用C++和CUDA读取GPU上的视频
用C++和CUDA读取GPU上的视频
提问于 2021-01-15 17:02:22
大家好，谢谢你们的回答。
首先，正如@zkoza和@talonmies所指出的那样，Jetson与ARCH 7.2兼容，而不是与Jetson的案例中使用的ARCH 5.3兼容。
To @Yunus =>我的代码中的fname只有myvideo.MOV，因为我在电影的同一剧目中执行我的代码，我还尝试使用从internet上的示例中获取的.mp4文件导致同样的错误。是的，正如您指出的，我的NVCUVID不在cmake命令之后，正如您在我最初的文章中看到的，与CUDA相对应的行是
NVIDIA CUDA: YES (ver 10.2, CUFFT CUBLAS FAST_MATH)而不是
NVIDIA CUDA: YES (ver 10.2, CUFFT NVCUVID CUBLAS FAST_MATH)我不知道缺少哪些依赖项，但我在这里也看到NVCUVID被废弃了：https://docs.nvidia.com/cuda/video-decoder/index.html
cuda第6步的例子很好:)我目前正在用cuda 10.2制作opencv 4.3.0，如果这解决了我的问题，我将更新我的答案。
编辑: --不幸的是，使用Ubuntu18.04上的openCV 4.3.0和Cuda10.2，问题完全相同，但是我想补充一下，我使用以下命令进行编译：
g++ video_reader.cpp -o vr.exe `pkg-config --cflags --libs opencv4`因为g++本身给了我这个错误：
video_reader.cpp:3:10: fatal error: opencv2/opencv_modules.hpp: No such file or directory
#include "opencv2/opencv_modules.hpp"
^~~~~~~~~~~~~~~~~~~~~~~~~~~~
compilation terminated.所以，也许我的编译命令就是问题所在？
端编辑
To @user2986898和@einpoklum =>，我运行了cv::getBuildInformation()和其他两个函数:设备数量和兼容设备数量。设备和兼容设备的数量为1台，如预期的那样，生成信息如下：
General configuration for OpenCV 4.5.1 =====================================
Version control: unknown
Extra modules:
Location (extra): /home/dronemaitre/Documents/opencv_cpp/opencv_contrib/modules
Version control (extra): unknown
Platform:
Timestamp: 2021-01-18T10:12:44Z
Host: Linux 4.9.140-tegra aarch64
CMake: 3.10.2
CMake generator: Unix Makefiles
CMake build tool: /usr/bin/make
Configuration: RELEASE
CPU/HW features:
Baseline: NEON FP16
C/C++:
Built as dynamic libs?: YES
C++ standard: 11
C++ Compiler: /usr/bin/c++ (ver 7.5.0)
C++ flags (Release): -fsigned-char -ffast-math -W -Wall -Werror=return-type -Werror=non-virtual-dtor -Werror=address -Werror=sequence-point -Wformat -Werror=format-security -Wmissing-declarations -Wundef -Winit-self -Wpointer-arith -Wshadow -Wsign-promo -Wuninitialized -Wsuggest-override -Wno-delete-non-virtual-dtor -Wno-comment -Wimplicit-fallthrough=3 -Wno-strict-overflow -fdiagnostics-show-option -pthread -fomit-frame-pointer -ffunction-sections -fdata-sections -fvisibility=hidden -fvisibility-inlines-hidden -O3 -DNDEBUG -DNDEBUG
C++ flags (Debug): -fsigned-char -ffast-math -W -Wall -Werror=return-type -Werror=non-virtual-dtor -Werror=address -Werror=sequence-point -Wformat -Werror=format-security -Wmissing-declarations -Wundef -Winit-self -Wpointer-arith -Wshadow -Wsign-promo -Wuninitialized -Wsuggest-override -Wno-delete-non-virtual-dtor -Wno-comment -Wimplicit-fallthrough=3 -Wno-strict-overflow -fdiagnostics-show-option -pthread -fomit-frame-pointer -ffunction-sections -fdata-sections -fvisibility=hidden -fvisibility-inlines-hidden -g -O0 -DDEBUG -D_DEBUG
C Compiler: /usr/bin/cc
C flags (Release): -fsigned-char -ffast-math -W -Wall -Werror=return-type -Werror=address -Werror=sequence-point -Wformat -Werror=format-security -Wmissing-declarations -Wmissing-prototypes -Wstrict-prototypes -Wundef -Winit-self -Wpointer-arith -Wshadow -Wuninitialized -Wno-comment -Wimplicit-fallthrough=3 -Wno-strict-overflow -fdiagnostics-show-option -pthread -fomit-frame-pointer -ffunction-sections -fdata-sections -fvisibility=hidden -O3 -DNDEBUG -DNDEBUG
C flags (Debug): -fsigned-char -ffast-math -W -Wall -Werror=return-type -Werror=address -Werror=sequence-point -Wformat -Werror=format-security -Wmissing-declarations -Wmissing-prototypes -Wstrict-prototypes -Wundef -Winit-self -Wpointer-arith -Wshadow -Wuninitialized -Wno-comment -Wimplicit-fallthrough=3 -Wno-strict-overflow -fdiagnostics-show-option -pthread -fomit-frame-pointer -ffunction-sections -fdata-sections -fvisibility=hidden -g -O0 -DDEBUG -D_DEBUG
Linker flags (Release): -Wl,--gc-sections -Wl,--as-needed
Linker flags (Debug): -Wl,--gc-sections -Wl,--as-needed
ccache: NO
Precompiled headers: NO
Extra dependencies: m pthread /usr/lib/aarch64-linux-gnu/libGL.so /usr/lib/aarch64-linux-gnu/libGLU.so cudart_static dl rt nppc nppial nppicc nppicom nppidei nppif nppig nppim nppist nppisu nppitc npps cublas cudnn cufft -L/usr/local/cuda-10.2/lib64 -L/usr/lib/aarch64-linux-gnu
3rdparty dependencies:
OpenCV modules:
To be built: alphamat aruco bgsegm bioinspired calib3d ccalib core cudaarithm cudabgsegm cudacodec cudafeatures2d cudafilters cudaimgproc cudalegacy cudaobjdetect cudaoptflow cudastereo cudawarping cudev cvv datasets dnn dnn_objdetect dnn_superres dpm face features2d flann freetype fuzzy gapi hdf hfs highgui img_hash imgcodecs imgproc intensity_transform line_descriptor mcc ml objdetect optflow phase_unwrapping photo plot python2 python3 quality rapid reg rgbd saliency sfm shape stereo stitching structured_light superres surface_matching text tracking ts video videoio videostab xfeatures2d ximgproc xobjdetect xphoto
Disabled: world
Disabled by dependency: -
Unavailable: cnn_3dobj java julia matlab ovis viz
Applications: tests perf_tests apps
Documentation: NO
Non-free algorithms: NO
GUI:
QT: YES (ver 5.9.5)
QT OpenGL support: YES (Qt5::OpenGL 5.9.5)
GTK+: NO
OpenGL support: YES (/usr/lib/aarch64-linux-gnu/libGL.so /usr/lib/aarch64-linux-gnu/libGLU.so)
VTK support: NO
Media I/O:
ZLib: /usr/lib/aarch64-linux-gnu/libz.so (ver 1.2.11)
JPEG: /usr/lib/aarch64-linux-gnu/libjpeg.so (ver 80)
WEBP: build (ver encoder: 0x020f)
PNG: /usr/lib/aarch64-linux-gnu/libpng.so (ver 1.6.34)
TIFF: /usr/lib/aarch64-linux-gnu/libtiff.so (ver 42 / 4.0.9)
JPEG 2000: build (ver 2.3.1)
OpenEXR: build (ver 2.3.0)
HDR: YES
SUNRASTER: YES
PXM: YES
PFM: YES
Video I/O:
DC1394: YES (2.2.5)
FFMPEG: YES
avcodec: YES (57.107.100)
avformat: YES (57.83.100)
avutil: YES (55.78.100)
swscale: YES (4.8.100)
avresample: YES (3.7.0)
GStreamer: YES (1.14.5)
v4l/v4l2: YES (linux/videodev2.h)
Parallel framework: TBB (ver 2017.0 interface 9107)
Trace: YES (with Intel ITT)
Other third-party libraries:
Lapack: NO
Eigen: YES (ver 3.3.4)
Custom HAL: YES (carotene (ver 0.0.1))
Protobuf: build (3.5.1)
NVIDIA CUDA: YES (ver 10.2, CUFFT CUBLAS FAST_MATH)
NVIDIA GPU arch: 72
NVIDIA PTX archs:
cuDNN: YES (ver 8.0.0)
OpenCL: YES (no extra features)
Include path: /home/dronemaitre/Documents/opencv_cpp/opencv/3rdparty/include/opencl/1.2
Link libraries: Dynamic load
Python 2:
Interpreter: /usr/bin/python2.7 (ver 2.7.17)
Libraries: /usr/lib/aarch64-linux-gnu/libpython2.7.so (ver 2.7.17)
numpy: /usr/lib/python2.7/dist-packages/numpy/core/include (ver 1.13.3)
install path: lib/python2.7/dist-packages/cv2/python-2.7
Python 3:
Interpreter: /usr/bin/python3 (ver 3.6.9)
Libraries: /usr/lib/aarch64-linux-gnu/libpython3.6m.so (ver 3.6.9)
numpy: /usr/lib/python3/dist-packages/numpy/core/include (ver 1.13.3)
install path: lib/python3.6/dist-packages/cv2/python-3.6
Python (for build): /usr/bin/python2.7
Java:
ant: NO
JNI: NO
Java wrappers: NO
Java tests: NO
Install to: /usr/local
-----------------------------------------------------------------Cuda似乎是由OpenCV找到的，但是在这里我们可以再次看到，NVCUVID并没有被添加，所以我将-D NVCUVID=ON放在这里，正如您所说的，它可能会被忽略，因为它与我的配置不兼容。编辑:运行在构建文件夹中的 ccmake命令为我提供了以下输出：
ANT_EXECUTABLE ANT_EXECUTABLE-NOTFOUND
Atlas_BLAS_LIBRARY /usr/lib/aarch64-linux-gnu/libatlas.so
Atlas_CBLAS_INCLUDE_DIR /usr/include/aarch64-linux-gnu
Atlas_CBLAS_LIBRARY /usr/lib/aarch64-linux-gnu/libcblas.so
Atlas_CLAPACK_INCLUDE_DIR Atlas_CLAPACK_INCLUDE_DIR-NOTFOUND
Atlas_LAPACK_LIBRARY /usr/lib/aarch64-linux-gnu/liblapack.so
BUILD_CUDA_STUBS OFF
BUILD_DOCS OFF
BUILD_EXAMPLES OFF
BUILD_ITT ON
BUILD_JASPER OFF
BUILD_JAVA ON
BUILD_JPEG OFF
BUILD_LIST
BUILD_OPENEXR OFF
BUILD_PACKAGE ON
BUILD_PERF_TESTS ON
BUILD_PNG OFF
BUILD_PROTOBUF ON
BUILD_SHARED_LIBS ON
BUILD_TBB OFF
BUILD_TESTS ON
BUILD_TIFF OFF
BUILD_USE_SYMLINKS OFF
BUILD_WEBP OFF
BUILD_WITH_DEBUG_INFO OFF
BUILD_WITH_DYNAMIC_IPP OFF
BUILD_ZLIB OFF
BUILD_opencv_alphamat ON
BUILD_opencv_apps ON
BUILD_opencv_aruco ON
BUILD_opencv_bgsegm ON
BUILD_opencv_bioinspired ON
BUILD_opencv_calib3d ON
BUILD_opencv_ccalib ON
BUILD_opencv_core ON
BUILD_opencv_cudaarithm ON
BUILD_opencv_cudabgsegm ON
BUILD_opencv_cudacodec ON
BUILD_opencv_cudafeatures2d ON
BUILD_opencv_cudafilters ON
BUILD_opencv_cudaimgproc ON
BUILD_opencv_cudalegacy ON
BUILD_opencv_cudaobjdetect ON
BUILD_opencv_cudaoptflow ON
BUILD_opencv_cudastereo ON
BUILD_opencv_cudawarping ON
BUILD_opencv_cudev ON
BUILD_opencv_cvv ON
BUILD_opencv_datasets ON
BUILD_opencv_dnn ON
BUILD_opencv_dnn_objdetect ON
BUILD_opencv_dnn_superres ON
BUILD_opencv_dpm ON
BUILD_opencv_face ON
BUILD_opencv_features2d ON
BUILD_opencv_flann ON
BUILD_opencv_freetype ON
BUILD_opencv_fuzzy ON
BUILD_opencv_gapi ON
BUILD_opencv_hdf ON
BUILD_opencv_hfs ON
BUILD_opencv_highgui ON
BUILD_opencv_img_hash ON
BUILD_opencv_imgcodecs ON
BUILD_opencv_imgproc ON
BUILD_opencv_intensity_transfo ON
BUILD_opencv_java_bindings_gen ON
BUILD_opencv_js OFF
BUILD_opencv_line_descriptor ON
BUILD_opencv_ml ON
BUILD_opencv_objdetect ON
BUILD_opencv_optflow ON
BUILD_opencv_phase_unwrapping ON
BUILD_opencv_photo ON
BUILD_opencv_plot ON
BUILD_opencv_python2 ON
BUILD_opencv_python3 ON
BUILD_opencv_python_bindings_g ON
BUILD_opencv_python_tests ON
BUILD_opencv_quality ON
BUILD_opencv_rapid ON
BUILD_opencv_reg ON
BUILD_opencv_rgbd ON
BUILD_opencv_saliency ON
BUILD_opencv_sfm ON
BUILD_opencv_shape ON
BUILD_opencv_stereo ON
BUILD_opencv_stitching ON
BUILD_opencv_structured_light ON
BUILD_opencv_superres ON
BUILD_opencv_surface_matching ON
BUILD_opencv_text ON
BUILD_opencv_tracking ON
BUILD_opencv_ts ON
BUILD_opencv_video ON
BUILD_opencv_videoio ON
BUILD_opencv_videostab ON
BUILD_opencv_world OFF
BUILD_opencv_xfeatures2d ON
BUILD_opencv_ximgproc ON
BUILD_opencv_xobjdetect ON
BUILD_opencv_xphoto ON
CAROTENE_NS carotene_o4t
CCACHE_PROGRAM CCACHE_PROGRAM-NOTFOUND
CLAMDBLAS_INCLUDE_DIR CLAMDBLAS_INCLUDE_DIR-NOTFOUND
CLAMDBLAS_ROOT_DIR CLAMDBLAS_ROOT_DIR-NOTFOUND
CLAMDFFT_INCLUDE_DIR CLAMDFFT_INCLUDE_DIR-NOTFOUND
CLAMDFFT_ROOT_DIR CLAMDFFT_ROOT_DIR-NOTFOUND
CMAKE_BUILD_TYPE RELEASE
CMAKE_CONFIGURATION_TYPES Debug;Release
CMAKE_INSTALL_PREFIX /usr/local
CPU_BASELINE NEON;FP16
CPU_BASELINE_DISABLE ;VFPV3
CPU_BASELINE_REQUIRE ;NEON
CPU_DISPATCH
CUDA_ARCH_BIN 7.2
CUDA_ARCH_PTX
CUDA_FAST_MATH ON
CUDA_GENERATION
CUDA_HOST_COMPILER /usr/bin/cc
CUDA_TOOLKIT_ROOT_DIR /usr/local/cuda-10.2
CUDA_USE_STATIC_CUDA_RUNTIME ON
CUDA_rt_LIBRARY /usr/lib/aarch64-linux-gnu/librt.so
CV_DISABLE_OPTIMIZATION OFF
CV_ENABLE_INTRINSICS ON
CV_TRACE ON
Caffe_INCLUDE_DIR Caffe_INCLUDE_DIR-NOTFOUND
Caffe_LIBS Caffe_LIBS-NOTFOUND
Ceres_DIR Ceres_DIR-NOTFOUND
ENABLE_BUILD_HARDENING OFF
ENABLE_CCACHE ON
ENABLE_CONFIG_VERIFICATION OFF
ENABLE_COVERAGE OFF
ENABLE_FAST_MATH ON
ENABLE_FLAKE8 OFF
ENABLE_GNU_STL_DEBUG OFF
ENABLE_IMPL_COLLECTION OFF
ENABLE_INSTRUMENTATION OFF
ENABLE_LTO OFF
ENABLE_NEON ON
ENABLE_NOISY_WARNINGS OFF
ENABLE_OMIT_FRAME_POINTER ON
ENABLE_PIC ON
ENABLE_PRECOMPILED_HEADERS OFF
ENABLE_PROFILING OFF
ENABLE_PYLINT OFF
ENABLE_SOLUTION_FOLDERS OFF
ENABLE_VFPV3 OFF
EXECUTABLE_OUTPUT_PATH /home/dronemaitre/Documents/opencv_cpp/opencv/build/bin
Eigen3_DIR /usr/lib/cmake/eigen3
GENERATE_ABI_DESCRIPTOR OFF
Glog_LIBS /usr/lib/aarch64-linux-gnu/libglog.so
HDF5_C_LIBRARY_dl /usr/lib/aarch64-linux-gnu/libdl.so
HDF5_C_LIBRARY_hdf5 /usr/lib/aarch64-linux-gnu/hdf5/serial/libhdf5.so
HDF5_C_LIBRARY_m /usr/lib/aarch64-linux-gnu/libm.so
HDF5_C_LIBRARY_pthread /usr/lib/aarch64-linux-gnu/libpthread.so
HDF5_C_LIBRARY_sz /usr/lib/aarch64-linux-gnu/libsz.so
HDF5_C_LIBRARY_z /usr/lib/aarch64-linux-gnu/libz.so
INSTALL_CREATE_DISTRIB OFF
INSTALL_C_EXAMPLES OFF
INSTALL_PYTHON_EXAMPLES OFF
INSTALL_TESTS OFF
INSTALL_TO_MANGLED_PATHS OFF
LAPACKE_INCLUDE_DIR LAPACKE_INCLUDE_DIR-NOTFOUND
LAPACK_CBLAS_H
LAPACK_IMPL Unknown
LAPACK_INCLUDE_DIR
LAPACK_LAPACKE_H
LAPACK_LIBRARIES
Lept_LIBRARY Lept_LIBRARY-NOTFOUND
MKL_INCLUDE_DIRS MKL_ROOT_DIR-NOTFOUND/include
MKL_LAPACKE_INCLUDE_DIR MKL_LAPACKE_INCLUDE_DIR-NOTFOUND
MKL_ROOT_DIR MKL_ROOT_DIR-NOTFOUND
MKL_WITH_OPENMP OFF
MKL_WITH_TBB OFF
OGRE_DIR OGRE_DIR-NOTFOUND
OPENCL_FOUND ON
OPENCV_CONFIG_FILE_INCLUDE_DIR /home/dronemaitre/Documents/opencv_cpp/opencv/build
OPENCV_DNN_CUDA OFF
OPENCV_DNN_OPENCL ON
OPENCV_DOWNLOAD_PATH /home/dronemaitre/Documents/opencv_cpp/opencv/.cache
OPENCV_DUMP_HOOKS_FLOW OFF
OPENCV_ENABLE_ALLOCATOR_STATS ON
OPENCV_ENABLE_ATOMIC_LONG_LONG OFF
OPENCV_ENABLE_MEMALIGN ON
OPENCV_ENABLE_MEMORY_SANITIZER OFF
OPENCV_ENABLE_NONFREE OFF
OPENCV_EXTRA_MODULES_PATH /home/dronemaitre/Documents/opencv_cpp/opencv_contrib/modules
OPENCV_FORCE_3RDPARTY_BUILD OFF
OPENCV_FORCE_PYTHON_LIBS OFF
OPENCV_GENERATE_PKGCONFIG ON
OPENCV_GENERATE_SETUPVARS ON
OPENCV_JAVA_SOURCE_VERSION
OPENCV_JAVA_TARGET_VERSION
OPENCV_MATHJAX_RELPATH https://cdnjs.cloudflare.com/ajax/libs/mathjax/2.7.0
OPENCV_PYTHON3_VERSION OFF
OPENCV_TIMESTAMP 2021-01-18T12:55:10Z
OPENCV_WARNINGS_ARE_ERRORS OFF
OPENEXR_INCLUDE_PATH OPENEXR_INCLUDE_PATH-NOTFOUND
OpenCV_HAL_DIR OpenCV_HAL_DIR-NOTFOUND
OpenJPEG_DIR OpenJPEG_DIR-NOTFOUND
PROTOBUF_UPDATE_FILES OFF
PYTHON2_EXECUTABLE /usr/bin/python2.7
PYTHON2_INCLUDE_DIR /usr/include/python2.7
PYTHON2_INCLUDE_DIR2
PYTHON2_LIBRARY /usr/lib/aarch64-linux-gnu/libpython2.7.so
PYTHON2_LIBRARY_DEBUG
PYTHON2_NUMPY_INCLUDE_DIRS /usr/lib/python2.7/dist-packages/numpy/core/include
PYTHON2_PACKAGES_PATH lib/python2.7/dist-packages
PYTHON3_EXECUTABLE /usr/bin/python3
PYTHON3_INCLUDE_DIR /usr/include/python3.6m
PYTHON3_INCLUDE_DIR2
PYTHON3_LIBRARY /usr/lib/aarch64-linux-gnu/libpython3.6m.so
PYTHON3_LIBRARY_DEBUG
PYTHON3_NUMPY_INCLUDE_DIRS /usr/lib/python3/dist-packages/numpy/core/include
PYTHON3_PACKAGES_PATH lib/python3.6/dist-packages
Qt5Concurrent_DIR /usr/lib/aarch64-linux-gnu/cmake/Qt5Concurrent
Qt5Core_DIR /usr/lib/aarch64-linux-gnu/cmake/Qt5Core
Qt5Gui_DIR /usr/lib/aarch64-linux-gnu/cmake/Qt5Gui
Qt5OpenGL_DIR /usr/lib/aarch64-linux-gnu/cmake/Qt5OpenGL
Qt5Test_DIR /usr/lib/aarch64-linux-gnu/cmake/Qt5Test
Qt5Widgets_DIR /usr/lib/aarch64-linux-gnu/cmake/Qt5Widgets
Qt5_DIR /usr/lib/aarch64-linux-gnu/cmake/Qt5
TBB_DIR TBB_DIR-NOTFOUND
TBB_ENV_INCLUDE /usr/include
TBB_ENV_LIB /usr/lib/aarch64-linux-gnu/libtbb.so
TBB_ENV_LIB_DEBUG TBB_ENV_LIB_DEBUG-NOTFOUND
TBB_VER_FILE /usr/include/tbb/tbb_stddef.h
Tesseract_DIR Tesseract_DIR-NOTFOUND
Tesseract_INCLUDE_DIR Tesseract_INCLUDE_DIR-NOTFOUND
Tesseract_LIBRARY Tesseract_LIBRARY-NOTFOUND
VTK_DIR VTK_DIR-NOTFOUND
WEBP_INCLUDE_DIR WEBP_INCLUDE_DIR-NOTFOUND
WITH_1394 ON
WITH_ADE ON
WITH_ARAVIS OFF
WITH_CAROTENE ON
WITH_CLP OFF
WITH_CUBLAS ON
WITH_CUDA ON
WITH_CUDNN ON
WITH_CUFFT ON
WITH_EIGEN ON
WITH_FFMPEG ON
WITH_FREETYPE OFF
WITH_GDAL OFF
WITH_GDCM OFF
WITH_GPHOTO2 OFF
WITH_GSTREAMER ON
WITH_GTK ON
WITH_GTK_2_X OFF
WITH_HALIDE OFF
WITH_HPX OFF
WITH_IMGCODEC_HDR ON
WITH_IMGCODEC_PFM ON
WITH_IMGCODEC_PXM ON
WITH_IMGCODEC_SUNRASTER ON
WITH_INF_ENGINE OFF
WITH_ITT ON
WITH_JASPER ON
WITH_JPEG ON
WITH_LAPACK ON
WITH_LIBREALSENSE OFF
WITH_MATLAB OFF
WITH_MFX OFF
WITH_NGRAPH OFF
WITH_NVCUVID ON
WITH_OPENCL ON
WITH_OPENCLAMDBLAS ON
WITH_OPENCLAMDFFT ON
WITH_OPENCL_SVM OFF
WITH_OPENEXR ON
WITH_OPENGL ON
WITH_OPENJPEG ON
WITH_OPENMP OFF
WITH_OPENNI OFF
WITH_OPENNI2 OFF
WITH_OPENVX OFF
WITH_PLAIDML OFF
WITH_PNG ON
WITH_PROTOBUF ON
WITH_PTHREADS_PF ON
WITH_PVAPI OFF
WITH_QT ON
WITH_QUIRC ON
WITH_TBB ON
WITH_TENGINE OFF
WITH_TESSERACT ON
WITH_TIFF ON
WITH_V4L ON
WITH_VA OFF
WITH_VA_INTEL OFF
WITH_VTK ON
WITH_VULKAN OFF
WITH_WEBP ON
WITH_XIMEA OFF
WITH_XINE OFF
opencv_dnn_PERF_CAFFE OFF
opencv_dnn_PERF_CLCAFFE OFF 我们可以看到，数据自动化系统是使国际海事组织，但也是NVCUVID，即使我认为它不是直到现在
端编辑
最后，当当前构建结束时，我将尝试ccmake函数，并编辑或发布结果。
再次感谢大家的支持！
回答 2
Stack Overflow用户
发布于 2021-03-02 17:38:43
我花了两个多星期/几十个小时才终于开始工作(我的配置类似)。这就是我所做的(我希望我记得所有的事情)：
- my system: Ubuntu18.04 on i7-4790 + GTX1050Ti (驱动程序ver ).460.39) +数据自动化系统10.2 + OpenCV 4.5.1 + ffmpeg OpenCV和ffmpeg是在数据自动化系统支持下构建的。
- OpenCV构建选项：
cmake -D CMAKE_BUILD_TYPE=RELEASE \
-D CMAKE_C_COMPILER=/usr/bin/gcc-7 \
-D CMAKE_INSTALL_PREFIX=/usr/local \
-D INSTALL_PYTHON_EXAMPLES=ON \
-D INSTALL_C_EXAMPLES=ON \
-D WITH_TBB=ON \
-D WITH_CUDA=ON \
-D WITH_NVCUVID=ON \
-D WITH_NVCUVENC=OFF \
-D BUILD_opencv_cudacodec=ON \
-D WITH_CUDNN=OFF \
-D OPENCV_DNN_CUDA=OFF \
-D CUDA_ARCH_BIN=6.1 \
-D ENABLE_FAST_MATH=1 \
-D CUDA_FAST_MATH=1 \
-D WITH_CUBLAS=1 \
-D WITH_V4L=ON \
-D WITH_QT=ON \
-D WITH_OPENGL=ON \
-D WITH_GSTREAMER=ON \
-D OPENCV_GENERATE_PKGCONFIG=ON \
-D OPENCV_PC_FILE_NAME=opencv4.pc \
-D OPENCV_ENABLE_NONFREE=ON \
-D OPENCV_PYTHON3_INSTALL_PATH=/usr/lib/python3.6/site-packages \
-D OPENCV_EXTRA_MODULES_PATH=/path/to/opencv_contrib-4.5.1/modules \
-D PYTHON_EXECUTABLE="/usr/bin/python2" \
-D PYTHON_DEFAULT_EXECUTABLE="/usr/bin/python3" \
-D PYTHON3_EXECUTABLE="/usr/bin/python3" \
-D BUILD_EXAMPLES=ON ..- ffmpeg -我使用了许多关于在数据自动化系统支持下构建ffmepg的广泛可用教程之一，我的构建看起来如下：
ffmpeg version N-101174-g14dc28e969 Copyright (c) 2000-2021 the FFmpeg developers
built with gcc 7 (Ubuntu 7.5.0-3ubuntu1~18.04)
configuration: --prefix=/home/lg/ffmpeg_build2 --pkg-config-flags=--static --extra-cflags=-I/home/lg/ffmpeg_build2/include --extra-ldflags=-L/home/lg/ffmpeg_build2/lib --extra-libs='-lpthread -lm' --bindir=/home/lg/bin2 --enable-cuda --enable-cuvid --enable-libnpp --extra-cflags=-I/usr/local/cuda/include/ --extra-ldflags=-L/usr/local/cuda/lib64/ --enable-gpl --enable-opencl --enable-opengl --enable-libass --enable-libfreetype --enable-libmp3lame --enable-libopus --enable-libvorbis --enable-libfdk-aac --enable-libvpx --enable-libx264 --enable-libx265 --enable-nvenc --enable-vaapi --enable-vdpau --enable-nonfree --cpu=native --extra-cflags='-march=native'- 虽然编译OpenCV 4.5.1是成功的，但使用简单
cv::cudacodec::createVideoReader()的c++示例不起作用，错误是
The function/feature is not implemented) The called functionality is disabled for current build or platform in function 'throw_no_cuda'- 我下载了NVIDIA的Video_Codec_SDK_10.0.26，并将
nvcuvid.h、cuviddec.h和nvEncodeAPI.h从/Interface复制到CUDA的包含dir (在我的例子中是/usr/local/cuda-10.2/targets/x86_64-linux/include)和/usr/inlcude。可能没有必要将所有这些文件都放在两个位置。
- 再次重新编译OpenCV。设置这两个选项是至关重要的：
-D WITH_NVCUVID=ON \
-D BUILD_opencv_cudacodec=ON \没有它们，OpenCV就没有安装NVCUVID模块。编译失败时出错，它抱怨cudaVideoCodec_AV1没有声明或类似的东西，在文件opencv_contrib-4.5.1/modules/cudacodec/src/video_decoder.cpp中，第81行。因为我不打算使用AV1，所以我只是删除了这一行。在此之后，编译终于成功了。
- 时间来检查数据自动化系统VideoReader样本-解码H264工作！但HEVC没有-错误是未知的FourCC代码在
opencv_contrib-4.5.1/modules/cudacodec/src/ffmpeg_video_source.cpp(我的视频有'hev1‘FourCC)。所以我添加了缺失的definitions:
case CV_FOURCC_MACRO('H', '2', '6', '5'): // fallthru
case CV_FOURCC_MACRO('h', '2', '6', '5'): // fallthru
case CV_FOURCC_MACRO('h', 'e', 'v', 'c'): return HEVC;改为：
case CV_FOURCC_MACRO('H', '2', '6', '5'): // fallthru
case CV_FOURCC_MACRO('h', '2', '6', '5'): // fallthru
case CV_FOURCC_MACRO('h', 'e', 'v', '1'): // fallthru
case CV_FOURCC_MACRO('h', 'v', 'c', '1'): // fallthru
case CV_FOURCC_MACRO('h', 'e', 'v', 'c'): return HEVC;然后最后一次重新编译OpenCV，最后一切正常工作。
Stack Overflow用户
发布于 2021-01-16 09:57:31
(这个答案只是推测性的；如果您发布有关CMake构建日志的信息，我将(可能)编辑它。)
OpenCV告诉你它有no_cuda，即CUDA functionality is disabled for current build or platform
这意味着两件事中的一件：
- 尽管您的“最佳意图”设置了一堆CMake标志，但您的OpenCV是在没有CUDA支持的情况下构建的。这是很有可能的，因为有时
-D值会被忽略以支持检测到的内容，或者在没有特定设置的情况下无法应用。您应该尝试在构建目录中使用ccmake，看看会出现什么。 - 构建是启用CUDA的，但是OpenCV代码无法找到CUDA驱动程序、CUDA运行时库或可用的响应性GPU等等。我不是OpenCV专家，但假设它提供了一些日志记录功能，我会检查一下。@ using 2986898还指出，您可以使用
cv::getBuildInformation()函数.
在运行时获取构建信息。
构建OpenCV的测试或示例并检查这些测试是否有效也可能是有用的。
页面原文内容由Stack Overflow提供。腾讯云小微IT领域专用引擎提供翻译支持
原文链接：
https://stackoverflow.com/questions/65740367
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