NAME

       IncomingRTPPkt - RTP packets received from other participants.

SYNOPSIS

       #include <rtppkt.h>

       Inherits RTPPacket.

   Public Member Functions
       IncomingRTPPkt (const unsigned char *block, size_t len)
           Build an RTP packet object from a data buffer.
       ~IncomingRTPPkt ()
       bool isHeaderValid ()
           Get validity of this packet.
       uint32 getSSRC () const
           Get synchronization source numeric identifier.
       int32 unprotect (CryptoContext *pcc)
           Unprotect a received packet.
       bool operator== (const IncomingRTPPkt &p) const
           Two incoming packets are equal if they come from sources with the same SSRC and have
           the same sequence number.
       bool operator!= (const IncomingRTPPkt &p) const
           Two incoming packets are not equal if they come from different sources or have
           different sequence numbers.

   Additional Inherited Members

Detailed Description

       RTP packets received from other participants.

       This class is intented to construct a packet object just after every packet is received by
       the scheduled queue, so that they are processed in an understandable and format
       independent manner inside the stack.

       Author:
           Federico Montesino Pouzols fedemp@altern.org

Constructor & Destructor Documentation

   IncomingRTPPkt::IncomingRTPPkt (const unsigned char * block, size_t len)
       Build an RTP packet object from a data buffer. This constructor first performs a generic
       RTP data packet header check, whose result can be checked via isHeaderValid().

       Parameters:
           block pointer to the buffer the whole packet is stored in.
           len length of the whole packet, expressed in octets.

       Note:
           If check fails, the packet object is incomplete. checking isHeaderValid() is
           recommended before using a new RTPPacket object.

   IncomingRTPPkt::~IncomingRTPPkt () [inline]

Member Function Documentation

   uint32 IncomingRTPPkt::getSSRC () const [inline]
       Get synchronization source numeric identifier.

       Returns:
           32-bits Synchronization SouRCe numeric identifier, in host order.

   bool IncomingRTPPkt::isHeaderValid () [inline]
       Get validity of this packet.

       Returns:
           whether the header check performed at construction time ended successfully.

   bool IncomingRTPPkt::operator!= (const IncomingRTPPkt & p) const [inline]
       Two incoming packets are not equal if they come from different sources or have different
       sequence numbers.

   bool IncomingRTPPkt::operator== (const IncomingRTPPkt & p) const [inline]
       Two incoming packets are equal if they come from sources with the same SSRC and have the
       same sequence number.

   int32 IncomingRTPPkt::unprotect (CryptoContext * pcc)
       Unprotect a received packet. Perform SRTP processing on this packet.

       Parameters:
           pcc Pointer to SRTP CryptoContext.

       Returns:
           one if no errors, -1 if authentication failed, -2 if replay check failed

Author

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