public void Close()
{
/* resetting common properties */
pausebutton.Visible = false;
stopbutton.Visible = false;
recbutton.Visible = true;
captureStarted = false;
capturing = false;
OnTick(0);
if (capturer == null)
{
return;
}
/* stopping and closing capturer */
try {
capturer.Stop();
capturer.Close();
if (capturerType == CapturerType.Live)
{
/* release and dispose live capturer */
capturer.Error -= OnError;
capturer.DeviceChange += OnDeviceChange;
capturerhbox.Remove(capturer as Gtk.Widget);
capturer.Dispose();
}
} catch (Exception) {}
capturer = null;
}
public ctrlTextOverlay(TextOverlay textOverlay, int index, ICapturer capturer)
{
InitializeComponent();
_textOverlay = textOverlay;
_index = index;
_capturer = capturer;
nmLeft.Value = _textOverlay.Left;
nmTop.Value = _textOverlay.Top;
txtText.Text = _textOverlay.Text;
txtFont.Text = _textOverlay.Font.Name;
txtFont.Font = _textOverlay.Font;
pnlColor.BackColor = _textOverlay.Color;
chkVisible.Checked = _textOverlay.Visible;
btnUpdate.Visible = true;
chkBackColor.Checked = _textOverlay.BackColor != Color.Transparent;
btnBackColor.Enabled = _textOverlay.BackColor != Color.Transparent;
pnlBackColor.BackColor = _textOverlay.BackColor;
txtFont.Enabled = false;
btnFont.Enabled = false;
pnlColor.Enabled = false;
btnColor.Enabled = false;
chkBackColor.Enabled = false;
btnBackColor.Enabled = false;
pnlBackColor.Enabled = false;
_isLoaded = true;
}
private void timer1_Tick(object sender, EventArgs e)
{
if (!_isPaused)
{
lblStatus.Text = _capturer.IsRunning ? "Running" : "Stopped";
}
else
{
lblStatus.Text = "Paused";
}
if (_captureStarted && !_capturer.IsRunning && !_isPaused)
{
lblStatus.Text = "Restarting capturer...";
System.Runtime.InteropServices.Marshal.ReleaseComObject(_capturer);
_capturer = null;
InitCapturer();
lstOverlays.Items.Clear();
btnRecord.Text = "Record";
tabControl1.Enabled = true;
lblStatus.Text = "Stopped";
timer1.Stop();
}
}
public Tuple <double, double> GetAbsolutePointFromRelativePercent(double percentX, double percentY,
ICapturer capturer)
{
var absoluteX = capturer.CurrentScreenBounds.Width * percentX + capturer.CurrentScreenBounds.Left;
var absoluteY = capturer.CurrentScreenBounds.Height * percentY + capturer.CurrentScreenBounds.Top;
return(new Tuple <double, double>(absoluteX, absoluteY));
}
private void Form1_FormClosing(object sender, FormClosingEventArgs e)
{
if (_capturer.IsRunning)
{
_capturer.Stop();
}
System.Runtime.InteropServices.Marshal.ReleaseComObject(_capturer);
_capturer = null;
}
public CaptureController(ICapturer <XDocument> xmlDocumentProcessor)
{
if (xmlDocumentProcessor == null)
{
throw new ArgumentNullException("xmlDocumentProcessor");
}
_xmlDocumentProcessor = xmlDocumentProcessor;
}
public EventsManager(IGUIToolkit guiToolkit)
{
this.guiToolkit = guiToolkit;
mainWindow = guiToolkit.MainWindow;
player = mainWindow.Player;
capturer = mainWindow.Capturer;
drawingManager = new VideoDrawingsManager(player);
ConnectSignals();
}
public EventsManager(IGUIToolkit guiToolkit, IRenderingJobsManager renderer)
{
this.guiToolkit = guiToolkit;
this.renderer = renderer;
mainWindow = guiToolkit.MainWindow;
player = mainWindow.Player;
capturer = mainWindow.Capturer;
drawingManager = new VideoDrawingsManager(player);
ConnectSignals();
}
public Tuple <double, double> GetAbsolutePercentFromRelativePercent(double percentX, double percentY,
ICapturer capturer)
{
var absoluteX = capturer.CurrentScreenBounds.Width * percentX + capturer.CurrentScreenBounds.Left -
capturer.GetVirtualScreenBounds().Left;
var absoluteY = capturer.CurrentScreenBounds.Height * percentY + capturer.CurrentScreenBounds.Top -
capturer.GetVirtualScreenBounds().Top;
return(new Tuple <double, double>(absoluteX / capturer.GetVirtualScreenBounds().Width,
absoluteY / capturer.GetVirtualScreenBounds().Height));
}
public ctrlImageOverlay(ImageOverlay imageOverlay, int index, ICapturer capturer)
{
InitializeComponent();
_imageOverlay = imageOverlay;
_index = index;
_capturer = capturer;
nmLeft.Value = _imageOverlay.Left;
nmTop.Value = _imageOverlay.Top;
txtFileName.Text = _imageOverlay.FileName;
chkVisible.Checked = _imageOverlay.Visible;
txtFileName.Enabled = false;
btnBrowseFile.Enabled = false;
_isLoaded = true;
}
public void AddCapturer(ICapturer capturer)
{
object[] attributes = capturer.GetType().GetCustomAttributes(false);
foreach (Object attribute in attributes)
{
if (attribute is Captures)
{
Captures cap = (Captures)attribute;
CapturerInfo capturableInfo = new CapturerInfo();
capturableInfo.Capturer = capturer;
capturableInfo.Capturable = cap.Name;
capturableInfo.AddTo(_capturers);
break;
}
}
//TODO: Throw exception: [Captures] attribute is missing
}
private void button1_Click(object sender, EventArgs e)
{
try
{
//根据选择创建对应的采集器
if (this.comboBox1.SelectedIndex == 0)
{
this.capturer = CapturerFactory.CreateCameraCapturer(0, new Size(int.Parse(this.textBox_width.Text), int.Parse(this.textBox_height.Text)), 20);
((ICameraCapturer)this.capturer).ImageCaptured += new ESBasic.CbGeneric <Bitmap>(Form1_ImageCaptured);
}
else if (this.comboBox1.SelectedIndex == 1)
{
this.capturer = CapturerFactory.CreateDesktopCapturer(60, false);
((IDesktopCapturer)this.capturer).ImageCaptured += new ESBasic.CbGeneric <Bitmap>(Form1_ImageCaptured);
}
else if (this.comboBox1.SelectedIndex == 2)
{
this.capturer = CapturerFactory.CreateMicrophoneCapturer(0);
((IMicrophoneCapturer)this.capturer).AudioCaptured += new ESBasic.CbGeneric <byte[]>(Form1_AudioCaptured);
}
else
{
this.capturer = CapturerFactory.CreateSoundcardCapturer();
((ISoundcardCapturer)this.capturer).AudioCaptured += new ESBasic.CbGeneric <byte[]>(Form1_AudioCaptured);
}
this.button1.Enabled = false;
this.button2.Enabled = true;
this.comboBox1.Enabled = false;
this.autioDataTotalLen = 0;
this.label_audioDataTotal.Text = "0";
//开始采集
this.capturer.Start();
}
catch (Exception ee)
{
MessageBox.Show(ee.Message);
}
}
private void Start()
{
_capturer = GetComponent <ICapturer> ();
}
public static Tuple <double, double> GetAbsolutePercentFromRelativePercent(double percentX, double percentY, ICapturer capturer)
{
var absoluteX = (capturer.CurrentScreenBounds.Width * percentX) + capturer.CurrentScreenBounds.Left;
var absoluteY = (capturer.CurrentScreenBounds.Height * percentY) + capturer.CurrentScreenBounds.Top;
return(new Tuple <double, double>(absoluteX / capturer.GetVirtualScreenWidth(), absoluteY / capturer.GetVirtualScreenHeight()));
}
private void InitCapturer()
{
_capturer = new CapturerClass();
_capturer.RegistrationName = "demo";
_capturer.RegistrationKey = "demo";
}
private void btnRecord_Click(object sender, EventArgs e)
{
try
{
if (_capturer.IsRunning)
{
_capturer.Stop();
System.Runtime.InteropServices.Marshal.ReleaseComObject(_capturer);
_capturer = null;
InitCapturer();
lstOverlays.Items.Clear();
btnRecord.Text = "Record";
grpProperties.Enabled = true;
lblStatus.Text = "Stopped";
}
else
{
_capturer.AudioEnabled = chkEnableAudio.Checked;
if (chkEnableAudio.Checked)
{
_capturer.CurrentAudioDeviceName = cmbAudioDevices.SelectedItem.ToString();
//_capturer.CurrentAudioCodecName = cmbAudioCodecs.SelectedItem.ToString();
}
_capturer.AddWebCamVideo = chkEnableWebcam.Checked;
if (chkEnableWebcam.Checked)
{
_capturer.SetWebCamVideoRectangle((int)nmWebCamLeft.Value, (int)nmWebCamTop.Value, (int)nmWebCamWidth.Value, (int)nmWebCamHeight.Value);
_capturer.CurrentWebCamName = cmbWebCam.SelectedItem.ToString();
}
//_capturer.CurrentVideoCodecName = cmbVideoCodec.SelectedItem.ToString();
if (!string.IsNullOrEmpty(txtLogFile.Text))
{
_capturer.SetLogFile(txtLogFile.Text);
}
_capturer.OutputFileName = txtOutputFile.Text;
_capturer.CapturingType = (CaptureAreaType)cmbCaptureAreaType.SelectedItem;
_previewGraphics = pnlPreview.CreateGraphics();
_previewHdc = _previewGraphics.GetHdc().ToInt32();
_capturer.SetFullPreviewContext(_previewHdc, 0, 0, pnlPreview.Width, pnlPreview.Height, 5);
_capturer.CaptureRectLeft = (int)nmCaptureLeft.Value;
_capturer.CaptureRectTop = (int)nmCaptureTop.Value;
_capturer.CaptureRectWidth = (int)nmCaptureWidth.Value;
_capturer.CaptureRectHeight = (int)nmCaptureHeight.Value;
_capturer.OutputWidth = (int)nmOutputWidth.Value;
_capturer.OutputHeight = (int)nmOutputHeight.Value;
foreach (ListViewItem item in lstOverlays.Items)
{
Overlay overlay = item.Tag as Overlay;
if (overlay is TextOverlay)
{
TextOverlay textOverlay = overlay as TextOverlay;
int a = (int)textOverlay.BackColor.A;
//_capturer.AddTextOverlay(textOverlay.Left, textOverlay.Top, textOverlay.Text, textOverlay.Font.Name,
// (int)textOverlay.Font.Size,textOverlay.Font.Bold, textOverlay.Font.Italic,
// textOverlay.Font.Underline, (uint)ColorTranslator.ToOle(textOverlay.Color));
_capturer.AddTextOverlayWithBackground2(textOverlay.Left, textOverlay.Top, textOverlay.Text, textOverlay.Font.Name,
(int)textOverlay.Font.Size, textOverlay.Font.Bold, textOverlay.Font.Italic,
textOverlay.Font.Underline,
textOverlay.Color.R, textOverlay.Color.G, textOverlay.Color.B, textOverlay.Color.A,
textOverlay.BackColor.R, textOverlay.BackColor.G, textOverlay.BackColor.B, textOverlay.BackColor.A);
}
else if (overlay is ImageOverlay)
{
ImageOverlay imageOverlay = overlay as ImageOverlay;
_capturer.AddImageOverlay(imageOverlay.Left, imageOverlay.Top, imageOverlay.FileName);
}
}
_capturer.Run();
//' IMPORTANT: if you want to check for some code if need to stop the recording then make sure you are
//' using Thread.Sleep(1) inside the checking loop, so you have the loop like
//' Do {
//' Thread.Sleep(1)
//' }
//' While(StopButtonNotClicked);
btnRecord.Text = "Stop";
grpProperties.Enabled = false;
lblStatus.Text = "Running";
}
}
catch (Exception ex)
{
MessageBox.Show(ex.Message);
}
}
public static async void BeginScreenCasting(string viewerID,
string requesterName,
ICapturer capturer,
Conductor conductor)
{
Viewer viewer;
byte[] encodedImageBytes;
var success = false;
Logger.Write($"Starting screen cast. Requester: {requesterName}. Viewer ID: {viewerID}. Capturer: {capturer.GetType().ToString()}. App Mode: {conductor.Mode} Desktop: {conductor.CurrentDesktopName}");
viewer = new Viewer()
{
Capturer = capturer,
DisconnectRequested = false,
Name = requesterName,
ViewerConnectionID = viewerID,
HasControl = true
};
while (!success)
{
success = conductor.Viewers.TryAdd(viewerID, viewer);
}
if (conductor.Mode == Enums.AppMode.Normal)
{
conductor.InvokeViewerAdded(viewer);
}
await conductor.OutgoingMessages.SendScreenCount(
capturer.SelectedScreen,
capturer.GetScreenCount(),
viewerID);
await conductor.OutgoingMessages.SendScreenSize(capturer.CurrentScreenBounds.Width, capturer.CurrentScreenBounds.Height, viewerID);
capturer.ScreenChanged += async(sender, bounds) =>
{
await conductor.OutgoingMessages.SendScreenSize(bounds.Width, bounds.Height, viewerID);
};
// TODO: SetThradDesktop causes issues with input after switching.
//var desktopName = Win32Interop.GetCurrentDesktop();
while (!viewer.DisconnectRequested)
{
try
{
// TODO: SetThradDesktop causes issues with input after switching.
//var currentDesktopName = Win32Interop.GetCurrentDesktop();
//if (desktopName.ToLower() != currentDesktopName.ToLower())
//{
// desktopName = currentDesktopName;
// Logger.Write($"Switching to desktop {desktopName} in ScreenCaster.");
// var inputDesktop = Win32Interop.OpenInputDesktop();
// User32.SetThreadDesktop(inputDesktop);
// User32.CloseDesktop(inputDesktop);
// continue;
//}
while (viewer.PendingFrames > 10)
{
await Task.Delay(1);
}
capturer.Capture();
var diffArea = ImageUtils.GetDiffArea(capturer.CurrentFrame, capturer.PreviousFrame, capturer.CaptureFullscreen);
if (diffArea.IsEmpty)
{
continue;
}
using (var newImage = capturer.CurrentFrame.Clone(diffArea, System.Drawing.Imaging.PixelFormat.Format32bppArgb))
{
if (capturer.CaptureFullscreen)
{
capturer.CaptureFullscreen = false;
}
//long newQuality;
//if (viewer.PendingFrames < 8)
//{
// newQuality = Math.Min(1, viewer.ImageQuality + 1);
//}
//else
//{
// newQuality = Math.Max(0, viewer.ImageQuality - 1);
//}
//if (newQuality != viewer.ImageQuality)
//{
// Logger.Write($"New quality: {newQuality}");
// viewer.ImageQuality = newQuality;
// viewer.FullScreenRefreshNeeded = true;
//}
//else if (viewer.FullScreenRefreshNeeded)
//{
// Logger.Write($"Quality stabilized.");
// capturer.CaptureFullscreen = true;
// viewer.FullScreenRefreshNeeded = false;
//}
encodedImageBytes = ImageUtils.EncodeBitmap(newImage, viewer.EncoderParams);
if (encodedImageBytes?.Length > 0)
{
await conductor.OutgoingMessages.SendScreenCapture(encodedImageBytes, viewerID, diffArea.Left, diffArea.Top, diffArea.Width, diffArea.Height, DateTime.UtcNow);
viewer.PendingFrames++;
}
// TODO: Even after disposing of the bitmap, GC doesn't collect in time. Memory usage soars quickly.
// Need to revisit this later.
GC.Collect();
}
}
catch (Exception ex)
{
Logger.Write(ex);
}
}
Logger.Write($"Ended screen cast. Requester: {requesterName}. Viewer ID: {viewerID}.");
success = false;
while (!success)
{
success = conductor.Viewers.TryRemove(viewerID, out _);
}
capturer.Dispose();
// Close if no one is viewing.
if (conductor.Viewers.Count == 0 && conductor.Mode == Enums.AppMode.Unattended)
{
Environment.Exit(0);
}
}
public void Close()
{
/* resetting common properties */
pausebutton.Visible = false;
stopbutton.Visible = false;
recbutton.Visible = true;
captureStarted = false;
capturing = false;
OnTick(0);
if (capturer == null)
return;
/* stopping and closing capturer */
try {
capturer.Stop();
capturer.Close();
if (capturerType == CapturerType.Live){
/* release and dispose live capturer */
capturer.Error -= OnError;
capturer.DeviceChange += OnDeviceChange;
capturerhbox.Remove(capturer as Gtk.Widget);
capturer.Dispose();
}
} catch (Exception e) {}
capturer = null;
}
public ScreenSpy(ICapturer capturer) => _capturer = capturer;
public async Task BeginScreenCasting(string viewerID,
string requesterName,
ICapturer capturer)
{
var conductor = Conductor.Current;
Logger.Write($"Starting screen cast. Requester: {requesterName}. Viewer ID: {viewerID}. Capturer: {capturer.GetType().ToString()}. App Mode: {conductor.Mode}");
byte[] encodedImageBytes;
var fpsQueue = new Queue <DateTime>();
var viewer = new Viewer()
{
Capturer = capturer,
DisconnectRequested = false,
Name = requesterName,
ViewerConnectionID = viewerID,
HasControl = true
};
conductor.Viewers.AddOrUpdate(viewerID, viewer, (id, v) => viewer);
if (conductor.Mode == Enums.AppMode.Normal)
{
conductor.InvokeViewerAdded(viewer);
}
await conductor.CasterSocket.SendMachineName(Environment.MachineName, viewerID);
await conductor.CasterSocket.SendScreenCount(
capturer.SelectedScreen,
capturer.GetScreenCount(),
viewerID);
await conductor.CasterSocket.SendScreenSize(capturer.CurrentScreenBounds.Width, capturer.CurrentScreenBounds.Height, viewerID);
capturer.ScreenChanged += async(sender, bounds) =>
{
await conductor.CasterSocket.SendScreenSize(bounds.Width, bounds.Height, viewerID);
};
while (!viewer.DisconnectRequested)
{
try
{
if (viewer.Latency > 30000)
{
// Viewer isn't responding. Abort sending.
break;
}
if (Conductor.Current.IsDebug)
{
while (fpsQueue.Any() && DateTime.Now - fpsQueue.Peek() > TimeSpan.FromSeconds(1))
{
fpsQueue.Dequeue();
}
fpsQueue.Enqueue(DateTime.Now);
Debug.WriteLine($"Capture FPS: {fpsQueue.Count}");
}
if (viewer.OutputBuffer > 150_000)
{
Debug.WriteLine($"Waiting for buffer to clear. Size: {viewer.OutputBuffer}");
await Task.Delay(50);
continue;
}
capturer.GetNextFrame();
var diffArea = ImageUtils.GetDiffArea(capturer.CurrentFrame, capturer.PreviousFrame, capturer.CaptureFullscreen);
if (diffArea.IsEmpty)
{
continue;
}
using (var newImage = capturer.CurrentFrame.Clone(diffArea, System.Drawing.Imaging.PixelFormat.Format32bppArgb))
{
if (capturer.CaptureFullscreen)
{
capturer.CaptureFullscreen = false;
}
if (viewer.AutoAdjustQuality && viewer.Latency > 1000)
{
var quality = (int)(viewer.ImageQuality * 1000 / viewer.Latency);
Debug.WriteLine($"Auto-adjusting image quality. Latency: {viewer.Latency}. Quality: {quality}");
encodedImageBytes = ImageUtils.EncodeBitmap(newImage, new EncoderParameters()
{
Param = new[]
{
new EncoderParameter(System.Drawing.Imaging.Encoder.Quality, quality)
}
});
}
else
{
encodedImageBytes = ImageUtils.EncodeBitmap(newImage, viewer.EncoderParams);
}
if (encodedImageBytes?.Length > 0)
{
await conductor.CasterSocket.SendScreenCapture(encodedImageBytes, viewerID, diffArea.Left, diffArea.Top, diffArea.Width, diffArea.Height, DateTime.UtcNow);
viewer.Latency += 300;
viewer.OutputBuffer += encodedImageBytes.Length;
}
}
}
catch (Exception ex)
{
Logger.Write(ex);
}
finally
{
GC.Collect();
}
}
Logger.Write($"Ended screen cast. Requester: {requesterName}. Viewer ID: {viewerID}.");
conductor.Viewers.TryRemove(viewerID, out _);
capturer.Dispose();
// Close if no one is viewing.
if (conductor.Viewers.Count == 0 && conductor.Mode == Enums.AppMode.Unattended)
{
await conductor.CasterSocket.Disconnect();
Environment.Exit(0);
}
}
private void btnRecord_Click(object sender, EventArgs e)
{
try
{
if (_capturer.IsRunning)
{
_capturer.Stop();
System.Runtime.InteropServices.Marshal.ReleaseComObject(_capturer);
_capturer = null;
InitCapturer();
// lstOverlays.Items.Clear();
btnRecord.Text = "Record";
tabControl1.Enabled = true;
lblStatus.Text = "Stopped";
timer1.Stop();
_captureStarted = false;
btnPause.Enabled = false;
_isPaused = false;
}
else
{
if (!_isPaused)
{
_capturer.AudioEnabled = chkEnableAudio.Checked;
if (chkEnableAudio.Checked)
{
_capturer.CurrentAudioDeviceName = cmbAudioDevices.SelectedItem.ToString();
//_capturer.CurrentAudioCodecName = cmbAudioCodecs.SelectedItem.ToString();
}
_capturer.AddWebCamVideo = chkEnableWebcam.Checked;
if (chkEnableWebcam.Checked)
{
_capturer.SetWebCamVideoRectangle((int)nmWebCamLeft.Value, (int)nmWebCamTop.Value, (int)nmWebCamWidth.Value, (int)nmWebCamHeight.Value);
_capturer.CurrentWebCamName = cmbWebCam.SelectedItem.ToString();
}
//_capturer.CurrentVideoCodecName = cmbVideoCodec.SelectedItem.ToString();
if (!string.IsNullOrEmpty(txtLogFile.Text) && cbWriteLog.Checked)
{
_capturer.SetLogFile(txtLogFile.Text);
}
_capturer.OutputFileName = txtOutputFile.Text;
_capturer.CapturingType = (CaptureAreaType)cmbCaptureAreaType.SelectedItem;
_previewGraphics = pnlPreview.CreateGraphics();
_previewHdc = _previewGraphics.GetHdc().ToInt32();
_capturer.SetFullPreviewContext(_previewHdc, 0, 0, pnlPreview.Width, pnlPreview.Height, 5);
_capturer.CaptureRectLeft = (int)nmCaptureLeft.Value;
_capturer.CaptureRectTop = (int)nmCaptureTop.Value;
_capturer.CaptureRectWidth = (int)nmCaptureWidth.Value;
_capturer.CaptureRectHeight = (int)nmCaptureHeight.Value;
_capturer.OutputWidth = (int)nmOutputWidth.Value;
_capturer.OutputHeight = (int)nmOutputHeight.Value;
foreach (ListViewItem item in lstOverlays.Items)
{
Overlay overlay = item.Tag as Overlay;
if (overlay is TextOverlay)
{
TextOverlay textOverlay = overlay as TextOverlay;
int a = (int)textOverlay.BackColor.A;
//_capturer.AddTextOverlay(textOverlay.Left, textOverlay.Top, textOverlay.Text, textOverlay.Font.Name,
// (int)textOverlay.Font.Size,textOverlay.Font.Bold, textOverlay.Font.Italic,
// textOverlay.Font.Underline, (uint)ColorTranslator.ToOle(textOverlay.Color));
_capturer.AddTextOverlayWithBackground2(textOverlay.Left, textOverlay.Top, textOverlay.Text, textOverlay.Font.Name,
(int)textOverlay.Font.Size, textOverlay.Font.Bold, textOverlay.Font.Italic,
textOverlay.Font.Underline,
textOverlay.Color.R, textOverlay.Color.G, textOverlay.Color.B, textOverlay.Color.A,
textOverlay.BackColor.R, textOverlay.BackColor.G, textOverlay.BackColor.B, textOverlay.BackColor.A);
}
else if (overlay is ImageOverlay)
{
ImageOverlay imageOverlay = overlay as ImageOverlay;
_capturer.AddImageOverlay(imageOverlay.Left, imageOverlay.Top, imageOverlay.FileName);
}
}
_capturer.RecordingMode = (RecordingModeType)cmbMotionDetection.SelectedItem;
_capturer.NoMotionDetectedActionInterval = (int)nmMotionInterval.Value;
_capturer.NoMotionDetectedActionSensitivity = (double)nmMotionSensitivity.Value;
_capturer.MonitorIndex = (int)cmbCurrentMonitor.SelectedItem;
}
_capturer.Run();
btnRecord.Text = "Stop";
tabControl1.Enabled = false;
lblStatus.Text = "Running";
_captureStarted = true;
timer1.Start();
_isPaused = false;
btnPause.Enabled = true;
}
}
catch (Exception ex)
{
MessageBox.Show(ex.Message);
}
}
public static async void BeginScreenCasting(string viewerID,
string requesterName,
ICapturer capturer,
Conductor conductor)
{
Viewer viewer;
byte[] encodedImageBytes;
Logger.Write($"Starting screen cast. Requester: {requesterName}. Viewer ID: {viewerID}. Capturer: {capturer.GetType().ToString()}. App Mode: {conductor.Mode} Desktop: {conductor.CurrentDesktopName}");
viewer = new Viewer()
{
Capturer = capturer,
DisconnectRequested = false,
Name = requesterName,
ViewerConnectionID = viewerID,
HasControl = true
};
conductor.Viewers.AddOrUpdate(viewerID, viewer, (id, v) => viewer);
if (conductor.Mode == Enums.AppMode.Normal)
{
conductor.InvokeViewerAdded(viewer);
}
await conductor.CasterSocket.SendMachineName(Environment.MachineName, viewerID);
await conductor.CasterSocket.SendScreenCount(
capturer.SelectedScreen,
capturer.GetScreenCount(),
viewerID);
await conductor.CasterSocket.SendScreenSize(capturer.CurrentScreenBounds.Width, capturer.CurrentScreenBounds.Height, viewerID);
capturer.ScreenChanged += async(sender, bounds) =>
{
await conductor.CasterSocket.SendScreenSize(bounds.Width, bounds.Height, viewerID);
};
var desktopName = string.Empty;
if (OSUtils.IsWindows)
{
desktopName = Win32Interop.GetCurrentDesktop();
}
while (!viewer.DisconnectRequested)
{
try
{
var currentDesktopName = Win32Interop.GetCurrentDesktop();
if (desktopName.ToLower() != currentDesktopName.ToLower())
{
desktopName = currentDesktopName;
Logger.Write($"Switching to desktop {desktopName} in ScreenCaster.");
Win32Interop.SwitchToInputDesktop();
continue;
}
while (viewer.PendingFrames > 10)
{
await Task.Delay(1);
}
capturer.Capture();
var diffArea = ImageUtils.GetDiffArea(capturer.CurrentFrame, capturer.PreviousFrame, capturer.CaptureFullscreen);
if (diffArea.IsEmpty)
{
continue;
}
using (var newImage = capturer.CurrentFrame.Clone(diffArea, System.Drawing.Imaging.PixelFormat.Format32bppArgb))
{
if (capturer.CaptureFullscreen)
{
capturer.CaptureFullscreen = false;
}
encodedImageBytes = ImageUtils.EncodeBitmap(newImage, viewer.EncoderParams);
if (encodedImageBytes?.Length > 0)
{
await conductor.CasterSocket.SendScreenCapture(encodedImageBytes, viewerID, diffArea.Left, diffArea.Top, diffArea.Width, diffArea.Height, DateTime.UtcNow);
viewer.PendingFrames++;
}
}
}
catch (Exception ex)
{
Logger.Write(ex);
}
finally
{
// TODO: Even after disposing of the bitmap, GC doesn't collect in time. Memory usage soars quickly.
// Need to revisit this later.
GC.Collect();
}
}
Logger.Write($"Ended screen cast. Requester: {requesterName}. Viewer ID: {viewerID}.");
conductor.Viewers.TryRemove(viewerID, out _);
capturer.Dispose();
// Close if no one is viewing.
if (conductor.Viewers.Count == 0 && conductor.Mode == Enums.AppMode.Unattended)
{
Environment.Exit(0);
}
}
public async Task BeginScreenCasting(string viewerID,
string requesterName,
ICapturer capturer)
{
var conductor = ServiceContainer.Instance.GetRequiredService <Conductor>();
var viewers = conductor.Viewers;
var mode = conductor.Mode;
var casterSocket = ServiceContainer.Instance.GetRequiredService <CasterSocket>();
Logger.Write($"Starting screen cast. Requester: {requesterName}. Viewer ID: {viewerID}. Capturer: {capturer.GetType().ToString()}. App Mode: {mode}");
byte[] encodedImageBytes;
var fpsQueue = new Queue <DateTime>();
var viewer = new Viewer()
{
Capturer = capturer,
DisconnectRequested = false,
Name = requesterName,
ViewerConnectionID = viewerID,
HasControl = true
};
viewers.AddOrUpdate(viewerID, viewer, (id, v) => viewer);
if (mode == Enums.AppMode.Normal)
{
conductor.InvokeViewerAdded(viewer);
}
if (OSUtils.IsWindows)
{
await InitializeWebRtc(viewer, casterSocket);
}
await casterSocket.SendMachineName(Environment.MachineName, viewerID);
await casterSocket.SendScreenCount(
capturer.SelectedScreen,
capturer.GetScreenCount(),
viewerID);
await casterSocket.SendScreenSize(capturer.CurrentScreenBounds.Width, capturer.CurrentScreenBounds.Height, viewerID);
capturer.ScreenChanged += async(sender, bounds) =>
{
await casterSocket.SendScreenSize(bounds.Width, bounds.Height, viewerID);
};
while (!viewer.DisconnectRequested)
{
try
{
if (viewer.IsStalled())
{
// Viewer isn't responding. Abort sending.
break;
}
if (conductor.IsDebug)
{
while (fpsQueue.Any() && DateTime.Now - fpsQueue.Peek() > TimeSpan.FromSeconds(1))
{
fpsQueue.Dequeue();
}
fpsQueue.Enqueue(DateTime.Now);
Debug.WriteLine($"Capture FPS: {fpsQueue.Count}");
}
await viewer.ThrottleIfNeeded();
capturer.GetNextFrame();
var diffArea = ImageUtils.GetDiffArea(capturer.CurrentFrame, capturer.PreviousFrame, capturer.CaptureFullscreen);
if (diffArea.IsEmpty)
{
continue;
}
using (var newImage = capturer.CurrentFrame.Clone(diffArea, PixelFormat.Format32bppArgb))
{
if (capturer.CaptureFullscreen)
{
capturer.CaptureFullscreen = false;
}
if (viewer.ShouldAdjustQuality())
{
var quality = (int)(viewer.ImageQuality * 1000 / viewer.Latency);
Logger.Debug($"Auto-adjusting image quality. Latency: {viewer.Latency}. Quality: {quality}");
encodedImageBytes = ImageUtils.EncodeBitmap(newImage, new EncoderParameters()
{
Param = new[]
{
new EncoderParameter(System.Drawing.Imaging.Encoder.Quality, quality)
}
});
}
else
{
encodedImageBytes = ImageUtils.EncodeBitmap(newImage, viewer.EncoderParams);
}
if (encodedImageBytes?.Length > 0)
{
if (viewer.IsUsingWebRtc())
{
viewer.RtcSession.SendCaptureFrame(diffArea.Left, diffArea.Top, diffArea.Width, diffArea.Height, encodedImageBytes);
viewer.WebSocketBuffer = 0;
viewer.Latency = 0;
}
else
{
await casterSocket.SendScreenCapture(encodedImageBytes, viewerID, diffArea.Left, diffArea.Top, diffArea.Width, diffArea.Height, DateTime.UtcNow);
viewer.Latency += 300;
// Shave some off so it doesn't get deadlocked by dropped frames.
viewer.WebSocketBuffer += (int)(encodedImageBytes.Length * .9);
}
}
}
}
catch (Exception ex)
{
Logger.Write(ex);
}
finally
{
GC.Collect();
}
}
Logger.Write($"Ended screen cast. Requester: {requesterName}. Viewer ID: {viewerID}.");
viewers.TryRemove(viewerID, out _);
var shouldExit = viewers.Count == 0 && mode == Enums.AppMode.Unattended;
try
{
viewer.Dispose();
if (shouldExit)
{
capturer.Dispose();
await casterSocket.Disconnect();
}
}
catch (Exception ex)
{
Logger.Write(ex);
}
finally
{
// Close if no one is viewing.
if (shouldExit)
{
Logger.Debug($"Exiting process ID {Process.GetCurrentProcess().Id}.");
Environment.Exit(0);
}
}
}
