C++ setFrequency函数代码示例

void LogVariablesWidget::on_logVariableTable_itemChanged(QTableWidgetItem *item)
{
	if ( item->column() == 1 )      // Frequency
	{
		setFrequency(item->row(), item->text().toDouble());
	}
	else if ( item->column() == 2 ) // Start Time
	{
		setStartTime(item->row(), item->text().toDouble());
	}
	else if ( item->column() == 3 ) // Duration
	{
        setDuration(item->row(), item->text().toDouble());
    }
}

void SynthEvent::applyModules( SynthInstrument* instrument )
{
    bool hasOSC2   = _osc2 != 0;
    float OSC2freq = hasOSC2 ? _osc2->_baseFrequency : _baseFrequency;

    if ( instrument->arpeggiatorActive )
    {
        if ( _arpeggiator == 0 )
            _arpeggiator = instrument->arpeggiator->clone();
        else
            instrument->arpeggiator->cloneProperties( _arpeggiator );
    }
    else if ( _arpeggiator != 0 )
    {
        delete _arpeggiator;
        _arpeggiator = 0;
    }

    if ( hasOSC2 )
        _osc2->applyModules( instrument );

    // pitch shift module active ? make sure current frequency
    // matches the current arpeggiator step
    if ( instrument->arpeggiatorActive )
    {
        setFrequency( _arpeggiator->getPitchForStep( _arpeggiator->getStep(), _baseFrequency ), true, false );
    }
    else
    {
        // restore base frequency upon deactivation of pitch shift modules
        setFrequency( _baseFrequency, false, true );

        if ( hasOSC2 )
            _osc2->setFrequency( OSC2freq, false, true );
    }
}

void sim_bandstack_cb(GtkWidget *widget, gpointer data) {
  BANDSTACK_ENTRY *entry;
  fprintf(stderr,"sim_bandstack_cb\n");
  if(function) {
    entry=bandstack_entry_previous();
  } else {
    entry=bandstack_entry_next();
  }
  setFrequency(entry->frequencyA);
  setMode(entry->mode);
  FILTER* band_filters=filters[entry->mode];
  FILTER* band_filter=&band_filters[entry->filter];
  setFilter(band_filter->low,band_filter->high);
  vfo_update(NULL);
}

void CubicSDR::setDevice(SDRDeviceInfo *dev) {
    if (!sdrThread->isTerminated()) {
        sdrThread->terminate();
        if (t_SDR) {
            t_SDR->join();
            delete t_SDR;
        }
    }
    
    for (SoapySDR::Kwargs::const_iterator i = settingArgs.begin(); i != settingArgs.end(); i++) {
        sdrThread->writeSetting(i->first, i->second);
    }
    sdrThread->setStreamArgs(streamArgs);
    sdrThread->setDevice(dev);
    
    DeviceConfig *devConfig = config.getDevice(dev->getDeviceId());
    
    SoapySDR::Device *soapyDev = dev->getSoapyDevice();
    
    if (soapyDev) {
        //long long freqHigh, freqLow;
        
        //SoapySDR::RangeList freqRange = soapyDev->getFrequencyRange(SOAPY_SDR_RX, 0);
        
        //freqLow = freqRange[0].minimum();
        //freqHigh = freqRange[freqRange.size()-1].maximum();

        // Try for a reasonable default sample rate.
        if (!sampleRateInitialized.load()) {
            sampleRate = dev->getSampleRateNear(SOAPY_SDR_RX, 0, DEFAULT_SAMPLE_RATE);
            sampleRateInitialized.store(true);
        } else {
            sampleRate = dev->getSampleRateNear(SOAPY_SDR_RX, 0, sampleRate);
        }

        if (frequency < sampleRate/2) {
            frequency = sampleRate/2;
        }

        setFrequency(frequency);
        setSampleRate(sampleRate);

        setPPM(devConfig->getPPM());
        setOffset(devConfig->getOffset());

        t_SDR = new std::thread(&SDRThread::threadMain, sdrThread);
    }
}

/* 
 * This thread performs a scan operation based on the scanDirection value.
 *
 * scanDirection = 0: scan forward continuously, pausing at each found station
 * scanDirection = 1: scan forward until a station is found
 * scanDirection = -1: scan backward until a station is found
 */
void RadioWidget::run()
{
   threadRunning = TRUE;

   int signal = 0;

   // loop while no station found or the mode is 'continuous scan'
   while ((signal <= 0) || (scanDirection == 0))
   {
      if (scanDirection >= 0)
      {
         frequency = frequency + 0.2;
         if (frequency > 107.9)
            frequency = 87.9;
      } else
      {
         frequency = frequency - 0.2;
         if (frequency < 87.9)
            frequency = 107.9;
      }
      
      setFrequency(frequency);
      
      // don't know why, but lcd must be told to repaint to show the freq.
      QThread::postEvent( lcd, new QPaintEvent( QRect(0, 0, 580, 300) ) );
      
      // check it thread cancel was requested
      if (threadRunning == FALSE) break;

      // pause is necessary for a correct reading of the signal strength
      QThread::msleep(200);  
      signal = getSignalStrength();
      
      // if in 'continuous scan' mode and station pause, stay here for 3 sec.
      if ((scanDirection == 0) && (signal > 0))
         QThread::sleep(3);
      
      // check again to see if thread cancel was requested
      if (threadRunning == FALSE) break;
   }

   // untoggle all the control buttons
   scan->untoggle();
   scanForward->untoggle();
   scanBackward->untoggle();

   threadRunning = FALSE;
}

boolean VCNL4010::begin(uint8_t addr) {
  _i2caddr = addr;
  Wire.begin();

  uint8_t rev = read8(VCNL4010_PRODUCTID);
  //Serial.println(rev, HEX);
  if ((rev & 0xF0) != 0x20) {
    return false;
  }
  
  setLEDcurrent(20);
  setFrequency(VCNL4010_390K625);

  write8(VCNL4010_INTCONTROL, 0x08);
  return true;
}

//////////////////////////////////////////////////////////////////////////////
//  Increment the frequency by this digit active in edit mode
//////////////////////////////////////////////////////////////////////////////
void CFreqCtrl::incFreq()
{
    if (m_ActiveEditDigit >= 0)
    {
        if (m_DigitInfo[m_ActiveEditDigit].editmode)
        {
            m_freq += m_DigitInfo[m_ActiveEditDigit].incval;
            if (m_ResetLowerDigits) {
                /* Set digits below the active one to 0 */
                m_freq = m_freq - m_freq%m_DigitInfo[m_ActiveEditDigit].weight;
            }
            setFrequency(m_freq);
            m_LastEditDigit = m_ActiveEditDigit;
        }
    }
}

void setLoRaMode(int Channel)
{
	double Frequency;

	// LogMessage("Setting LoRa Mode\n");
	setMode(Channel, RF96_MODE_SLEEP);
	writeRegister(Channel, REG_OPMODE,0x80);
	
	setMode(Channel, RF96_MODE_SLEEP);
  
	if (sscanf(Config.LoRaDevices[Channel].Frequency, "%lf", &Frequency))
	{
		// LogMessage("Set Default Frequency\n");
		setFrequency(Channel, Frequency);
	}
}

void wsMessageReceived(WebSocket& socket, const String& message)
{
	WebSocketsList &clients = server.getActiveWebSockets();

    StaticJsonBuffer<200> jsonBuffer;
    JsonObject& root = jsonBuffer.parseObject(message);
    String actionName  = root["name"].asString();
 
    if(actionName=="enhance"){
    	setEnhance(!enhance);
    }else if(actionName=="power"){
    	setPower(!power);
    }else if(actionName=="mute"){
    	setMmute(!mute);
    }else if(actionName=="mixing"){
    	setMixing(!mixing);
    }else if(actionName=="frequency"){
		setFrequency(root["val"]);
    }else if(actionName=="source"){
		setSource(root["val"]);
    }else if (actionName == "volumeFR") {
        setVolume(CHAN_FR, root["val"]);
    } else if (actionName == "volumeFL") {
        setVolume(CHAN_FL, root["val"]);
    } else if (actionName == "volumeRR") {
        setVolume(CHAN_RR, root["val"]);
    } else if (actionName == "volumeRL") {
        setVolume(CHAN_RL, root["val"]);
    } else if (actionName == "volumeCEN") {
        setVolume(CHAN_CEN, root["val"]);
    } else if (actionName == "volumeSW") {
        setVolume(CHAN_SW, root["val"]);
    } else if (actionName == "volumeALLCH") {
        setVolume(CHAN_ALL, root["val"]);
    } else if (actionName == "volumeSW") {
        setVolume(CHAN_SW, root["val"]);
    } else if (actionName == "lcdText") {
        setLcd(root["line"], root["val"]);
    }





	sendUpdate();
	Serial.printf("WebSocket message received:\r\n%s\r\n", actionName);
}

// BGG -- eliminated the ADSR (breath amp now comes in through
// 	the tick() method) and the vibrato
Brass :: Brass(MY_FLOAT lowestFrequency)
{
  length = (long) (Stk::sampleRate() / lowestFrequency + 1);
  delayLine = new DelayA( 0.5 * length, length );

  lipFilter = new BiQuad();
  lipFilter->setGain( 0.03 );
  dcBlock = new PoleZero();
  dcBlock->setBlockZero();

  this->clear();
	maxPressure = (MY_FLOAT) 0.0;
  lipTarget = 0.0;

  // Necessary to initialize variables.
  setFrequency( 220.0 );
}

bool Hamlib::handleRequest(Session::ref session, Request::ref request, Reply::ref reply) {
	std::string uri = request->getURI();

	if (uri == "/hamlib") {
		if (request->getMethod() == "POST") {
			setFrequency(session, request, reply);
		}
		else {
			sendFrequency(session, request, reply);
		}
	}
	else {
		return false;
	}

	return true;
}

// This command is complex because it only allows setting of frequency for channel 1
// This is because only the tilt motor can be controlled by frequency
void onCommandFrequencyOutput()
{
	if (isChannelCorrect(gParameters[0]))
	{
		uint8_t channel = convertToInt(gParameters[0]);
		uint16_t frequency = convertToUint(gParameters[1]);

		if (channel == TILT_CHANNEL)
		{
			if (isReadCommand(gParameters[1]))
			{
				sendInt(currentFrequency);
				sendAck();
			}
			else
			{
				if (!isSafetyOn)
				{
					if (isIntWithinRange(frequency, MOTOR_MIN_FREQUENCY, MOTOR_MAX_FREQUENCY))
					{
						setFrequency(frequency);
						sendAck();
					}
					else
					{
						sendIntRangeError(MOTOR_MIN_FREQUENCY, MOTOR_MAX_FREQUENCY, HERTZ_UNIT);
					}
				}
				else
				{
					Serial.println(F("Cannot change frequency output while safety is on."));
					sendNack();
				}
			}
		}
		else
		{
			Serial.println(F("Changing or reading of frequency only applies to channel 1"));
			sendNack();
		}
	}
	else
	{
		sendChannelError();
	}
}

void sim_band_cb(GtkWidget *widget, gpointer data) {
  BAND* band;
  BANDSTACK_ENTRY *entry;
fprintf(stderr,"sim_band_cb\n");
  int b=band_get_current();
  if(function) {
    b--;
    if(b<0) {
      b=BANDS-1;
    }
#ifdef LIMESDR
    if(protocol!=LIMESDR_PROTOCOL) {
      if(b==band3400) {
        b=band6;
      }
    }
#endif
  } else {
    b++;
    if(b>=BANDS) {
      b=0;
    }
#ifdef LIMESDR
    if(protocol!=LIMESDR_PROTOCOL) {
      if(b==band70) { 
        b=bandGen;
      }
    }
#endif
  }
  band=band_set_current(b);
  entry=bandstack_entry_get_current();

  setFrequency(entry->frequencyA);
  setMode(entry->mode);
  FILTER* band_filters=filters[entry->mode];
  FILTER* band_filter=&band_filters[entry->filter];
  setFilter(band_filter->low,band_filter->high);

  band=band_get_current_band();
  set_alex_rx_antenna(band->alexRxAntenna);
  set_alex_tx_antenna(band->alexTxAntenna);
  set_alex_attenuation(band->alexAttenuation);
  vfo_update(NULL);
}

//////////////////////////////////////////////////////////////////////////////
//  Clear the selected digit and the digits below (i.e. set them to 0)
//////////////////////////////////////////////////////////////////////////////
void CFreqCtrl::clearFreq()
{
    if (m_ActiveEditDigit >= 0)
    {
        if (m_DigitInfo[m_ActiveEditDigit].editmode)
        {
            m_freq -= m_DigitInfo[m_ActiveEditDigit].val *
                    m_DigitInfo[m_ActiveEditDigit].incval;

            /* digits below the active one are reset to 0 */
            m_freq -= m_freq % m_DigitInfo[m_ActiveEditDigit].weight;

            setFrequency(m_freq);
            m_LastEditDigit = m_ActiveEditDigit;
        }
    }

}

//***************************************************************************
void Kwave::PitchShiftPlugin::updateFilter(Kwave::SampleSource *filter,
                                           bool force)
{
    double sr = signalRate();

    if (!filter) return;

    if (!qFuzzyCompare(m_frequency, m_last_freq) || force)
	filter->setAttribute(SLOT(setFrequency(QVariant)),
	    QVariant((m_frequency * 2.0 * M_PI) / sr));

    if (!qFuzzyCompare(m_speed, m_last_speed) || force)
	filter->setAttribute(SLOT(setSpeed(QVariant)),
	    QVariant(m_speed));

    m_last_freq  = m_frequency;
    m_last_speed = m_speed;
}