Solution of libavcodec problem in OpenCV
I had manually compiled OpenCV version 3.4.2 on my CentOS system, and it worked well until today. This morning, I received a issue of my SRCNN-cpp project. After I tried to execute the programming I got the following error message:
libavcodec.so.56: cannot open shared object file: No such file or directory. In the beginning, I thought maybe something wrong of the executable, so I tried to recompile the program. Surprisingly, I got the compile errors related to
FFmpeg. I realized I upgraded
FFmpeg a month ago which breaks OpenCV (my
libavcodec.so is symlinked to
As mentioned in this thread, I can solve this problem by these two approaches:
- Recompile OpenCV to link against the latest version of
- Revert the version of
As a hardcore programmer, I selected the solution of recompiling. What’s more, I wanted to upgrade my OpenCV to newer version. For compiling OpenCV from source on CentOS, you can see this article.
Originally published at https://cuda-chen.github.io on January 31, 2020.