alvr missing libs from ldd on ubuntu 20.04 2021-11-28

gistfile1.txt

mwei@hostname:/usr/lib64/alvr$ ldd libavcodec.so.58
	linux-vdso.so.1 (0x00007ffc0fb64000)
	libavutil.so.56 => not found
	libx264.so.160 => not found
	libx265.so.192 => not found
	libpthread.so.0 => /lib/x86_64-linux-gnu/libpthread.so.0 (0x00007f45c0bc0000)
	libc.so.6 => /lib/x86_64-linux-gnu/libc.so.6 (0x00007f45c09ce000)
	/lib64/ld-linux-x86-64.so.2 (0x00007f45c0c5e000)
mwei@hostname:/usr/lib64/alvr$ ldd libavfilter.so.7
	linux-vdso.so.1 (0x00007ffc4c1a1000)
	libswscale.so.5 => not found
	libavutil.so.56 => not found
	libpthread.so.0 => /lib/x86_64-linux-gnu/libpthread.so.0 (0x00007fd435c1b000)
	libc.so.6 => /lib/x86_64-linux-gnu/libc.so.6 (0x00007fd435a29000)
	/lib64/ld-linux-x86-64.so.2 (0x00007fd435c72000)
mwei@hostname:/usr/lib64/alvr$ ldd libavutil.so.56
	linux-vdso.so.1 (0x00007ffeb9f78000)
	libm.so.6 => /lib/x86_64-linux-gnu/libm.so.6 (0x00007f29f4359000)
	libdrm.so.2 => /lib/x86_64-linux-gnu/libdrm.so.2 (0x00007f29f4345000)
	libvulkan.so.1 => /lib/x86_64-linux-gnu/libvulkan.so.1 (0x00007f29f42ef000)
	libpthread.so.0 => /lib/x86_64-linux-gnu/libpthread.so.0 (0x00007f29f42cc000)
	libc.so.6 => /lib/x86_64-linux-gnu/libc.so.6 (0x00007f29f40da000)
	/lib64/ld-linux-x86-64.so.2 (0x00007f29f4766000)
	libdl.so.2 => /lib/x86_64-linux-gnu/libdl.so.2 (0x00007f29f40d4000)
mwei@hostname:/usr/lib64/alvr$ ldd libswscale.so.5
	linux-vdso.so.1 (0x00007ffe985f6000)
	libavutil.so.56 => not found
	libm.so.6 => /lib/x86_64-linux-gnu/libm.so.6 (0x00007fcbbc459000)
	libc.so.6 => /lib/x86_64-linux-gnu/libc.so.6 (0x00007fcbbc267000)
	/lib64/ld-linux-x86-64.so.2 (0x00007fcbbc650000)