// Implementation
#region Implementation
/// <summary>
/// Constructor
/// </summary>
public RealTimeSignalProcessing(int boardId, int sampleRate, SignalFilter filter, ISignalMontage montage)
{
BoardId = boardId;
NumberOfChannels = BrainhatBoardShim.GetNumberOfExgChannels(BoardId);
SampleRate = sampleRate;
Filter = filter;
Montage = montage;
Name = KeyName((Filter == null ? "" : Filter.Name), Montage.Name);
PeriodMilliseconds = 33;
FilterBufferLength = 10;
ProcessingTimes = new ConcurrentQueue <double>();
FilteredData = new ConcurrentQueue <IBFSample>();
}
//public async Task<SignalFiltering> StartSignalFilteringAsync()
//{
// var filterName = ActiveFilters.FirstOrDefault().Key;
// if (filterName != null)
// return await StartSignalFilteringAsync(filterName);
// return null;
//}
/// <summary>
/// Start the signal filtering task
/// </summary>
public async Task <RealTimeSignalProcessing> StartRealTimeSignalProcessingAsync(SignalFilter filter, ISignalMontage montage)
{
var useMontage = montage;
if (useMontage == null)
{
useMontage = SignalMontages.MakeDefaultMontage(NumberOfChannels);
}
var montageName = useMontage.Name;
var filterName = filter == null ? "XXXDEFAULTXXX" : filter.Name;
if (CancelTokenSource == null)
{
Log?.Invoke(this, new LogEventArgs(Name, this, "StartSignalFiltering", $"You must start the processor first.", LogLevel.ERROR));
return(null);
}
if (ActiveFilters.ContainsKey(RealTimeSignalProcessing.KeyName(filterName, montageName)))
{
return(ActiveFilters[RealTimeSignalProcessing.KeyName(filterName, montageName)]);
}
var newFilter = new RealTimeSignalProcessing(BoardId, SampleRate, filter, useMontage)
{
FilterBufferLength = 30,
};
newFilter.GetRawChunk = GetRawChunk;
newFilter.Log += OnComponentLog;
ActiveFilters.Add(RealTimeSignalProcessing.KeyName(filterName, montageName), newFilter);
await newFilter.StartRealTimeProcessingAsync();
return(newFilter);
}
