private float[] ReadSignalFile(string fileName)
{
var signalSamples = new List <float>();
if (File.Exists(fileName))
{
string ext = Path.GetExtension(fileName).Replace(".", "");
if (ext.ToUpper() == "CSV" || ext.ToUpper() == "TXT")
{
using (var reader = new StreamReader(fileName)) {
string line;
while ((line = reader.ReadLine()) != null)
{
float sample;
if (float.TryParse(line, out sample))
{
signalSamples.Add(sample);
}
}
}
}
if (ext.ToUpper() == "EDF")
{
var edfFile = new EDFFile();
edfFile.Open(fileName);
if (edfFile.Signals.Length >= 1)
{
for (int i = 0; i < edfFile.Signals[0].Samples.Length; i++)
{
//NOTE: Resolution may be different for each ECG sensor
float resolution = 1.8f;
var sample = edfFile.Signals[0].Samples[i] * resolution;
signalSamples.Add(sample);
}
}
}
}
return(signalSamples.ToArray());
}
static void Main(string[] args)
{
//Example1_Create_And_Save_EDF();
//if(args.Length >= 1)
//Example2_Read_EDF_From_Base64(args[0]);
// Read and dump some data
if (args.Count() == 0)
{
Console.WriteLine("Error: Expecting path to folder as argument!");
// Exit code?
return;
}
string filepath = args[0];
DirectoryInfo d = new DirectoryInfo(filepath);
foreach (FileInfo fileInfo in d.GetFiles("*.edf"))
{
Console.WriteLine("======== EDF: " + fileInfo.Name + "========");
DateTime mark = DateTime.Now;
//
EDFFile edf = null;
int signalIndex = -1;
if (args.Count() == 1)
{
// No signal index specified, read the whole file
edf = new EDFFile(fileInfo.FullName);
}
else
{
// Signal specified, just read that one signal
using (edf = new EDFFile())
{
edf.Open(fileInfo.FullName);
// Read specified signals
for (int i = 1; i < args.Count(); i++)
{
Console.WriteLine("Reading signal: " + args[i]);
EDF.Signal signal = edf.ReadSignal(args[i]);
if (signal == null)
{
Console.WriteLine("ERROR: Signal " + args[i] + " not found");
}
}
}
}
// Print loading time
TimeSpan runTime = DateTime.Now - mark;
Console.WriteLine("Load time: " + runTime.TotalSeconds.ToString("0.00") + " s");
// Print headers
Console.WriteLine(edf.Header.ToString());
// Print signals intro
if (signalIndex < 0)
{
// Print all signal
foreach (EDF.Signal s in edf.Signals)
{
Console.WriteLine(s.ToString());
}
}
else
{
// Print the signal we loaded
Console.WriteLine(edf.Signals[signalIndex].ToString());
}
Console.WriteLine("=========================================\n");
//Console.WriteLine("Scaled sample test: " + edf.Signals[31].ScaledSample(0));
//TODO: Test saving files, I guess we would need to fix recording writing function
}
Console.ReadLine();
}