public DLDirect(IDeckLink deckLink, IDeckLinkDisplayMode displayMode)
{
PreRollFrameCount = 4;
this.displayMode = displayMode;
this.m_deckLink = deckLink;
DisplayWidth = displayMode.GetWidth();
DisplayHeight = displayMode.GetHeight();
m_running = false;
// Get the IDeckLinkOutput interface
m_deckLinkOutput = (IDeckLinkOutput)m_deckLink;
// Provide this class as a delegate to the audio and video output interfaces
m_deckLinkOutput.SetScheduledFrameCompletionCallback(this);
m_frameWidth = displayMode.GetWidth();
m_frameHeight = displayMode.GetHeight();
displayMode.GetFrameRate(out m_frameDuration, out m_frameTimescale);
// Calculate the number of frames per second, rounded up to the nearest integer. For example, for NTSC (29.97 FPS), framesPerSecond == 30.
m_framesPerSecond = (uint)((m_frameTimescale + (m_frameDuration - 1)) / m_frameDuration);
FPS = (int)m_framesPerSecond;
// Set the video output mode
m_deckLinkOutput.EnableVideoOutput(displayMode.GetDisplayMode(), _BMDVideoOutputFlags.bmdVideoOutputFlagDefault);
// Generate the frame used for playback
m_deckLinkOutput.CreateVideoFrame(m_frameWidth, m_frameHeight, m_frameWidth * 4, _BMDPixelFormat.bmdFormat8BitBGRA, _BMDFrameFlags.bmdFrameFlagDefault, out m_videoFramePlayback);
m_totalFramesScheduled = 0;
}
private void DisplayModeChanged(IDeckLinkDisplayMode newDisplayMode)
{
foreach (DisplayModeEntry item in comboBoxVideoFormat.Items)
{
if (item.displayMode.GetDisplayMode() == newDisplayMode.GetDisplayMode())
{
comboBoxVideoFormat.SelectedItem = item;
}
}
}
private void comboBoxVideoFormat_SelectedIndexChanged(object sender, EventArgs e)
{
if (comboBoxVideoFormat.SelectedIndex < 0)
{
return;
}
m_selectedDisplayMode = ((DisplayModeEntry)comboBoxVideoFormat.SelectedItem).displayMode;
RefreshPixelFormatList();
}
public void ConfigureDeckLinks(int DLIdx, int DLDisplayModeIdx)
{
IDeckLink dl = DLHelper.GetDeckLinks()[DLIdx];
IDeckLinkDisplayMode dl1DisplayMode = DLHelper.GetDisplayModes(dl)[DLDisplayModeIdx];
output = new DLDirect(dl, dl1DisplayMode);
output.FrameDrawnCallback = NextFrame;
DisplayWidth = output.DisplayWidth;
DisplayHeight = output.DisplayHeight;
}
private void DisplayModeChanged(IDeckLinkDisplayMode newDisplayMode)
{
foreach (DisplayModeEntry item in comboBoxVideoFormat.Items)
{
if (item.displayMode.GetDisplayMode() == newDisplayMode.GetDisplayMode())
{
comboBoxVideoFormat.SelectedItem = item;
}
if (m_selectedDevice != null)
{
labelPixelFormat.Text = m_selectedDevice.pxFormat;
}
}
}
public DeckLinkRenderer(IDeckLinkOutput newDeckLinkOutput, IDeckLinkDisplayMode newDisplayMode)
{
running = false;
deckLinkOutput = newDeckLinkOutput;
displayMode = newDisplayMode;
frameWidth = displayMode.GetWidth();
frameHeight = displayMode.GetHeight();
displayMode.GetFrameRate(out frameDuration, out frameTimescale);
framesPerSecond = (uint)((frameTimescale + (frameDuration - 1)) / frameDuration);
deckLinkOutput.SetScreenPreviewCallback(this);
deckLinkOutput.SetScheduledFrameCompletionCallback(this);
deckLinkOutput.SetAudioCallback(this);
}
public void ConfigureDeckLinks(int DL1Idx, int DL2Idx, int DL1DisplayModeIdx, int DL2DisplayModeIdx)
{
IDeckLink dl1 = DLHelper.GetDeckLinks()[DL1Idx];
IDeckLink dl2 = DLHelper.GetDeckLinks()[DL2Idx];
IDeckLinkDisplayMode dl1DisplayMode = DLHelper.GetDisplayModes(dl1)[DL1DisplayModeIdx];
IDeckLinkDisplayMode dl2DisplayMode = DLHelper.GetDisplayModes(dl2)[DL2DisplayModeIdx];
output_A = new DLDirect(dl1, dl1DisplayMode);
output_B = new DLDirect(dl2, dl2DisplayMode);
output_A.FrameDrawnCallback = NextFrame;
DisplayWidth = output_A.DisplayWidth;
DisplayHeight = output_A.DisplayHeight;
}
public Form1()
{
InitializeComponent();
captureVideo();
Decklink decklink = new Decklink();
IDeckLinkOutput device = (IDeckLinkOutput)decklink.GetAvailableDeckLinks()[0];
IDeckLinkDisplayMode mode = (IDeckLinkDisplayMode)decklink.GetAvailableDisplayModes(device)[0];
DeckLinkRenderer renderer = new DeckLinkRenderer(device, mode);
renderer.Start();
Thread.Sleep(3000);
renderer.Stop();
}
public static string LogDisplayMode(IDeckLinkDisplayMode deckLinkDisplayMode)
{
string log = "";
if (deckLinkDisplayMode != null)
{
var displayMode = deckLinkDisplayMode.GetDisplayMode();
int width = deckLinkDisplayMode.GetWidth();
int height = deckLinkDisplayMode.GetHeight();
deckLinkDisplayMode.GetName(out string name);
var fieldDominance = deckLinkDisplayMode.GetFieldDominance();
deckLinkDisplayMode.GetFrameRate(out long frameDuration, out long timeScale);
var fps = ((double)timeScale / frameDuration);
log = displayMode + " " + width + "x" + height + " " + fps.ToString("0.00") + "fps " + fieldDominance;
}
return(log);
}
/// <summary>
/// SetCallback
/// </summary>
public void VideoInputFormatChanged(_BMDVideoInputFormatChangedEvents notificationEvents, IDeckLinkDisplayMode newDisplayMode, _BMDDetectedVideoInputFormatFlags detectedSignalFlags)
{
if (newDisplayMode == null)
{
return;
}
Run(() => notifications.Text = string.Format("Video format changed: mode={0}", newDisplayMode.GetDisplayMode()));
Marshal.ReleaseComObject(newDisplayMode);
}
public DisplayModeEntry(IDeckLinkDisplayMode displayMode)
{
this.displayMode = displayMode;
}
void IDeckLinkInputCallback.VideoInputFormatChanged(_BMDVideoInputFormatChangedEvents notificationEvents, IDeckLinkDisplayMode newDisplayMode, _BMDDetectedVideoInputFormatFlags detectedSignalFlags)
{
}
public void VideoInputFormatChanged(_BMDVideoInputFormatChangedEvents notificationEvents, IDeckLinkDisplayMode newDisplayMode, _BMDDetectedVideoInputFormatFlags detectedSignalFlags)
{
Reinitialise = true;
}
private Decklink(IDeckLink cDevice)
{
(new Logger()).WriteDebug3("in");
try
{
nAudioQueueLength = nAudioQueueLengthPrevious = 0;
nBTLAudioQueueLengthPrevious = nBTLVideoQueueLengthPrevious = nVideoQueueLengthPrevious = 0;
_iDLDevice = cDevice;
if(Preferences.bDeviceInput)
_iDLInput = (IDeckLinkInput)_iDLDevice;
else
_iDLOutput = (IDeckLinkOutput)_iDLDevice;
IDeckLinkDisplayModeIterator cDisplayModeIterator;
IDeckLinkDisplayMode cNextDLDisplayMode;
string sDisplayModeName = "";
string sMessage = "decklink supported modes:<br>";
if (Preferences.bDeviceInput)
{
_iDLInputDisplayMode = null;
_iDLInput.GetDisplayModeIterator(out cDisplayModeIterator);
while (true)
{
cDisplayModeIterator.Next(out cNextDLDisplayMode);
if (cNextDLDisplayMode == null)
break;
cNextDLDisplayMode.GetName(out sDisplayModeName);
if (null == _iDLInputDisplayMode && sDisplayModeName.ToLower().Contains(Preferences.sVideoFormat))
{
sMessage += "selected:";
_iDLInputDisplayMode = cNextDLDisplayMode;
}
else
sMessage += "\t";
sMessage += sDisplayModeName + "<br>";
}
(new Logger()).WriteNotice(sMessage);
if (null == _iDLInputDisplayMode)
throw new Exception("can't find " + Preferences.sVideoFormat + " mode within specified device for input");
}
else
{
_nFramesAudioDropped = 0;
_iDLOutputDisplayMode = null;
_iDLOutput.GetDisplayModeIterator(out cDisplayModeIterator);
while (true)
{
cDisplayModeIterator.Next(out cNextDLDisplayMode);
if (cNextDLDisplayMode == null)
break;
cNextDLDisplayMode.GetName(out sDisplayModeName);
if (null == _iDLOutputDisplayMode && sDisplayModeName.ToLower().Contains(Preferences.sVideoFormat))
{
sMessage += "selected:";
_iDLOutputDisplayMode = cNextDLDisplayMode;
}
else
sMessage += "\t";
sMessage += sDisplayModeName + "<br>";
}
(new Logger()).WriteNotice(sMessage);
if (null == _iDLOutputDisplayMode)
throw new Exception("can't find " + Preferences.sVideoFormat + " mode within specified device for output");
stArea = new Area(0, 0, (ushort)_iDLOutputDisplayMode.GetWidth(), (ushort)_iDLOutputDisplayMode.GetHeight());
long nFrameDuration, nFrameTimescale;
_iDLOutputDisplayMode.GetFrameRate(out nFrameDuration, out nFrameTimescale);
_nFPS = (ushort)((nFrameTimescale + (nFrameDuration - 1)) / nFrameDuration); //до ближайшего целого - взято из примера деклинка
_bDoWritingFrames = false;
_aqWritingFrames = new Queue<byte[]>();
_cThreadWritingFramesWorker = new System.Threading.Thread(WritingFramesWorker);
_cThreadWritingFramesWorker.IsBackground = true;
_cThreadWritingFramesWorker.Priority = System.Threading.ThreadPriority.Normal;
_cThreadWritingFramesWorker.Start();
if (Preferences.bAudio)
{
switch (Preferences.nAudioBitDepth)
{
case 32:
_eAudioSampleDepth = _BMDAudioSampleType.bmdAudioSampleType32bitInteger;
break;
case 16:
default:
_eAudioSampleDepth = _BMDAudioSampleType.bmdAudioSampleType16bitInteger;
break;
}
switch (Preferences.nAudioSamplesRate)
{
case 48000:
_eAudioSampleRate = _BMDAudioSampleRate.bmdAudioSampleRate48kHz;
break;
default:
throw new Exception("unsupported audio sample rate [" + Preferences.nAudioSamplesRate + "]");
}
//_pAudioSamplesBuffer = Marshal.AllocCoTaskMem((int)_nAudioFrameSize_InBytes);
_cAudioBuffer = new AudioBuffer();
_nAudioBufferCapacity_InSamples = Preferences.nAudioSamplesPerFrame * Preferences.nQueueDeviceLength;
//for (int nIndx = 0; _nAudioFrameSize_InBytes > nIndx; nIndx++)
// Marshal.WriteByte(_pAudioSamplesBuffer, nIndx, 0);
_nTimescale = (ushort)_eAudioSampleRate;
_nFrameDuration = (ushort)(_nTimescale / _nFPS);
}
if (null != Preferences.cDownStreamKeyer)
_iDeckLinkKeyer = (IDeckLinkKeyer)_iDLDevice;
}
}
catch (Exception ex)
{
(new Logger()).WriteError(ex);
throw;
}
(new Logger()).WriteDebug4("return");
}
// Video Input Format Changed
public void VideoInputFormatChanged(_BMDVideoInputFormatChangedEvents notificationEvents, IDeckLinkDisplayMode newDisplayMode, _BMDDetectedVideoInputFormatFlags detectedSignalFlags)
{
}
public DisplayModeItem(IDeckLinkDisplayMode displayMode)
{
this.displayMode = displayMode;
}
public void VideoInputFormatChanged(_BMDVideoInputFormatChangedEvents notificationEvents, IDeckLinkDisplayMode newDisplayMode, _BMDDetectedVideoInputFormatFlags detectedSignalFlags)
{
MessageBox.Show("format changed");
}
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);
}
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);
}
