QueueRTCPManager(3) | Library Functions Manual | QueueRTCPManager(3) |
NAME¶
QueueRTCPManager - Adds generic management of RTCP functions to an RTP data queue.SYNOPSIS¶
#include <cqueue.h> Inherits RTPDataQueue, and RTCPCompoundHandler. Inherited by AVPQueue.Public Member Functions¶
RTCPSenderInfo * getMRSenderInfo (SyncSource &src)
Protected Member Functions¶
QueueRTCPManager (uint32 size=RTPDataQueue::defaultMembersHashSize, RTPApplication &app= defaultApplication())
Additional Inherited Members¶
Detailed Description¶
Adds generic management of RTCP functions to an RTP data queue. Extends an RTP data i/o queue adding management of RTCP functions: Provide feedback on the quality of the data distribution. Convey the CNAME (persistent transport-level identifier) for every RTP source. Control the sending rate of RTCP packets Convey minimal control information about the participants This class implements generic RTCP behaviour (as specified in RFC 1889/draft-ietf-avt-rtp-new) and may be specialized for specific profiles (see AVPQueue) or particular RTCP extensions. Author:Federico Montesino Pouzols fedemp@altern.org
Constructor & Destructor Documentation¶
QueueRTCPManager::QueueRTCPManager (uint32size = RTPDataQueue::defaultMembersHashSize, RTPApplication &app = defaultApplication()) [protected] ¶
QueueRTCPManager::QueueRTCPManager (uint32ssrc, uint32size = RTPDataQueue::defaultMembersHashSize, RTPApplication &app = defaultApplication()) [protected] ¶
virtual QueueRTCPManager::~QueueRTCPManager () [protected], [virtual]¶
Member Function Documentation¶
bool QueueRTCPManager::checkSSRCInRTCPPkt ( SyncSourceLink &sourceLink, boolis_new, InetAddress &na, tpport_ttp) [protected]¶
Appy collision and loop detection and correction algorithm when receiving RTCP packets. Follows section 8.2 in draft-ietf-avp-rtp-new. Parameters:sourceLink link to the source object.
is_new whether the source has been just recorded.
na RTCP packet network address.
tp RTCP packet source transport port.
Returns:
whether the packet must not be discarded.
void QueueRTCPManager::controlReceptionService () [protected]¶
Process incoming RTCP packets pending in the control reception socket.void QueueRTCPManager::controlTransmissionService () [protected]¶
Build and send RTCP packets following timing rules (including the 'timer reconsideration' algorithm).size_t QueueRTCPManager::dispatchBYE (const std::string &reason) [protected], [virtual]¶
This method is used to send an RTCP BYE packet. An RTCP BYE packet is sent when one of the the following circumstances occur:- •
- when leaving the session
- •
- when we have detected that another synchronization source in the same session is using the same SSRC identifier as us.
reason reason to specify in the BYE packet.
Reimplemented from RTPQueueBase.
void QueueRTCPManager::endQueueRTCPManager () [protected]¶
const RTPApplication& QueueRTCPManager::getApplication () [inline], [protected]¶
float QueueRTCPManager::getControlBandwidth () const [inline], [protected]¶
microtimeout_t QueueRTCPManager::getDefaultEnd2EndDelay () const [inline]¶
microtimeout_t QueueRTCPManager::getEnd2EndDelay () const [inline]¶
CryptoContextCtrl* QueueRTCPManager::getInQueueCryptoContextCtrl (uint32ssrc)¶
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.
uint32 QueueRTCPManager::getLastSendPacketCount () const [inline], [protected]¶
Get the number of data packets sent at the time the last SR was generated.RTCPReceiverInfo* QueueRTCPManager::getMRReceiverInfo ( SyncSource &srcFrom)¶
Ask for the info in the most recent receiver report about the local source received from the source given as parameter. Parameters:srcFrom Source of the receiver info.
Returns:
most recent receiver info received from src.
Return values:
NULL when no receiver report has been received
from the specified source.
RTCPSenderInfo* QueueRTCPManager::getMRSenderInfo ( SyncSource &src)¶
Get the most recent sender report received from a synchronization source. Parameters:src Synchronization source of the sender
info.
Returns:
Most recent sender info received from src.
Return values:
NULL when no sender report has been received from
the specified source.
CryptoContextCtrl* QueueRTCPManager::getOutQueueCryptoContextCtrl (uint32ssrc)¶
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.
uint32 QueueRTCPManager::getPrevMembersCount () const [inline], [protected]¶
timeval QueueRTCPManager::getRTCPCheckInterval () [inline], [protected]¶
uint32 QueueRTCPManager::getSendRTCPPacketCount () const [inline]¶
Get the total number of RTCP packets sent until now.virtual void QueueRTCPManager::onGotAPP ( SyncSource &, RTCPCompoundHandler::APPPacket &, size_t) [inline], [protected], [virtual]¶
Plug-in for handling of APP (application specific) RTCP packets. Parameters:- Synchronization source of this packet.
- RTCP APP packet struct.
- Length of the app data packet, including ssrc. name and app. specific
data.
virtual void QueueRTCPManager::onGotRR ( SyncSource &source, RecvReport &RR, uint8blocks) [protected], [virtual]¶
Plug-in for processing (acquire information carried in) an incoming RTCP Receiver Report. The default implementation in this class only processes the receiver report blocks about the local source. Parameters:source Synchronization source this report comes
from.
RR Receiver report structure
blocks Number of report blocks in the packet
bool QueueRTCPManager::onGotSDES ( SyncSource &source, RTCPPacket &pkt) [protected]¶
Parameters:source Synchronization source of SDES RTCP packet.
pkt SDES RTCP packet received.
virtual bool QueueRTCPManager::onGotSDESChunk ( SyncSource &source, SDESChunk &chunk, size_tlen) [protected], [virtual]¶
Plug-in for handling of SDES chunks. Parameters:source Synchronization source of SDES chunk.
chunk SDES chunk structure.
len Length of chunk, in octets.
Returns:
whether there was a CNAME.
virtual void QueueRTCPManager::onGotSR ( SyncSource &source, SendReport &SR, uint8blocks) [protected], [virtual]¶
Plug-in for processing (acquire information carried in) an incoming RTCP Sender Report. The default implementation in this class only processes the sender information and the receiver report blocks about the local source. Parameters:source Synchronization source this report comes
from.
SR Sender report structure.
blocks Number of report blocks in the packet.
void QueueRTCPManager::removeInQueueCryptoContextCtrl ( CryptoContextCtrl *cc)¶
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 QueueRTCPManager::removeOutQueueCryptoContextCtrl ( CryptoContextCtrl *cc)¶
Remove output queue CryptoContext. The endQueue method (provided by RTPQueue) also deletes all registered CryptoContexts. Parameters:cc Pointer to initialized CryptoContext to
remove.
size_t QueueRTCPManager::sendControlToDestinations (unsigned char *buffer, size_tlen) [protected]¶
void QueueRTCPManager::setControlBandwidth (floatfraction) [inline], [protected]¶
void QueueRTCPManager::setEnd2EndDelay ( microtimeout_tt) [inline]¶
This method sets the maximum end to end delay allowed. If the processing delay plus the trip time for a packet is greater than the end to end delay, the packet is discarded, and the application cannot get it. This is a way of setting an upper bound to the end to end delay, computed as the elapsed time between the packet timestamping at the sender side, and the picking of the packet at the receiver side. Parameters:t maximum end to end delay allowed. A value of 0
implies there is no limit and is the default
void QueueRTCPManager::setInQueueCryptoContextCtrl ( CryptoContextCtrl *cc)¶
Set input queue CryptoContext. The endQueue method (provided by RTPQueue) deletes all registered CryptoContexts. Parameters:cc Pointer to initialized
CryptoContext.
void QueueRTCPManager::setLeavingDelay ( microtimeout_tdelay) [inline]¶
Set how much time the stack will wait before deleting a synchronization source that has sent an RTCP BYE packet. Parameters:delay delay in microseconds.
Note:
The default delay is 1000000 microseconds
void QueueRTCPManager::setMinRTCPInterval ( microtimeout_tinterval) [inline]¶
Manually set the minimum interval for sending RTP compound packets. Parameters:interval minimum interval between RTCP packets, in
microseconds.
See also:
computeRTCPInterval()
void QueueRTCPManager::setOutQueueCryptoContextCtrl ( CryptoContextCtrl *cc)¶
Set output queue CryptoContext. The endQueue method (provided by RTPQueue) deletes all registered CryptoContexts. Parameters:cc Pointer to initialized
CryptoContext.
void QueueRTCPManager::setPrevMembersNum (uint32n) [inline], [protected]¶
Parameters:n Number of members.
void QueueRTCPManager::setSendersControlFraction (floatfraction) [inline]¶
Specify the fraction of the total control bandwith to be dedicated to senders reports. Parameters:fraction fraction of bandwidth, must be between 0
an 1.
This method sets the fraction of the global control bandwidth that will be
dedicated to senders reports. Of course, 1 - fraction will be dedicated to
receivers reports.
See also:
setControlBandwidth
Member Data Documentation¶
uint32 QueueRTCPManager::rtcpPMembers¶
timeval QueueRTCPManager::rtcpTc¶
timeval QueueRTCPManager::rtcpTn¶
timeval QueueRTCPManager::rtcpTp¶
Author¶
Generated automatically by Doxygen for ccRTP from the source code.Wed Jun 25 2014 | ccRTP |