this post was submitted on 01 May 2024
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[Request] Any Guides to FFMPEG, Transcoding, Codecs, and Metadata? (leminal.space)
submitted 6 months ago by fenndev@leminal.space to c/piracy@lemmy.dbzer0.com
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I have a collection of about ~110 4K Blu-Ray movies that I've ripped and I want to take the time to compress and store them for use on a future Jellyfin server.

I know some very basics about ffmpeg and general codec information, but I have a very specific set of goals in mind I'm hoping someone could point me in the right direction with:

  1. Smaller file size (obviously)
  2. Image quality good enough that I cannot spot the difference, even on a high-end TV or projector
  3. Preserved audio
  4. Preserved HDR metadata

In a perfect world, I would love to be able to convert the proprietary HDR into an open standard, and the Dolby Atmos audio into an open standard, but a good compromise is this.

Assuming that I have the hardware necessary to do the initial encoding, and my server will be powerful enough for transcoding in that format, any tips or pointers?

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[–] shrugal@lemm.ee 14 points 6 months ago (1 children)

Best tip I can give is to use a tool that's made for this task, like Tdarr/FileFlows/Unmanic. They take care of all the complicated issues like encoders, ffmpeg parameters and parallel processing on multiple nodes, so you only have to handle the things you actually care about.

[–] dan@upvote.au 4 points 6 months ago

Unmanic is way easier to understand than Tdarr. I use it to transcode DVR recordings recorded using Plex and a HDHomeRun tuner. Digital TV uses MPEG2 which has pretty large file sizes.