I am trying write CMakeLists with FFmpeg package, with compile on Windows and Linux. First downloaded from FFmpeg-Builds shared releases
I imagine the structure of the project like this:
<project root> deps/ ffmpeg/ win-x64/ incluve/ lib/ bin/ linux-x64/ incluve/ lib/ bin/ src/ CMakeLists.txt How to help CMake find libraries: avcodec, avformat, avutil, etc? Maybe in the folder lib/pkgconfig using PkgConfig it is possible to specify the path. But I dont know how
The following worked well for me on Linux with cmake. You will have to find the equivalents for Windows. I used ffmpeg on Windows, but without cmake (i.e. directly in a Visual Studio project).
sudo apt-get install -y pkg-config sudo apt-get install nasm Download ffmpeg source code:
Build ffmpeg and install it:
tar -xvf <downloaded_filename> cd /root/folder/with/ffmpeg/src ./configure make sudo make install Add the following to your CMakeLists.txt:
In the beginning:
find_package(PkgConfig REQUIRED) pkg_check_modules(LIBAV REQUIRED IMPORTED_TARGET libavdevice libavfilter libavformat libavcodec libswresample libswscale libavutil ) set(CMAKE_FIND_LIBRARY_SUFFIXES .a ${CMAKE_FIND_LIBRARY_SUFFIXES}) In the linker area:
target_link_libraries(${PROJECT_NAME} PUBLIC PkgConfig::LIBAV) 
FYI: there are some unofficial cmake support eg:
https://github.com/snikulov/cmake-modules/blob/master/FindFFmpeg.cmake
but still no official support at least in cmake 3.27.
