ffmpeg -c copy "ここに動画タイトルを入れる.ts" -i "https://gw.gyao.yahoo.co.jp/v1/hls/00173:v12097:v1000000000000002913/variant.m3u8?device_type=1100&delivery_type=2&min_bandwidth=254&appkey=52hd8q-XnozawaXc727tmojaFD.SD1yc&appid=ff_rbJCxg67.bRk_lk7CbWFjhorGVKjvFsRgiLDHW4PE.vN6zxDW6KyRr1Zw3rI-"