[英]opencv installation ffmpeg error
I have been trying to install opencv for a long time in my fedora 20 32 bit system.I followed the instructions from http://docs.opencv.org/trunk/doc/py_tutorials/py_setup/py_setup_in_fedora/py_setup_in_fedora.html#install-opencv-python-in-fedora But after all cmake commands when I m trying to make it I am getting an error again and again. 我一直在试图安装OpenCV在我的Fedora很长一段时间20个32位system.I随后从指令http://docs.opencv.org/trunk/doc/py_tutorials/py_setup/py_setup_in_fedora/py_setup_in_fedora.html#install- opencv-python-in-fedora但是在我尝试执行所有cmake命令后,我一次又一次出错。
scanning dependencies of target opencv_createsamples
[100%] Building CXX object apps/haartraining/CMakeFiles/opencv_createsamples.dir/createsamples.cpp.o
Linking CXX executable ../../bin/opencv_createsamples
/lib/libavcodec.so.55: undefined reference to `vpx_codec_vp9_dx_algo'
/lib/libavcodec.so.55: undefined reference to `vpx_codec_vp9_cx_algo'
collect2: error: ld returned 1 exit status
make[2]: *** [bin/opencv_createsamples] Error 1
make[1]: *** [apps/haartraining/CMakeFiles/opencv_createsamples.dir/all] Error 2
make: *** [all] Error 2
I have followed so many articles about the ffmpeg versions and updating stuff but did understand a little. 我关注了许多关于ffmpeg版本和更新内容的文章,但确实了解得很少。 but when I tried
但是当我尝试
$ sudo yum update ffmpeg
I got the error as 我得到了错误
>Package(s) ffmpeg available, but not installed.
No packages marked for update
What should I do? 我该怎么办?
我在将OpenCV链接到Linux上的FFmpeg的主题中找到了此链接: 如何在Fedora Linux下安装FFmpeg和OpenCV
我在vmware上的fedora 19(32位)上遇到了相同的问题,我更新了machin yum update
之后,我注销并重新启动了machin,并尝试make
agin操作,并且成功了!:]现在在python上,我成功完成了import cv2
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