I just updated my Openframeworks to the latest found on Github Master branch and found out this error when creating a simple project with ProjectGenerator and adding ofxSyphon :

.../addons/ofxSyphon/libs/Syphon/lib/osx/Syphon.framework: No such file or directory

Syphon.Framework appears as missing on the file tree ?
Not sure which commit from OF has broken this as I was working with Sept.2022 before this update.
Any workaround ?

I've tried to compile in OFw 0.8 and got errors in this lines

    mTex.texData.glType = GL_RGBA;
    mTex.texData.pixelType = GL_UNSIGNED_BYTE;

Thanks

Hello, not really sure if this is an issue.

I'm grabbing perfectly the Syphon stream in other apps in the same computer, but I would like to do so with multiple computers using this library. Do I need to make some special bridge to connect this between 2 computers (in the same network) using an ethernet cable/router?

Thanks

I just tried adding oxfSyphon to an openFrameworks 0.8.1 project via the Project Generator. After following the instructions, to get it to compile I also had to add Syphon.framework to the "Link Binary with Libraries" build phase as well as dragging SyphonNameboundClient.m into the project manually.

Pretty simple, but might throw off people not comfortable with XCode.

Thanks for the great addon!

Hi - I'm coming up with the following two issues when attempting to run the examples in oF 0.8.4 with the latest commit of syphon (c739fea). I've included screenshots of the error and my project setup.

I added syphon to my build settings search paths.

Also, a slight correction to your readme - I believe it should say:

addons/ofxSyphon/libs/Syphon/lib/osx

instead of

addons/ofxSyphon/lib/Syphon/lib/osx

Opening this issue here to notify a transition to ARC in the next OF Release
Some more info here
openframeworks/openFrameworks#6848
openframeworks/openFrameworks#6848 (comment)
Thanks

hello,

Thanks for the addon.
I can't get it to work even after following precisely the instructions in the readme file.

I then tried to compile the examples but still have problems.
after setting the project i still have an issue compiling the example :

..libs/openFrameworks/types/ofTypes.h:9:10: 'tr1/memory' file not found

Using oF 0.8.4 on macosx 10.9.2

i'm trying to compile the basic example with 0.8.3 using the project generator

i'm copying the three source code files over to my new app folder:
main.cpp
ofApp.cpp
ofApp.h

i'm manually adding syphon.framework to "Link Binary with Libraries" as indicated in the previous issue posted to this board:

but i'm still getting compilations errors:

FYI - glTypeInternal has changed to glInternalFormat. I think there were a couple of other changes. I haven't had any time to fork it and update changes - sorry.

This was very useful to me to get this set-up, maybe reference it?

http://forum.openframeworks.cc/t/an-easier-ofxsyphon/9017/23

I've tried ofxSyphon beta 2 on OX6.8 and OF008 (on xcode 4.2)
The compiler used is GCC 4.2.
It seems that there is some syntax problem with the auto type
The compiler complains in the file ofxSyphonServerDirectory.mm at the function below

bool ofxSyphonServerDirectory::serverExists(ofxSyphonServerDescription _server){
for(auto& s: serverList){
if(s == _server)
return true;
}

return false;

}

It says that the loop variable s must not be declared as auto.

It's a c++11 syntax and of008 is not yet compatible with it

Hi,

I am trying to share a (pointcloud) texture of ofFloatImage/ofShortImage. But no matter what I try it looks I am loosing data at the receiving end (as if the RGB are only of 8bit per channel).

Is it possible to share a texture that is not of type GL_RGB/GL_RGBA but of type GL_RGB16/GL_RGB32F after all?

I'm writing just to inform the ARC enabled release is now the default go to OF.
In the case you want to move of_head to master
feel free to close here.

When I put ofEnableNormalizedTexCoords at the start of ofApp::setup in example-Basic, the client no longer renders the texture from the server correctly.

The same happens I do

mClient.bind();
mClient.getTexture().draw(50,50);
mClient.unbind();

instead.

Because of complications with other addons I need to install this one manually to my xcode project and I am having trouble.

I am using OF 9.8 on OSX 10.12.6 and I successfully compiled the example when I use the project generator. I tried to add ofxSyphon to my project by replicating the settings in the successful example project.

I did the following:

1. Create the same file structure.
   

2. Link the framework
   

3. Add ../../../addons/ofxSyphon/libs/Syphon/lib/osxto framework search paths

4. Add the following to header search paths.

../../../addons/ofxSyphon/libs
../../../addons/ofxSyphon/libs/Syphon
../../../addons/ofxSyphon/libs/Syphon/lib
../../../addons/ofxSyphon/libs/Syphon/lib/osx
../../../addons/ofxSyphon/libs/Syphon/src
../../../addons/ofxSyphon/src

These were all the custom setting I could find in the successful xcode project created by the project generated, but my new project won't compile. I get a bunch of Undefined symbols for architecture x86_64 errors.

Are there additional step I should take to manually add ofxSyphon?

As oF and Xcode change over time, it is extra maintenance work to manually update the Xcode projects. I'd suggest considering removing all project files which users can generate themselves using the oF ProjectGenerator.

I have done this many years ago with my addons and it hasn't been a major issue since I also include information on how to generate them, ex. https://github.com/danomatika/ofxLua#running-the-example-projects

For this addon, I think the only thing you would need to leave for each example is addons.make and src with maybe a bin/data/.gitkeep thrown in for completeness if/when someone uses the example as a template.

it would be great to be able to use a vector or a map of ofxSyphonClient or servers

vector<ofxSyphonClient> syphonClientVec;

Cheers!

I had an issue with the texture not filling the syphon recorder screen size. It comes down to ofDisableArbTex() being called in setup. Turned out that the shader that needed ofDisableArbTex still worked if I called ofEnableArbTex() inside the draw function.

ofEnableArbTex();
tex.loadScreenData(0,0,ofGetWidth(),ofGetHeight());
//both work
mainOutputSyphonServer.publishScreen();
individualTextureSyphonServer.publishTexture(&tex);
ofDisableArbTex();

Worth mentioning I figure.

Hey,
I'v been trying to compile ofxSyphon with Qt creator instead of Xcode and finally succeeded. :)

• Generate a qt-creator project with the Project Generator frontend app.
• Then set your ofApp.qbs file to match these lines:

ofApp {
    // dirty workaround for Qt Creator not parsing .mm files from the addons folder
    files: [
        // main.cpp, ofApp.h+cpp, etc.
        '../../../addons/ofxSyphon/src/ofxSyphonClient.mm',
        '../../../addons/ofxSyphon/src/ofxSyphonServer.mm',
        '../../../addons/ofxSyphon/src/ofxSyphonServerDirectory.mm',
        '../../../addons/ofxSyphon/libs/Syphon/src/SyphonNameboundClient.m'
    ]
    of.includePaths: [
        '../../../addons/ofxSyphon/libs',
        '../../../addons/ofxSyphon/libs/Syphon',
        '../../../addons/ofxSyphon/libs/Syphon/lib',
        '../../../addons/ofxSyphon/libs/Syphon/lib/osx',
        '../../../addons/ofxSyphon/libs/Syphon/src',
        '../../../addons/ofxSyphon/src',
    ]
    // include macosx framework
    of.frameworks: ['Syphon']
}

• Adding the .framework library search path doesn't work so you have to copy the Syphon.framework to /Library/Frameworks in order to link against it.
• Then it should compile correctly but won't launch on other computers.
  To fix this, either copy /addons/ofxSyphon/libs/Syphon/lib/Syphon.Framework to /bin/ofApp/Contents/Frameworks/Syphon.Framework or copy Syphon.framework to /Library/Frameworks on the computer you'd like to run your ofApp on.

So that's about how far I got, the next step would be using the Syphon.Framework from the addons folder rather then from /Library/Frameworks. Any ideas ?
With these lines I couldn't get it to work while it should. (even using absolute paths)
of.linkerFlags: ['-F../../../addons/ofxSyphon/libs/Syphon/lib/osx']
of.cxxFlags: ['-F../../../addons/ofxSyphon/libs/Syphon/lib/osx']

Including the Syphon.Framework copy step in the Qt build process would be nice too.

(Still looking for better solutions so no PR yet, leaving issue open until then.)

Currently, to dynamically stop and (re)start a server or client, you need to use a pointer and delete/create. We could add a clear() function, similar to most oF classes, which clears the internal Obj-C instances.

I'd be up for making a PR if there is interest. What do you think @dimitre @ofTheo ?

ofxSyphon source isn't being compiled for Makefile builds

Running make in example-Basic gives (shortened):

HOST_OS=Darwin
Compiling OF library for Release
HOST_OS=Darwin
HOST_OS=Darwin
HOST_OS=Darwin
Done!


Compiling example-Basic for Release
HOST_OS=Darwin
cat: obj/osx/Release/.compiler_flags: No such file or directory
Compiling /Users/tom/Development/OpenFrameworks/of_v0.9.3_osx_release/addons/ofxSyphon/example-Basic/src/main.cpp
...
Compiling /Users/tom/Development/OpenFrameworks/of_v0.9.3_osx_release/addons/ofxSyphon/example-Basic/src/ofApp.cpp
...
Linking bin/example-Basic for osx
...
Undefined symbols for architecture x86_64:
  "ofxSyphonClient::set(std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> >, std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> >)", referenced from:
      ofApp::setup() in ofApp.o
  "ofxSyphonClient::draw(float, float)", referenced from:
      ofApp::draw() in ofApp.o
  "ofxSyphonClient::setup()", referenced from:
      ofApp::setup() in ofApp.o
  "ofxSyphonClient::ofxSyphonClient()", referenced from:
      _main in main.o
  "ofxSyphonClient::~ofxSyphonClient()", referenced from:
      ofApp::~ofApp() in ofApp.o
      ofApp::~ofApp() in ofApp.o
      non-virtual thunk to ofApp::~ofApp() in ofApp.o
      non-virtual thunk to ofApp::~ofApp() in ofApp.o
  "ofxSyphonServer::publishScreen()", referenced from:
      ofApp::draw() in ofApp.o
  "ofxSyphonServer::publishTexture(ofTexture*)", referenced from:
      ofApp::draw() in ofApp.o
  "ofxSyphonServer::setName(std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> >)", referenced from:
      ofApp::setup() in ofApp.o
  "ofxSyphonServer::ofxSyphonServer()", referenced from:
      _main in main.o
  "ofxSyphonServer::~ofxSyphonServer()", referenced from:
      _main in main.o
      ofApp::~ofApp() in ofApp.o
      ofApp::~ofApp() in ofApp.o
      non-virtual thunk to ofApp::~ofApp() in ofApp.o
      non-virtual thunk to ofApp::~ofApp() in ofApp.o
  "_glutDragEventFunc", referenced from:
      ofAppGlutWindow::setup(ofGLWindowSettings const&) in libopenFrameworks.a(ofAppGlutWindow.o)
ld: symbol(s) not found for architecture x86_64
clang: error: linker command failed with exit code 1 (use -v to see invocation)
make[1]: *** [bin/example-Basic] Error 1
make: *** [Release] Error 2

any way to detect number of server and their name?

I took a while to discover, but getTexture actually is not allocated if I don't use draw command.
I'm now using a draw to circumvent this.

syphonIn.draw(0,0,0,0);
ofTexture & tex = ui->pBool["syphon"] ? syphonIn.getTexture() : webcam.getTexture();

Thanks

Hi Astellato. I've been getting major headaches with this, I managed to get ofxSyphon basic example to compile against 008 but when I add

fbo.begin();
ofClear(0,0,0,0);
fbo.allocate(ofGetWidth(),ofGetHeight(),GL_RGBA);
fbo.end();

in my test app setup after declaring an ofFbo in my .h I get the following error.

I have replicated this same error on 3 mac computers now all using oF008, 2 using Xcode 5 and 1 using Xcode4. Weirdly, if I just allocate the fbo in my setup code, leaving out the fbo.begin() and fbo.end() then it compiles fine....?

Any ideas on what is going on here?

Thanks,
Josh

Hi! I've been using syphon in my xcode project for a while. I've just swapped to openframework nightly in order to use some specific feature, but now I can't get syphon working anymore.

I've read this thread, and have checked that I've got Syphone.framework in Link Library with Binaries (see the following screenshot)

Has anyone got it working with the latest OF nightly? Am I missing certain configurations?

Has anyone here used ofxSyphon successfully?

I'm trying to use syphon to make a recording of my performance software on a 2014 MBP with i7 & GT750M.

My software uses openFrameworks and ofxSyphon. The output is 1080p and I'm using the standard way of publishing the stream from the examples - ie mainOutputSyphonServer.publishScreen() on the main thread.

When I open syphon recorder, I can see the output, but the frames play out of sequence - movement jumps back and forth, I would estimate by at least a second - as if there's a buffer of 25 frames and they are being displayed in the wrong order.

Has anyone seen anything like this with ofxSyphon? Or has anyone used syphon successfully to record a 1080p stream?

I am trying to wrap ofxSyphon texture to cvMat, that is my process:

    tex = client.getTexture();
    tex.readToPixels(pix);
    syphonMat = toCv(pix);

but there are the error while I run this line: tex.readToPixels(pix);
[ error ] ofPixels: format doesn't support channels
[ error ] ofGLUtils: ofGetGLFormatFromPixelFormat(): unknown OF pixel format-1, returning GL_LUMINANCE

Anyone have the ideas?

Hello,

I’m trying to convert an ofTexture—extracted from a ofxSyphonClient—to an ofImage as follows:

ofTexture sTexture(syphonClient.getTexture());
sTexture.draw(0, 0, ofGetWidth()/2, ofGetHeight());
ofPixels pixels;
sTexture.readToPixels(pixels);
ofImage sFrame;
sFrame.setFromPixels(pixels);
sFrame.draw(ofGetWidth()/2, 0, ofGetWidth()/2, ofGetHeight());

The problem is that sFrame is not being currently drawn (line 7). My sTexture, on the other hand, is drawn as expected (line 2). No errors are shown in the console.

The same code works fine if the sTexture is loaded from somewhere else (say a ofVideoPlayer) instead of a Syphon client.

Is this a bug or am I missing something?

Hi! I'm seeing this behavior with regularity when quitting & relaunching my app. I'm using OF 0.9.0 and the OpenFrameworks-0.9 branch of this repo. Looks like mSyphon is pointing at something...that doesn't exist anymore?

Nothing crazy with Syphon in my app, just an ofxSyphonServer syphon; declaration in my header file and a syphon.publishScreen(); in draw() Any thoughts? Thanks!

I'm not sure if this is maybe a known limitation of Syphon itself, but ofxSyphonServerDirectory doesn't seem to list servers that existed before startup.

To reproduce:

1. Start the Simple Server example app from Syphon
2. Start example-ServerDirectory
3. The screen remains blank even after pressing a key
4. Close and reopen the Simple Server app
5. The server appears in the (still open) example-ServerDirectory

I think most users on osx compile by gcc 4.2 which does not know range based for loops. Would it be possible for you to not use them in order to make your otherwise brilliant software available to as many as possible?

This function returns this error

Non-void function does not return a value in all control paths

When I try and compile the example or use the addon in an existing project within xcode 4.6 my machine hard crashes to that grey screen and needs to be rebooted

Is there a potential race condition/gotcha if I add a method like

ofTexture SyphonClient::getTexture(){
return mTex;
}

?

It seems like it could have an issue with the various GL stuff, but I don't know - I was able to implement it and it worked, but I'm not sure if it would eventually break and I just got lucky.

When you move the example folder to its proper place "example" becomes an unhelpful name. A better name would be SyphonExample, which matches the naming scheme of other addons.

Hello,

Syphon is really a must have for openFrameworks.
Unfortunately, this addon is quite complicated to use for XCode noobs.

I tried and keep trying but can't get it to work with oF0.8.4

Is there a chance this addons will work properly with projectGenerator one day ?

thanks a lot by the way

Seems that when I don't use GLUT (can't use glut when creating multiple windows in OF) the syphon stream breaks down and renders a strange result. See this forum post for images.

Is it possible through the addon to change the path where files get saved by the syphon recorder app?

Is it possible to change the file name after calling individualTextureSyphonServer.setName("Texture Output"); in setup?
I would like it to contain custom info for each recording.

Ideally one would also be able to change the resolution settings from OF for the recorded videos.

My app starts and stops multiple recordings automatically using this solution:
https://forum.openframeworks.cc/t/ofxsyphon-start-and-stop-recording/24187

I know this might be not possible but i thought i'd ask.
thanks.

Hi, I'm finding ofxSyphonServer is producing just a single diagonal line of pixels from the output - this is using both publishScreen() and publishTexture(&fbo.getTexture())

Screengrab attached

The line of pixels that is there though does seem to be realtime!