voice Class Reference

#include <App_voice.h>

Inheritance diagram for voice:

List of all members.

Public Member Functions
	voice ()
virtual bool	loadConfig (const cXMLElement &appConfig)
virtual int	getDefaultPort ()
virtual double	getNextPacketTime ()
virtual int	getPacketSize ()
virtual int	anotherEncapsulationOverhead ()
Private Attributes
double	pps
int	codecRate
bool	vad

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Detailed Description

Definition at line 26 of file App_voice.h.

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Constructor & Destructor Documentation

voice::voice

(

)

[inline]

Definition at line 34 of file App_voice.h.

{pps = 0.0; codecRate = 0; vad = false;}

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Member Function Documentation

int voice::anotherEncapsulationOverhead

(

)

[virtual]

Implements ITrafGenApplication.

Definition at line 91 of file App_voice.cc.

{
  return 12;  // rtp hlavicka
}

int voice::getDefaultPort

(

)

[virtual]

Implements ITrafGenApplication.

Definition at line 80 of file App_voice.cc.

{
  return 16384;
}

double voice::getNextPacketTime

(

)

[virtual]

Implements ITrafGenApplication.

Definition at line 102 of file App_voice.cc.

{
  if(vad)
  { // VAD sposobi, ze je generovanych len 70% paketov 
    double time = 1.0/pps;
    while(intuniform(0, 10) > 7)
      time += 1.0/pps;
    
    return time;
  }
  return 1.0/pps; 
}

int voice::getPacketSize

(

)

[virtual]

Implements ITrafGenApplication.

Definition at line 121 of file App_voice.cc.

{
  return  codecRate/(8 * pps);
}

bool voice::loadConfig

(

const cXMLElement &

appConfig

)

[virtual]

Implements ITrafGenApplication.

Definition at line 32 of file App_voice.cc.

{
  
  cXMLElement* element;

  element = appConfig.getFirstChildWithTag("codec");
  if(element != NULL)
  {// pouzity kodek
    std::string codec = element->getNodeValue();
    if(codec == "g711" || codec == "G.711")
      codecRate = 64000;
    else if(codec == "g729" || codec == "G.729")
      codecRate = 8000;
  }
  
  element = appConfig.getFirstChildWithTag("codec_rate");
  if(element != NULL) // explicitne definavana bitova rychlost
    codecRate =  atoi(element->getNodeValue());
    
  element = appConfig.getFirstChildWithTag("packets_per_second");
  if(element != NULL)
  {
    std::string ppsString = element->getNodeValue();
    if(ppsString == "default")
      pps = 50.0;
    else
      pps = atof(element->getNodeValue());
  }
    
  element = appConfig.getFirstChildWithTag("vad");
  if(element != NULL)
  { // technologia VAD bude pouzita
    std::string vadString = element->getNodeValue();
    if(vadString == "true" || vadString == "True" || vadString == "TRUE")
      vad = true;
  }
  
  if(pps == 0.0 || codecRate == 0)
    return false; // chyba nacitania
  
  return true;
}

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Member Data Documentation

int voice::codecRate [private]

Definition at line 30 of file App_voice.h.

Referenced by getPacketSize(), and loadConfig().

double voice::pps [private]

Definition at line 29 of file App_voice.h.

Referenced by getNextPacketTime(), getPacketSize(), and loadConfig().

bool voice::vad [private]

Definition at line 31 of file App_voice.h.

Referenced by getNextPacketTime(), and loadConfig().

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

• App_voice.h
• App_voice.cc