@echo off
set DATE="%date:˜0,4%年%date:˜5,2%月%date:˜8,2%日"
set FILE="ファイル名 %DATE%.mp4"
set TIME="00:30:00"
streamlink.exe "https://www.uniqueradio.jp/agapps/hls/cdn.m3u8" best -O --hls-duration %TIME% | ffmpeg.exe -hide_banner -i pipe:0 -c copy %FILE%