void CreateNdiFind()
{
var opt = new NDIlib.find_create_t {
show_local_sources = true
};
_ndiFind = NDIlib.find_create_v2(ref opt);
}
void Start()
{
var findOptions = new NDIlib.find_create_t {
show_local_sources = true
};
_findInstance = NDIlib.find_create_v2(ref findOptions);
}
public Finder(bool showLocalSources = false, String[] groups = null, String[] extraIps = null)
{
if (!NDIlib.initialize())
{
if (!NDIlib.is_supported_CPU())
{
throw new InvalidOperationException("CPU incompatible with NDI.");
}
else
{
throw new InvalidOperationException("Unable to initialize NDI.");
}
}
//BindingOperations.EnableCollectionSynchronization(_sourceList, _sourceLock);
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());
}
// This is also optional.
// The list of additional IP addresses that exist that we should query for
// sources on. For instance, if you want to find the sources on a remote machine
// that is not on your local sub-net then you can put a comma seperated list of
// those IP addresses here and those sources will be available locally even though
// they are not mDNS discoverable. An example might be "12.0.0.8,13.0.12.8".
// When none is specified (IntPtr.Zero) the registry is used.
// Create a UTF-8 buffer from our string
// Must use Marshal.FreeHGlobal() after use!
// IntPtr extraIpsPtr = NDI.Common.StringToUtf8("12.0.0.8,13.0.12.8")
IntPtr extraIpsPtr = IntPtr.Zero;
// make a flat list of ip addresses as comma separated strings
if (extraIps != null)
{
StringBuilder flatIps = new StringBuilder();
foreach (String ipStr in extraIps)
{
flatIps.Append(ipStr);
if (ipStr != groups.Last())
{
flatIps.Append(',');
}
}
extraIpsPtr = UTF.StringToUtf8(flatIps.ToString());
}
// how we want our find to operate
NDIlib.find_create_t findDesc = new NDIlib.find_create_t()
{
p_groups = groupsNamePtr,
show_local_sources = showLocalSources,
p_extra_ips = extraIpsPtr
};
// create our find instance
_findInstancePtr = NDIlib.find_create_v2(ref findDesc);
// free our UTF-8 buffer if we created one
if (groupsNamePtr != IntPtr.Zero)
{
Marshal.FreeHGlobal(groupsNamePtr);
}
if (extraIpsPtr != IntPtr.Zero)
{
Marshal.FreeHGlobal(extraIpsPtr);
}
// start up a thread to update on
_findThread = new Thread(FindThreadProc)
{
IsBackground = true, Name = "NdiFindThread"
};
_findThread.Start();
}
