Ah, should have been more explicit: you also need a working C compiler (+ make, pkg-config, etc.) and the libav development headers. As for libav itself, if pr

Ah, should have been more explicit: you also need a working C compiler (+ make, pkg-config, etc.) and the libav development headers. As for libav itself, if prebuilt libraries are not present, the build script will fetch the source and build it as a static lib.