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Merge pull request #651 from cjcliffe/firpbch2_mode

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Firpbch2 support and SDRPostThread clean-up
This commit is contained in:
Charles J. Cliffe 2018-05-07 22:20:46 -04:00 committed by GitHub
commit 462da6cdf7
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3 changed files with 328 additions and 245 deletions
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1
src/AppFrame.cpp
View File

@ -2252,7 +2252,6 @@ void AppFrame::OnIdle(wxIdleEvent& event) {
}
wproc->setView(waterfallCanvas->getViewState(), waterfallCanvas->getCenterFrequency(), waterfallCanvas->getBandwidth());
wxGetApp().getSDRPostThread()->setIQVisualRange(waterfallCanvas->getCenterFrequency(), waterfallCanvas->getBandwidth());
proc->setView(wproc->isView(), wproc->getCenterFrequency(), wproc->getBandwidth());

533
src/sdr/SDRPostThread.cpp
View File

@ -19,40 +19,29 @@ SDRPostThread::SDRPostThread() : IOThread(), buffers("SDRPostThreadBuffers"), vi
numChannels = 0;
channelizer = nullptr;
channelizer2 = nullptr;
// Channel mode default temporary for testing
chanMode = 1;
lastChanMode = 0;
sampleRate = 0;
visFrequency.store(0);
visBandwidth.store(0);
doRefresh.store(false);
dcFilter = iirfilt_crcf_create_dc_blocker(0.0005f);
}
SDRPostThread::~SDRPostThread() {
}
void SDRPostThread::notifyDemodulatorsChanged() {
doRefresh.store(true);
}
void SDRPostThread::initPFBChannelizer() {
// std::cout << "Initializing post-process FIR polyphase filterbank channelizer with " << numChannels << " channels." << std::endl;
if (channelizer) {
firpfbch_crcf_destroy(channelizer);
}
channelizer = firpfbch_crcf_create_kaiser(LIQUID_ANALYZER, numChannels, 4, 60);
chanBw = (sampleRate / numChannels);
chanCenters.resize(numChannels+1);
demodChannelActive.resize(numChannels+1);
// std::cout << "Channel bandwidth spacing: " << (chanBw) << std::endl;
}
// Update the active list of demodulators for handling
void SDRPostThread::updateActiveDemodulators() {
// In range?
@ -111,8 +100,8 @@ void SDRPostThread::updateActiveDemodulators() {
}
}
void SDRPostThread::resetAllDemodulators() {
//retreive the current list of demodulators:
auto demodulators = wxGetApp().getDemodMgr().getDemodulators();
@ -122,9 +111,11 @@ void SDRPostThread::resetAllDemodulators() {
demod->getIQInputDataPipe()->flush();
}
doRefresh = true;
doRefresh.store(true);
}
// Update the channel positions and frequencies
void SDRPostThread::updateChannels() {
// calculate channel center frequencies, todo: cache
for (int i = 0; i < numChannels/2; i++) {
@ -135,6 +126,8 @@ void SDRPostThread::updateChannels() {
chanCenters[numChannels] = frequency + (sampleRate/2);
}
// Find the channelizer channel that corresponds to the given frequency
int SDRPostThread::getChannelAt(long long frequency) {
int chan = -1;
long long minDelta = sampleRate;
@ -148,11 +141,17 @@ int SDRPostThread::getChannelAt(long long frequency) {
return chan;
}
void SDRPostThread::setIQVisualRange(long long frequency, int bandwidth) {
visFrequency.store(frequency);
visBandwidth.store(bandwidth);
void SDRPostThread::setChannelizerType(SDRPostThreadChannelizerType chType) {
chanMode.store((int)chType);
}
SDRPostThreadChannelizerType SDRPostThread::getChannelizerType() {
return (SDRPostThreadChannelizerType) chanMode.load();
}
void SDRPostThread::run() {
#ifdef __APPLE__
pthread_t tID = pthread_self(); // ID of this thread
@ -178,8 +177,15 @@ void SDRPostThread::run() {
bool doUpdate = false;
if (data_in && data_in->data.size()) {
pushVisualData(data_in.get());
if(data_in->numChannels > 1) {
runPFBCH(data_in.get());
if (chanMode == 1) {
runPFBCH(data_in.get());
} else if (chanMode == 2) {
runPFBCH2(data_in.get());
}
} else {
runSingleCH(data_in.get());
}
@ -193,8 +199,9 @@ void SDRPostThread::run() {
}
//Only update the list of demodulators here
if (doUpdate || doRefresh) {
if (doUpdate || doRefresh.load()) {
updateActiveDemodulators();
doRefresh.store(false);
}
} //end while
@ -216,109 +223,8 @@ void SDRPostThread::terminate() {
iqActiveDemodVisualQueue->flush();
}
void SDRPostThread::runSingleCH(SDRThreadIQData *data_in) {
if (sampleRate != data_in->sampleRate) {
sampleRate = data_in->sampleRate;
numChannels = 1;
doRefresh.store(true);
}
size_t dataSize = data_in->data.size();
size_t outSize = data_in->data.size();
if (outSize > dataOut.capacity()) {
dataOut.reserve(outSize);
}
if (outSize != dataOut.size()) {
dataOut.resize(outSize);
}
if (frequency != data_in->frequency) {
frequency = data_in->frequency;
doRefresh.store(true);
}
if (doRefresh.load()) {
updateActiveDemodulators();
doRefresh.store(false);
}
size_t refCount = runDemods.size();
bool doIQDataOut = (iqDataOutQueue != nullptr && !iqDataOutQueue->full());
bool doDemodVisOut = (runDemods.size() > 0 && iqActiveDemodVisualQueue != nullptr && !iqActiveDemodVisualQueue->full());
bool doVisOut = (iqVisualQueue != nullptr && !iqVisualQueue->full());
if (doIQDataOut) {
refCount++;
}
if (doDemodVisOut) {
refCount++;
}
if (doVisOut) {
refCount++;
}
if (refCount) {
DemodulatorThreadIQDataPtr demodDataOut = buffers.getBuffer();
demodDataOut->frequency = frequency;
demodDataOut->sampleRate = sampleRate;
if (demodDataOut->data.size() != dataSize) {
if (demodDataOut->data.capacity() < dataSize) {
demodDataOut->data.reserve(dataSize);
}
demodDataOut->data.resize(dataSize);
}
iirfilt_crcf_execute_block(dcFilter, &data_in->data[0], dataSize, &demodDataOut->data[0]);
if (doDemodVisOut) {
//VSO: blocking push
iqActiveDemodVisualQueue->push(demodDataOut);
}
if (doIQDataOut) {
//VSO: blocking push
iqDataOutQueue->push(demodDataOut);
}
if (doVisOut) {
//VSO: blocking push
iqVisualQueue->push(demodDataOut);
}
for (size_t i = 0; i < runDemods.size(); i++) {
// try-push() : we do our best to only stimulate active demods, but some could happen to be dead, full, or indeed non-active.
//so in short never block here no matter what.
if (!runDemods[i]->getIQInputDataPipe()->try_push(demodDataOut)) {
// std::cout << "SDRPostThread::runSingleCH() attempt to push into demod '" << runDemods[i]->getLabel()
// << "' (" << runDemods[i]->getFrequency() << " Hz) failed, demod is either too busy, not-active, or dead..." << std::endl << std::flush;
std::this_thread::yield();
}
}
}
}
void SDRPostThread::runPFBCH(SDRThreadIQData *data_in) {
if (numChannels != data_in->numChannels || sampleRate != data_in->sampleRate) {
numChannels = data_in->numChannels;
sampleRate = data_in->sampleRate;
initPFBChannelizer();
doRefresh.store(true);
}
size_t dataSize = data_in->data.size();
size_t outSize = data_in->data.size();
if (outSize > dataOut.capacity()) {
dataOut.reserve(outSize);
}
if (outSize != dataOut.size()) {
dataOut.resize(outSize);
}
// Push visual data; i.e. Main Waterfall (all frames) and Spectrum (active frame)
void SDRPostThread::pushVisualData(SDRThreadIQData *data_in) {
if (iqDataOutQueue != nullptr && !iqDataOutQueue->full()) {
DemodulatorThreadIQDataPtr iqDataOut = visualDataBuffers.getBuffer();
@ -330,124 +236,287 @@ void SDRPostThread::runPFBCH(SDRThreadIQData *data_in) {
iqDataOut->frequency = data_in->frequency;
iqDataOut->sampleRate = data_in->sampleRate;
iqDataOut->data.assign(data_in->data.begin(), data_in->data.begin() + dataSize);
iqDataOut->data.assign(data_in->data.begin(), data_in->data.begin() + data_in->data.size());
//VSO: blocking push
iqDataOutQueue->push(iqDataOut);
if (doVis) {
//VSO: blocking push
iqVisualQueue->push(iqDataOut);
}
}
}
// Run without any processing; each demod gets the full SDR bandwidth to handle on it's own
void SDRPostThread::runSingleCH(SDRThreadIQData *data_in) {
bool refreshed = false;
if (frequency != data_in->frequency) {
if (sampleRate != data_in->sampleRate || doRefresh.load()) {
sampleRate = data_in->sampleRate;
numChannels = 1;
refreshed = true;
}
if (refreshed || frequency != data_in->frequency) {
frequency = data_in->frequency;
doRefresh.store(true);
}
if (doRefresh.load()) {
updateActiveDemodulators();
updateChannels();
doRefresh.store(false);
}
DemodulatorInstancePtr activeDemod = wxGetApp().getDemodMgr().getLastActiveDemodulator();
int activeDemodChannel = -1;
size_t outSize = data_in->data.size();
// Find active demodulators
if (runDemods.size() > 0) {
// channelize data
// firpfbch output rate is (input rate / channels)
for (int i = 0, iMax = dataSize; i < iMax; i+=numChannels) {
firpfbch_crcf_analyzer_execute(channelizer, &data_in->data[i], &dataOut[i]);
if (outSize > dataOut.capacity()) {
dataOut.reserve(outSize);
}
if (outSize != dataOut.size()) {
dataOut.resize(outSize);
}
DemodulatorThreadIQDataPtr demodDataOut = buffers.getBuffer();
demodDataOut->frequency = frequency;
demodDataOut->sampleRate = sampleRate;
if (demodDataOut->data.size() != outSize) {
if (demodDataOut->data.capacity() < outSize) {
demodDataOut->data.reserve(outSize);
}
for (int i = 0, iMax = numChannels+1; i < iMax; i++) {
demodChannelActive[i] = 0;
}
// Find nearest channel for each demodulator
for (size_t i = 0; i < runDemods.size(); i++) {
DemodulatorInstancePtr demod = runDemods[i];
demodChannel[i] = getChannelAt(demod->getFrequency());
if (demod == activeDemod) {
activeDemodChannel = demodChannel[i];
}
}
for (size_t i = 0; i < runDemods.size(); i++) {
// cache channel usage refcounts
if (demodChannel[i] >= 0) {
demodChannelActive[demodChannel[i]]++;
}
}
// Run channels
for (int i = 0; i < numChannels+1; i++) {
int doDemodVis = ((activeDemodChannel == i) && (iqActiveDemodVisualQueue != nullptr) && !iqActiveDemodVisualQueue->full())?1:0;
if (!doDemodVis && demodChannelActive[i] == 0) {
continue;
}
DemodulatorThreadIQDataPtr demodDataOut = buffers.getBuffer();
demodDataOut->frequency = chanCenters[i];
demodDataOut->sampleRate = chanBw;
// Calculate channel buffer size
size_t chanDataSize = (outSize/numChannels);
if (demodDataOut->data.size() != chanDataSize) {
if (demodDataOut->data.capacity() < chanDataSize) {
demodDataOut->data.reserve(chanDataSize);
}
demodDataOut->data.resize(chanDataSize);
}
int idx = i;
// Extra channel wraps lower side band of lowest channel
// to fix frequency gap on upper side of spectrum
if (i == numChannels) {
idx = (numChannels/2);
}
// prepare channel data buffer
if (i == 0) { // Channel 0 requires DC correction
if (dcBuf.size() != chanDataSize) {
dcBuf.resize(chanDataSize);
}
for (size_t j = 0; j < chanDataSize; j++) {
dcBuf[j] = dataOut[idx];
idx += numChannels;
}
iirfilt_crcf_execute_block(dcFilter, &dcBuf[0], chanDataSize, &demodDataOut->data[0]);
} else {
for (size_t j = 0; j < chanDataSize; j++) {
demodDataOut->data[j] = dataOut[idx];
idx += numChannels;
}
}
if (doDemodVis) {
//VSO: blocking push
iqActiveDemodVisualQueue->push(demodDataOut);
}
for (size_t j = 0; j < runDemods.size(); j++) {
if (demodChannel[j] == i) {
// try-push() : we do our best to only stimulate active demods, but some could happen to be dead, full, or indeed non-active.
//so in short never block here no matter what.
if (!runDemods[j]->getIQInputDataPipe()->try_push(demodDataOut)) {
// std::cout << "SDRPostThread::runPFBCH() attempt to push into demod '" << runDemods[i]->getLabel()
// << "' (" << runDemods[i]->getFrequency() << " Hz) failed, demod is either too busy, not-active, or dead..." << std::endl << std::flush;
std::this_thread::yield();
}
}
} //end for
demodDataOut->data.resize(outSize);
}
iirfilt_crcf_execute_block(dcFilter, &data_in->data[0], data_in->data.size(), &demodDataOut->data[0]);
if (runDemods.size() > 0 && iqActiveDemodVisualQueue != nullptr && !iqActiveDemodVisualQueue->full()) {
//VSO: blocking push
iqActiveDemodVisualQueue->push(demodDataOut);
}
if (iqDataOutQueue != nullptr && !iqDataOutQueue->full()) {
//VSO: blocking push
iqDataOutQueue->push(demodDataOut);
}
if (iqVisualQueue != nullptr && !iqVisualQueue->full()) {
//VSO: blocking push
iqVisualQueue->push(demodDataOut);
}
for (size_t i = 0; i < runDemods.size(); i++) {
// try-push() : we do our best to only stimulate active demods, but some could happen to be dead, full, or indeed non-active.
//so in short never block here no matter what.
if (!runDemods[i]->getIQInputDataPipe()->try_push(demodDataOut)) {
// std::cout << "SDRPostThread::runSingleCH() attempt to push into demod '" << runDemods[i]->getLabel()
// << "' (" << runDemods[i]->getFrequency() << " Hz) failed, demod is either too busy, not-active, or dead..." << std::endl << std::flush;
std::this_thread::yield();
}
}
}
// Handle active channels, channel 0 offset correction, de-interlacing and push data to demodulators
void SDRPostThread::runDemodChannels(int channelBandwidth) {
DemodulatorInstancePtr activeDemod = wxGetApp().getDemodMgr().getLastActiveDemodulator();
// Calculate channel data size
size_t chanDataSize = dataOut.size()/numChannels;
// Channel for the 'active' demod that's displaying visual data
int activeDemodChannel = -1;
for (int i = 0, iMax = numChannels+1; i < iMax; i++) {
demodChannelActive[i] = 0;
}
// Find nearest channel for each demodulator
for (size_t i = 0; i < runDemods.size(); i++) {
DemodulatorInstancePtr demod = runDemods[i];
demodChannel[i] = getChannelAt(demod->getFrequency());
if (demod == activeDemod) {
activeDemodChannel = demodChannel[i];
}
}
// Count the demods per-channel
for (size_t i = 0; i < runDemods.size(); i++) {
if (demodChannel[i] >= 0) {
demodChannelActive[demodChannel[i]]++;
}
}
// Run channels
for (int i = 0; i < numChannels+1; i++) {
bool doDemodVis = (activeDemodChannel == i) && (iqActiveDemodVisualQueue != nullptr) && !iqActiveDemodVisualQueue->full();
if (!doDemodVis && demodChannelActive[i] == 0) {
// Nothing to do for this channel? continue.
continue;
}
// Get a channel buffer
DemodulatorThreadIQDataPtr demodDataOut = buffers.getBuffer();
demodDataOut->frequency = chanCenters[i];
demodDataOut->sampleRate = channelBandwidth;
// Resize and update capacity of buffer if necessary
if (demodDataOut->data.size() != chanDataSize) {
if (demodDataOut->data.capacity() < chanDataSize) {
demodDataOut->data.reserve(chanDataSize);
}
demodDataOut->data.resize(chanDataSize);
}
// Start copying interleaved data at given channel index
int idx = i;
// Extra channel wraps left side band of lowest channel
// to fix frequency gap on right side of spectrum
if (i == numChannels) {
idx = (numChannels/2);
}
// prepare channel data buffer
if (i == 0) { // Channel 0 requires DC correction
// Update DC Buffer size if needed
if (dcBuf.size() != chanDataSize) {
dcBuf.resize(chanDataSize);
}
// Copy interleaved channel data to dc buffer
for (size_t j = 0; j < chanDataSize; j++) {
dcBuf[j] = dataOut[idx];
idx += numChannels;
}
// Run DC Filter from dcBuf to demod output buffer
iirfilt_crcf_execute_block(dcFilter, &dcBuf[0], chanDataSize, &demodDataOut->data[0]);
} else {
// Copy interleaved channel data to demod output buffer
for (size_t j = 0; j < chanDataSize; j++) {
demodDataOut->data[j] = dataOut[idx];
idx += numChannels;
}
}
if (doDemodVis) {
//VSO: blocking push
iqActiveDemodVisualQueue->push(demodDataOut);
}
for (size_t j = 0; j < runDemods.size(); j++) {
if (demodChannel[j] == i) {
// try-push() : we do our best to only stimulate active demods, but some could happen to be dead, full, or indeed non-active.
//so in short never block here no matter what.
if (!runDemods[j]->getIQInputDataPipe()->try_push(demodDataOut)) {
// std::cout << "SDRPostThread::runPFBCH() attempt to push into demod '" << runDemods[i]->getLabel()
// << "' (" << runDemods[i]->getFrequency() << " Hz) failed, demod is either too busy, not-active, or dead..." << std::endl << std::flush;
std::this_thread::yield();
}
}
} //end for
}
}
void SDRPostThread::initPFBCH() {
// std::cout << "Initializing post-process FIR polyphase filterbank channelizer with " << numChannels << " channels." << std::endl;
if (channelizer) {
firpfbch_crcf_destroy(channelizer);
}
channelizer = firpfbch_crcf_create_kaiser(LIQUID_ANALYZER, numChannels, 4, 60);
chanBw = (sampleRate / numChannels);
chanCenters.resize(numChannels+1);
demodChannelActive.resize(numChannels+1);
// std::cout << "Channel bandwidth spacing: " << (chanBw) << std::endl;
}
void SDRPostThread::runPFBCH(SDRThreadIQData *data_in) {
bool refreshed = false;
if (numChannels != data_in->numChannels || sampleRate != data_in->sampleRate || chanMode != lastChanMode || doRefresh.load()) {
numChannels = data_in->numChannels;
sampleRate = data_in->sampleRate;
initPFBCH();
lastChanMode = 1;
refreshed = true;
}
if (refreshed || frequency != data_in->frequency) {
frequency = data_in->frequency;
updateActiveDemodulators();
updateChannels();
}
size_t outSize = data_in->data.size();
if (outSize > dataOut.capacity()) {
dataOut.reserve(outSize);
}
if (outSize != dataOut.size()) {
dataOut.resize(outSize);
}
// Find active demodulators
if (runDemods.size() > 0) {
// Channelize data
// firpfbch produces [numChannels] interleaved output samples for every [numChannels] samples
for (int i = 0, iMax = data_in->data.size(); i < iMax; i+=numChannels) {
firpfbch_crcf_analyzer_execute(channelizer, &data_in->data[i], &dataOut[i]);
}
runDemodChannels(chanBw);
}
}
void SDRPostThread::initPFBCH2() {
// std::cout << "Initializing post-process FIR polyphase filterbank channelizer with " << numChannels << " channels." << std::endl;
if (channelizer2) {
firpfbch2_crcf_destroy(channelizer2);
}
channelizer2 = firpfbch2_crcf_create_kaiser(LIQUID_ANALYZER, numChannels, 4, 60);
chanBw = (sampleRate / numChannels);
chanCenters.resize(numChannels+1);
demodChannelActive.resize(numChannels+1);
// std::cout << "Channel bandwidth spacing: " << (chanBw) << std::endl;
}
void SDRPostThread::runPFBCH2(SDRThreadIQData *data_in) {
bool refreshed = false;
if (numChannels != data_in->numChannels || sampleRate != data_in->sampleRate || chanMode != lastChanMode || doRefresh.load()) {
numChannels = data_in->numChannels;
sampleRate = data_in->sampleRate;
initPFBCH2();
lastChanMode = 2;
refreshed = true;
}
if (refreshed || frequency != data_in->frequency) {
frequency = data_in->frequency;
updateActiveDemodulators();
updateChannels();
}
size_t outSize = data_in->data.size() * 2;
if (outSize > dataOut.capacity()) {
dataOut.reserve(outSize);
}
if (outSize != dataOut.size()) {
dataOut.resize(outSize);
}
// Find active demodulators
if (runDemods.size() > 0) {
// Channelize data
// firpfbch2 produces [numChannels] interleaved output samples for every [numChannels/2] input samples
for (int i = 0, iMax = data_in->data.size(); i < iMax; i += numChannels/2) {
firpfbch2_crcf_execute(channelizer2, &data_in->data[i], &dataOut[i*2]);
}
runDemodChannels(chanBw * 2);
}
}

39
src/sdr/SDRPostThread.h
View File

@ -6,6 +6,11 @@
#include "SoapySDRThread.h"
#include <algorithm>
enum SDRPostThreadChannelizerType {
SDRPostPFBCH = 1,
SDRPostPFBCH2 = 2
};
class SDRPostThread : public IOThread {
public:
SDRPostThread();
@ -16,10 +21,12 @@ public:
virtual void run();
virtual void terminate();
void runSingleCH(SDRThreadIQData *data_in);
void runPFBCH(SDRThreadIQData *data_in);
void setIQVisualRange(long long frequency, int bandwidth);
void resetAllDemodulators();
void setChannelizerType(SDRPostThreadChannelizerType chType);
SDRPostThreadChannelizerType getChannelizerType();
protected:
SDRThreadIQDataQueuePtr iqDataInQueue;
DemodulatorThreadInputQueuePtr iqDataOutQueue;
@ -28,15 +35,22 @@ protected:
private:
void initPFBChannelizer();
void pushVisualData(SDRThreadIQData *data_in);
void runSingleCH(SDRThreadIQData *data_in);
void runDemodChannels(int channelBandwidth);
void initPFBCH();
void runPFBCH(SDRThreadIQData *data_in);
void initPFBCH2();
void runPFBCH2(SDRThreadIQData *data_in);
void updateActiveDemodulators();
void updateChannels();
void updateChannels();
int getChannelAt(long long frequency);
void resetAllDemodulators();
ReBuffer<DemodulatorThreadIQData> buffers;
std::vector<liquid_float_complex> fpData;
std::vector<liquid_float_complex> dataOut;
std::vector<long long> chanCenters;
long long chanBw = 0;
@ -47,11 +61,12 @@ private:
ReBuffer<DemodulatorThreadIQData> visualDataBuffers;
atomic_bool doRefresh;
atomic_llong visFrequency;
atomic_int visBandwidth;
int numChannels, sampleRate;
atomic_int chanMode;
int numChannels, sampleRate, lastChanMode;
long long frequency;
firpfbch_crcf channelizer;
firpfbch2_crcf channelizer2;
iirfilt_crcf dcFilter;
std::vector<liquid_float_complex> dcBuf;
};