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lisamelton / video_transcoding

Tools to transcode, inspect and convert videos.
MIT License
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Address UHD blu-ray ripping/encoding in documentation #338

Open zcutlip opened 2 years ago

zcutlip commented 2 years ago

I'm not sure if anything special needs to be done for UHD blu-rays either on the ripping side, or when using transcode-video. Particularly as it applies to fancy stuff like HDR, dolby vision, & atmos

I've ripped a couple UHD blu-rays and encoded them using the same options I've always used, and they seem to be fine. But I wouldn't be surprised to learn at some point there was a better way, or I missed something

Anyway, a mention of this in the documentation would be useful, even if only to say nothing special is required compared to "normal" blu-ray rips.

Thanks!

lisamelton commented 2 years ago

@zcutlip Good idea. This project is currently no longer under active development. I have a new project here which is much better suited for transcoding 4K content and HDR:

https://github.com/donmelton/other_video_transcoding

An upcoming version of the other-transcode tool from that project will actually copy HDR10 metadata when transcoding.

zcutlip commented 2 years ago

Okay, that's good to know, thank you.

I haven't tried other-transcode yet since I do all my transcoding on a Mac mini. This caveat on the wiki suggests maybe macOS is less than ideal:

Apple VideoToolbox is the only hardware video encoder available on macOS. And although it can produce good quality, it's not possible to further improve that quality via tuning.

lisamelton commented 2 years ago

@zcutlip Which macOS is less than ideal in terms of tweaking, the quality, especially on the newer Apple Silicon-based models, is quite good. Plus, other-transcode can use the x264 and x265 software encoders as well. If you want to use x264, I strongly recommend the --x264-cbr option.