Package: libopenshot Version: 0.2.5+dfsg1-5libopenshot (v. 0.2.5+dfsg1-5) requires libavresample-dev in deboan/control. However, with FFmpeg 4.4-6, libavresample-dev is not available in version 4.4-5, leaving the system broken. Replacing libavresample-dev with libswresample-dev in debian/control fixes the issue.
I am using Ubuntu 20.04, kernel 5.11.0-34-generic and libc6 2.31-0ubuntu9.