lavfi: add vignette filter.
lavfi/vignette: make sure a sane sar is set.
j2kdec: s/j2k_/jpeg2000_/

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
jpeg2000: drop red-blue swap

This should no longer be needed as the pix fmt was updated

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
j2k:decode_tile() pass picture as argument

Reduce diff to jpeg2000dec

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
jpeg2000/j2k: merge non functional changes

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
h264_cavlc: fix reading skip run

Fixes Ticket2606

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