export OPENCV_LOG_LEVEL=DEBUG
export OPENCV_FFMPEG_LOGLEVEL=trace
export OPENCV_VIDEOIO_DEBUG=1
export OPENCV_VIDEOWRITER_DEBUG=1
export OPENCV_FFMPEG_DEBUG=1
export OPENCV_OPENCL_RAISE_ERROR=1
export OPENCV_OPENCL_ABORT_ON_BUILD_ERROR=1
#export OPENCV_OPENCL_ENABLE_MEM_USE_HOST_PTR=1
#export OPENCV_OPENCL_ALIGNMENT_MEM_USE_HOST_PTR=1
#export OPENCV_OPENCL_RUNTIME=
#export OPENCV_OPENCL_DEVICE=
#export OPENCV_OPENCL_SVM_DISABLE=1
export OPENCV_DUMP_ERRORS=1
export OPENCV_DUMP_CONFIG=1
#export OPENCV_CPU_DISABLE=1
export OPENCV_TRACE=1
export OPENCV_TRACE_SYNC_OPENCL=1
#export OPENCV_FFMPEG_CAPTURE_OPTIONS=
#export OPENCV_FFMPEG_WRITER_OPTIONS=