void IDeckLinkInputCallback.VideoInputFrameArrived(IDeckLinkVideoInputFrame videoFrame, IDeckLinkAudioInputPacket audioPacket)
{
IntPtr audioData = (IntPtr)0;
IntPtr videoData = (IntPtr)0;
if (videoFrame != null)
{
bool inputSignalChange = videoFrame.GetFlags().HasFlag(_BMDFrameFlags.bmdFrameHasNoInputSource);
if (inputSignalChange != m_validInputSignal)
{
m_validInputSignal = inputSignalChange;
InputSignalChanged(m_validInputSignal);
}
if (inputSignalChange == false) //i.e. frame is valid
{
videoFrame.GetBytes(out videoData);
m_mainWindow.callFrameLoop(m_number, videoData);
}
}
if (audioPacket != null)
{
audioPacket.GetBytes(out audioData);
m_mainWindow.handleAudio(m_number, audioData);
}
System.Runtime.InteropServices.Marshal.ReleaseComObject(audioPacket);
System.Runtime.InteropServices.Marshal.ReleaseComObject(videoFrame);
}
void IDeckLinkInputCallback.VideoInputFrameArrived(IDeckLinkVideoInputFrame videoFrame, IDeckLinkAudioInputPacket audioPacket)
{
if (videoFrame != null)
{
bool inputSignal = videoFrame.GetFlags().HasFlag(_BMDFrameFlags.bmdFrameHasNoInputSource);
if (inputSignal != m_validInputSignal)
{
m_validInputSignal = inputSignal;
InputSignalChanged(m_validInputSignal);
}
}
System.Runtime.InteropServices.Marshal.ReleaseComObject(videoFrame);
}
void IDeckLinkInputCallback.VideoInputFrameArrived(IDeckLinkVideoInputFrame videoFrame, IDeckLinkAudioInputPacket audioPacket)
{
if (videoFrame != null)
{
bool inputSignalAbsent = videoFrame.GetFlags().HasFlag(_BMDFrameFlags.bmdFrameHasNoInputSource);
// Detect change in input signal, restart stream when valid stream detected
if (!inputSignalAbsent && m_prevInputSignalAbsent)
{
m_deckLinkInput.StopStreams();
m_deckLinkInput.FlushStreams();
m_deckLinkInput.StartStreams();
}
m_prevInputSignalAbsent = inputSignalAbsent;
// Register video frame received event
var handler = VideoFrameArrivedHandler;
// Check whether there are any subscribers to VideoFrameArrivedHandler
if (handler != null)
{
handler(this, new DeckLinkVideoFrameArrivedEventArgs(videoFrame, inputSignalAbsent));
}
}
if (audioPacket != null)
{
// Register audio packet received event
var handler = AudioPacketArrivedHandler;
// Check whether there are any subscribers to AudioPacketArrivedHandler
if (handler != null)
{
handler(this, new DeckLinkAudioPacketArrivedEventArgs(audioPacket));
}
}
System.Runtime.InteropServices.Marshal.ReleaseComObject(videoFrame);
}
void IDeckLinkInputCallback.VideoInputFrameArrived(IDeckLinkVideoInputFrame videoFrame, IDeckLinkAudioInputPacket audioPacket)
{
if (videoFrame != null)
{
try
{
var frameFlags = videoFrame.GetFlags();
bool inputSignal = frameFlags.HasFlag(_BMDFrameFlags.bmdFrameHasNoInputSource);
if (inputSignal != validInputSignal)
{
validInputSignal = inputSignal;
InputSignalChanged?.Invoke(validInputSignal);
}
else
{
int width = videoFrame.GetWidth();
int height = videoFrame.GetHeight();
int stride = videoFrame.GetRowBytes();
var format = videoFrame.GetPixelFormat();
var bufferLength = stride * height;
videoFrame.GetBytes(out IntPtr pBuffer);
VideoDataArrived?.Invoke(pBuffer, bufferLength, 0);
//var f = File.Create(@"d:\testBMP2\" + DateTime.Now.ToString("HH_mm_ss_fff") + " " + width + "x" + height + "_" + format + ".raw");
//byte[] data = new byte[bufferLength];
//Marshal.Copy(pBuffer, data, 0, data.Length);
//f.Write(data, 0, data.Length);
//f.Close();
}
}
finally
{
Marshal.ReleaseComObject(videoFrame);
}
}
if (audioPacket != null)
{
try
{
long packetTime = 0;
//audioPacket.GetPacketTime(out packetTime, 30000);
int sampleSize = ((int)AudioSampleType / 8); //32bit
int samplesCount = audioPacket.GetSampleFrameCount();
int dataLength = sampleSize * AudioChannelsCount * samplesCount;
if (dataLength > 0)
{
audioPacket.GetBytes(out IntPtr pBuffer);
if (pBuffer != IntPtr.Zero)
{
byte[] data = new byte[dataLength];
Marshal.Copy(pBuffer, data, 0, data.Length);
AudioDataArrived?.Invoke(data, packetTime);
}
}
}
finally
{
Marshal.ReleaseComObject(audioPacket);
}
}
}
