/*
 * @(#)StreamParserTS.java
 *
 * Copyright (c) 2005-2009 by dvb.matt, All rights reserved.
 * 
 * This file is part of ProjectX, a free Java based demux utility.
 * By the authors, ProjectX is intended for educational purposes only, 
 * as a non-commercial test project.
 * 
 *
 * This program is free software; you can redistribute it and/or modify 
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation; either version 2 of the License, or
 * (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
 *
 */

package net.sourceforge.dvb.projectx.parser;

import java.io.File;
import java.io.InputStream;
import java.io.IOException;
import java.io.PushbackInputStream;

import java.util.Arrays;
import java.util.List;
import java.util.ArrayList;

import net.sourceforge.dvb.projectx.common.Common;
import net.sourceforge.dvb.projectx.common.Resource;
import net.sourceforge.dvb.projectx.common.Keys;
import net.sourceforge.dvb.projectx.common.JobCollection;
import net.sourceforge.dvb.projectx.common.JobProcessing;

import net.sourceforge.dvb.projectx.io.RawFile;

import net.sourceforge.dvb.projectx.xinput.XInputFile;
import net.sourceforge.dvb.projectx.xinput.StreamInfo;

import net.sourceforge.dvb.projectx.parser.CommonParsing;
import net.sourceforge.dvb.projectx.parser.StreamConverter;
import net.sourceforge.dvb.projectx.parser.StreamDemultiplexer;
import net.sourceforge.dvb.projectx.parser.StreamParserBase;

import net.sourceforge.dvb.projectx.parser.TS_PMTParser;

import net.sourceforge.dvb.projectx.thirdparty.TS;


/**
 * main thread
 */
public class StreamParserTS extends StreamParserBase {

	private StreamBuffer streambuffer;

	private ArrayList usedPIDs;

	private List TSPidlist;

	private PushbackInputStream inputstream;

	private TS_PMTParser pmt_parser;

	private boolean HumaxAdaption;
	private boolean HandanAdaption;
	private boolean JepssenAdaption;
	private boolean KoscomAdaption;

	private boolean Debug;

	private long count;

	private byte TS_SyncByte = 0x47;
	private byte[] hav_chunk = { 0x5B, 0x48, 0x4F, 0x4A, 0x49, 0x4E, 0x20, 0x41 }; //'[HOJIN A'
	private byte[] tmp_chunk = new byte[36];

	private int TS_BufferSize = 189;
	private int TS_PacketLength = 188;
	private int PidMask = 0x1FFF;
	private int MaxBufferSize = 6000000;
	private int PushbackBufferSize = 225; //  188 + chunksize (36)

	/**
	 * 
	 */
	public StreamParserTS()
	{
		super();
	}

	/**
	 * ts Parser
	 */
	public String parseStream(JobCollection collection, XInputFile aXInputFile, int pes_streamtype, int action, String vptslog)
	{
		JobProcessing job_processing = collection.getJobProcessing();

		setFileName(collection, job_processing, aXInputFile);

		vptslog = "-1"; //fix

		boolean Message_1 = collection.getSettings().getBooleanProperty(Keys.KEY_MessagePanel_Msg1);
		boolean Message_2 = collection.getSettings().getBooleanProperty(Keys.KEY_MessagePanel_Msg2);

		Debug = collection.getSettings().getBooleanProperty(Keys.KEY_DebugLog);

		boolean JoinPackets = collection.getSettings().getBooleanProperty(Keys.KEY_TS_joinPackets);
		boolean GetEnclosedPackets = collection.getSettings().getBooleanProperty(Keys.KEY_Input_getEnclosedPackets);
		boolean IgnoreScrambledPackets = collection.getSettings().getBooleanProperty(Keys.KEY_TS_ignoreScrambled);
		boolean PcrCounter = collection.getSettings().getBooleanProperty(Keys.KEY_Conversion_PcrCounter);
		boolean BlindSearch = collection.getSettings().getBooleanProperty(Keys.KEY_TS_blindSearch);

		CreateD2vIndex = collection.getSettings().getBooleanProperty(Keys.KEY_ExternPanel_createD2vIndex);
		SplitProjectFile = collection.getSettings().getBooleanProperty(Keys.KEY_ExternPanel_splitProjectFile);

		setOverheadSize(collection);

		boolean UseAutoPidFilter = collection.getSettings().getBooleanProperty(Keys.KEY_useAutoPidFilter);
		boolean Overlap = collection.getSettings().getBooleanProperty(Keys.KEY_ExportPanel_Export_Overlap);

		HumaxAdaption = collection.getSettings().getBooleanProperty(Keys.KEY_TS_HumaxAdaption);
		HandanAdaption = collection.getSettings().getBooleanProperty(Keys.KEY_TS_FinepassAdaption);
		JepssenAdaption = collection.getSettings().getBooleanProperty(Keys.KEY_TS_JepssenAdaption);
		KoscomAdaption = collection.getSettings().getBooleanProperty(Keys.KEY_TS_KoscomAdaption);


		boolean ts_isIncomplete = false;
		boolean ts_startunit = false;
		boolean ts_hasErrors = false;
		boolean containsPts = false;
		boolean ende = false;
		boolean missing_syncword = false;
		boolean usePidfilter = false;
		boolean isTeletext;
		boolean foundObject;
		boolean TSType192;
		boolean TSType192Skip = false;

		byte[] ts_packet = new byte[TS_BufferSize];
		byte[] ts_192pre = new byte[4];
		byte[] pes_packet;

		int Infoscan_Value = Integer.parseInt(collection.getSettings().getProperty(Keys.KEY_ExportPanel_Infoscan_Value));
		int CutMode = collection.getSettings().getIntProperty(Keys.KEY_CutMode);

		int ts_pid;
		int ts_scrambling = 0;
		int ts_adaptionfield = 0;
		int ts_counter = 0;
		int ts_adaptionfieldlength = 0;
		int ts_service_id = -1;
		int ts_pmt_pid = -1;

		int payload_pesID = 0;
		int payload_psiID = 0;

		int pes_extensionlength = 0;
		int pes_payloadlength = 0;
		int pes_packetlength;
		int pes_packetoffset = 6;
		int pes_headerlength = 9;
		int pes_offset = 0;
		int pes_subID = 0;
		int pes_ID;
		int bytes_read = 0;

		int[] newID = { 0x80, 0x90, 0xC0, 0xE0, 0xA0, 0x20 };

		job_processing.clearStatusVariables();
		int[] clv = job_processing.getStatusVariables();

		long next_CUT_BYTEPOSITION = 0;
		long lastpts = 0;
		long ptsoffset = 0;
		long packet = 0;

		count = 0;

		long size = 0;
		long base;
		long startPoint = 0;
		long starts[] = new long[collection.getPrimaryInputFileSegments()];
		long Overlap_Value = 1048576L * (collection.getSettings().getIntProperty(Keys.KEY_ExportPanel_Overlap_Value) + 1);
		long qexit;


		streamconverter = new StreamConverter();

		usedPIDs = new ArrayList();

		String file_id = aXInputFile.getFileID();
	
		demuxList = job_processing.getTSDemuxList();
		TSPidlist = job_processing.getTSPidList();

		/**
		 * re-read old streams, for next split part
		 */
		if (job_processing.getSplitPart() == 0)
		{ 
			TSPidlist.clear();
			demuxList.clear();
		}

		else
		{
			for (int i = 0; i < TSPidlist.size(); i++)
			{
				streambuffer = (StreamBuffer) TSPidlist.get(i);
				streambuffer.reset();
				streambuffer.setStarted(false);
			}

			for (int i = 0; i < demuxList.size(); i++)
			{
				streamdemultiplexer = (StreamDemultiplexer) demuxList.get(i);

				if (streamdemultiplexer.getnewID() != 0)
					newID[streamdemultiplexer.getType()]++;

				if (streamdemultiplexer.getNum() == -1) 
					continue;

				if (streamdemultiplexer.getType() == CommonParsing.MPEG_VIDEO) 
					streamdemultiplexer.initVideo2(collection, fparent);

				else 
					streamdemultiplexer.init2(collection, fparent);
			}
		}

		/**
		 * first split part, or one file only
		 */
		if (job_processing.getSplitPart() == 0)
		{
			StreamInfo streamInfo = aXInputFile.getStreamInfo();

			int[] pids = streamInfo.getPIDs();

			if (pids.length > 0)
			{
				Common.setMessage(Resource.getString("parseTS.sid") + Common.adaptString(Integer.toHexString(pids[0]).toUpperCase(), 4));
				Common.setMessage(Resource.getString("parseTS.pmt.refers", Common.adaptString(Integer.toHexString(pids[1]).toUpperCase(), 4)));

				ts_pmt_pid = pids[1];
				pmt_parser = new TS_PMTParser(pids[0], pids[1]);

				Common.setMessage(Resource.getString("ScanInfo.Video"));
				Common.setMessage(streamInfo.getVideo());

				Common.setMessage(Resource.getString("ScanInfo.Audio"));
				Common.setMessage(streamInfo.getAudio());

				Common.setMessage(Resource.getString("ScanInfo.Teletext"));
				Common.setMessage(streamInfo.getTeletext());

				Common.setMessage(Resource.getString("ScanInfo.Subpicture"));
				Common.setMessage(streamInfo.getSubpicture());

				Common.setMessage("");

			//	for (int i = 2; i < pids.length; i++)
				for (int i = 1; i < pids.length; i++)  // includes pmtpid
				{
					TSPidlist.add(streambuffer = new StreamBuffer());
					streambuffer.setPID(pids[i]);
				}

				job_processing.setAudioStreamInfo(streamInfo.getAudioStreams());
			}

			else 
				Common.setMessage(Resource.getString("parseTS.no.pmt"));
		}


		/**
		 * init conversions 
		 */
		initConversion(collection, fparent, action, CommonParsing.ACTION_TO_TS, job_processing.getSplitPart());

		/**
		 * d2v project 
	 	 */
		if (CreateD2vIndex || SplitProjectFile)
			job_processing.getProjectFileD2V().Init(fparent);


		job_processing.setMinBitrate(CommonParsing.MAX_BITRATE_VALUE);
		job_processing.setMaxBitrate(0);
		job_processing.setExportedVideoFrameNumber(0);
		job_processing.setEndPtsOfGop(-10000);
		job_processing.setSequenceHeader(true);
		job_processing.setAllMediaFilesExportLength(0);
		job_processing.setProjectFileExportLength(0);
		job_processing.setCutByteposition(0);

		/**
		 * pid inclusion 
		 */
		int[] predefined_Pids = UseAutoPidFilter ? aXInputFile.getStreamInfo().getMediaPIDs() : collection.getPIDsAsInteger();

		int[] include = new int[predefined_Pids.length];

		for (int i = 0; i < include.length; i++) 
			include[i] = PidMask & predefined_Pids[i];

		if (include.length > 0)
		{
			Arrays.sort(include);

			String str = " ";

			for (int i = 0; i < include.length; i++)
				str += "0x" + Integer.toHexString(include[i]).toUpperCase() + " ";

			Common.setMessage(Resource.getString("parseTS.special.pids") + ": {" + str + "}");

			usePidfilter = true;
		}


		try {

			// save event data from diff headers
			getEventInfo((XInputFile) collection.getInputFile(0));

			// determine start & end byte pos. of each file segment
			for (int i = 0; i < starts.length; i++)
			{
				aXInputFile = (XInputFile) collection.getInputFile(i);
				starts[i] = size;
				size += aXInputFile.length();
			}

			aXInputFile = (XInputFile) collection.getInputFile(job_processing.getFileNumber());

			// set start & end byte pos. of first file segment
			count = starts[job_processing.getFileNumber()];
			size = count + aXInputFile.length();

			// split skipping first, for next split part
			if (job_processing.getSplitSize() > 0)
			{
				startPoint = job_processing.getLastHeaderBytePosition();
				startPoint -= !Overlap ? 0 : Overlap_Value;

				job_processing.setLastGopTimecode(0);
				job_processing.setLastGopPts(0);
				job_processing.setLastSimplifiedPts(0);
			}

			List CutpointList = collection.getCutpointList();
			List ChapterpointList = collection.getChapterpointList();

			// jump near to first cut-in point to collect more audio
			if (CutMode == CommonParsing.CUTMODE_BYTE && CutpointList.size() > 0 && CommonParsing.getCutCounter() == 0)
				startPoint = Long.parseLong(CutpointList.get(CommonParsing.getCutCounter()).toString()) - ((action == CommonParsing.ACTION_DEMUX) ? OverheadSize : 0);

			if (startPoint < 0)
				startPoint = count;

			else if (startPoint < count)
			{
				for (int i = starts.length; i > 0; i--)
					if (starts[i - 1] > startPoint)
						job_processing.countFileNumber(-1);
			}


			else if (startPoint > count)
			{
				for (int i = job_processing.getFileNumber() + 1; i < starts.length; i++)
				{
					if (starts[i] > startPoint)
						break;
					else 
						job_processing.countFileNumber(+1);
				}
			}

			aXInputFile = (XInputFile) collection.getInputFile(job_processing.getFileNumber());
			TSType192 = aXInputFile.getStreamInfo().getStreamSubType() == CommonParsing.TS_TYPE_192BYTE >>> 8;

			count = starts[job_processing.getFileNumber()];

			if (job_processing.getFileNumber() > 0)
				Common.setMessage(Resource.getString("parseTS.continue") + " " + aXInputFile);

			base = count;
			size = count + aXInputFile.length();

			inputstream = new PushbackInputStream(aXInputFile.getInputStream(startPoint - base), PushbackBufferSize);

			count += (startPoint - base);

			Common.updateProgressBar((action == CommonParsing.ACTION_DEMUX ? Resource.getString("parseTS.demuxing") : Resource.getString("parseTS.converting")) + " " + Resource.getString("parseTS.dvb.mpeg") + " " + aXInputFile.getName(), (count - base), (size - base));

			qexit = count + (0x100000L * Infoscan_Value);


			bigloop:
			while (true)
			{
				loop:
				while (count < size)
				{
					while (pause())
					{}

					if (CommonParsing.isProcessCancelled() || (CommonParsing.isInfoScan() && count > qexit))
					{ 
						CommonParsing.setProcessCancelled(false);
						job_processing.setSplitSize(0); 

						break bigloop; 
					}

					/**
					 * cut end reached 
					 */
					if (job_processing.getCutComparePoint() + 20 < job_processing.getSourceVideoFrameNumber())
					{
						ende = true;
						break bigloop; 
					}

					/**
					 * cut end reached 
					 */
					if (CutMode == CommonParsing.CUTMODE_BYTE && CutpointList.size() > 0)
					{
						if (CommonParsing.getCutCounter() == CutpointList.size() && (CommonParsing.getCutCounter() & 1) == 0)
							if (count > Long.parseLong(CutpointList.get(CommonParsing.getCutCounter() - 1).toString()) + OverheadSize)
							{
								ende = true;
								break bigloop;
							}
					}

					//192er packets simple skipping
					TSType192Skip = false;

					/**
					 * regular read
					 */
					if (!ts_isIncomplete || !JoinPackets)
					{
						bytes_read = inputstream.read(ts_packet, 0, TS_BufferSize);

						/**
						 * EOF is packet aligned
						 */
						if (bytes_read == TS_PacketLength && size - count == bytes_read)
							ts_packet[TS_PacketLength] = TS_SyncByte;

						else if (bytes_read < TS_BufferSize && JoinPackets)
						{
							Common.setMessage(Resource.getString("parseTS.incomplete") + " " + count);
							count += bytes_read;
							break loop;
						}

						//192er packets simple skipping
						if (TSType192 && bytes_read == TS_BufferSize)
						{
							inputstream.read(ts_192pre, 0, 4);

							TSType192Skip = ts_192pre[3] == TS_SyncByte;

							if (TSType192Skip)
							{
								ts_packet[TS_PacketLength] = TS_SyncByte;
								count += 4;
							}

							else
								inputstream.unread(ts_192pre, 0, 4);
						}
					}

					/**
					 * humax .vid workaround, skip special data chunk
					 */
					skipLeadingHumaxDataChunk(ts_packet);

					/**
					 * Jepssen .vid workaround, skip special data chunk
					 */
					skipLeadingJepssenDataChunk(ts_packet);

					/**
					 * Koscom .vid workaround, skip special data chunk
					 */
					skipLeadingKoscomDataChunk(ts_packet);

					/**
					 * handan+finepass .hav workaround, chunks fileposition index (hdd sectors) unused, because a file can be hard-cut anywhere
					 */
					skipLeadingHandanDataChunk(ts_packet);

					if (skipJepssenDataChunk(ts_packet))
					{}

					else if (skipKoscomDataChunk(ts_packet))
					{}

		 			else if (skipHumaxDataChunk(ts_packet))
					{}  // do nothing, take the packet

		 			else if (ts_packet[0] != TS_SyncByte || (GetEnclosedPackets && ts_packet[TS_PacketLength] != TS_SyncByte) )
					{
						//192 segmentation combine
						if (TSType192 && ts_isIncomplete && JoinPackets) 
						{
							inputstream.read(ts_192pre, 0, 4);

							TSType192Skip = ts_192pre[3] == TS_SyncByte;

							if (TSType192Skip)
							{
								ts_packet[TS_PacketLength] = TS_SyncByte;
								count += 4;
								Common.setMessage(Resource.getString("parseTS.comp.ok"));
							}

							else
								inputstream.unread(ts_192pre, 0, 4);
						}

						//default or 192 segmentation combine failed
						if (!TSType192Skip)
						{
							if (Message_2 && !missing_syncword) 
								Common.setMessage(Resource.getString("parseTS.missing.sync") + " " + count);

							if (ts_isIncomplete && JoinPackets)
							{
								Common.setMessage(Resource.getString("parseTS.comp.failed"));

								inputstream.unread(ts_packet, 190 - bytes_read, bytes_read - 1);

								ts_isIncomplete = false;

								count++;
							}

							else
							{
								int i = 1;

								while (i < TS_BufferSize)
								{
									if (ts_packet[i] == TS_SyncByte)
										break;

									i++;
								}
							
								inputstream.unread(ts_packet, i, TS_BufferSize - i);

								count += i;
							}

							missing_syncword = true;

							continue loop;
						}
					}

					else if (ts_isIncomplete && JoinPackets)
						Common.setMessage(Resource.getString("parseTS.comp.ok"));

					//192er packets simple skipping
					if (TSType192Skip)
						count -= 4;

					if (Message_2 && missing_syncword)
						Common.setMessage(Resource.getString("parseTS.found.sync") + " " + count);

					missing_syncword = false;

					inputstream.unread(ts_packet, TS_PacketLength, 1);

					/**
					 * mark for split and cut
					 */
					job_processing.setLastHeaderBytePosition(count);
					next_CUT_BYTEPOSITION = count;


					if (ts_isIncomplete && JoinPackets)
					{
						count += (bytes_read - 1);
						ts_isIncomplete = false;
					}

					else
						count += TS_PacketLength;

					//192er packets simple skipping
					if (TSType192Skip)
						count += 4;

					packet++;

					ts_hasErrors  = (0x80 & ts_packet[1]) != 0;							// TS error indicator
					ts_startunit  = (0x40 & ts_packet[1]) != 0; 							// new PES packet start
					ts_pid        = (0x1F & ts_packet[1])<<8 | (0xFF & ts_packet[2]);    // the PID
					ts_scrambling = (0xC0 & ts_packet[3])>>>6;                       	// packet is scrambled (>0)
					ts_adaptionfield = (0x30 & ts_packet[3])>>>4;                    		// has adaption field ?
					ts_counter    = (0x0F & ts_packet[3]);                          		// packet counter 0..f
					ts_adaptionfieldlength = ts_adaptionfield > 1 ? (0xFF & ts_packet[4]) + 1 : 0;  		// adaption field length

					Common.updateProgressBar((count - base), (size - base));

					/** 
					 * pid inclusion 
					 */
					if (usePidfilter && Arrays.binarySearch(include, ts_pid) < 0)
						continue loop;

					/**
					 * raw pid filter extraction
					 */
					if (action == CommonParsing.ACTION_FILTER)
					{
						streamconverter.write(job_processing, ts_packet, 0, TS_PacketLength, null, next_CUT_BYTEPOSITION, CommonParsing.isInfoScan(), CutpointList);
						continue loop;
					}

					/**
					 * 00 = reserved value, do not message it, it's used e.g. in padding stream 0x1FFF
					 */
					if ((ts_adaptionfield & 1) == 0)
						continue loop;

					// errors
					if (ts_hasErrors || ts_adaptionfieldlength > 183 || (ts_adaptionfieldlength > 180 && ts_startunit))
					{
						if (Message_1)
							Common.setMessage(Resource.getString("parseTS.bit.error", Common.adaptString(Integer.toHexString(ts_pid).toUpperCase(), 4), String.valueOf(packet), String.valueOf(count - TS_PacketLength)) + " (" + ts_adaptionfieldlength + " / " + ts_startunit + ")");

						//if (!ts_hasErrors) // discard bad packets
							continue loop;
					}
/** errors alt 0.90.4.00
					if (ts_adaptionfieldlength > 183 || (ts_adaptionfieldlength > 180 && ts_startunit))
						ts_hasErrors = true;

					if (ts_hasErrors)
					{
						if (Message_1)
							Common.setMessage(Resource.getString("parseTS.bit.error", Integer.toHexString(ts_pid).toUpperCase(), "" + packet, "" + (count-TS_PacketLength)));

						continue loop;
					}
**/
					payload_pesID = ts_startunit ? CommonParsing.getIntValue(ts_packet, 4 + ts_adaptionfieldlength, 4, !CommonParsing.BYTEREORDERING) : 0;
					payload_psiID = ts_startunit ? payload_pesID>>>16 : 0;

					foundObject = false;

					/**
					 * find PID object
					 */
					for (int i = 0; i < TSPidlist.size(); i++)
					{      
						streambuffer = (StreamBuffer) TSPidlist.get(i);

						foundObject = ts_pid == streambuffer.getPID();

						if (foundObject)
							break; 
					}

					/**
					 * create new PID object
					 */
					if (!foundObject)
					{
						TSPidlist.add(streambuffer = new StreamBuffer());
						streambuffer.setPID(ts_pid);

						/**
						 * padding packet
						 */
						if (ts_pid == PidMask)
						{
							Common.setMessage(Resource.getString("parseTS.stuffing"));
							streambuffer.setneeded(false);
						}
					}

					if (Debug) 
						System.out.println("pk " + packet + " /pid " + Integer.toHexString(ts_pid) + " /pes " + Integer.toHexString(payload_pesID) + " /tn " + streambuffer.isneeded() + " /er " + ts_hasErrors + " /st " + ts_startunit + " /sc " + ts_scrambling + " /ad " + ts_adaptionfield + " /al " + ts_adaptionfieldlength);

					// PID not of interest
					if (!streambuffer.isneeded()) 
						continue loop;

					if (IgnoreScrambledPackets)
					{
						// cannot work with scrambled data
						if (ts_scrambling > 0)
						{
							if (!streambuffer.getScram())
							{
								streambuffer.setScram(true);
								Common.setMessage(Resource.getString("parseTS.scrambled", Common.adaptString(Integer.toHexString(ts_pid).toUpperCase(), 4), String.valueOf(packet), String.valueOf(count - TS_PacketLength)));
							}
							continue loop;
						}

						else
						{
							if (streambuffer.getScram())
							{
								streambuffer.setScram(false);
								Common.setMessage(Resource.getString("parseTS.clear", Common.adaptString(Integer.toHexString(ts_pid).toUpperCase(), 4), String.valueOf(packet), String.valueOf(count - TS_PacketLength)));
							}
						}
					}

					/**
					 * out of sequence? 
					 * no payload == no counter++
					 */
					if (Message_1 && (PcrCounter || (!PcrCounter && (1 & ts_adaptionfield) != 0)))
					{
						if (streambuffer.getCounter() != -1)
						{
							if (streambuffer.isStarted() && ts_counter != streambuffer.getCounter())
							{
								Common.setMessage(Resource.getString("parseTS.outof.sequence", Common.adaptString(Integer.toHexString(ts_pid).toUpperCase(), 4), String.valueOf(packet), String.valueOf(count - TS_PacketLength), String.valueOf(ts_counter), String.valueOf(streambuffer.getCounter())) + " (~" + Common.formatTime_1( (long)((CommonParsing.getVideoFramerate() / 90.0f) * job_processing.getExportedVideoFrameNumber())) + ")");
								streambuffer.setCounter(ts_counter);
							}

							streambuffer.count();
						}

						else
						{ 
							streambuffer.setCounter(ts_counter);
							streambuffer.count();
						}
					}

					/**
					 * buffering of subsequent packets
					 */
					if (!ts_startunit)
					{
						if (streambuffer.isneeded() && streambuffer.isStarted())
							streambuffer.writeData(ts_packet, 4 + ts_adaptionfieldlength, 184 - ts_adaptionfieldlength);

						if (streambuffer.getDataSize() > MaxBufferSize)
						{
							Common.setMessage("!> 0x" + Integer.toHexString(streambuffer.getPID()).toUpperCase() + ", buffered packet exceeds maximum size, flushed...");
							streambuffer.reset();
						}
					}

					else
					{
						isTeletext = false;
						pes_subID = 0;

						if (streambuffer.getID() == -1 && payload_pesID == 0x1BD) 
						{
							pes_extensionlength = 0;
							pes_offset = 0;

							try {
								pes_extensionlength = 0xFF & ts_packet[12 + ts_adaptionfieldlength];
								pes_offset = 13 + ts_adaptionfieldlength + pes_extensionlength;
								isTeletext = (pes_extensionlength == 0x24 && (0xFF & ts_packet[pes_offset])>>>4 == 1);

								// workaround uk freesat teletext
								if (!isTeletext)
									isTeletext = (pes_extensionlength == 0x24 && (0xFF & ts_packet[pes_offset]) == 0x99);

								if (!isTeletext)
									pes_subID = ((0xFF & ts_packet[pes_offset]) == 0x20 && (0xFF & ts_packet[pes_offset + 1]) == 0 && (0xFF & ts_packet[pes_offset + 2]) == 0xF) ? 0x20 : 0;

							} catch (ArrayIndexOutOfBoundsException e) {

								Common.setMessage(Resource.getString("parseTS.io.error") + " / " + pes_extensionlength + " / " + pes_offset);
								Common.setExceptionMessage(e);

								streambuffer.reset();
								streambuffer.setStarted(false);

								continue loop;
							}
						}

						streambuffer.setStarted(true);

						/**
						 * create new streamdemultiplexer object
						 */
						if (streambuffer.getID() == -1)
						{
							streambuffer.setID(payload_pesID);
							String type = "";

							switch (0xFFFFFFF0 & payload_pesID)
							{
							case 0x1E0:
								type = Resource.getString("idtype.mpeg.video");

								streambuffer.setDemux(demuxList.size());

								streamdemultiplexer = new StreamDemultiplexer(collection);
								streamdemultiplexer.setPID(ts_pid);
								streamdemultiplexer.setID(payload_pesID);
								streamdemultiplexer.setnewID(newID[CommonParsing.MPEG_VIDEO]++);
								streamdemultiplexer.setsubID(0);
								streamdemultiplexer.setType(CommonParsing.MPEG_VIDEO);
								streamdemultiplexer.setStreamType(pes_streamtype);

								demuxList.add(streamdemultiplexer);

								if (action == CommonParsing.ACTION_DEMUX)
								{
									if (newID[CommonParsing.MPEG_VIDEO] - 1 == 0xE0)
										streamdemultiplexer.initVideo(collection, fparent, MainBufferSize / demuxList.size(), demuxList.size(), 2);

									else
									{
										type += Resource.getString("idtype.ignored");
										streambuffer.setneeded(false); 
									}
								}

								else 
									type += " " + Resource.getString("idtype.mapped.to") + Integer.toHexString(newID[CommonParsing.MPEG_VIDEO] - 1).toUpperCase();

								break;

							case 0x1C0:
							case 0x1D0:
								type = Resource.getString("idtype.mpeg.audio");

								streambuffer.setDemux(demuxList.size());

								streamdemultiplexer = new StreamDemultiplexer(collection);
								streamdemultiplexer.setPID(ts_pid);
								streamdemultiplexer.setID(payload_pesID);
								streamdemultiplexer.setnewID(newID[CommonParsing.MPEG_AUDIO]++);
								streamdemultiplexer.setsubID(0);
								streamdemultiplexer.setType(CommonParsing.MPEG_AUDIO);
								streamdemultiplexer.setStreamType(pes_streamtype);

								demuxList.add(streamdemultiplexer);

								if (action == CommonParsing.ACTION_DEMUX) 
									streamdemultiplexer.init(collection, fparent, MainBufferSize / demuxList.size(), demuxList.size(), 2);

								else
									type += " " + Resource.getString("idtype.mapped.to") + Integer.toHexString(newID[CommonParsing.MPEG_AUDIO] - 1).toUpperCase();

								break;
							}

							switch (payload_pesID)
							{
							case 0x1BD: 
								type = Resource.getString("idtype.private.stream");
								type += (isTeletext ? " (TTX) ": "") + (pes_subID != 0 ? " (SubID 0x" + Integer.toHexString(pes_subID).toUpperCase() + ")" : ""); 

								streambuffer.setDemux(demuxList.size());

								streamdemultiplexer = new StreamDemultiplexer(collection);
								streamdemultiplexer.setPID(ts_pid);
								streamdemultiplexer.setID(payload_pesID);
								streamdemultiplexer.setsubID(pes_subID);
								streamdemultiplexer.setTTX(isTeletext);

								if (isTeletext)
								{
									streamdemultiplexer.setnewID(newID[CommonParsing.TELETEXT]++);
									streamdemultiplexer.setType(CommonParsing.TELETEXT);
								}

								else if (pes_subID == 0x20)
								{
									streamdemultiplexer.setnewID(newID[CommonParsing.SUBPICTURE]++);
									streamdemultiplexer.setType(CommonParsing.SUBPICTURE);
								}

								else
								{
									streamdemultiplexer.setnewID(newID[CommonParsing.AC3_AUDIO]++);
									streamdemultiplexer.setType(CommonParsing.AC3_AUDIO);
								}

								streamdemultiplexer.setStreamType(pes_subID == 0x20 ? CommonParsing.MPEG2PS_TYPE : CommonParsing.PES_AV_TYPE);
								demuxList.add(streamdemultiplexer);

								if (action == CommonParsing.ACTION_DEMUX) 
									streamdemultiplexer.init(collection, fparent, MainBufferSize/demuxList.size(), demuxList.size(), 2);

								if (action != CommonParsing.ACTION_DEMUX && pes_subID != 0) 
								{
									type += Resource.getString("idtype.ignored");
									streambuffer.setneeded(false);
								}

								if (action != CommonParsing.ACTION_DEMUX && !isTeletext) 
									type += " " + Resource.getString("idtype.mapped.to") + Integer.toHexString(newID[CommonParsing.AC3_AUDIO] - 1).toUpperCase();

								if (action != CommonParsing.ACTION_DEMUX && isTeletext) 
									type += " " + Resource.getString("idtype.mapped.to") + Integer.toHexString(newID[CommonParsing.TELETEXT] - 1).toUpperCase();

								break;

							case 0x1BF:
								Common.setMessage(Resource.getString("parseTS.priv.stream2.ignored", Common.adaptString(Integer.toHexString(ts_pid).toUpperCase(), 4)));
								//break;

								streambuffer.setneeded(false); // skip foll. packs

								continue loop;
							}

							// dynamic pmt
							if (UseAutoPidFilter && ts_pid == ts_pmt_pid && payload_psiID == 2)
							{
								type = "(PMT) (" + (count - TS_PacketLength) + " #" + packet + ") ";  // pos + packno

								Common.setMessage("ok> PID 0x" + Common.adaptString(Integer.toHexString(ts_pid).toUpperCase(), 4) + " " + type);

								usedPIDs.add("0x" + Integer.toHexString(ts_pid));
							}

							// accepted pids
							else if (!type.equals(""))
							{
								type += " (" + (count - TS_PacketLength) + " #" + packet + ") ";  // pos + packno

								Common.setMessage(Resource.getString("parseTS.pid.has.pes", Common.adaptString(Integer.toHexString(ts_pid).toUpperCase(), 4), Integer.toHexString(0xFF & payload_pesID).toUpperCase(), type));

								usedPIDs.add("0x" + Integer.toHexString(ts_pid));
							}

							// declined pids
							else
							{
								if (ts_pid == 0 && payload_psiID == 0)
									type = "(PAT)";

								else if (ts_pid == 1 && payload_psiID == 1)
									type = "(CAT)"; 

								else if (ts_pid == 2 && payload_psiID == 3)
									type = "(TSDT)"; 

								else if (ts_pid == 0x10 && (payload_psiID == 6 || payload_psiID == 0x40 || payload_psiID == 0x41))
									type = "(NIT)"; 

								else if (ts_pid == 0x11 && (payload_psiID == 0x42 || payload_psiID == 0x46))
									type = "(SDT)"; 

								else if (ts_pid == 0x11 && payload_psiID == 0x4A)
									type = "(BAT)"; 

								else if (ts_pid == 0x12 && payload_psiID >= 0x4E && payload_psiID <= 0x6F)
									type = "(EIT)"; 

								else if (ts_pid == 0x13 && payload_psiID == 0x71)
									type = "(RST)"; 

								else if (ts_pid == 0x1F && payload_psiID == 0x7F)
									type = "(SIT)"; 

								else if (ts_pid == 0x1E && payload_psiID == 0x7E)
									type = "(DIT)"; 

								else if (ts_pid == 0x14 && payload_psiID == 0x70)
									type = "(TDS)"; 

								else if (ts_pid == 0x14 && payload_psiID == 0x73)
									type = "(TOT)"; 

								else if (payload_psiID == 0x72 && ts_pid >= 0x10 && ts_pid <= 0x14)
									type = "(ST)"; 

								else
								{
									switch (payload_psiID)
									{
									case 2: 
										type = "(PMT)"; 
										break;

									case 4: 
										type = "(PSI)"; 
										break;

									case 0x82: 
										type = "(EMM)"; 
										break;

									case 0x80:
									case 0x81:
									case 0x83:
									case 0x84: 
										type = "(ECM)"; 
										break;

									case 0x40: 
									case 0x41: 
									case 0x42: 
									case 0x43: 
									case 0x44: 
									case 0x45: 
									case 0x47: 
									case 0x48: 
									case 0x49: 
									case 0x4B: 
									case 0x4C: 
									case 0x4D: 
									case 0xFF: 
										type = "(res.)"; 
										break;

									default:
										if ((payload_psiID >= 4 && payload_psiID <= 0x3F) || (payload_psiID >= 0x74 && payload_psiID <= 0x7D))
										{
											type = "(res.)"; 
											break;
										}

										if (payload_psiID >= 0x80 && payload_psiID < 0xFF)
										{
											type = "(user def. 0x" + Integer.toHexString(payload_psiID).toUpperCase() + ")"; 
											break;
										}
	
										type += "(payload: ";

										for (int j = 0; j < 8; j++)
										{
											String val = Integer.toHexString((0xFF & ts_packet[4 + ts_adaptionfieldlength + j])).toUpperCase();
											type += " " + (val.length() < 2 ? ("0" + val) : val);
										}

										type += " ..)";
									}
								}

								if (ts_scrambling > 0 && !IgnoreScrambledPackets)
								{
									type += " (0x" + Long.toHexString(count - TS_PacketLength).toUpperCase() + " #" + packet + ") ";  // pos + packno

									if (!streambuffer.getScram()) 
										Common.setMessage(Resource.getString("parseTS.scrambled.notignored", Common.adaptString(Integer.toHexString(ts_pid).toUpperCase(), 4), type));

									streambuffer.setScram(true);
									streambuffer.setStarted(false);
									streambuffer.setID(-1);
									streambuffer.reset();

									continue loop;
								}

								type += " (" + (count - TS_PacketLength) + " #" + packet + ") ";  // pos + packno
								Common.setMessage("!> PID 0x" + Common.adaptString(Integer.toHexString(ts_pid).toUpperCase(), 4) + " " + type + Resource.getString("parseTS.ignored"));

								if (!BlindSearch || type.indexOf("pay") == -1)
									streambuffer.setneeded(false);

								else
									streambuffer.setID(-1);

								continue loop;
							}
						}

						//check dynamic PMT here, filtered PMT-PID is not discarded
						if (checkDynamicPMT(ts_pid))
						{
							streambuffer.reset();
							// buffer actual packet data
							streambuffer.writeData(ts_packet, 4 + ts_adaptionfieldlength, 184 - ts_adaptionfieldlength);

							continue loop;
						}
						//

						if (streambuffer.getDemux() == -1 || !streambuffer.isneeded())
							continue loop;

						streamdemultiplexer = (StreamDemultiplexer) demuxList.get(streambuffer.getDemux());

						/**
						 * pes_packet completed
						 */
						if (streamdemultiplexer.StreamEnabled())
						{
							pes_packet = streambuffer.getData().toByteArray();

							if (pes_packet.length < 6)
							{
								if (streamdemultiplexer.getPackCount() != -1) 
									Common.setMessage(Resource.getString("parseTS.lackof.pes", Common.adaptString(Integer.toHexString(ts_pid).toUpperCase(), 4)));
							}

							else if (CommonParsing.validateStartcode(pes_packet, 0) < 0)
								Common.setMessage("!> PID 0x" + Common.adaptString(Integer.toHexString(ts_pid).toUpperCase(), 4) + " - invalid start_code of buffered packet..");

							else
							{
								pes_payloadlength = CommonParsing.getPES_LengthField(pes_packet, 0);
								pes_packetlength = pes_packetoffset + pes_payloadlength;
								pes_ID = streamdemultiplexer.getID();

								/**
								 * non video packet size usually < 0xFFFF
								 */
								if (streamdemultiplexer.getType() != CommonParsing.MPEG_VIDEO)
								{
									if (action == CommonParsing.ACTION_DEMUX)
											streamdemultiplexer.write(job_processing, pes_packet, 0, pes_packetlength, true);

									else
										streamconverter.write(job_processing, pes_packet, streamdemultiplexer, next_CUT_BYTEPOSITION, CommonParsing.isInfoScan(), CutpointList);
								}

								/**
								 * special handling, video packet is possibly greater than 0xffff max. size 
								 */
								else
								{
									pes_packetlength = action == CommonParsing.ACTION_DEMUX ? 0xFFFC : 0x1800;

									for (int i = 0, j, pes_remaininglength = pes_packetlength, flags = (0xF3 & pes_packet[6])<<16; i < pes_packet.length; i += pes_remaininglength)
									{
										if (pes_packet.length - i < pes_remaininglength)
											pes_remaininglength = pes_packet.length - i;

										if (i == 0)
										{
											CommonParsing.setPES_LengthField(pes_packet, i, pes_remaininglength - pes_packetoffset);

											if (action == CommonParsing.ACTION_DEMUX)
											{
												streamdemultiplexer.writeVideo(job_processing, pes_packet, i, pes_remaininglength, true, CutpointList, ChapterpointList);
												job_processing.setCutByteposition(next_CUT_BYTEPOSITION);
											}

											else
												streamconverter.write(job_processing, pes_packet, i, streamdemultiplexer, next_CUT_BYTEPOSITION, CommonParsing.isInfoScan(), CutpointList);
										}

										else
										{
											j = i - pes_headerlength;

											CommonParsing.setValue(pes_packet, j, 4, !CommonParsing.BYTEREORDERING, 0x100 | pes_ID);
											CommonParsing.setPES_LengthField(pes_packet, j, pes_remaininglength + 3);
											CommonParsing.setValue(pes_packet, j + pes_packetoffset, 3, !CommonParsing.BYTEREORDERING, flags);

											if (action == CommonParsing.ACTION_DEMUX)
											{
												streamdemultiplexer.writeVideo(job_processing, pes_packet, j, pes_remaininglength + 3, true, CutpointList, ChapterpointList);
												job_processing.setCutByteposition(next_CUT_BYTEPOSITION);
											}

											else
												streamconverter.write(job_processing, pes_packet, j, streamdemultiplexer, next_CUT_BYTEPOSITION, CommonParsing.isInfoScan(), CutpointList);
										}
									}
								}
							}
						}

						pes_packet = null;
						streambuffer.reset();

						// buffer actual packet data
						streambuffer.writeData(ts_packet, 4 + ts_adaptionfieldlength, 184 - ts_adaptionfieldlength);
					}

					clv[5]++;

					if (action != CommonParsing.ACTION_DEMUX) 
						job_processing.setLastHeaderBytePosition(count);

					/**
					 * split size reached 
					 */
					if (job_processing.getSplitSize() > 0 && job_processing.getSplitSize() < job_processing.getAllMediaFilesExportLength()) 
						break loop;
				}

				/**
				 * split size reached 
				 */
				if (job_processing.getSplitSize() > 0 && job_processing.getSplitSize() < job_processing.getAllMediaFilesExportLength()) 
					break bigloop;

				/**
				 * more files 
				 */
				if (job_processing.getFileNumber() < collection.getPrimaryInputFileSegments() - 1)
				{ 
					inputstream.close();
					//System.gc();

					//comag
					long startoffset = checkNextComagSegment(collection, job_processing.getFileNumber());

					if (startoffset == 0)
						startoffset = checkNextJepssenKoscomSegment(collection, job_processing.getFileNumber(), bytes_read);

					XInputFile nextXInputFile = (XInputFile) collection.getInputFile(job_processing.countFileNumber(+1));
					TSType192 = nextXInputFile.getStreamInfo().getStreamSubType() == CommonParsing.TS_TYPE_192BYTE >>> 8;

					count = size + startoffset;

					inputstream = new PushbackInputStream(nextXInputFile.getInputStream(startoffset), PushbackBufferSize);

					size += nextXInputFile.length();
					base = count;

					addCellTimeFromFileSegment(job_processing);

					Common.setMessage(Resource.getString("parseTS.actual.vframes") + " " + job_processing.getExportedVideoFrameNumber());
					Common.setMessage(Resource.getString("parseTS.switch.to") + " " + nextXInputFile + " (" + Common.formatNumber(nextXInputFile.length()) + " bytes) @ " + base);

					Common.updateProgressBar((action == CommonParsing.ACTION_DEMUX ? Resource.getString("parseTS.demuxing") : Resource.getString("parseTS.converting")) + " " + Resource.getString("parseTS.dvb.mpeg") + " " + nextXInputFile.getName());

					if (JoinPackets && bytes_read < TS_PacketLength && nextXInputFile.length() >= TS_BufferSize - bytes_read)
					{
						ts_isIncomplete = true;
						bytes_read = inputstream.read(ts_packet, bytes_read, TS_BufferSize - bytes_read);

						Common.setMessage(Resource.getString("parseTS.tryto.complete"));
					}
				}

				else 
					break bigloop;
			}

			Common.setMessage(Resource.getString("parseTS.packs", String.valueOf(clv[5]), String.valueOf(count * 100 / size), String.valueOf(count)));
	
			/**
			 * file end reached for split 
			 */
			if ( (count >= size || ende) && job_processing.getSplitSize() > 0 ) 
				job_processing.setSplitLoopActive(false);

			inputstream.close(); 

			vptslog = processElementaryStreams(vptslog, action, clv, collection, job_processing);

			loadUsablePids(collection);

		} catch (IOException e2) { 

			Common.setExceptionMessage(e2);
		}

		return vptslog;
	}


	/**
	 * on InfoScan load usable PIDs in pidlist, if list was empty 
	 */
	private void loadUsablePids(JobCollection collection)
	{
		if (CommonParsing.isInfoScan() && collection.getPIDCount() == 0)
		{
			collection.addPID(usedPIDs.toArray());

			Common.setActiveCollection(Common.getProcessedCollection());

			/* update pid list of an opened panel */
			Common.getGuiInterface().updateCollectionPanel(Common.getActiveCollection());
		}
	}

	/**
	 * humax .vid workaround, skip special data chunk
	 */
	private boolean skipLeadingHumaxDataChunk(byte[] ts_packet)
	{
		boolean b = false;
		int chunk_size = 1184;

		if (!HumaxAdaption)
			return b;

		if (ts_packet[0] != 0x7F || ts_packet[1] != 0x41 || ts_packet[2] != 4 || ts_packet[3] != (byte)0xFD)
			return b;

		try {
			inputstream.skip(chunk_size - TS_BufferSize);
			inputstream.read(ts_packet, 0, TS_BufferSize);
			count += chunk_size;

			return !b;

		} catch (IOException e) {
			Common.setExceptionMessage(e);
		}

		return b;
	}

	/**
	 * Jepssen .vid workaround, skip special data chunk
	 */
	private boolean skipLeadingJepssenDataChunk(byte[] ts_packet)
	{
		boolean b = false;
		int chunk_size = 36;
		int value;

		if (!JepssenAdaption)
			return b;

		if (ts_packet[2] != 0 || ts_packet[3] != 0 || ts_packet[4] != 0 || ts_packet[36] != TS_SyncByte)
			return b;

		try {
			if (Debug)
			{
				value = CommonParsing.getIntValue(ts_packet, 0, 3, !CommonParsing.BYTEREORDERING);
				System.out.println("Jepssen hd chunk: " + value);
			}

			inputstream.unread(ts_packet, chunk_size, TS_BufferSize - chunk_size);
			inputstream.read(ts_packet, 0, TS_BufferSize);
			count += chunk_size;

			return !b;

		} catch (IOException e) {
			Common.setExceptionMessage(e);
		}

		return b;
	}

	/**
	 * Koscom .vid workaround, skip special data chunk
	 */
	private boolean skipLeadingKoscomDataChunk(byte[] ts_packet)
	{
		boolean b = false;
		int chunk_size = 4;

		if (!KoscomAdaption)
			return b;

		if (ts_packet[2] != 0 || ts_packet[3] != 0 || ts_packet[4] != TS_SyncByte)
			return b;

		try {

			inputstream.unread(ts_packet, chunk_size, TS_BufferSize - chunk_size);
			inputstream.read(ts_packet, 0, TS_BufferSize);
			count += chunk_size;

			return !b;

		} catch (IOException e) {
			Common.setExceptionMessage(e);
		}

		return b;
	}

	/**
	 * finepass+handan .hav workaround, chunks fileposition index (hdd sectors) unused, because a file can be hard-cut anywhere
	 */
	private boolean skipLeadingHandanDataChunk(byte[] ts_packet)
	{
		boolean b = false;
		int chunk_size = 0x200;
		int i = TS_PacketLength;
		int j;
		int k = TS_BufferSize;
		int l = hav_chunk.length;

		if (!HandanAdaption)
			return b;

		if (ts_packet[0] != TS_SyncByte || ts_packet[TS_PacketLength] == TS_SyncByte)
			return b;

		while (i > 0)
		{
			j = 0;

			while (i > 0 && ts_packet[i] != hav_chunk[j])
				i--;

			for ( ; i > 0 && j < l && i + j < k; j++)
				if (ts_packet[i + j] != hav_chunk[j])
					break;

			/**
			 * found at least one byte of chunk
			 */
			if (j > 0)
			{
				/** ident of chunk doesnt match completely */
				if (j < l && i + j < k)
				{
					i--;
					continue;
				}

				try {
					inputstream.skip(chunk_size - (k - i));
					inputstream.read(ts_packet, i, k - i);

					count += chunk_size;

					return !b;

				} catch (IOException e) {
					Common.setExceptionMessage(e);
				}

				break;
			}
		}

		return b;
	}

	/**
	 * humax .vid workaround, skip special data chunk
	 */
	private boolean skipHumaxDataChunk(byte[] ts_packet)
	{
		boolean b = false;

		if (!HumaxAdaption)
			return b;

		if (ts_packet[0] != TS_SyncByte || ts_packet[TS_PacketLength] != 0x7F)
			return b;

		return !b;
	}

	/**
	 * Jepssen .vid workaround, skip special data chunk
	 */
	private boolean skipJepssenDataChunk(byte[] ts_packet)
	{
		boolean b = false;
		int value;
		int chunk_size = 36;

		if (!JepssenAdaption)
			return b;

		if (ts_packet[TS_PacketLength] == TS_SyncByte)
			return b;

		try {
			inputstream.read(tmp_chunk, 0, chunk_size);

			// hdd padding chunk 36 bytes , 0 + 1 psb. chunk_no.
			if (tmp_chunk[2] == 0 && tmp_chunk[3] == 0 && tmp_chunk[35] == TS_SyncByte)
			{
				if (Debug)
				{
					value = (0xFF & tmp_chunk[1])<<16 | (0xFF & tmp_chunk[0])<<8 | (0xFF & ts_packet[TS_PacketLength]);
					System.out.println("Jepssen hd chunk: " + value);
				}

				ts_packet[TS_PacketLength] = TS_SyncByte;
				count += chunk_size;

				return !b;
			}

			else
				inputstream.unread(tmp_chunk, 0, chunk_size);

		} catch (IOException e) {
			Common.setExceptionMessage(e);
		}

		return b;
	}

	/**
	 * Koscom .vid workaround, skip special data chunk
	 */
	private boolean skipKoscomDataChunk(byte[] ts_packet)
	{
		boolean b = false;
		int chunk_size = 4;

		if (!KoscomAdaption)
			return b;

		if (ts_packet[TS_PacketLength] == TS_SyncByte)
			return b;

		try {
			inputstream.read(tmp_chunk, 0, chunk_size);

			// hdd padding chunk 4 bytes , 0 + 1 psb. chunk_no.
			if (tmp_chunk[1] == 0 && tmp_chunk[2] == 0 && tmp_chunk[3] == TS_SyncByte)
			{
				ts_packet[TS_PacketLength] = TS_SyncByte;
				count += chunk_size;

				return !b;
			}

			else
				inputstream.unread(tmp_chunk, 0, chunk_size);

		} catch (IOException e) {
			Common.setExceptionMessage(e);
		}

		return b;
	}

	/**
	 *
	 */
	private long checkNextJepssenKoscomSegment(JobCollection collection, int filenumber, int bytes_read)
	{
		if (!JepssenAdaption && !KoscomAdaption)
			return 0;

		byte[] nextsegment = new byte[200];
		long startoffset = 0x3C2E0L;
		int offset = JepssenAdaption ? 4 : 68;

		if (filenumber < collection.getPrimaryInputFileSegments() - 1)
		{
			try {

				((XInputFile) collection.getInputFile(filenumber + 1)).randomAccessSingleRead(nextsegment, startoffset);

				for (int i = 0; i < offset; i++)
					if (nextsegment[i] != 0)
						return 0;

				if (nextsegment[offset + TS_PacketLength - bytes_read] == TS_SyncByte)
					return (startoffset + offset);

			} catch (IOException e) {

				Common.setExceptionMessage(e);
			}
		}

		return 0;
	}

	/**
	 *
	 */
	private long checkNextComagSegment(JobCollection collection, int filenumber)
	{
		XInputFile cXInputFile = (XInputFile) collection.getInputFile(filenumber);

		if (cXInputFile.getStreamInfo().getStreamSubType() != CommonParsing.TS_TYPE_COMAG >>> 8)
			return 0;

		int segment_length = 0xBC00;
		byte[] lastsegment = new byte[segment_length];
		byte[] nextsegment = new byte[segment_length];
		long startoffset = 0x10000L;

		if (filenumber < collection.getPrimaryInputFileSegments() - 1)
		{
			try {

				cXInputFile.randomAccessSingleRead(lastsegment, cXInputFile.length() - segment_length);

				XInputFile nXInputFile = (XInputFile) collection.getInputFile(filenumber + 1);

				if (nXInputFile.getStreamInfo().getStreamSubType() != CommonParsing.TS_TYPE_COMAG >>> 8)
					return 0;

				nXInputFile.randomAccessSingleRead(nextsegment, startoffset);

				for (int i = 0; i < segment_length; i++)
					if (nextsegment[i] != lastsegment[i])
						return (startoffset + i);

				return (startoffset + segment_length);

			} catch (IOException e) {

				Common.setExceptionMessage(e);
			}
		}

		return startoffset;
	}

	/**
	 * check dynamic PMT for PID changes, at split output not yet handled
	 */
	private boolean checkDynamicPMT(int pid)
	{
		//if (pmt_parser == null || pid != pmt_parser.getPID())
			return false;

		//int ret = pmt_parser.parsePMT(streambuffer.getData().toByteArray());

		//Common.setMessage("AA " + ret);
		//TSPidList
		
		// edit pid values here, pts reset in demuxers required

		//return true;
	}


	/**
	 *
	 */
	private void getEventInfo(XInputFile xif)
	{
		int fulltype = xif.getStreamInfo().getStreamFullType();
		int	offset = 0;

		if (fulltype == CommonParsing.TS_TYPE_TF5X00)
			offset = 4;

		else if (fulltype == CommonParsing.TS_TYPE_TF5X00C)
			offset = 0;

		else
		{
			TS.setEventInfo(null, null, null);
			return;
		}

		int length = 0xEB0;
		byte[] data = new byte[length];

		try {

			Common.setMessage("-> fetching event info ");

			xif.randomAccessSingleRead(data, 0);

			byte[] data1 = new byte[24];
			System.arraycopy(data, 0x1C, data1, 0, 24);

			byte[] data2 = new byte[131];
			System.arraycopy(data, offset + 0x51, data2, 0, 131);

			byte[] data3 = new byte[1164];
			System.arraycopy(data, offset + 0xE0, data3, 0, 1164);

			TS.setEventInfo(data1, data2, data3);

			Common.setMessage("-> event info cached from TF5X00 header " + (offset == 0 ? "DVB-C" : "DVB-S/T"));

		} catch (Exception e) {
			Common.setMessage("!> error fetching event info from TF header");
		}
	}
}
