public RtpPacket(byte[] buffer, int offset, int count, bool shouldDispose = true) : base(shouldDispose)
{
if (buffer == null || buffer.Length == 0 || count <= 0)
{
throw new ArgumentException("Must have data in a RtpPacket");
}
m_OwnedOctets = new byte[count];
Array.Copy(buffer, offset, m_OwnedOctets, 0, count);
//Read the header
Header = new RtpHeader(new MemorySegment(m_OwnedOctets, 0));
m_OwnsHeader = true;
if (count > RtpHeader.Length && false == Header.IsCompressed)
{
//Create a segment to the payload deleniated by the given offset and the constant Length of the RtpHeader.
Payload = new MemorySegment(m_OwnedOctets, RtpHeader.Length, count - RtpHeader.Length);
}
else
{
//m_OwnedOctets = MemorySegment.EmptyBytes; //IsReadOnly should be false
//Payload = new MemoryReference(m_OwnedOctets, 0, 0, m_OwnsHeader);
Payload = MemorySegment.Empty;
}
}
public RtpHeader(RtpHeader other, bool shouldDispose = true)
: base(shouldDispose)
{
First16Bits = new RFC3550.CommonHeaderBits(other.First16Bits, shouldDispose);
SegmentToLast10Bytes = new MemorySegment(other.SegmentToLast10Bytes, shouldDispose);
}
public RtpPacket(int size, bool shouldDispose = true)
: base(shouldDispose)
{
size = Binary.Max(0, size);
m_OwnedOctets = new byte[size];
Header = new RtpHeader(new MemorySegment(m_OwnedOctets, 0, Binary.Min(size, RtpHeader.Length)));
m_OwnsHeader = true;
Payload = new MemorySegment(m_OwnedOctets, RtpHeader.Length, size - Header.Size);
}
public RtpPacket(RtpHeader header, MemorySegment payload, bool shouldDispose = true) : base(shouldDispose)
{
if (header == null)
{
throw new ArgumentNullException("header");
}
Header = header;
m_OwnsHeader = shouldDispose;
Payload = payload;
}
public RtpHeader(RtpHeader other, bool reference, bool shouldDispose = true)
: base(shouldDispose)
{
if (reference)
{
First16Bits = other.First16Bits;
Last10Bytes = other.Last10Bytes;
SegmentToLast10Bytes = other.SegmentToLast10Bytes;
}
else
{
First16Bits = new RFC3550.CommonHeaderBits(other.First16Bits, false, shouldDispose);
Last10Bytes = new byte[10];
SegmentToLast10Bytes = new MemorySegment(Last10Bytes, 0, 10, shouldDispose);
other.Last10Bytes.CopyTo(Last10Bytes, 0);
}
}
public RtpPacket(RtpHeader header, IEnumerable <byte> octets, bool shouldDispose = true) : base(shouldDispose)
{
if (header == null)
{
throw new ArgumentNullException("header");
}
//Assign the header (maybe referenced elsewhere, when dispose is called the given header will be disposed.)
Header = header;
m_OwnsHeader = shouldDispose;
//Project the octets in the sequence of use the empty array
m_OwnedOctets = (octets ?? MemorySegment.Empty).ToArray();
//The Payload property must be assigned otherwise the properties will not function in the instance.
Payload = new MemorySegment(m_OwnedOctets, 0, m_OwnedOctets.Length);
}
public bool Equals(RtpHeader other)
{
return(other.First16Bits.Equals(First16Bits)
&&
other.SynchronizationSourceIdentifier.Equals(SynchronizationSourceIdentifier));
}
/// <summary>
/// Generates a sequence of bytes containing the RtpHeader and any data contained in Payload.
/// (Including the SourceList and RtpExtension if present)
/// </summary>
/// <param name="other">The optional other RtpHeader to utilize in the preperation</param>
/// <returns>The sequence created.</returns>
public IEnumerable <byte> Prepare(RtpHeader other = null)
{
return(Enumerable.Concat <byte>(other ?? Header, Payload ?? MemorySegment.Empty));
}
