Clean up some early prototype garbage..

src/demod/DemodDefs.h

@@ -14,9 +14,6 @@ class DemodulatorThreadCommand {
 public:
     enum DemodulatorThreadCommandEnum {
         DEMOD_THREAD_CMD_NULL,
-        DEMOD_THREAD_CMD_SET_BANDWIDTH,
-        DEMOD_THREAD_CMD_SET_FREQUENCY,
-        DEMOD_THREAD_CMD_SET_AUDIO_RATE,
         DEMOD_THREAD_CMD_DEMOD_PREPROCESS_TERMINATED,
         DEMOD_THREAD_CMD_DEMOD_TERMINATED,
         DEMOD_THREAD_CMD_AUDIO_TERMINATED
@@ -124,23 +121,3 @@ typedef ThreadQueue<DemodulatorThreadIQData *> DemodulatorThreadInputQueue;
 typedef ThreadQueue<DemodulatorThreadPostIQData *> DemodulatorThreadPostInputQueue;
 typedef ThreadQueue<DemodulatorThreadCommand> DemodulatorThreadCommandQueue;
 typedef ThreadQueue<DemodulatorThreadControlCommand> DemodulatorThreadControlCommandQueue;
-
-class DemodulatorThreadParameters {
-public:
-    long long frequency;
-    long long sampleRate;
-    unsigned int bandwidth; // set equal to disable second stage re-sampling?
-    unsigned int audioSampleRate;
-
-    std::string demodType;
-
-    DemodulatorThreadParameters() :
-            frequency(0), sampleRate(DEFAULT_SAMPLE_RATE), bandwidth(200000), audioSampleRate(0),
-            demodType("FM") {
-
-    }
-
-    ~DemodulatorThreadParameters() {
-
-    }
-};

src/demod/DemodulatorInstance.cpp

@@ -12,22 +12,18 @@ DemodulatorInstance::DemodulatorInstance() :
     muted.store(false);
 	tracking.store(false);
 	follow.store(false);
-	currentAudioSampleRate.store(0);
-	currentFrequency.store(0);
 	currentOutputDevice.store(-1);
     currentAudioGain.store(1.0);
 
     label = new std::string("Unnamed");
     pipeIQInputData = new DemodulatorThreadInputQueue;
     pipeIQDemodData = new DemodulatorThreadPostInputQueue;
-    pipeDemodCommand = new DemodulatorThreadCommandQueue;
     pipeDemodNotify = new DemodulatorThreadCommandQueue;
     
     demodulatorPreThread = new DemodulatorPreThread(this);
     demodulatorPreThread->setInputQueue("IQDataInput",pipeIQInputData);
     demodulatorPreThread->setOutputQueue("IQDataOutput",pipeIQDemodData);
     demodulatorPreThread->setOutputQueue("NotifyQueue",pipeDemodNotify);
-    demodulatorPreThread->setInputQueue("CommandQueue",pipeDemodCommand);
             
     pipeAudioData = new AudioThreadInputQueue;
     threadQueueControl = new DemodulatorThreadControlCommandQueue;
@@ -41,8 +37,6 @@ DemodulatorInstance::DemodulatorInstance() :
     audioThread = new AudioThread();
     audioThread->setInputQueue("AudioDataInput", pipeAudioData);
     audioThread->setOutputQueue("NotifyQueue", pipeDemodNotify);
-
-    currentDemodType = demodulatorPreThread->getParams().demodType;
 }
 
 DemodulatorInstance::~DemodulatorInstance() {
@@ -51,7 +45,6 @@ DemodulatorInstance::~DemodulatorInstance() {
     delete demodulatorPreThread;
     delete pipeIQInputData;
     delete pipeIQDemodData;
-    delete pipeDemodCommand;
     delete pipeDemodNotify;
     delete threadQueueControl;
     delete pipeAudioData;
@@ -66,15 +59,6 @@ void DemodulatorInstance::run() {
         return;
     }
 
-//    while (!isTerminated()) {
-//        std::this_thread::sleep_for(std::chrono::milliseconds(1));
-//    }
-
-    currentFrequency = demodulatorPreThread->getParams().frequency;
-    currentAudioSampleRate = AudioThread::deviceSampleRate[getOutputDevice()];
-    demodulatorPreThread->getParams().audioSampleRate = currentAudioSampleRate;
-    setDemodulatorType(demodulatorPreThread->getParams().demodType);
-
     t_Audio = new std::thread(&AudioThread::threadMain, audioThread);
     
 #ifdef __APPLE__    // Already using pthreads, might as well do some custom init..
@@ -112,10 +96,6 @@ void DemodulatorInstance::updateLabel(long long freq) {
     setLabel(newLabel.str());
 }
 
-DemodulatorThreadCommandQueue *DemodulatorInstance::getCommandQueue() {
-    return pipeDemodCommand;
-}
-
 void DemodulatorInstance::terminate() {
     std::cout << "Terminating demodulator audio thread.." << std::endl;
     audioThread->terminate();
@@ -254,27 +234,14 @@ int DemodulatorInstance::getOutputDevice() {
 }
 
 void DemodulatorInstance::setDemodulatorType(std::string demod_type_in) {
-    currentDemodType = demod_type_in;
-
-    if (currentDemodType == "I/Q") {
-        if (currentAudioSampleRate) {
-            setBandwidth(currentAudioSampleRate);
-        } else {
-            setBandwidth(AudioThread::deviceSampleRate[getOutputDevice()]);
-        }
-    }
     setGain(getGain());
-
+    if (demodulatorPreThread) {
-    demodulatorPreThread->getParams().demodType = currentDemodType;
+        demodulatorPreThread->setDemodType(demod_type_in);
-    if (!active) {
-        demodulatorPreThread->setDemodType(currentDemodType);
-    } else if (demodulatorThread && threadQueueControl) {
-        demodulatorPreThread->setDemodType(currentDemodType);
     }
 }
 
 std::string DemodulatorInstance::getDemodulatorType() {
-    return currentDemodType;
+    return demodulatorPreThread->getDemodType();
 }
 
 void DemodulatorInstance::setDemodulatorLock(bool demod_lock_in) {
@@ -310,65 +277,34 @@ int DemodulatorInstance::getDemodulatorCons() {
 }
 
 void DemodulatorInstance::setBandwidth(int bw) {
-    if (!active && demodulatorPreThread != NULL) {
+    demodulatorPreThread->setBandwidth(bw);
-        demodulatorPreThread->getParams().bandwidth = bw;
-    } else if (demodulatorPreThread && pipeDemodCommand) {
-        DemodulatorThreadCommand command;
-        command.cmd = DemodulatorThreadCommand::DEMOD_THREAD_CMD_SET_BANDWIDTH;
-        command.llong_value = bw;
-        pipeDemodCommand->push(command);
-    }
 }
 
 int DemodulatorInstance::getBandwidth() {
-    return demodulatorPreThread->getParams().bandwidth;
+    return demodulatorPreThread->getBandwidth();
 }
 
 void DemodulatorInstance::setFrequency(long long freq) {
     if ((freq - getBandwidth() / 2) <= 0) {
         freq = getBandwidth() / 2;
     }
-    if (!active) {
+    
-        currentFrequency = freq;
+    demodulatorPreThread->setFrequency(freq);
-        demodulatorPreThread->getParams().frequency = currentFrequency;
-    } else if (demodulatorPreThread && pipeDemodCommand) {
-        DemodulatorThreadCommand command;
-        command.cmd = DemodulatorThreadCommand::DEMOD_THREAD_CMD_SET_FREQUENCY;
-        currentFrequency = freq;
-        command.llong_value = freq;
-        pipeDemodCommand->push(command);
-    }
 }
 
 long long DemodulatorInstance::getFrequency() {
-    if (!currentFrequency) {
+    return demodulatorPreThread->getFrequency();
-        currentFrequency = demodulatorPreThread->getParams().frequency;
-    }
-    return currentFrequency;
 }
 
-
 void DemodulatorInstance::setAudioSampleRate(int sampleRate) {
-    if (terminated) {
+    demodulatorPreThread->setSampleRate(sampleRate);
-        currentAudioSampleRate = sampleRate;
-        demodulatorPreThread->getParams().audioSampleRate = sampleRate;
-    } else if (demodulatorPreThread && pipeDemodCommand) {
-        DemodulatorThreadCommand command;
-        command.cmd = DemodulatorThreadCommand::DEMOD_THREAD_CMD_SET_AUDIO_RATE;
-        currentAudioSampleRate = sampleRate;
-        command.llong_value = sampleRate;
-        pipeDemodCommand->push(command);
-    }
-    if (currentDemodType == "I/Q") {
-        setBandwidth(currentAudioSampleRate);
-    }
 }
 
 int DemodulatorInstance::getAudioSampleRate() {
-    currentAudioSampleRate = audioThread->getSampleRate();
+    if (!audioThread) {
-    demodulatorPreThread->getParams().audioSampleRate = currentAudioSampleRate;
+        return 0;
-
+    }
-    return currentAudioSampleRate;
+    return audioThread->getSampleRate();
 }
 
 

src/demod/DemodulatorInstance.h

@@ -89,7 +89,6 @@ protected:
     DemodulatorThreadInputQueue* pipeIQInputData;
     DemodulatorThreadPostInputQueue* pipeIQDemodData;
     AudioThreadInputQueue *pipeAudioData;
-    DemodulatorThreadCommandQueue* pipeDemodCommand;
     DemodulatorThreadCommandQueue* pipeDemodNotify;
     DemodulatorPreThread *demodulatorPreThread;
     DemodulatorThread *demodulatorThread;
@@ -106,10 +105,7 @@ private:
     std::atomic_bool squelch;
     std::atomic_bool muted;
 
-    std::atomic_llong currentFrequency;
-    std::string currentDemodType;
     std::atomic_int currentOutputDevice;
-    std::atomic_int currentAudioSampleRate;
     std::atomic<float> currentAudioGain;
     std::atomic_bool follow, tracking;
   };

src/demod/DemodulatorPreThread.cpp

@@ -9,7 +9,7 @@
 #include "CubicSDR.h"
 #include "DemodulatorInstance.h"
 
-DemodulatorPreThread::DemodulatorPreThread(DemodulatorInstance *parent) : IOThread(), iqResampler(NULL), iqResampleRatio(1), cModem(nullptr), cModemKit(nullptr), iqInputQueue(NULL), iqOutputQueue(NULL), threadQueueNotify(NULL), commandQueue(NULL)
+DemodulatorPreThread::DemodulatorPreThread(DemodulatorInstance *parent) : IOThread(), iqResampler(NULL), iqResampleRatio(1), cModem(nullptr), cModemKit(nullptr), iqInputQueue(NULL), iqOutputQueue(NULL), threadQueueNotify(NULL)
  {
 	initialized.store(false);
     this->parent = parent;
@@ -23,18 +23,20 @@ DemodulatorPreThread::DemodulatorPreThread(DemodulatorInstance *parent) : IOThre
     workerThread = new DemodulatorWorkerThread();
     workerThread->setInputQueue("WorkerCommandQueue",workerQueue);
     workerThread->setOutputQueue("WorkerResultQueue",workerResults);
+     
+    newSampleRate = currentSampleRate = 0;
+    newBandwidth = currentBandwidth = 0;
+    newAudioSampleRate = currentAudioSampleRate = 0;
+    newFrequency = currentFrequency = 0;
+
+    sampleRateChanged.store(false);
+    frequencyChanged.store(false);
+    bandwidthChanged.store(false);
+    audioSampleRateChanged.store(false);
 }
 
 void DemodulatorPreThread::initialize() {
-    iqResampleRatio = (double) (params.bandwidth) / (double) params.sampleRate;
-
-    float As = 60.0f;         // stop-band attenuation [dB]
-
-    iqResampler = msresamp_crcf_create(iqResampleRatio, As);
-
     initialized.store(true);
-    
-    lastParams = params;
 }
 
 DemodulatorPreThread::~DemodulatorPreThread() {
@@ -59,59 +61,62 @@ void DemodulatorPreThread::run() {
     iqInputQueue = (DemodulatorThreadInputQueue*)getInputQueue("IQDataInput");
     iqOutputQueue = (DemodulatorThreadPostInputQueue*)getOutputQueue("IQDataOutput");
     threadQueueNotify = (DemodulatorThreadCommandQueue*)getOutputQueue("NotifyQueue");
-    commandQueue = ( DemodulatorThreadCommandQueue*)getInputQueue("CommandQueue");
     
     std::vector<liquid_float_complex> in_buf_data;
     std::vector<liquid_float_complex> out_buf_data;
 
-    setDemodType(params.demodType);
     t_Worker = new std::thread(&DemodulatorWorkerThread::threadMain, workerThread);
     
     while (!terminated) {
         DemodulatorThreadIQData *inp;
         iqInputQueue->pop(inp);
         
-        bool bandwidthChanged = false;
+        if (frequencyChanged.load()) {
-        bool rateChanged = false;
+            currentFrequency = newFrequency;
-        DemodulatorThreadParameters tempParams = params;
+            frequencyChanged.store(false);
+        }
         
-        if (!commandQueue->empty()) {
+        if (inp->sampleRate != currentSampleRate) {
-            while (!commandQueue->empty()) {
+            newSampleRate = inp->sampleRate;
-                DemodulatorThreadCommand command;
+            if (newSampleRate) {
-                commandQueue->pop(command);
+                sampleRateChanged.store(true);
-                switch (command.cmd) {
-                case DemodulatorThreadCommand::DEMOD_THREAD_CMD_SET_BANDWIDTH:
-                    if (command.llong_value < 1500) {
-                        command.llong_value = 1500;
-                    }
-                    tempParams.bandwidth = command.llong_value;
-                    bandwidthChanged = true;
-                    break;
-                case DemodulatorThreadCommand::DEMOD_THREAD_CMD_SET_FREQUENCY:
-                    params.frequency = tempParams.frequency = command.llong_value;
-                    break;
-                case DemodulatorThreadCommand::DEMOD_THREAD_CMD_SET_AUDIO_RATE:
-                    tempParams.audioSampleRate = (int)command.llong_value;
-                    rateChanged = true;
-                    break;
-                default:
-                    break;
-                }
             }
         }
         
-        if (inp->sampleRate != tempParams.sampleRate && inp->sampleRate) {
+        if (!newAudioSampleRate) {
-            tempParams.sampleRate = inp->sampleRate;
+            newAudioSampleRate = parent->getAudioSampleRate();
-            rateChanged = true;
+            if (newAudioSampleRate) {
+                audioSampleRateChanged.store(true);
+            }
+        } else if (parent->getAudioSampleRate() != newAudioSampleRate) {
+            int newRate;
+            if ((newRate = parent->getAudioSampleRate())) {
+                newAudioSampleRate = parent->getAudioSampleRate();
+                audioSampleRateChanged.store(true);
+            }
         }
         
-        if (bandwidthChanged || rateChanged) {
+        if (demodTypeChanged.load() && (newSampleRate && newAudioSampleRate && newBandwidth)) {
+            DemodulatorWorkerThreadCommand command(DemodulatorWorkerThreadCommand::DEMOD_WORKER_THREAD_CMD_MAKE_DEMOD);
+            command.frequency = newFrequency;
+            command.sampleRate = newSampleRate;
+            command.demodType = newDemodType;
+            command.bandwidth = newBandwidth;
+            command.audioSampleRate = newAudioSampleRate;
+            workerQueue->push(command);
+            demodType = newDemodType;
+            sampleRateChanged.store(false);
+            audioSampleRateChanged.store(false);
+            demodTypeChanged.store(false);
+        } else if (cModemKit && cModem && (bandwidthChanged.load() || sampleRateChanged.load() || audioSampleRateChanged.load()) && (newSampleRate && newAudioSampleRate && newBandwidth)) {
             DemodulatorWorkerThreadCommand command(DemodulatorWorkerThreadCommand::DEMOD_WORKER_THREAD_CMD_BUILD_FILTERS);
-            command.sampleRate = tempParams.sampleRate;
+            command.frequency = newFrequency;
-            command.audioSampleRate = tempParams.audioSampleRate;
+            command.sampleRate = newSampleRate;
-            command.bandwidth = tempParams.bandwidth;
+            command.bandwidth = newBandwidth;
-            command.frequency = tempParams.frequency;
+            command.audioSampleRate = newAudioSampleRate;
-
+            bandwidthChanged.store(false);
+            sampleRateChanged.store(false);
+            audioSampleRateChanged.store(false);
             workerQueue->push(command);
         }
         
@@ -121,21 +126,21 @@ void DemodulatorPreThread::run() {
         }
 
         // Requested frequency is not center, shift it into the center!
-        if ((params.frequency - inp->frequency) != shiftFrequency || rateChanged) {
+        if ((currentFrequency - inp->frequency) != shiftFrequency) {
-            shiftFrequency = params.frequency - inp->frequency;
+            shiftFrequency = currentFrequency - inp->frequency;
             if (abs(shiftFrequency) <= (int) ((double) (inp->sampleRate / 2) * 1.5)) {
                 nco_crcf_set_frequency(freqShifter, (2.0 * M_PI) * (((double) abs(shiftFrequency)) / ((double) inp->sampleRate)));
             }
         }
 
-        if (abs(shiftFrequency) > (int) ((double) (inp->sampleRate / 2) * 1.5)) {
+        if (cModem && cModemKit && abs(shiftFrequency) > (int) ((double) (inp->sampleRate / 2) * 1.5)) {
             inp->decRefCount();
             continue;
         }
 
 //        std::lock_guard < std::mutex > lock(inp->m_mutex);
         std::vector<liquid_float_complex> *data = &inp->data;
-        if (data->size() && (inp->sampleRate == params.sampleRate)) {
+        if (data->size() && (inp->sampleRate == currentSampleRate) && cModem && cModemKit) {
             int bufSize = data->size();
 
             if (in_buf_data.size() != bufSize) {
@@ -184,7 +189,7 @@ void DemodulatorPreThread::run() {
             resamp->modemType = demodType;
             resamp->modem = cModem;
             resamp->modemKit = cModemKit;
-            resamp->sampleRate = params.bandwidth;
+            resamp->sampleRate = currentBandwidth;
 
             iqOutputQueue->push(resamp);
         }
@@ -198,7 +203,6 @@ void DemodulatorPreThread::run() {
 
                 switch (result.cmd) {
                 case DemodulatorWorkerThreadResult::DEMOD_WORKER_THREAD_RESULT_FILTERS:
-
                     if (result.iqResampler) {
                         if (iqResampler) {
                             msresamp_crcf_destroy(iqResampler);
@@ -213,21 +217,23 @@ void DemodulatorPreThread::run() {
                     
                     if (result.modemKit != nullptr) {
                         cModemKit = result.modemKit;
+                        currentAudioSampleRate = cModemKit->audioSampleRate;
                     }
                         
                     if (result.bandwidth) {
-                        params.bandwidth = result.bandwidth;
+                        currentBandwidth = result.bandwidth;
                     }
 
                     if (result.sampleRate) {
-                        params.sampleRate = result.sampleRate;
+                        currentSampleRate = result.sampleRate;
                     }
                         
                     if (result.modemType != "") {
                         demodType = result.modemType;
-                        params.demodType = result.modemType;
                         demodTypeChanged.store(false);
                     }
+                        
+                    shiftFrequency = inp->frequency-1;
                     break;
                 default:
                     break;
@@ -244,22 +250,8 @@ void DemodulatorPreThread::run() {
     std::cout << "Demodulator preprocessor thread done." << std::endl;
 }
 
-DemodulatorThreadParameters &DemodulatorPreThread::getParams() {
-    return params;
-}
-
-void DemodulatorPreThread::setParams(DemodulatorThreadParameters &params_in) {
-    params = params_in;
-}
-
 void DemodulatorPreThread::setDemodType(std::string demodType) {
-    this->newDemodType = demodType;
+    newDemodType = demodType;
-    DemodulatorWorkerThreadCommand command(DemodulatorWorkerThreadCommand::DEMOD_WORKER_THREAD_CMD_MAKE_DEMOD);
-    command.sampleRate = params.sampleRate;
-    command.demodType = demodType;
-    command.bandwidth = params.bandwidth;
-    command.audioSampleRate = params.audioSampleRate;
-    workerQueue->push(command);
     demodTypeChanged.store(true);
 }
 
@@ -270,6 +262,55 @@ std::string DemodulatorPreThread::getDemodType() {
     return demodType;
 }
 
+void DemodulatorPreThread::setFrequency(long long freq) {
+    frequencyChanged.store(true);
+    newFrequency = freq;
+}
+
+long long DemodulatorPreThread::getFrequency() {
+    if (frequencyChanged.load()) {
+        return newFrequency;
+    }
+    return currentFrequency;
+}
+
+void DemodulatorPreThread::setSampleRate(long long sampleRate) {
+    sampleRateChanged.store(true);
+    newSampleRate = sampleRate;
+}
+
+long long DemodulatorPreThread::getSampleRate() {
+    if (sampleRateChanged.load()) {
+        return newSampleRate;
+    }
+    return currentSampleRate;
+}
+
+void DemodulatorPreThread::setBandwidth(int bandwidth) {
+    bandwidthChanged.store(true);
+    newBandwidth = bandwidth;
+}
+
+int DemodulatorPreThread::getBandwidth() {
+//    if (bandwidthChanged.load()) {
+//        return newBandwidth;
+//    }
+    
+    return currentBandwidth;
+}
+
+void DemodulatorPreThread::setAudioSampleRate(int rate) {
+    audioSampleRateChanged.store(true);
+    newAudioSampleRate = rate;
+}
+
+int DemodulatorPreThread::getAudioSampleRate() {
+    if (audioSampleRateChanged.load()) {
+        return newAudioSampleRate;
+    }
+    return currentAudioSampleRate;
+}
+
 void DemodulatorPreThread::terminate() {
     terminated = true;
     DemodulatorThreadIQData *inp = new DemodulatorThreadIQData;    // push dummy to nudge queue
@@ -284,7 +325,6 @@ void DemodulatorPreThread::terminate() {
     delete workerQueue;
 }
 
-
 Modem *DemodulatorPreThread::getModem() {
     return cModem;
 }

src/demod/DemodulatorPreThread.h

@@ -17,12 +17,21 @@ public:
 
     void run();
     
-    DemodulatorThreadParameters &getParams();
-    void setParams(DemodulatorThreadParameters &params_in);
-    
     void setDemodType(std::string demodType);
     std::string getDemodType();
 
+    void setFrequency(long long sampleRate);
+    long long getFrequency();
+
+    void setSampleRate(long long sampleRate);
+    long long getSampleRate();
+    
+    void setBandwidth(int bandwidth);
+    int getBandwidth();
+    
+    void setAudioSampleRate(int rate);
+    int getAudioSampleRate();
+    
     void initialize();
     void terminate();
 
@@ -38,8 +47,12 @@ protected:
     Modem *cModem;
     ModemKit *cModemKit;
     
-    DemodulatorThreadParameters params;
+    long long currentSampleRate, newSampleRate;
-    DemodulatorThreadParameters lastParams;
+    long long currentFrequency, newFrequency;
+    int currentBandwidth, newBandwidth;
+    int currentAudioSampleRate, newAudioSampleRate;
+
+    std::atomic_bool sampleRateChanged, frequencyChanged, bandwidthChanged, audioSampleRateChanged;
     
     nco_crcf freqShifter;
     int shiftFrequency;
@@ -58,5 +71,4 @@ protected:
     DemodulatorThreadInputQueue* iqInputQueue;
     DemodulatorThreadPostInputQueue* iqOutputQueue;
     DemodulatorThreadCommandQueue* threadQueueNotify;
-    DemodulatorThreadCommandQueue* commandQueue;
 };

src/demod/DemodulatorThread.cpp

@@ -12,7 +12,7 @@
 #include <pthread.h>
 #endif
 
-DemodulatorThread::DemodulatorThread(DemodulatorInstance *parent) : IOThread(), audioSampleRate(0), squelchLevel(-100), signalLevel(-100), squelchEnabled(false), cModem(nullptr), cModemKit(nullptr), iqInputQueue(NULL), audioOutputQueue(NULL), audioVisOutputQueue(NULL), threadQueueControl(NULL), threadQueueNotify(NULL) {
+DemodulatorThread::DemodulatorThread(DemodulatorInstance *parent) : IOThread(), squelchLevel(-100), signalLevel(-100), squelchEnabled(false), cModem(nullptr), cModemKit(nullptr), iqInputQueue(NULL), audioOutputQueue(NULL), audioVisOutputQueue(NULL), threadQueueControl(NULL), threadQueueNotify(NULL) {
     
     demodInstance = parent;
     muted.store(false);
@@ -73,8 +73,6 @@ void DemodulatorThread::run() {
         iqInputQueue->pop(inp);
         //        std::lock_guard < std::mutex > lock(inp->m_mutex);
         
-        audioSampleRate = demodInstance->getAudioSampleRate();
-        
         int bufSize = inp->data.size();
         
         if (!bufSize) {
@@ -127,7 +125,7 @@ void DemodulatorThread::run() {
         if (modemAnalog != nullptr) {
             ati = outputBuffers.getBuffer();
             
-            ati->sampleRate = audioSampleRate;
+            ati->sampleRate = cModemKit->audioSampleRate;
             ati->inputRate = inp->sampleRate;
             ati->setRefCount(1);
         }
@@ -178,7 +176,7 @@ void DemodulatorThread::run() {
                     }
                 } else {
                     for (int i = 0; i < stereoSize / 2; i++) {
-                        ati_vis->inputRate = audioSampleRate;
+                        ati_vis->inputRate = cModemKit->audioSampleRate;
                         ati_vis->sampleRate = 36000;
                         ati_vis->data[i] = ati->data[i * 2];
                         ati_vis->data[i + stereoSize / 2] = ati->data[i * 2 + 1];
@@ -189,7 +187,7 @@ void DemodulatorThread::run() {
                 ati_vis->channels = 1;
                 std::vector<float> *demodOutData = (modemAnalog != nullptr)?modemAnalog->getDemodOutputData():nullptr;
                 if ((numAudioWritten > bufSize) || (demodOutData == nullptr)) {
-                    ati_vis->inputRate = audioSampleRate;
+                    ati_vis->inputRate = cModemKit->audioSampleRate;
                     if (num_vis > numAudioWritten) {
                         num_vis = numAudioWritten;
                     }

src/demod/DemodulatorThread.h

@@ -43,7 +43,6 @@ protected:
     ReBuffer<AudioThreadInput> outputBuffers;
 
     std::atomic_bool muted;
-    int audioSampleRate;
 
     std::atomic<float> squelchLevel;
     std::atomic<float> signalLevel;

src/modules/modem/analog/ModemFMStereo.cpp

@@ -42,6 +42,8 @@ ModemKit *ModemFMStereo::buildKit(long long sampleRate, int audioSampleRate) {
     ModemKitFMStereo *kit = new ModemKitFMStereo;
     
     kit->audioResampleRatio = double(audioSampleRate) / double(sampleRate);
+    kit->sampleRate = sampleRate;
+    kit->audioSampleRate = audioSampleRate;
    
     float As = 60.0f;         // stop-band attenuation [dB]
     

src/visual/PrimaryGLContext.h

@@ -29,6 +29,5 @@ public:
     void setHoverAlpha(float hoverAlpha);
 
 private:
-    DemodulatorThreadParameters defaultDemodParams;
     float hoverAlpha;
 };