public void StartCapture(_BMDDisplayMode mode, IDeckLinkScreenPreviewCallback screenPreviewCallback, bool applyDetectedInputMode)
{
logger.Debug("StartCapture(...) " + mode);
if (currentlyCapturing)
{
return;
}
deckLinkInput.GetDisplayMode(_BMDDisplayMode.bmdModeHD1080i5994, out IDeckLinkDisplayMode displayMode);
StartCapture(displayMode, screenPreviewCallback, applyDetectedInputMode);
}
internal DeckLinkDeviceDescription GetDeviceDescription()
{
if (!initialized)
{
return(null);
}
DeckLinkDeviceDescription deviceDescription = null;
deckLink.GetDisplayName(out string deviceName);
deckLinkAttrs.GetString(_BMDDeckLinkAttributeID.BMDDeckLinkDeviceHandle, out string deviceHandle);
deckLinkStatus.GetFlag(_BMDDeckLinkStatusID.bmdDeckLinkStatusVideoInputSignalLocked, out int videoInputSignalLockedFlag);
bool available = (videoInputSignalLockedFlag != 0);
deckLinkStatus.GetInt(_BMDDeckLinkStatusID.bmdDeckLinkStatusBusy, out long deviceBusyStateFlag);
_BMDDeviceBusyState deviceBusyState = (_BMDDeviceBusyState)deviceBusyStateFlag;
bool isBusy = (deviceBusyState == _BMDDeviceBusyState.bmdDeviceCaptureBusy);
deckLinkStatus.GetInt(_BMDDeckLinkStatusID.bmdDeckLinkStatusCurrentVideoInputMode, out long bmdDeckLinkStatusCurrentVideoInputModeFlag);
_BMDDisplayMode displayModeId = (_BMDDisplayMode)bmdDeckLinkStatusCurrentVideoInputModeFlag;
deckLinkStatus.GetInt(_BMDDeckLinkStatusID.bmdDeckLinkStatusCurrentVideoInputPixelFormat, out long currentVideoInputPixelFormatFlag);
_BMDPixelFormat pixelFormat = (_BMDPixelFormat)currentVideoInputPixelFormatFlag;
DeckLinkDisplayModeDescription displayDescription = null;
IDeckLinkDisplayMode displayMode = null;
try
{
deckLinkInput.GetDisplayMode(displayModeId, out displayMode);
int width = displayMode.GetWidth();
int height = displayMode.GetHeight();
displayMode.GetFrameRate(out long duration, out long scale);
displayMode.GetName(out string displayName);
displayDescription = new DeckLinkDisplayModeDescription
{
Width = width,
Height = height,
PixFmt = (long)pixelFormat,
Fps = ((double)scale / duration),
Description = displayName,
};
}
finally
{
if (displayMode != null)
{
Marshal.ReleaseComObject(displayMode);
}
}
deviceDescription = new DeckLinkDeviceDescription
{
DeviceHandle = deviceHandle,
DeviceName = deviceName,
Available = available,
IsBusy = isBusy,
DisplayModeIds = new List <DeckLinkDisplayModeDescription> {
displayDescription
},
};
return(deviceDescription);
}