private PesPacket CheckAndFixDiscontinuities(PesPacket pp)
{
// checks for PTS/DTS discontinuities
PesHeader ph = pp.GetHeader();
byte[] data = pp.GetData();
int len = ph.TotalHeaderLength;
int i = len;
UInt32 marker = 0xffffffff;
if (Constants.DEFAULT_VIDEO_PID == pidMappings[pp.PID])
{
// checks for end of stream headers
switch (VideoType)
{
case (byte)ElementaryStreamTypes.VIDEO_STREAM_VC1:
for (; i < data.Length; i++)
{
marker <<= 8;
marker |= data[i];
if (marker == Constants.VC1_END_OF_STREAM)
break;
}
if (i < data.Length)
{
// we have an end of stream marker
i -= 3;
PesPacket pnew = new PesPacket(data, 0, i, pp.PID);
i += 4;
pnew.AddData(data, i, data.Length - i);
pp = pnew;
ph = pp.GetHeader();
data = pp.GetData();
}
break;
case (byte)ElementaryStreamTypes.VIDEO_STREAM_MPEG2:
for (; i < data.Length; i++)
{
marker <<= 8;
marker |= data[i];
if (marker == Constants.MPEG2_SEQ_END)
break;
}
if (i < data.Length)
{
// we have an end of stream marker
i -= 3;
PesPacket pnew = new PesPacket(data, 0, i, pp.PID);
i += 4;
pnew.AddData(data, i, data.Length - i);
pp = pnew;
ph = pp.GetHeader();
data = pp.GetData();
}
break;
case (byte)ElementaryStreamTypes.VIDEO_STREAM_H264:
for (; i < data.Length; i++)
{
marker <<= 8;
marker |= data[i];
if ((marker & 0xffffff9f) == Constants.H264_END_OF_STREAM)
break;
}
if (i < data.Length)
{
// we have an end of stream marker
i -= 3;
PesPacket pnew = new PesPacket(data, 0, i, pp.PID);
i += 4;
pnew.AddData(data, i, data.Length - i);
pp = pnew;
ph = pp.GetHeader();
data = pp.GetData();
}
break;
}
if (ph.HasPts)
{
lastPts = currentPts;
currentPts = ph.Pts;
ptsCount = ptsDelta;
ptsDelta = currentPts - lastPts;
if (lastPts != -1)
{
if (ptsDelta < (0 - (Constants.PTS_CLOCK_RATE << 2)) ||
ptsDelta > (Constants.PTS_CLOCK_RATE << 2))
{
ptsOffset += (lastPts + ptsCount - currentPts);
}
}
}
// build EP Map info
marker = 0xffffffff;
switch (VideoType)
{
case (byte)ElementaryStreamTypes.VIDEO_STREAM_VC1:
for (i = ph.TotalHeaderLength; i < data.Length; i++)
{
marker <<= 8;
marker |= data[i];
if (marker == Constants.VC1_SEQ_SC && ph.HasPts)
{
EpElement ep = new EpElement(ph.Pts, this.CurrentPacketNumber);
epData.Add(ep);
break;
}
}
break;
case (byte)ElementaryStreamTypes.VIDEO_STREAM_MPEG2:
for (i = ph.TotalHeaderLength; i < data.Length; i++)
{
marker <<= 8;
marker |= data[i];
if (marker == Constants.MPEG2_SEQ_CODE && ph.HasPts)
{
EpElement ep = new EpElement(ph.Pts, this.CurrentPacketNumber);
epData.Add(ep);
break;
}
}
break;
case (byte)ElementaryStreamTypes.VIDEO_STREAM_H264:
for (i = ph.TotalHeaderLength; i < data.Length; i++)
{
marker <<= 8;
marker |= data[i];
if ((marker & 0xffffff9f) == Constants.H264_PREFIX && ph.HasPts)
{
EpElement ep = new EpElement(ph.Pts, this.CurrentPacketNumber);
epData.Add(ep);
break;
}
}
break;
}
}
if (ph.HasPts && ptsOffset != 0)
{
Int64 time = ph.Pts + ptsOffset;
if (time < 0)
time += Constants.MAX_PTS_CLOCK;
else if (time > Constants.MAX_PTS_CLOCK)
time -= Constants.MAX_PTS_CLOCK;
ph.Pts = time;
for (i = 9; i < 14; i++)
pp[i] = ph[i]; // copy PTS
if (ph.HasDts)
{
time = ph.Dts + ptsOffset;
if (time < 0)
time += Constants.MAX_PTS_CLOCK;
else if (time > Constants.MAX_PTS_CLOCK)
time -= Constants.MAX_PTS_CLOCK;
ph.Dts = time;
for (i = 14; i < 19; i++)
pp[i] = ph[i]; // copy DTS
}
}
lastPacket = pp;
return pp;
}
private PesPacket CheckAndFixDiscontinuities(PesPacket pp)
{
// checks for PTS/DTS discontinuities
PesHeader ph = pp.GetHeader();
byte[] data = pp.GetData();
int len = ph.TotalHeaderLength;
int i = len;
UInt32 marker = 0xffffffff;
if (Constants.DEFAULT_VIDEO_PID == pidMappings[pp.PID])
{
// checks for end of stream headers
switch (VideoType)
{
case (byte)ElementaryStreamTypes.VIDEO_STREAM_VC1:
for (; i < data.Length; i++)
{
marker <<= 8;
marker |= data[i];
if (marker == Constants.VC1_END_OF_STREAM)
{
break;
}
}
if (i < data.Length)
{
// we have an end of stream marker
i -= 3;
PesPacket pnew = new PesPacket(data, 0, i, pp.PID);
i += 4;
pnew.AddData(data, i, data.Length - i);
pp = pnew;
ph = pp.GetHeader();
data = pp.GetData();
}
break;
case (byte)ElementaryStreamTypes.VIDEO_STREAM_MPEG2:
for (; i < data.Length; i++)
{
marker <<= 8;
marker |= data[i];
if (marker == Constants.MPEG2_SEQ_END)
{
break;
}
}
if (i < data.Length)
{
// we have an end of stream marker
i -= 3;
PesPacket pnew = new PesPacket(data, 0, i, pp.PID);
i += 4;
pnew.AddData(data, i, data.Length - i);
pp = pnew;
ph = pp.GetHeader();
data = pp.GetData();
}
break;
case (byte)ElementaryStreamTypes.VIDEO_STREAM_H264:
for (; i < data.Length; i++)
{
marker <<= 8;
marker |= data[i];
if ((marker & 0xffffff9f) == Constants.H264_END_OF_STREAM)
{
break;
}
}
if (i < data.Length)
{
// we have an end of stream marker
i -= 3;
PesPacket pnew = new PesPacket(data, 0, i, pp.PID);
i += 4;
pnew.AddData(data, i, data.Length - i);
pp = pnew;
ph = pp.GetHeader();
data = pp.GetData();
}
break;
}
if (ph.HasPts)
{
lastPts = currentPts;
currentPts = ph.Pts;
ptsCount = ptsDelta;
ptsDelta = currentPts - lastPts;
if (lastPts != -1)
{
if (ptsDelta < (0 - (Constants.PTS_CLOCK_RATE << 2)) ||
ptsDelta > (Constants.PTS_CLOCK_RATE << 2))
{
ptsOffset += (lastPts + ptsCount - currentPts);
}
}
}
// build EP Map info
marker = 0xffffffff;
switch (VideoType)
{
case (byte)ElementaryStreamTypes.VIDEO_STREAM_VC1:
for (i = ph.TotalHeaderLength; i < data.Length; i++)
{
marker <<= 8;
marker |= data[i];
if (marker == Constants.VC1_SEQ_SC && ph.HasPts)
{
EpElement ep = new EpElement(ph.Pts, this.CurrentPacketNumber);
epData.Add(ep);
break;
}
}
break;
case (byte)ElementaryStreamTypes.VIDEO_STREAM_MPEG2:
for (i = ph.TotalHeaderLength; i < data.Length; i++)
{
marker <<= 8;
marker |= data[i];
if (marker == Constants.MPEG2_SEQ_CODE && ph.HasPts)
{
EpElement ep = new EpElement(ph.Pts, this.CurrentPacketNumber);
epData.Add(ep);
break;
}
}
break;
case (byte)ElementaryStreamTypes.VIDEO_STREAM_H264:
for (i = ph.TotalHeaderLength; i < data.Length; i++)
{
marker <<= 8;
marker |= data[i];
if ((marker & 0xffffff9f) == Constants.H264_PREFIX && ph.HasPts)
{
EpElement ep = new EpElement(ph.Pts, this.CurrentPacketNumber);
epData.Add(ep);
break;
}
}
break;
}
}
if (ph.HasPts && ptsOffset != 0)
{
Int64 time = ph.Pts + ptsOffset;
if (time < 0)
{
time += Constants.MAX_PTS_CLOCK;
}
else if (time > Constants.MAX_PTS_CLOCK)
{
time -= Constants.MAX_PTS_CLOCK;
}
ph.Pts = time;
for (i = 9; i < 14; i++)
{
pp[i] = ph[i]; // copy PTS
}
if (ph.HasDts)
{
time = ph.Dts + ptsOffset;
if (time < 0)
{
time += Constants.MAX_PTS_CLOCK;
}
else if (time > Constants.MAX_PTS_CLOCK)
{
time -= Constants.MAX_PTS_CLOCK;
}
ph.Dts = time;
for (i = 14; i < 19; i++)
{
pp[i] = ph[i]; // copy DTS
}
}
}
lastPacket = pp;
return(pp);
}
byte[] BuildClipInfo(UInt32 numOfSourcePackets, EpElement[] EpInfo)
{
List<byte> clip = new List<byte>();
List<byte> temp = new List<byte>();
clip.Add(0x00);
clip.Add(0x00);
clip.Add(0x01);
clip.Add(0x01);
clip.Add(0x00);
clip.Add(0x00);
clip.Add(0x00);
clip.Add(0x00);
Int64 rate = EpInfo[EpInfo.Length - 1].SPN - EpInfo[0].SPN;
rate *= 192;
rate /= ((EpInfo[EpInfo.Length - 1].PTS - EpInfo[0].PTS) / 90000);
clip.AddRange(UintToByteArraryNetwork((UInt32)rate));
clip.AddRange(UintToByteArraryNetwork(numOfSourcePackets));
for (int i = 0; i < 128; i++)
clip.Add(0x00);
clip.AddRange(TsTypeInfoBlock);
UInt32 len = (UInt32)clip.Count;
temp.AddRange(UintToByteArraryNetwork(len));
temp.AddRange(clip);
return temp.ToArray();
}
byte[] BuildEpMap(EpElement[] EpInfo)
{
UInt32 lastepfine = 0x7ff;
UInt32 lastspnfine = 0x1ffff;
UInt32 numofcoarse = 0;
List<byte> coarseloop = new List<byte>();
List<byte> fineloop = new List<byte>(EpInfo.Length);
List<byte> EpMap = new List<byte>();
for (int i = 0; i < EpInfo.Length; i++)
{
UInt32 epfine = (UInt32)((EpInfo[i].PTS >> 9) % 0x800);
UInt32 epcoarse = (UInt32)((EpInfo[i].PTS >> 19) % 0x4000);
UInt32 spnfine = EpInfo[i].SPN % 0x20000;
if (lastepfine > epfine || lastspnfine > spnfine)
{
UInt32 reftofine = (UInt32)i;
reftofine <<= 14;
reftofine |= epcoarse;
coarseloop.AddRange(UintToByteArraryNetwork(reftofine));
coarseloop.AddRange(UintToByteArraryNetwork(EpInfo[i].SPN));
numofcoarse++;
}
UInt32 value = 0x1000;
value |= (epfine << 17);
value |= spnfine;
fineloop.AddRange(UintToByteArraryNetwork(value));
lastepfine = epfine;
lastspnfine = spnfine;
}
EpMap.Add(0x00);
EpMap.Add(0x01);
EpMap.Add((byte)((Constants.DEFAULT_VIDEO_PID >> 8) & 0xff));
EpMap.Add((byte)(Constants.DEFAULT_VIDEO_PID & 0xff));
EpMap.Add(0x00);
byte btemp = 4;
btemp |= (byte)((numofcoarse >> 14) & 0xff);
EpMap.Add(btemp);
btemp = (byte)((numofcoarse >> 6) & 0xff);
EpMap.Add(btemp);
btemp = (byte)((numofcoarse & 0x3f) << 2);
btemp |= (byte)((EpInfo.Length >> 16) & 0x03);
EpMap.Add(btemp);
btemp = (byte)((EpInfo.Length >> 8) & 0xff);
EpMap.Add(btemp);
btemp = (byte)(EpInfo.Length& 0xff);
EpMap.Add(btemp);
UInt32 count = 4 + (UInt32)EpMap.Count;
EpMap.AddRange(UintToByteArraryNetwork(count));
UInt32 start = 4 + (UInt32)coarseloop.Count;
EpMap.AddRange(UintToByteArraryNetwork(start));
EpMap.AddRange(coarseloop);
EpMap.AddRange(fineloop);
return EpMap.ToArray();
}
public void Author(EpElement[] EpInfo, StreamInfo[] sis, UInt32 numOfSourcePackets)
{
List<ushort> Pids = new List<ushort>();
List<byte[]> StreamCodingInfos = new List<byte[]>();
List<byte[]> AudioEntries = new List<byte[]>();
List<byte[]> AudioAttributes = new List<byte[]>();
List<byte[]> PgEntries = new List<byte[]>();
List<byte[]> PgAttributes = new List<byte[]>();
byte[] VideoEntry = null;
byte[] VideoAttribute = null;
ElementaryStreamTypes VideoType = ElementaryStreamTypes.INVALID;
foreach(StreamInfo si in sis)
{
switch (si.StreamType)
{
case ElementaryStreamTypes.AUDIO_STREAM_AC3:
case ElementaryStreamTypes.AUDIO_STREAM_AC3_PLUS:
case ElementaryStreamTypes.AUDIO_STREAM_AC3_TRUE_HD:
case ElementaryStreamTypes.AUDIO_STREAM_DTS:
case ElementaryStreamTypes.AUDIO_STREAM_DTS_HD:
case ElementaryStreamTypes.AUDIO_STREAM_DTS_HD_MASTER_AUDIO:
case ElementaryStreamTypes.AUDIO_STREAM_LPCM:
case ElementaryStreamTypes.AUDIO_STREAM_MPEG1:
case ElementaryStreamTypes.AUDIO_STREAM_MPEG2:
byte[] AudioEntry = BuildStreamEntry(si.ElementaryPID);
byte[] AudioAttribute = BuildAudioStreamAttributes((byte)si.StreamType,si.AudioPresentationType,si.SamplingFrequency);
AudioEntries.Add(AudioEntry);
AudioAttributes.Add(AudioAttribute);
byte[] AudioCodingInfo = BuildAudioStreamCodingInfo(si.StreamType, si.AudioPresentationType, si.SamplingFrequency);
Pids.Add(si.ElementaryPID);
StreamCodingInfos.Add(AudioCodingInfo);
break;
case ElementaryStreamTypes.VIDEO_STREAM_H264:
case ElementaryStreamTypes.VIDEO_STREAM_MPEG1:
case ElementaryStreamTypes.VIDEO_STREAM_MPEG2:
case ElementaryStreamTypes.VIDEO_STREAM_VC1:
VideoType = si.StreamType;
VideoEntry = BuildStreamEntry(si.ElementaryPID);
VideoAttribute = BuildVideoStreamAttributes((byte)si.StreamType,si.VideoFormat,si.FrameRate);
byte[] VideoCodingInfo = BuildVideoStreamCodingInfo(si.StreamType, si.VideoFormat, si.FrameRate, si.AspectRatio);
Pids.Add(si.ElementaryPID);
StreamCodingInfos.Add(VideoCodingInfo);
break;
case ElementaryStreamTypes.PRESENTATION_GRAPHICS_STREAM:
byte[] PgEntry = BuildStreamEntry(si.ElementaryPID);
PgEntries.Add(PgEntry);
PgAttributes.Add(PgStreamAttributes);
byte[] PgCodingInfo = BuildPgStreamCodingInfo();
Pids.Add(si.ElementaryPID);
StreamCodingInfos.Add(PgCodingInfo);
break;
}
}
byte[][] PlayItems = new byte[1][];
UInt32 Start = (UInt32)((EpInfo[0].PTS >> 1) & 0xffffffff);
UInt32 End = (UInt32)((EpInfo[EpInfo.Length - 1].PTS >> 1) & 0xffffffff);
UInt32 Interval = ((UInt32)(chapterLen.TotalMinutes)) * 2700000;
byte[] StnTable = BuildStnTable(VideoEntry, VideoAttribute, AudioEntries.ToArray(), AudioAttributes.ToArray(), PgEntries.ToArray(), PgAttributes.ToArray());
PlayItems[0] = BuildFirstPlayItem(0, Start, End, StnTable);
byte[] PlayList = BuildPlayList(PlayItems);
byte[] PlayListMark = BuildFirstPlayMarks(Start, End, Interval);
byte[] mlps = Build_mlps(PlayList, PlayListMark);
File.WriteAllBytes(Path.Combine(path, @"BDMV\PLAYLIST\00000.mpls"), mlps);
File.Copy(Path.Combine(path, @"BDMV\PLAYLIST\00000.mpls"), Path.Combine(path, @"BDMV\BACKUP\PLAYLIST\00000.mpls"),true);
byte[] ClipInfo = BuildClipInfo(numOfSourcePackets,EpInfo);
byte[] SequenceInfo = BuildSequenceInfo(Start, End);
byte[] ProgramInf = BuildProgramInfo(Pids.ToArray(), StreamCodingInfos.ToArray());
byte[] EpMap = BuildEpMap(EpInfo);
byte[] CPI = BuildCpi(EpMap);
byte[] clpi = Build_clpi(ClipInfo, SequenceInfo, ProgramInf, CPI);
File.WriteAllBytes(Path.Combine(path, @"BDMV\CLIPINF\00001.clpi"), clpi);
File.Copy(Path.Combine(path, @"BDMV\CLIPINF\00001.clpi"), Path.Combine(path, @"BDMV\BACKUP\CLIPINF\00001.clpi"),true);
}
