ios - unable to export a video file from device in the background -


i using sdavassetexportsession export video file in setup (video , audio) desire. works fine until switch background mode , starting av foundation error : averrorunknown - 11800.

seems apple's avassetexportsession (regard app state) , because it's not customisable can't use in case.

any recommendations ? until have been trying (with no luck) : 1. open background task . 2. create strong refence session

just turn on (in project capabilities - > background mode setting) "audio , airplay"


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