private int WriteAnnotation(TAL annotations)
{
#if TRACE_BYTES
Console.WriteLine("Write position before annotation: " + this.BaseStream.Position);
#endif
var bytesToWrite = TALExtensions.GetBytes(annotations);
#if TRACE_BYTES
Console.WriteLine("Bytes to write: " + bytesToWrite.Length);
#endif
this.Write(bytesToWrite);
#if TRACE_BYTES
Console.WriteLine("Write position after annotation: " + this.BaseStream.Position);
#endif
return(bytesToWrite.Length);
}
/// <summary>
/// Returns a byte array witch represent a TAL format according to
/// https://www.edfplus.info/specs/edfplus.html#annotationssignal section 2.2.2.
/// </summary>
/// <param name="tal"></param>
/// <returns></returns>
public static byte[] GetBytes(this TAL tal)
{
List <byte> result = new List <byte>();
result.AddRange(Encoding.ASCII.GetBytes(tal.StartSecondsString));
if (tal.DurationSecondsString != null)
{
result.Add(TAL.byte_21); //15 in HEX
result.AddRange(Encoding.ASCII.GetBytes(tal.DurationSecondsString));
}
result.Add(TAL.byte_20);
result.AddRange(Encoding.ASCII.GetBytes(tal.AnnotationDescription));
result.Add(TAL.byte_20);
result.Add(TAL.byte_0);
return(result.ToArray());
}