Export of overlaid video fails if no audio

_Ra_

If the imported video has no audio then export with overlay ends with "Failed" and NullPointerException appears in log.

Same video with sound and export works.

aol_of_RaceChrono

OK, thanks for reporting! I have it on my TO-DO list now.

aol_of_RaceChrono

Next version will work fine with input videos without audio. This is for hardware accelerated codec only.