Problem to compile VisionWorks example

Autonomous Machines Jetson & Embedded Systems Jetson TX2
1

Hello,

I want to modify the code of the nvgstcamera_capture example which is provided with VisionWorks-1.6.

First, I made a copy of the nvgstcamera_capture folder to another directory. Then I used make to run the Makefile provided by the example to build the executable. However I get the following error:

nvidia@tegra-ubuntu:~/Documents/CUDA Examples/nvgstcamera_capture$ make
g++ -I/usr/local/cuda-9.0/include -I/home/nvidia/code/build-visionworks/install/include -I…/…/nvxio/include -I…/…/nvxio/src/ -I…/…/nvxio/src/NVX/ -I…/…/3rdparty/opengl -I…/…/3rdparty/glfw3/include -I…/…/3rdparty/freetype/include -I…/…/3rdparty/eigen -O3 -DNDEBUG -std=c++0x -DCUDA_API_PER_THREAD_DEFAULT_STREAM -DUSE_GUI=1 -DUSE_GLFW=1 -DUSE_GLES=1 -DUSE_GSTREAMER=1 -DUSE_NVGSTCAMERA=1 -DUSE_GSTREAMER_OMX=1 -o obj/release/main_nvgstcamera_capture.o -c main_nvgstcamera_capture.cpp
main_nvgstcamera_capture.cpp:37:34: fatal error: OVX/FrameSourceOVX.hpp: No such file or directory
compilation terminated.
Makefile:140: recipe for target ‘obj/release/main_nvgstcamera_capture.o’ failed
make: *** [obj/release/main_nvgstcamera_capture.o] Error 1

I also tried the build a cmake file as is suggested in another thread. My CMakeLists.txt is:

[i]cmake_minimum_required(VERSION 2.8)
project(nvfstcamera_capture)

set(CMAKE_CXX_STANDARD 11)
find_package(VisionWorks REQUIRED)
find_package(VisionWorks-NVXIO REQUIRED)

MESSAGE( STATUS "VisionWorks Lib: " ${VisionWorks_LIBRARIES})
MESSAGE( STATUS "NVXIO Lib: " ${VisionWorks-NVXIO_LIBRARIES})

add_executable(app main_nvgstcamera_capture.cpp)
target_link_libraries(app ${VisionWorks_LIBRARIES} ${VisionWorks-NVXIO_LIBRARIES})[/i]

But I got the following error:

[i]nvidia@tegra-ubuntu:~/Documents/CUDA Examples/nvgstcamera_capture/build$ cmake …
– The C compiler identification is GNU 5.4.0
– The CXX compiler identification is GNU 5.4.0
– Check for working C compiler: /usr/bin/cc
– Check for working C compiler: /usr/bin/cc – works
– Detecting C compiler ABI info
– Detecting C compiler ABI info - done
– Detecting C compile features
– Detecting C compile features - done
– Check for working CXX compiler: /usr/bin/c++
– Check for working CXX compiler: /usr/bin/c++ – works
– Detecting CXX compiler ABI info
– Detecting CXX compiler ABI info - done
– Detecting CXX compile features
– Detecting CXX compile features - done
CMake Error at CMakeLists.txt:6 (find_package):
By not providing “FindVisionWorks-NVXIO.cmake” in CMAKE_MODULE_PATH this
project has asked CMake to find a package configuration file provided by
“VisionWorks-NVXIO”, but CMake did not find one.

Could not find a package configuration file provided by “VisionWorks-NVXIO”
with any of the following names:

VisionWorks-NVXIOConfig.cmake
visionworks-nvxio-config.cmake

Add the installation prefix of “VisionWorks-NVXIO” to CMAKE_PREFIX_PATH or
set “VisionWorks-NVXIO_DIR” to a directory containing one of the above
files. If “VisionWorks-NVXIO” provides a separate development package or
SDK, be sure it has been installed.

– Configuring incomplete, errors occurred!
See also “/home/nvidia/Documents/CUDA Examples/nvgstcamera_capture/build/CMakeFiles/CMakeOutput.log”.[/i]

Evidently, the library NVXIO has some problem to be included in both cases. Can someone explain me how to include the library correctly, please? I am compiling directly on my Jetson TX2 platform which has the last JetPack installed.

Thank you.

2

Hi,

NVXIO was split into NVX and OVX from version 1.6.
You can find a Makefile example for VisionWorks-1.6 on this topic:
[url]https://devtalk.nvidia.com/default/topic/1016273/jetson-tx2/visionworks-linking-problem/[/url]

Thanks.

3

Thank you for your answer.

Can you provide an example of how to include the flags of the thread in a Cmake file, please? I have tried to include the flags but I have the same previous error.

Regards,

4

Hi,

Here is the CMakeLists.txt example for topic 1016273:
https://devtalk.nvidia.com/default/topic/1016273/jetson-tx2/visionworks-linking-problem/post/5179211/#5179211

cmake_minimum_required (VERSION 2.8)

project(VisionWorks)

set (CMAKE_CXX_STANDARD 11)
find_package(VisionWorks REQUIRED)

include_directories("/usr/share/visionworks/sources/nvxio/include")
link_directories("/usr/local/cuda/targets/aarch64-linux/lib" "/usr/share/visionworks/sources/libs/aarch64/linux/release")

set(CMAKE_CXX_FLAGS ${CMAKE_CXX_FLAGS} "-lvisionworks -lovx -lnvx -lpthread")
set(CMAKE_CXX_FLAGS ${CMAKE_CXX_FLAGE} "-lgstpbutils-1.0 -lgstapp-1.0 -lgstbase-1.0 -lgstreamer-1.0 -lgobject-2.0 -lglib-2.0")
set(CMAKE_CXX_FLAGS ${CMAKE_CXX_FLAGE} "/usr/share/visionworks/sources/3rdparty/glfw3/libs/libglfw3.a")
set(CMAKE_CXX_FLAGS ${CMAKE_CXX_FLAGE} "-lXrandr -lXi -lXxf86vm -lX11 -lGL")

add_executable(app topic_1037512.cpp)

target_link_libraries(app ${VisionWorks_LIBRARIES})

Thanks.

5

Hi AastaLLL,

I’ve got the same problem as ercalleortiz and your CMakeLists solved it.
But now, I’ve got another problem, here is the result of ‘make’ :

Linking CXX executable vision
CMakeFiles/vision.dir/vision.cpp.o: In function `main':
vision.cpp:(.text+0x68): undefined reference to `nvxio::Application::get()'
vision.cpp:(.text+0x164): undefined reference to `nvxio::OptionHandler::string(std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> >*)'
collect2: error: ld returned 1 exit status
CMakeFiles/vision.dir/build.make:95: recipe for target 'vision' failed
make[2]: *** [vision] Error 1
CMakeFiles/Makefile2:215: recipe for target 'CMakeFiles/vision.dir/all' failed
make[1]: *** [CMakeFiles/vision.dir/all] Error 2
make[1]: *** Waiting for unfinished jobs....

I found other topic which solved this problem ( https://devtalk.nvidia.com/default/topic/965838/jetson-tx1/unable-to-install-package-libvisionworks-nvxi-jetpack-l4t-2-1-1-32-bit-via-jetpack-2-3-/post/4997975/#4997975 ) but it seems like libvisionworks-nvxio doesn’t exist anymore.

I use a Jetson TX2 L4T r27.1 on Jetpack 3.0 with VisionWorks 1.6.
All the VisionWorks samples are working.

Do you have an idea of how to solve this problem ?

Thanks.

6

Alright, I managed to make it work but only VisionWorks-1.6-Sample directory with a copy of a sample Makefile.

7

I have the same issue.
Unfortunately the solution still use the sample dir from VisionWorks 1.6.0

8

Hello,

Does anybody know if there is a way to use CMakelists.txt to compile one of the Visionworks (1.6) Samples ?

Thank you.

9

Hi,

Thanks for your patience.

We are still checking this issue internally. Will update to you later.
Thanks.

10

Has there been an update on this? Struggling to use Visionworks w/ cmake in order to include it in ROS nodes.

Thanks.

11

Hi,

We are still checking this issue.
For more progress, please check this topic for the update:
https://devtalk.nvidia.com/default/topic/1064190

Thanks.