


Best practice is let the audio in the original format. It is fast, and almost same quality as original. Stream #0:1: Audio: mp3 (U / 0x0055), 32000 Hz, stereo, fltp, 112 kb/sįor the nearly loseless re-containering use: ffmpeg -i "input.avi" -c:v copy -c:a copy "input.mp4"Ĭonversion about 2 sec, result is input.mp4 138MB. For example there is a video file 139MB input.avi ffprobe input.aviĭuration: 00:21:20.16, start: 0.000000, bitrate: 891 kb/s
