public void ProcessPacket(TsPacket packet)
{
if (packet.PacketIdentifier == (ushort)PacketIdentifier.NullPacket)
{
return; // null packet for padding strict muxrate streams
}
#if DEBUG2
var dbg = new StringBuilder();
dbg.Append("Received packet for PID " + (PacketIdentifier)packet.PacketIdentifier + ". ");
dbg.Append("Continuity is " + packet.ContinuityCounter + ". ");
if (packet.AdaptationField != null)
{
dbg.Append("Has Adaptation Field. ");
}
if (packet.Payload != null)
{
dbg.Append("Has " + packet.Payload.Length + " byte Payload. ");
}
if (packet.PayloadUnitStartIndicator)
{
dbg.Append("First in series. ");
}
Debug.WriteLine(dbg.ToString());
#endif
if (_streams.TryGetValue(packet.PacketIdentifier, out TsStream stream))
{
stream.ProcessInput(packet);
}
}
public AacsPacket(byte[] buffer, int offset)
{
CopyControl = (AACSCopyControl)((buffer[offset] & 0xC0) >> 6);
Timestamp = (uint)(((buffer[offset++] << 24) & 0x3F) | (buffer[offset++] << 16) | (buffer[offset++] << 8) | buffer[offset++]);
if (CopyControl == AACSCopyControl.Unencrypted)
{
TsPacket = new TsPacket(buffer, offset);
}
else
{
throw new FormatException("Encrypted content not currently supported.");
}
}
public AacsPacket(byte[] buffer, int offset)
{
CopyControl = (AACSCopyControl)((buffer[offset] & 0xC0) >> 6);
Timestamp = (uint)(((buffer[offset++] << 24) & 0x3F) | (buffer[offset++] << 16) | (buffer[offset++] << 8) | buffer[offset++]);
if (CopyControl == AACSCopyControl.Unencrypted)
{
TsPacket = new TsPacket(buffer, offset);
}
else
{
throw new FormatException("Encrypted content not currently supported.");
}
}
public void ProcessInput(byte[] buffer, int offset, int length)
{
int position = offset;
int remainder = 0;
if (_partialPacketLength != 0)
{
Debug.WriteLine("Using previous " + _partialPacketLength + " byte partial packet.");
remainder = TsPacket.Length - _partialPacketLength;
int len = Math.Min(remainder, length);
Debug.WriteLine("Copying " + len + " additional bytes to partial packet.");
Buffer.BlockCopy(buffer, 0, _partialPacket, _partialPacketLength, len);
_partialPacketLength += len;
position += len;
Debug.WriteLine("Partial packet is now " + _partialPacketLength + " bytes.");
if (_partialPacketLength >= TsPacket.Length)
{
_partialPacketLength = 0;
try
{
var packet = new TsPacket(_partialPacket);
ProcessPacket(packet);
Debug.WriteLine("Reassembled partial packet.");
}
catch (Exception ex)
{
Debug.WriteLine(ex.ToString());
}
}
}
while ((offset + length - position) >= TsPacket.Length)
{
if (buffer[position] == 0x47)
{
try
{
var packet = new TsPacket(buffer, position);
position += TsPacket.Length;
Debug.WriteLine("Processing packet.");
ProcessPacket(packet);
}
catch
{
Debug.WriteLine("Error deserializing packet. Assuming false start code and scanning ahead for the next packet.");
position++;
}
}
else
{
Debug.WriteLine("Skipping byte 0x" + buffer[position].ToString("X2") + " at offset " + position + ".");
position++;
}
}
remainder = offset + length - position;
if (remainder > 0)
{
Debug.WriteLine("Remainder is " + remainder + " bytes.");
int packetStartOffset = -1;
for (int i = 0; i < remainder; i++)
{
if (buffer[position + i] == 0x47)
{
packetStartOffset = i;
break;
}
Debug.WriteLine("Skipping byte 0x" + buffer[position].ToString("X2") + " at offset " + (position + i) + ".");
}
if (packetStartOffset >= 0)
{
Debug.WriteLine("Found sync byte in remainder. Storing partial packet.");
_partialPacketLength = remainder - packetStartOffset;
Buffer.BlockCopy(buffer, position + packetStartOffset, _partialPacket, 0, _partialPacketLength);
}
else _partialPacketLength = 0;
}
}
public void ProcessPacket(TsPacket packet)
{
if (packet.PacketIdentifier == (ushort) PacketIdentifier.NullPacket)
return; // null packet for padding strict muxrate streams
#if DEBUG2
var dbg = new StringBuilder();
dbg.Append("Received packet for PID " + (PacketIdentifier) packet.PacketIdentifier + ". ");
dbg.Append("Continuity is " + packet.ContinuityCounter + ". ");
if (packet.AdaptationField != null) dbg.Append("Has Adaptation Field. ");
if (packet.Payload != null) dbg.Append("Has " + packet.Payload.Length + " byte Payload. ");
if (packet.PayloadUnitStartIndicator) dbg.Append("First in series. ");
Debug.WriteLine(dbg.ToString());
#endif
TsStream stream;
if (_streams.TryGetValue(packet.PacketIdentifier, out stream)) stream.ProcessInput(packet);
}
public abstract void ProcessInput(TsPacket packet);
public abstract void ProcessInput(TsPacket packet);
public void ProcessInput(byte[] buffer, int offset, int length)
{
int position = offset;
int remainder = 0;
if (_partialPacketLength != 0)
{
Debug.WriteLine("Using previous " + _partialPacketLength + " byte partial packet.");
remainder = TsPacket.Length - _partialPacketLength;
int len = Math.Min(remainder, length);
Debug.WriteLine("Copying " + len + " additional bytes to partial packet.");
Buffer.BlockCopy(buffer, 0, _partialPacket, _partialPacketLength, len);
_partialPacketLength += len;
position += len;
Debug.WriteLine("Partial packet is now " + _partialPacketLength + " bytes.");
if (_partialPacketLength >= TsPacket.Length)
{
_partialPacketLength = 0;
try
{
var packet = new TsPacket(_partialPacket);
ProcessPacket(packet);
Debug.WriteLine("Reassembled partial packet.");
}
catch (Exception ex)
{
Debug.WriteLine(ex.ToString());
}
}
}
while ((offset + length - position) >= TsPacket.Length)
{
if (buffer[position] == 0x47)
{
try
{
var packet = new TsPacket(buffer, position);
position += TsPacket.Length;
Debug.WriteLine("Processing packet.");
ProcessPacket(packet);
}
catch
{
Debug.WriteLine("Error deserializing packet. Assuming false start code and scanning ahead for the next packet.");
position++;
}
}
else
{
Debug.WriteLine("Skipping byte 0x" + buffer[position].ToString("X2") + " at offset " + position + ".");
position++;
}
}
remainder = offset + length - position;
if (remainder > 0)
{
Debug.WriteLine("Remainder is " + remainder + " bytes.");
int packetStartOffset = -1;
for (int i = 0; i < remainder; i++)
{
if (buffer[position + i] == 0x47)
{
packetStartOffset = i;
break;
}
Debug.WriteLine("Skipping byte 0x" + buffer[position].ToString("X2") + " at offset " + (position + i) + ".");
}
if (packetStartOffset >= 0)
{
Debug.WriteLine("Found sync byte in remainder. Storing partial packet.");
_partialPacketLength = remainder - packetStartOffset;
Buffer.BlockCopy(buffer, position + packetStartOffset, _partialPacket, 0, _partialPacketLength);
}
else
{
_partialPacketLength = 0;
}
}
}
