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Split PRS1 oximetry data so that invalid samples show up as gaps on the charts.

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This commit is contained in:
sawinglogz 2020-01-28 17:36:02 -05:00
parent 15e6f1eadf
commit 077f51178f
1 changed files with 36 additions and 9 deletions
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39
oscar/SleepLib/loader_plugins/prs1_loader.cpp
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@ -7829,21 +7829,48 @@ void PRS1Import::ImportOximetryChannel(ChannelID channel, QByteArray & data, qui
if (data.size() == 0)
return;
// TODO: Split eventlist on invalid values (255)
for (int i=0; i < data.size(); i++) {
unsigned char value = data.data()[i];
unsigned char* raw = (unsigned char*) data.data();
qint64 step = dur / data.size();
CHECK_VALUE(dur % data.size(), 0);
if (value == 255) continue;
bool pending_samples = false;
quint64 start_ti;
int start_i;
// Split eventlist on invalid values (255)
for (int i=0; i < data.size(); i++) {
unsigned char value = raw[i];
bool valid = (value != 255);
if (valid) {
if (pending_samples == false) {
pending_samples = true;
start_i = i;
start_ti = ti;
}
if (channel == OXI_Pulse) {
if (value > 200) UNEXPECTED_VALUE(value, "<= 200 bpm");
} else {
if (value > 100) UNEXPECTED_VALUE(value, "<= 100%");
}
} else {
if (pending_samples) {
// Create the pending event list
EventList* el = session->AddEventList(channel, EVL_Waveform, 1.0, 0.0, 0.0, 0.0, step);
el->AddWaveform(start_ti, &raw[start_i], i - start_i, ti - start_ti);
pending_samples = false;
}
}
ti += step;
}
EventList * el = session->AddEventList(channel, EVL_Waveform, 1.0, 0.0, 0.0, 0.0, dur / data.size());
el->AddWaveform(ti, (unsigned char *)data.data(), data.size(), dur);
if (pending_samples) {
// Create the pending event list
EventList* el = session->AddEventList(channel, EVL_Waveform, 1.0, 0.0, 0.0, 0.0, step);
el->AddWaveform(start_ti, &raw[start_i], data.size() - start_i, ti - start_ti);
pending_samples = false;
}
}