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Add support for PRS1 sessions with oximetry data split between files.

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This commit is contained in:
sawinglogz 2020-04-29 10:22:12 -04:00
parent 6261752022
commit 5f0960aa4d
2 changed files with 34 additions and 32 deletions
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60
oscar/SleepLib/loader_plugins/prs1_loader.cpp
View File

@ -982,12 +982,9 @@ void PRS1Loader::ScanFiles(const QStringList & paths, int sessionid_base, Machin
// All samples exhibiting this behavior are DreamStations.
task->m_wavefiles.append(fi.canonicalFilePath());
} else if (ext == 6) {
if (!task->oxifile.isEmpty()) {
qDebug() << sid << "already has oximetry file" << relativePath(task->oxifile)
<< "skipping" << relativePath(fi.canonicalFilePath());
continue;
}
task->oxifile = fi.canonicalFilePath();
// Oximetry data can also be split into multiple files, see waveform
// comment above.
task->m_oxifiles.append(fi.canonicalFilePath());
}
continue;
@ -8413,7 +8410,7 @@ bool PRS1Import::ParseSession(void)
// If are no mask-on slices, then there's not any meaningful event or waveform data for the session.
// If there's no no event or waveform data, mark this session as a summary.
if (session->m_slices.count() == 0 || (m_event_chunks.count() == 0 && m_wavefiles.isEmpty() && oxifile.isEmpty())) {
if (session->m_slices.count() == 0 || (m_event_chunks.count() == 0 && m_wavefiles.isEmpty() && m_oxifiles.isEmpty())) {
session->setSummaryOnly(true);
save = true;
break; // and skip the occasional fragmentary event or waveform data
@ -8430,13 +8427,26 @@ bool PRS1Import::ParseSession(void)
if (!m_wavefiles.isEmpty()) {
// Parse .005 Waveform files
ImportWaveforms();
waveforms = ReadWaveformData(m_wavefiles, "Waveform");
if (session->eventlist.contains(CPAP_FlowRate)) {
if (waveforms.size() > 0) {
// Delete anything called "Flow rate" picked up in the events file if high-resolution data is present
// TODO: Is this still used anywhere?
qWarning() << session->session() << "Deleting flow rate events due to flow rate waveform data";
session->destroyEvent(CPAP_FlowRate);
}
}
// Extract raw data into channels.
ParseWaveforms();
}
if (!oxifile.isEmpty()) {
// Parse .006 Waveform file
oximetry = loader->ParseFile(oxifile);
oximetry = CoalesceWaveformChunks(oximetry);
if (!m_oxifiles.isEmpty()) {
// Parse .006 Waveform files
oximetry = ReadWaveformData(m_oxifiles, "Oximetry");
// Extract raw data into channels.
ParseOximetry();
}
@ -8447,16 +8457,17 @@ bool PRS1Import::ParseSession(void)
}
void PRS1Import::ImportWaveforms()
QList<PRS1DataChunk *> PRS1Import::ReadWaveformData(QList<QString> & files, const char* label)
{
QMap<qint64,PRS1DataChunk *> waveform_chunks;
QList<PRS1DataChunk *> result;
if (m_wavefiles.count() > 1) {
qDebug() << session->session() << "Waveform data split across multiple files";
if (files.count() > 1) {
qDebug() << session->session() << label << "data split across multiple files";
}
for (auto & f : m_wavefiles) {
// Parse a single .005 Waveform file
for (auto & f : files) {
// Parse a single .005 or .006 waveform file
QList<PRS1DataChunk *> file_chunks = loader->ParseFile(f);
for (auto & chunk : file_chunks) {
PRS1DataChunk* previous = waveform_chunks[chunk->timestamp];
@ -8471,21 +8482,12 @@ void PRS1Import::ImportWaveforms()
}
// Get the list of pointers sorted by timestamp.
waveforms = waveform_chunks.values();
result = waveform_chunks.values();
// Coalesce contiguous waveform chunks into larger chunks.
waveforms = CoalesceWaveformChunks(waveforms);
result = CoalesceWaveformChunks(result);
if (session->eventlist.contains(CPAP_FlowRate)) {
if (waveforms.size() > 0) {
// Delete anything called "Flow rate" picked up in the events file if real data is present
qWarning() << session->session() << "Deleting flow rate events due to flow rate waveform data";
session->destroyEvent(CPAP_FlowRate);
}
}
// Extract raw data into channels.
ParseWaveforms();
return result;
}

6
oscar/SleepLib/loader_plugins/prs1_loader.h
View File

@ -295,7 +295,7 @@ public:
QList<QString> m_wavefiles;
QString oxifile;
QList<QString> m_oxifiles;
//! \brief Imports .000 files for bricks.
bool ImportCompliance();
@ -306,8 +306,8 @@ public:
//! \brief Imports the .002 event file(s).
bool ImportEvents();
//! \brief Imports the .005 event file(s).
void ImportWaveforms();
//! \brief Reads the .005 or .006 waveform file(s).
QList<PRS1DataChunk *> ReadWaveformData(QList<QString> & files, const char* label);
//! \brief Coalesce contiguous .005 or .006 waveform chunks from the file into larger chunks for import.
QList<PRS1DataChunk *> CoalesceWaveformChunks(QList<PRS1DataChunk *> & allchunks);