封装1个视频轨,2个音频轨,2个字幕,加章节的例子:
mp4box -add 1.mp4#video -add 2.m4a#audio:sbr:lang=en -add 3.m4a#audio:sbr:lang=zh -add 4.srt:lang=zh -add 5.srt:lang=en -chap chapters.txt -new new.mp4
mp4box -add 1.mp4#video -add 2.m4a#audio:sbr:lang=en -add 3.m4a#audio:sbr:lang=zh -add 4.srt:lang=zh -add 5.srt:lang=en -chap chapters.txt -new new.mp4