mac上avfoundation' is not a suitable output format

Question

老师，求解。
mac输入命令：ffmpeg -f avfoundation -list_devices true i ""
报错：[NULL @ 0x7fecb5806c00] Requested output format ‘avfoundation’ is not a suitable output format
i: Invalid argument

Answer 1

李超 2021-08-23 20:17:30

1
ffmpeg -f avfoundation -list_devices true -i ""