line 403 of file oqueue.h.

uint32 OutgoingDataQueue::getSendPacketCount ( ) const

inlineinherited

Get the total number of packets sent so far.

Returns

total number of packets sent

Definition at line 394 of file oqueue.h.

uint16 OutgoingDataQueue::getSequenceNumber ( ) const

inlineinherited

Get the sequence number of the next outgoing packet.

Returns

the 16 bit sequence number.

Definition at line 412 of file oqueue.h.

uint32 RTPDataQueue::getSessionBandwidth ( ) const

inline

Definition at line 222 of file ioqueue.h.

SyncSourceLink* MembershipBookkeeping::getSourceBySSRC ( uint32  ssrc, bool &  created  )

protectedinherited

Get the description of a source by its ssrc identifier.

Parameters

ssrc	SSRC identifier, in host order.
created	whether a new source has been created.

Returns

Pointer to the SyncSource object identified by ssrc.

timeout_t RTPDataQueue::getTimeclock ( ) const

inline

Get the packet timeclock for synchronizing timestamps.

Returns

runtime in milliseconds since last set.

Definition at line 238 of file ioqueue.h.

IncomingDataQueue::IncomingRTPPktLink* IncomingDataQueue::getWaiting ( uint32  timestamp, const SyncSource *  src = NULL  )

protectedinherited

This is used to fetch a packet in the receive queue and to expire packets older than the current timestamp.

Returns

packet buffer object for current timestamp if found.

Parameters

timestamp	timestamp requested.
src	optional source selector

Note

if found, the packet is removed from the reception queue

void RTPDataQueue::initQueue ( )

private

Global queue initialization.

Parameters

localSSRC

local 32-bit SSRC identifier

bool IncomingDataQueue::insertRecvPacket ( IncomingRTPPktLink *  packetLink )

protectedinherited

Insert a just received packet in the queue (both general and source specific queues).

If the packet was already in the queue (same SSRC and sequence number), it is not inserted but deleted.

Parameters

packetLink

link to a packet just received and generally validated and processed by onRTPPacketRecv.

Returns

whether the packet was successfully inserted.

Return values

false	when the packet is duplicated (there is already a packet from the same source with the same timestamp).
true	when the packet is not duplicated.

bool RTPDataQueue::isActive ( void  ) const

inline

Get active connection state flag.

Returns

true if connection "active".

Definition at line 141 of file ioqueue.h.

bool MembershipBookkeeping::isMine ( const SyncSource &  source ) const

inlineprotectedinherited

Get whether a synchronization source is recorded in this membership controller.

Definition at line 345 of file iqueue.h.

virtual bool RTPDataQueue::isPendingData ( microtimeout_t  timeout )

protectedpure virtual

This function is used to check for and schedule against arriving packets based on the derived connection type.

Returns

true if packet waiting for processing.

Parameters

number

of microseconds to wait.

Implemented in RTPDuplex.

bool MembershipBookkeeping::isRegistered ( uint32  ssrc )

protectedinherited

Returns whether there is already a synchronizacion source with "ssrc" SSRC identifier.

bool OutgoingDataQueue::isSending ( ) const

inherited

Determine if outgoing packets are waiting to send.

Returns

true if there are packets waiting to be send.

bool DestinationListHandler::isSingleDestination ( ) const

inlineinherited

Get whether there is only a destination in the list.

Definition at line 82 of file oqueue.h.

bool IncomingDataQueue::isWaiting ( const SyncSource *  src = NULL ) const

inherited

Determine if packets are waiting in the reception queue.

Parameters

src	Optional synchronization source selector.

Returns

True if packets are waiting.

void DestinationListHandler::lockDestinationList ( ) const

inlineinherited

Definition at line 88 of file oqueue.h.

virtual void IncomingDataQueue::onExpireRecv ( IncomingRTPPkt &  )

inlineprotectedvirtualinherited

A hook to filter packets in the receive queue that are being expired.

This hook may be used to do some application specific processing on expired packets before they are deleted.

Parameters

-	packet expired from the recv queue.

Definition at line 1217 of file iqueue.h.

virtual void IncomingDataQueue::onNewSyncSource ( const SyncSource &  )

inlineprotectedvirtualinherited

Virtual called when a new synchronization source has joined the session.

Parameters

-	new synchronization source

Definition at line 1185 of file iqueue.h.

virtual bool IncomingDataQueue::onRTPPacketRecv ( IncomingRTPPkt &  )

inlineprotectedvirtualinherited

A virtual function to support parsing of arriving packets to determine if they should be kept in the queue and to dispatch events.

A generic header validity check (as specified in RFC 1889) is performed on every incoming packet. If the generic check completes succesfully, this method is called before the packet is actually inserted into the reception queue.

May be used to perform additional validity checks or to do some application specific processing.

Parameters

-	packet just received.

Returns

true if packet is kept in the incoming packets queue.

Definition at line 1206 of file iqueue.h.

virtual bool IncomingDataQueue::onSRTPPacketError ( IncomingRTPPkt &  pkt, int32  errorCode  )

inlineprotectedvirtualinherited

A hook that gets called if the decoding of an incoming SRTP was erroneous.

Parameters

pkt	The SRTP packet with error.
errorCode	The error code: -1 - SRTP authentication failure, -2 - replay check failed

Returns

True: put the packet in incoming queue for further processing by the applications; false: dismiss packet. The default implementation returns false.

Reimplemented in ZrtpQueue.

Definition at line 1234 of file iqueue.h.

RTPDataQueue& RTPDataQueue::operator= ( const RTPDataQueue &  o )

private

void IncomingDataQueue::purgeIncomingQueue ( )

protectedinherited

void OutgoingDataQueue::purgeOutgoingQueue ( )

protectedinherited

void OutgoingDataQueue::putData ( uint32  stamp, const unsigned char *  data = NULL, size_t  len = 0  )

inherited

This is used to create a data packet in the send queue.

Sometimes a "NULL" or empty packet will be used instead, and these are known as "silent" packets. "Silent" packets are used simply to "push" the scheduler along more accurately by giving the appearence that a next packet is waiting to be sent and to provide a valid timestamp for that packet.

Parameters

stamp	Timestamp for expected send time of packet.
data	Value or NULL if special "silent" packet.
len	May be 0 to indicate a default by payload type.

void IncomingDataQueue::recordExtraction ( const IncomingRTPPkt &  pkt )

protectedinherited

Log extraction of a packet from this source from the scheduled reception queue.

Parameters

pkt	Packet extracted from the queue.

bool IncomingDataQueue::recordReception ( SyncSourceLink &  srcLink, const IncomingRTPPkt &  pkt, const timeval  recvtime  )

protectedinherited

Log reception of a new RTP packet from this source.

Usually updates data such as the packet counter, the expected sequence number for the next packet and the time the last packet was received at.

Parameters

srcLink	Link structure for the synchronization source of this packet.
pkt	Packet just created and to be logged.
recvtime	Reception time.

Returns

whether, according to the source state and statistics, the packet is considered valid and must be inserted in the incoming packets queue.

virtual size_t IncomingDataQueue::recvData ( unsigned char *  buffer, size_t  length, InetHostAddress &  host, tpport_t &  port  )

protectedpure virtualinherited

This function performs the physical I/O for reading a packet from the source.

It is a virtual that is overriden in the derived class.

Returns

number of bytes read.

Parameters

buffer	of read packet.
length	of data to read.
host	address of source.
port	number of source.

Implemented in RTPDuplex.

bool OutgoingDataQueue::removeContributor ( uint32  csrc )

inherited

Remove CSRC from the list of contributors.

bool DestinationListHandler::removeDestinationFromList ( const InetAddress &  ia, tpport_t  dataPort, tpport_t  controlPort  )

protectedinherited

Locks the object before modifying it.

void IncomingDataQueue::removeInQueueCryptoContext ( CryptoContext *  cc )

inherited

Remove input queue CryptoContext.

The endQueue method (provided by RTPQueue) also deletes all registered CryptoContexts.

Parameters

cc	Pointer to initialized CryptoContext to remove. If pointer if NULL then delete the whole queue

void OutgoingDataQueue::removeOutQueueCryptoContext ( CryptoContext *  cc )

inherited

Remove output queue CryptoContext.

The endQueue method (provided by RTPQueue) also deletes all registered CryptoContexts.

Parameters

cc	Pointer to initialized CryptoContext to remove.

void ApplicationHandler::removeParticipant ( RTPApplication &  app, RTPApplication::ParticipantLink *  pl  )

inlineinherited

Definition at line 216 of file iqueue.h.

bool MembershipBookkeeping::removeSource ( uint32  ssrc )

protectedinherited

Remove the description of the source identified by ssrc

Returns

whether the source has been actually removed or it did not exist.

void RTPDataQueue::renewLocalSSRC ( )

inlineprotectedvirtual

Reimplemented from RTPQueueBase.

Definition at line 284 of file ioqueue.h.

ConflictingTransportAddress* ConflictHandler::searchControlConflict ( InetAddress  na, tpport_t  ctp  )

inherited

Parameters

na	Inet network address.
ctp	Data transport port.

ConflictingTransportAddress* ConflictHandler::searchDataConflict ( InetAddress  na, tpport_t  dtp  )

inherited

Parameters

na	Inet network address.
dtp	Data transport port.

void OutgoingDataQueue::sendImmediate ( uint32  stamp, const unsigned char *  data = NULL, size_t  len = 0  )

inherited

This is used to create a data packet and send it immediately.

Sometimes a "NULL" or empty packet will be used instead, and these are known as "silent" packets. "Silent" packets are used simply to "push" the scheduler along more accurately by giving the appearence that a next packet is waiting to be sent and to provide a valid timestamp for that packet.

Parameters

stamp	Timestamp immediate send time of packet.
data	Value or NULL if special "silent" packet.
len	May be 0 to indicate a default by payload type.

virtual void OutgoingDataQueue::setControlPeer ( const InetAddress &  host, tpport_t  port  )

inlineprotectedvirtualinherited

Reimplemented in RTPDuplex.

Definition at line 543 of file oqueue.h.

void SyncSourceHandler::setControlTransportPort ( SyncSource &  source, tpport_t  p  )

inlineinherited

Definition at line 161 of file iqueue.h.

void SyncSourceHandler::setDataTransportPort ( SyncSource &  source, tpport_t  p  )

inlineinherited

Definition at line 157 of file iqueue.h.

void OutgoingDataQueue::setExpireTimeout ( microtimeout_t  to )

inlineinherited

Set the "expired" timer for expiring packets pending in the send queue which have gone unsent and are already "too late" to be sent now.

Parameters

to	timeout to expire unsent packets in milliseconds.

Definition at line 382 of file oqueue.h.

void OutgoingDataQueue::setInitialTimestamp ( uint32  ts )

inlineprotectedinherited

Definition at line 531 of file oqueue.h.

void IncomingDataQueue::setInQueueCryptoContext ( CryptoContext *  cc )

inherited

Set input queue CryptoContext.

The endQueue method (provided by RTPQueue) deletes all registered CryptoContexts.

Parameters

cc	Pointer to initialized CryptoContext.

void SyncSourceHandler::setLink ( SyncSource &  source, void *  link  )

inlineinherited

Definition at line 141 of file iqueue.h.

void RTPQueueBase::setLocalSSRC ( uint32  ssrc )

inlineprotectedinherited

Definition at line 214 of file queuebase.h.

void OutgoingDataQueue::setMark ( bool  mark )

inlineinherited

Set marker bit for the packet in which the next data provided will be send.

When transmitting audio, should be set for the first packet of a talk spurt. When transmitting video, should be set for the last packet for a video frame.

Parameters

mark	Marker bit value for next packet.

Definition at line 334 of file oqueue.h.

void IncomingDataQueue::setMaxPacketDropout ( uint16  packets )

inlineinherited

It also prevents packets sent after a restart of the source being immediately accepted.

Definition at line 1031 of file iqueue.h.

void IncomingDataQueue::setMaxPacketMisorder ( uint16  packets )

inlineinherited

Definition at line 1014 of file iqueue.h.

void IncomingDataQueueBase::setMaxRecvPacketSize ( size_t  maxsize )

inlineinherited

Parameters

maxsize

maximum length of received RTP data packets, in octets. Defaults to the value returned by getDefaultMaxRecvPacketSize().

Note

This method sets a filter for incoming packets. Setting higher values does not necessarily imply higher memory usage (this method does not set any buffer size).

Definition at line 319 of file queuebase.h.

void OutgoingDataQueueBase::setMaxSendSegmentSize ( size_t  size )

inlineinherited

Set maximum payload segment size before fragmenting sends.

Parameters

size	Maximum payload size.

Returns

Whether segment size was successfully set.

Definition at line 272 of file queuebase.h.

void MembershipBookkeeping::setMembersCount ( uint32  n )

inlineprotectedinherited

Definition at line 847 of file iqueue.h.

void IncomingDataQueue::setMinValidPacketSequence ( uint8  packets )

inlineinherited

When receiving packets from a new source, it may be convenient to reject a first few packets before we are really sure the source is valid.

This method sets how many data packets must be received in sequence before the source is considered valid and the stack starts to accept its packets.

Note

the default (see defaultMinValidPacketSequence()) value for this parameter is 0, so that no packets are rejected (data packets are accepted from the first one).

this validation is performed after the generic header validation and the additional validation done in onRTPPacketRecv().

if any valid RTCP packet is received from this source, it will be immediatly considered valid regardless of the number of sequential data packets received.

Parameters

packets

number of sequential packet required

Definition at line 998 of file iqueue.h.

void SyncSourceHandler::setNetworkAddress ( SyncSource &  source, InetAddress  addr  )

inlineinherited

Definition at line 165 of file iqueue.h.

void OutgoingDataQueue::setNextSeqNum ( uint32  seqNum )

inlineprotectedinherited

For thoses cases in which the application requires a method to set the sequence number for the outgoing stream (such as for implementing the RTSP PLAY command).

Parameters

seqNum

next sequence number to be used for outgoing packets.

Definition at line 521 of file oqueue.h.

void OutgoingDataQueue::setOutQueueCryptoContext ( CryptoContext *  cc )

inherited

Set ouput queue CryptoContext.

The endQueue method (provided by RTPQueue) deletes all registered CryptoContexts.

Parameters

cc	Pointer to initialized CryptoContext.

void OutgoingDataQueue::setPadding ( uint8  paddinglen )

inlineinherited

Set padding.

All outgoing packets will be transparently padded to a multiple of paddinglen.

Parameters

paddinglen

pad packets to a length multiple of paddinglen.

Definition at line 323 of file oqueue.h.

size_t OutgoingDataQueue::setPartial ( uint32  timestamp, unsigned char *  data, size_t  offset, size_t  max  )

inherited

Set partial data for an already queued packet.

This is often used for multichannel data.

Parameters

timestamp	Timestamp of packet.
data	Buffer to copy from.
offset	Offset to copy from.
max	Maximum data size.

Returns

Number of packet data bytes set.

void SyncSourceHandler::setParticipant ( SyncSource &  source, Participant &  p  )

inlineinherited

Definition at line 145 of file iqueue.h.

bool RTPQueueBase::setPayloadFormat ( const PayloadFormat &  pf )

inlineinherited

Set the payload format in use, for timing and payload type identification purposes.

Parameters

pf	payload format to use from now on.

Returns

whether the payload format has been successfully set.

Definition at line 180 of file queuebase.h.

void ParticipantHandler::setPRIVPrefix ( Participant *  part, const std::string  val  )

inlineinherited

Definition at line 191 of file iqueue.h.

void OutgoingDataQueue::setSchedulingTimeout ( microtimeout_t  to )

inlineinherited

Set the default scheduling timeout to use when no data packets are waiting to be sent.

Parameters

to	timeout in milliseconds.

Definition at line 367 of file oqueue.h.

void ParticipantHandler::setSDESItem ( Participant *  part, SDESItemType  item, const std::string &  val  )

inlineinherited

Definition at line 186 of file iqueue.h.

void SyncSourceHandler::setSender ( SyncSource &  source, bool  active  )

inlineinherited

Definition at line 153 of file iqueue.h.

void RTPDataQueue::setSessionBandwidth ( uint32  bw )

inline

Specify the bandwidth of the current session.

Parameters

bw	bandwidth of the current session, in bits/s.

See Also

AVPQueue::setControlBandwidth()

Definition at line 214 of file ioqueue.h.

void IncomingDataQueue::setSourceExpirationPeriod ( uint8  intervals )

inlineprotectedinherited

Set the number of RTCP intervals that the stack will wait to change the state of a source from stateActive to stateInactive, or to delete the source after being in stateInactive.

Note that this value should be uniform accross all participants and SHOULD be fixed for a particular profile.

Parameters

intervals

number of RTCP report intervals

Note

If RTCP is not being used, the RTCP interval is assumed to be the default: 5 seconds.

The default for this value is, as RECOMMENDED, 5.

Definition at line 1122 of file iqueue.h.

void SyncSourceHandler::setState ( SyncSource &  source, SyncSource::State  ns  )

inlineinherited

Definition at line 149 of file iqueue.h.

void RTPDataQueue::setTimeclock ( )

inline

Set the packet timeclock for synchronizing timestamps.

Definition at line 229 of file ioqueue.h.

void RTPDataQueue::setTypeOfService ( Tos  tos )

inline

Specify the kind of service the application expects to use.

Parameters

tos	type of service the application expects to use

Note

If enhanced service is specified but packet loss is high (the requested service does not appear to actually be delivered) ccRTP defaults to best-effort suitable behaviour: guarantee fair competition with TCP.

Todo:

Implement fair competition with tcp

Definition at line 119 of file ioqueue.h.

virtual size_t IncomingDataQueue::takeInDataPacket ( )

protectedvirtualinherited

This function is used by the service thread to process the next incoming packet and place it in the receive list.

Returns

number of payload bytes received. <0 if error.

Reimplemented in ZrtpQueue.

virtual void RTPDataQueue::timerTick ( )

inlineprotectedvirtual

A plugin point for timer tick driven events.

Definition at line 281 of file ioqueue.h.

void DestinationListHandler::unlockDestinationList ( ) const

inlineinherited

Definition at line 91 of file oqueue.h.

void ConflictHandler::updateConflict ( ConflictingTransportAddress &  ca )

inlineinherited

Definition at line 276 of file iqueue.h.

void DestinationListHandler::writeLockDestinationList ( ) const

inlineprotectedinherited

Definition at line 95 of file oqueue.h.

Field Documentation

bool OutgoingDataQueue::complete

inherited

Definition at line 618 of file oqueue.h.

std::list<CryptoContext *> OutgoingDataQueue::cryptoContexts

protectedinherited

Definition at line 552 of file oqueue.h.

std::list<CryptoContext *> IncomingDataQueue::cryptoContexts

protectedinherited

Definition at line 1290 of file iqueue.h.

Mutex OutgoingDataQueue::cryptoMutex

mutableprotectedinherited

Definition at line 551 of file oqueue.h.

Mutex IncomingDataQueue::cryptoMutex

mutableprotectedinherited

Definition at line 1289 of file iqueue.h.

volatile bool RTPDataQueue::dataServiceActive

private

Definition at line 320 of file ioqueue.h.

const uint16 IncomingDataQueue::defaultMaxPacketDropout

staticprotectedinherited

Definition at line 1283 of file iqueue.h.

const uint16 IncomingDataQueue::defaultMaxPacketMisorder

staticprotectedinherited

Definition at line 1282 of file iqueue.h.

const size_t MembershipBookkeeping::defaultMembersHashSize

staticprotectedinherited

Definition at line 854 of file iqueue.h.

const size_t IncomingDataQueue::defaultMembersSize

staticprotectedinherited

Definition at line 1287 of file iqueue.h.

const uint8 IncomingDataQueue::defaultMinValidPacketSequence

staticprotectedinherited

Definition at line 1281 of file iqueue.h.

const uint32 RTPDataQueue::defaultSessionBw

staticprivate

Definition at line 324 of file ioqueue.h.

std::list<TransportAddress*> DestinationListHandler::destList

protectedinherited

Definition at line 71 of file oqueue.h.

ConflictingTransportAddress* ConflictHandler::firstConflict

protectedinherited

Definition at line 288 of file iqueue.h.

ConflictingTransportAddress * ConflictHandler::lastConflict

protectedinherited

Definition at line 288 of file iqueue.h.

bool OutgoingDataQueue::marked

inherited

Definition at line 616 of file oqueue.h.

uint16 IncomingDataQueue::maxPacketDropout

protectedinherited

Definition at line 1286 of file iqueue.h.

uint16 IncomingDataQueue::maxPacketMisorder

protectedinherited

Definition at line 1285 of file iqueue.h.

uint8 IncomingDataQueue::minValidPacketSequence

protectedinherited

Definition at line 1284 of file iqueue.h.

uint32 OutgoingDataQueue::octetCount

inherited

Definition at line 604 of file oqueue.h.

timeval OutgoingDataQueue::overflowTime

inherited

Definition at line 623 of file oqueue.h.

uint32 OutgoingDataQueue::packetCount

inherited

Definition at line 602 of file oqueue.h.

uint8 OutgoingDataQueue::paddinglen

inherited

Definition at line 612 of file oqueue.h.

IncomingRTPPktLink* IncomingDataQueue::recvFirst

protectedinherited

Definition at line 1279 of file iqueue.h.

IncomingRTPPktLink * IncomingDataQueue::recvLast

protectedinherited

Definition at line 1279 of file iqueue.h.

ThreadLock IncomingDataQueue::recvLock

mutableprotectedinherited

Definition at line 1277 of file iqueue.h.

uint16 OutgoingDataQueue::sendCC

inherited

Definition at line 610 of file oqueue.h.

uint16 OutgoingDataQueue::sendSeq

inherited

Definition at line 606 of file oqueue.h.

uint32 OutgoingDataQueue::sendSources[16]

inherited

Definition at line 608 of file oqueue.h.

const uint32 MembershipBookkeeping::SEQNUMMOD

staticprotectedinherited

Definition at line 855 of file iqueue.h.

uint32 RTPDataQueue::sessionBw

private

Definition at line 325 of file ioqueue.h.

uint8 IncomingDataQueue::sourceExpirationPeriod

protectedinherited

Definition at line 1288 of file iqueue.h.

TimerPort RTPDataQueue::timeclock

private

Definition at line 322 of file ioqueue.h.

Tos RTPDataQueue::typeOfService

private

Definition at line 321 of file ioqueue.h.

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The documentation for this class was generated from the following file:

• ioqueue.h