RPI4+64BitOS
FFMPEGのビルドがうまくいかないので，いろいろパッチを当てる
https://github.com/lplassman/FFMPEG-NDI
./configure --enable-nonfree --enable-libndi_newtek --enable-libx264 --enable-libx265 --enable-gpl
make -j $(nproc)
https://github.com/m-ab-s/media-autobuild_suite/issues/2345#issuecomment-1641940988