FFmpeg

# 快速 mov to mp4
ffmpeg -i IMG_0016.MOV -vcodec copy -acodec copy 16.mp4
# mov to mp4
ffmpeg -i IMG_0016.MOV -vcodec libx264 -preset fast -crf 20 -y -vf "scale=1920:-1" -acodec libmp3lame -ab 128k 16.mp4

# 批量
# -s 720X480 
ls *mov|while read id;do (ffmpeg -i  "$id" -vcodec libx264 -preset fast -crf 20 -y -vf "scale=1920:-1" -acodec libmp3lame -ab 128k   "${id%%.*}.mp4"  );done