예제 #1
0
        /// <summary>
        /// Process a transport packet.
        /// </summary>
        /// <param name="buffer">The buffer containing the transport packet.</param>
        /// <param name="packet">The transport packet.</param>
        public void ProcessPacket(byte[] buffer, TransportPacket packet)
        {
            if (packet.ErrorIndicator || packet.IsNullPacket)
            {
                return;
            }

            if (!packet.StartIndicator)
            {
                return;
            }

            SIPacket siPacket = new SIPacket();

            siPacket.Process(buffer, packet);

            if (siPacket.DataIndex < siPacket.ByteData.Length)
            {
                addTable((int)siPacket.ByteData[siPacket.DataIndex]);
            }
        }
예제 #2
0
        private SIPacket getPacket(bool needPayloadStart)
        {
            if (eof)
            {
                return(null);
            }

            SIPacket siPacket = null;
            bool     done     = false;

            while (!done)
            {
                if (memoryHandle == 0)
                {
                    bool reply = getMappedMemory();
                    if (!reply)
                    {
                        eof = true;
                        return(null);
                    }
                }

                if (currentOffset > maxOffset)
                {
                    return(null);
                }

                byte[] buffer = new byte[188];
                for (int index = 0; index < 188; index++)
                {
                    buffer[index] = this.buffer[currentPointer + index];
                }

                currentPointer += 188;
                currentOffset  += 188;

                TransportPacket transportPacket = new TransportPacket();
                transportPacket.Process(buffer);

                if (transportPacket.PID == pid)
                {
                    Logger.Instance.Dump("File Packet", buffer, buffer.Length);

                    if (!transportPacket.ErrorIndicator && !transportPacket.IsNullPacket)
                    {
                        if (needPayloadStart)
                        {
                            if (transportPacket.StartIndicator)
                            {
                                done = true;
                            }
                        }
                        else
                        {
                            done = true;
                        }

                        if (done)
                        {
                            siPacket = new SIPacket();
                            siPacket.Process(buffer, transportPacket);
                        }
                    }
                }
            }

            return(siPacket);
        }
예제 #3
0
        private void getSection(BackgroundParameters parameters)
        {
            if (siPacket == null)
            {
                siPacket = getPacket(true);
                if (siPacket == null)
                {
                    return;
                }

                if (parameters.Table != 0xff && parameters.Table != siPacket.ByteData[siPacket.DataIndex])
                {
                    siPacket = null;
                    return;
                }

                packetIndex = siPacket.DataIndex;
            }

            if (packetIndex > siPacket.ByteData.Length - 1)
            {
                siPacket = getPacket(false);
                if (siPacket == null)
                {
                    Thread.Sleep(500);
                    return;
                }
                packetIndex = siPacket.DataIndex;
            }

            byte table = siPacket.ByteData[packetIndex];

            if (table == 0xff)
            {
                siPacket = null;
                return;
            }

            if (packetIndex == siPacket.ByteData.Length - 1)
            {
                siPacket = getPacket(false);
                if (siPacket == null)
                {
                    Thread.Sleep(500);
                    return;
                }
                packetIndex = siPacket.Index;
            }
            else
            {
                packetIndex++;
            }

            byte lengthByte1 = siPacket.ByteData[packetIndex];

            if (packetIndex == siPacket.ByteData.Length - 1)
            {
                siPacket = getPacket(false);
                if (siPacket == null)
                {
                    Thread.Sleep(500);
                    return;
                }
                packetIndex = siPacket.Index;
            }
            else
            {
                packetIndex++;
            }

            byte lengthByte2 = siPacket.ByteData[packetIndex];

            packetIndex++;

            int length = ((lengthByte1 & 0x0f) * 256) + lengthByte2;

            mpeg2Section = new Mpeg2Section();

            mpeg2Section.Data   = new byte[length + 3];
            mpeg2Section.Length = length + 3;

            mpeg2Section.Data[0] = table;
            mpeg2Section.Data[1] = lengthByte1;
            mpeg2Section.Data[2] = lengthByte2;

            for (int index = 3; index < length + 3; index++)
            {
                if (packetIndex == siPacket.ByteData.Length)
                {
                    siPacket = getPacket(false);
                    if (siPacket == null)
                    {
                        Thread.Sleep(500);
                        return;
                    }
                    packetIndex = siPacket.Index;
                }
                mpeg2Section.Data[index] = siPacket.ByteData[packetIndex];
                packetIndex++;
            }

            if ((mpeg2Section.Data[1] & 0x80) == 1)
            {
                bool checkCRC = mpeg2Section.CheckCRC();
                if (!checkCRC)
                {
                    return;
                }
            }

            Logger.Instance.Dump("MPEG2 Section", mpeg2Section.Data, mpeg2Section.Data.Length);

            Lock("GetSection");
            if (Sections.Count < parameters.MaxSections)
            {
                Sections.Add(mpeg2Section);
            }
            Release("GetSection");
        }
예제 #4
0
        private void processNewSection(byte[] byteData, TransportPacket transportPacket, Collection<Mpeg2Section> sections)
        {
            if (RunParameters.Instance.TraceIDs.Contains("PIDHANDLER"))
                Logger.Instance.Write(getPidID() + "Processing new section");

            if (siPacket == null)
            {
                siPacket = new SIPacket();
                siPacket.Process(byteData, transportPacket);
                packetIndex = siPacket.DataIndex;
            }

            table = siPacket.ByteData[packetIndex];
            if (table == 0xff)
            {
                if (RunParameters.Instance.TraceIDs.Contains("PIDHANDLER"))
                    Logger.Instance.Write(getPidID() + "Table: 0xff - rest of block ignored");
                packetIndex = siPacket.ByteData.Length;
                status = handlerStatus.awaitingStart;
                return;
            }

            if (RunParameters.Instance.TraceIDs.Contains("PIDHANDLER"))
                Logger.Instance.Write(getPidID() + "Table: 0x" + table.ToString("X"));

            packetIndex++;

            if (packetIndex == siPacket.ByteData.Length)
            {
                status = handlerStatus.awaitingLengthByte1;
                return;
            }

            lengthByte1 = siPacket.ByteData[packetIndex];
            if (RunParameters.Instance.TraceIDs.Contains("PIDHANDLER"))
                Logger.Instance.Write(getPidID() + "Length byte 1: " + lengthByte1);

            packetIndex++;

            if (packetIndex == siPacket.ByteData.Length)
            {
                status = handlerStatus.awaitingLengthByte2;
                return;
            }

            lengthByte2 = siPacket.ByteData[packetIndex];
            packetIndex++;
            if (RunParameters.Instance.TraceIDs.Contains("PIDHANDLER"))
                Logger.Instance.Write(getPidID() + "Length byte 2: " + lengthByte2);

            length = ((lengthByte1 & 0x0f) * 256) + lengthByte2;
            if (RunParameters.Instance.TraceIDs.Contains("PIDHANDLER"))
                Logger.Instance.Write(getPidID() + "Table length: " + length);

            createMpeg2Section(sections);
        }
예제 #5
0
        /// <summary>
        /// Process a sample.
        /// </summary>
        /// <param name="byteData">The sample data.</param>
        /// <param name="transportPacket">The transport packet header.</param>
        public void Process(byte[] byteData, TransportPacket transportPacket)
        {
            if (RunParameters.Instance.TraceIDs.Contains("PIDHANDLER"))
            {
                Logger.Instance.Dump(getPidID() + "Data Block", byteData, byteData.Length);
                Logger.Instance.Write(getPidID() + "Status: " + status);
            }

            if (continuityCount == -1)
                continuityCount = transportPacket.ContinuityCount;
            else
            {
                continuityCount++;
                if (continuityCount > 15)
                    continuityCount = 0;
                if (transportPacket.ContinuityCount != continuityCount)
                {
                    if (RunParameters.Instance.TraceIDs.Contains("PIDHANDLER"))
                        Logger.Instance.Write(getPidID() + "Continuity count failure: " + continuityCount + ":" + transportPacket.ContinuityCount);
                    continuityCount = transportPacket.ContinuityCount;
                    status = handlerStatus.awaitingStart;
                    discontinuities++;
                }
            }

            if (empty)
            {
                sections.Clear();
                empty = false;
            }

            bool done = false;

            siPacket = new SIPacket();
            siPacket.Process(byteData, transportPacket);

            if (RunParameters.Instance.TraceIDs.Contains("PIDHANDLERSI"))
                Logger.Instance.Write(getPidID() + "Created new SI packet");

            switch (status)
            {
                case handlerStatus.awaitingStart:
                    if (!transportPacket.StartIndicator)
                    {
                        if (RunParameters.Instance.TraceIDs.Contains("PIDHANDLER"))
                            Logger.Instance.Write(getPidID() + "Not start block");
                        return;
                    }

                    packetIndex = siPacket.DataIndex;

                    while (packetIndex < siPacket.ByteData.Length)
                        processNewSection(byteData, transportPacket, sections);

                    break;
                case handlerStatus.awaitingLengthByte1:
                    packetIndex = siPacket.Index;

                    lengthByte1 = siPacket.ByteData[packetIndex];
                    if (packetIndex == siPacket.ByteData.Length - 1)
                    {
                        status = handlerStatus.awaitingLengthByte2;
                        return;
                    }

                    packetIndex++;

                    lengthByte2 = siPacket.ByteData[packetIndex];
                    packetIndex++;

                    length = ((lengthByte1 & 0x0f) * 256) + lengthByte2;

                    done = createMpeg2Section(sections);
                    if (!done)
                        return;

                    status = handlerStatus.awaitingStart;

                    while (packetIndex < siPacket.ByteData.Length)
                        processNewSection(byteData, transportPacket, sections);

                    break;
                case handlerStatus.awaitingLengthByte2:
                    packetIndex = siPacket.Index;

                    lengthByte2 = siPacket.ByteData[packetIndex];
                    packetIndex++;

                    length = ((lengthByte1 & 0x0f) * 256) + lengthByte2;

                    done = createMpeg2Section(sections);
                    if (!done)
                        return;

                    status = handlerStatus.awaitingStart;

                    while (packetIndex < siPacket.ByteData.Length)
                        processNewSection(byteData, transportPacket, sections);

                    break;
                case handlerStatus.awaitingMoreData:
                    packetIndex = siPacket.Index;

                    for (; sectionIndex < length + 3; sectionIndex++)
                    {
                        if (packetIndex == siPacket.ByteData.Length)
                        {
                            if (RunParameters.Instance.TraceIDs.Contains("PIDHANDLER"))
                                Logger.Instance.Write(getPidID() + "Need more data");
                            status = handlerStatus.awaitingMoreData;
                            return;
                        }

                        mpeg2Section.Data[sectionIndex] = siPacket.ByteData[packetIndex];
                        packetIndex++;
                    }

                    if (RunParameters.Instance.TraceIDs.Contains("PIDHANDLER"))
                        Logger.Instance.Write(getPidID() + "Got table");

                    if ((mpeg2Section.Data[1] & 0x80) != 0)
                    {
                        bool checkCRC = mpeg2Section.CheckCRC();
                        if (!checkCRC)
                        {
                            if (RunParameters.Instance.TraceIDs.Contains("PIDHANDLER"))
                                Logger.Instance.Write(getPidID() + "CRC failed");
                        }
                        else
                        {
                            sections.Add(mpeg2Section);
                            if (RunParameters.Instance.TraceIDs.Contains("PIDHANDLER"))
                                Logger.Instance.Dump(getPidID() + "MPEG2 Section", mpeg2Section.Data, mpeg2Section.Data.Length);
                        }
                    }
                    else
                    {
                        sections.Add(mpeg2Section);
                        if (RunParameters.Instance.TraceIDs.Contains("PIDHANDLER"))
                            Logger.Instance.Dump(getPidID() + "MPEG2 Section", mpeg2Section.Data, mpeg2Section.Data.Length);
                    }

                    status = handlerStatus.awaitingStart;

                    while (packetIndex < siPacket.ByteData.Length)
                        processNewSection(byteData, transportPacket, sections);

                    break;
                default:
                    break;
            }

            siPacket = null;
        }
예제 #6
0
        private void processNewSection(byte[] byteData, TransportPacket transportPacket, Collection <Mpeg2Section> sections)
        {
            if (RunParameters.Instance.TraceIDs.Contains("PIDHANDLER"))
            {
                Logger.Instance.Write(getPidID() + "Processing new section");
            }

            if (siPacket == null)
            {
                siPacket = new SIPacket();
                siPacket.Process(byteData, transportPacket);
                packetIndex = siPacket.DataIndex;
            }

            table = siPacket.ByteData[packetIndex];
            if (table == 0xff)
            {
                if (RunParameters.Instance.TraceIDs.Contains("PIDHANDLER"))
                {
                    Logger.Instance.Write(getPidID() + "Table: 0xff - rest of block ignored");
                }
                packetIndex = siPacket.ByteData.Length;
                status      = handlerStatus.awaitingStart;
                return;
            }

            if (RunParameters.Instance.TraceIDs.Contains("PIDHANDLER"))
            {
                Logger.Instance.Write(getPidID() + "Table: 0x" + table.ToString("X"));
            }

            packetIndex++;

            if (packetIndex == siPacket.ByteData.Length)
            {
                status = handlerStatus.awaitingLengthByte1;
                return;
            }

            lengthByte1 = siPacket.ByteData[packetIndex];
            if (RunParameters.Instance.TraceIDs.Contains("PIDHANDLER"))
            {
                Logger.Instance.Write(getPidID() + "Length byte 1: " + lengthByte1);
            }

            packetIndex++;

            if (packetIndex == siPacket.ByteData.Length)
            {
                status = handlerStatus.awaitingLengthByte2;
                return;
            }

            lengthByte2 = siPacket.ByteData[packetIndex];
            packetIndex++;
            if (RunParameters.Instance.TraceIDs.Contains("PIDHANDLER"))
            {
                Logger.Instance.Write(getPidID() + "Length byte 2: " + lengthByte2);
            }

            length = ((lengthByte1 & 0x0f) * 256) + lengthByte2;
            if (RunParameters.Instance.TraceIDs.Contains("PIDHANDLER"))
            {
                Logger.Instance.Write(getPidID() + "Table length: " + length);
            }

            createMpeg2Section(sections);
        }
예제 #7
0
        /// <summary>
        /// Process a sample.
        /// </summary>
        /// <param name="byteData">The sample data.</param>
        /// <param name="transportPacket">The transport packet header.</param>
        public void Process(byte[] byteData, TransportPacket transportPacket)
        {
            if (RunParameters.Instance.TraceIDs.Contains("PIDHANDLER"))
            {
                Logger.Instance.Dump(getPidID() + "Data Block", byteData, byteData.Length);
                Logger.Instance.Write(getPidID() + "Status: " + status);
            }

            if (continuityCount == -1)
            {
                continuityCount = transportPacket.ContinuityCount;
            }
            else
            {
                continuityCount++;
                if (continuityCount > 15)
                {
                    continuityCount = 0;
                }
                if (transportPacket.ContinuityCount != continuityCount)
                {
                    if (RunParameters.Instance.TraceIDs.Contains("PIDHANDLER"))
                    {
                        Logger.Instance.Write(getPidID() + "Continuity count failure: " + continuityCount + ":" + transportPacket.ContinuityCount);
                    }
                    continuityCount = transportPacket.ContinuityCount;
                    status          = handlerStatus.awaitingStart;
                    discontinuities++;
                }
            }

            if (empty)
            {
                sections.Clear();
                empty = false;
            }

            bool done = false;

            siPacket = new SIPacket();
            siPacket.Process(byteData, transportPacket);

            if (RunParameters.Instance.TraceIDs.Contains("PIDHANDLERSI"))
            {
                Logger.Instance.Write(getPidID() + "Created new SI packet");
            }

            switch (status)
            {
            case handlerStatus.awaitingStart:
                if (!transportPacket.StartIndicator)
                {
                    if (RunParameters.Instance.TraceIDs.Contains("PIDHANDLER"))
                    {
                        Logger.Instance.Write(getPidID() + "Not start block");
                    }
                    return;
                }

                packetIndex = siPacket.DataIndex;

                while (packetIndex < siPacket.ByteData.Length)
                {
                    processNewSection(byteData, transportPacket, sections);
                }

                break;

            case handlerStatus.awaitingLengthByte1:
                packetIndex = siPacket.Index;

                lengthByte1 = siPacket.ByteData[packetIndex];
                if (packetIndex == siPacket.ByteData.Length - 1)
                {
                    status = handlerStatus.awaitingLengthByte2;
                    return;
                }

                packetIndex++;

                lengthByte2 = siPacket.ByteData[packetIndex];
                packetIndex++;

                length = ((lengthByte1 & 0x0f) * 256) + lengthByte2;

                done = createMpeg2Section(sections);
                if (!done)
                {
                    return;
                }

                status = handlerStatus.awaitingStart;

                while (packetIndex < siPacket.ByteData.Length)
                {
                    processNewSection(byteData, transportPacket, sections);
                }

                break;

            case handlerStatus.awaitingLengthByte2:
                packetIndex = siPacket.Index;

                lengthByte2 = siPacket.ByteData[packetIndex];
                packetIndex++;

                length = ((lengthByte1 & 0x0f) * 256) + lengthByte2;

                done = createMpeg2Section(sections);
                if (!done)
                {
                    return;
                }

                status = handlerStatus.awaitingStart;

                while (packetIndex < siPacket.ByteData.Length)
                {
                    processNewSection(byteData, transportPacket, sections);
                }

                break;

            case handlerStatus.awaitingMoreData:
                packetIndex = siPacket.Index;

                for (; sectionIndex < length + 3; sectionIndex++)
                {
                    if (packetIndex == siPacket.ByteData.Length)
                    {
                        if (RunParameters.Instance.TraceIDs.Contains("PIDHANDLER"))
                        {
                            Logger.Instance.Write(getPidID() + "Need more data");
                        }
                        status = handlerStatus.awaitingMoreData;
                        return;
                    }

                    mpeg2Section.Data[sectionIndex] = siPacket.ByteData[packetIndex];
                    packetIndex++;
                }

                if (RunParameters.Instance.TraceIDs.Contains("PIDHANDLER"))
                {
                    Logger.Instance.Write(getPidID() + "Got table");
                }

                if ((mpeg2Section.Data[1] & 0x80) != 0)
                {
                    bool checkCRC = mpeg2Section.CheckCRC();
                    if (!checkCRC)
                    {
                        if (RunParameters.Instance.TraceIDs.Contains("PIDHANDLER"))
                        {
                            Logger.Instance.Write(getPidID() + "CRC failed");
                        }
                    }
                    else
                    {
                        sections.Add(mpeg2Section);
                        if (RunParameters.Instance.TraceIDs.Contains("PIDHANDLER"))
                        {
                            Logger.Instance.Dump(getPidID() + "MPEG2 Section", mpeg2Section.Data, mpeg2Section.Data.Length);
                        }
                    }
                }
                else
                {
                    sections.Add(mpeg2Section);
                    if (RunParameters.Instance.TraceIDs.Contains("PIDHANDLER"))
                    {
                        Logger.Instance.Dump(getPidID() + "MPEG2 Section", mpeg2Section.Data, mpeg2Section.Data.Length);
                    }
                }

                status = handlerStatus.awaitingStart;

                while (packetIndex < siPacket.ByteData.Length)
                {
                    processNewSection(byteData, transportPacket, sections);
                }

                break;

            default:
                break;
            }

            siPacket = null;
        }
예제 #8
0
        private SIPacket getPacket(bool needPayloadStart)
        {
            if (eof)
            {
                return(null);
            }

            SIPacket siPacket = null;
            bool     done     = false;

            while (!done)
            {
                if (fileStream == null)
                {
                    fileStream = new FileStream(fileName, FileMode.Open, FileAccess.Read, FileShare.Read);
                }

                byte[] buffer    = new byte[188];
                int    readCount = fileStream.Read(buffer, 0, 188);
                if (readCount < 188)
                {
                    fileStream.Close();
                    eof = true;
                    return(null);
                }

                blockCount++;

                if (RunParameters.Instance.TraceIDs.Contains("TSFILEPACKETS"))
                {
                    Logger.Instance.Dump("File Packet " + blockCount, buffer, buffer.Length);
                }

                TransportPacket transportPacket = new TransportPacket();

                try
                {
                    transportPacket.Process(buffer);

                    if (!transportPacket.ErrorIndicator && !transportPacket.IsNullPacket)
                    {
                        if (pids == null || (pids != null && pids.Contains((short)transportPacket.PID)))
                        {
                            if (RunParameters.Instance.TraceIDs.Contains("TSPIDPACKETS"))
                            {
                                Logger.Instance.Dump("File Packet", buffer, buffer.Length);
                            }

                            if (needPayloadStart)
                            {
                                if (transportPacket.StartIndicator)
                                {
                                    continuityCount = transportPacket.ContinuityCount;
                                    done            = true;
                                }
                            }
                            else
                            {
                                if (continuityCount == 15)
                                {
                                    continuityCount = 0;
                                }
                                else
                                {
                                    continuityCount++;
                                }

                                if (transportPacket.ContinuityCount == continuityCount)
                                {
                                    done = true;
                                }
                                else
                                {
                                    if (RunParameters.Instance.TraceIDs.Contains("CONTINUITYERRORS"))
                                    {
                                        Logger.Instance.Write("Continuity error: expected " + continuityCount + " got " + transportPacket.ContinuityCount);
                                    }
                                    needPayloadStart = true;
                                    return(null);
                                }
                            }

                            if (done)
                            {
                                siPacket = new SIPacket();
                                siPacket.Process(buffer, transportPacket);
                            }
                        }
                    }
                }
                catch (ArgumentOutOfRangeException)
                {
                    /*Logger.Instance.Write("Failed to parse transport packet");*/
                }
            }

            return(siPacket);
        }
예제 #9
0
        private void getSection(BackgroundParameters parameters)
        {
            if (siPacket == null)
            {
                siPacket = getPacket(true);
                if (siPacket == null)
                {
                    Thread.Sleep(500);
                    return;
                }

                packetIndex = siPacket.DataIndex;
            }

            if (packetIndex > siPacket.ByteData.Length - 1)
            {
                siPacket = null;
                return;
            }

            byte table = siPacket.ByteData[packetIndex];
            if (table == 0xff)
            {
                siPacket = null;
                return;
            }

            if (packetIndex == siPacket.ByteData.Length - 1)
            {
                siPacket = getPacket(false);
                if (siPacket == null)
                {
                    Thread.Sleep(500);
                    return;
                }
                packetIndex = siPacket.Index;
            }
            else
                packetIndex++;

            byte lengthByte1 = siPacket.ByteData[packetIndex];

            if (packetIndex == siPacket.ByteData.Length - 1)
            {
                siPacket = getPacket(false);
                if (siPacket == null)
                {
                    Thread.Sleep(500);
                    return;
                }
                packetIndex = siPacket.Index;
            }
            else
                packetIndex++;

            byte lengthByte2 = siPacket.ByteData[packetIndex];
            packetIndex++;

            int length = ((lengthByte1 & 0x0f) * 256) + lengthByte2;

            if (length < 2)
            {
                packetIndex += length;
                return;
            }

            if (tables != null && !tables.Contains(table))
            {
                packetIndex += length;
                return;
            }

            mpeg2Section = new Mpeg2Section();

            mpeg2Section.Data = new byte[length + 3];
            mpeg2Section.Length = length + 3;

            mpeg2Section.Data[0] = table;
            mpeg2Section.Data[1] = lengthByte1;
            mpeg2Section.Data[2] = lengthByte2;

            for (int index = 3; index < length + 3; index++)
            {
                if (packetIndex == siPacket.ByteData.Length)
                {
                    siPacket = getPacket(false);
                    if (siPacket == null)
                    {
                        Thread.Sleep(500);
                        return;
                    }
                    packetIndex = siPacket.Index;
                }
                mpeg2Section.Data[index] = siPacket.ByteData[packetIndex];
                packetIndex++;
            }

            if ((mpeg2Section.Data[1] & 0x80) == 1)
            {
                bool checkCRC = mpeg2Section.CheckCRC();
                if (!checkCRC)
                    return;
            }

            Lock("GetSection");
            if (Sections.Count < parameters.MaxSections)
                Sections.Add(mpeg2Section);
            Release("GetSection");
        }
예제 #10
0
        private SIPacket getPacket(bool needPayloadStart)
        {
            if (eof)
                return (null);

            SIPacket siPacket = null;
            bool done = false;

            while (!done)
            {
                if (fileStream == null)
                    fileStream = new FileStream(fileName, FileMode.Open, FileAccess.Read, FileShare.Read);

                byte[] buffer = new byte[188];
                int readCount = fileStream.Read(buffer, 0, 188);
                if (readCount < 188)
                {
                    fileStream.Close();
                    eof = true;
                    return (null);
                }

                blockCount++;

                if (RunParameters.Instance.TraceIDs.Contains("TSFILEPACKETS"))
                    Logger.Instance.Dump("File Packet " + blockCount, buffer, buffer.Length);

                TransportPacket transportPacket = new TransportPacket();

                try
                {
                    transportPacket.Process(buffer);

                    if (!transportPacket.ErrorIndicator && !transportPacket.IsNullPacket)
                    {
                        if (pids == null || (pids != null && pids.Contains((short)transportPacket.PID)))
                        {
                            if (RunParameters.Instance.TraceIDs.Contains("TSPIDPACKETS"))
                                Logger.Instance.Dump("File Packet", buffer, buffer.Length);

                            if (needPayloadStart)
                            {
                                if (transportPacket.StartIndicator)
                                {
                                    continuityCount = transportPacket.ContinuityCount;
                                    done = true;
                                }
                            }
                            else
                            {
                                if (continuityCount == 15)
                                    continuityCount = 0;
                                else
                                    continuityCount++;

                                if (transportPacket.ContinuityCount == continuityCount)
                                    done = true;
                                else
                                {
                                    if (RunParameters.Instance.TraceIDs.Contains("CONTINUITYERRORS"))
                                        Logger.Instance.Write("Continuity error: expected " + continuityCount + " got " + transportPacket.ContinuityCount);
                                    needPayloadStart = true;
                                    return (null);
                                }
                            }

                            if (done)
                            {
                                siPacket = new SIPacket();
                                siPacket.Process(buffer, transportPacket);
                            }
                        }
                    }
                }
                catch (ArgumentOutOfRangeException)
                {
                    /*Logger.Instance.Write("Failed to parse transport packet");*/
                }
            }

            return (siPacket);
        }
예제 #11
0
        private SIPacket getPacket(bool needPayloadStart)
        {
            if (eof)
                return (null);

            SIPacket siPacket = null;
            bool done = false;

            while (!done)
            {
                if (memoryHandle == 0)
                {
                    bool reply = getMappedMemory();
                    if (!reply)
                    {
                        eof = true;
                        return(null);
                    }
                }

                if (currentOffset > maxOffset)
                    return (null);

                byte[] buffer = new byte[188];
                for (int index = 0; index < 188; index++)
                    buffer[index] = this.buffer[currentPointer + index];

                currentPointer += 188;
                currentOffset += 188;

                TransportPacket transportPacket = new TransportPacket();
                transportPacket.Process(buffer);

                if (transportPacket.PID == pid)
                {
                    Logger.Instance.Dump("File Packet", buffer, buffer.Length);

                    if (!transportPacket.ErrorIndicator && !transportPacket.IsNullPacket)
                    {
                        if (needPayloadStart)
                        {
                            if (transportPacket.StartIndicator)
                                done = true;
                        }
                        else
                            done = true;

                        if (done)
                        {
                            siPacket = new SIPacket();
                            siPacket.Process(buffer, transportPacket);
                        }
                    }
                }
            }

            return (siPacket);
        }
예제 #12
0
        /// <summary>
        /// Process a transport packet.
        /// </summary>
        /// <param name="buffer">The buffer containing the transport packet.</param>
        /// <param name="packet">The transport packet.</param>
        public void ProcessPacket(byte[] buffer, TransportPacket packet)
        {
            if (packet.ErrorIndicator || packet.IsNullPacket)
                return;

            if (!packet.StartIndicator)
                return;

            SIPacket siPacket = new SIPacket();
            siPacket.Process(buffer, packet);

            if (siPacket.DataIndex < siPacket.ByteData.Length)
                addTable((int)siPacket.ByteData[siPacket.DataIndex]);
        }