private Collection <Mpeg2Section> getNextSection() { if (!initialized) { initialize(); } if (currentOffset >= maxOffset) { getMaxOffset(); return(null); } byte[] buffer = new byte[188]; Marshal.Copy(currentPointer, buffer, 0, 188); currentPointer = new IntPtr(currentPointer.ToInt64() + 188); currentOffset += 188; if (RunParameters.Instance.TraceIDs.Contains("TRANSPORTPACKETS")) { Logger.Instance.Dump("Transport Packet", buffer, buffer.Length); } TransportPacket transportPacket = new TransportPacket(); try { transportPacket.Process(buffer); } catch (ArgumentOutOfRangeException) { Logger.Instance.Write("Transport packet parsing failed at current offset " + currentOffset + " max offset: " + maxOffset); return(null); } if (transportPacket.IsNullPacket || transportPacket.ErrorIndicator) { return(null); } /*Logger.Instance.Write("Processing PID 0x" + transportPacket.PID.ToString("X") + " from offset " + currentOffset);*/ PidHandler pidHandler = findPidHandler(transportPacket.PID); pidHandler.Process(buffer, transportPacket); /*Logger.Instance.Write("PID handler 0x" + pidHandler.Pid.ToString("X") + " has created " + pidHandler.Sections.Count + " sections");*/ return(pidHandler.Sections); }
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); }
private bool fillBuffer(FileStream fileStream) { if (pids == null) { Thread.Sleep(100); return (false); } if (size + 136 + packetSize > memorySize) { return (false); } byte[] buffer = new byte[packetSize]; int readCount = getPacket(fileStream, buffer); if (readCount < packetSize) return (false); TransportPacket transportPacket = new TransportPacket(); try { transportPacket.Process(buffer); } catch (ArgumentOutOfRangeException) { Logger.Instance.Write("Sync byte error"); return (false); } if (RunParameters.Instance.TraceIDs.Contains("MPEG2PACKETS")) { if (pids[0] == -1 || pids.Contains(transportPacket.PID)) Logger.Instance.Dump("Simulation Packet for PID " + transportPacket.PID, buffer, buffer.Length); } if (transportPacket.ErrorIndicator) return (false); if (transportPacket.IsNullPacket) return (false); bool reply = resourceMutex.WaitOne(5000, true); if (pids[0] == -1 || pids.Contains(transportPacket.PID)) { Marshal.Copy(buffer, 0, offset, buffer.Length); offset = new IntPtr(offset.ToInt64() + packetSize); size += packetSize; Marshal.WriteInt32(memoryBlock, size); } if (reply) resourceMutex.ReleaseMutex(); return (false); }
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); }
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); }
private Collection<Mpeg2Section> getNextSection() { if (!initialized) initialize(); if (currentOffset >= maxOffset) { getMaxOffset(); return (null); } byte[] buffer = new byte[188]; Marshal.Copy(currentPointer, buffer, 0, 188); currentPointer = new IntPtr(currentPointer.ToInt64() + 188); currentOffset += 188; if (RunParameters.Instance.TraceIDs.Contains("TRANSPORTPACKETS")) Logger.Instance.Dump("Transport Packet", buffer, buffer.Length); TransportPacket transportPacket = new TransportPacket(); try { transportPacket.Process(buffer); } catch (ArgumentOutOfRangeException) { Logger.Instance.Write("Transport packet parsing failed at current offset " + currentOffset + " max offset: " + maxOffset); return (null); } if (transportPacket.IsNullPacket || transportPacket.ErrorIndicator) return (null); /*Logger.Instance.Write("Processing PID 0x" + transportPacket.PID.ToString("X") + " from offset " + currentOffset);*/ PidHandler pidHandler = findPidHandler(transportPacket.PID); pidHandler.Process(buffer, transportPacket); /*Logger.Instance.Write("PID handler 0x" + pidHandler.Pid.ToString("X") + " has created " + pidHandler.Sections.Count + " sections");*/ return (pidHandler.Sections); }
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); }
private void getData(ISampleDataProvider dataProvider, AnalysisParameters analysisParameters, BackgroundWorker worker) { Logger.Instance.Write("Starting analysis"); analysisParameters.ScanningFrequency.CollectionType = CollectionType.MHEG5; FrequencyScanner frequencyScanner = new FrequencyScanner(dataProvider, worker); Collection<TVStation> stations = frequencyScanner.FindTVStations(); pidList = new Collection<PidSpec>(); dataProvider.ChangePidMapping(new int[] { -1 }); IntPtr memoryPointer = dataProvider.BufferAddress; int currentOffset = 0; byte[] buffer = new byte[188]; DateTime startTime = DateTime.Now; int packetCount = 0; int errorPackets = 0; int nullPackets = 0; while ((DateTime.Now - startTime).TotalSeconds < analysisParameters.DataCollectionTimeout && !worker.CancellationPending) { if (currentOffset >= dataProvider.BufferSpaceUsed) { Thread.Sleep(2000); if (currentOffset >= dataProvider.BufferSpaceUsed) { Logger.Instance.Write("Analysis resetting pid after " + packetCount + " packets (errors = " + errorPackets + " null = " + nullPackets + ")"); dataProvider.ChangePidMapping(new int[] { -1 }); currentOffset = 0; } } else { IntPtr currentPointer = new IntPtr(memoryPointer.ToInt64() + currentOffset + 136); Marshal.Copy(currentPointer, buffer, 0, 188); packetCount++; /*if (dumpCount < 10000) { Logger.Instance.Dump("atsc " + dumpCount, buffer, buffer.Length); dumpCount++; }*/ TransportPacket transportPacket = new TransportPacket(); try { transportPacket.Process(buffer); if (transportPacket.ErrorIndicator) errorPackets++; if (transportPacket.IsNullPacket) nullPackets++; if (!transportPacket.ErrorIndicator) { bool ignorePid = checkPid(transportPacket.PID, stations); if (!ignorePid) { PidSpec pidSpec = findPidSpec(pidList, transportPacket.PID); if (pidSpec == null) { pidSpec = new PidSpec(transportPacket.PID); addPid(pidList, new PidSpec(transportPacket.PID)); } pidSpec.ProcessPacket(buffer, transportPacket); } } else Logger.Instance.Write("Transport packet error in packet " + packetCount); } catch (ArgumentOutOfRangeException) { Logger.Instance.Write("Failed to parse packet " + packetCount); } currentOffset += buffer.Length; } } Logger.Instance.Write("Analysis completed: " + pidList.Count + " PID's loaded from " + packetCount + " packets"); }
private bool fillBuffer(FileStream fileStream) { if (pids == null) { Thread.Sleep(100); return(false); } if (size + 136 + packetSize > memorySize) { return(false); } byte[] buffer = new byte[packetSize]; int readCount = getPacket(fileStream, buffer); if (readCount < packetSize) { return(false); } TransportPacket transportPacket = new TransportPacket(); try { transportPacket.Process(buffer); } catch (ArgumentOutOfRangeException) { Logger.Instance.Write("Sync byte error"); return(false); } if (RunParameters.Instance.TraceIDs.Contains("MPEG2PACKETS")) { if (pids[0] == -1 || pids.Contains(transportPacket.PID)) { Logger.Instance.Dump("Simulation Packet for PID " + transportPacket.PID, buffer, buffer.Length); } } if (transportPacket.ErrorIndicator) { return(false); } if (transportPacket.IsNullPacket) { return(false); } bool reply = resourceMutex.WaitOne(5000, true); if (pids[0] == -1 || pids.Contains(transportPacket.PID)) { Marshal.Copy(buffer, 0, offset, buffer.Length); offset = new IntPtr(offset.ToInt64() + packetSize); size += packetSize; Marshal.WriteInt32(memoryBlock, size); } if (reply) { resourceMutex.ReleaseMutex(); } return(false); }