// This will reenable routing if previous cleared.
// Should not be needed otherwise since FromSource changes will automatically update.
public void UpdateRouting()
{
// never started before?
if (_routingInstancePtr == IntPtr.Zero)
{
CreateRouting();
return;
}
// Sanity
if (_selectedSource == null || String.IsNullOrEmpty(_selectedSource.Name))
{
Clear();
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(_selectedSource.Name)
};
if (!NDIlib.routing_change(_routingInstancePtr, ref source_t))
{
// free the memory we allocated with StringToUtf8
Marshal.FreeHGlobal(source_t.p_ndi_name);
throw new InvalidOperationException("Failed to change routing.");
}
// free the memory we allocated with StringToUtf8
Marshal.FreeHGlobal(source_t.p_ndi_name);
}
// 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();
}
}
private void FindThreadProc()
{
// the size of an NDIlib.source_t, for pointer offsets
int SourceSizeInBytes = Marshal.SizeOf(typeof(NDIlib.source_t));
while (!_exitThread)
{
// Wait up to 500ms sources to change
if (NDIlib.find_wait_for_sources(_findInstancePtr, 500))
{
uint NumSources = 0;
IntPtr SourcesPtr = NDIlib.find_get_current_sources(_findInstancePtr, ref NumSources);
// convert each unmanaged ptr into a managed NDIlib.source_t
for (int i = 0; i < NumSources; i++)
{
// source ptr + (index * size of a source)
IntPtr p = IntPtr.Add(SourcesPtr, (i * SourceSizeInBytes));
// marshal it to a managed source and assign to our list
NDIlib.source_t src = (NDIlib.source_t)Marshal.PtrToStructure(p, typeof(NDIlib.source_t));
// .Net doesn't handle marshaling UTF-8 strings properly
String name = UTF.Utf8ToString(src.p_ndi_name);
// Add it to the list if not already in the list.
// We don't have to remove because NDI applications remember any sources seen during each run.
// They might be selected and come back when the connection is restored.
if (!_sourceList.Any(item => item.Name == name))
{
_sourceList.Enqueue(new Source(src));
}
}
}
}
}
// 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();
}
}
// Construct from NDIlib.source_t
public Source(NDIlib.source_t source_t)
{
Name = UTF.Utf8ToString(source_t.p_ndi_name);
}
// 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();
}
}
public Sender(String sourceName, bool clockVideo = true, bool clockAudio = false, String[] groups = null, String failoverName = null)
{
if (String.IsNullOrEmpty(sourceName))
{
throw new ArgumentException("sourceName can not be null or empty.", sourceName);
}
if (!NDIlib.initialize())
{
if (!NDIlib.is_supported_CPU())
{
throw new InvalidOperationException("CPU incompatible with NDI.");
}
else
{
throw new InvalidOperationException("Unable to initialize NDI.");
}
}
// .Net interop doesn't handle UTF-8 strings, so do it manually
// These must be freed later
IntPtr sourceNamePtr = UTF.StringToUtf8(sourceName);
IntPtr groupsNamePtr = IntPtr.Zero;
// make a flat list of groups if needed
if (groups != null)
{
StringBuilder flatGroups = new StringBuilder();
foreach (String group in groups)
{
flatGroups.Append(group);
if (group != groups.Last())
{
flatGroups.Append(',');
}
}
groupsNamePtr = UTF.StringToUtf8(flatGroups.ToString());
}
// Create an NDI source description
NDIlib.send_create_t createDesc = new NDIlib.send_create_t()
{
p_ndi_name = sourceNamePtr,
p_groups = groupsNamePtr,
clock_video = clockVideo,
clock_audio = clockAudio
};
// create the NDI send 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)
{
throw new InvalidOperationException("Failed to create send instance.");
}
if (!String.IsNullOrEmpty(failoverName))
{
// .Net interop doesn't handle UTF-8 strings, so do it manually
// These must be freed later
IntPtr failoverNamePtr = UTF.StringToUtf8(failoverName);
NDIlib.source_t failoverDesc = new NDIlib.source_t()
{
p_ndi_name = failoverNamePtr,
p_url_address = IntPtr.Zero
};
NDIlib.send_set_failover(_sendInstancePtr, ref failoverDesc);
// free the strings we allocated
Marshal.FreeHGlobal(failoverNamePtr);
}
}
// Construct from NDIlib.source_t
public Source(NDIlib.source_t source_t)
{
Name = UTF.Utf8ToString(source_t.p_ndi_name);
_ipAddress = UTF.Utf8ToString(source_t.p_ip_address);
}
private void FindThreadProc()
{
// the size of an NDIlib.source_t, for pointer offsets
int SourceSizeInBytes = Marshal.SizeOf(typeof(NDIlib.source_t));
while (!_exitThread)
{
// Wait up to 500ms sources to change
if (NDIlib.find_wait_for_sources(_findInstancePtr, 500))
{
uint NumSources = 0;
IntPtr SourcesPtr = NDIlib.find_get_current_sources(_findInstancePtr, ref NumSources);
// ここでソースリストを初期化しておく
//_sourceList.Clear();
// convert each unmanaged ptr into a managed NDIlib.source_t
for (int i = 0; i < NumSources; i++)
{
// source ptr + (index * size of a source)
IntPtr p = IntPtr.Add(SourcesPtr, (i * SourceSizeInBytes));
// marshal it to a managed source and assign to our list
NDIlib.source_t src = (NDIlib.source_t)Marshal.PtrToStructure(p, typeof(NDIlib.source_t));
// .Net doesn't handle marshaling UTF-8 strings properly
String name = UTF.Utf8ToString(src.p_ndi_name);
// Add it to the list if not already in the list.
// We don't have to remove because NDI applications remember any sources seen during each run.
// They might be selected and come back when the connection is restored.
if (!_sourceList.Any(item => item.Name == name))
{
// VLCが入っていなければ追加しない
if (name.Contains("VLC") == true)
{
_sourceList.Add(new Source(src));
}
}
}
// ソースリストから要らないソースを除いておく
//foreach (var item in _sourceList)
//{
// bool exclusion_flag = true;
// for (int i = 0; i < NumSources; i++)
// {
// IntPtr p = IntPtr.Add(SourcesPtr, (i * SourceSizeInBytes));
// NDIlib.source_t src = (NDIlib.source_t)Marshal.PtrToStructure(p, typeof(NDIlib.source_t));
// String name = UTF.Utf8ToString(src.p_ndi_name);
// if (item.Name == name)
// {
// exclusion_flag = false;
// break;
// }
// }
// if (exclusion_flag == true)
// {
// _sourceList.Remove(item);
// break;
// }
//}
}
}
}
