"Video deleted by youtube - failed to process"

My original video with unity to ue4 converter demo got silently deleted by youtube, because "processing failed". That's after several people watched it. Thanks, youtube.

Moral of the story: Never upload avi to youtube. Remux to mp4.

Remuxing from avi to mp4 can be done using ffmpeg.

To remux avi to mp4, you can use following command:

ffmpeg.exe -fflags +genpts -i inputvideo.avi -acodec copy -vcodec copy outputvideo.mp4

inputvideo.avi and outputvideo.mp4 are input and output files. +genpts flag is necessary to generate frame durations for mp4 container.