Specify i/o encoding != code encoding in one-liner?

How can I tell Perl that its standard/file input is, say, UTF-16,
without also having it also try to interpret its code as UTF-16?

Things I thought of:

1. Is there any way via -m/-M to specify the equivalent of this use decl?

use encoding UTF-8, STDIN => UTF-16LE, STDOUT => UTF-16LE;

2. Alternatively, will something like this work?

perl -e 'BEGIN { open ARGV, '<:encoding(UTF-16LE)', <&ARGV; } ... '

Any other suggestions?

-- 
Mark J. Reed <markjreed@gmail.com>

• Specify i/o encoding != code encoding in one-liner? by Mark J. Reed
• Re: Specify i/o encoding != code encoding in one-liner? by Aristotle Pagaltzis
• Re: Specify i/o encoding != code encoding in one-liner? by Bram
• AW: Specify i/o encoding != code encoding in one-liner? by Dintelmann, Peter
• Re: Specify i/o encoding != code encoding in one-liner? by Mark J. Reed