Abstract Layer Description. More...

#include <abstractlayerdescription.h>

Inheritance diagram for AbstractLayerDescription:

Public Types
enum	LayerFlags { LF_BaseLayer = 0, LF_ExtensionLayer = (1 << 0) }
Public Member Functions
	AbstractLayerDescription ()
virtual	~AbstractLayerDescription ()
void	initLayer (const cardinal pktHeaderSize, const cardinal pktMaxSize, const double maxTransferDelay, const cardinal maxBufferDelay, const double maxLossRate, const double maxJitter, const cardinal flags)
card64	getBandwidth () const
bool	setBandwidth (const double frameRate, const card64 bandwidth)
virtual cardinal	getPacketRate (const double frameRate) const
card64	bandwidthToBandwidth (const card64 bandwidth, const double frameRate, const cardinal bufferDelay, const cardinal newBufferDelay) const
card64	payloadBandwidthToBandwidth (const card64 bandwidth, const double frameRate, const cardinal bufferDelay, const cardinal newBufferDelay) const
virtual cardinal	frameSizeToPacketRate (const double frameRate, const cardinal frameSize) const
double	getMaxTransferDelay () const
void	setMaxTransferDelay (const double maxDelay)
double	getMaxLossRate () const
void	setMaxLossRate (const double maxLossRate)
double	getMaxJitter () const
void	setMaxJitter (const double maxJitter)
bool	isValidFrameSize (const double frameRate, const cardinal bufferDelay, const cardinal size) const
cardinal	getNearestValidFrameSize (const double frameRate, const cardinal bufferDelay, const cardinal size) const
virtual cardinal	payloadToRaw (const double frameRate, const cardinal payload, const cardinal bufferDelay) const
virtual cardinal	rawToPayload (const double frameRate, const cardinal raw, const cardinal bufferDelay) const
cardinal	getMinFrameSize (const double frameRate) const
cardinal	getMaxFrameSize (const double frameRate) const
cardinal	getPeakFrameSizeForSize (const double frameRate, const cardinal frameSize) const
cardinal	getPacketCountForSize (const double frameRate, const cardinal frameSize) const
double	getPrevFrameSizeForSize (const double frameRate, const cardinal frameSize) const
double	getNextFrameSizeForSize (const double frameRate, const cardinal frameSize) const
double	getFrameSizeScaleFactorForSize (const double frameRate, const cardinal frameSize) const
double	getFrameSizeUtilizationForSize (const double frameRate, const cardinal frameSize) const
cardinal	getMinFrameSizeForDelay (const double frameRate, const cardinal bufferDelay) const
cardinal	getMaxFrameSizeForDelay (const double frameRate, const cardinal bufferDelay) const
cardinal	getPeakFrameSizeForDelayAndSize (const double frameRate, const cardinal bufferDelay, const cardinal frameSize) const
cardinal	getPacketCountForDelayAndSize (const double frameRate, const cardinal bufferDelay, const cardinal frameSize) const
double	getPrevFrameSizeForDelayAndSize (const double frameRate, const cardinal bufferDelay, const cardinal frameSize) const
double	getNextFrameSizeForDelayAndSize (const double frameRate, const cardinal bufferDelay, const cardinal frameSize) const
double	getFrameSizeScaleFactorForDelayAndSize (const double frameRate, const cardinal bufferDelay, const cardinal frameSize) const
double	getFrameSizeUtilizationForDelayAndSize (const double frameRate, const cardinal bufferDelay, const cardinal frameSize) const
cardinal	getBufferDelay () const
cardinal	setBufferDelay (const cardinal bufferDelay)
cardinal	getPrevBufferDelay (const double frameRate) const
cardinal	getNextBufferDelay (const double frameRate) const
InternetAddress	getSource () const
InternetFlow	getDestination () const
void	setSource (const InternetAddress &source)
void	setDestination (const InternetFlow &destination)
cardinal	getFlags () const
void	setFlags (const cardinal flags)
Static Public Member Functions
static card64	frameSizeToBandwidth (const double frameRate, const cardinal frameSize)
static cardinal	bandwidthToFrameSize (const double frameRate, const card64 bandwidth)
Protected Attributes
cardinal	PktHeaderSize
cardinal	PktMaxSize
card64	Bandwidth
double	MaxTransferDelay
double	MaxLossRate
double	MaxJitter
cardinal	BufferDelay
cardinal	MaxBufferDelay
cardinal	Flags
InternetAddress	Source
InternetFlow	Destination

Detailed Description

Abstract Layer Description.

This class contains a layer's QoS requirements. Important node: All frames sizes in this class are *raw* frame sizes, the frames sizes in FrameSizeScalability are payload frame sizes. This class does necessary translation.

Author:: Thomas Dreibholz

Version:: 1.0

Member Enumeration Documentation

enum AbstractLayerDescription::LayerFlags

Layer flags.

Enumerator:

LF_BaseLayer
LF_ExtensionLayer

Constructor & Destructor Documentation

AbstractLayerDescription::AbstractLayerDescription ( )

Constructor.

AbstractLayerDescription::~AbstractLayerDescription ( ) [virtual]

Destructor.

Member Function Documentation

card64 AbstractLayerDescription::bandwidthToBandwidth	(	const card64	bandwidth,
		const double	frameRate,
		const cardinal	bufferDelay,
		const cardinal	newBufferDelay
	)		const `[inline]`

Translate bandwidth into bandwidth using different buffer delay.

Parameters:

bandwidth	Input bandwidth.
frameRate	Input frame rate.
bufferDelay	Input buffer delay.
newBufferDelay	Output buffer delay.

Returns:: Output bandwidth.

static cardinal AbstractLayerDescription::bandwidthToFrameSize	(	const double	frameRate,
		const card64	bandwidth
	)		`[inline, static]`

Translate bandwidth into frame size.

Parameters:

frameRate	Frame rate.
bandwidth	Bandwidth.

Returns:: Frame size.

static card64 AbstractLayerDescription::frameSizeToBandwidth	(	const double	frameRate,
		const cardinal	frameSize
	)		`[inline, static]`

Translate frame size into bandwidth.

Parameters:

frameRate	Frame rate.
frameSize	Frame size.

Returns:: Bandwidth.

cardinal AbstractLayerDescription::frameSizeToPacketRate	(	const double	frameRate,
		const cardinal	frameSize
	)		const `[virtual]`

Get packets per second for given frame size.

Parameters:

frameRate	Frame rate.
frameSize	Frame size.

Returns:: Packets per second.

card64 AbstractLayerDescription::getBandwidth ( ) const [inline]

Get bandwidth.

Returns:: Bandwidth.

cardinal AbstractLayerDescription::getBufferDelay ( ) const [inline]

Get buffer delay.

Returns:: Buffer delay in frame rate units.

InternetFlow AbstractLayerDescription::getDestination ( ) const [inline]

Get destination address.

Returns:: Destination address.

cardinal AbstractLayerDescription::getFlags ( ) const [inline]

Get flags.

double AbstractLayerDescription::getFrameSizeScaleFactorForDelayAndSize	(	const double	frameRate,
		const cardinal	bufferDelay,
		const cardinal	frameSize
	)		const `[inline]`

Get frame size scale factor for given frame rate, size and buffer delay. (size - MinFrameSize) / (MaxFrameSize - MinFrameSize).

Parameters:

frameRate	Frame rate.
frameSize	Frame size.

Returns:: Scale factor (out of [0,1]).

double AbstractLayerDescription::getFrameSizeScaleFactorForSize	(	const double	frameRate,
		const cardinal	frameSize
	)		const `[inline]`

Get frame size scale factor for given frame rate and size: (size - MinFrameSize) / (MaxFrameSize - MinFrameSize).

Parameters:

frameRate	Frame rate and size.
frameSize	Frame size.

Returns:: Scale factor (out of [0,1]).

double AbstractLayerDescription::getFrameSizeUtilizationForDelayAndSize	(	const double	frameRate,
		const cardinal	bufferDelay,
		const cardinal	frameSize
	)		const `[inline]`

Get frame size utilization for given frame rate, size and buffer delay.

Parameters:

frameRate	Frame rate.
frameSize	Frame size.

Returns:: Utilization (out of [0,1]).

double AbstractLayerDescription::getFrameSizeUtilizationForSize	(	const double	frameRate,
		const cardinal	frameSize
	)		const `[inline]`

Get frame size utilization for given frame rate and size.

Parameters:

frameRate	Frame rate and size.
frameSize	Frame size.

Returns:: Utilization (out of [0,1]).

cardinal AbstractLayerDescription::getMaxFrameSize ( const double frameRate ) const [inline]

Get maximum frame size for given frame rate.

Parameters:

frameRate Frame rate.

Returns:: Maximum frame size.

cardinal AbstractLayerDescription::getMaxFrameSizeForDelay	(	const double	frameRate,
		const cardinal	bufferDelay
	)		const `[inline]`

Get maximum frame size for given frame rate and buffer delay.

Parameters:

frameRate Frame rate.

Returns:: Maximum frame size.

double AbstractLayerDescription::getMaxJitter ( ) const [inline]

Get maximum jitter.

Returns:: Maximum jitter in microseconds.

double AbstractLayerDescription::getMaxLossRate ( ) const [inline]

Get maximum loss rate.

Returns:: Maximum loss rate (out of [0,1]).

double AbstractLayerDescription::getMaxTransferDelay ( ) const [inline]

Get maximum transfer delay.

Returns:: Maximum transfer delay in microseconds.

cardinal AbstractLayerDescription::getMinFrameSize ( const double frameRate ) const [inline]

Get minimum frame size for given frame rate.

Parameters:

frameRate Frame rate.

Returns:: Minimum frame size.

cardinal AbstractLayerDescription::getMinFrameSizeForDelay	(	const double	frameRate,
		const cardinal	bufferDelay
	)		const `[inline]`

Get minimum frame size for given frame rate and buffer delay.

Parameters:

frameRate Frame rate.

Returns:: Minimum frame size.

cardinal AbstractLayerDescription::getNearestValidFrameSize	(	const double	frameRate,
		const cardinal	bufferDelay,
		const cardinal	size
	)		const `[inline]`

Get nearest lower frame size for given frame rate and buffer delay.

Parameters:

frameRate	Frame rate.
bufferDelay	Buffer delay.
size	FrameSize.

Returns:: Nearest lower frame size.

cardinal AbstractLayerDescription::getNextBufferDelay ( const double frameRate ) const [inline]

Get next higher buffer delay.

Parameters:

frameRate Frame rate.

Returns:: Buffer delay in frame rate units.

double AbstractLayerDescription::getNextFrameSizeForDelayAndSize	(	const double	frameRate,
		const cardinal	bufferDelay,
		const cardinal	frameSize
	)		const `[inline]`

Get next higher frame size for given frame rate, size and buffer delay.

Parameters:

frameRate	Frame rate.
frameSize	Frame size.

Returns:: Next higher frame size.

double AbstractLayerDescription::getNextFrameSizeForSize	(	const double	frameRate,
		const cardinal	frameSize
	)		const `[inline]`

Get next higher frame size for given frame rate and size.

Parameters:

frameRate	Frame rate and size.
frameSize	Frame size.

Returns:: Next higher frame size.

cardinal AbstractLayerDescription::getPacketCountForDelayAndSize	(	const double	frameRate,
		const cardinal	bufferDelay,
		const cardinal	frameSize
	)		const `[inline]`

Get number of packets (upper limit) for given frame rate, size and buffer delay.

Parameters:

frameRate Frame rate.

Returns:: Number of packets.

cardinal AbstractLayerDescription::getPacketCountForSize	(	const double	frameRate,
		const cardinal	frameSize
	)		const `[inline]`

Get number of packets (upper limit) for given frame rate and size.

Parameters:

frameRate Frame rate.

Returns:: Number of packets.

cardinal AbstractLayerDescription::getPacketRate ( const double frameRate ) const [virtual]

Get packet rate.

Parameters:

frameRate Frame rate.

Returns:: Bandwidth limit.

cardinal AbstractLayerDescription::getPeakFrameSizeForDelayAndSize	(	const double	frameRate,
		const cardinal	bufferDelay,
		const cardinal	frameSize
	)		const `[inline]`

Get peak frame size for given frame rate, size and buffer delay.

Parameters:

frameRate Frame rate.

Returns:: Peak frame size.

cardinal AbstractLayerDescription::getPeakFrameSizeForSize	(	const double	frameRate,
		const cardinal	frameSize
	)		const `[inline]`

Get peak frame size for given frame rate and size.

Parameters:

frameRate Frame rate.

Returns:: Peak frame size.

cardinal AbstractLayerDescription::getPrevBufferDelay ( const double frameRate ) const [inline]

Get next lower buffer delay.

Parameters:

frameRate Frame rate.

Returns:: Buffer delay in frame rate units.

double AbstractLayerDescription::getPrevFrameSizeForDelayAndSize	(	const double	frameRate,
		const cardinal	bufferDelay,
		const cardinal	frameSize
	)		const `[inline]`

Get next lower frame size for given frame rate, size and buffer delay.

Parameters:

frameRate	Frame rate.
frameSize	Frame size.

Returns:: Next lower frame size.

double AbstractLayerDescription::getPrevFrameSizeForSize	(	const double	frameRate,
		const cardinal	frameSize
	)		const `[inline]`

Get next lower frame size for given frame rate and size and size.

Parameters:

frameRate	Frame rate.
frameSize	Frame size.

Returns:: Next lower frame size.

InternetAddress AbstractLayerDescription::getSource ( ) const [inline]

Get source address.

Returns:: Source address.

void AbstractLayerDescription::initLayer	(	const cardinal	pktHeaderSize,
		const cardinal	pktMaxSize,
		const double	maxTransferDelay,
		const cardinal	maxBufferDelay,
		const double	maxLossRate,
		const double	maxJitter,
		const cardinal	flags
	)		`[inline]`

Initialize layer description.

Parameters:

pktHeaderSize	Packet header size, e.g. 40 + 8 + 12 (IPv6 + UDP + RTP).
pktMaxSize	Maximum packet size, e.g. 1500.
maxTransferDelay	Maximum transfer delay in microseconds.
maxBufferDelay	Maximum buffer delay in frame rate units.
maxLossRate	Maximum loss rate (out of [0,1]).
maxJitter	Maximum jitter in microseconds.

bool AbstractLayerDescription::isValidFrameSize	(	const double	frameRate,
		const cardinal	bufferDelay,
		const cardinal	size
	)		const `[inline]`

Check, if given frame size is valid for given frame rate and buffer delay.

Parameters:

frameRate	Frame rate.
bufferDelay	Buffer delay.
size	FrameSize.

Returns:: true, if frame size is valid; false otherwise.

card64 AbstractLayerDescription::payloadBandwidthToBandwidth	(	const card64	bandwidth,
		const double	frameRate,
		const cardinal	bufferDelay,
		const cardinal	newBufferDelay
	)		const

Translate *payload* bandwidth into bandwidth using different buffer delay.

Parameters:

bandwidth	Input payload bandwidth.
frameRate	Input frame rate.
bufferDelay	Input buffer delay.
newBufferDelay	Output buffer delay.

Returns:: Output payload bandwidth.

cardinal AbstractLayerDescription::payloadToRaw	(	const double	frameRate,
		const cardinal	payload,
		const cardinal	bufferDelay
	)		const `[virtual]`

Translate payload frame size into raw frame size.

Parameters:

frameRate	Frame rate.
payload	Payload frame size.
bufferDelay	Buffer delay.

Returns:: Raw frame size.

cardinal AbstractLayerDescription::rawToPayload	(	const double	frameRate,
		const cardinal	raw,
		const cardinal	bufferDelay
	)		const `[virtual]`

Translate raw frame size into payload frame size.

Parameters:

frameRate	Frame rate.
raw	Raw frame size.
bufferDelay	Buffer delay.

Returns:: Payload frame size.

bool AbstractLayerDescription::setBandwidth	(	const double	frameRate,
		const card64	bandwidth
	)		`[inline]`

Set bandwidth.

Parameters:

frameRate	Frame rate.
bandwidth	Bandwidth.

Returns:: true, if bandwidth is sufficient for minimum requirement.

cardinal AbstractLayerDescription::setBufferDelay ( const cardinal bufferDelay )

Set buffer delay.

Parameters:

bufferDelay Buffer delay in frame rate units.

Returns:: Buffer delay set in frame rate units.

void AbstractLayerDescription::setDestination ( const InternetFlow & destination ) [inline]

Set destination address.

Parameters:

destination Destination address

void AbstractLayerDescription::setFlags ( const cardinal flags ) [inline]

Set flags.

void AbstractLayerDescription::setMaxJitter ( const double maxJitter ) [inline]

Get maximum jitter.

Parameters:

maxJitter Maximum jitter in microseconds.

void AbstractLayerDescription::setMaxLossRate ( const double maxLossRate ) [inline]

Set maximum loss rate.

Parameters:

maxLossRate Maximum loss rate (out of [0,1]).

void AbstractLayerDescription::setMaxTransferDelay ( const double maxDelay ) [inline]

Set maximum transfer delay.

Parameters:

maxDelay Maximum transfer delay in microseconds.

void AbstractLayerDescription::setSource ( const InternetAddress & source ) [inline]

Set source address.

Parameters:

source Source address.

Member Data Documentation

card64 AbstractLayerDescription::Bandwidth [protected]

cardinal AbstractLayerDescription::BufferDelay [protected]

InternetFlow AbstractLayerDescription::Destination [protected]

cardinal AbstractLayerDescription::Flags [protected]

cardinal AbstractLayerDescription::MaxBufferDelay [protected]

double AbstractLayerDescription::MaxJitter [protected]

double AbstractLayerDescription::MaxLossRate [protected]

double AbstractLayerDescription::MaxTransferDelay [protected]

cardinal AbstractLayerDescription::PktHeaderSize [protected]

cardinal AbstractLayerDescription::PktMaxSize [protected]

InternetAddress AbstractLayerDescription::Source [protected]

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

Public Types

Public Member Functions

Static Public Member Functions

Protected Attributes

Detailed Description

Member Enumeration Documentation

Constructor & Destructor Documentation

Member Function Documentation

Member Data Documentation