usage: streamlink [OPTIONS][STREAM]
streamlink: error: unrecognized arguments: https://●●●●.m3u8 best
pipe:0: Invalid data found when processing input
[cli][debug] OS: Windows 10※ ffmpeg.exe のパスが2つ表示される
[cli][debug] Python: 3.9.8
[cli][debug] Streamlink: 3.0.3
[cli][debug] Requests(2.26.0), Socks(1.7.1), Websocket(1.2.1)
[cli][debug] Arguments:
[cli][debug] url=--ffmpeg-ffmffmpeg-ffmpeg=C:\Program Files\Streamlink\ffmpeg\ffmpeg.exe
[cli][debug] --loglevel=debug
[cli][debug] --ffmpeg-ffmpeg=D:\●●●●\Streamlink\ffmpeg\ffmpeg.exe
error: No plugin can handle URL: --ffmpeg-ffmffmpeg-ffmpeg=C:\Program Files\Streamlink\ffmpeg\ffmpeg.exe