IEnumerator <IDeckLinkDisplayMode> IEnumerable <IDeckLinkDisplayMode> .GetEnumerator()
{
IDeckLinkDisplayModeIterator displayModeIterator;
m_deckLinkInput.GetDisplayModeIterator(out displayModeIterator);
return(new DisplayModeEnum(displayModeIterator));
}
// Get IDeckLink Interface
private bool GetIDeckLinkInterface()
{
try
{
deckLinkOutput = (IDeckLinkOutput)DeckLink;
deckLinkInput = (IDeckLinkInput)DeckLink;
deckLinkConfig = (IDeckLinkConfiguration)DeckLink;
IDeckLinkDisplayModeIterator displayIterator;
deckLinkInput.GetDisplayModeIterator(out displayIterator);
var supportedModes = new List <IDeckLinkDisplayMode>();
deckLinkKeyer = (IDeckLinkKeyer)DeckLink;
}
catch
{
return(false);
}
return(true);
}
public static List <DeckLinkDisplayModeDescription> GetDisplayDescriptions(IDeckLinkInput deckLinkInput, List <_BMDPixelFormat> pixelFormats,
_BMDVideoConnection connection = _BMDVideoConnection.bmdVideoConnectionHDMI,
_BMDSupportedVideoModeFlags videoModeFlags = _BMDSupportedVideoModeFlags.bmdSupportedVideoModeDefault)
{
List <DeckLinkDisplayModeDescription> displayDescriptions = new List <DeckLinkDisplayModeDescription>();
IDeckLinkDisplayModeIterator iterator = null;
try
{
deckLinkInput.GetDisplayModeIterator(out iterator);
while (true)
{
IDeckLinkDisplayMode displayMode = null;
try
{
iterator.Next(out displayMode);
if (displayMode == null)
{
break;
}
var displayModeId = displayMode.GetDisplayMode();
displayMode.GetName(out string displayName);
displayMode.GetFrameRate(out long frameDuration, out long timeScale);
var fps = (double)timeScale / frameDuration;
int width = displayMode.GetWidth();
int height = displayMode.GetHeight();
var resolution = width + "x" + height;
var displayModeFlags = displayMode.GetFlags();
var fieldDominance = displayMode.GetFieldDominance();
foreach (var pixFmt in pixelFormats)
{
deckLinkInput.DoesSupportVideoMode(connection, displayModeId, pixFmt, videoModeFlags, out int supported);
if (supported != 0)
{
displayDescriptions.Add(new DeckLinkDisplayModeDescription
{
ModeId = (long)displayModeId,
Width = width,
Height = height,
Fps = fps,
PixFmt = (long)pixFmt,
Description = displayName + " (" + resolution + " " + fps.ToString("0.##") + " fps " + GetFourCCStr(pixFmt) + ")",
});
}
else
{
//Console.WriteLine("Display mode not supported: "+ displayModeId + " " + pixFmt);
}
}
}
finally
{
if (displayMode != null)
{
Marshal.ReleaseComObject(displayMode);
displayMode = null;
}
}
}
}
finally
{
if (iterator != null)
{
Marshal.ReleaseComObject(iterator);
iterator = null;
}
}
return(displayDescriptions);
}
public DeckLinkDevice(IDeckLink deckLink)
{
this.deckLink = deckLink;
// Get input interface
try
{
deckLinkInput = (IDeckLinkInput)this.deckLink;
deckLinkStatus = (IDeckLinkStatus)this.deckLink;
bool videoInputSignalLocked = false;
deckLinkStatus.GetFlag(_BMDDeckLinkStatusID.bmdDeckLinkStatusVideoInputSignalLocked, out int videoInputSignalLockedFlag);
videoInputSignalLocked = (videoInputSignalLockedFlag != 0);
if (videoInputSignalLocked)
{
throw new Exception("Video input locked");
}
this.deckLink.GetDisplayName(out deviceName);
this.deckLink.GetModelName(out modelName);
var deckLinkAttributes = (IDeckLinkProfileAttributes)deckLink;
deckLinkAttributes.GetFlag(_BMDDeckLinkAttributeID.BMDDeckLinkSupportsInputFormatDetection, out int supportsFormatDetectionFlag);
supportsFormatDetection = (supportsFormatDetectionFlag != 0);
logger.Debug("------------------------- " + deviceName + " -------------------------");
IDeckLinkDisplayModeIterator iterator = null;
deckLinkInput.GetDisplayModeIterator(out iterator);
IDeckLinkDisplayMode displayMode = null;
do
{
if (iterator != null)
{
iterator.Next(out displayMode);
if (displayMode != null)
{
displayMode.GetName(out string displayName);
displayMode.GetFrameRate(out long frameDuration, out long timeScale);
int width = displayMode.GetWidth();
int height = displayMode.GetHeight();
var bdmDisplayMode = displayMode.GetDisplayMode();
var displayModeFlags = displayMode.GetFlags();
var fieldDominance = displayMode.GetFieldDominance();
var resolution = width + "x" + height;
// var log = string.Join(", " , displayName, resolution, bdmDisplayMode, displayModeFlags, frameDuration, timeScale, fieldDominance);
var videoModeFlags = _BMDSupportedVideoModeFlags.bmdSupportedVideoModeDefault;
//var allPixelFormats = Enum.GetValues(typeof(_BMDPixelFormat));
var formatLog = "";
foreach (var fmtObj in pixelFormats)
{
var pixelFormat = (_BMDPixelFormat)fmtObj;
deckLinkInput.DoesSupportVideoMode(_BMDVideoConnection.bmdVideoConnectionHDMI, bdmDisplayMode, pixelFormat, videoModeFlags, out int supported);
if (supported != 0)
{
formatLog += " " + pixelFormat;
}
}
var log = string.Join(", ", displayName, resolution);
logger.Debug(displayName + " " + resolution + " (" + formatLog + ")");
}
else
{
break;
}
}
}while (displayMode != null);
logger.Debug("-----------------------------------------------------");
}
catch (InvalidCastException)
{
// No output interface found, eg in case of DeckLink Mini Monitor
return;
}
}
