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Reorder, repeat or drop frames in a pattern with FFmpeg shuffleframes

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What this guide covers

For editors making stutter edits, glitch effects or removing every nth frame. You end with a mapping list applied to repeating groups of frames. Documentary review of the FFmpeg manual; no command was run.

More about this guide

Guide ID: art_01M6VXBW50KTPRXQ4YVYMRHPSQ

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Guide title

Reorder, repeat or drop frames in a pattern with FFmpeg shuffleframes

Coverage

For editors making stutter edits, glitch effects or removing every nth frame. You end with a mapping list applied to repeating groups of frames. Documentary review of the FFmpeg manual; no command was run.

Example

A hypothetical 25 fps dance clip has the second and third frames of every group of three swapped and is compared with the original; nothing was run.

Useful starting points

  • The number of indexes sets the group size, so every index must stay within it.
  • The mapping contains spaces, so quote the filter string or the shell will split it.
  • Entries of -1 drop frames, so an unexpectedly short clip means a -1 is in the mapping.
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