/// <summary>
/// Reads a FIT binary file.
/// </summary>
/// <param name="fitStream">Seekable (file)stream to parse.</param>
/// <returns>
/// Returns true if reading finishes successfully.
/// </returns>
public bool Read(Stream fitStream)
{
bool readOK = true;
try
{
// Attempt to read header
fileHeader = new Header(fitStream);
readOK &= fileHeader.IsValid();
if (!readOK)
{
throw new FitException("FIT decode error: File is not FIT format. Check file header data type.");
}
if ((fileHeader.ProtocolVersion & Fit.ProtocolVersionMajorMask) > (Fit.ProtocolMajorVersion << Fit.ProtocolVersionMajorShift))
{
// The decoder does not support decode accross protocol major revisions
throw new FitException(String.Format("FIT decode error: Protocol Version {0}.X not supported by SDK Protocol Ver{1}.{2} ", (fileHeader.ProtocolVersion & Fit.ProtocolVersionMajorMask) >> Fit.ProtocolVersionMajorShift, Fit.ProtocolMajorVersion, Fit.ProtocolMinorVersion));
}
// Read data messages and definitions
while (fitStream.Position < fitStream.Length - 2)
{
DecodeNextMessage(fitStream);
}
// Is the file CRC ok?
byte[] data = new byte[fitStream.Length];
fitStream.Position = 0;
fitStream.Read(data, 0, data.Length);
readOK &= (CRC.Calc16(data, data.Length) == 0x0000);
}
catch (EndOfStreamException e)
{
readOK = false;
Debug.WriteLine("{0} caught and ignored. ", e.GetType().Name);
throw new FitException("Decode:Read - Unexpected End of File", e);
}
return(readOK);
}