Ejemplo n.º 1
0
        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;
        }
Ejemplo n.º 2
0
 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;
 }
Ejemplo n.º 3
0
 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;
 }
Ejemplo n.º 4
0
 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;
 }
Ejemplo n.º 5
0
 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;
 }
Ejemplo n.º 6
0
 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);
 }
Ejemplo n.º 7
0
        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);
        }
Ejemplo n.º 8
0
        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;
        }
Ejemplo n.º 9
0
        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);
        }
Ejemplo n.º 10
0
        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;
        }