Print mxf Universal Label if the user requested verbose logging.

Fixes ticket #2198
lavfi/amerge: make description consistent with documentation

Signed-off-by: Paul B Mahol <onemda@gmail.com>
libfdk-aacenc: Actually check for upper bounds of cutoff

Signed-off-by: Derek Buitenhuis <derek.buitenhuis@gmail.com>
ffv1enc: better heuristic to calculate initial states

Slightly improves compression of 2pass files

Tested-by: "Peter B." <pb@das-werkstatt.com>
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>