public virtual IEnumerable <byte[]> Iterator(int[] apids, Int64 startTime, Int64 stopTime, long skip = 0L)
{
var counter = 0L;
foreach (var p in Iterator())
{
var timestamp = PacketAccessor.Time42(p);
if (timestamp < startTime || timestamp > stopTime)
{
continue;
}
var apid = PacketAccessor.APID(p);
var len = apids.Length;
for (var i = 0; i < len; i++)
{
if (apid == apids[i])
{
if (counter++ >= skip)
{
yield return(p);
}
break;
}
}
}
}
public virtual IEnumerable <byte[]> Iterator(Int64 startTime, Int64 stopTime)
{
return(from p in Iterator()
let timestamp = PacketAccessor.Time42(p)
where timestamp >= startTime && timestamp <= stopTime
select p);
}
public IEnumerable <byte[]> Iterator(int[] apids, Int64 startTime, Int64 stopTime, long skip = 0L)
{
var counter = 0L;
return(from p in Iterator()
let timestamp = PacketAccessor.Time42(p)
let apid = PacketAccessor.APID(p)
where startTime <= timestamp && timestamp <= stopTime && apids.Contains(apid) && counter++ > skip
select p);
//return Iterator();
}
public void CheckPacketLength(byte[] packet, int packetPtr)
{
var len = PacketAccessor.PacketFixedHeaderLength + 1 + PacketAccessor.Length(packet);
//if (len != packetPtr)
// throw new Exception("Packet Length Check Exception");
if (len != packetPtr)
{
Console.Error.WriteLine(@"Packet length check exception: apid={0} timestamp={1}", PacketAccessor.APID(packet),
PacketAccessor.Time42(packet));
}
}
public IEnumerable <byte[]> Iterator(Int64 startTime, Int64 stopTime)
{
//foreach (byte[] p in Iterator())
//{
// var timestamp = PacketAccessor.Time42(p);
// if (startTime <= timestamp && timestamp <= stopTime) yield return p;
//}
return(from p in Iterator()
let timestamp = PacketAccessor.Time42(p)
where startTime <= timestamp && timestamp <= stopTime
select p);
/*
* Console.WriteLine("startTime={0} stopTime={1}", startTime, stopTime);
* Console.WriteLine("startTime={0} stopTime={1}", TimeUtilities.Time42ToString(startTime), TimeUtilities.Time42ToString(stopTime));
* foreach (byte[] p in Iterator())
* {
* var timestamp = PacketAccessor.Time42(p);
* if (startTime <= timestamp && timestamp <= stopTime)
* yield return p;
* }
*/
}
// This calculates that start, stop and a pseudo-start that's after 2014 (heuristically trying to find
// times when the clock had been jammed).
public void LoadStats()
{
var jamfilter = TimeUtilities.DateTimeToTime42(new DateTime(2014, 1, 1));
//var endFilter = TimeUtilities.DateTimeToTime42(new DateTime(2018, 1, 1));
const long endFilter = 37226859724800L;
try
{
var dict = new Dictionary <int, int>();
var begin = Int64.MaxValue;
var jam = Int64.MaxValue;
var end = Int64.MinValue;
var count = 0;
foreach (var packet in Iterator())
{
count++;
var apid = PacketAccessor.APID(packet);
var timestamp = PacketAccessor.Time42(packet);
if (timestamp == 0L)
{
continue; // ignore CLCW packets, no timestamp
}
if (timestamp < begin)
{
begin = timestamp;
}
if (timestamp < endFilter)
{
if (timestamp > end)
{
end = timestamp;
}
if (timestamp < jam && timestamp > jamfilter)
{
jam = timestamp;
}
}
int prev;
if (dict.TryGetValue(apid, out prev))
{
dict[apid] = prev + 1;
}
else
{
dict.Add(apid, 1);
}
}
if (count > 0)
{
_BeginTime42 = begin;
_EndTime42 = end;
_BeginTime42Jammed = jam == long.MaxValue ? jamfilter : jam;
}
else
{
_BeginTime42 = 0L;
_EndTime42 = 0L;
_BeginTime42Jammed = 0L;
}
_PacketCount = count;
_isFullyReadable = true;
_ApidCount = dict;
_Changed = true;
_BeginString = TimeUtilities.Time42ToString(_BeginTime42);
_EndString = TimeUtilities.Time42ToString(_EndTime42);
_JammedString = TimeUtilities.Time42ToString(_BeginTime42Jammed);
//Console.WriteLine("b={0}\nj={1}\ne={2} f={3}", _BeginString, _JammedString, _EndString, Name);
}
catch (Exception e1)
{
Console.WriteLine(e1);
Console.WriteLine(e1.StackTrace);
_isFullyReadable = false;
}
/* Console.WriteLine(Path);
* var a = _PacketCount;
* var b = Iterator().Count();
* var c = _ApidCount.Sum(pair => pair.Value);
*
* Console.WriteLine("_PacketCount={0}", a);
* Console.WriteLine("Actual={0}", b);
* Console.WriteLine("_ApidCount={0}",c);
* if (a != b || b != c)
* Console.WriteLine("friday");
* //todo*/
}