public override void Encode(Stream outputStream, bool withHeader = true)
{
if (outputStream == null || !outputStream.CanWrite)
{
return;
}
if (withHeader)
{
NetworkMessageHeader.Encode(outputStream);
}
PayloadHeader.Encode(outputStream);
BaseType.WriteToStream(outputStream, BitConverter.GetBytes(MessageSequenceNumber));
BaseType.WriteToStream(outputStream, BitConverter.GetBytes(ChunkOffset));
BaseType.WriteToStream(outputStream, BitConverter.GetBytes(TotalSize));
int length = -1;
if (ChunkData != null)
{
length = ChunkData.Length;
}
BaseType.WriteToStream(outputStream, BitConverter.GetBytes(length));
for (int i = 0; i < length; i++)
{
// ReSharper disable once PossibleNullReferenceException
outputStream.WriteByte(ChunkData[i]);
}
}
public override void Encode(Stream outputStream, bool withHeader = true)
{
if (outputStream == null || !outputStream.CanWrite)
{
return;
}
if (withHeader)
{
// 1. Network Message Header
NetworkMessageHeader.Encode(outputStream);
}
// 2. DataSet Payload Header
PayloadHeader.Encode(outputStream);
EncodeChunk(outputStream);
}
private static async Task <(List <PayloadHeader> chunkHeaders, List <PayloadHeader> keyframeHeaders)> UnpackDataHeaders(FileStream fs, Header header)
{
fs.Seek(header.headerLength + 4, SeekOrigin.Begin);
var chunkHeaders = new List <PayloadHeader>();
var keyframeHeaders = new List <PayloadHeader>();
var buffer = new byte[10];
for (var k = 0; k < header.chunkCount; k++)
{
await fs.ReadAsync(buffer);
chunkHeaders.Add(PayloadHeader.FromBytes(buffer));
}
for (var k = 0; k < header.keyframeCount; k++)
{
await fs.ReadAsync(buffer);
keyframeHeaders.Add(PayloadHeader.FromBytes(buffer));
}
return(chunkHeaders, keyframeHeaders);
}
private void OnGetResponse(IAsyncResult asyncResult)
{
// get the response
HttpWebRequest req = (HttpWebRequest)asyncResult.AsyncState;
try
{
HttpWebResponse resp = (HttpWebResponse)req.EndGetResponse(asyncResult);
Stream s = resp.GetResponseStream();
while (true)
{
CommonHeader heder = new CommonHeader();
//ByteArrayToStructure(s, ref heder);
var buff = ReadBytes(s, 8);
heder.StartByte = buff[0];
heder.Type = buff[1];
heder.SequenceNo = BitConverter.ToInt16(buff, 2);;
heder.TimeStamp = BitConverter.ToInt32(buff, 4);;
PayloadHeader playload = new PayloadHeader();
//ByteArrayToStructure(s, ref playload);
buff = ReadBytes(s, 128);
playload.StartCode = BitConverter.ToInt32(buff, 0);
playload.JpgDataSize = BitConverter.ToUInt16(new byte[] { buff[6], buff[5], buff[4], 0 }, 0);
playload.PadingSize = buff[7];
if (((CommonHeader)heder).Type == 0x02)
{
if (playload.JpgDataSize > 0)
{
var data = ReadBytes(s, playload.JpgDataSize);
_liveViewData.FocusX = BitConverter.ToInt16(new byte[] { data[1], data[0] }, 0);
_liveViewData.FocusY = BitConverter.ToInt16(new byte[] { data[3], data[2] }, 0);;
_liveViewData.FocusFrameXSize = BitConverter.ToInt16(new byte[] { data[5], data[4] }, 0) - _liveViewData.FocusX;
_liveViewData.FocusFrameYSize = BitConverter.ToInt16(new byte[] { data[7], data[6] }, 0) - _liveViewData.FocusY;
_liveViewData.HaveFocusData = true;
_liveViewData.Focused = data[9] != 0;
_liveViewData.ImageWidth = 10000;
_liveViewData.ImageHeight = 10000;
_liveViewData.IsLiveViewRunning = true;
Console.WriteLine(playload.JpgDataSize);
}
}
else
{
_liveViewData.ImageData = ReadBytes(s, playload.JpgDataSize);
}
if (playload.PadingSize > 0)
{
ReadBytes(s, playload.PadingSize);
}
if (_shoulStopLiveView)
{
break;
}
}
resp.Close();
}
catch (Exception ex)
{
Log.Error("Unable to download stream ", ex);
}
}
