void IDeckLinkDeviceNotificationCallback.DeckLinkDeviceArrived(IDeckLink device)
{
logger.Verb("IDeckLinkDeviceNotificationCallback::DeckLinkDeviceArrived()");
DeckLinkDeviceDescription inputDescr = null;
var inputDevice = new DeckLinkInput(device);
if (inputDevice.Init())
{
inputDescr = inputDevice.GetDeviceDescription();
inputDevices.Add(inputDevice);
InputDeviceArrived?.Invoke(inputDescr);
}
if (inputDescr == null)
{// нас интересуют только decklink input
if (inputDevice != null)
{
inputDevice.Dispose();
inputDevice = null;
}
if (device != null)
{
Marshal.ReleaseComObject(device);
device = null;
}
}
}
void IDeckLinkDeviceNotificationCallback.DeckLinkDeviceRemoved(IDeckLink device)
{// Удаление не проверялось т.к не было в наличии устройств поддерживающий динамическое отключение
logger.Verb("IDeckLinkDeviceNotificationCallback::DeckLinkDeviceRemoved()");
try
{
var inputDevice = inputDevices.FirstOrDefault(d => d.deckLink == device);
DeckLinkDeviceDescription inputDescr = inputDevice?.GetDeviceDescription();
if (inputDescr != null)
{
bool removed = inputDevices.Remove(inputDevice);
Debug.Assert(removed, "removed");
InputDeviceRemoved?.Invoke(inputDescr);
}
if (inputDevice != null)
{
inputDevice.Dispose();
inputDevice = null;
}
}
finally
{
if (device != null)
{
var refCount = Marshal.ReleaseComObject(device);
Debug.Assert(refCount == 0, "refCount == 0");
device = null;
}
}
}
private void DeviceManager_DeviceRemoved(DeckLinkDeviceDescription device)
{
//logger.Debug("DeviceManager_DeviceRemoved() " + device?.ToString() ?? "");
if (device != null)
{
var displayMode = device.DisplayModeIds.FirstOrDefault();
logger.Info("DeviceRemoved: " + device.ToString() + " " + displayMode.ToString());
}
}
public List <DeckLinkDeviceDescription> GetInputs()
{
List <DeckLinkDeviceDescription> deviceDescriptions = new List <DeckLinkDeviceDescription>();
for (int index = 0; index < inputDevices.Count; index++)
{
var inputDevice = inputDevices[index];
DeckLinkDeviceDescription deviceDescription = inputDevice.GetDeviceDescription();
if (deviceDescription != null)
{
deviceDescription.DeviceIndex = index;
deviceDescriptions.Add(deviceDescription);
}
}
return(deviceDescriptions);
}
private void comboBoxDevices_SelectedValueChanged(object sender, EventArgs e)
{
logger.Debug("comboBoxDevices_SelectedValueChanged(...)");
var selectedItem = comboBoxDevices.SelectedItem;
if (selectedItem != null)
{
var selectedDevice = selectedItem as DeckLinkDeviceDescription;
if (selectedDevice != null)
{
currentDevice = selectedDevice;
comboBoxDisplayModes.DisplayMember = "Description";
displayModes.Add(new DeckLinkDisplayModeDescription {
Description = "Auto"
});
displayModes.AddRange(currentDevice.DisplayModeIds);
comboBoxDisplayModes.DataSource = displayModes;
}
}
}
public static List <DeckLinkDeviceDescription> GetDeckLinkInputDevices()
{
List <DeckLinkDeviceDescription> devices = new List <DeckLinkDeviceDescription>();
IDeckLinkIterator deckLinkIterator = null;
try
{
deckLinkIterator = new CDeckLinkIterator();
int index = 0;
IDeckLink deckLink = null;
do
{
if (deckLink != null)
{
Marshal.ReleaseComObject(deckLink);
deckLink = null;
}
deckLinkIterator.Next(out deckLink);
if (deckLink == null)
{
break;
}
deckLink.GetDisplayName(out string deviceName);
try
{
var deckLinkInput = (IDeckLinkInput)deckLink;
var deckLinkStatus = (IDeckLinkStatus)deckLink;
var deckLinkAttrs = (IDeckLinkProfileAttributes)deckLink;
deckLinkAttrs.GetString(_BMDDeckLinkAttributeID.BMDDeckLinkDeviceHandle, out string deviceHandle);
deckLinkStatus.GetFlag(_BMDDeckLinkStatusID.bmdDeckLinkStatusVideoInputSignalLocked, out int videoInputSignalLockedFlag);
bool available = (videoInputSignalLockedFlag != 0);
var pixelFormats = SupportedPixelFormats.Keys.ToList();
var displayModeIds = GetDisplayDescriptions(deckLinkInput, pixelFormats);
DeckLinkDeviceDescription deviceDescription = new DeckLinkDeviceDescription
{
DeviceHandle = deviceHandle,
DeviceIndex = index,
DeviceName = deviceName,
Available = available,
DisplayModeIds = displayModeIds,
};
devices.Add(deviceDescription);
//Marshal.ReleaseComObject(deckLinkInput);
//Marshal.ReleaseComObject(deckLinkStatus);
}
catch (InvalidCastException)
{
}
index++;
}while (deckLink != null);
}
catch (Exception ex)
{
if (deckLinkIterator == null)
{
throw new Exception("This application requires the DeckLink drivers installed.\n" +
"Please install the Blackmagic DeckLink drivers to use the features of this application");
}
throw;
}
return(devices);
}
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);
}
public List <DeckLinkDeviceDescription> FindInputs()
{
logger.Debug("DeckLinkDeviceManager::GetDeckLinkInputs()");
List <DeckLinkDeviceDescription> devices = new List <DeckLinkDeviceDescription>();
IDeckLinkIterator deckLinkIterator = null;
try
{
deckLinkIterator = new CDeckLinkIterator();
int index = 0;
IDeckLink deckLink = null;
do
{
if (deckLink != null)
{
Marshal.ReleaseComObject(deckLink);
deckLink = null;
}
deckLinkIterator.Next(out deckLink);
if (deckLink == null)
{
break;
}
var inputDevice = new DeckLinkInput(deckLink);
if (inputDevice.Init())
{
DeckLinkDeviceDescription deviceDescription = inputDevice.GetDeviceDescription();
if (deviceDescription != null)
{
deviceDescription.DeviceIndex = index;
devices.Add(deviceDescription);
index++;
}
}
if (inputDevice != null)
{
inputDevice.Dispose();
inputDevice = null;
}
}while (deckLink != null);
}
catch (Exception ex)
{
logger.Error(ex);
}
finally
{
if (deckLinkIterator != null)
{
Marshal.ReleaseComObject(deckLinkIterator);
deckLinkIterator = null;
}
}
return(devices);
}
