Experimental demodulator preprocessor thread
Demodulator becoming a CPU hotspot, trying to break up the workload between threads..
This commit is contained in:
Charles J. Cliffe
parent
76c68cc4fa
commit
c7a167a1d0
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@ -125,6 +125,7 @@ SET (cubicsdr_sources
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src/AppFrame.cpp
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src/sdr/SDRThread.cpp
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src/sdr/SDRPostThread.cpp
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src/demod/DemodulatorPreThread.cpp
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src/demod/DemodulatorThread.cpp
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src/demod/DemodulatorWorkerThread.cpp
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src/demod/DemodulatorInstance.cpp
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@ -151,6 +152,7 @@ SET (cubicsdr_headers
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src/AppFrame.h
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src/sdr/SDRThread.h
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src/sdr/SDRPostThread.h
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src/demod/DemodulatorPreThread.h
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src/demod/DemodulatorThread.h
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src/demod/DemodulatorWorkerThread.h
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src/demod/DemodulatorInstance.h
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@ -1,6 +1,8 @@
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#pragma once
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#include "ThreadQueue.h"
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#include "CubicSDRDefs.h"
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#include "liquid/liquid.h"
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enum DemodulatorType {
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DEMOD_TYPE_NULL,
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@ -17,6 +19,7 @@ public:
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DEMOD_THREAD_CMD_NULL,
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DEMOD_THREAD_CMD_SET_BANDWIDTH,
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DEMOD_THREAD_CMD_SET_FREQUENCY,
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DEMOD_THREAD_CMD_DEMOD_PREPROCESS_TERMINATED,
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DEMOD_THREAD_CMD_DEMOD_TERMINATED,
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DEMOD_THREAD_CMD_AUDIO_TERMINATED
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};
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@ -58,6 +61,22 @@ public:
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}
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};
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class DemodulatorThreadPostIQData {
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public:
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std::vector<liquid_float_complex> data;
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float audio_resample_ratio;
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msresamp_crcf audio_resampler;
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DemodulatorThreadPostIQData(): audio_resample_ratio(0), audio_resampler(NULL) {
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}
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~DemodulatorThreadPostIQData() {
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}
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};
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class DemodulatorThreadAudioData {
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public:
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unsigned int frequency;
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@ -84,4 +103,26 @@ public:
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};
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typedef ThreadQueue<DemodulatorThreadIQData> DemodulatorThreadInputQueue;
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typedef ThreadQueue<DemodulatorThreadPostIQData> DemodulatorThreadPostInputQueue;
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typedef ThreadQueue<DemodulatorThreadCommand> DemodulatorThreadCommandQueue;
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class DemodulatorThreadParameters {
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public:
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unsigned int frequency;
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unsigned int inputRate;
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unsigned int bandwidth; // set equal to disable second stage re-sampling?
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unsigned int audioSampleRate;
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DemodulatorType demodType;
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DemodulatorThreadParameters() :
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frequency(0), inputRate(SRATE), bandwidth(200000), audioSampleRate(
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AUDIO_FREQUENCY), demodType(DEMOD_TYPE_FM) {
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}
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~DemodulatorThreadParameters() {
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}
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};
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@ -1,87 +1,137 @@
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#include "DemodulatorInstance.h"
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DemodulatorInstance::DemodulatorInstance() :
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t_Demod(NULL), t_Audio(NULL), threadQueueDemod(NULL), demodulatorThread(NULL), terminated(false), audioTerminated(false), demodTerminated(
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false) {
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t_Demod(NULL), t_PreDemod(NULL), t_Audio(NULL), threadQueueDemod(NULL), demodulatorThread(NULL), terminated(false), audioTerminated(false), demodTerminated(
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false), preDemodTerminated(false) {
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label = new std::string("Unnamed");
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threadQueueDemod = new DemodulatorThreadInputQueue;
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threadQueueCommand = new DemodulatorThreadCommandQueue;
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threadQueueNotify = new DemodulatorThreadCommandQueue;
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demodulatorThread = new DemodulatorThread(threadQueueDemod, threadQueueNotify);
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demodulatorThread->setCommandQueue(threadQueueCommand);
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audioInputQueue = new AudioThreadInputQueue;
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audioThread = new AudioThread(audioInputQueue, threadQueueNotify);
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demodulatorThread->setAudioInputQueue(audioInputQueue);
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label = new std::string("Unnamed");
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threadQueueDemod = new DemodulatorThreadInputQueue;
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threadQueuePostDemod = new DemodulatorThreadPostInputQueue;
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threadQueueCommand = new DemodulatorThreadCommandQueue;
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threadQueueNotify = new DemodulatorThreadCommandQueue;
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demodulatorPreThread = new DemodulatorPreThread(threadQueueDemod, threadQueuePostDemod, threadQueueNotify);
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demodulatorPreThread->setCommandQueue(threadQueueCommand);
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demodulatorThread = new DemodulatorThread(threadQueuePostDemod, threadQueueNotify);
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audioInputQueue = new AudioThreadInputQueue;
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audioThread = new AudioThread(audioInputQueue, threadQueueNotify);
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demodulatorThread->setAudioInputQueue(audioInputQueue);
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}
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DemodulatorInstance::~DemodulatorInstance() {
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delete audioThread;
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delete demodulatorThread;
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delete audioThread;
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delete demodulatorThread;
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delete audioInputQueue;
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delete threadQueueDemod;
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delete audioInputQueue;
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delete threadQueueDemod;
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}
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void DemodulatorInstance::setVisualOutputQueue(DemodulatorThreadOutputQueue *tQueue) {
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demodulatorThread->setVisualOutputQueue(tQueue);
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demodulatorThread->setVisualOutputQueue(tQueue);
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}
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void DemodulatorInstance::run() {
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t_Audio = new std::thread(&AudioThread::threadMain, audioThread);
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t_Audio = new std::thread(&AudioThread::threadMain, audioThread);
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#ifdef __APPLE__ // Already using pthreads, might as well do some custom init..
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pthread_attr_t attr;
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size_t size;
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pthread_attr_t attr;
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size_t size;
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pthread_attr_init(&attr);
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pthread_attr_setstacksize(&attr, 2048000);
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pthread_attr_getstacksize(&attr, &size);
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pthread_create(&t_Demod, &attr, &DemodulatorThread::pthread_helper, demodulatorThread);
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pthread_attr_destroy(&attr);
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pthread_attr_init(&attr);
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pthread_attr_setstacksize(&attr, 2048000);
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pthread_attr_getstacksize(&attr, &size);
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pthread_create(&t_PreDemod, &attr, &DemodulatorPreThread::pthread_helper, demodulatorPreThread);
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pthread_attr_destroy(&attr);
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std::cout << "Initialized demodulator stack size of " << size << std::endl;
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pthread_attr_init(&attr);
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pthread_attr_setstacksize(&attr, 2048000);
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pthread_attr_getstacksize(&attr, &size);
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pthread_create(&t_Demod, &attr, &DemodulatorThread::pthread_helper, demodulatorThread);
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pthread_attr_destroy(&attr);
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std::cout << "Initialized demodulator stack size of " << size << std::endl;
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#else
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t_Demod = new std::thread(&DemodulatorThread::threadMain, demodulatorThread);
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t_PreDemod = new std::thread(&DemodulatorPreThread::threadMain, demodulatorPreThread);
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t_Demod = new std::thread(&DemodulatorThread::threadMain, demodulatorThread);
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#endif
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}
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void DemodulatorInstance::updateLabel(int freq) {
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std::stringstream newLabel;
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newLabel.precision(3);
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newLabel << std::fixed << ((float) freq / 1000000.0);
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setLabel(newLabel.str());
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std::stringstream newLabel;
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newLabel.precision(3);
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newLabel << std::fixed << ((float) freq / 1000000.0);
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setLabel(newLabel.str());
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}
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DemodulatorThreadCommandQueue *DemodulatorInstance::getCommandQueue() {
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return threadQueueCommand;
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return threadQueueCommand;
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}
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DemodulatorThreadParameters &DemodulatorInstance::getParams() {
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return demodulatorThread->getParams();
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return demodulatorPreThread->getParams();
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}
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void DemodulatorInstance::terminate() {
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std::cout << "Terminating demodulator thread.." << std::endl;
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demodulatorThread->terminate();
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//#ifdef __APPLE__
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// pthread_join(t_Demod,NULL);
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//#else
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//#endif
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std::cout << "Terminating demodulator audio thread.." << std::endl;
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audioThread->terminate();
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std::cout << "Terminating demodulator preprocessor thread.." << std::endl;
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demodulatorPreThread->terminate();
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std::cout << "Terminating demodulator thread.." << std::endl;
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demodulatorThread->terminate();
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std::cout << "Terminating demodulator audio thread.." << std::endl;
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audioThread->terminate();
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}
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std::string DemodulatorInstance::getLabel() {
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return *(label.load());
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return *(label.load());
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}
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void DemodulatorInstance::setLabel(std::string labelStr) {
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std::string *newLabel = new std::string;
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newLabel->append(labelStr);
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std::string *oldLabel;
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oldLabel = label;
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label = newLabel;
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delete oldLabel;
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std::string *newLabel = new std::string;
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newLabel->append(labelStr);
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std::string *oldLabel;
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oldLabel = label;
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label = newLabel;
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delete oldLabel;
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}
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bool DemodulatorInstance::isTerminated() {
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while (!threadQueueNotify->empty()) {
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DemodulatorThreadCommand cmd;
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threadQueueNotify->pop(cmd);
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switch (cmd.cmd) {
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case DemodulatorThreadCommand::DEMOD_THREAD_CMD_AUDIO_TERMINATED:
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audioThread = NULL;
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t_Audio->join();
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audioTerminated = true;
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break;
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case DemodulatorThreadCommand::DEMOD_THREAD_CMD_DEMOD_TERMINATED:
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demodulatorThread = NULL;
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#ifdef __APPLE__
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pthread_join(t_Demod, NULL);
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#else
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t_Demod->join();
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#endif
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demodTerminated = true;
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break;
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case DemodulatorThreadCommand::DEMOD_THREAD_CMD_DEMOD_PREPROCESS_TERMINATED:
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demodulatorPreThread = NULL;
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#ifdef __APPLE__
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pthread_join(t_PreDemod, NULL);
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#else
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t_PreDemod->join();
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#endif
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preDemodTerminated = true;
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break;
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default:
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break;
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}
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}
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terminated = audioTerminated && demodTerminated && preDemodTerminated;
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return terminated;
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}
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@ -5,17 +5,22 @@
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#include <thread>
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#include "DemodulatorThread.h"
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#include "DemodulatorPreThread.h"
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class DemodulatorInstance {
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public:
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DemodulatorThreadInputQueue* threadQueueDemod;
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DemodulatorThreadPostInputQueue* threadQueuePostDemod;
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DemodulatorThreadCommandQueue* threadQueueCommand;
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DemodulatorThreadCommandQueue* threadQueueNotify;
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DemodulatorPreThread *demodulatorPreThread;
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DemodulatorThread *demodulatorThread;
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#ifdef __APPLE__
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pthread_t t_PreDemod;
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pthread_t t_Demod;
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#else
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std::thread *t_PreDemod;
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std::thread *t_Demod;
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#endif
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@ -44,6 +49,7 @@ private:
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bool terminated;
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bool demodTerminated;
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bool audioTerminated;
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bool preDemodTerminated;
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};
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@ -5,169 +5,138 @@
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#include <string>
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#include <sstream>
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DemodulatorMgr::DemodulatorMgr() :
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activeDemodulator(NULL), lastActiveDemodulator(NULL), activeVisualDemodulator(NULL) {
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activeDemodulator(NULL), lastActiveDemodulator(NULL), activeVisualDemodulator(NULL) {
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}
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DemodulatorMgr::~DemodulatorMgr() {
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terminateAll();
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terminateAll();
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}
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DemodulatorInstance *DemodulatorMgr::newThread() {
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DemodulatorInstance *newDemod = new DemodulatorInstance;
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DemodulatorInstance *newDemod = new DemodulatorInstance;
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demods.push_back(newDemod);
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demods.push_back(newDemod);
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std::stringstream label;
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label << demods.size();
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newDemod->setLabel(label.str());
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std::stringstream label;
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label << demods.size();
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newDemod->setLabel(label.str());
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return newDemod;
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return newDemod;
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}
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void DemodulatorMgr::terminateAll() {
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while (demods.size()) {
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DemodulatorInstance *d = demods.back();
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deleteThread(d);
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}
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while (demods.size()) {
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DemodulatorInstance *d = demods.back();
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deleteThread(d);
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}
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}
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std::vector<DemodulatorInstance *> &DemodulatorMgr::getDemodulators() {
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return demods;
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return demods;
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}
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void DemodulatorMgr::deleteThread(DemodulatorInstance *demod) {
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std::vector<DemodulatorInstance *>::iterator i;
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std::vector<DemodulatorInstance *>::iterator i;
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i = std::find(demods.begin(), demods.end(), demod);
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i = std::find(demods.begin(), demods.end(), demod);
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if (activeDemodulator == demod) {
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activeDemodulator = NULL;
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}
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if (lastActiveDemodulator == demod) {
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lastActiveDemodulator = NULL;
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}
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if (activeVisualDemodulator == demod) {
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activeVisualDemodulator = NULL;
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}
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if (activeDemodulator == demod) {
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activeDemodulator = NULL;
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}
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if (lastActiveDemodulator == demod) {
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lastActiveDemodulator = NULL;
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}
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if (activeVisualDemodulator == demod) {
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activeVisualDemodulator = NULL;
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}
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if (i != demods.end()) {
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demods.erase(i);
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demod->terminate();
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}
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if (i != demods.end()) {
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demods.erase(i);
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demod->terminate();
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}
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demods_deleted.push_back(demod);
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demods_deleted.push_back(demod);
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garbageCollect();
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garbageCollect();
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}
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std::vector<DemodulatorInstance *> *DemodulatorMgr::getDemodulatorsAt(int freq, int bandwidth) {
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std::vector<DemodulatorInstance *> *foundDemods = new std::vector<DemodulatorInstance *>();
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std::vector<DemodulatorInstance *> *foundDemods = new std::vector<DemodulatorInstance *>();
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for (int i = 0, iMax = demods.size(); i < iMax; i++) {
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DemodulatorInstance *testDemod = demods[i];
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for (int i = 0, iMax = demods.size(); i < iMax; i++) {
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DemodulatorInstance *testDemod = demods[i];
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int freqTest = testDemod->getParams().frequency;
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int bandwidthTest = testDemod->getParams().bandwidth;
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int halfBandwidthTest = bandwidthTest / 2;
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int freqTest = testDemod->getParams().frequency;
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int bandwidthTest = testDemod->getParams().bandwidth;
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int halfBandwidthTest = bandwidthTest / 2;
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int halfBuffer = bandwidth / 2;
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int halfBuffer = bandwidth / 2;
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if ((freq <= (freqTest + halfBandwidthTest + halfBuffer)) && (freq >= (freqTest - halfBandwidthTest - halfBuffer))) {
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foundDemods->push_back(testDemod);
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}
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}
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if ((freq <= (freqTest + halfBandwidthTest + halfBuffer)) && (freq >= (freqTest - halfBandwidthTest - halfBuffer))) {
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foundDemods->push_back(testDemod);
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}
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}
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return foundDemods;
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return foundDemods;
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}
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void DemodulatorMgr::setActiveDemodulator(DemodulatorInstance *demod, bool temporary) {
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if (!temporary) {
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if (activeDemodulator != NULL) {
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lastActiveDemodulator = activeDemodulator;
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} else {
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lastActiveDemodulator = demod;
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}
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}
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if (!temporary) {
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if (activeDemodulator != NULL) {
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lastActiveDemodulator = activeDemodulator;
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} else {
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lastActiveDemodulator = demod;
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}
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}
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if (activeVisualDemodulator) {
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activeVisualDemodulator->setVisualOutputQueue(NULL);
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}
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if (demod) {
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demod->setVisualOutputQueue(wxGetApp().getAudioVisualQueue());
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activeVisualDemodulator = demod;
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} else {
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DemodulatorInstance *last = getLastActiveDemodulator();
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if (last) {
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last->setVisualOutputQueue(wxGetApp().getAudioVisualQueue());
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}
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activeVisualDemodulator = last;
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}
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if (activeVisualDemodulator) {
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activeVisualDemodulator->setVisualOutputQueue(NULL);
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}
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if (demod) {
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demod->setVisualOutputQueue(wxGetApp().getAudioVisualQueue());
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activeVisualDemodulator = demod;
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} else {
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DemodulatorInstance *last = getLastActiveDemodulator();
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if (last) {
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last->setVisualOutputQueue(wxGetApp().getAudioVisualQueue());
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}
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activeVisualDemodulator = last;
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}
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activeDemodulator = demod;
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activeDemodulator = demod;
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garbageCollect();
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garbageCollect();
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}
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DemodulatorInstance *DemodulatorMgr::getActiveDemodulator() {
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return activeDemodulator;
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return activeDemodulator;
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}
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DemodulatorInstance *DemodulatorMgr::getLastActiveDemodulator() {
|
||||
if (std::find(demods.begin(), demods.end(), lastActiveDemodulator) == demods.end()) {
|
||||
lastActiveDemodulator = activeDemodulator;
|
||||
}
|
||||
if (std::find(demods.begin(), demods.end(), lastActiveDemodulator) == demods.end()) {
|
||||
lastActiveDemodulator = activeDemodulator;
|
||||
}
|
||||
|
||||
return lastActiveDemodulator;
|
||||
return lastActiveDemodulator;
|
||||
}
|
||||
|
||||
void DemodulatorMgr::garbageCollect() {
|
||||
if (demods_deleted.size()) {
|
||||
std::vector<DemodulatorInstance *>::iterator i;
|
||||
if (demods_deleted.size()) {
|
||||
std::vector<DemodulatorInstance *>::iterator i;
|
||||
|
||||
for (i = demods_deleted.begin(); i != demods_deleted.end(); i++) {
|
||||
if ((*i)->isTerminated()) {
|
||||
DemodulatorInstance *deleted = (*i);
|
||||
demods_deleted.erase(i);
|
||||
for (i = demods_deleted.begin(); i != demods_deleted.end(); i++) {
|
||||
if ((*i)->isTerminated()) {
|
||||
DemodulatorInstance *deleted = (*i);
|
||||
demods_deleted.erase(i);
|
||||
|
||||
std::cout << "Garbage collected demodulator instance " << deleted->getLabel() << std::endl;
|
||||
std::cout << "Garbage collected demodulator instance " << deleted->getLabel() << std::endl;
|
||||
|
||||
delete deleted;
|
||||
return;
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
bool DemodulatorInstance::isTerminated() {
|
||||
while (!threadQueueNotify->empty()) {
|
||||
DemodulatorThreadCommand cmd;
|
||||
threadQueueNotify->pop(cmd);
|
||||
|
||||
switch (cmd.cmd) {
|
||||
case DemodulatorThreadCommand::DEMOD_THREAD_CMD_AUDIO_TERMINATED:
|
||||
audioThread = NULL;
|
||||
t_Audio->join();
|
||||
audioTerminated = true;
|
||||
break;
|
||||
case DemodulatorThreadCommand::DEMOD_THREAD_CMD_DEMOD_TERMINATED:
|
||||
demodulatorThread = NULL;
|
||||
#ifdef __APPLE__
|
||||
pthread_join(t_Demod,NULL);
|
||||
#else
|
||||
t_Demod->join();
|
||||
#endif
|
||||
demodTerminated = true;
|
||||
break;
|
||||
default:
|
||||
break;
|
||||
}
|
||||
}
|
||||
|
||||
terminated = audioTerminated && demodTerminated;
|
||||
|
||||
return terminated;
|
||||
delete deleted;
|
||||
return;
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
|
|
|
|||
|
|
@ -1,4 +1,4 @@
|
|||
#include "DemodulatorThread.h"
|
||||
|
||||
#include "CubicSDRDefs.h"
|
||||
#include <vector>
|
||||
|
||||
|
|
@ -6,8 +6,10 @@
|
|||
#include <pthread.h>
|
||||
#endif
|
||||
|
||||
DemodulatorThread::DemodulatorThread(DemodulatorThreadInputQueue* pQueue, DemodulatorThreadCommandQueue* threadQueueNotify) :
|
||||
inputQueue(pQueue), visOutQueue(NULL), terminated(false), initialized(false), audio_resampler(NULL), resample_ratio(1), audio_resample_ratio(
|
||||
#include "DemodulatorPreThread.h"
|
||||
|
||||
DemodulatorPreThread::DemodulatorPreThread(DemodulatorThreadInputQueue* pQueueIn, DemodulatorThreadPostInputQueue* pQueueOut, DemodulatorThreadCommandQueue* threadQueueNotify) :
|
||||
inputQueue(pQueueIn), postInputQueue(pQueueOut), terminated(false), initialized(false), audio_resampler(NULL), resample_ratio(1), audio_resample_ratio(
|
||||
1), resampler(NULL), commandQueue(NULL), fir_filter(NULL), audioInputQueue(NULL), threadQueueNotify(threadQueueNotify) {
|
||||
|
||||
float kf = 0.5; // modulation factor
|
||||
|
|
@ -24,7 +26,7 @@ DemodulatorThread::DemodulatorThread(DemodulatorThreadInputQueue* pQueue, Demodu
|
|||
t_Worker = new std::thread(&DemodulatorWorkerThread::threadMain, workerThread);
|
||||
}
|
||||
|
||||
void DemodulatorThread::initialize() {
|
||||
void DemodulatorPreThread::initialize() {
|
||||
initialized = false;
|
||||
|
||||
resample_ratio = (float) (params.bandwidth) / (float) params.inputRate;
|
||||
|
|
@ -74,26 +76,24 @@ void DemodulatorThread::initialize() {
|
|||
last_params = params;
|
||||
}
|
||||
|
||||
DemodulatorThread::~DemodulatorThread() {
|
||||
DemodulatorPreThread::~DemodulatorPreThread() {
|
||||
delete workerThread;
|
||||
delete workerQueue;
|
||||
delete workerResults;
|
||||
}
|
||||
|
||||
#ifdef __APPLE__
|
||||
void *DemodulatorThread::threadMain() {
|
||||
void *DemodulatorPreThread::threadMain() {
|
||||
#else
|
||||
void DemodulatorThread::threadMain() {
|
||||
void DemodulatorPreThread::threadMain() {
|
||||
#endif
|
||||
|
||||
if (!initialized) {
|
||||
initialize();
|
||||
}
|
||||
|
||||
liquid_float_complex *in_buf = new liquid_float_complex[BUF_SIZE / 2];
|
||||
liquid_float_complex *out_buf = new liquid_float_complex[BUF_SIZE / 2];
|
||||
|
||||
std::cout << "Demodulator thread started.." << std::endl;
|
||||
std::cout << "Demodulator preprocessor thread started.." << std::endl;
|
||||
while (!terminated) {
|
||||
DemodulatorThreadIQData inp;
|
||||
inputQueue->pop(inp);
|
||||
|
|
@ -154,66 +154,47 @@ void DemodulatorThread::threadMain() {
|
|||
|
||||
std::vector<signed char> *data = &inp.data;
|
||||
if (data->size()) {
|
||||
liquid_float_complex *temp_buf;
|
||||
int bufSize = data->size() / 2;
|
||||
|
||||
for (int i = 0; i < BUF_SIZE / 2; i++) {
|
||||
liquid_float_complex in_buf_data[bufSize];
|
||||
liquid_float_complex out_buf_data[bufSize];
|
||||
|
||||
liquid_float_complex *in_buf = in_buf_data;
|
||||
liquid_float_complex *out_buf = out_buf_data;
|
||||
liquid_float_complex *temp_buf = NULL;
|
||||
|
||||
for (int i = 0; i < bufSize; i++) {
|
||||
in_buf[i].real = (float) (*data)[i * 2] / 127.0f;
|
||||
in_buf[i].imag = (float) (*data)[i * 2 + 1] / 127.0f;
|
||||
}
|
||||
|
||||
if (shift_freq != 0) {
|
||||
if (shift_freq < 0) {
|
||||
nco_crcf_mix_block_up(nco_shift, in_buf, out_buf, BUF_SIZE / 2);
|
||||
nco_crcf_mix_block_up(nco_shift, in_buf, out_buf, bufSize);
|
||||
} else {
|
||||
nco_crcf_mix_block_down(nco_shift, in_buf, out_buf, BUF_SIZE / 2);
|
||||
nco_crcf_mix_block_down(nco_shift, in_buf, out_buf, bufSize);
|
||||
}
|
||||
temp_buf = in_buf;
|
||||
in_buf = out_buf;
|
||||
out_buf = temp_buf;
|
||||
}
|
||||
|
||||
firfilt_crcf_execute_block(fir_filter, in_buf, BUF_SIZE / 2, out_buf);
|
||||
firfilt_crcf_execute_block(fir_filter, in_buf, bufSize, out_buf);
|
||||
|
||||
int out_size = ceil((float) (BUF_SIZE / 2) * resample_ratio);
|
||||
int out_size = ceil((float) (bufSize) * resample_ratio);
|
||||
|
||||
liquid_float_complex resampled_output[out_size];
|
||||
float demod_output[out_size];
|
||||
DemodulatorThreadPostIQData resamp;
|
||||
|
||||
resamp.audio_resample_ratio = audio_resample_ratio;
|
||||
resamp.audio_resampler = audio_resampler;
|
||||
resamp.data.resize(out_size);
|
||||
|
||||
unsigned int num_written; // number of values written to buffer
|
||||
msresamp_crcf_execute(resampler, out_buf, (BUF_SIZE / 2), resampled_output, &num_written);
|
||||
msresamp_crcf_execute(resampler, out_buf, (bufSize), &resamp.data[0], &num_written);
|
||||
|
||||
freqdem_demodulate_block(fdem, resampled_output, num_written, demod_output);
|
||||
resamp.data.resize(num_written);
|
||||
|
||||
for (int i = 0; i < num_written; i++) {
|
||||
resampled_output[i].real = demod_output[i];
|
||||
resampled_output[i].imag = 0;
|
||||
}
|
||||
|
||||
int audio_out_size = ceil((float) (num_written) * audio_resample_ratio);
|
||||
liquid_float_complex resampled_audio_output[audio_out_size];
|
||||
|
||||
unsigned int num_audio_written;
|
||||
msresamp_crcf_execute(audio_resampler, resampled_output, num_written, resampled_audio_output, &num_audio_written);
|
||||
|
||||
std::vector<float> newBuffer;
|
||||
newBuffer.resize(num_audio_written * 2);
|
||||
for (int i = 0; i < num_audio_written; i++) {
|
||||
liquid_float_complex y = resampled_audio_output[i];
|
||||
|
||||
newBuffer[i * 2] = y.real;
|
||||
newBuffer[i * 2 + 1] = y.real;
|
||||
}
|
||||
|
||||
AudioThreadInput ati;
|
||||
ati.data = newBuffer;
|
||||
|
||||
if (audioInputQueue != NULL) {
|
||||
audioInputQueue->push(ati);
|
||||
}
|
||||
|
||||
if (visOutQueue != NULL) {
|
||||
visOutQueue->push(ati);
|
||||
}
|
||||
postInputQueue->push(resamp);
|
||||
}
|
||||
|
||||
if (!workerResults->empty()) {
|
||||
|
|
@ -244,16 +225,13 @@ void DemodulatorThread::threadMain() {
|
|||
}
|
||||
}
|
||||
|
||||
delete in_buf;
|
||||
delete out_buf;
|
||||
|
||||
std::cout << "Demodulator thread done." << std::endl;
|
||||
DemodulatorThreadCommand tCmd(DemodulatorThreadCommand::DEMOD_THREAD_CMD_DEMOD_TERMINATED);
|
||||
std::cout << "Demodulator preprocessor thread done." << std::endl;
|
||||
DemodulatorThreadCommand tCmd(DemodulatorThreadCommand::DEMOD_THREAD_CMD_DEMOD_PREPROCESS_TERMINATED);
|
||||
tCmd.context = this;
|
||||
threadQueueNotify->push(tCmd);
|
||||
}
|
||||
|
||||
void DemodulatorThread::terminate() {
|
||||
void DemodulatorPreThread::terminate() {
|
||||
terminated = true;
|
||||
DemodulatorThreadIQData inp; // push dummy to nudge queue
|
||||
inputQueue->push(inp);
|
||||
|
|
@ -2,46 +2,16 @@
|
|||
|
||||
#include <queue>
|
||||
#include <vector>
|
||||
#include "wx/wxprec.h"
|
||||
|
||||
#ifndef WX_PRECOMP
|
||||
#include "wx/wx.h"
|
||||
#endif
|
||||
|
||||
#include "wx/thread.h"
|
||||
|
||||
#include "liquid/liquid.h"
|
||||
#include "CubicSDRDefs.h"
|
||||
#include "DemodulatorWorkerThread.h"
|
||||
#include "DemodDefs.h"
|
||||
#include "DemodulatorWorkerThread.h"
|
||||
|
||||
class DemodulatorThreadParameters {
|
||||
public:
|
||||
unsigned int frequency;
|
||||
unsigned int inputRate;
|
||||
unsigned int bandwidth; // set equal to disable second stage re-sampling?
|
||||
unsigned int audioSampleRate;
|
||||
|
||||
DemodulatorType demodType;
|
||||
|
||||
DemodulatorThreadParameters() :
|
||||
frequency(0), inputRate(SRATE), bandwidth(200000), audioSampleRate(
|
||||
AUDIO_FREQUENCY), demodType(DEMOD_TYPE_FM) {
|
||||
|
||||
}
|
||||
|
||||
~DemodulatorThreadParameters() {
|
||||
|
||||
}
|
||||
};
|
||||
|
||||
typedef ThreadQueue<AudioThreadInput> DemodulatorThreadOutputQueue;
|
||||
|
||||
class DemodulatorThread {
|
||||
class DemodulatorPreThread {
|
||||
public:
|
||||
|
||||
DemodulatorThread(DemodulatorThreadInputQueue* pQueue, DemodulatorThreadCommandQueue* threadQueueNotify);
|
||||
~DemodulatorThread();
|
||||
DemodulatorPreThread(DemodulatorThreadInputQueue* pQueueIn, DemodulatorThreadPostInputQueue* pQueueOut, DemodulatorThreadCommandQueue* threadQueueNotify);
|
||||
~DemodulatorPreThread();
|
||||
|
||||
#ifdef __APPLE__
|
||||
void *threadMain();
|
||||
|
|
@ -49,10 +19,6 @@ public:
|
|||
void threadMain();
|
||||
#endif
|
||||
|
||||
void setVisualOutputQueue(DemodulatorThreadOutputQueue *tQueue) {
|
||||
visOutQueue = tQueue;
|
||||
}
|
||||
|
||||
void setCommandQueue(DemodulatorThreadCommandQueue *tQueue) {
|
||||
commandQueue = tQueue;
|
||||
}
|
||||
|
|
@ -71,18 +37,17 @@ public:
|
|||
|
||||
#ifdef __APPLE__
|
||||
static void *pthread_helper(void *context) {
|
||||
return ((DemodulatorThread *) context)->threadMain();
|
||||
return ((DemodulatorPreThread *) context)->threadMain();
|
||||
}
|
||||
#endif
|
||||
|
||||
protected:
|
||||
DemodulatorThreadInputQueue* inputQueue;
|
||||
DemodulatorThreadOutputQueue* visOutQueue;
|
||||
DemodulatorThreadPostInputQueue* postInputQueue;
|
||||
DemodulatorThreadCommandQueue* commandQueue;
|
||||
AudioThreadInputQueue *audioInputQueue;
|
||||
|
||||
firfilt_crcf fir_filter;
|
||||
|
||||
msresamp_crcf resampler;
|
||||
float resample_ratio;
|
||||
|
||||
Loading…
Reference in New Issue