Merge commit '12700b0219521a5f20c8ba47b3ad7857ea9e0554' into release/2.4
* commit '12700b0219521a5f20c8ba47b3ad7857ea9e0554':
mp3enc: fix a triggerable assert
Conflicts:
libavformat/mp3enc.c
No change as the faulty assert is not in FFmpeg
Merged-by: Michael Niedermayer <michaelni@gmx.at>