static void OnNewFrame(object sender, NewFrameEventArgs e)
{
Logger.Debug("Writing frame on timestamp " + e.Timestamp.ToLocalTime().ToString(@"yyyy-MM-dd HH:mm:ss.ffffff"));
server.Write(e.Frame);
}
/// <summary>
/// 从嵌套的视频源处接收到新的帧
/// </summary>
/// <param name="sender">发送者</param>
/// <param name="e">新的帧</param>
private void OnNestedVideoSourceNewFrame(object sender, NewFrameEventArgs e)
{
// don't even try doing something if there are no clients
if (NewFrame == null)
return;
// 是否判断跳帧
if (SkipFramesIfBusy)
{
// 如果还在处理上一帧，则跳帧
if (!isProcessingThreadAvailable.WaitOne(0, false))
{
// return in the case if image processing thread is still busy and
// we are allowed to skip frames
return;
}
}
else
{
// make sure image processing thread is available in the case we cannot skip frames
isProcessingThreadAvailable.WaitOne();
}
// pass the image to processing frame and exit
lastVideoFrame = (Bitmap)e.Frame.Clone();
isNewFrameAvailable.Set();
}
private void OnVideoSourceNewFrame(object sender, NewFrameEventArgs e)
{
if (e == null || e.Frame == null) return;
DateTime now = DateTime.Now;
if (now > e.Timestamp && (now - e.Timestamp).TotalSeconds >= 3)
{
// 如果时差超过一定时间则丢帧
return;
}
try
{
Bitmap frame = e.Frame;
// 原始图像翻转
ProcessImageRotation(ref frame);
// 原始图像时间戳
ProcessImageTimestamp(e.Timestamp, ref frame);
// 原始图像OSD
ProcessImageOnScreenDisplay(ref frame);
// 原始图像Logo
ProcessImageLogo(ref frame);
// 原始图像遮挡
ProcessImageProtectionMask(ref frame);
// 原始图像移动侦测
ProcessImageMotionDetection(ref frame);
// 设置非托管内存
SetUnmanagedLastFrame(frame);
// 触发新帧事件
RaiseNewFrameEvent();
}
catch (Exception ex)
{
Logger.Error(ex.Message);
}
}
private void OnNewFrame(object sender, NewFrameEventArgs e)
{
try
{
Bitmap bitmap = new Bitmap(e.Frame.Width, e.Frame.Height, PixelFormat.Format16bppRgb555);
Graphics draw = Graphics.FromImage(bitmap);
draw.DrawImage(e.Frame, 0, 0);
// when new frame arrived, update the latest frame
LatestFrame = bitmap;
}
catch { }
if (!_isSending)
{
lock (_sendLock)
{
try
{
_isSending = true;
lock (_destLock)
{
if (Sender != null)
{
foreach (var dest in Destinations)
{
_sequenceNumber = _sequenceNumber + 10; // give space to packet sender to split the packet
Sender.Send(new StreamPacket(LatestFrame, _sequenceNumber, e.Timestamp, dest));
}
}
}
}
finally
{
_isSending = false;
}
}
}
}
