qrtplib::RTPPacketBuilder Class Reference

#include <rtppacketbuilder.h>

Collaboration diagram for qrtplib::RTPPacketBuilder:

Public Member Functions
	RTPPacketBuilder (RTPRandom &rtprand)
	~RTPPacketBuilder ()
int	Init (unsigned int maxpacksize)
void	Destroy ()
uint32_t	GetPacketCount ()
uint32_t	GetPayloadOctetCount ()
int	SetMaximumPacketSize (unsigned int maxpacksize)
int	AddCSRC (uint32_t csrc)
int	DeleteCSRC (uint32_t csrc)
void	ClearCSRCList ()
int	BuildPacket (const void *data, unsigned int len)
int	BuildPacket (const void *data, unsigned int len, uint8_t pt, bool mark, uint32_t timestampinc)
int	BuildPacketEx (const void *data, unsigned int len, uint16_t hdrextID, const void *hdrextdata, unsigned int numhdrextwords)
int	BuildPacketEx (const void *data, unsigned int len, uint8_t pt, bool mark, uint32_t timestampinc, uint16_t hdrextID, const void *hdrextdata, unsigned int numhdrextwords)
uint8_t *	GetPacket ()
unsigned int	GetPacketLength ()
int	SetDefaultPayloadType (uint8_t pt)
int	SetDefaultMark (bool m)
int	SetDefaultTimestampIncrement (uint32_t timestampinc)
int	IncrementTimestamp (uint32_t inc)
int	IncrementTimestampDefault ()
uint32_t	CreateNewSSRC ()
uint32_t	CreateNewSSRC (RTPSources &sources)
uint32_t	GetSSRC () const
uint32_t	GetTimestamp () const
uint16_t	GetSequenceNumber () const
RTPTime	GetPacketTime () const
uint32_t	GetPacketTimestamp () const
void	AdjustSSRC (uint32_t s)

Private Member Functions
int	PrivateBuildPacket (const void *data, unsigned int len, uint8_t pt, bool mark, uint32_t timestampinc, bool gotextension, uint16_t hdrextID=0, const void *hdrextdata=0, unsigned int numhdrextwords=0)

Private Attributes
RTPRandom &	rtprnd
unsigned int	maxpacksize
uint8_t *	buffer
unsigned int	packetlength
uint32_t	numpayloadbytes
uint32_t	numpackets
bool	init
uint32_t	ssrc
uint32_t	timestamp
uint16_t	seqnr
uint32_t	defaulttimestampinc
uint8_t	defaultpayloadtype
bool	defaultmark
bool	deftsset
bool	defptset
bool	defmarkset
uint32_t	csrcs [RTP_MAXCSRCS]
int	numcsrcs
RTPTime	lastwallclocktime
uint32_t	lastrtptimestamp
uint32_t	prevrtptimestamp

Detailed Description

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.

Definition at line 58 of file rtppacketbuilder.h.

Constructor & Destructor Documentation

RTPPacketBuilder()

qrtplib::RTPPacketBuilder::RTPPacketBuilder

(

RTPRandom &

rtprand

)

Constructs an instance which will use rtprand for generating random numbers (used to initialize the SSRC value and sequence number), optionally installing a memory manager.

Definition at line 43 of file rtppacketbuilder.cpp.

References csrcs, defaultmark, defaultpayloadtype, defaulttimestampinc, defmarkset, defptset, deftsset, qrtplib::RTPTimeInitializerObject::Dummy(), init, lastrtptimestamp, numcsrcs, numpackets, numpayloadbytes, prevrtptimestamp, RTP_MAXCSRCS, seqnr, ssrc, qrtplib::timeinit, and timestamp.

                                               :
        rtprnd(r),
        maxpacksize(0),
        buffer(0),
        packetlength(0),
        lastwallclocktime(0, 0)
{
    init = false;
    deftsset = false;
    defptset = false;
    defmarkset = false;
    defaultmark = false;
    defaulttimestampinc = 0;
    ssrc = 0;
    timestamp = 0;
    seqnr = 0;
    prevrtptimestamp = 0;
    lastrtptimestamp = 0;
    defaultpayloadtype = 0;
    numcsrcs = 0;
    numpayloadbytes = 0;
    numpackets = 0;
    memset((char *) csrcs, 0, RTP_MAXCSRCS*sizeof(uint32_t));
    timeinit.Dummy();

    //std::cout << (void *)(&rtprnd) << std::endl;
}

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~RTPPacketBuilder()

qrtplib::RTPPacketBuilder::~RTPPacketBuilder

(

)

Definition at line 71 of file rtppacketbuilder.cpp.

References Destroy().

{
    Destroy();
}

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Member Function Documentation

AddCSRC()

int qrtplib::RTPPacketBuilder::AddCSRC

(

uint32_t

csrc

)

Adds a CSRC to the CSRC list which will be stored in the RTP packets.

Definition at line 122 of file rtppacketbuilder.cpp.

References csrcs, ERR_RTP_PACKBUILD_CSRCALREADYINLIST, ERR_RTP_PACKBUILD_CSRCLISTFULL, ERR_RTP_PACKBUILD_NOTINIT, i, init, numcsrcs, and RTP_MAXCSRCS.

{
    if (!init)
        return ERR_RTP_PACKBUILD_NOTINIT;
    if (numcsrcs >= RTP_MAXCSRCS)
        return ERR_RTP_PACKBUILD_CSRCLISTFULL;

    int i;

    for (i = 0; i < numcsrcs; i++)
    {
        if (csrcs[i] == csrc)
            return ERR_RTP_PACKBUILD_CSRCALREADYINLIST;
    }
    csrcs[numcsrcs] = csrc;
    numcsrcs++;
    return 0;
}

AdjustSSRC()

void qrtplib::RTPPacketBuilder::AdjustSSRC ( uint32_t  s )

inline

Sets a specific SSRC to be used. Sets a specific SSRC to be used. Does not create a new timestamp offset or sequence number offset. Does not reset the packet count or byte count. Think twice before using this!

Definition at line 235 of file rtppacketbuilder.h.

Referenced by qrtplib::RTPSession::InternalCreate().

    {
        ssrc = s;
    }

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BuildPacket() [1/2]

int qrtplib::RTPPacketBuilder::BuildPacket	(	const void *	data,
		unsigned int	len
	)

Builds a packet with payload data and payload length len. Builds a packet with payload data and payload length len. The payload type, marker and timestamp increment used will be those that have been set using the SetDefault functions below.

Definition at line 207 of file rtppacketbuilder.cpp.

References defaultmark, defaultpayloadtype, defaulttimestampinc, defmarkset, defptset, deftsset, ERR_RTP_PACKBUILD_DEFAULTMARKNOTSET, ERR_RTP_PACKBUILD_DEFAULTPAYLOADTYPENOTSET, ERR_RTP_PACKBUILD_DEFAULTTSINCNOTSET, ERR_RTP_PACKBUILD_NOTINIT, init, and PrivateBuildPacket().

Referenced by qrtplib::RTPSession::SendPacket().

{
    if (!init)
        return ERR_RTP_PACKBUILD_NOTINIT;
    if (!defptset)
        return ERR_RTP_PACKBUILD_DEFAULTPAYLOADTYPENOTSET;
    if (!defmarkset)
        return ERR_RTP_PACKBUILD_DEFAULTMARKNOTSET;
    if (!deftsset)
        return ERR_RTP_PACKBUILD_DEFAULTTSINCNOTSET;
    return PrivateBuildPacket(data, len, defaultpayloadtype, defaultmark, defaulttimestampinc, false);
}

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BuildPacket() [2/2]

int qrtplib::RTPPacketBuilder::BuildPacket	(	const void *	data,
		unsigned int	len,
		uint8_t	pt,
		bool	mark,
		uint32_t	timestampinc
	)

Builds a packet with payload data and payload length len. Builds a packet with payload data and payload length len. The payload type will be set to pt, the marker bit to mark and after building this packet, the timestamp will be incremented with timestamp.

Definition at line 220 of file rtppacketbuilder.cpp.

References ERR_RTP_PACKBUILD_NOTINIT, init, and PrivateBuildPacket().

{
    if (!init)
        return ERR_RTP_PACKBUILD_NOTINIT;
    return PrivateBuildPacket(data, len, pt, mark, timestampinc, false);
}

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BuildPacketEx() [1/2]

int qrtplib::RTPPacketBuilder::BuildPacketEx	(	const void *	data,
		unsigned int	len,
		uint16_t	hdrextID,
		const void *	hdrextdata,
		unsigned int	numhdrextwords
	)

Builds a packet with payload data and payload length len. Builds a packet with payload data and payload length len. The payload type, marker and timestamp increment used will be those that have been set using the SetDefault functions below. This packet will also contain an RTP header extension with identifier hdrextID and data hdrextdata. The length of the header extension data is given by numhdrextwords which expresses the length in a number of 32-bit words.

Definition at line 227 of file rtppacketbuilder.cpp.

References defaultmark, defaultpayloadtype, defaulttimestampinc, defmarkset, defptset, deftsset, ERR_RTP_PACKBUILD_DEFAULTMARKNOTSET, ERR_RTP_PACKBUILD_DEFAULTPAYLOADTYPENOTSET, ERR_RTP_PACKBUILD_DEFAULTTSINCNOTSET, ERR_RTP_PACKBUILD_NOTINIT, init, and PrivateBuildPacket().

Referenced by qrtplib::RTPSession::SendPacketEx().

{
    if (!init)
        return ERR_RTP_PACKBUILD_NOTINIT;
    if (!defptset)
        return ERR_RTP_PACKBUILD_DEFAULTPAYLOADTYPENOTSET;
    if (!defmarkset)
        return ERR_RTP_PACKBUILD_DEFAULTMARKNOTSET;
    if (!deftsset)
        return ERR_RTP_PACKBUILD_DEFAULTTSINCNOTSET;
    return PrivateBuildPacket(data, len, defaultpayloadtype, defaultmark, defaulttimestampinc, true, hdrextID, hdrextdata, numhdrextwords);
}

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BuildPacketEx() [2/2]

int qrtplib::RTPPacketBuilder::BuildPacketEx	(	const void *	data,
		unsigned int	len,
		uint8_t	pt,
		bool	mark,
		uint32_t	timestampinc,
		uint16_t	hdrextID,
		const void *	hdrextdata,
		unsigned int	numhdrextwords
	)

Builds a packet with payload data and payload length len. Builds a packet with payload data and payload length len. The payload type will be set to pt, the marker bit to mark and after building this packet, the timestamp will be incremented with timestamp. This packet will also contain an RTP header extension with identifier hdrextID and data hdrextdata. The length of the header extension data is given by numhdrextwords which expresses the length in a number of 32-bit words.

Definition at line 240 of file rtppacketbuilder.cpp.

References ERR_RTP_PACKBUILD_NOTINIT, init, and PrivateBuildPacket().

{
    if (!init)
        return ERR_RTP_PACKBUILD_NOTINIT;
    return PrivateBuildPacket(data, len, pt, mark, timestampinc, true, hdrextID, hdrextdata, numhdrextwords);

}

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ClearCSRCList()

void qrtplib::RTPPacketBuilder::ClearCSRCList

(

)

Clears the CSRC list.

Definition at line 167 of file rtppacketbuilder.cpp.

References init, and numcsrcs.

{
    if (!init)
        return;
    numcsrcs = 0;
}

CreateNewSSRC() [1/2]

uint32_t qrtplib::RTPPacketBuilder::CreateNewSSRC

(

)

Creates a new SSRC to be used in generated packets. Creates a new SSRC to be used in generated packets. This will also generate new timestamp and sequence number offsets.

Definition at line 174 of file rtppacketbuilder.cpp.

References qrtplib::RTPRandom::GetRandom16(), qrtplib::RTPRandom::GetRandom32(), numpackets, numpayloadbytes, rtprnd, seqnr, ssrc, and timestamp.

Referenced by Init(), and qrtplib::RTPSession::ProcessPolledData().

{
    ssrc = rtprnd.GetRandom32();
    timestamp = rtprnd.GetRandom32();
    seqnr = rtprnd.GetRandom16();

    qDebug("RTPPacketBuilder::CreateNewSSRC: timestamp: %u", timestamp);

    // p 38: the count SHOULD be reset if the sender changes its SSRC identifier
    numpayloadbytes = 0;
    numpackets = 0;
    return ssrc;
}

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CreateNewSSRC() [2/2]

uint32_t qrtplib::RTPPacketBuilder::CreateNewSSRC

(

RTPSources &

sources

)

Creates a new SSRC to be used in generated packets. Creates a new SSRC to be used in generated packets. This will also generate new timestamp and sequence number offsets. The source table sources is used to make sure that the chosen SSRC isn't used by another participant yet.

Definition at line 188 of file rtppacketbuilder.cpp.

References qrtplib::RTPRandom::GetRandom16(), qrtplib::RTPRandom::GetRandom32(), qrtplib::RTPSources::GotEntry(), numpackets, numpayloadbytes, rtprnd, seqnr, ssrc, and timestamp.

{
    bool found;

    do
    {
        ssrc = rtprnd.GetRandom32();
        found = sources.GotEntry(ssrc);
    } while (found);

    timestamp = rtprnd.GetRandom32();
    seqnr = rtprnd.GetRandom16();

    // p 38: the count SHOULD be reset if the sender changes its SSRC identifier
    numpayloadbytes = 0;
    numpackets = 0;
    return ssrc;
}

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DeleteCSRC()

int qrtplib::RTPPacketBuilder::DeleteCSRC

(

uint32_t

csrc

)

Deletes a CSRC from the list which will be stored in the RTP packets.

Definition at line 141 of file rtppacketbuilder.cpp.

References csrcs, ERR_RTP_PACKBUILD_CSRCNOTINLIST, ERR_RTP_PACKBUILD_NOTINIT, i, init, and numcsrcs.

{
    if (!init)
        return ERR_RTP_PACKBUILD_NOTINIT;

    int i = 0;
    bool found = false;

    while (!found && i < numcsrcs)
    {
        if (csrcs[i] == csrc)
            found = true;
        else
            i++;
    }

    if (!found)
        return ERR_RTP_PACKBUILD_CSRCNOTINLIST;

    // move the last csrc in the place of the deleted one
    numcsrcs--;
    if (numcsrcs > 0 && numcsrcs != i)
        csrcs[i] = csrcs[numcsrcs];
    return 0;
}

Destroy()

void qrtplib::RTPPacketBuilder::Destroy

(

)

Cleans up the builder.

Definition at line 100 of file rtppacketbuilder.cpp.

References buffer, and init.

Referenced by qrtplib::RTPSession::BYEDestroy(), qrtplib::RTPSession::Destroy(), qrtplib::RTPSession::InternalCreate(), and ~RTPPacketBuilder().

{
    if (!init)
        return;
    delete[] buffer;
    init = false;
}

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GetPacket()

uint8_t* qrtplib::RTPPacketBuilder::GetPacket ( )

inline

Returns a pointer to the last built RTP packet data.

Definition at line 134 of file rtppacketbuilder.h.

Referenced by qrtplib::RTPSession::SendPacket(), and qrtplib::RTPSession::SendPacketEx().

    {
        if (!init)
            return 0;
        return buffer;
    }

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GetPacketCount()

uint32_t qrtplib::RTPPacketBuilder::GetPacketCount ( )

inline

Returns the number of packets which have been created with the current SSRC identifier.

Definition at line 74 of file rtppacketbuilder.h.

Referenced by qrtplib::RTCPPacketBuilder::BuildBYEPacket(), and qrtplib::RTCPPacketBuilder::BuildNextPacket().

    {
        if (!init)
            return 0;
        return numpackets;
    }

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GetPacketLength()

unsigned int qrtplib::RTPPacketBuilder::GetPacketLength ( )

inline

Returns the size of the last built RTP packet.

Definition at line 142 of file rtppacketbuilder.h.

Referenced by qrtplib::RTPSession::SendPacket(), and qrtplib::RTPSession::SendPacketEx().

    {
        if (!init)
            return 0;
        return packetlength;
    }

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GetPacketTime()

RTPTime qrtplib::RTPPacketBuilder::GetPacketTime ( ) const

inline

Returns the time at which a packet was generated. Returns the time at which a packet was generated. This is not necessarily the time at which the last RTP packet was generated: if the timestamp increment was zero, the time is not updated.

Definition at line 216 of file rtppacketbuilder.h.

Referenced by qrtplib::RTCPPacketBuilder::BuildBYEPacket(), and qrtplib::RTCPPacketBuilder::BuildNextPacket().

    {
        if (!init)
            return RTPTime(0, 0);
        return lastwallclocktime;
    }

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GetPacketTimestamp()

uint32_t qrtplib::RTPPacketBuilder::GetPacketTimestamp ( ) const

inline

Returns the RTP timestamp which corresponds to the time returned by the previous function.

Definition at line 224 of file rtppacketbuilder.h.

Referenced by qrtplib::RTCPPacketBuilder::BuildBYEPacket(), and qrtplib::RTCPPacketBuilder::BuildNextPacket().

    {
        if (!init)
            return 0;
        return lastrtptimestamp;
    }

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GetPayloadOctetCount()

uint32_t qrtplib::RTPPacketBuilder::GetPayloadOctetCount ( )

inline

Returns the number of payload octets which have been generated with this SSRC identifier.

Definition at line 82 of file rtppacketbuilder.h.

Referenced by qrtplib::RTCPPacketBuilder::BuildBYEPacket(), and qrtplib::RTCPPacketBuilder::BuildNextPacket().

    {
        if (!init)
            return 0;
        return numpayloadbytes;
    }

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GetSequenceNumber()

uint16_t qrtplib::RTPPacketBuilder::GetSequenceNumber ( ) const

inline

Returns the current sequence number.

Definition at line 205 of file rtppacketbuilder.h.

Referenced by qrtplib::RTPSession::GetNextSequenceNumber().

    {
        if (!init)
            return 0;
        return seqnr;
    }

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GetSSRC()

uint32_t qrtplib::RTPPacketBuilder::GetSSRC ( ) const

inline

Returns the current SSRC identifier.

Definition at line 189 of file rtppacketbuilder.h.

Referenced by qrtplib::RTCPPacketBuilder::BuildBYEPacket(), qrtplib::RTCPPacketBuilder::BuildNextPacket(), qrtplib::RTPSession::GetLocalSSRC(), qrtplib::RTPSession::InternalCreate(), and qrtplib::RTPSession::SendRTCPAPPPacket().

    {
        if (!init)
            return 0;
        return ssrc;
    }

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GetTimestamp()

uint32_t qrtplib::RTPPacketBuilder::GetTimestamp ( ) const

inline

Returns the current RTP timestamp.

Definition at line 197 of file rtppacketbuilder.h.

    {
        if (!init)
            return 0;
        return timestamp;
    }

IncrementTimestamp()

int qrtplib::RTPPacketBuilder::IncrementTimestamp ( uint32_t  inc )

inline

This function increments the timestamp with the amount given by inc. This function increments the timestamp with the amount given by inc. This can be useful if, for example, a packet was not sent because it contained only silence. Then, this function should be called to increment the timestamp with the appropriate amount so that the next packets will still be played at the correct time at other hosts.

Definition at line 303 of file rtppacketbuilder.h.

References ERR_RTP_PACKBUILD_NOTINIT.

Referenced by qrtplib::RTPSession::IncrementTimestamp().

{
    if (!init)
        return ERR_RTP_PACKBUILD_NOTINIT;
    timestamp += inc;
    return 0;
}

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IncrementTimestampDefault()

int qrtplib::RTPPacketBuilder::IncrementTimestampDefault ( )

inline

This function increments the timestamp with the amount given set by the SetDefaultTimestampIncrement member function. This function increments the timestamp with the amount given set by the SetDefaultTimestampIncrement member function. This can be useful if, for example, a packet was not sent because it contained only silence. Then, this function should be called to increment the timestamp with the appropriate amount so that the next packets will still be played at the correct time at other hosts.

Definition at line 311 of file rtppacketbuilder.h.

References ERR_RTP_PACKBUILD_DEFAULTTSINCNOTSET, and ERR_RTP_PACKBUILD_NOTINIT.

Referenced by qrtplib::RTPSession::IncrementTimestampDefault().

{
    if (!init)
        return ERR_RTP_PACKBUILD_NOTINIT;
    if (!deftsset)
        return ERR_RTP_PACKBUILD_DEFAULTTSINCNOTSET;
    timestamp += defaulttimestampinc;
    return 0;
}

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Init()

int qrtplib::RTPPacketBuilder::Init

(

unsigned int

maxpacksize

)

Initializes the builder to only allow packets with a size below maxpacksize.

Definition at line 76 of file rtppacketbuilder.cpp.

References buffer, CreateNewSSRC(), defmarkset, defptset, deftsset, ERR_RTP_PACKBUILD_ALREADYINIT, ERR_RTP_PACKBUILD_INVALIDMAXPACKETSIZE, init, leansdr::max(), maxpacksize, numcsrcs, numpackets, and packetlength.

Referenced by qrtplib::RTPSession::InternalCreate().

{
    if (init)
        return ERR_RTP_PACKBUILD_ALREADYINIT;
    if (max <= 0)
        return ERR_RTP_PACKBUILD_INVALIDMAXPACKETSIZE;

    maxpacksize = max;
    buffer = new uint8_t[max];
    packetlength = 0;
    numpackets = 0;

    CreateNewSSRC();

    deftsset = false;
    defptset = false;
    defmarkset = false;

    numcsrcs = 0;

    init = true;
    return 0;
}

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PrivateBuildPacket()

int qrtplib::RTPPacketBuilder::PrivateBuildPacket ( const void *  data, unsigned int  len, uint8_t  pt, bool  mark, uint32_t  timestampinc, bool  gotextension, uint16_t  hdrextID = 0, const void *  hdrextdata = 0, unsigned int  numhdrextwords = 0  )

private

Definition at line 248 of file rtppacketbuilder.cpp.

References buffer, csrcs, qrtplib::RTPTime::CurrentTime(), qrtplib::RTPPacket::GetCreationError(), qrtplib::RTPPacket::GetPacketLength(), qrtplib::RTPPacket::GetPayloadLength(), lastrtptimestamp, lastwallclocktime, maxpacksize, numcsrcs, numpackets, numpayloadbytes, packetlength, prevrtptimestamp, seqnr, ssrc, and timestamp.

Referenced by BuildPacket(), and BuildPacketEx().

{
    RTPPacket p(pt, data, len, seqnr, timestamp, ssrc, mark, numcsrcs, csrcs, gotextension, hdrextID, (uint16_t) numhdrextwords, hdrextdata, buffer, maxpacksize);
    int status = p.GetCreationError();

    if (status < 0)
        return status;
    packetlength = p.GetPacketLength();

    if (numpackets == 0) // first packet
    {
        lastwallclocktime = RTPTime::CurrentTime();
        lastrtptimestamp = timestamp;
        prevrtptimestamp = timestamp;
    }
    else if (timestamp != prevrtptimestamp)
    {
        lastwallclocktime = RTPTime::CurrentTime();
        lastrtptimestamp = timestamp;
        prevrtptimestamp = timestamp;
    }

    numpayloadbytes += (uint32_t) p.GetPayloadLength();
    numpackets++;
    timestamp += timestampinc;
    seqnr++;

    //qDebug("RTPPacketBuilder::PrivateBuildPacket: numpackets: %u timestamp: %u timestampinc: %u seqnr: %u", numpackets, timestamp, timestampinc, seqnr);

    return 0;
}

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SetDefaultMark()

int qrtplib::RTPPacketBuilder::SetDefaultMark ( bool  m )

inline

Sets the default marker bit to m.

Definition at line 285 of file rtppacketbuilder.h.

References ERR_RTP_PACKBUILD_NOTINIT.

Referenced by qrtplib::RTPSession::SetDefaultMark().

{
    if (!init)
        return ERR_RTP_PACKBUILD_NOTINIT;
    defmarkset = true;
    defaultmark = m;
    return 0;
}

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SetDefaultPayloadType()

int qrtplib::RTPPacketBuilder::SetDefaultPayloadType ( uint8_t  pt )

inline

Sets the default payload type to pt.

Definition at line 276 of file rtppacketbuilder.h.

References ERR_RTP_PACKBUILD_NOTINIT.

Referenced by qrtplib::RTPSession::SetDefaultPayloadType().

{
    if (!init)
        return ERR_RTP_PACKBUILD_NOTINIT;
    defptset = true;
    defaultpayloadtype = pt;
    return 0;
}

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SetDefaultTimestampIncrement()

int qrtplib::RTPPacketBuilder::SetDefaultTimestampIncrement ( uint32_t  timestampinc )

inline

Sets the default timestamp increment to timestampinc.

Definition at line 294 of file rtppacketbuilder.h.

References ERR_RTP_PACKBUILD_NOTINIT.

Referenced by qrtplib::RTPSession::SetDefaultTimestampIncrement().

{
    if (!init)
        return ERR_RTP_PACKBUILD_NOTINIT;
    deftsset = true;
    defaulttimestampinc = timestampinc;
    return 0;
}

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SetMaximumPacketSize()

int qrtplib::RTPPacketBuilder::SetMaximumPacketSize

(

unsigned int

maxpacksize

)

Sets the maximum allowed packet size to maxpacksize.

Definition at line 108 of file rtppacketbuilder.cpp.

References buffer, ERR_RTP_PACKBUILD_INVALIDMAXPACKETSIZE, leansdr::max(), and maxpacksize.

Referenced by qrtplib::RTPSession::SetMaximumPacketSize().

{
    uint8_t *newbuf;

    if (max <= 0)
        return ERR_RTP_PACKBUILD_INVALIDMAXPACKETSIZE;
    newbuf = new uint8_t[max];

    delete[] buffer;
    buffer = newbuf;
    maxpacksize = max;
    return 0;
}

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Member Data Documentation

buffer

uint8_t* qrtplib::RTPPacketBuilder::buffer

private

Definition at line 251 of file rtppacketbuilder.h.

Referenced by Destroy(), Init(), PrivateBuildPacket(), and SetMaximumPacketSize().

csrcs

uint32_t qrtplib::RTPPacketBuilder::csrcs[RTP_MAXCSRCS]

private

Definition at line 268 of file rtppacketbuilder.h.

Referenced by AddCSRC(), DeleteCSRC(), PrivateBuildPacket(), and RTPPacketBuilder().

defaultmark

bool qrtplib::RTPPacketBuilder::defaultmark

private

Definition at line 264 of file rtppacketbuilder.h.

Referenced by BuildPacket(), BuildPacketEx(), and RTPPacketBuilder().

defaultpayloadtype

uint8_t qrtplib::RTPPacketBuilder::defaultpayloadtype

private

Definition at line 263 of file rtppacketbuilder.h.

Referenced by BuildPacket(), BuildPacketEx(), and RTPPacketBuilder().

defaulttimestampinc

uint32_t qrtplib::RTPPacketBuilder::defaulttimestampinc

private

Definition at line 262 of file rtppacketbuilder.h.

Referenced by BuildPacket(), BuildPacketEx(), and RTPPacketBuilder().

defmarkset

bool qrtplib::RTPPacketBuilder::defmarkset

private

Definition at line 266 of file rtppacketbuilder.h.

Referenced by BuildPacket(), BuildPacketEx(), Init(), and RTPPacketBuilder().

defptset

bool qrtplib::RTPPacketBuilder::defptset

private

Definition at line 266 of file rtppacketbuilder.h.

Referenced by BuildPacket(), BuildPacketEx(), Init(), and RTPPacketBuilder().

deftsset

bool qrtplib::RTPPacketBuilder::deftsset

private

Definition at line 266 of file rtppacketbuilder.h.

Referenced by BuildPacket(), BuildPacketEx(), Init(), and RTPPacketBuilder().

init

bool qrtplib::RTPPacketBuilder::init

private

Definition at line 256 of file rtppacketbuilder.h.

Referenced by AddCSRC(), BuildPacket(), BuildPacketEx(), ClearCSRCList(), DeleteCSRC(), Destroy(), Init(), and RTPPacketBuilder().

lastrtptimestamp

uint32_t qrtplib::RTPPacketBuilder::lastrtptimestamp

private

Definition at line 272 of file rtppacketbuilder.h.

Referenced by PrivateBuildPacket(), and RTPPacketBuilder().

lastwallclocktime

RTPTime qrtplib::RTPPacketBuilder::lastwallclocktime

private

Definition at line 271 of file rtppacketbuilder.h.

Referenced by PrivateBuildPacket().

maxpacksize

unsigned int qrtplib::RTPPacketBuilder::maxpacksize

private

Definition at line 250 of file rtppacketbuilder.h.

Referenced by Init(), PrivateBuildPacket(), and SetMaximumPacketSize().

numcsrcs

int qrtplib::RTPPacketBuilder::numcsrcs

private

Definition at line 269 of file rtppacketbuilder.h.

Referenced by AddCSRC(), ClearCSRCList(), DeleteCSRC(), Init(), PrivateBuildPacket(), and RTPPacketBuilder().

numpackets

uint32_t qrtplib::RTPPacketBuilder::numpackets

private

Definition at line 255 of file rtppacketbuilder.h.

Referenced by CreateNewSSRC(), Init(), PrivateBuildPacket(), and RTPPacketBuilder().

numpayloadbytes

uint32_t qrtplib::RTPPacketBuilder::numpayloadbytes

private

Definition at line 254 of file rtppacketbuilder.h.

Referenced by CreateNewSSRC(), PrivateBuildPacket(), and RTPPacketBuilder().

packetlength

unsigned int qrtplib::RTPPacketBuilder::packetlength

private

Definition at line 252 of file rtppacketbuilder.h.

Referenced by Init(), and PrivateBuildPacket().

prevrtptimestamp

uint32_t qrtplib::RTPPacketBuilder::prevrtptimestamp

private

Definition at line 273 of file rtppacketbuilder.h.

Referenced by PrivateBuildPacket(), and RTPPacketBuilder().

rtprnd

RTPRandom& qrtplib::RTPPacketBuilder::rtprnd

private

Definition at line 249 of file rtppacketbuilder.h.

Referenced by CreateNewSSRC().

seqnr

uint16_t qrtplib::RTPPacketBuilder::seqnr

private

Definition at line 260 of file rtppacketbuilder.h.

Referenced by CreateNewSSRC(), PrivateBuildPacket(), and RTPPacketBuilder().

ssrc

uint32_t qrtplib::RTPPacketBuilder::ssrc

private

Definition at line 258 of file rtppacketbuilder.h.

Referenced by CreateNewSSRC(), PrivateBuildPacket(), and RTPPacketBuilder().

timestamp

uint32_t qrtplib::RTPPacketBuilder::timestamp

private

Definition at line 259 of file rtppacketbuilder.h.

Referenced by CreateNewSSRC(), PrivateBuildPacket(), and RTPPacketBuilder().

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

• qrtplib/rtppacketbuilder.h
• qrtplib/rtppacketbuilder.cpp