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  1. Member
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    I have 5 files the extensions are 1.mp4 2.mp4 3.mp4 4.mp4 and 5.mp4

    I tried hjsplit to join it but i could not I have avidemux but I dont know is it possible throgh it or not or how?

    plz help me

    thanks in advance
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  2. Member
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    In Avidemux select video=copy, audio=copy, format=mp4.

    Click on File>Open and select 1.mp4 then click on File>Append and select 2.mp4 then 3.mp4 and the rest of your files.

    Click on File>Save>Save Video to save your output file and give it a name and extension of mp4 such as [final_file.mp4]
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  3. Member
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    thanks it worked
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  4. Member
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    Question:

    Are exact copies of your MPEG files guaranteed? Because although I pick copy for video and audio, when you're saving there's still an encoding process. Is this re-encoding or actually copying your exact file without re-encoding?
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  5. Member hech54's Avatar
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    Originally Posted by unclescoob View Post
    Question:

    Are exact copies of your MPEG files guaranteed? Because although I pick copy for video and audio, when you're saving there's still an encoding process. Is this re-encoding or actually copying your exact file without re-encoding?
    NO software can join files without encoding if the file attributes are not identical. Can you guarantee that all of your files are identical in video bitrate, audio bitrate, and in every other specification?
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  6. Member
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    Wait, so is it re-encoding or is it not? And if it is, then what is the purpose of the "copy" option?
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  7. Originally Posted by hech54 View Post
    Can you guarantee that all of your files are identical?
    First you have to answer that above question, videos you tried to append have to be the same kind as first one. Check mediainfo for those videos, compare them. I'm assuming if they are not Avidemux will "fix" it and encode as hech54 says.
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  8. Member
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    My videos are vob files ripped from my DVD set. They're 30 minute episodes from a series, so I'm trying to combine 3 episodes as 1 entire file to burn on a dvd. I don't want to re-encode them, just combine them and burn them on a DVD
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  9. Member hech54's Avatar
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    My rule of thumb was:
    ONE audio stream....no 5.1 audio. That worked every time for joining titles.
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  10. Member
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    These answers, as much as I'm sure you all mean well, have absolutely nothing to do with what I'm asking. I don't think I've explained myself clearly so I'll just start all over. Forgive me for not being clear earlier:

    Once upon a time, I put a DVD in my computer and ripped a few episodes AS-IS, which became .vob files.

    I chose 3 of those .vob files (episodes) and loaded them into Avidemux.

    The goal was to join 3 of those episodes (both audio and video) into ONE SINGLE STREAM for authoring and burning. I did not wish to re-encode.

    I want to just append them and save a copy of them AS-IS (that means NO re-encoding), and save them, both audio and video AS IS for authoring and burning.

    My question is: When I choose the COPY mode in Avidemux for saving, is it truly saving both, audio and video AS-IS, or is it doing some type of re-encoding that I'm not aware of?

    The resulting quality looks exactly the same but the window says "encoding" while it's saving.

    Am I kinda, sorta clear now?
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  11. In copy mode, avidemux doesn't re-encode. (Not even a little - it doesn't smart render a few frames with MPEG2 even if you had performed edits)

    If you look at the speed when it's processing, that should give you another clue: Re-encoding would be much slower than stream copying
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  12. Member
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    Thank you!
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  13. Hi all!
    I've got Windows7, Avidemux 2.6.8., and a problem with joining videos.

    I have videofile01 and videofile02, and i want to join them together.
    I open vf01, then use Append, choose vf02 and avidemux crashes. It says "Crash. Press Ok to built crash info".
    But no info after "Ok", it just closes.

    Could anyone help me to understand - why?

    I tried to join them otherwise: opened 02, appended 01 - and it worked.
    So, as i understand, formats are all right...
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  14. hello.. i try to join files with Avidemux but the final video is broken the first clip is ok but the second(2 video in one) is just broken black white scenes no sound why is what?? ( i testes different files and is the same)
    Last edited by vl4d; 18th Feb 2015 at 18:32.
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  15. Originally Posted by poisondeathray View Post
    If you look at the speed when it's processing, that should give you another clue: Re-encoding would be much slower than stream copying
    This is right. Encoding all the parts here takes 1h40, but the joining of the parts takes 20m. And takes this time because the parts are on a USB device. Differently from the encoding, joining does not takes 100% of the CPU, so the cause of this delay is the speed of the USB.
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  16. Originally Posted by poisondeathray View Post
    In copy mode, avidemux doesn't re-encode. (Not even a little - it doesn't smart render a few frames with MPEG2 even if you had performed edits)

    If you look at the speed when it's processing, that should give you another clue: Re-encoding would be much slower than stream copying
    so, when muxing, if you choose "copy stream", there is 0 smart rendering? Am I understanding correctly? 0 frames are reencoded?
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