public VideoPreviewViewmodel()
{
View = new VideoPreviewView {
DataContext = this
};
_videoSources = new ObservableCollection <string>(new[] { Common.Properties.Resources._none_ });
_videoSource = _videoSources.FirstOrDefault();
CommandRefreshSources = new UICommand
{
ExecuteDelegate = RefreshSources,
CanExecuteDelegate = o => _ndiFindInstance != IntPtr.Zero
};
CommandGotoNdiWebsite = new UICommand {
ExecuteDelegate = GotoNdiWebsite
};
CommandShowPopup = new UICommand {
ExecuteDelegate = o => DisplayPopup = true
};
CommandHidePopup = new UICommand {
ExecuteDelegate = o => DisplayPopup = false
};
InitNdiFind();
if (_ndiFindInstance != IntPtr.Zero)
{
Task.Run(() =>
{
if (Ndi.NDIlib_find_wait_for_sources(_ndiFindInstance, 5000))
{
Thread.Sleep(3000);
Application.Current?.Dispatcher.BeginInvoke((Action) delegate { RefreshSources(null); });
}
});
}
}
public VideoPreviewViewmodel()
{
View = new VideoPreviewView {
DataContext = this
};
_videoSources = new ObservableCollection <string>(new[] { Common.Properties.Resources._none_ });
_videoSource = _videoSources.FirstOrDefault();
CommandRefreshSources = new UICommand
{
ExecuteDelegate = RefreshSources,
CanExecuteDelegate = o => _ndiFindInstance != IntPtr.Zero
};
CommandGotoNdiWebsite = new UICommand {
ExecuteDelegate = GotoNdiWebsite
};
CommandShowPopup = new UICommand {
ExecuteDelegate = o => DisplayPopup = true
};
CommandHidePopup = new UICommand {
ExecuteDelegate = o => DisplayPopup = false
};
InitNdiFind();
var sourcesPoolThread = new Thread(() =>
{
while (_ndiFindInstance != IntPtr.Zero)
{
if (Ndi.NDIlib_find_wait_for_sources(_ndiFindInstance, int.MaxValue))
{
OnUiThread(() => RefreshSources(null));
}
}
})
{
Name = "NDI source list pooling thread",
Priority = ThreadPriority.BelowNormal,
IsBackground = true
};
sourcesPoolThread.Start();
}
static VideoPreviewViewmodel()
{
Ndi.AddRuntimeDir();
var findDesc = new NDIlib_find_create_t
{
p_groups = IntPtr.Zero,
show_local_sources = true,
p_extra_ips = IntPtr.Zero
};
NdiFindInstance = Ndi.NDIlib_find_create2(ref findDesc);
var sourcesPoolThread = new Thread(() =>
{
try
{
while (true)
{
if (Ndi.NDIlib_find_wait_for_sources(NdiFindInstance, int.MaxValue))
{
RefreshSources();
}
}
}
catch (Exception e)
{
Console.WriteLine(e);
}
})
{
Name = "NDI source list pooling thread",
Priority = ThreadPriority.BelowNormal,
IsBackground = true
};
sourcesPoolThread.Start();
}
