未找到的'libavformat/avformat.h‘文件包括<libavformat/avformat.h>

Question

在遵循以下教程时

brew安装python3 pip3安装numpy brew安装cmake git克隆深度=1 https://github.com/Itseez/opencv.git cd opencv mkdir构建cd构建 注意:在下一行中，调整路径以指向正确的python版本cmake -DBUILD_opencv_python3=YES -DBUILD_opencv_python2=NO 可执行文件=/usr/local/bin/python3 3 -DPYTHON3_INCLUDE_DIR=/usr/local/Cellar/python3/3.5.0/Frameworks/Python.framework/Versions/3.5/include/python3.5m/ -DPYTHON3_LIBRARY=/usr/local/Cellar/python3/3.5.0/Frameworks/Python.framework/Versions/3.5/lib/libpython3.5.dylib -DPYTHON3_NUMPY_INCLUDE_DIRS=/Library/Frameworks/Python.framework/Versions/3.5/lib/python3.5/site-packages/numpy/core/include/ -DPYTHON3_PACKAGES_PATH=/Library/Frameworks/Python.framework/Versions/3.5/lib/python3.5/site-packages/ .make -j8 python3 -c "import cv2；cv2

我得到了第10行$ make -j8的错误

[ 39%] Built target opencv_shape
In file included from /Users/mona/Downloads/opencv/modules/videoio/src/cap_ffmpeg.cpp:47:
In file included from /Users/mona/Downloads/opencv/modules/videoio/src/cap_ffmpeg_impl.hpp:65:
/Users/mona/Downloads/opencv/modules/videoio/src/ffmpeg_codecs.hpp:77:12: fatal error: 
      'libavformat/avformat.h' file not found
  #include <libavformat/avformat.h>
           ^
1 error generated.
make[2]: *** [modules/videoio/CMakeFiles/opencv_videoio.dir/src/cap_ffmpeg.cpp.o] Error 1
make[2]: *** Waiting for unfinished jobs....
[ 40%] Linking CXX shared library ../../lib/libopencv_photo.dylib
[ 40%] Built target opencv_photo
make[1]: *** [modules/videoio/CMakeFiles/opencv_videoio.dir/all] Error 2
make: *** [all] Error 2
Monas-MacBook-Pro:build mona$ 

为什么本教程不传递我的OSX？

Answer 1

所以我就是这样解决问题的。如果您还有其他问题，请告诉我：

 ~  c   master ⭑  Face_Recognition  ls                                                                                                  10:03:38 PM
3.1.0.zip            3.1.0.zip.1          opencv-3.1.0         opencv_contrib-3.1.0 papers
-------------------------------------------------------  

In opencv-3.1.0/modules/viz/src/vtk/vtkCocoaInteractorFix.mm
#if VTK_MAJOR_VERSION >= 6 && VTK_MINOR_VERSION >=2

If we use VTK 7.0.0, although it is a newer version, the minor version is less than two, so the vtkCocoaInteractorFix.mm will handle this as older VTK versions and that causes the problem.

So to fix this we just need to add the version number 7 to the line.

#if VTK_MAJOR_VERSION >= 6 && VTK_MINOR_VERSION >=2 || VTK_MAJOR_VERSION >=7
---------------------------------------------------------------------------
cmake -D CMAKE_BUILD_TYPE=RELEASE \
      -D CMAKE_INSTALL_PREFIX=/usr/local \
      -D BUILD_opencv_java=OFF \
      -D WITH_IPP=OFF -D WITH_1394=OFF \
      -D WITH_FFMPEG=OFF\
      -D BUILD_EXAMPLES=ON \
      -D BUILD_TESTS=ON \
      -D BUILD_PERF_TESTS=OFF \
      -D BUILD_DOCS=ON \
      -D BUILD_opencv_python3=ON \
      -D BUILD_opencv_video=ON \
      -D BUILD_opencv_videoio=ON \
      -D BUILD_opencv_videostab=ON \
      -D PYTHON_EXECUTABLE=$(which python) \
      -D OPENCV_EXTRA_MODULES_PATH=/Users/mona/computer_vision/Face_Recognition/opencv_contrib-3.1.0/modules ..


-------------------------------------------------------     
make -j4


-------------------------------------------------------   
sudo make install

重点是-D WITH_FFMPEG=OFF，并给出了-D OPENCV_EXTRA_MODULES_PATH=/Users/mona/computer_vision/Face_Recognition/opencv_contrib-3.1.0/modules ..中opencv模块的绝对路径。