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python-2.7 - 编译 OpenCV 错误

问题描述

我试图在我的树莓派 3b+ 上安装 opencv。我基于来自pyimagesearch的教程。我在第 5 步：编译和安装 OpenCV上。执行make命令后出现错误。在 15% 时，我遇到了屏幕上的错误。

错误：

[ 22%] Building CXX object modules/dnn/CMakeFiles/opencv_dnn.dir/src/layers/fully_connected_layer.cpp.o
/home/pi/opencv-3.1.0/modules/videoio/src/cap_ffmpeg_impl.hpp: In member function ‘bool OutputMediaStream_FFMPEG::open(const char*, int, int, double)’:
/home/pi/opencv-3.1.0/modules/videoio/src/cap_ffmpeg_impl.hpp:2207:30: warning: ignoring return value of ‘int avformat_write_header(AVFormatContext*, AVDictionary**)’, declared with attribute warn_unused_result [-Wunused-result]
         avformat_write_header(oc_, NULL);
         ~~~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~
make[2]: *** [modules/videoio/CMakeFiles/opencv_videoio.dir/build.make:154: modules/videoio/CMakeFiles/opencv_videoio.dir/src/cap_ffmpeg.cpp.o] Error 1
make[1]: *** [CMakeFiles/Makefile2:4209: modules/videoio/CMakeFiles/opencv_videoio.dir/all] Error 2
make[1]: *** Waiting for unfinished jobs....
[ 22%] Building CXX object modules/dnn/CMakeFiles/opencv_dnn.dir/src/layers/im2col.cpp.o
[ 22%] Building CXX object modules/dnn/CMakeFiles/opencv_dnn.dir/src/layers/layers_common.cpp.o
[ 22%] Building CXX object modules/dnn/CMakeFiles/opencv_dnn.dir/src/layers/lrn_layer.cpp.o
[ 22%] Building CXX object modules/dnn/CMakeFiles/opencv_dnn.dir/src/layers/mvn_layer.cpp.o
[ 22%] Building CXX object modules/dnn/CMakeFiles/opencv_dnn.dir/src/layers/pooling_layer.cpp.o
[ 22%] Building CXX object modules/dnn/CMakeFiles/opencv_dnn.dir/src/layers/reshape_layer.cpp.o
[ 22%] Building CXX object modules/dnn/CMakeFiles/opencv_dnn.dir/src/layers/slice_layer.cpp.o
[ 22%] Building CXX object modules/dnn/CMakeFiles/opencv_dnn.dir/src/layers/softmax_layer.cpp.o
[ 23%] Building CXX object modules/dnn/CMakeFiles/opencv_dnn.dir/src/layers/split_layer.cpp.o
[ 23%] Building CXX object modules/dnn/CMakeFiles/opencv_dnn.dir/src/torch/THDiskFile.cpp.o
[ 23%] Building CXX object modules/dnn/CMakeFiles/opencv_dnn.dir/src/torch/THFile.cpp.o
[ 23%] Building CXX object modules/dnn/CMakeFiles/opencv_dnn.dir/src/torch/THGeneral.cpp.o
[ 23%] Building CXX object modules/dnn/CMakeFiles/opencv_dnn.dir/src/torch/torch_importer.cpp.o
[ 23%] Building CXX object modules/dnn/CMakeFiles/opencv_dnn.dir/opencl_kernels_dnn.cpp.o
[ 23%] Linking CXX shared library ../../lib/libopencv_dnn.so
[ 23%] Built target opencv_dnn
make: *** [Makefile:163: all] Error 2

当我的 cmake 看起来像：

cmake -D CMAKE_BUILD_TYPE=RELEASE \
      -D CMAKE_INSTALL_PREFIX=/usr/local \
      -D INSTALL_PYTHON_EXAMPLES=ON \
      -D OPENCV_EXTRA_MODULES_PATH=~/opencv_contrib-3.1.0/modules \
      -D ENABLE_PRECOMPILED_HEADERS=OFF \
      -D WITH_TBB=OFF \
      -D BUILD_EXAMPLES=ON ..

我收到如下错误：

make[2]: *** [modules/videoio/CMakeFiles/opencv_videoio.dir/build.make:154: modules/videoio/CMakeFiles/opencv_videoio.dir/src/cap_ffmpeg.cpp.o] Error 1
make[2]: *** Waiting for unfinished jobs....
make[1]: *** [CMakeFiles/Makefile2:4209: modules/videoio/CMakeFiles/opencv_videoio.dir/all] Error 2
make: *** [Makefile:163: all] Error 2

我会很感激任何建议。

标签： python-2.7opencvcompilationraspberry-pi

解决方案

好的，我处理了这个问题。我的解决方案是在 sd 卡上安装全新的 Raspberry Pi Buster 映像。然后我根据pyimagesearch的另一个教程安装了 opencv 。

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