How to Dub and Audio File into a Video using Mplayer

If you have a video that you want to change the audio with a given mp3, try this command:

mencoder original.wmv -oac copy -ovc copy -audiofile dub.mp3 -o new.wmv


file description
original.wmv The original video to dub.
dub.mp3 An audio file with the new audio. This file should be the same length as the video.
new.wmv The final video that is created.

There will likely be a lot of messages that look like this:

Pos: 522.3s  14486f (60%) 2110.43fps Trem:   0min  32mb  A-V:-0.002 [117:127]
71 duplicate frame(s)!
Pos: 522.3s  14487f (60%) 2110.27fps Trem:   0min  32mb  A-V:0.001 [117:127]
30 duplicate frame(s)!
Pos: 522.4s  14488f (60%) 2110.42fps Trem:   0min  32mb  A-V:-0.000 [117:127]
31 duplicate frame(s)!
Pos: 522.4s  14489f (60%) 2110.56fps Trem:   0min  32mb  A-V:-0.001 [117:127]

These are just warnings, about something that will not prevent the conversion from completion. There may be thousands of these lines, but the conversion will eventually complete. Be patient.

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