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169 lines (160 loc) · 4.55 KB
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#include "EmotivSensor.h"
//#define EPOC__
using namespace SensorLib;
EmotivSensor::EmotivSensor(void) {
type = EEG;
#ifdef EPOC__
name = "EPOC";
device = EMOTIV;
#else
name = "Insight";
device = EMOTIV;
#endif
status = NOT_CONNECTED;
lslrunning = false;
#ifdef EPOC__
numChannels = 14;
#else
numChannels = 10;
#endif
samplingRate = 128;
}
EmotivSensor::~EmotivSensor(void) {
}
SensorStatus EmotivSensor::getStatus() {
return status;
}
void EmotivSensor::connect() {
status = BUSY;
lslrunning = true;
lsl_thread = new std::thread(&EmotivSensor::lsl_worker,this);
}
void EmotivSensor::disconnect() {
lslrunning = false;
}
void EmotivSensor::lsl_worker() {
#ifdef EPOC__
IEE_DataChannel_t EpocChannelList[] = {
IED_COUNTER, IED_INTERPOLATED,
IED_AF3, IED_F7, IED_F3, IED_FC5, IED_T7,
IED_P7, IED_O1, IED_O2, IED_P8, IED_T8,
IED_FC6, IED_F4, IED_F8, IED_AF4, IED_RAW_CQ,
IED_GYROX, IED_GYROY, IED_MARKER, IED_TIMESTAMP
};
#else
IEE_DataChannel_t InsightChannelList[] = {
IED_COUNTER,
IED_INTERPOLATED,
IED_RAW_CQ,
IED_AF3,
IED_T7,
IED_Pz,
IED_T8,
IED_AF4,
IED_TIMESTAMP,
IED_MARKER,
IED_SYNC_SIGNAL
};
#endif
const char header[] = " IED_COUNTER, IED_INTERPOLATED, IED_AF3, IED_F7, IED_F3, IED_FC5, IED_T7, "
"IED_P7, IED_O1, IED_O2, IED_P8, IED_T8, IED_FC6, IED_F4, IED_F8, IED_AF4, IED_RAW_CQ, "
"IED_GYROX, IED_GYROY, IED_MARKER, IED_TIMESTAMP ";
const char* channels[] = { "AF3", "F7", "F3", "FC5", "T7", "P7", "O1", "O2", "P8", "T8", "FC6", "F4", "F8", "AF4" };
#ifdef EPOC__
//EPOC
const int channelids[14] = { 2,3,4,5,6,7,8,9,10,11,12,13,14,15 };
const int channellength = 14;
#else
//INSIGHT
const int channelids[11] = {0,1,2,3,4,5,6,7,8,9};
const int channellength = 10;
#endif
int state = 0;
EmoEngineEventHandle eEvent = IEE_EmoEngineEventCreate();
EmoStateHandle eState = IEE_EmoStateCreate();
bool readytocollect = false;
unsigned int userID = 0;
float secs = 1;
if (IEE_EngineConnect() != EDK_OK) {
std::cerr << "Emotiv Driver start up failed." << std::endl;
status = ERR;
return;
}
DataHandle hData = IEE_DataCreate();
try {
IEE_DataSetBufferSizeInSec(secs);
}
catch (const std::runtime_error& e) {
std::cerr << e.what() << std::endl;
status = ERR;
return;
}
#ifdef EPOC__
lsl::stream_info outletInfo("EPOC", "Markers", numChannels, samplingRate, lsl::cf_float32, "unid4457");
#else
lsl::stream_info outletInfo("Insight", "Markers", numChannels, samplingRate, lsl::cf_float32, "unid4457");
#endif
outletInfo.desc().append_child_value("manufacturer", "Emotiv");
lsl::xml_element chns = outletInfo.desc().append_child("channels");
for (int i = 0; i < channellength; i++) {
chns.append_child("channel")
.append_child_value("label", channels[i])
.append_child_value("unit", "microvolts")
.append_child_value("type", "EEG");
}
lsl::stream_outlet outlet(outletInfo);
//while(false){
while (lslrunning) {
state = IEE_EngineGetNextEvent(eEvent);
if (state == EDK_OK) {
IEE_Event_t eventType = IEE_EmoEngineEventGetType(eEvent);
IEE_EmoEngineEventGetUserId(eEvent, &userID);
if (eventType == IEE_UserAdded) {
std::cout << "User added" << std::endl;
status = CONNECTED;
IEE_DataAcquisitionEnable(userID, true);
readytocollect = true;
}
}
if (readytocollect) {
IEE_DataUpdateHandle(0, hData);
unsigned int nSamplesTaken = 0;
IEE_DataGetNumberOfSample(hData, &nSamplesTaken);
//std::cout << "Updated " << nSamplesTaken << std::endl;
if (nSamplesTaken != 0) {
double* data = new double[nSamplesTaken];
for (int sampleIdx = 0; sampleIdx < (int)nSamplesTaken; ++sampleIdx) {
std::vector<double> samplevec;
/*for (int i = 0; i < sizeof(EpocChannelList) / sizeof(IEE_DataChannel_t); i++) {
IEE_DataGet(hData, EpocChannelList[i], data, nSamplesTaken);
samplevec.push_back(data[sampleIdx]);
}*/
for (int i = 0; i < channellength; i++) {
// std::cout << "id = " << EpocChannelList[channzids[i]] << std::endl;
#ifdef EPOC__
IEE_DataGet(hData, EpocChannelList[channelids[i]], data, nSamplesTaken);
#else
IEE_DataGet(hData, InsightChannelList[channelids[i]], data, nSamplesTaken);
#endif
samplevec.push_back(data[sampleIdx]);
}
// system("pause");
// std::cout << "test" << std::endl;
if (nSamplesTaken > 0) {
status = STREAMING;
}
outlet.push_sample(samplevec);
}
delete[] data;
}
Sleep(1);
}
if (!readytocollect)
Sleep(5000);
}
status = BUSY;
IEE_EngineDisconnect();
IEE_EmoStateFree(eState);
IEE_EmoEngineEventFree(eEvent);
status = NOT_CONNECTED;
}