// Determine the current tally sate. If you specify a timeout then it will wait until it has changed, otherwise it will simply poll it
// and return the current tally immediately. The return value is whether anything has actually change (true) or whether it timed out (false)
public bool GetTally(ref NDIlib.tally_t tally, int timeout)
{
if (_sendInstancePtr == IntPtr.Zero)
{
return(false);
}
return(NDIlib.send_get_tally(_sendInstancePtr, ref tally, (uint)timeout));
}
void SetTallyIndicators(bool onProgram, bool onPreview)
{
// we need to have a receive instance
if (_recvInstancePtr != IntPtr.Zero)
{
// set up a state descriptor
NDIlib.tally_t tallyState = new NDIlib.tally_t()
{
on_program = onProgram,
on_preview = onPreview
};
// set it on the receiver instance
NDIlib.recv_set_tally(_recvInstancePtr, ref tallyState);
}
}
//
private void SendThreadProc()
{
// look for changes in tally
bool lastProg = false;
bool lastPrev = false;
NDIlib.tally_t tally = new NDIlib.tally_t();
tally.on_program = lastProg;
tally.on_preview = lastPrev;
while (!exitThread)
{
if (Monitor.TryEnter(sendInstanceLock))
{
// if this is not here, then we must be being reconfigured
if (sendInstancePtr == null)
{
// unlock
Monitor.Exit(sendInstanceLock);
// give up some time
Thread.Sleep(20);
// loop again
continue;
}
try
{
// get the next available frame
NDIlib.video_frame_v2_t frame;
if (pendingFrames.TryTake(out frame, 250))
{
// this dropps frames if the UI is rendernig ahead of the specified NDI frame rate
while (pendingFrames.Count > 1)
{
NDIlib.video_frame_v2_t discardFrame = pendingFrames.Take();
Marshal.FreeHGlobal(discardFrame.p_data);
}
// We now submit the frame. Note that this call will be clocked so that we end up submitting
// at exactly the requested rate.
// If WPF can't keep up with what you requested of NDI, then it will be sent at the rate WPF is rendering.
//if (!isPausedValue)
if (FInSend[0])
{
NDIlib.send_send_video_v2(sendInstancePtr, ref frame);
}
// free the memory from this frame
Marshal.FreeHGlobal(frame.p_data);
}
}
catch (OperationCanceledException)
{
pendingFrames.CompleteAdding();
}
catch
{
//
}
// unlock
Monitor.Exit(sendInstanceLock);
}
else
{
Thread.Sleep(20);
}
// check tally
NDIlib.send_get_tally(sendInstancePtr, ref tally, 0);
// if tally changed trigger an update
if (lastProg != tally.on_program || lastPrev != tally.on_preview)
{
// save the last values
lastProg = tally.on_program;
lastPrev = tally.on_preview;
}
}
}
public void PrepareFrame(string SenderToUse, long timeCode, int shift = 0, int markHeight = 250)
{
{
int exists = senderNameList.IndexOf(SenderToUse);
if (exists != -1)
{
Sender sendInstance = senderList[exists];
// because we are clocking to the video it is better to always submit the audio first
// put tone in it every 25 frames
double frameNumber = senderFrameSentList[exists];
bool dotone = frameNumber % 25 == 0;
// FillAudioBuffer(audioFrame, dotone);
// submit the audio buffer
doSend = CoreSettings.CoreSettings.Default.SendNDI;
// if (doSend) sendInstance.Send(audioFrame);
// get the tally state of this source (we poll it),
NDIlib.tally_t ndi_tally = sendInstance.Tally;
if ((CoreSettings.CoreSettings.Default.MarkFrames) || (CoreSettings.CoreSettings.Default.CheckDroppedFrames))
{
Bitmap bmp = new Bitmap(senderVideoFrameList[2 * exists + shift].Width, senderVideoFrameList[2 * exists + shift].Height, senderVideoFrameList[2 * exists + shift].Stride, System.Drawing.Imaging.PixelFormat.Format32bppPArgb, senderVideoFrameList[2 * exists + shift].BufferPtr);
Graphics graphics = Graphics.FromImage(bmp);
graphics.SmoothingMode = SmoothingMode.AntiAlias;
Pen outlinePen = new Pen(Color.Black, 2.0f);
Pen thinOutlinePen = new Pen(Color.Black, 1.0f);
Pen lineOutlinePen = new Pen(Color.White, 10.0f);
Pen transparentlineOutlinePen = new Pen(Color.Transparent, 100.0f);
switch (exists)
{
case 0:
lineOutlinePen = new Pen(Color.Red, 10.0f);
break;
case 1:
lineOutlinePen = new Pen(Color.Blue, 10.0f);
break;
case 2:
lineOutlinePen = new Pen(Color.Green, 10.0f);
break;
case 3:
lineOutlinePen = new Pen(Color.Yellow, 10.0f);
break;
}
;
if (CoreSettings.CoreSettings.Default.MarkFrames)
{
DrawPrettyText(graphics, String.Format("Frame {0}", frameNumber.ToString()), 96.0f, fontFamily, new Point(videoFrame.Width / 2, exists * 80 + 50), textFormat, Brushes.White, outlinePen);
}
if (CoreSettings.CoreSettings.Default.MarkFrames)
{
DrawPrettyText(graphics, System.DateTime.Now.ToString(), 96.0f, fontFamily, new Point(videoFrame.Width / 2, 1000), textFormat, Brushes.White, outlinePen);
}
if (CoreSettings.CoreSettings.Default.CheckDroppedFrames)
{
int lineHeight = videoFrame.Height / senderFrameSentList.Count;
int a = (int)(senderFrameSentList[exists] * 20) % videoFrame.Width;
Point pt1 = new Point(a, (videoFrame.Height - (lineHeight * (exists) + markHeight)));
Point pt2 = new Point(a, videoFrame.Height - lineHeight * (exists));
Point pt3 = new Point(a, 0);
Point pt4 = new Point(a, videoFrame.Height);
graphics.CompositingMode = CompositingMode.SourceCopy;
graphics.DrawLine(transparentlineOutlinePen, pt3, pt4);
graphics.DrawLine(lineOutlinePen, pt1, pt2);
graphics.CompositingMode = CompositingMode.SourceOver;
}
graphics.Dispose();
bmp.Dispose();
}
// we now submit the frame. note that this call will be clocked so that we end up submitting
// at exactly 25fps.
// if (doSend) sendInstance.SendAsync(senderVideoFrameList[2 * exists + shift]);
senderVideoFrameList[2 * exists + shift].TimeCode = timeCode;
senderFrameSentList[exists]++;
}
} // using bmp and graphics
} // using audioFrame and videoFrame
// the receive thread runs though this loop until told to exit
private void SendThreadProc()
{
// look for changes in tally
bool lastProg = false;
bool lastPrev = false;
NDIlib.tally_t tally = new NDIlib.tally_t
{
on_program = lastProg,
on_preview = lastPrev
};
while (!exitThread)
{
if (Monitor.TryEnter(sendInstanceLock))
{
// if this is not here, then we must be being reconfigured
if (sendInstancePtr == null)
{
// unlock
Monitor.Exit(sendInstanceLock);
// give up some time
Thread.Sleep(20);
// loop again
continue;
}
// Audio should be send first
if (audioEnabled)
{
try
{
// get the next available frame
if (pendingAudioFrames.TryTake(out NDIlib.audio_frame_v2_t frame, 250))
{
// Submit the audio buffer
if (!IsSendPaused)
{
NDIlib.send_send_audio_v2(sendInstancePtr, ref frame);
}
// free the memory from this frame
Marshal.FreeHGlobal(frame.p_data);
}
}
catch (OperationCanceledException)
{
pendingAudioFrames.CompleteAdding();
}
catch {}
}
try
{
// get the next available frame
if (pendingVideoFrames.TryTake(out NDIlib.video_frame_v2_t frame, 250))
{
// this drops frames if the UI is rendering ahead of the specified NDI frame rate
while (pendingVideoFrames.Count > 1)
{
NDIlib.video_frame_v2_t discardFrame = pendingVideoFrames.Take();
Marshal.FreeHGlobal(discardFrame.p_data);
}
// We now submit the frame. Note that this call will be clocked so that we end up submitting
// at exactly the requested rate.
// If WPF can't keep up with what you requested of NDI, then it will be sent at the rate WPF is rendering.
if (!IsSendPaused)
{
NDIlib.send_send_video_v2(sendInstancePtr, ref frame);
}
// free the memory from this frame
Marshal.FreeHGlobal(frame.p_data);
}
}
catch (OperationCanceledException)
{
pendingVideoFrames.CompleteAdding();
}
catch {}
// unlock
Monitor.Exit(sendInstanceLock);
}
else
{
Thread.Sleep(20);
}
// check tally
NDIlib.send_get_tally(sendInstancePtr, ref tally, 0);
// if tally changed trigger an update
if (lastProg != tally.on_program || lastPrev != tally.on_preview)
{
// save the last values
lastProg = tally.on_program;
lastPrev = tally.on_preview;
// set these on the UI thread
Application.Current.Dispatcher.BeginInvoke(new Action(() =>
{
IsOnProgram = lastProg;
IsOnPreview = lastPrev;
}));
}
}
}
public void Evaluate(int SpreadMax)
{
if (FInUpdate[0])
{
string msg = "";
frameNumber++;
// fill it with a lovely color
graphics.Clear(Color.Maroon);
// show which source we are
msg = DrawPrettyText(graphics, "C# Example Source", 96.0f, fontFamily, new Point(960, 100), textFormat, Brushes.White, outlinePen);
if (msg != "")
{
FLogger.Log(LogType.Error, "DrawPrettyText error: " + msg);
}
try
{
// Get the tally state of this source (we poll it),
NDIlib.tally_t NDI_tally = new NDIlib.tally_t();
NDIlib.send_get_tally(sendInstancePtr, ref NDI_tally, 0);
// Do something different depending on where we are shown
if (NDI_tally.on_program)
{
msg = DrawPrettyText(graphics, "On Program", 96.0f, fontFamily, new Point(960, 225), textFormat, Brushes.White, outlinePen);
if (msg != "")
{
FLogger.Log(LogType.Error, "DrawPrettyText error: " + msg);
}
}
else if (NDI_tally.on_preview)
{
msg = DrawPrettyText(graphics, "On Preview", 96.0f, fontFamily, new Point(960, 225), textFormat, Brushes.White, outlinePen);
if (msg != "")
{
FLogger.Log(LogType.Error, "DrawPrettyText error: " + msg);
}
}
}
catch (Exception e)
{
FLogger.Log(LogType.Error, "Update: " + e.Message);
}
//// show what frame we've rendered
msg = DrawPrettyText(graphics, String.Format("Frame {0}", frameNumber.ToString()), 96.0f, fontFamily, new Point(960, 350), textFormat, Brushes.White, outlinePen);
if (msg != "")
{
FLogger.Log(LogType.Error, "DrawPrettyText error: " + msg);
}
// show current time
msg = DrawPrettyText(graphics, System.DateTime.Now.ToString(), 96.0f, fontFamily, new Point(960, 900), textFormat, Brushes.White, outlinePen);
if (msg != "")
{
FLogger.Log(LogType.Error, "DrawPrettyText error: " + msg);
}
}
if (FInSend[0])
{
// are we connected to anyone?
//if (NDI.Send.NDIlib_send_get_no_connections(sendInstancePtr, 10000) < 1)
if (NDIlib.send_get_no_connections(sendInstancePtr, FInTimeout[0]) < 1)
{
// no point rendering
FLogger.Log(LogType.Debug, "No current connections, so no rendering needed.");
//Console.WriteLine("No current connections, so no rendering needed.");
// Wait a bit, otherwise our limited example will end before you can connect to it
System.Threading.Thread.Sleep(50);
}
else
{
try
{
// We now submit the frame. Note that this call will be clocked so that we end up submitting
// at exactly 29.97fps.
NDIlib.send_send_video_v2(sendInstancePtr, ref videoFrame);
// Just display something helpful in the console
FLogger.Log(LogType.Debug, "Frame number " + frameNumber + " sent.");
}
catch (Exception e)
{
FLogger.Log(LogType.Error, "Send: " + e.Message);
}
}
}
}
