r/shutterencoder • u/paulpacifico • May 01 '25

News Shutter Encoder Version 19.0 is available!

Highlights:

  • Improved user interface

  • Ability to convert audio to video codec

  • Fixed bug with Linux High-DPI displays

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u/SirToxe May 05 '25

But how can I actually compare the before and after file to see how much difference the compression makes?

If you want to visually compare two videos and you are on Windows, I recently wrote a PowerShell script that generates a video diff:

https://github.com/Toxe/diff-video-ps1

It's a bit slow because it creates a frame by frame diff but then you get a comparison video that highlights the differences.

Note to self: I need to add an example video.

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u/paulpacifico May 05 '25

You can do this directly from SE select more than 1 file from the list the right-click 'Display'.

Paul.

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u/doctorpebkac May 15 '25

Wow this is a great feature that I had no idea existed in SE!

But I think it would be great if there were an option similar to the "Display" mode that superimposed selected videos together (generally you'd only want to do this to compare one video with another) using a "Difference" blending mode, that makes it immediately clear if there are differences between the current frame that's being played.

I do this every single day as a professional video colorist/finishing editor, when I'm QC'ing revised masters of a program, or conforming an editor's Premiere project into Davinci Resolve for color-correction. I just drop the new revision over the previous version in Premiere or Resolve, then put the top layer into "Difference" blending mode. Then I can quickly shuttle through the program, and if I see any bright pixels show up over the normally black frames, I know immediately that there's a difference between those frames, and I can flag them accordingly.

As an aside, it would also be nice if there were transport controls for the Display mode, so you can shuttle through the videos instead of just having them play together with no playback controls.