hi andres,


the following example is the most basic setup which shoud work in any case.

1. //---------------------------------------------
2. //
3. // author: thomas diewald
4. // date:   29.07.2011
5. //
6. //---------------------------------------------
7. // note: sometimes, the kinects depth/video wont start at the very first run,
8. //       in this case, just re-start the sketch!
9. import dLibs.freenect.toolbox.*;
10. import dLibs.freenect.constants.*;
11. import dLibs.freenect.interfaces.*;
12. import dLibs.freenect.*;
13. //-------------------------------------------------------------------
14. int device_count = 0;
15. int kinectFrame_size_x = VIDEO_FORMAT._RGB_.getWidth();   // width of kinect frame
16. int kinectFrame_size_y = VIDEO_FORMAT._RGB_.getHeight();  // height of kinect frame
17. Kinect kinect_[];                     // main kinect-object
18. KinectFrameVideo kinect_video_[];     // video frame
19. KinectFrameDepth kinect_depth_[];     // depth frame
20. //-------------------------------------------------------------------
21. PImage video_frame_[], depth_frame_[];  // images
22. void setup(){
23.   device_count = Kinect.count();
24.  
25.   KinectLogger.log(KinectLogger.TYPE.INFO, null, "available devices: "+device_count );
26.   size(kinectFrame_size_x*device_count, kinectFrame_size_y*2);
27.  
28.   kinect_       = new Kinect[device_count];
29.   kinect_video_ = new KinectFrameVideo[device_count];
30.   kinect_depth_ = new KinectFrameDepth[device_count];
31.   video_frame_  = new PImage[2];
32.   depth_frame_  = new PImage[2];
33.  
34.   for(int i = 0; i < device_count; i++){
35.     kinect_[i] = new Kinect(i);                                       // create the main device-instance
36.     kinect_video_[i] = new KinectFrameVideo(VIDEO_FORMAT._RGB_);      // create a video instance, RGB
37.     kinect_depth_[i] = new KinectFrameDepth(DEPTH_FORMAT._11BIT_);    // create a depth instance
38.    
39.     kinect_video_[i].connect(kinect_[i]);  //connect the created video instance to the main kinect
40.     kinect_depth_[i].connect(kinect_[i]);  //connect the created depth instance to the main kinect
41.    
42.     kinect_video_[i].setFrameRate(30);  // default is set to 60, which will be changed in the next update
43.     kinect_depth_[i].setFrameRate(30);  // default is set to 60, which will be changed in the next update
44.    
45.     video_frame_[i] = createImage(VIDEO_FORMAT._RGB_  .getWidth(), VIDEO_FORMAT._RGB_     .getHeight(), RGB);
46.     depth_frame_[i] = createImage(DEPTH_FORMAT._11BIT_.getWidth(), DEPTH_FORMAT._11BIT_   .getHeight(), RGB);
47.   }
48. }
49. //-------------------------------------------------------------------
50. void draw(){
51.   for(int i = 0; i < device_count; i++){
52.     assignPixels( video_frame_[i], kinect_video_[i]);
53.     assignPixels( depth_frame_[i], kinect_depth_[i]);
54.     image(video_frame_[i], kinectFrame_size_x*i, 0);
55.     image(depth_frame_[i], kinectFrame_size_x*i, kinectFrame_size_y);
56.   }
57.   println(frameRate);
58. }
59. //-------------------------------------------------------------------
60. void assignPixels(PImage img, Pixelable kinect_dev){
61.   img.loadPixels();
62.     img.pixels = kinect_dev.getPixels();  // assign pixels of the kinect device to the image
63.   img.updatePixels();
64. }
65. //-------------------------------------------------------------------
66. // this is maybe not necessary, but is the proper way to close everything
67. void stop(){
68.   Kinect.shutDown();
69.   super.stop();
70. }

i forgot to ask...

are you working on a notebook?
because i made the experience that there are sometimes problem with the usb ports.
on every workstation i testet this, it worked great, but on notebooks, there was often the problem you mentioned ( no idea how to fix this).

Hello Thomas, thanks a lot for your quick answer. 

right now, i tested the multiples-device setup on winXP (SP3, 32bit), but as far as i can recall it also worked on win7 (64bit).

maybe you get more info if you put this at the beginning of setup.

KinectLogger.TYPE.INFO   .active(true);
KinectLogger.TYPE.DEBUG  .active(true);
KinectLogger.TYPE.WARNING.active(true);
KinectLogger.TYPE.ERROR  .active(true);

otherwise i really dont know what the problem here could be, i actually dont think that its an win7-32bit problem.

This is the full error log:

Could not claim interface on camera: -99

... im pretty sure, its an USB-problem. the same thing happens on my notebook.


the error message appears here (freenect -source):
https://github.com/OpenKinect/libfreenect/blob/master/src/usb_libusb10.c


but i dont know how to fix this. sorry.

we found a solution: connect one of the two kinects to an USB port on the back, and the other to a port on the front.

That would seem to confirm that it was a hub issue... 

Exactly. I also tested using a PCI usb card with two ports in addition to the built-in ports in the computer. When I plugged the two kinects to the ports in the card, I would have issues getting both working properly. Everything works fine when I connected one kinect to the card port, and the other to a built-in port.

Hi,

Thanks for this very cool library !

But I still can't get two kinects working :

2 devices but only one active at a time, and get the same errors as reported by the other users
"ERROR in libusbemu -- source file 'libusbemu.cpp' at line 257 -- libusb0-dll:err [set_configuration] could not set config 1
..
Could not claim interface on camera: -99"

Each kinect are working well when using independantly.

I tried this with 3 different windows 7 - 64 bits machines :  2 laptops and 1 pretty recent desktop.
I'm sure the 2 kinects are plugged on different USB Host Controller.
Tried many combinations, always get the same issue.

I also get the same error when using multiple kinect with the ofxTheo addon in openframeworks.

Does anybody have a clue, or still getting these errors  ?


Here is the log message I get from processing with the multiple kinect example
(just add in the setup() :
KinectLogger.TYPE.INFO   .active(true);
KinectLogger.TYPE.DEBUG  .active(true);
KinectLogger.TYPE.WARNING.active(true);
KinectLogger.TYPE.ERROR  .active(true);
)


=========================================================
  library: dLibs.freenect.*
  version: 02.20
  author : (c) thomas diewald

  openkinect-version(freenect.dll): "OpenKinect-libfreenect-v0.1.1-0-gdbfd4ce"
  tested on winXP-x86/x64, win7-x86/x64
=========================================================

#_KINECT_INFO____#
    message:    os.name              = Windows 7
    message:    sun.arch.data.model  = 32 bit
    message:    java.runtime.version = 1.6.0_24-b07
    message:    java.home            = D:\docdavid\processing-1.5.1\java

#_KINECT_INFO____#
    message:    LIBRARY LOADED
    message:    path = "C:\Users\Onde De Choc\Documents\Processing\libraries\dLibs_freenect\library/windows32/freenect.dll"

#_KINECT_INFO____#
    message:    available devices: 2

#_KINECT_INFO____#
    on device:  0
    message:    created new device!

#_KINECT_INFO____#
    on device:  0
    message:    STARTED Thread: processeEvents(...)

#_KINECT_ERROR___#
    location:   dLibs.freenect.KinectCore.openDevice(Unknown Source)
    on device:  1
    message:    FAILED: open new device
    message:    native call returned: -1

#_KINECT_INFO____#
    on device:  1
    message:    STARTED Thread: processeEvents(...)

#_KINECT_WARNING_#
    location:   dLibs.freenect.KinectCore.setVideoFormat(Unknown Source)
    on device:  1
    message:    FAILED: set video format
    message:    no device opened

#_KINECT_WARNING_#
    location:   dLibs.freenect.KinectCore.setVideoBuffer(Unknown Source)
    on device:  1
    message:    FAILED: set video buffer
    message:    no device opened

#_KINECT_WARNING_#
    location:   dLibs.freenect.KinectCore.startVideo(Unknown Source)
    on device:  1
    message:    FAILED: start video
    message:    no device opened

#_KINECT_WARNING_#
    location:   dLibs.freenect.KinectCore.setDepthFormat(Unknown Source)
    on device:  1
    message:    FAILED: set depth format
    message:    no device opened

#_KINECT_WARNING_#
    location:   dLibs.freenect.KinectCore.setDepthBuffer(Unknown Source)
    on device:  1
    message:    FAILED: set depth buffer
    message:    no device opened

#_KINECT_WARNING_#
    location:   dLibs.freenect.KinectCore.startDepth(Unknown Source)
    on device:  1
    message:    FAILED: start depth
    message:    no device opened
9.10355
14.370106
18.800552
...
...

60.014477
60.25417
ERROR in libusbemu -- source file 'libusbemu.cpp' at line 257 -- libusb0-dll:err [set_configuration] could not set config 1: win error: Un périphérique attaché au système ne fonctionne pas correctement.


Could not claim interface on camera: -99


------------------------------------------------

Thanks