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  1. Member
    Join Date: Dec 2013
    Location: Skopje, Macedonia
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    Hi everyone, I received a few files with formats .mpeg and .mp4 and I should encode them to h264. However they are not recognized by k-lite and ffmpeg.


    With hex edtior I found that they are different from most of the files with that extension, the first line is MPG4. Anyone has an Idea how can I find out which codec to use?


    Regards,
    Martin
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  2. Member
    Join Date: Jun 2012
    Location: USA
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    1. Download and install MediaInfo
    2. Be sure to not accept any other software it offers to install
    3. Use it to open your file

    If you can use a hex editor. This should be easy enough.
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  3. Member
    Join Date: Dec 2013
    Location: Skopje, Macedonia
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    After installing the program I get the following info with MediaInfo:
    General
    Complete name : ***
    Format : MPEG-PS
    File size : 12.3 MiB


    Audio
    ID : 199 (0xC7)
    Format : MPEG Audio
    Compression mode : Lossy




    Do you have a recommendation for a codec or a converter for this format?
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  4. I'm a MEGA Super Moderator Baldrick's Avatar
    Join Date: Aug 2000
    Location: Sweden
    Search Comp PM
    No video information?

    Have you tried played it with vlc or smplayer?
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  5. Member leghorn's Avatar
    Join Date: Apr 2007
    Location: Germany
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    That "MPG4" you've found could be the FourCC. I've looked it up. And here's what I've found... <Hit me>

    Some Microsoft stuff.
    Das Leben ist eine Nebelwand voller Rasierklingen. (C. Bukowski)
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  6. Member
    Join Date: Dec 2013
    Location: Skopje, Macedonia
    Search PM
    Originally Posted by Baldrick View Post
    No video information?

    Have you tried played it with vlc or smplayer?


    I have tried VLC with no luck, I also tried the smplayer but it couldn't play it also.


    Regarding the fourCC idea, I'm still looking for that decoder on the internet, If I have any luck. I'll write you.


    Do you think the files could be encrypted and that is the reason the mediainfo couldn't find the video stream? Because I don't have much info for them, and I was asked to try and open them.
    Any idea how to check if they are encrypted?


    Thanks a lot for the help,
    Martin
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  7. Member
    Join Date: Mar 2011
    Location: Nova Scotia, Canada
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    If it's just audio shouldn't mediainfo post the length?

    I'd be doing some serious virus scanning about now.
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  8. Member
    Join Date: Dec 2013
    Location: Skopje, Macedonia
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    I don't think they have viruses.Anyway I work in a Virtual Machine with them mostly because all the programs I install, so they can't do much damage.


    I think they just might be encrypted, but thanks for the concern.
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