private void CheckPtsDts(TsHeader header, byte[] tsPacket, ref PidInfo pi)
{
if (!pi.shouldCheck)
{
return;
}
ulong offset = PacketContainsPtsDts(header, tsPacket, ref pi);
if (offset == 0)
{
return;
}
Pcr pts; Pcr dts;
PcrUtils.DecodePtsDts(tsPacket, offset, out pts, out dts);
if (pi.lastPts.isValid)
{
TimeSpan diff = pts.ToDateTime() - pi.lastPts.ToDateTime();
if (diff.TotalSeconds > diffAllowed)
{
pi.ptsErrorTexts.Add("last pts: " + pi.lastPts.ToDateTime().ToString("HH:MM:ss") + " current pts: " + pts.ToDateTime().ToString("HH:MM:ss"));
totalPtsErrors++;
}
}
pi.lastPts = pts;
}
private ulong PacketContainsPtsDts(TsHeader header, byte[] tsPacket, ref PidInfo pi)
{
if (!header.PayloadUnitStart)
return 0;
if (header.PayLoadStart > 185 && header.HasPayload)
{
totalPayloadStartErrors++;
pi.payloadStartErrorTexts.Add(" payloadStart=" + header.PayLoadStart.ToString() + " HasAdaption=" + header.HasAdaptionField.ToString() + " HasPayload=" + header.HasPayload.ToString() + " AdaptionFieldSize=" + tsPacket[4].ToString());
return 0;
}
if (!header.HasPayload)
return 0;
return header.PayLoadStart;
}
private void CheckPcr(TsHeader header, byte[] tsPacket, ref PidInfo pi)
{
if (!pi.shouldCheck) return;
if (!PacketContainsPcr(header, tsPacket)) return;
Pcr pcr = new Pcr(tsPacket);
if (pi.lastPcr.isValid)
{
TimeSpan diff = pcr.ToDateTime() - pi.lastPcr.ToDateTime();
if (diff.TotalSeconds > diffAllowed)
{
pi.pcrErrorTexts.Add("last pcr: " + pi.lastPcr.ToDateTime().ToString("HH:MM:ss") + " current pcr: " + pcr.ToDateTime().ToString("HH:MM:ss"));
totalPcrErrors++;
}
}
pi.lastPcr = pcr;
}
private bool CheckContinuityCounter(byte cc, ref PidInfo pi)
{
bool isOk = true;
if (pi.continuityCounter != 0xFF)
{
byte expected = (byte)(pi.continuityCounter + 1);
if (expected == 16) expected = 0;
if (cc != expected)
{
totalCCErrors++;
isOk = false;
}
}
pi.continuityCounter = cc;
return isOk;
}
private void CheckPtsDts(TsHeader header, byte[] tsPacket, ref PidInfo pi)
{
if (!pi.shouldCheck) return;
ulong offset = PacketContainsPtsDts(header, tsPacket, ref pi);
if (offset == 0) return;
Pcr pts; Pcr dts;
PcrUtils.DecodePtsDts(tsPacket, offset, out pts, out dts);
if (pi.lastPts.isValid)
{
TimeSpan diff = pts.ToDateTime() - pi.lastPts.ToDateTime();
if (diff.TotalSeconds > diffAllowed)
{
pi.ptsErrorTexts.Add("last pts: " + pi.lastPts.ToDateTime().ToString("HH:MM:ss") + " current pts: " + pts.ToDateTime().ToString("HH:MM:ss"));
totalPtsErrors++;
}
}
pi.lastPts = pts;
}
private ulong PacketContainsPtsDts(TsHeader header, byte[] tsPacket, ref PidInfo pi)
{
if (!header.PayloadUnitStart)
{
return(0);
}
if (header.PayLoadStart > 185 && header.HasPayload)
{
totalPayloadStartErrors++;
pi.payloadStartErrorTexts.Add(" payloadStart=" + header.PayLoadStart.ToString() + " HasAdaption=" + header.HasAdaptionField.ToString() + " HasPayload=" + header.HasPayload.ToString() + " AdaptionFieldSize=" + tsPacket[4].ToString());
return(0);
}
if (!header.HasPayload)
{
return(0);
}
return(header.PayLoadStart);
}
private bool CheckContinuityCounter(byte cc, ref PidInfo pi)
{
bool isOk = true;
if (pi.continuityCounter != 0xFF)
{
byte expected = (byte)(pi.continuityCounter + 1);
if (expected == 16)
{
expected = 0;
}
if (cc != expected)
{
totalCCErrors++;
isOk = false;
}
}
pi.continuityCounter = cc;
return(isOk);
}
public void ProcessPacket(byte[] tsPacket, TsHeader header)
{
if (header.TransportError)
{
droppedPackets++;
return;
}
if (!pids.ContainsKey(header.Pid))
{
pids.Add(header.Pid, new PidInfo());
}
PidInfo pi = pids[header.Pid];
CheckContinuityCounter((byte)(tsPacket[3] & 0xF), ref pi);
if (header.Pid > 0x1f) // don't check pids which contain SI information
{
CheckPcr(header, tsPacket, ref pi);
CheckPtsDts(header, tsPacket, ref pi);
}
pids[header.Pid] = pi;
}
public string GetErrorDetails()
{
string log = "";
foreach (ushort pid in pids.Keys)
{
if (pids[pid].HasErrors())
{
PidInfo pi = pids[pid];
log += "Pid 0x" + pid.ToString("x") + Environment.NewLine;
if (pi.pcrErrorTexts.Count > 0)
{
log += " - pcr errors=" + pi.pcrErrorTexts.Count.ToString() + Environment.NewLine;
foreach (string s in pi.pcrErrorTexts)
{
log = " ->" + s + Environment.NewLine;
}
}
if (pi.ptsErrorTexts.Count > 0)
{
log += " - pts errors=" + pi.ptsErrorTexts.Count.ToString() + Environment.NewLine;
foreach (string s in pi.ptsErrorTexts)
{
log += " ->" + s + Environment.NewLine;
}
}
if (pi.payloadStartErrorTexts.Count > 0)
{
log += " - payloadStart errors=" + pi.payloadStartErrorTexts.Count.ToString() + Environment.NewLine;
foreach (string s in pi.payloadStartErrorTexts)
{
log += " ->" + s + Environment.NewLine;
}
}
}
}
return(log);
}
private void CheckPcr(TsHeader header, byte[] tsPacket, ref PidInfo pi)
{
if (!pi.shouldCheck)
{
return;
}
if (!PacketContainsPcr(header, tsPacket))
{
return;
}
Pcr pcr = new Pcr(tsPacket);
if (pi.lastPcr.isValid)
{
TimeSpan diff = pcr.ToDateTime() - pi.lastPcr.ToDateTime();
if (diff.TotalSeconds > diffAllowed)
{
pi.pcrErrorTexts.Add("last pcr: " + pi.lastPcr.ToDateTime().ToString("HH:MM:ss") + " current pcr: " + pcr.ToDateTime().ToString("HH:MM:ss"));
totalPcrErrors++;
}
}
pi.lastPcr = pcr;
}