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  1. I always used to do MP4Box.exe -par 1=16:9 "video.mp4" which worked fine in the past but not anymore.

    It screwed up the resolution in the header so MediaInfo now reports 720x4294964692 instead of 720x400. I had to delete and re-encode.

    What's the new trendy way to do this since MP4Box doesn't work anymore?
    Last edited by Mephesto; 8th Nov 2012 at 18:09.
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  2. aBigMeanie aedipuss's Avatar
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    delete it and use the backup copy of the video you made before messing with it?

    or toss it and say oh well, i'll remember to make a backup next time
    --
    "a lot of people are better dead" - prisoner KSC2-303
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  3. I'm a MEGA Super Moderator Baldrick's Avatar
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    Try remux with something else? Like ffmpeg or avidemux(under video and audio choose copy).
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  4. Explorer Case's Avatar
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    With MP4Box you set the PAR, not the DAR.
    To set a 720x480 video to 16:9, you need a PAR of (480/720)*(16/9) = 32:27 ≈ 1.185
    For other frame sizes you have to tweak the numbers.
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  5. I'm a MEGA Super Moderator Baldrick's Avatar
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    OKey. Back to the topic now.


    What mp4box version are you using? Maybe try mp4box 0.5.1 dev from http://gpac.wp.mines-telecom.fr/downloads/gpac-nightly-builds/
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  6. Thanks Baldrick, that new MP4Box worked. I'm using r2735, but I'm switching over to that GPAC one now.
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