ofxNDI compile for Linux

[steeley]

Is it possible to use this addon with Linux?
Intel platform would be ok, but RaspberryPi would be really nice.

[nariakiiwatani]

I really don't know about Linux but it would be, I guess, I hope.
NDI itself supports Linux and AFAIK I haven't write any platform-specific code in this addon.

If everything goes fine, all you will need to do are

• download NDI SDK from NewTek
• place them into somewhere and|or add some lines to addon_config.mk

If you try, please share the processes and results and it will be much appreciated!

[steeley]

I tried to learn from this ofxNDI github.com/thomasgeissl/ofxNDI
as it says it works on linux. I did get it to build and link, but had to put the libndi.so.3
in /usr/local/lib and it did run. But it is not very useful.

With your ofxNDI I added this line to addon_config.mk. but maybe it wants ndilib.so.X?

linux:
    ADDON_DLLS_TO_COPY += windows-copy-to-bin/Processing.NDI.Lib.x86.dll

the ndi addon files build but the linker fails like this:

++ -o bin/example-videocaster  obj/linux64/Release/src/ofApp.o obj/linux64/Release/src/main.o  /home/steeley/oF/addons/obj/linux64/Release/ofxNDI/src/ofxNDIRecorder.o /home/steeley/oF/addons/obj/linux64/Release/ofxNDI/src/ofxNDIRecvStream.o /home/steeley/oF/addons/obj/linux64/Release/ofxNDI/src/ofxNDISender.o /home/steeley/oF/addons/obj/linux64/Release/ofxNDI/src/utils/ofxNDIVideoCaster.o /home/steeley/oF/addons/obj/linux64/Release/ofxNDI/src/utils/ofxNDIVideoGrabber.o /home/steeley/oF/addons/obj/linux64/Release/ofxNDI/src/ofxNDIPTZ.o /home/steeley/oF/addons/obj/linux64/Release/ofxNDI/src/ofxNDIFinder.o /home/steeley/oF/addons/obj/linux64/Release/ofxNDI/src/ofxNDIReceiver.o /home/steeley/oF/addons/obj/linux64/Release/ofxNDI/src/ofxNDIRouter.o /home/steeley/oF/addons/obj/linux64/Release/ofxNDI/src/ofxNDIFrame.o /home/steeley/oF/addons/obj/linux64/Release/ofxNDI/src/ofxNDISendStream.o  /home/steeley/oF/libs/openFrameworksCompiled/lib/linux64/libopenFrameworks.a   -Wl,-rpath=./libs:./bin/libs -Wl,--as-needed -Wl,--gc-sections -fuse-ld=gold -L/home/steeley/oF/libs/fmod/lib/linux64/ -lfmod /home/steeley/oF/libs/kiss/lib/linux64/libkiss.a /home/steeley/oF/libs/tess2/lib/linux64/libtess2.a   -lz -lgstapp-1.0 -lgstvideo-1.0 -lgstbase-1.0 -lgstreamer-1.0 -ludev -lfontconfig -lfreetype -lsndfile -lopenal -lcurl -lglfw -lrtaudio -lpulse-simple -lpulse -lasound -lGLEW -lGLU -lGL -lgtk-3 -lgdk-3 -lpangocairo-1.0 -lpango-1.0 -lharfbuzz -latk-1.0 -lcairo-gobject -lcairo -lgdk_pixbuf-2.0 -lgio-2.0 -lgobject-2.0 -lglib-2.0 -lmpg123 -lglut -lX11 -lXrandr -lXxf86vm -lXi -lXcursor -ldl -lpthread -lfreeimage -lboost_filesystem -lboost_system -lpugixml -luriparser -lXinerama
/home/steeley/oF/addons/obj/linux64/Release/ofxNDI/src/ofxNDISender.o:ofxNDISender.cpp:function ofxNDI::Send::Sender::setup(std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > const&, std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > const&, bool, bool): error: undefined reference to 'NDIlib_send_create'
/home/steeley/oF/addons/obj/linux64/Release/ofxNDI/src/ofxNDISender.o:ofxNDISender.cpp:function ofxNDI::Send::Sender::isConnected(long) const: error: undefined reference to 'NDIlib_send_get_no_connections'
/home/steeley/oF/addons/obj/linux64/Release/ofxNDI/src/ofxNDISender.o:ofxNDISender.cpp:function ofxNDI::Send::Sender::addConnectionMetadata(std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > const&, long) const: error: undefined reference to 'NDIlib_send_add_connection_metadata'
/home/steeley/oF/addons/obj/linux64/Release/ofxNDI/src/ofxNDISender.o:ofxNDISender.cpp:function ofxNDI::Send::Sender::setFailover(ofxNDI::Source const&) const: error: undefined reference to 'NDIlib_send_set_failover'
/home/steeley/oF/addons/obj/linux64/Release/ofxNDI/src/ofxNDISender.o:ofxNDISender.cpp:function ofxNDI::Send::Sender::getTally(bool*, bool*, long) const: error: undefined reference to 'NDIlib_send_get_tally'
/home/steeley/oF/addons/obj/linux64/Release/ofxNDI/src/ofxNDISender.o:ofxNDISender.cpp:function ofxNDI::Send::Sender::~Sender(): error: undefined reference to 'NDIlib_send_destroy'
/home/steeley/oF/addons/obj/linux64/Release/ofxNDI/src/ofxNDISender.o:ofxNDISender.cpp:function ofxNDI::Send::Sender::~Sender(): error: undefined reference to 'NDIlib_destroy'
/home/steeley/oF/addons/obj/linux64/Release/ofxNDI/src/ofxNDISender.o:ofxNDISender.cpp:function ofxNDI::Send::Sender::getSourceName() const: error: undefined reference to 'NDIlib_send_get_source_name'
/home/steeley/oF/addons/obj/linux64/Release/ofxNDI/src/ofxNDISender.o:ofxNDISender.cpp:function ofxNDI::Send::Sender::clearConnectionMetadata() const: error: undefined reference to 'NDIlib_send_clear_connection_metadata'
/home/steeley/oF/addons/obj/linux64/Release/ofxNDI/src/ofxNDIFrame.o:ofxNDIFrame.cpp:function ofxNDI::AudioFrame::encode(ofSoundBuffer&&, bool): error: undefined reference to 'NDIlib_util_audio_from_interleaved_32f_v2'
/home/steeley/oF/addons/obj/linux64/Release/ofxNDI/src/ofxNDIFrame.o:ofxNDIFrame.cpp:function ofxNDI::AudioFrame::decode(ofSoundBuffer&) const: error: undefined reference to 'NDIlib_util_audio_to_interleaved_32f_v2'
/home/steeley/oF/addons/obj/linux64/Release/ofxNDI/src/ofxNDISendStream.o:ofxNDISendStream.cpp:function ofxNDI::Recv::Blocking<ofxNDI::MetadataFrame, ofxNDI::Send::Sender>::captureFrame(ofxNDI::MetadataFrame&): error: undefined reference to 'NDIlib_send_capture'
/home/steeley/oF/addons/obj/linux64/Release/ofxNDI/src/ofxNDISendStream.o:ofxNDISendStream.cpp:function ofxNDI::Send::VideoStream::sendFrame(ofxNDI::VideoFrame const&) const: error: undefined reference to 'NDIlib_send_send_video_async_v2'
/home/steeley/oF/addons/obj/linux64/Release/ofxNDI/src/ofxNDISendStream.o:ofxNDISendStream.cpp:function ofxNDI::Send::VideoStream::sendFrame(ofxNDI::VideoFrame const&) const: error: undefined reference to 'NDIlib_send_send_video_v2'
/home/steeley/oF/addons/obj/linux64/Release/ofxNDI/src/ofxNDISendStream.o:ofxNDISendStream.cpp:function ofxNDI::Send::MetadataStream::sendFrame(ofxNDI::MetadataFrame const&) const: error: undefined reference to 'NDIlib_send_send_metadata'
/home/steeley/oF/addons/obj/linux64/Release/ofxNDI/src/ofxNDISendStream.o:ofxNDISendStream.cpp:function ofxNDI::Send::Stream<ofxNDI::AudioFrame, ofxNDI::Send::Sender>::sendFrame(ofxNDI::AudioFrame const&) const: error: undefined reference to 'NDIlib_send_send_audio_v3'
/home/steeley/oF/addons/obj/linux64/Release/ofxNDI/src/ofxNDISendStream.o:ofxNDISendStream.cpp:function ofxNDI::Recv::Blocking<ofxNDI::MetadataFrame, ofxNDI::Send::Sender>::freeFrame(ofxNDI::MetadataFrame&): error: undefined reference to 'NDIlib_send_free_metadata'
collect2: error: ld returned 1 exit status
make[1]: *** [/home/steeley/oF/libs/openFrameworksCompiled/project/makefileCommon/compile.project.mk:405: bin/example-videocaster] Error 1
make[1]: Leaving directory '/home/steeley/oF/addons/ofxNDI/example-videocaster'
make: *** [/home/steeley/oF/libs/openFrameworksCompiled/project/makefileCommon/compile.project.mk:129: Release] Error 2

[nariakiiwatani]

DLLs are for Windows so you need NDI SDK for Linux that you can download from NewTek website.
As you wrote it needs a kind of ndilib.so.X.

Once you put them in the right place as for example old ofxOpenCV does, PG would automatically add the libs to the project.

[steeley]

Thank you - I was getting confused with .so and .dll...

It works! - here is my process:

Copy: NDI SDK for Linux/lib/x86_64-linux-gnu folder to:

/addons/ofxNDI/libs/NDI/lib

copy this to addon_config.mk

linux64:
ADDON_LIBS =
ADDON_LIBS += libs/NDI/lib/x86_64-linux-gnu/libndi.so
ADDON_LIBS += libs/NDI/lib/x86_64-linux-gnu/libndi.so.4
ADDON_LIBS += libs/NDI/lib/x86_64-linux-gnu/libndi.so.4.6.2

[AnasGhrab]

Hi,

I have followed you process, using NDI 5, so I changed libndi.so.4 by libndi.so.5 and libndi.4.6.2 by libndi.5.1.1, but I get :

./example-sender: error while loading shared libraries: libndi.so.5: cannot open shared object file: No such file or directory

[crecord]

I was also struggle with this, I got it working with NDI 5 by

1. Using this branch
2. adding #include <functional> to ofxNDIFinder.h
3. adding the absolute paths to the .so files in dynamiclibraries in my QBS file for QT like so

of.dynamicLibraries: ["/home/antimodular/Documents/of_v0.11.2_linux64gcc6_release/addons/ofxNDI/libs/NDI/lib/x86_64-linux-gnu/libndi.so","/home/antimodular/Documents/of_v0.11.2_linux64gcc6_release/addons/ofxNDI/libs/NDI/lib/x86_64-linux-gnu/libndi.so.5","/home/antimodular/Documents/of_v0.11.2_linux64gcc6_release/addons/ofxNDI/libs/NDI/lib/x86_64-linux-gnu/libndi.so.5.1.1"] // dynamic libraries

Hope that helps!