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jamulus/src/util.h

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/******************************************************************************\
* Copyright (c) 2004-2020
*
* Author(s):
* Volker Fischer
*
******************************************************************************
*
* This program is free software; you can redistribute it and/or modify it under
* the terms of the GNU General Public License as published by the Free Software
* Foundation; either version 2 of the License, or (at your option) any later
* version.
*
* This program is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
* FOR A PARTICULAR PURPOSE. See the GNU General Public License for more
* details.
*
* You should have received a copy of the GNU General Public License along with
* this program; if not, write to the Free Software Foundation, Inc.,
* 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*
\******************************************************************************/
#pragma once
#include <QTcpSocket>
#include <QHostAddress>
#include <QHostInfo>
#include <QMenu>
#include <QWhatsThis>
#include <QTextBrowser>
#include <QLabel>
#include <QCheckBox>
#include <QComboBox>
#include <QLineEdit>
#include <QDateTime>
#include <QFile>
#include <QDesktopServices>
#include <QUrl>
#include <QLocale>
#if QT_VERSION >= QT_VERSION_CHECK(4, 7, 0)
# include <QElapsedTimer>
#endif
#include <vector>
#include <algorithm>
#include "global.h"
using namespace std; // because of the library: "vector"
#ifdef _WIN32
# include <winsock2.h>
# include <ws2ipdef.h>
# include <windows.h>
# include <mmsystem.h>
#elif defined ( __APPLE__ ) || defined ( __MACOSX )
# include <mach/mach.h>
# include <mach/mach_error.h>
# include <mach/mach_time.h>
#else
# include <sys/time.h>
#endif
#include "ui_aboutdlgbase.h"
class CClient; // forward declaration of CClient
/* Definitions ****************************************************************/
#define METER_FLY_BACK 2
#define INVALID_MIDI_CH -1 // invalid MIDI channel definition
/* Global functions ***********************************************************/
// converting double to short
inline short Double2Short ( const double dInput )
{
// lower bound
if ( dInput < _MINSHORT )
{
return _MINSHORT;
}
// upper bound
if ( dInput > _MAXSHORT )
{
return _MAXSHORT;
}
return static_cast<short> ( dInput );
}
// debug error handling
void DebugError ( const QString& pchErDescr,
const QString& pchPar1Descr,
const double dPar1,
const QString& pchPar2Descr,
const double dPar2 );
// calculate the bit rate in bits per second from the number of coded bytes
inline int CalcBitRateBitsPerSecFromCodedBytes ( const int iCeltNumCodedBytes,
const int iFrameSize )
{
return ( SYSTEM_SAMPLE_RATE_HZ * iCeltNumCodedBytes * 8 ) / iFrameSize;
}
/******************************************************************************\
* CVector Base Class *
\******************************************************************************/
template<class TData> class CVector : public std::vector<TData>
{
public:
CVector() {}
CVector ( const int iNeSi ) { Init ( iNeSi ); }
CVector ( const int iNeSi,
const TData tInVa ) { Init ( iNeSi, tInVa ); }
CVector ( CVector const& ) = default;
void Init ( const int iNewSize );
// use this init to give all elements a defined value
void Init ( const int iNewSize,
const TData tIniVal );
// set all values to the given reset value
void Reset ( const TData tResetVal )
{
std::fill ( this->begin(), this->end(), tResetVal );
}
void Enlarge ( const int iAddedSize )
{
std::vector<TData>::resize ( std::vector<TData>::size() + iAddedSize );
}
void Add ( const TData& tI )
{
Enlarge ( 1 );
std::vector<TData>::back() = tI;
}
int StringFiFoWithCompare ( const QString strNewValue,
const bool bDoAdding = true );
// this function simply converts the type of size to integer
inline int Size() const { return static_cast<int> ( std::vector<TData>::size() ); }
// This operator allows for a l-value assignment of this object:
// CVector[x] = y is possible
inline TData& operator[] ( const int iPos )
{
#ifdef _DEBUG_
if ( ( iPos < 0 ) || ( iPos > Size() - 1 ) )
{
DebugError ( "Writing vector out of bounds", "Vector size",
Size(), "New parameter", iPos );
}
#endif
return std::vector<TData>::operator[] ( iPos );
}
inline TData operator[] ( const int iPos ) const
{
#ifdef _DEBUG_
if ( ( iPos < 0 ) || ( iPos > Size() - 1 ) )
{
DebugError ( "Reading vector out of bounds", "Vector size",
Size(), "New parameter", iPos );
}
#endif
return std::vector<TData>::operator[] ( iPos );
}
inline CVector<TData>& operator= ( const CVector<TData>& vecI )
{
#ifdef _DEBUG_
// vectors which shall be copied MUST have same size!
if ( vecI.Size() != Size() )
{
DebugError ( "Vector operator=() different size", "Vector size",
Size(), "New parameter", vecI.Size() );
}
#endif
std::vector<TData>::operator= ( vecI );
return *this;
}
};
/* Implementation *************************************************************/
template<class TData> void CVector<TData>::Init ( const int iNewSize )
{
// clear old buffer and reserve memory for new buffer
std::vector<TData>::clear();
std::vector<TData>::resize ( iNewSize );
}
template<class TData> void CVector<TData>::Init ( const int iNewSize,
const TData tIniVal )
{
// call actual init routine and reset all values to the given value
Init ( iNewSize );
Reset ( tIniVal );
}
// note: this is only supported for string vectors
template<class TData> int CVector<TData>::StringFiFoWithCompare ( const QString strNewValue,
const bool bDoAdding )
{
const int iVectorSize = Size();
CVector<QString> vstrTempList ( iVectorSize, "" );
// init with illegal index per definition
int iOldIndex = -1;
// init temporary list count (may be overwritten later on)
int iTempListCnt = 0;
if ( bDoAdding )
{
// store the new element in the current storage list at
// the top, make sure we do not have more than allowed stored
// elements
vstrTempList[0] = strNewValue;
iTempListCnt = 1;
}
for ( int iIdx = 0; iIdx < iVectorSize; iIdx++ )
{
// first check if we still have space in our data storage
if ( iTempListCnt < iVectorSize )
{
// only add old element if it is not the same as the
// selected one
if ( operator[] ( iIdx ).compare ( strNewValue ) )
{
vstrTempList[iTempListCnt] = operator[] ( iIdx );
iTempListCnt++;
}
else
{
iOldIndex = iIdx;
}
}
}
// copy new generated list to data base
*this = vstrTempList;
return iOldIndex;
}
/******************************************************************************\
* CFIFO Class (First In, First Out) *
\******************************************************************************/
template<class TData> class CFIFO : public CVector<TData>
{
public:
CFIFO() : iCurIdx ( 0 ) {}
CFIFO ( const int iNeSi ) : CVector<TData> ( iNeSi ), iCurIdx ( 0 ) {}
CFIFO ( const int iNeSi, const TData tInVa ) :
CVector<TData> ( iNeSi, tInVa ), iCurIdx ( 0 ) {}
void Add ( const TData tNewD );
inline TData Get() { return CVector<TData>::operator[] ( iCurIdx ); }
virtual void Init ( const int iNewSize );
virtual void Init ( const int iNewSize,
const TData tIniVal );
protected:
int iCurIdx;
};
template<class TData> void CFIFO<TData>::Init ( const int iNewSize )
{
iCurIdx = 0;
CVector<TData>::Init ( iNewSize );
}
template<class TData> void CFIFO<TData>::Init ( const int iNewSize,
const TData tIniVal )
{
iCurIdx = 0;
CVector<TData>::Init ( iNewSize, tIniVal );
}
template<class TData> void CFIFO<TData>::Add ( const TData tNewD )
{
CVector<TData>::operator[] ( iCurIdx ) = tNewD;
// increment index and check for wrap around
iCurIdx++;
if ( iCurIdx >= CVector<TData>::Size() )
{
iCurIdx = 0;
}
}
/******************************************************************************\
* CMovingAv Class (Moving Average) *
\******************************************************************************/
template<class TData> class CMovingAv : public CVector<TData>
{
public:
CMovingAv() :
CVector<TData>(),
iCurIdx ( 0 ),
iNorm ( 0 ),
dCurAvResult ( 0 ),
dNoDataResult ( 0 ) {}
void Add ( const TData tNewD );
void Init ( const int iNewSize,
const double dNNoDRes = 0 );
void Reset();
inline double GetAverage()
{
// make sure we do not divide by zero
if ( iNorm == 0 )
{
return dNoDataResult;
}
else
{
return dCurAvResult / iNorm;
}
}
double InitializationState() const
{
// make sure we do not divide by zero
if ( CVector<TData>::Size() != 0 )
{
return static_cast<double> ( iNorm ) / CVector<TData>::Size();
}
else
{
return 0;
}
}
protected:
int iCurIdx;
int iNorm;
double dCurAvResult;
double dNoDataResult;
};
template<class TData> void CMovingAv<TData>::Init ( const int iNewSize,
const double dNNoDRes )
{
iNorm = 0;
iCurIdx = 0;
dCurAvResult = 0; // only for scalars!
dNoDataResult = dNNoDRes;
CVector<TData>::Init ( iNewSize );
}
template<class TData> void CMovingAv<TData>::Reset()
{
iNorm = 0;
iCurIdx = 0;
dCurAvResult = 0; // only for scalars!
CVector<TData>::Reset ( TData ( 0 ) );
}
template<class TData> void CMovingAv<TData>::Add ( const TData tNewD )
{
/*
Optimized calculation of the moving average. We only add a new value and
subtract the old value from the result. We only need one addition and a
history buffer.
*/
// subtract oldest value
dCurAvResult -= CVector<TData>::operator[] ( iCurIdx );
// add new value and write in memory
dCurAvResult += tNewD;
CVector<TData>::operator[] ( iCurIdx ) = tNewD;
// increase position pointer and test if wrap
iCurIdx++;
if ( iCurIdx >= CVector<TData>::Size() )
{
iCurIdx = 0;
}
// take care of norm
if ( iNorm < CVector<TData>::Size() )
{
iNorm++;
}
}
/******************************************************************************\
* GUI Utilities *
\******************************************************************************/
// About dialog ----------------------------------------------------------------
class CAboutDlg : public QDialog, private Ui_CAboutDlgBase
{
Q_OBJECT
public:
CAboutDlg ( QWidget* parent = nullptr );
static QString GetVersionAndNameStr ( const bool bWithHtml = true );
};
// Licence dialog --------------------------------------------------------------
class CLicenceDlg : public QDialog
{
Q_OBJECT
public:
CLicenceDlg ( QWidget* parent = nullptr );
protected:
QPushButton* butAccept;
public slots:
void OnAgreeStateChanged ( int value ) { butAccept->setEnabled ( value == Qt::Checked ); }
};
// Musician profile dialog -----------------------------------------------------
class CMusProfDlg : public QDialog
{
Q_OBJECT
public:
CMusProfDlg ( CClient* pNCliP,
QWidget* parent = nullptr );
protected:
virtual void showEvent ( QShowEvent* );
QLineEdit* pedtAlias;
QComboBox* pcbxInstrument;
QComboBox* pcbxCountry;
QLineEdit* pedtCity;
QComboBox* pcbxSkill;
CClient* pClient;
public slots:
void OnAliasTextChanged ( const QString& strNewName );
void OnInstrumentActivated ( int iCntryListItem );
void OnCountryActivated ( int iCntryListItem );
void OnCityTextChanged ( const QString& strNewName );
void OnSkillActivated ( int iCntryListItem );
};
// Help menu -------------------------------------------------------------------
class CHelpMenu : public QMenu
{
Q_OBJECT
public:
CHelpMenu ( QWidget* parent = nullptr );
protected:
CAboutDlg AboutDlg;
public slots:
void OnHelpWhatsThis() { QWhatsThis::enterWhatsThisMode(); }
void OnHelpAbout() { AboutDlg.exec(); }
void OnHelpDownloadLink()
{ QDesktopServices::openUrl ( QUrl ( LLCON_DOWNLOAD_URL ) ); }
};
// Console writer factory ------------------------------------------------------
// this class was written by pljones
class ConsoleWriterFactory
{
public:
ConsoleWriterFactory() : ptsConsole ( nullptr ) { }
QTextStream* get();
private:
QTextStream* ptsConsole;
};
/******************************************************************************\
* Other Classes/Enums *
\******************************************************************************/
// Audio channel configuration -------------------------------------------------
enum EAudChanConf
{
// used for settings -> enum values must be fixed!
CC_MONO = 0,
CC_MONO_IN_STEREO_OUT = 1,
CC_STEREO = 2
};
// Audio compression type enum -------------------------------------------------
enum EAudComprType
{
// used for protocol -> enum values must be fixed!
CT_NONE = 0,
CT_CELT = 1,
CT_OPUS = 2,
CT_OPUS64 = 3 // using OPUS with 64 samples frame size
};
// Audio quality enum ----------------------------------------------------------
enum EAudioQuality
{
// used for settings and the comobo box index -> enum values must be fixed!
AQ_LOW = 0,
AQ_NORMAL = 1,
AQ_HIGH = 2
};
// Get data status enum --------------------------------------------------------
enum EGetDataStat
{
GS_BUFFER_OK,
GS_BUFFER_UNDERRUN,
GS_CHAN_NOW_DISCONNECTED,
GS_CHAN_NOT_CONNECTED
};
// GUI design enum -------------------------------------------------------------
enum EGUIDesign
{
// used for settings -> enum values must be fixed!
GD_STANDARD = 0,
GD_ORIGINAL = 1
};
// Server licence type enum ----------------------------------------------------
enum ELicenceType
{
// used for protocol -> enum values must be fixed!
LT_NO_LICENCE = 0,
LT_CREATIVECOMMONS = 1
};
// Central server address type -------------------------------------------------
enum ECSAddType
{
AT_MANUAL = 0,
AT_DEFAULT = 1, // Europe and others
AT_NORTH_AMERICA = 2
};
// Skill level enum ------------------------------------------------------------
enum ESkillLevel
{
// used for protocol -> enum values must be fixed!
SL_NOT_SET = 0,
SL_BEGINNER = 1,
SL_INTERMEDIATE = 2,
SL_PROFESSIONAL = 3
};
// define the GUI RGB colors for each skill level
#define RGBCOL_R_SL_NOT_SET 255
#define RGBCOL_G_SL_NOT_SET 255
#define RGBCOL_B_SL_NOT_SET 255
#define RGBCOL_R_SL_BEGINNER 255
#define RGBCOL_G_SL_BEGINNER 255
#define RGBCOL_B_SL_BEGINNER 200
#define RGBCOL_R_SL_INTERMEDIATE 225
#define RGBCOL_G_SL_INTERMEDIATE 255
#define RGBCOL_B_SL_INTERMEDIATE 225
#define RGBCOL_R_SL_SL_PROFESSIONAL 255
#define RGBCOL_G_SL_SL_PROFESSIONAL 225
#define RGBCOL_B_SL_SL_PROFESSIONAL 225
// Stereo signal level meter ---------------------------------------------------
class CStereoSignalLevelMeter
{
public:
CStereoSignalLevelMeter() { Reset(); }
void Update ( const CVector<short>& vecsAudio );
double MicLevelLeft() { return CalcLogResult ( dCurLevelL ); }
double MicLevelRight() { return CalcLogResult ( dCurLevelR ); }
static double CalcLogResult ( const double& dLinearLevel );
void Reset()
{
dCurLevelL = 0.0;
dCurLevelR = 0.0;
}
protected:
double UpdateCurLevel ( double dCurLevel,
const short& sMax );
double dCurLevelL;
double dCurLevelR;
};
// Host address ----------------------------------------------------------------
class CHostAddress
{
public:
enum EStringMode
{
SM_IP_PORT,
SM_IP_NO_LAST_BYTE,
SM_IP_NO_LAST_BYTE_PORT
};
CHostAddress() :
InetAddr ( static_cast<quint32> ( 0 ) ),
iPort ( 0 ) {}
CHostAddress ( const QHostAddress NInetAddr,
const quint16 iNPort ) :
InetAddr ( NInetAddr ),
iPort ( iNPort ) {}
CHostAddress ( const CHostAddress& NHAddr ) :
InetAddr ( NHAddr.InetAddr ),
iPort ( NHAddr.iPort ) {}
// copy operator
CHostAddress& operator= ( const CHostAddress& NHAddr )
{
InetAddr = NHAddr.InetAddr;
iPort = NHAddr.iPort;
return *this;
}
// compare operator
bool operator== ( const CHostAddress& CompAddr ) const
{
return ( ( CompAddr.InetAddr == InetAddr ) &&
( CompAddr.iPort == iPort ) );
}
QString toString ( const EStringMode eStringMode = SM_IP_PORT ) const
{
QString strReturn = InetAddr.toString();
// special case: for local host address, we do not replace the last byte
if ( ( ( eStringMode == SM_IP_NO_LAST_BYTE ) ||
( eStringMode == SM_IP_NO_LAST_BYTE_PORT ) ) &&
( InetAddr != QHostAddress ( QHostAddress::LocalHost ) ) )
{
// replace last byte by an "x"
strReturn = strReturn.section ( ".", 0, 2 ) + ".x";
}
if ( ( eStringMode == SM_IP_PORT ) ||
( eStringMode == SM_IP_NO_LAST_BYTE_PORT ) )
{
// add port number after a semicolon
strReturn += ":" + QString().setNum ( iPort );
}
return strReturn;
}
QHostAddress InetAddr;
quint16 iPort;
};
// Instrument picture data base ------------------------------------------------
// this is a pure static class
class CInstPictures
{
public:
enum EInstCategory
{
IC_OTHER_INSTRUMENT,
IC_WIND_INSTRUMENT,
IC_STRING_INSTRUMENT,
IC_PLUCKING_INSTRUMENT,
IC_PERCUSSION_INSTRUMENT,
IC_KEYBOARD_INSTRUMENT,
IC_MULTIPLE_INSTRUMENT
};
// per definition: the very first instrument is the "not used" instrument
static int GetNotUsedInstrument() { return 0; }
static bool IsNotUsedInstrument ( const int iInstrument ) { return iInstrument == 0; }
static int GetNumAvailableInst() { return GetTable().Size(); }
static QString GetResourceReference ( const int iInstrument );
static QString GetName ( const int iInstrument );
// TODO make use of instrument category (not yet implemented)
protected:
class CInstPictProps
{
public:
CInstPictProps() :
strName ( "" ),
strResourceReference ( "" ),
eInstCategory ( IC_OTHER_INSTRUMENT ) {}
CInstPictProps ( const QString NsName,
const QString NsResRef,
const EInstCategory NeInstCat ) :
strName ( NsName ),
strResourceReference ( NsResRef ),
eInstCategory ( NeInstCat ) {}
QString strName;
QString strResourceReference;
EInstCategory eInstCategory;
};
static bool IsInstIndexInRange ( const int iIdx );
static CVector<CInstPictProps>& GetTable();
};
// Locale management class -----------------------------------------------------
class CLocale
{
public:
static QString GetCountryFlagIconsResourceReference ( const QLocale::Country eCountry );
static ECSAddType GetCentralServerAddressType ( const QLocale::Country eCountry );
};
// Info of a channel -----------------------------------------------------------
class CChannelCoreInfo
{
public:
CChannelCoreInfo() :
strName ( "" ),
eCountry ( QLocale::AnyCountry ),
strCity ( "" ),
iInstrument ( CInstPictures::GetNotUsedInstrument() ),
eSkillLevel ( SL_NOT_SET ) {}
CChannelCoreInfo ( const QString NsName,
const QLocale::Country& NeCountry,
const QString& NsCity,
const int NiInstrument,
const ESkillLevel NeSkillLevel ) :
strName ( NsName ),
eCountry ( NeCountry ),
strCity ( NsCity ),
iInstrument ( NiInstrument ),
eSkillLevel ( NeSkillLevel ) {}
CChannelCoreInfo ( const CChannelCoreInfo& NCorInf ) :
strName ( NCorInf.strName ),
eCountry ( NCorInf.eCountry ),
strCity ( NCorInf.strCity ),
iInstrument ( NCorInf.iInstrument ),
eSkillLevel ( NCorInf.eSkillLevel ) {}
// compare operator
bool operator!= ( const CChannelCoreInfo& CompChanInfo )
{
return ( ( CompChanInfo.strName != strName ) ||
( CompChanInfo.eCountry != eCountry ) ||
( CompChanInfo.strCity != strCity ) ||
( CompChanInfo.iInstrument != iInstrument ) ||
( CompChanInfo.eSkillLevel != eSkillLevel ) );
}
CChannelCoreInfo& operator= ( const CChannelCoreInfo& ) = default;
// fader tag text (channel name)
QString strName;
// country in which the client is located
QLocale::Country eCountry;
// city in which the client is located
QString strCity;
// instrument ID of the client (which instrument is he/she playing)
int iInstrument;
// skill level of the musician
ESkillLevel eSkillLevel;
};
class CChannelInfo : public CChannelCoreInfo
{
public:
CChannelInfo() :
iChanID ( 0 ),
iIpAddr ( 0 ) {}
CChannelInfo ( const int NiID,
const quint32 NiIP,
const CChannelCoreInfo& NCorInf ) :
CChannelCoreInfo ( NCorInf ),
iChanID ( NiID ),
iIpAddr ( NiIP ) {}
CChannelInfo ( const int NiID,
const quint32 NiIP,
const QString NsName,
const QLocale::Country& NeCountry,
const QString& NsCity,
const int NiInstrument,
const ESkillLevel NeSkillLevel ) :
CChannelCoreInfo ( NsName,
NeCountry,
NsCity,
NiInstrument,
NeSkillLevel ),
iChanID ( NiID ),
iIpAddr ( NiIP ) {}
QString GenNameForDisplay() const
{
// if text is empty, show IP address instead
if ( strName.isEmpty() )
{
// convert IP address to text and show it (use dummy port number
// since it is not used here)
const CHostAddress TempAddr =
CHostAddress ( QHostAddress ( iIpAddr ), 0 );
return TempAddr.toString ( CHostAddress::SM_IP_NO_LAST_BYTE );
}
else
{
// show name of channel
return strName;
}
}
// ID of the channel
int iChanID;
// IP address of the channel
quint32 iIpAddr;
};
// Server info -----------------------------------------------------------------
class CServerCoreInfo
{
public:
CServerCoreInfo() :
iLocalPortNumber ( 0 ),
strName ( "" ),
eCountry ( QLocale::AnyCountry ),
strCity ( "" ),
iMaxNumClients ( 0 ),
bPermanentOnline ( false ) {}
CServerCoreInfo (
const quint16 NLocPort,
const QString& NsName,
const QLocale::Country& NeCountry,
const QString& NsCity,
const int NiMaxNumClients,
const bool NbPermOnline) :
iLocalPortNumber ( NLocPort ),
strName ( NsName ),
eCountry ( NeCountry ),
strCity ( NsCity ),
iMaxNumClients ( NiMaxNumClients ),
bPermanentOnline ( NbPermOnline ) {}
// local port number of the server
quint16 iLocalPortNumber;
// name of the server
QString strName;
// country in which the server is located
QLocale::Country eCountry;
// city in which the server is located
QString strCity;
// maximum number of clients which can connect to the server at the same
// time
int iMaxNumClients;
// is the server permanently online or not (flag)
bool bPermanentOnline;
};
class CServerInfo : public CServerCoreInfo
{
public:
CServerInfo() :
HostAddr ( CHostAddress() ),
LHostAddr ( CHostAddress() )
{}
CServerInfo (
const CHostAddress& NHAddr,
const CHostAddress& NLAddr,
const quint16 NLocPort,
const QString& NsName,
const QLocale::Country& NeCountry,
const QString& NsCity,
const int NiMaxNumClients,
const bool NbPermOnline) :
CServerCoreInfo ( NLocPort,
NsName,
NeCountry,
NsCity,
NiMaxNumClients,
NbPermOnline ),
HostAddr ( NHAddr ),
LHostAddr ( NLAddr ) {}
// internet address of the server
CHostAddress HostAddr;
// server internal address
CHostAddress LHostAddr;
};
// Network transport properties ------------------------------------------------
class CNetworkTransportProps
{
public:
CNetworkTransportProps() :
iBaseNetworkPacketSize ( 0 ),
iBlockSizeFact ( 0 ),
iNumAudioChannels ( 0 ),
iSampleRate ( 0 ),
eAudioCodingType ( CT_NONE ),
iAudioCodingArg ( 0 ) {}
CNetworkTransportProps ( const uint32_t iNBNPS,
const uint16_t iNBSF,
const uint32_t iNNACH,
const uint32_t iNSR,
const EAudComprType eNACT,
const uint32_t iNVers,
const int32_t iNACA ) :
iBaseNetworkPacketSize ( iNBNPS ),
iBlockSizeFact ( iNBSF ),
iNumAudioChannels ( iNNACH ),
iSampleRate ( iNSR ),
eAudioCodingType ( eNACT ),
iVersion ( iNVers ),
iAudioCodingArg ( iNACA ) {}
uint32_t iBaseNetworkPacketSize;
uint16_t iBlockSizeFact;
uint32_t iNumAudioChannels;
uint32_t iSampleRate;
EAudComprType eAudioCodingType;
uint32_t iVersion;
int32_t iAudioCodingArg;
};
// Network utility functions ---------------------------------------------------
class NetworkUtil
{
public:
static bool ParseNetworkAddress ( QString strAddress,
CHostAddress& HostAddress );
static CHostAddress GetLocalAddress();
static QString GetCentralServerAddress ( const ECSAddType eCentralServerAddressType,
const QString& strCentralServerAddress );
};
// Operating system utility functions ------------------------------------------
class COSUtil
{
public:
enum EOpSystemType
{
// used for protocol -> enum values must be fixed!
OT_WINDOWS = 0,
OT_MAC_OS = 1,
OT_LINUX = 2,
OT_ANDROID = 3,
OT_I_OS = 4,
OT_UNIX = 5
};
static QString GetOperatingSystemString ( const EOpSystemType eOSType )
{
switch ( eOSType )
{
case OT_WINDOWS: return "Windows";
case OT_MAC_OS: return "MacOS";
case OT_LINUX: return "Linux";
case OT_ANDROID: return "Android";
case OT_I_OS: return "iOS";
case OT_UNIX: return "Unix";
default: return "Unknown";
}
}
static EOpSystemType GetOperatingSystem()
{
#ifdef _WIN32
return OT_WINDOWS;
#elif defined ( __APPLE__ ) || defined ( __MACOSX )
return OT_MAC_OS;
#elif defined ( ANDROID )
return OT_ANDROID;
#else
return OT_LINUX;
#endif
}
};
// Audio reverbration ----------------------------------------------------------
class CAudioReverb
{
public:
CAudioReverb() {}
void Init ( const int iSampleRate, const double rT60 = 1.1 );
void Clear();
void ProcessSample ( int16_t& iInputOutputLeft,
int16_t& iInputOutputRight,
const double dAttenuation );
protected:
void setT60 ( const double rT60, const int iSampleRate );
bool isPrime ( const int number );
class COnePole
{
public:
COnePole() : dA ( 0 ), dB ( 0 ) { Reset(); }
void setPole ( const double dPole );
double Calc ( const double dIn );
void Reset() { dLastSample = 0; }
protected:
double dA;
double dB;
double dLastSample;
};
CFIFO<double> allpassDelays[3];
CFIFO<double> combDelays[4];
COnePole combFilters[4];
CFIFO<double> outLeftDelay;
CFIFO<double> outRightDelay;
double allpassCoefficient;
double combCoefficient[4];
};
// CRC -------------------------------------------------------------------------
class CCRC
{
public:
CCRC() : iPoly ( ( 1 << 5 ) | ( 1 << 12 ) ), iBitOutMask ( 1 << 16 )
{ Reset(); }
void Reset();
void AddByte ( const uint8_t byNewInput );
bool CheckCRC ( const uint32_t iCRC ) { return iCRC == GetCRC(); }
uint32_t GetCRC();
protected:
uint32_t iPoly;
uint32_t iBitOutMask;
uint32_t iStateShiftReg;
};
// Mathematics utilities -------------------------------------------------------
class MathUtils
{
public:
static int round ( double x )
{
return static_cast<int> ( ( x - floor ( x ) ) >= 0.5 ) ? static_cast<int> ( ceil ( x ) ) : static_cast<int> ( floor ( x ) );
}
static void UpDownIIR1 ( double& dOldValue,
const double& dNewValue,
const double& dWeightUp,
const double& dWeightDown )
{
// different IIR weights for up and down direction
if ( dNewValue < dOldValue )
{
dOldValue =
dOldValue * dWeightDown + ( 1.0 - dWeightDown ) * dNewValue;
}
else
{
dOldValue =
dOldValue * dWeightUp + ( 1.0 - dWeightUp ) * dNewValue;
}
}
static int DecideWithHysteresis ( const double dValue,
const int iOldValue,
const double dHysteresis )
{
// apply hysteresis
if ( dValue > static_cast<double> ( iOldValue ) )
{
return round ( dValue - dHysteresis );
}
else
{
return round ( dValue + dHysteresis );
}
}
};
// Precise time ----------------------------------------------------------------
// required for ping measurement
class CPreciseTime
{
public:
#ifdef _WIN32
// for the Windows version we have to define a minimum timer precision
// -> set it to 1 ms
CPreciseTime() { timeBeginPeriod ( 1 ); }
virtual ~CPreciseTime() { timeEndPeriod ( 1 ); }
#endif
// precise time (on Windows the QTime is not precise enough)
int elapsed()
{
#ifdef _WIN32
return timeGetTime();
#elif defined ( __APPLE__ ) || defined ( __MACOSX )
return mach_absolute_time() / 1000000; // convert ns in ms
#else
timespec tp;
clock_gettime ( CLOCK_MONOTONIC, &tp );
return tp.tv_sec * 1000 + tp.tv_nsec / 1000000; // convert ns in ms and add the seconds part
#endif
}
};
// Timing measurement ----------------------------------------------------------
// intended for debugging the timing jitter of the sound card or server timer
#if QT_VERSION >= QT_VERSION_CHECK(4, 7, 0)
class CTimingMeas
{
public:
CTimingMeas ( const int iNNMeas, const QString strNFName = "" ) :
iNumMeas ( iNNMeas ), vElapsedTimes ( iNNMeas ), strFileName ( strNFName ) { Reset(); }
void Reset() { iCnt = -1; }
void Measure()
{
// exclude the very first measurement (initialization phase)
if ( iCnt == -1 )
{
iCnt = 0;
}
else
{
// store current measurement
vElapsedTimes[iCnt++] = ElapsedTimer.nsecsElapsed();
// reset count if number of measurements are done
if ( iCnt >= iNumMeas )
{
iCnt = 0;
// store results in a file if file name is given
if ( !strFileName.isEmpty() )
{
QFile File ( strFileName );
if ( File.open ( QIODevice::WriteOnly | QIODevice::Text ) )
{
QTextStream streamFile ( &File );
for ( int i = 0; i < iNumMeas; i++ )
{
// convert ns in ms and store the value
streamFile << i << " " << static_cast<double> ( vElapsedTimes[i] ) / 1000000 << endl;
}
}
}
}
}
ElapsedTimer.start();
}
protected:
int iNumMeas;
CVector<int> vElapsedTimes;
QString strFileName;
QElapsedTimer ElapsedTimer;
int iCnt;
};
#endif
/******************************************************************************\
* Statistics *
\******************************************************************************/
// Error rate measurement ------------------------------------------------------
class CErrorRate
{
public:
CErrorRate() {}
void Init ( const int iHistoryLength,
const bool bNBlockOnDoubleErr = false )
{
// initialize buffer (use "no data result" of 1.0 which stands for the
// worst error rate possible)
ErrorsMovAvBuf.Init ( iHistoryLength, 1.0 );
bPreviousState = true;
// store setting
bBlockOnDoubleErrors = bNBlockOnDoubleErr;
}
void Reset()
{
ErrorsMovAvBuf.Reset();
bPreviousState = true;
}
void Update ( const bool bState )
{
// if two states were false, do not use the new value
if ( bBlockOnDoubleErrors && bPreviousState && bState )
{
return;
}
// add errors as values 0 and 1 to get correct error rate average
if ( bState )
{
ErrorsMovAvBuf.Add ( 1 );
}
else
{
ErrorsMovAvBuf.Add ( 0 );
}
// store state
bPreviousState = bState;
}
double GetAverage() { return ErrorsMovAvBuf.GetAverage(); }
double InitializationState() { return ErrorsMovAvBuf.InitializationState(); }
protected:
CMovingAv<char> ErrorsMovAvBuf;
bool bBlockOnDoubleErrors;
bool bPreviousState;
};
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