File list of package libx264-dev in buster of architecture amd64
/usr/include/x264.h /usr/include/x264_config.h /usr/lib/x86_64-linux-gnu/libx264.a /usr/lib/x86_64-linux-gnu/libx264.so /usr/lib/x86_64-linux-gnu/pkgconfig/x264.pc /usr/share/doc/libx264-dev/changelog.Debian.gz /usr/share/doc/libx264-dev/copyright