// prepare to send texture
void CreateSendInstance()
{
if (!initialized)
{
return;
}
Monitor.Enter(sendInstanceLock);
{
// reset flag
instanceCreated = false;
// .Net interop doesn't handle UTF-8 strings, so do it manually
// These must be freed later
IntPtr sourceNamePtr = UTF.StringToUtf8(FInSourceName[0]);
IntPtr groupsNamePtr = IntPtr.Zero;
// Create an NDI source description using sourceNamePtr and it's clocked to the video.
NDIlib.send_create_t createDesc = new NDIlib.send_create_t()
{
p_ndi_name = sourceNamePtr,
p_groups = groupsNamePtr,
clock_video = true,
clock_audio = false
};
// destroy if exists
if (sendInstancePtr != IntPtr.Zero)
{
NDIlib.send_destroy(sendInstancePtr);
sendInstancePtr = IntPtr.Zero;
}
// We create the NDI sender instance
sendInstancePtr = NDIlib.send_create(ref createDesc);
// free the strings we allocated
Marshal.FreeHGlobal(sourceNamePtr);
Marshal.FreeHGlobal(groupsNamePtr);
// did it succeed?
if (sendInstancePtr == IntPtr.Zero)
{
FLogger.Log(LogType.Error, "Failed to create send instance");
return;
}
else
{
FLogger.Log(LogType.Message, "Successed to create send instance");
instanceCreated = true;
}
// unlock
Monitor.Exit(sendInstanceLock);
}
}
// 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();
}
}
public static string MD5_UTF(string value, UTF utf)
{
MD5 md5 = new MD5CryptoServiceProvider();
//md5.ComputeHash(ASCIIEncoding.UTF32.GetBytes(value));
switch (utf)
{
case UTF.Unicode:
md5.ComputeHash(ASCIIEncoding.Unicode.GetBytes(value));
break;
case UTF.UTF8: // ASCII
md5.ComputeHash(ASCIIEncoding.UTF8.GetBytes(value));
break;
case UTF.UTF32:
md5.ComputeHash(ASCIIEncoding.UTF32.GetBytes(value));
break;
default:
md5.ComputeHash(ASCIIEncoding.UTF8.GetBytes(value));
break;
}
byte[] result = md5.Hash;
StringBuilder sb = new StringBuilder();
for (int i = 0; i < result.Length; i++)
{
sb.Append(result[i].ToString("X2"));
}
string sn = sb.ToString();
string serial = sn.Substring(0, 5) + "-" + sn.Substring(5, 5) + "-" + sn.Substring(10, 5) + "-" + sn.Substring(15, 5) + "-" + sn.Substring(20, 5);
return(serial.ToString());
}
// 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();
}
}
// connect to an NDI source in our Dictionary by name
private void Connect(Source source)
{
if (System.ComponentModel.DesignerProperties.GetIsInDesignMode(this))
{
return;
}
// 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) && String.IsNullOrEmpty(source.IpAddress)))
{
return;
}
// a source_t to describe the source to connect to.
NDIlib.source_t source_t = new NDIlib.source_t()
{
p_ip_address = UTF.StringToUtf8(source.IpAddress),
p_ndi_name = UTF.StringToUtf8(source.Name)
};
// make a description of the receiver we want
NDIlib.recv_create_t recvDescription = new NDIlib.recv_create_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_v2(ref recvDescription);
// free the memory we allocated with StringToUtf8
Marshal.FreeHGlobal(source_t.p_ip_address);
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);
// start up a thread to receive on
_receiveThread = new Thread(ReceiveThreadProc)
{
IsBackground = true, Name = "NdiExampleReceiveThread"
};
_receiveThread.Start();
}
}
private void InitializeNdi()
{
if (System.ComponentModel.DesignerProperties.GetIsInDesignMode(this))
{
return;
}
Monitor.Enter(sendInstanceLock);
{
// we need a name
if (String.IsNullOrEmpty(NdiName))
{
return;
}
// re-initialize?
if (sendInstancePtr != IntPtr.Zero)
{
NDIlib.send_destroy(sendInstancePtr);
sendInstancePtr = IntPtr.Zero;
}
// .Net interop doesn't handle UTF-8 strings, so do it manually
// These must be freed later
IntPtr sourceNamePtr = UTF.StringToUtf8(NdiName);
IntPtr groupsNamePtr = IntPtr.Zero;
// build a comma separated list of groups?
if (NdiGroups.Count > 0)
{
StringBuilder sb = new StringBuilder();
for (int i = 0; i < NdiGroups.Count(); i++)
{
sb.Append(NdiGroups[i]);
if (i < NdiGroups.Count - 1)
{
sb.Append(',');
}
}
groupsNamePtr = UTF.StringToUtf8(sb.ToString());
}
// Create an NDI source description using sourceNamePtr and it's clocked to the video.
NDIlib.send_create_t createDesc = new NDIlib.send_create_t()
{
p_ndi_name = sourceNamePtr,
p_groups = groupsNamePtr,
clock_video = NdiClockToVideo,
clock_audio = false
};
// We create the NDI finder instance
sendInstancePtr = NDIlib.send_create(ref createDesc);
// free the strings we allocated
Marshal.FreeHGlobal(sourceNamePtr);
Marshal.FreeHGlobal(groupsNamePtr);
// unlock
Monitor.Exit(sendInstanceLock);
}
}
public void OnImportsSatisfied()
{
frameNumber = 0;
// .Net interop doesn't handle UTF-8 strings, so do it manually
// These must be freed later
sourceNamePtr = UTF.StringToUtf8("VVVV.NDI.SendTest");
groupsNamePtr = IntPtr.Zero;
// Not required, but "correct". (see the SDK documentation)
if (!NDIlib.initialize())
{
// Cannot run NDI. Most likely because the CPU is not sufficient (see SDK documentation).
// you can check this directly with a call to NDIlib_is_supported_CPU()
FLogger.Log(LogType.Error, "Cannot run NDI");
return;
}
else
{
FLogger.Log(LogType.Message, "NDI initialized");
}
// Create an NDI source description using sourceNamePtr and it's clocked to the video.
NDIlib.send_create_t createDesc = new NDIlib.send_create_t()
{
p_ndi_name = sourceNamePtr,
p_groups = groupsNamePtr,
clock_video = true,
clock_audio = false
};
// We create the NDI finder instance
sendInstancePtr = NDIlib.send_create(ref createDesc);
// free the strings we allocated
Marshal.FreeHGlobal(sourceNamePtr);
Marshal.FreeHGlobal(groupsNamePtr);
// did it succeed?
if (sendInstancePtr == IntPtr.Zero)
{
FLogger.Log(LogType.Error, "Failed to create send instance");
//Console.WriteLine("Failed to create send instance");
return;
}
else
{
FLogger.Log(LogType.Message, "Successed to create send instance");
}
// define our bitmap properties
int xres = 1920;
int yres = 1080;
int stride = (xres * 32 /*BGRA bpp*/ + 7) / 8;
int bufferSize = yres * stride;
// allocate some memory for a video buffer
bufferPtr = Marshal.AllocHGlobal((int)bufferSize);
// We are going to create a 1920x1080 progressive frame at 29.97Hz.
videoFrame = new NDIlib.video_frame_v2_t()
{
// Resolution
xres = xres,
yres = yres,
// Use BGRA video
FourCC = NDIlib.FourCC_type_e.FourCC_type_BGRA,
// The frame-eate
frame_rate_N = 120000, //30000,
frame_rate_D = 1000, //1001,
// The aspect ratio (16:9)
picture_aspect_ratio = (16.0f / 9.0f),
// This is a progressive frame
frame_format_type = NDIlib.frame_format_type_e.frame_format_type_progressive,
// Timecode.
timecode = NDIlib.send_timecode_synthesize,
// The video memory used for this frame
p_data = bufferPtr,
// The line to line stride of this image
line_stride_in_bytes = stride,
// no metadata
p_metadata = IntPtr.Zero,
// only valid on received frames
timestamp = 0//NDIlib.recv_timestamp_undefined
};
// get a compatible bitmap and graphics context
bmp = new Bitmap((int)xres, (int)yres, (int)stride, System.Drawing.Imaging.PixelFormat.Format32bppPArgb, bufferPtr);
graphics = Graphics.FromImage(bmp);
graphics.SmoothingMode = SmoothingMode.AntiAlias;
// We'll use these later inside the loop
textFormat = new StringFormat();
textFormat.Alignment = StringAlignment.Center;
textFormat.LineAlignment = StringAlignment.Center;
fontFamily = new FontFamily("Arial");
outlinePen = new Pen(Color.Black, 2.0f);
thinOutlinePen = new Pen(Color.Black, 1.0f);
}
