TLDR
Enter a command. For example: nm classic, kaggle, pass otp.

mp4box

 
MPEG-4 Systems Toolbox - Muxes streams into MP4 container. More information: https://gpac.wp.imt.fr/mp4box.
 
  • Display information about an existing MP4 file:
     
    mp4box -info {{filename}}
     
  • Add an SRT subtitle file into an MP4 file:
     
    mp4box -add {{input_subs.srt}}:lang=eng -add {{input.mp4}} {{output.mp4}}
     
  • Combine audio from one file and video from another:
     
    mp4box -add {{input1.mp4}}#audio -add {{input2.mp4}}#video {{output.mp4}}

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