unsafe void TryCreateNdiRecv()
{
if (_ndiFind == IntPtr.Zero)
{
return;
}
// NDI source enumeration
var count = (System.UInt32) 0;
var sources = NDIlib.find_get_current_sources(_ndiFind, ref count);
if (count == 0)
{
return;
}
// First source entry
var source =
UnsafeUtility.ReadArrayElement <NDIlib.source_t>((void *)sources, 0);
var name = Marshal.PtrToStringAnsi(source.p_ndi_name);
Debug.Log($"Sender found: {name}");
// Recv instantiation
var opt = new NDIlib.recv_create_v3_t {
bandwidth = NDIlib.recv_bandwidth_e.recv_bandwidth_highest,
color_format = NDIlib.recv_color_format_e.recv_color_format_fastest,
source_to_connect_to = source
};
_ndiRecv = NDIlib.recv_create_v3(ref opt);
}
// connect to an NDI source in our Dictionary by name
public void Connect(Source source)
{
// just in case we're already connected
// _delegateUpdateDynImage = UpdateDynImage;
Disconnect();
// Sanity
if (source == null || (String.IsNullOrEmpty(source.Name)))
{
return;
}
// a source_t to describe the source to connect to.
NDIlib.source_t source_t = new NDIlib.source_t()
{
p_ndi_name = UTF.StringToUtf8(source.Name)
};
// make a description of the receiver we want
NDIlib.recv_create_v3_t recvDescription = new NDIlib.recv_create_v3_t()
{
// the source we selected
source_to_connect_to = source_t,
// we want BGRA frames for this example
color_format = NDIlib.recv_color_format_e.recv_color_format_BGRX_BGRA,
// we want full quality - for small previews or limited bandwidth, choose lowest
bandwidth = NDIlib.recv_bandwidth_e.recv_bandwidth_highest,
// let NDIlib deinterlace for us if needed
allow_video_fields = false
};
// create a new instance connected to this source
_recvInstancePtr = NDIlib.recv_create_v3(ref recvDescription);
// free the memory we allocated with StringToUtf8
Marshal.FreeHGlobal(source_t.p_ndi_name);
// did it work?
System.Diagnostics.Debug.Assert(_recvInstancePtr != IntPtr.Zero, "Failed to create NDI receive instance.");
if (_recvInstancePtr != IntPtr.Zero)
{
// We are now going to mark this source as being on program output for tally purposes (but not on preview)
SetTallyIndicators(true, false);
_source = source;
// start up a thread to receive on
_receiveThread = new Thread(ReceiveThreadProc)
{
IsBackground = true, Name = "NdiReceiveThread"
};
_receiveThread.Start();
}
}
// connect to an NDI source in our Dictionary by name
public void Connect(NDIlib.recv_color_format_e colorFormat)
{
// just in case we're already connected
Disconnect();
// a source_t to describe the source to connect to.
NDIlib.source_t source_t = new NDIlib.source_t()
{
p_ndi_name = UTF.StringToUtf8(_sourceName)
};
// make a description of the receiver we want
NDIlib.recv_create_v3_t recvDescription = new NDIlib.recv_create_v3_t()
{
// the source we selected
source_to_connect_to = source_t,
// we want BGRA frames for this example
color_format = colorFormat,
// we want full quality - for small previews or limited bandwidth, choose lowest
bandwidth = _videoEnabled ? NDIlib.recv_bandwidth_e.recv_bandwidth_highest : NDIlib.recv_bandwidth_e.recv_bandwidth_audio_only,
// let NDIlib deinterlace for us if needed
allow_video_fields = false,
// The name of the NDI receiver to create. This is a NULL terminated UTF8 string and should be
// the name of receive channel that you have. This is in many ways symettric with the name of
// senders, so this might be "Channel 1" on your system.
p_ndi_recv_name = UTF.StringToUtf8(_receiverName)
};
// create a new instance connected to this source
_recvInstancePtr = NDIlib.recv_create_v3(ref recvDescription);
// free the memory we allocated with StringToUtf8
Marshal.FreeHGlobal(source_t.p_ndi_name);
Marshal.FreeHGlobal(recvDescription.p_ndi_recv_name);
// did it work?
System.Diagnostics.Debug.Assert(_recvInstancePtr != IntPtr.Zero, "Failed to create NDI receive instance.");
if (_recvInstancePtr != IntPtr.Zero)
{
// We are now going to mark this source as being on program output for tally purposes (but not on preview)
SetTallyIndicators(true, false);
// start up a thread to receive on
_receiveThread = new Thread(ReceiveThreadProc)
{
IsBackground = true, Name = "NdiExampleReceiveThread"
};
_receiveThread.Start();
}
}
unsafe void Update()
{
if (_findInstance != IntPtr.Zero)
{
UInt32 count = 0;
var sources = NDIlib.find_get_current_sources(_findInstance, ref count);
if (count == 0)
{
return;
}
var source = UnsafeUtility.ReadArrayElement <NDIlib.source_t>((void *)sources, 0);
Debug.Log("Sender found: " + Marshal.PtrToStringAnsi(source.p_ndi_name));
var recvOptions = new NDIlib.recv_create_v3_t {
source_to_connect_to = source,
color_format = NDIlib.recv_color_format_e.recv_color_format_fastest,
bandwidth = NDIlib.recv_bandwidth_e.recv_bandwidth_highest
};
_recvInstance = NDIlib.recv_create_v3(ref recvOptions);
NDIlib.find_destroy(_findInstance);
_findInstance = IntPtr.Zero;
}
if (_recvInstance != IntPtr.Zero)
{
var frame = new NDIlib.video_frame_v2_t();
var type = NDIlib.recv_capture_v2(_recvInstance, ref frame, IntPtr.Zero, IntPtr.Zero, 0);
if (type != NDIlib.frame_type_e.frame_type_video)
{
return;
}
UpdateTexture(frame.xres, frame.yres, frame.p_data);
NDIlib.recv_free_video_v2(_recvInstance, ref frame);
}
}
// connect to an NDI source in our Dictionary by name
void Connect(Source source)
{
if (FInReceiverName.SliceCount == 0 || String.IsNullOrEmpty(FInReceiverName[0]))
{
FLogger.Log(LogType.Error, "receiverName can not be null or empty.");
}
// just in case we're already connected
Disconnect();
// Sanity
if (source == null || String.IsNullOrEmpty(source.Name))
{
return;
}
// a source_t to describe the source to connect to.
NDIlib.source_t source_t = new NDIlib.source_t()
{
p_ndi_name = UTF.StringToUtf8(source.Name)
};
// make a description of the receiver we want
NDIlib.recv_create_v3_t recvDescription = new NDIlib.recv_create_v3_t()
{
// the source we selected
source_to_connect_to = source_t,
// we want BGRA frames for this example
//color_format = NDIlib.recv_color_format_e.recv_color_format_BGRX_BGRA,
color_format = (NDIlib.recv_color_format_e)Enum.ToObject(typeof(NDIlib.recv_color_format_e), (int)FInColorFormat[0]),
// we want full quality - for small previews or limited bandwidth, choose lowest
//bandwidth = NDIlib.recv_bandwidth_e.recv_bandwidth_highest,
bandwidth = (NDIlib.recv_bandwidth_e)Enum.ToObject(typeof(NDIlib.recv_bandwidth_e), (int)FInBandwidth[0]),
// let NDIlib deinterlace for us if needed
allow_video_fields = false,
// The name of the NDI receiver to create. This is a NULL terminated UTF8 string and should be
// the name of receive channel that you have. This is in many ways symettric with the name of
// senders, so this might be "Channel 1" on your system.
p_ndi_recv_name = UTF.StringToUtf8(FInReceiverName[0])
};
// create a new instance connected to this source
_recvInstancePtr = NDIlib.recv_create_v3(ref recvDescription);
// free the memory we allocated with StringToUtf8
Marshal.FreeHGlobal(source_t.p_ndi_name);
Marshal.FreeHGlobal(recvDescription.p_ndi_recv_name);
// did it work?
//System.Diagnostics.Debug.Assert(_recvInstancePtr != IntPtr.Zero, "Failed to create NDI receive instance.");
if (_recvInstancePtr == IntPtr.Zero)
{
FLogger.Log(LogType.Warning, "Failed to create NDI receive instance.");
}
if (_recvInstancePtr != IntPtr.Zero)
{
// We are now going to mark this source as being on program output for tally purposes (but not on preview)
SetTallyIndicators(true, false);
// start up a thread to receive on
_receiveThread = new Thread(ReceiveThreadProc)
{
IsBackground = true, Name = "NDIReceiveThread"
};
_receiveThread.Start();
}
}
// connect to an NDI source in our Dictionary by name
private void Connect(Source source)
{
if (System.ComponentModel.DesignerProperties.GetIsInDesignMode(this))
{
return;
}
if (String.IsNullOrEmpty(ReceiverName))
{
throw new ArgumentException("sourceName can not be null or empty.", ReceiverName);
}
using (var volOut = new WasapiOut(NAudio.CoreAudioApi.AudioClientShareMode.Shared, 50))
_volume = volOut.Volume;
// just in case we're already connected
Disconnect();
// before we are connected, we need to set up our image
// it's bad practice to do this in the constructor
if (Child == null)
{
Child = VideoSurface;
}
// Sanity
if (source == null || String.IsNullOrEmpty(source.Name))
{
return;
}
// a source_t to describe the source to connect to.
NDIlib.source_t source_t = new NDIlib.source_t()
{
p_ndi_name = UTF.StringToUtf8(source.Name)
};
// make a description of the receiver we want
NDIlib.recv_create_v3_t recvDescription = new NDIlib.recv_create_v3_t()
{
// the source we selected
source_to_connect_to = source_t,
// we want BGRA frames for this example
color_format = NDIlib.recv_color_format_e.recv_color_format_BGRX_BGRA,
// we want full quality - for small previews or limited bandwidth, choose lowest
bandwidth = _lowBandwidth ? NDIlib.recv_bandwidth_e.recv_bandwidth_lowest : NDIlib.recv_bandwidth_e.recv_bandwidth_highest,
// let NDIlib deinterlace for us if needed
allow_video_fields = false,
// The name of the NDI receiver to create. This is a NULL terminated UTF8 string and should be
// the name of receive channel that you have. This is in many ways symettric with the name of
// senders, so this might be "Channel 1" on your system.
p_ndi_recv_name = UTF.StringToUtf8(ReceiverName)
};
// create a new instance connected to this source
_recvInstancePtr = NDIlib.recv_create_v3(ref recvDescription);
// free the memory we allocated with StringToUtf8
Marshal.FreeHGlobal(source_t.p_ndi_name);
Marshal.FreeHGlobal(recvDescription.p_ndi_recv_name);
// did it work?
System.Diagnostics.Debug.Assert(_recvInstancePtr != IntPtr.Zero, "Failed to create NDI receive instance.");
if (_recvInstancePtr != IntPtr.Zero)
{
// We are now going to mark this source as being on program output for tally purposes (but not on preview)
SetTallyIndicators(true, false);
// start up a thread to receive on
_receiveThread = new Thread(ReceiveThreadProc)
{
IsBackground = true, Name = "NdiExampleReceiveThread"
};
_receiveThread.Start();
}
}