audio-sync does not seem to be a valid command-line parameter

[AmeerGaafar]

Thank you for this project, it helped me get my h.264 usb camera (not c920) working well with a raspi running my front gate doorbell.
Audio-sync does not seem to be a valid command-line parameter, at least according to available vlc documentation. When output is verbose you get a warning to the same meaning as well "main stream out warning: option audio-sync is unknown".
There is however an " --audio-desync" option that takes a milliseconds argument to attempt to compensate for video and audio being out of sync.
This could be a new feature to add.