无法在Ubuntu14.10上安装最后版本的OpenCV

Question

我尝试使用这里的说明安装opencv，但每次出错时都会得到

Linking CXX shared library ../../lib/libopencv_videoio.so
/usr/bin/ld: /usr/local/lib/libavcodec.a(avpacket.o): relocation R_X86_64_32 against.rodata.str1.1' can not be used when making a shared object; recompile with -fPIC
/usr/local/lib/libavcodec.a: error adding symbols: Bad value
collect2: error: ld returned 1 exit status
modules/videoio/CMakeFiles/opencv_videoio.dir/build.make:191: recipe for target 'lib/libopencv_videoio.so.3.0.0' failed
make[2]: *** [lib/libopencv_videoio.so.3.0.0] Error 1
CMakeFiles/Makefile2:4022: recipe for target 'modules/videoio/CMakeFiles/opencv_videoio.dir/all' failed
make[1]: *** [modules/videoio/CMakeFiles/opencv_videoio.dir/all] Error 2
Makefile:133: recipe for target 'all' failed
make: *** [all] Error 2

当我运行cmake -D CMAKE_BUILD_TYPE=RELEASE ..时，它说一切都很好，并且安装了库。会发生什么，我该怎么解决呢？

Answer 1

请参阅这个StackOverflow问题：在Ubuntu14.10中安装OpenCV

您可以使用cmake使用-D WITH_FFMPEG=OFF，也可以根据OpenCV的需要使用版本9手动编译FFmpeg。