What in the actual fuck is going on? These encoders are smart people obviously, but the decision to only release HYBRID files rather than also releasing the P5 sources are absolutely fucking insane. These encoders have been around for years and all of a sudden they’re all doing this. Like what the actual fuck is happening out there? I feel like I only started seeing this bullshit happening right after Rarbg went down.
Many encoders just slap the hdr10/+ and the P5 streams together, not realizing or not caring that they are graded differently. This is sloppy work and it’s bullshit. If you wanna make a p8 hybrid that’s fine…IF you also release the P5 master. I see hdr10 only versions but not the P5 only versions. It’s infuriating.
ELI5 : what is p8 and p5
Dolby vision has multiple profiles. Profile 5 is what streaming services use. Profile 7 is what blurays use. Profile 8 i don’t fully understand but it’s used for these hybrid files. If you look at it in mediainfo it’ll say something like "dv 08.06 / smtp hdr10 compatible.
There’s another profile or two as well but I think they’re rare.
probably because it would require extra encoding time? profile 8 is wide enough supported and usually has HDR fallback for everything else, no idea about merging hdr10/+ with dovi p5, it’s not something I have actually seen, but I don’t consume much dovi content myself.
it could also be that their source is simply p8 dovi
No. They are naive P5, not 8. You’re not understanding the issue. Brightness can be messed up due to combining 2 differently graded sources.
wait, are you saying people are copying P5 onto HDR10 videos and calling it P8? because that’s not P8 lol, now you CAN actually convert profile 5 dovi to profile 8, and you can do that properly, it shouldn’t look any different. can you provide an example of a known bad? I’ve gotten quite curious now
Yea man. Below is an example. So people are taking P5 streams and combining it with HDR10/HDR10+ streams. Problem is that they often aren’t checking (or dont care because they think no one will notice) to make sure both streams are graded the same. So some files likely have wonky brightness. This would be fine if they also posted the original P5 stream…but they aren’t.
thats… interesting… I myself would rather just serve P5 and a converted HDR. as different encodes at that point.
also what tool was used to generate this? seems like a nifty tool.
That’s what I’m sayin! I totally agree. Hybrids are fine if you also serve the P5 source. I mean a lot of us are purists. So it just seems odd to only have hybrids. I just don’t get it.
I’m assuming they use makemkv or dovitool or something. Idk how to do it.
just to make sure im understanding correctly: is it better to get a HDR only encode than hybrid?
I’m more a purist. So if a show was streaming profile 5 Dolby Vision, I’d much rather prefer that over a hybrid format in case the P5 version was graded differently than the HDR10 version.
If a blu-ray is HDR10 only, I’d prefer the HDR10 blu-ray over a hybrid that adds Dolby Vision RPU.
In other words, I’d prefer the original format that the media was mastered in. No funny business!
What practical problem does this pose to you?
The potential for incorrect brightness/grading on the end result. If both hdr10 and p5 streams are graded the same then you’re good. If not, the end result will have messed up brightness. Even some people on the makemkv forums don’t like them lol.