Sean 🇹🇼 says to Ow< [MSFW] ffmpeg -i X.MPG -preset veryfast X.mp4 後 yuv420p, 720x480 [SAR 32:27 DAR 16:9], 1062 kb/s, 29.97 fps, 29.97 tbr, 30k tbn, 59.94 tbc (default)