public void StartCapture(IDeckLinkDisplayMode displayMode, IDeckLinkScreenPreviewCallback screenPreviewCallback, bool applyDetectedInputMode)
{
if (m_currentlyCapturing)
{
return;
}
var videoInputFlags = _BMDVideoInputFlags.bmdVideoInputFlagDefault;
m_applyDetectedInputMode = applyDetectedInputMode;
m_validInputSignal = false;
// Enable input video mode detection if the device supports it
if (supportsFormatDetection && m_applyDetectedInputMode)
{
videoInputFlags |= _BMDVideoInputFlags.bmdVideoInputEnableFormatDetection;
}
// Set the screen preview
m_deckLinkInput.SetScreenPreviewCallback(screenPreviewCallback);
// Set capture callback
m_deckLinkInput.SetCallback(this);
// Set the video input mode
m_deckLinkInput.EnableVideoInput(displayMode.GetDisplayMode(), _BMDPixelFormat.bmdFormat8BitYUV, videoInputFlags);
// Start the capture
m_deckLinkInput.StartStreams();
m_currentlyCapturing = true;
}
// Initialize DeckLink Stream
public bool Initialize()
{
if (!cardWorking)
{
return(false);
}
// DeckLink Input Callback
deckLinkInput.SetCallback(this);
deckLinkInput.SetScreenPreviewCallback(this);
var flags = _BMDVideoInputFlags.bmdVideoInputFlagDefault | _BMDVideoInputFlags.bmdVideoInputEnableFormatDetection;
var format = _BMDPixelFormat.bmdFormat8BitYUV;
//var format = _BMDPixelFormat.bmdFormat8BitARGB;
//var display = _BMDDisplayMode.bmdModeHD1080p5994; // input display mode
_BMDDisplayModeSupport support;
IDeckLinkDisplayMode tmp;
deckLinkInput.DoesSupportVideoMode(inputDisplayMode, format, flags, out support, out tmp);
if (support != _BMDDisplayModeSupport.bmdDisplayModeSupported)
{
throw new Exception("display mode not working: " + support);
}
// Keyer
if (keyerEnabled)
{
if (internalKeying)
{
deckLinkKeyer.Enable(0); // 1: External alpha output, 2: Internal
deckLinkKeyer.SetLevel((byte)keyingLevel);
}
else
{
deckLinkKeyer.Enable(1); // 1: External alpha output, 2: Internal
}
}
// Enable Input Stream
deckLinkInput.EnableVideoInput(inputDisplayMode, format, flags);
deckLinkInput.EnableAudioInput(_AudioSampleRate, _AudioSampleType, _AudioChannels);
deckLinkInput.StartStreams();
// Enable Video Output
//deckLinkOutput.EnableVideoOutput(displayMode, _BMDVideoOutputFlags.bmdVideoOutputFlagDefault);
return(true);
}
public void StopCapture()
{
logger.Debug("StopCapture()");
if (!currentlyCapturing)
{
return;
}
RemoveAllListeners();
// Stop the capture
deckLinkInput.StopStreams();
// disable callbacks
deckLinkInput.SetScreenPreviewCallback(null);
deckLinkInput.SetCallback(null);
currentlyCapturing = false;
}