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mp4box:tldr:871b0
mp4box: Combine audio from one file and video from another.
$ mp4box -add ${input1-mp4}#audio -add ${input2-mp4}#video ${output-mp4}
try on your machine
The command "mp4box -add ${input1-mp4}#audio -add ${input2-mp4}#video ${output-mp4}" is using the mp4box utility to add audio and video tracks from two different input MP4 files and create a new output MP4 file.
Here's a breakdown of the command:
- "mp4box" is the name of the command-line program used for working with MP4 files.
- "-add" is an option that specifies that you want to add tracks to the output file.
- "${input1-mp4}" is a placeholder for the first input MP4 file. You need to replace it with the actual file path/name.
- "#audio" is used to specify that you want to add the audio track from the first input file.
- "${input2-mp4}" is a placeholder for the second input MP4 file. Similar to the first input, you need to replace it with the actual file path/name.
- "#video" is used to specify that you want to add the video track from the second input file.
- "${output-mp4}" is a placeholder for the output MP4 file. You also need to replace it with the desired file path/name.
Overall, this command is combining the audio track from the first input MP4 file with the video track from the second input MP4 file to create a new output MP4 file.
This explanation was created by an AI. In most cases those are correct. But please always be careful and
never run a command you are not sure if it is safe.