public override void PcrChanged(Int64 pcr)
{
lastPcr = currentPcr;
currentPcr = pcr;
Int64 newPcr = -1;
if (lastPcr == -1)
{
pcrOffset = currentPcr - Constants.MPEG2TS_CLOCK_RATE;
newPcr = currentPcr - pcrOffset;
if (newPcr < 0)
newPcr += Constants.MAX_MPEG2TS_CLOCK;
if (newPcr >= Constants.MAX_MPEG2TS_CLOCK)
newPcr -= Constants.MAX_MPEG2TS_CLOCK;
pcrPacket = new PcrPacket(newPcr,0,Constants.DEFAULT_PCR_PID);
PcrPacket pp = new PcrPacket(newPcr, pcrPacket.ContinuityCounter, Constants.DEFAULT_PCR_PID);
buffer.Add(pp);
return;
}
Int64 delta = currentPcr - lastPcr;
if (delta < 0)
delta += Constants.MAX_MPEG2TS_CLOCK;
if (delta > Constants.MPEG2TS_CLOCK_RATE)
{
// discontinuity - adjust offset
Int64 predictedPcr = lastPcr + (buffer.Count * lastDelta);
if (predictedPcr >= Constants.MAX_MPEG2TS_CLOCK)
predictedPcr -= Constants.MAX_MPEG2TS_CLOCK;
pcrOffset += currentPcr - predictedPcr;
pcrPacket.IncrementContinuityCounter();
PcrPacket pp = new PcrPacket(newPcr, pcrPacket.ContinuityCounter, Constants.DEFAULT_PCR_PID);
buffer.Add(pp);
return;
}
newPcr = currentPcr - pcrOffset;
if (newPcr < 0)
newPcr += Constants.MAX_MPEG2TS_CLOCK;
if (newPcr >= Constants.MAX_MPEG2TS_CLOCK)
newPcr -= Constants.MAX_MPEG2TS_CLOCK;
pat.IncrementContinuityCounter();
buffer.Add(new PatPacket(pat.GetData()));
pmt.IncrementContinuityCounter();
buffer.Add(new PmtPacket(pmt.GetData()));
sitCount += 1;
sitCount %= 10;
if (sitCount == 0)
{ // one SIT for every 10 PMT/PAT
sit.IncrementContinuityCounter();
buffer.Add(new SitPacket(sit.GetData()));
}
pcrPacket.IncrementContinuityCounter();
PcrPacket p = new PcrPacket(newPcr, pcrPacket.ContinuityCounter, Constants.DEFAULT_PCR_PID);
buffer.Add(p);
lastDelta = delta / buffer.Count;
Int64 stamp = lastPcr % Constants.MAX_BLURAY_CLOCK;
for (int i = 0; i < buffer.Count; i++)
{
stamp += lastDelta;
stamp %= Constants.MAX_BLURAY_CLOCK;
header[0] = (byte)((stamp >> 24) & 0x3f);
header[1] = (byte)((stamp >> 16) & 0xff);
header[2] = (byte)((stamp >> 8) & 0xff);
header[3] = (byte)(stamp & 0xff);
if (fileType == TsFileType.M2TS || fileType == TsFileType.BLU_RAY)
{
tsiow.Write(header, 0, 4);
tsiow.Write(buffer[i].GetData(), 0, Constants.TS_SIZE);
}
else if (fileType == TsFileType.TS)
{
tsiow.Write(buffer[i].GetData(), 0, Constants.TS_SIZE);
}
}
packetCount += (UInt32)buffer.Count;
buffer.Clear();
}
public BlueMux(string fileName, TsFileType fileType, List<StreamInfo> StreamsToKeep, bool fAsync, bool fProcessAudio, bool fMlpToAc3)
{
fsw = new FileStream(fileName, FileMode.Create, FileAccess.Write, FileShare.None, Constants.DISK_BUFFER, fAsync);
this.tsiow = new TsIo(null, fsw, Constants.DISK_BUFFER);
this.fileType = fileType;
this.StreamsToKeep = StreamsToKeep;
this.buffer = new List<TsPacket>();
this.currentPcr = -1;
this.lastPcr = -1;
this.lastDelta = -1;
this.pcrOffset = -1;
this.lastPts = -1;
this.currentPts = -1;
this.ptsDelta = -1;
this.ptsOffset = 0;
this.ptsCount = -1;
this.pcrPacket = null;
this.header = new byte[4];
this.supHeader = new byte[10];
this.supHeader[0] = (byte)'P';
this.supHeader[1] = (byte)'G';
this.VideoType = 0;
this.lastPacket = null;
this.sitCount = 0;
this.packetCount = 0;
this.epData = new List<EpElement>();
this.pmtStreams = null;
this.lastPtsList = new Dictionary<ushort, long>();
this.soundFrames = new Dictionary<ushort, List<byte>>();
this.processAudio = fProcessAudio;
this.MlpToAc3 = fMlpToAc3;
CreatePsi();
}
