lavfi/framestep: add timeline support

Signed-off-by: Paul B Mahol <onemda@gmail.com>
lavfi/framestep: cosmetics: reindent AVFilter

Signed-off-by: Paul B Mahol <onemda@gmail.com>
lavfi/il: add timeline support

Signed-off-by: Paul B Mahol <onemda@gmail.com>
lavf/tee: pesudo → pseudo.
tiff: correctly decode saparate planes with horizontal differencing predictor

Closes #2648.

Signed-off-by: Paul B Mahol <onemda@gmail.com>
jpeg2000dec: fix av_log()

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