public void AddFrame(IVideoProvider source)
{
while (!threadQ.TryAdd(new VideoCopy(source), 1000))
{
if (!workerT.IsAlive)
{
throw new Exception("AVI Worker thread died!");
}
}
}
/// <summary>
/// 解压缩字节数据
/// </summary>
/// <param name="data">原字节数据</param>
/// <returns>解压缩后字节数据</returns>
public static byte[] Decompress(this byte[] data)
{
byte[] buffer;
_bytesQueue.TryTake(out buffer, 100);
buffer = buffer ?? new byte[3 * 1024];
try
{
var ms = new MemoryStream(data);
var zip = new GZipStream(ms, CompressionMode.Decompress, true);
using (var msreader = new MemoryStream())
{
while (true)
{
var reader = zip.Read(buffer, 0, buffer.Length);
if (reader <= 0)
{
break;
}
msreader.Write(buffer, 0, reader);
}
zip.Close();
ms.Close();
msreader.Position = 0;
return(msreader.ToArray());
}
}
catch (Exception e)
{
throw new Exception(e.Message);
}
finally
{
_bytesQueue.TryAdd(buffer, 100);
}
}
public void setVal(DateTime ts)
{
Console.WriteLine("try to add " + ts.ToLongTimeString());
while (!col.TryAdd(ts))
{
deleteOlder();
}
ShowContent(" ++ ");
}
private async void StartListen(CancellationToken token)
{
var buffer = new byte[ReceiveChunkSize];
var stringResult = new StringBuilder();
try
{
while (WebSocket?.State == System.Net.WebSockets.WebSocketState.Open)
{
WebSocketReceiveResult result;
do
{
stringResult.Clear();
result = await WebSocket?.ReceiveAsync(new ArraySegment <byte>(buffer), token);
if (result != null)
{
if (result.MessageType == WebSocketMessageType.Close)
{
await WebSocket?.CloseAsync(WebSocketCloseStatus.NormalClosure, string.Empty, CancellationToken.None);
Closed(this);
OnClose?.Invoke(this, null);
}
else if (result.Count > 0 && buffer != null)
{
stringResult?.Append(Encoding.UTF8.GetString(buffer, 0, result.Count));
}
}
} while (result != null && !result.EndOfMessage);
if (stringResult.Length > 0)
{
messageCollection.TryAdd(stringResult.ToString());
}
}
}
catch (Exception)
{
Closed(this);
OnClose?.Invoke(this, null);
}
finally
{
WebSocket.Dispose();
}
}