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I have a bunch of videos created with a 10 second intro in the front of each of them. They are all MP4 and basically I want to trim the first 10 seconds off each video. Is there a piece of software that lets me do this as a mass. That is without having to click through each one.

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4 Answers 4

up vote 10 down vote accepted

You can use FFmpeg:

  • Free and open-source
  • Runs on Windows
  • Allows to trim: e.g. to cut the first 2 seconds: ffmpeg -ss 2 -i input.flv -vcodec copy -acodec copy output.flv
  • Is CLI so you can batch.
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I'm using this code to batch them: for %%a in ("*.*") do ffmpeg -ss 10 -i "%%a" -vcodec copy -acodec copy "newfiles\%%~na.mp4"and then a new line: pause –  kdogisthebest Apr 8 at 4:59
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Thanks for sharing the code! –  Franck Dernoncourt Apr 8 at 15:49

You can use Mencoder (part of MPlayer HQ):

  • Free and open-source
  • Runs on Windows
  • Allows to trim: e.g. to cut the first 2 seconds: mencoder.exe -ss 2 -oac copy -ovc copy input.flv -o output.flv (Mencoder uses FFmpeg, hence the similar syntax)
  • Is CLI so you can batch.
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You can use Avidemux:

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Im trying this now –  kdogisthebest Apr 8 at 0:17
    
@kdogisthebest Frankly I'd try FFmpeg first, I haven't used Avidemux for a long time but AFAIR FFmpeg is smoother (at least it was the case a few years ago) :) E.g. Is it possible to use ffmpeg to trim off X seconds from the beginning of a video with an unspecified length? –  Franck Dernoncourt Apr 8 at 4:29

Try Format Factory.

It has a built in tool to trim videos. Its easy to do in it.

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Could you please give more details? What menu? Screenshot would be great. Thanks! –  Nicolas Raoul Apr 8 at 4:48
    
@NicolasRaoul Not the latest version. Try version 3.1 –  TomJ Apr 8 at 5:29

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