Merge pull request #22880 from cudawarped:remember_cudacodec_lib_locations

Prevent cudacodec libs locations being reset when cmake is re-run

CMakeLists.txt

@@ -263,10 +263,10 @@ OCV_OPTION(WITH_CUBLAS "Include NVidia Cuda Basic Linear Algebra Subprograms (BL
 OCV_OPTION(WITH_CUDNN "Include NVIDIA CUDA Deep Neural Network (cuDNN) library support" WITH_CUDA
   VISIBLE_IF WITH_CUDA
   VERIFY HAVE_CUDNN)
-OCV_OPTION(WITH_NVCUVID "Include NVidia Video Decoding library support" OFF  # disabled, details: https://github.com/opencv/opencv/issues/14850
+OCV_OPTION(WITH_NVCUVID "Include NVidia Video Decoding library support" ON
   VISIBLE_IF WITH_CUDA
   VERIFY HAVE_NVCUVID)
-OCV_OPTION(WITH_NVCUVENC "Include NVidia Video Encoding library support" OFF
+OCV_OPTION(WITH_NVCUVENC "Include NVidia Video Encoding library support" ON
   VISIBLE_IF WITH_CUDA
   VERIFY HAVE_NVCUVENC)
 OCV_OPTION(WITH_EIGEN "Include Eigen2/Eigen3 support" (NOT CV_DISABLE_OPTIMIZATION AND NOT CMAKE_CROSSCOMPILING)

cmake/OpenCVDetectCUDA.cmake

@@ -10,6 +10,10 @@ endif()
 
 #set(OPENCV_CMAKE_CUDA_DEBUG 1)
 
+if(CUDA_TOOLKIT_ROOT_DIR)
+  set(CUDA_TOOLKIT_TARGET_DIR ${CUDA_TOOLKIT_ROOT_DIR})
+endif()
+
 if(((NOT CMAKE_VERSION VERSION_LESS "3.9.0")  # requires https://gitlab.kitware.com/cmake/cmake/merge_requests/663
       OR OPENCV_CUDA_FORCE_EXTERNAL_CMAKE_MODULE)
     AND NOT OPENCV_CUDA_FORCE_BUILTIN_CMAKE_MODULE)