private void CloseRenderSession()
{
deckLinkInput.VideoDataArrived -= CurrentDevice_VideoDataArrived;
deckLinkInput.AudioDataArrived -= CurrentDevice_AudioDataArrived;
renderSession?.Close();
}
private void DeckLinkInput_CaptureChanged(bool formatChanged)
{
logger.Debug("DeckLinkInput_StateChanged(...) " + deckLinkInput.State + " " + formatChanged);
var state = deckLinkInput.State;
if (formatChanged)
{
if (state == DeckLink.CaptureState.Starting)
{// new format...
AudioRendererArgs audioArgs = GetAudioRenderArgs();
VideoRendererArgs videoArgs = GetVideoRenderArgs();
renderSession?.Setup(videoArgs, audioArgs);
OnCaptureInitialized();
}
else if (state == DeckLink.CaptureState.Capturing)
{// new format, restart media renderers...
if (renderSession != null)
{
renderSession.Close();
AudioRendererArgs audioArgs = GetAudioRenderArgs();
VideoRendererArgs videoArgs = GetVideoRenderArgs();
renderSession.Setup(videoArgs, audioArgs);
OnCaptureInitialized();
renderSession.Start();
}
}
}
else
{
if (state == DeckLink.CaptureState.Capturing)
{
renderSession?.Start();
OnCaptureStarted();
}
else if (state == DeckLink.CaptureState.Stopped)
{
errorCode = deckLinkInput.ErrorCode;
deckLinkInput.Shutdown();
renderSession?.Close();
OnCaptureStopped();
}
}
}
protected override void OnClosed(EventArgs e)
{
if (deckLinkInput != null)
{
deckLinkInput.AudioDataArrived -= CurrentDevice_AudioDataArrived;
deckLinkInput.VideoDataArrived -= CurrentDevice_VideoDataArrived;
deckLinkInput.StopCapture();
}
if (renderSession != null)
{
renderSession.Close();
renderSession = null;
}
MediaToolkitManager.Shutdown();
base.OnClosed(e);
}
public void StartCapture(int deviceIndex, long pixelFormat, long displayModeId)
{
logger.Debug("IDeckLinkInputControl::StartCapture(...) " + string.Join(" ", deviceIndex, pixelFormat, displayModeId));
try
{
DeviceIndex = deviceIndex;
windowHandle = this.Handle;
renderSession = new MediaRenderSession();
deckLinkInput = new DeckLinkInput();
deckLinkInput.CaptureChanged += DeckLinkInput_CaptureChanged;
deckLinkInput.VideoDataArrived += CurrentDevice_VideoDataArrived;
deckLinkInput.AudioDataArrived += CurrentDevice_AudioDataArrived;
deckLinkInput.StartCapture(deviceIndex, pixelFormat, displayModeId);
}
catch (Exception ex)
{
logger.Error(ex);
renderSession?.Close();
if (deckLinkInput != null)
{
deckLinkInput.VideoDataArrived -= CurrentDevice_VideoDataArrived;
deckLinkInput.AudioDataArrived -= CurrentDevice_AudioDataArrived;
deckLinkInput.CaptureChanged -= DeckLinkInput_CaptureChanged;
deckLinkInput.Shutdown();
deckLinkInput = null;
}
throw;
}
}
