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I want to take an input of a video file (or image sequence) and then duplicate each frame. So if I had 3 frames, normally they'd go 1,2,3. After duplicating, I'd have 1,1,2,2,3,3 for a total of 6 frames. Is this possible with the compositor or one of the video editors in Blender, or do I have to go outside Blender?

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This can be done in the VSE with the speed control effect:

  1. Select the video strip you want to slow down
  2. Add a speed effect strip (⇧ ShiftA> Effect Strip > Speed Control)
  3. Extend the original strip to twice its length

enter image description here

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  • $\begingroup$ For the reverse effect just use the Strobe setting in the Filter Properties of a strip. $\endgroup$ – Samoth Nov 23 '15 at 9:40
  • $\begingroup$ Okay, I'm trying this and it doesn't seem to be doing anything. I've got double the frames, but when I render the video clip out, it's not any different from the base clip. And in blender if I arrow key through the frames 1 by 1, it's still a new frame each time. It's not duplicating the frames. $\endgroup$ – Ascalon Nov 26 '15 at 4:57
  • $\begingroup$ @Drudge Huh. What happens if you set the speed multiplier to .5 on the speed strip? $\endgroup$ – gandalf3 Nov 26 '15 at 7:58
  • $\begingroup$ @gandalf3 That seems to have worked, but I'm still not sure. I need to try it on more base footage. $\endgroup$ – Ascalon Nov 27 '15 at 22:30

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