Using libv4l in skype

Hello everyone,
I have a web camera ID 0c45: 6270 Microdia PC Camera SN9C201 ,who worked whit 11.4 !
But now I noticed some problems in instructions http://

1.Privacy and security-new correct apparmor profile- make sending fail impossible

2.Fixing jitterish webcam screen-

If you use 64 bit then replace with

LD_PRELOAD=/usr/lib32/libv4l/ skype.real

in 64 bit no exist lib32 directory, only lib and lib64 ,the correct must be LD_PRELOAD=/usr/lib/libv4l/

3.In my case 64 bit system these instructions no longer help, see results

maybe skype looking for lib32 directory?