https://vod01-gyao.c.yimg.jp/4235717419001/5635975677001/4235717419001_5635975677001_5635970114001.m3u8

↑これyoutube-dlに渡すと、
[hls,applehttp @ 0x7fd4ad000600] Opening 'crypto+https://vod01-gyao.c.yimg.jp/4235717419001/5635975677001/4235717419001_5635975677001_5635970114001-81.ts' for reading
frame=24000 fps=235 q=-1.0 size= 313344kB time=00:13:20.02 bitrate=3208.6kbits/[tls @ 0x7fd4ab6271c0] IO Error: -9806
Last message repeated 2 times
[hls,applehttp @ 0x7fd4ad000600] Opening 'crypto+https://vod01-gyao.c.yimg.jp/4235717419001/5635975677001/4235717419001_5635975677001_5635970114001-82.ts' for reading
[mpegts @ 0x7fd4ab80c400] PES packet size mismatch
frame=24298 fps=237 q=-1.0 size= 316928kB time=00:13:29.89 bitrate=3205.7kbits/[AVBSFContext @ 0x7fd4ab623ca0] Error parsing ADTS frame header!
[AVBSFContext @ 0x7fd4ab623ca0] Failed to send packet to filter aac_adtstoasc for stream 0
av_interleaved_write_frame(): Invalid data found when processing input
frame=24306 fps=237 q=-1.0 Lsize= 318201kB time=00:13:30.15 bitrate=3217.5kbits/s speed=7.88x
video:304666kB audio:12895kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead: 0.201361%
Conversion failed!


ERROR: ffmpeg exited with code 1
↑というエラーが出て止まってしまう...先生に翻訳してもらったけど英語力が小学生レベルでチンプンカンプン
アホなりにとりあえず--force-generic-extractor付けて再試行するも同様に失敗、誰か助けてクレメンス
動画はgyaoの無料のドラマです