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Im looking for a fast workflow, where i can take my gopro video files, make simple cuts (no transisions, no effects, no audio manipulation), and cut them together into a clip and then export that edit out without having to re-encode/compress it.

Im shooting in their lowest HD setting (1280x960)... but would be open to switching formats if it helped.

In looking at this Final Cut Tutorial, it says i could edit without re-encoding if the project format matched the source material. The problem is, my Final Cut doesn't have the exact format my gopro records in... any ideas? Can i install the gopro codec somehow into final cut?

GoPro codec specs:

GoPro AVC H.264
1280x960
29.97

One Idea:

Use QuickTime to set in/out and keep copy/pasting clips into a single clip then SAVE. This works without re-encoding and saves fast, but the the workflow is not that fast. The other downside to this is Quicktime saves all the audio tracks into separate tracks, so the file chokes on youtube/vimeo unless you do an export with re-compression.

  • Have you tried GoPro Studio? – epiclapser Feb 19 '15 at 8:29
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I know for sure that Corel VideoStudio version 7 and up can do straight cuts in AVC-encoded HD video, and then output without re-encoding. You must be careful to use exactly the same output format as input format. I don't know whether it can do the same with 4K. You can download a trial version and see for yourself.

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Use ffmpeg: http://www.labnol.org/internet/useful-ffmpeg-commands/28490/

First cut at your desired in and out points:

ffmpeg -i input.mp4 -ss 00:00:50.0 -codec copy -t 20 output.mp4

Then concatenate the files you cut:

ffmpeg -f concat -i file-list.txt -c copy output.mp4
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    Hardly a fast workflow. Without a gui, determining the in and out points is an arduous effort is flipping from the player to a spreadsheet or text file every forty seconds. Not to mention, precision is broad, as you can only see the player to the full second, but if this is fast camera work, you'd want down to at least tenths. – fredsbend Oct 28 '16 at 22:04
  • This is a reliable solution. A GUI front-end, if exists, would be better, but this answer shouldn't be downvoted for this. – amdyes Aug 22 at 5:49
  • Precision problem is non-existence. You can get millisecond point using a pro editor. Nevertheless, without re-encoding it will only be accurate to keyframes. – amdyes Aug 22 at 5:54
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There are two freeware-tools (for Windows) I know: LosslessCut Free Video Cutter Joiner They both work fine, but remember that you can't make exact cuts where you want, as they can only cut at keyframes (Avidemux ignores this, so the Video is always destroyed at the beginning). But this accuracy depends on the keyframe interval of your video.

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