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  1. I'm not sure if I'm using the right word when I say "demux".
    Basically, I want to extract the audio & video out of normal video files.
    I don't want these components to be re-encoded.
    They should be "passthrough", "untouched", "lossless", etc.

    I know there's a "Video De/Multiplexers" section here at VideoHelp.
    But many of these programs seem to be limited to a specific video format.
    Is there any program that can "demux" various file formats? (MKV, Mp4, AVI, TS, etc.)
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  2. Originally Posted by jaibubwan View Post
    I'm not sure if I'm using the right word when I say "demux".
    Basically, I want to extract the audio & video out of normal video files.
    I don't want these components to be re-encoded.
    They should be "passthrough", "untouched", "lossless", etc.

    I know there's a "Video De/Multiplexers" section here at VideoHelp.
    But many of these programs seem to be limited to a specific video format.
    Is there any program that can "demux" various file formats? (MKV, Mp4, AVI, TS, etc.)
    Bro use gmkvextractgui mkvcleaver pazera audio extractor

    Sent from my P4 using Tapatalk
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  3. ffmpeg

    Demux audio: -vn -acodec copy
    Demux video: -vcodec copy -an
    Last edited by videobruger; 11th Oct 2017 at 06:22. Reason: Addendum
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  4. Originally Posted by videobruger View Post
    ffmpeg

    Demux audio: -vn -acodec copy
    Demux video: -vcodec copy -an
    Does anyone know how to create a "BAT" file for these commands?
    Specifically, I'd love a BAT file that - when executed - could batch process all files in the same folder.
    Preferably, it should be portable & name the extracted audio/video automatically.

    EDIT: I looked this up, and every batch script out there seems require you output to a fixed format. Wondering why there isn't a script that simply extracts the audio or video to its natural format.
    Last edited by jaibubwan; 11th Oct 2017 at 06:50.
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  5. Originally Posted by imsrk48 View Post
    Unfortunately, this didn't work with alot of my MP4's & TS files.
    It worked on MKV's though.
    Last edited by jaibubwan; 11th Oct 2017 at 07:07.
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  6. for mp4

    Code:
    mp4box -raw * INPUT.mp4
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  7. Originally Posted by pippas View Post
    Unfortunately, this program did not recognize the audio in the MP4's & MKV's I inputed.
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