avformat/tee: flip assigment direction

Found-by: CSA
Reviewed-by: Nicolas George <george@nsup.org>
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
x86/hevc_deblock: improve 8bit transpose store macros

Up to four instructions less depending on function and instruction set.

Signed-off-by: James Almer <jamrial@gmail.com>
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>