/// <summary>
/// Process set recording command
/// </summary>
private async Task <string> ProcessSetRecording(UriArgParser args)
{
try
{
var enable = bool.Parse(args.GetArg("enable"));
var fileName = args.GetArg("filename");
var formatType = args.GetArg("format");
if (BrainflowBoard == null)
{
return($"NAK?response=Board is not reading data.");
}
if (enable)
{
if (FileWriter.IsLogging)
{
return($"NAK?response=You must close the current recording file before starting a new one.");
}
FileWriterType format = FileWriterType.Bdf;
switch (formatType)
{
case "txt":
format = FileWriterType.OpenBciTxt;
break;
case "bdf":
format = FileWriterType.Bdf;
break;
}
var recordingDir = ConfigurationManager.AppSettings.Get("defaultDir");
var path = Path.Combine(Environment.GetFolderPath(Environment.SpecialFolder.Desktop), recordingDir);
await FileWriter.StartWritingToFileAsync(path, fileName, BrainflowBoard.BoardId, BrainflowBoard.SampleRate, format, new FileHeaderInfo()
{
SessionName = fileName
});
return($"ACK?response=File {Path.GetFileName(FileWriter.FileName)} started.");
}
else
{
if (FileWriter != null && !FileWriter.IsLogging)
{
return($"NAK?response=No recording in progress.");
}
await FileWriter.StopWritingToFileAsync();
return($"ACK?response=Recording stopped.");
}
}
catch (Exception)
{
return($"NAK?response=Invalid parameters");
}
}
public async Task StartWritingToFileAsync(string path, string fileNameRoot, int boardId, int sampleRate, FileWriterType format, FileHeaderInfo info)
{
switch (format)
{
case FileWriterType.OpenBciTxt:
{
var newWriter = new OBCIGuiFormatFileWriter(boardId, sampleRate);
newWriter.Log += OnLog;
FileWriter = newWriter;
}
break;
case FileWriterType.Bdf:
{
var newWriter = new BDFFormatFileWriter(boardId, sampleRate);
newWriter.Log += OnLog;
FileWriter = newWriter;
}
break;
}
await FileWriter.StartWritingToFileAsync(path, fileNameRoot, info);
}
