public static void DecodePtsDts(byte[] tsPacket, ulong offset, out Pcr pts, out Pcr dts)
{
pts = new Pcr();
dts = new Pcr();
if ((tsPacket[offset + 7] & 0x80) == 0x80)
{
pts.isValid = true;
if ((tsPacket[offset + 7] & 0x40) == 0x40)
{
dts.isValid = true;
}
}
if (pts.isValid)
{
UInt64 ptsTicks = 0;
UInt64 k;
k = (ulong)((tsPacket[offset + 9] >> 1) & 0x7); k <<= 30; ptsTicks += k; //9: 00101111
k = tsPacket[offset + 10]; k <<= 22; ptsTicks += k; //10:00110001
k = (ulong)(tsPacket[offset + 11] >> 1); k <<= 15; ptsTicks += k; //11:10010001
k = tsPacket[offset + 12]; k <<= 7; ptsTicks += k; //12:11000011
k = (ulong)(tsPacket[offset + 13] >> 1); ptsTicks += k; //13:11010111
pts.ReferenceBase = ptsTicks;
}
if (dts.isValid)
{
UInt64 dtsTicks = 0;
UInt64 k;
k = (ulong)((tsPacket[offset + 14] >> 1) & 0x7); k <<= 30; dtsTicks += k;
k = tsPacket[offset + 15]; k <<= 22; dtsTicks += k;
k = (ulong)(tsPacket[offset + 16] >> 1); k <<= 15; dtsTicks += k;
k = tsPacket[offset + 17]; k <<= 7; dtsTicks += k;
k = (ulong)tsPacket[offset + 18] >> 1; dtsTicks += k;
dts.ReferenceBase = dtsTicks;
}
}
public static void DecodePtsDts(byte[] tsPacket, ulong offset, out Pcr pts, out Pcr dts)
{
pts = new Pcr();
dts = new Pcr();
if ((tsPacket[offset+7] & 0x80) == 0x80)
{
pts.isValid = true;
if ((tsPacket[offset+7] & 0x40) == 0x40)
dts.isValid = true;
}
if (pts.isValid)
{
UInt64 ptsTicks=0;
UInt64 k;
k=(ulong)((tsPacket[offset+9]>>1)&0x7); k <<=30; ptsTicks+=k; //9: 00101111
k= tsPacket[offset+10]; k <<=22; ptsTicks+=k; //10:00110001
k= (ulong)(tsPacket[offset+11]>>1); k <<=15; ptsTicks+=k; //11:10010001
k= tsPacket[offset+12]; k <<=7; ptsTicks+=k; //12:11000011
k= (ulong)(tsPacket[offset+13]>>1); ptsTicks+=k; //13:11010111
pts.ReferenceBase = ptsTicks;
}
if (dts.isValid)
{
UInt64 dtsTicks=0;
UInt64 k;
k=(ulong)((tsPacket[offset+14]>>1)&0x7); k <<=30; dtsTicks+=k;
k= tsPacket[offset+15]; k <<=22; dtsTicks+=k;
k=(ulong)(tsPacket[offset+16]>>1); k <<=15; dtsTicks+=k;
k= tsPacket[offset+17]; k <<=7; dtsTicks+=k;
k= (ulong)tsPacket[offset+18]>>1; dtsTicks+=k;
dts.ReferenceBase = dtsTicks;
}
}
public static void PatchDts(ref byte[] tsPacket, ulong offset, TimeSpan newTimeSpan)
{
Pcr pcr = new Pcr(newTimeSpan);
tsPacket[offset + 18] = (byte)((((pcr.ReferenceBase & 0x7f) << 1) + 1)); pcr.ReferenceBase >>= 7;
tsPacket[offset + 17] = (byte)((pcr.ReferenceBase & 0xff)); pcr.ReferenceBase >>= 8;
tsPacket[offset + 16] = (byte)((((pcr.ReferenceBase & 0x7f) << 1) + 1)); pcr.ReferenceBase >>= 7;
tsPacket[offset + 15] = (byte)((pcr.ReferenceBase & 0xff)); pcr.ReferenceBase >>= 8;
tsPacket[offset + 14] = (byte)((((pcr.ReferenceBase & 7) << 1) + 0x11));
}
public static void PatchPts(ref byte[] tsPacket, ulong offset, TimeSpan newTimeSpan)
{
Pcr pcr = new Pcr(newTimeSpan);
tsPacket[offset + 13] = (byte)((((pcr.ReferenceBase & 0x7f) << 1) + 1)); pcr.ReferenceBase >>= 7;
tsPacket[offset + 12] = (byte)((pcr.ReferenceBase & 0xff)); pcr.ReferenceBase >>= 8;
tsPacket[offset + 11] = (byte)((((pcr.ReferenceBase & 0x7f) << 1) + 1)); pcr.ReferenceBase >>= 7;
tsPacket[offset + 10] = (byte)((pcr.ReferenceBase & 0xff)); pcr.ReferenceBase >>= 8;
tsPacket[offset + 9] = (byte)((((pcr.ReferenceBase & 7) << 1) + 0x31));
}
public PidInfo()
{
shouldCheck = false;
lastPcr = new Pcr();
lastPts = new Pcr();
continuityCounter = 0xFF;
pcrErrorTexts = new List <string>();
ptsErrorTexts = new List <string>();
payloadStartErrorTexts = new List <string>();
}
public PidInfo()
{
shouldCheck = false;
lastPcr = new Pcr();
lastPts = new Pcr();
continuityCounter = 0xFF;
pcrErrorTexts = new List<string>();
ptsErrorTexts = new List<string>();
payloadStartErrorTexts = new List<string>();
}
public static void PatchPcr(ref byte[] tsPacket, TimeSpan newTimeSpan)
{
Pcr pcr = new Pcr(newTimeSpan);
tsPacket[6] = (byte)(((pcr.ReferenceBase >> 25) & 0xff));
tsPacket[7] = (byte)(((pcr.ReferenceBase >> 17) & 0xff));
tsPacket[8] = (byte)(((pcr.ReferenceBase >> 9) & 0xff));
tsPacket[9] = (byte)(((pcr.ReferenceBase >> 1) & 0xff));
tsPacket[10] = (byte)(((pcr.ReferenceBase & 0x1) << 7) + 0x7e + ((pcr.ReferenceExtension >> 8) & 0x1));
tsPacket[11] = (byte)(pcr.ReferenceExtension & 0xff);
}
private void CheckPcr(TsHeader header, byte[] tsPacket, ref PidInfo pi)
{
if (!pi.shouldCheck) return;
if (!PacketContainsPcr(header, tsPacket)) return;
Pcr pcr = new Pcr(tsPacket);
if (pi.lastPcr.isValid)
{
TimeSpan diff = pcr.ToDateTime() - pi.lastPcr.ToDateTime();
if (diff.TotalSeconds > diffAllowed)
{
pi.pcrErrorTexts.Add("last pcr: " + pi.lastPcr.ToDateTime().ToString("HH:MM:ss") + " current pcr: " + pcr.ToDateTime().ToString("HH:MM:ss"));
totalPcrErrors++;
}
}
pi.lastPcr = pcr;
}
private void CheckPcr(TsHeader header, byte[] tsPacket, ref PidInfo pi)
{
if (!pi.shouldCheck)
{
return;
}
if (!PacketContainsPcr(header, tsPacket))
{
return;
}
Pcr pcr = new Pcr(tsPacket);
if (pi.lastPcr.isValid)
{
TimeSpan diff = pcr.ToDateTime() - pi.lastPcr.ToDateTime();
if (diff.TotalSeconds > diffAllowed)
{
pi.pcrErrorTexts.Add("last pcr: " + pi.lastPcr.ToDateTime().ToString("HH:MM:ss") + " current pcr: " + pcr.ToDateTime().ToString("HH:MM:ss"));
totalPcrErrors++;
}
}
pi.lastPcr = pcr;
}
public static void PatchPcr(ref byte[] tsPacket, TimeSpan newTimeSpan)
{
Pcr pcr = new Pcr(newTimeSpan);
tsPacket[6] = (byte)(((pcr.ReferenceBase >> 25) & 0xff));
tsPacket[7] = (byte)(((pcr.ReferenceBase >> 17) & 0xff));
tsPacket[8] = (byte)(((pcr.ReferenceBase >> 9) & 0xff));
tsPacket[9] = (byte)(((pcr.ReferenceBase >> 1) & 0xff));
tsPacket[10] = (byte)(((pcr.ReferenceBase & 0x1) << 7) + 0x7e + ((pcr.ReferenceExtension >> 8) & 0x1));
tsPacket[11] = (byte)(pcr.ReferenceExtension & 0xff);
}
public static void PatchDts(ref byte[] tsPacket, ulong offset, TimeSpan newTimeSpan)
{
Pcr pcr = new Pcr(newTimeSpan);
tsPacket[offset + 18] = (byte)((((pcr.ReferenceBase & 0x7f) << 1) + 1)); pcr.ReferenceBase >>= 7;
tsPacket[offset + 17] = (byte)((pcr.ReferenceBase & 0xff)); pcr.ReferenceBase >>= 8;
tsPacket[offset + 16] = (byte)((((pcr.ReferenceBase & 0x7f) << 1) + 1)); pcr.ReferenceBase >>= 7;
tsPacket[offset + 15] = (byte)((pcr.ReferenceBase & 0xff)); pcr.ReferenceBase >>= 8;
tsPacket[offset + 14] = (byte)((((pcr.ReferenceBase & 7) << 1) + 0x11));
}
public static void PatchPts(ref byte[] tsPacket, ulong offset, TimeSpan newTimeSpan)
{
Pcr pcr = new Pcr(newTimeSpan);
tsPacket[offset + 13] = (byte)((((pcr.ReferenceBase & 0x7f) << 1) + 1)); pcr.ReferenceBase >>= 7;
tsPacket[offset + 12] = (byte)((pcr.ReferenceBase & 0xff)); pcr.ReferenceBase >>= 8;
tsPacket[offset + 11] = (byte)((((pcr.ReferenceBase & 0x7f) << 1) + 1)); pcr.ReferenceBase >>= 7;
tsPacket[offset + 10] = (byte)((pcr.ReferenceBase & 0xff)); pcr.ReferenceBase >>= 8;
tsPacket[offset + 9] = (byte)((((pcr.ReferenceBase & 7) << 1) + 0x31));
}
