MP4 with AAC audio to MP4 with MP3 Audio

Discussion in 'DivX / XviD' started by wdwyer, Jun 19, 2005.

  1. wdwyer

    wdwyer Guest

    I've downloaded (legally) an MP4 movie fro archive.org. I want to play it on my new Archos Gmini 400 which plays

    "MPEG-4 SP with MP3 or ADPCM stereo sound, up to 640x400 @ 30 f/s, AVI file format. Reads XviD and DivX®** 4.0 & 5.0. Play Music Video in MPEG-4"

    I'm told the reason it doesn't work is it likely has AAC audio. Is there a tool I can use to strip out and re-encode just the audio. I'm a newbie at this stuff but not an idiot ;-)

    Thanks in advance
    Bill
     
  2. celtic_d

    celtic_d Regular member

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    Think it was me that said that. If so I also said that the mp4 container is most likely an issue.

    mencoder.exe -ovc copy -oac mp3lame input.mp4 -o output.avi would I guess work. You would I think end up with mp4v for a fourCC though which may not work. Not sure if -fourcc DIVX works with -ovc copy.

    Otherwise you could demux the streams using say mp4box, re-encode the audio, then remux.

    Would be much better if all these players just supported mp4 (official MPEG-4 container) instead of avi, asf, etc.
     
  3. wdwyer

    wdwyer Guest

    You did say the container would be an issue.

    Demuxing, converting the audio and remuxing sounds like the ticket

    Thanks
     

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