No that was in Windows on another PC with GTX-1050TI as I said before.
Here is the cMP5,1 Firefox Nightly BigSur (drops like hell):
Same video in Safari (smooth as a butter):
Conclusion?
VP9 does not work properly in Firefox yet 8K60FPS.
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macOS 11 Big Sur Safari YouTube 4K HDR VP9 support
- Thread starter EugW
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Here is the cMP5,1 Firefox Nightly BigSur (drops like hell):
Same video in Safari (smooth as a butter):
Conclusion?
VP9 does not work properly in Firefox yet 8K60FPS.
Yes, I have. Thats the reason I think there is something else than just pure CPU instructions, and in Safari videotoolbox is called and some functions of the Intel Iris is used which Firefox does not.
Hmmm... I wish I could test more machines, but I can't.
My two more recent machines are 2017 Kaby Lake, and we already know they have full hardware VP9 decode support. My bazillion older machines can't run Big Sur. I have nothing in between. (All of my pre-2017 Macs are from 2010 or earlier.)
I have seen that in newer uploaded videos 8k is typically only available with AV1, while 4k is in VP9.
You probably missed that my Video card on that machine is GTX-1050 TI and is using hardware decoding (around 90% usage)
I'll leave it up to you guys and gals of course, but I think it could help if going forward we list the CPU and GPU with the video specs when posting results. It's hard to keep track of all the different hardware from the various posters in this thread.
Some videos will not have the option as they are streamed with AV1. There are videos in this thread you can try which use VP9.
No chance in Safari because it's not hardware supported, you could try Chrome but your CPU is gonna go nuts 😂
I was specifically talking about the videos that have been posted here. None of them have the option of playing in 8K in Safari for me. I'm guessing people here have been using Safari and not Chrome/Firefox to test things out?
It depends on the hardware. On some videos I have the 8k option on my Hackintosh while on the Mid 2014 Retina MacBook Pro i never get any 8k option (which doesn't surprise me, it couldn't play it anyway).
Hm, I find that interesting. If I try to play this
The 4k60 streams I have seen have bitrates up to 40 Mbit/s, but they are very variable and the YouTube player uses buffering. So requirement depends very much on your patience.
If you’re using a MacBook Pro you have to disable Automatic graphics switching and use the discrete graphics to get the 8K option in Safari.
Ok, I have to say this since it’s a video about Peru. My grandfather helped build the railroad tracks from Ollantaytambo to Machu Picchu. He was a friend of the president of Peru and was given the land rights to run the first hotel at Machu Picchu. My dad was born in Machu Picchu, well the town below which had its name changed to Aguas Caliente. My dad would play all day with his brothers in the ruins. Whether it was soccer, tag...whatever. They’d go up and down the ruins to the town below and also run up and down at Huayna Picchu, the ruins at the top of the mountain behind Machu Picchu.
I notice that HDR is once again off on youtube for me, probably due to only hlg working properly before I guess?
Same version of Safari as you (also the latest Public Beta of Big Sur) and these are the only options I see in YT on that video:
Very weird.
Ok, looks like youtube tweaked something overnight.. now getting HDR again in safari, and both HLG and non HLG seem to work now.
8K option no longer available in beta 5 when playing on a MacBook Pro display
The 8K option reappears if you connect a eGPU and external display but decoding performance has dropped badly. 8K is jerky and freezes.