public void Read(byte[] bytes, int byteCnt)
{
using (var ms = new MemoryStream(bytes))
{
using (var br = new BinaryReader(ms))
{
while (ms.Position < byteCnt)
{
switch (_field)
{
case MediaMessageFields.Start:
if (MdvrMessageHelper.GetString(br.ReadBytes(8)) == MdvrMessageHelper.MediaMessageStart)
{
_msg = new MdvrMediaMessage();
_field = MediaMessageFields.MessageLength;
}
break;
case MediaMessageFields.MessageLength:
_msg.MessageLength = br.ReadInt32();
_field = MediaMessageFields.MessageType;
break;
case MediaMessageFields.MessageType:
_msg.MessageType = br.ReadInt16();
_field = MediaMessageFields.SerialNo;
break;
case MediaMessageFields.SerialNo:
_msg.SerialNo = br.ReadInt16();
_field = MediaMessageFields.Time;
break;
case MediaMessageFields.Time:
_msg.Tick = br.ReadInt32();
_field = MediaMessageFields.Data;
break;
case MediaMessageFields.Data:
if (_msg.ByteList.Count < _msg.DataLength)
{
_msg.ByteList.Add(br.ReadByte());
if (_msg.ByteList.Count == _msg.DataLength)
{
_field = MediaMessageFields.End;
}
}
break;
case MediaMessageFields.End:
if (MdvrMessageHelper.GetString(br.ReadBytes(4)) == MdvrMessageHelper.MediaMessageEnd)
{
MessageReceived?.Invoke(_msg);
}
_field = MediaMessageFields.Start;
break;
}
}
}
}
}
public void Read(byte[] bytes, int byteCnt)
{
//bytes = MdvrMessageHelper.Escape(bytes);
using (var ms = new MemoryStream(bytes))
{
using (var br = new BinaryReader(ms))
{
while (ms.Position < byteCnt)
{
switch (_field)
{
case MessageFields.Start:
{
if (MdvrMessageHelper.GetString(br.ReadBytes(4)) == MdvrMessageHelper.MessageStart)
{
_msg = new MdvrMessage();
_field = MessageFields.Length;
}
}
break;
case MessageFields.Length:
{
var fieldString = MdvrMessageHelper.GetString(br.ReadBytes(4));
_msg.MessageLength = int.Parse(fieldString);
if (_msg.MessageLength > 0)
{
_field = MessageFields.Data;
}
else
{
_field = MessageFields.End;
}
}
break;
case MessageFields.Data:
{
if (_msg.ByteList.Count < _msg.MessageLength)
{
_msg.ByteList.Add(br.ReadByte());
if (_msg.ByteList.Count == _msg.MessageLength)
{
_field = MessageFields.End;
}
}
}
break;
case MessageFields.End:
{
if (MdvrMessageHelper.GetString(br.ReadBytes(1)) == MdvrMessageHelper.MessageEnd)
{
var mdvrMessage = MdvrMessageHelper.Parse(_msg.ByteList);
MessageReceived?.Invoke(mdvrMessage);
//var message = MdvrMessageHelper.Parse(_msg.ByteList);
//if(message is MdvrMessageBase)
//{
// MdvrMessageReceivedArgs args = new MdvrMessageReceivedArgs()
// {
// DevIDNO = (message as MdvrMessageBase).DevIDNO,
// IpAddress = ip,
// Port = port,
// Message = message
// };
// MessageReceived?.Invoke(args);
//}
}
_field = MessageFields.Start;
}
break;
}
}
}
}
}