/// <summary>
/// Gets the length of the signal.
/// </summary>
/// <param name="unisensxml">The unisensxml.</param>
/// <param name="selectedsignals">The selectedsignals.</param>
/// <returns>length of the signal</returns>
private static double GetSignalLength(XDocument unisensxml, IEnumerable <XElement> selectedsignals)
{
double length = -1;
try
{
XElement unisens = unisensxml.Root;
if (unisens != null)
{
XAttribute duration = unisens.Attribute("duration");
length = double.Parse(duration.Value, System.Globalization.CultureInfo.InvariantCulture);
}
}
catch (Exception)
{
foreach (XElement xe in selectedsignals)
{
// no DURATION attribut existent -> calculate duration (in seconds) with length of signal entry
switch (xe.Name.LocalName)
{
case "signalEntry":
case "valuesEntry":
case "customEntry":
// length = length_of_file / (bytes_per_sample * number_of_channels * sample_rate)
if (SignalEntry.GetFileFormat(xe) == FileFormat.Bin)
{
length = new FileInfo(SignalEntry.GetId(xe)).Length /
(SignalEntry.GetDataTypeBytes(SignalEntry.GetBinDataType(xe)) *
MeasurementEntry.GetNumChannels(xe) *
MeasurementEntry.GetSampleRate(xe));
}
break;
}
// Exit the foreach loop when length is calculated
if (length > 0)
{
break;
}
}
}
if (length < 0)
{
throw new Exception("Cannot cut a file without duration information");
}
return(length);
}
public static double GetSignalLength(XDocument unisensxml, IEnumerable <XElement> selectedsignals)
{
double length = 0;
try
{
XElement xUnisens = unisensxml.Root;
if (xUnisens != null)
{
length = double.Parse(xUnisens.Attribute("duration").Value);
}
}
catch (Exception e)
{
foreach (XElement xe in selectedsignals)
{
// no DURATION attribut existent -> calculate duration (in seconds) with length of signal entry
switch (xe.Name.LocalName)
{
case "signalEntry":
// length = length_of_file / (bytes_per_sample * number_of_channels * sample_rate)
length = new FileInfo(SignalEntry.GetId(xe)).Length /
(SignalEntry.GetDataTypeBytes(SignalEntry.GetBinDataType(xe)) *
MeasurementEntry.GetNumChannels(xe) *
MeasurementEntry.GetSampleRate(xe));
break;
}
// Exit the foreach loop when length is calculated
if (length > 0)
{
break;
}
}
}
return(length);
}
