Now that properties are in the MachineInfo record, we don't need
to call PeekProperties a second time to fill out the machine
record.
Also remove some unused variables and methods from class definition.
Also move some previously static functions into their associated classes,
which lets us remove a few unnecessary wrapper functions used for testing.
No change in functionality.
Use git blame dd9a087 to follow the history before this refactoring.
The VS2 channel is unique in that it only appears (as a flag)
when there are nonzero snores during a 2-minute period. However, the
VS index isn't the number of events (nonzero intervals) per hour,
but rather the number of snores per hour.
No real change to functionality, other than confirming correct behavior,
documenting observed data and adding flags for anything new.
The ParseHumidifierSettingF0V4 function has now been renamed to
ParseHumidifierSetting60Series for accuracy.
Accordingly update ParseHumidifierSetting50Series to add a parameter
controlling whether parsed settings should be imported or not,
consistent with all other PRS1 humidifier parsers.
The ParseHumidifierSettingV2 function has now been renamed to
ParseHumidifierSetting50Series for accuracy, and the code and
parameters which had been used when 60-Series machines (incorrectly)
relied on it has been removed.
The last statistics events in each slice are now correctly imported.
Previously, in the surprising edge case where two statistic periods are
reported with the same end-of-slice timestamp, they were both being duplicated
when marking the end of the slice.
Also, there were scattered instances where the final statistics in a slice
weren't being imported at all or were being imported incorrectly. These are
now fixed as well.
This was bumped once already after the previous release version, but
bumping it again now will make sure that all beta testers are working
from data based on the current state of the PRS1 loader.
This now correctly shows gaps in therapy and statistics when the
mask is off. It also corrects the initial statistics for some sessions
to 1 second later, when the initial mask-on slice begins 1 second
after the session starts.
Weird zero-length PB and LL events are now dropped on import, since
they wouldn't get drawn anyway and seem to be peculiar artifacts.
Because summaries used to be parsed incorrectly, there was a bunch of ugly
logic that was designed to infer the session start & end times from other data.
Now that the summary parsers work, that can all go away. The only change to
imported data is that sessions ending with the mask off are now longer, to
reflect that extra time before the machine was turned off.
This now correctly shows gaps in therapy and statistics when the
mask is off. It currently only works for F3V3, since it has a
separate event chunk per slice. Other machines, which have only
a single large event chunk, will need to track the slices as
they import events.
This also highlights the issue with the last statistics in a
slice: only one data point is imported indicating the start of
a measured value, and so it appears that the data terminates then
instead of at the end of the slice (seconds to minutes later).
This will let us create "duplicate" statistical events at the end of
a session (and eventually slice) to reflect the end time of each
measurement channel.
Occasionally waveforms in a DreamStation session can be split into
multiple files. This behavior resulted in a report of missing waveform
data, and upon investigation was found 15 times out of 10,000 sample
sessions.
It looks like this happens when the machine begins writing the waveform
file before realizing that it will hit its 500-file-per-directory limit
for the remaining session files, at which point it appears to write
the rest of the waveform data along with the summary and event files
in the next directory.
The previous commit added better testing support and warning messages
for when this is encountered. This commit fixes the issue, and so
the warning is no longer necessary.
Also warn when waveform files are being skipped on import due to this
kind of splitting.
The chunks YAML now emits all unique chunks found in files with the
same session ID.
Note that a single file can contain multiple chunks covering multiple
sessions. These will all be saved in the YAML file corresponding to the
original file's name, rather than the session ID encoded in any chunk.
This slight discrepancy is intentional, since the chunk YAML is meant
to test the parsers, to verify that they correctly decode a specific
input file. When importing data into a session, we use the actual
session ID specified by each chunk. Thus the session YAML files will
be derived from the proper chunks, regardless of their original
containing file. (Well, except for waveforms, but they don't appear
to have more than one session ID per file.)
F3V3 events are formatted as waveforms (rather than a series of timestamped
events), with one chunk per mask-on slice. The previous assumption of only
a single event chunk per session meant that all events after the first slice
were getting dropped.
BiPAP AVAPS 30 (System One 60 Series) now works much better, although the data
doesn't yet show any gaps where the mask is off. Fixing that requires changes
throughout the code and not just in the PRS1 loader.
Also, LL calculation seems wrong. Perhaps the automatic calculation of
unintentional leak from total leak doesn't work for AVAPS, throwing off
automatic LL calculation? (F3V3 reports neither unintentional leakage nor
large leak events.)
