h261: Move shared data tables from a header to a proper C file
lavfi: replace new filter list with filters left to update.
lavfi/showwaves: switch to an AVOptions-based system.
lavfi/smptebars: switch to AVOptions-based system

Signed-off-by: Paul B Mahol <onemda@gmail.com>
Merge commit '8a776ad90e00ab2b98e8683ac6182d641a383c3a'

* commit '8a776ad90e00ab2b98e8683ac6182d641a383c3a':
  h261: Move shared data tables from a header to a proper C file

Conflicts:
	libavcodec/Makefile
	libavcodec/h261data.c
	libavcodec/h261dec.c
	libavcodec/h261enc.c

Merged-by: Michael Niedermayer <michaelni@gmx.at>
avfilter: add missing ,

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>