2022年5月4日 — mp4 file, I have to manually use mp4box -info merge.mp4 to find what is the track ID# for audio, some times, this value is rather high, like 256 ...
2024年3月5日 — Syntax is -add / -cat URL[#FRAGMENT][:opt1...:optN=val] This process will create the destination file if not existing, and add the track(s) ...
2021年4月28日 — ... cat parameter to the MP4Box command. However, this creates issues ... If you know both media fit, you can use -force-cat . See the ...