cmake error about libfreenect2pclgrabber

[giacomodabisias]

Hi,
you did not install libfreenect2 in /usr/local so either go into the build folder of libfreenect2 and execute sudo make install or if you have installed it in a separate prefix go into the grabber build folder and execute ccmake .. and set the freenect2 variables

[hanshammel1337]

thank you! following the libfreenect2 standard installation, this should do the work in CMakeLists.txt from libfreenect2pclgrabber:
set(FREENECT2_INCLUDE_DIRS "/home/$ENV{USER}/freenect2/include")
set(FREENECT2_LIBRARY "/home/$ENV{USER}/freenect2/lib/libfreenect2.so")

nevertheless, now it works with CPU processor but not with Processor freenectprocessor = OPENCL; i changed OFF to ON in CMakeLists.txt fpr WITH_OPENCL.
have you tested it with OPENCL? libfreenect2 with iai_kinect run good with openCL on my machine, but the grabber does not :(

---

ben@ben-laptop:~/libfreenect2pclgrabber/build$ ./Kinect2Grabber
Syntax is: ./Kinect2Grabber [-processor 0|1|2] -processor options 0,1,2,3 correspond to CPU, OPENCL, OPENGL, CUDA respectively
Press 's' to store a cloud
Press 'x' to store the calibrations.
[Info] [Freenect2Impl] enumerating devices...
[Info] [Freenect2Impl] 12 usb devices connected
[Info] [Freenect2Impl] found valid Kinect v2 @2:3 with serial 006870123456
[Info] [Freenect2Impl] found 1 devices
creating OpenCL processor
[Error] [OpenCLDepthPacketProcessorImpl] cl::Platform::get(&platforms): -1001
[Error] [OpenCLAllocator] b->buffer = cl::Buffer(context, CL_MEM_WRITE_ONLY | CL_MEM_ALLOC_HOST_PTR, size, NULL, &err): -34
[Error] [OpenCLAllocator] b->buffer = cl::Buffer(context, CL_MEM_WRITE_ONLY | CL_MEM_ALLOC_HOST_PTR, size, NULL, &err): -34
[Error] [OpenCLAllocator] b->buffer = cl::Buffer(context, CL_MEM_READ_ONLY | CL_MEM_ALLOC_HOST_PTR, size, NULL, &err): -34
[Info] [Freenect2DeviceImpl] opening...
[Info] [Freenect2DeviceImpl] transfer pool sizes rgb: 20_16384 ir: 60_8*33792
[Info] [Freenect2DeviceImpl] opened
[Info] [Freenect2DeviceImpl] starting...
[Error] [OpenCLDepthPacketProcessorImpl] OpenCLDepthPacketProcessor is not initialized!
[Error] [OpenCLDepthPacketProcessorImpl] OpenCLDepthPacketProcessor is not initialized!
[Error] [OpenCLDepthPacketProcessorImpl] OpenCLDepthPacketProcessor is not initialized!
[Info] [Freenect2DeviceImpl] submitting rgb transfers...
[Info] [Freenect2DeviceImpl] submitting depth transfers...
[Error] [DepthPacketStreamParser] Packet buffer is NULL
[Error] [DepthPacketStreamParser] Packet buffer is NULL
[Error] [DepthPacketStreamParser] Packet buffer is NULL

[giacomodabisias]

Hi,
Did you try to execute the grabber passing 0, 1, 2 and so on to see if the other processors work?

[hanshammel1337]

Yes i did.
0 = CPU, works fine, but slow.
1 = should be opencl, but falls back to creating Cpu processor
2 = should be opengl, but falls back to creating Cpu processor (opengl not working on my machine, also not working with Protonect, opencl is fine with Protonect)

and when i hardcode opencl as processor in test.cpp as written in my previous post, the output is like posted there.

[giacomodabisias]

Did you also test CUDA?

Il 09 Ago 2016 10:03, "Benjamin" [email protected] ha scritto:

Yes i did.
0 = CPU, works fine, but slow.
1 = should be opencl, but falls back to creating Cpu processor
2 = should be opengl, but falls back to creating Cpu processor (opengl
not working on my machine)

and when i hardcode opencl as processor in test.cpp as written in my
previous post, the output is like posted there.

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[giacomodabisias]

Probably Protonen uses the opencl lib inside of the libfreenect2 folder. Did you install opencv on you system? I think the grabber can't find the opencl lib at runtime

[hanshammel1337]

I didn't test CUDA because my system has amd graphic card.
Yes, opencv is installed in version 2.4.8

[giacomodabisias]

Sorry I meant opencl...autocorrect