/// <summary>
/// Encode RTMP header into given ByteBuffer
/// </summary>
/// <param name="header">RTMP message header</param>
/// <param name="lastHeader">Previous header</param>
/// <param name="buffer">Buffer to write encoded header to</param>
/// <returns>Encoded header data</returns>
public static ByteBuffer EncodeHeader(RtmpHeader header, RtmpHeader lastHeader, ByteBuffer buffer) {
HeaderType headerType = GetHeaderType(header, lastHeader);
EncodeHeaderByte(buffer, (byte)headerType, header.ChannelId);
switch (headerType) {
case HeaderType.HeaderNew:
if (header.Timer < 0xffffff)
buffer.WriteMediumInt(header.Timer);
else
buffer.WriteMediumInt(0xffffff);
buffer.WriteMediumInt(header.Size);
buffer.Put((byte)header.DataType);
buffer.WriteReverseInt(header.StreamId);
break;
case HeaderType.HeaderSameSource:
if (header.Timer < 0xffffff)
buffer.WriteMediumInt(header.Timer);
else
buffer.WriteMediumInt(0xffffff);
buffer.WriteMediumInt(header.Size);
buffer.Put((byte)header.DataType);
break;
case HeaderType.HeaderTimerChange:
if (header.Timer < 0xffffff)
buffer.WriteMediumInt(header.Timer);
else
buffer.WriteMediumInt(0xffffff);
break;
case HeaderType.HeaderContinue:
break;
}
if (header.Timer >= 0xffffff)
buffer.PutInt(header.Timer);
return buffer;
}