For me on the PI3 with a slight overclocking the 60fps was playable without major stuttering.
Thanks for the info! I have never even thought about overclocking a Pi — maybe because I only have a cheap 2.4 A power supply. I’m happy with 30 fps though. Best not to get used to 60 in other words…
guys but the problem doesn’t seem to be 60fps … from youtube if you play video at 720p at 60fps all works whitout any issue.
if it is overclocking then can we say that we have found a hardware limit of Pi2 ?
maybe it’s not the video resolution itself but the bitrate used by youtube ?
No one said it was about 60 fps in isolation. What do you think the numbers before 60 in “720p60” and “1080p60” represent?
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I’m sorry but I have some difficulty understanding your replies… I did not understand for example if you have or do not have problems similar to what I described.
I can’t speak english not very well and i do a big usage of “google translator” sometime to translate other user reply…
EDIT
If I understand correctly… you have a similar issue on your Pi3 whit youtube 1080p at 60fps and you have switched to 30fps for resolve the issue ?
That is correct.
(1080 * 1920)/(720 * 1280) = 2.25 as many pixels/second for 1080p60 than for 720p60.
30 FPS / 60 FPS = 0.5 as many pixels/second, i.e. twice the work is needed for 1080p60 as for 1080p30.
2.25 * 0.5 = 1.125 times as much work to do 1080p30 as to do 720p60. Almost the same.
maybe I understood the calculation…
pratically are you trying to say that the 1080p at 30fps it’s very similar to 720p at 60fps if we calculate the number of pixels per second ?
If it’s correct this:
1920x1080 = 2073600 pixel…
x 60 fps it’s 124.416.000 pixel every seconds.
x 30 fps it’s 62.208.000 pixel every seconds.
1280x720 = 921.600
x 60 fps = 55.296.000 every seconds.
I don’t thinks this my calculation it’s correct…but even if it were wrong, you can see the huge difference from 30 fps to 60fps at 1080p.
for absurd if 1080p videos it’s works good on recently vero 4k+ in theory they should be played without problem on a raspberry Pi4… their hardware characteristics are almost on the same level…
Yes. They’re only comparable because they’re both from YouTube, and we assume YouTube encodes them the same way.
You can not compare the Vero4k with Pi4 in that way as the Vero can decode VP9 in Hardware
The VPU blocks are completely different. We can do VC-1, MPEG2 in HW. Pi 4 cannot.
OT:
@sam_nazarko and @fzinken I simply did a superficial compare based on value like cpu speed or ram specs etc etc of both hardware.
On Pi4 side i have read some test about usage of vulkan… absurdly we can say they are 2 hardware dedicated to different purposes ?
It was fair to say that on the pi4 at least the one requested in this thread was playable without lag …
EDIT
Returning IT… I’m trying to find a compromise.
I need to “play” with the youtube addons settings and the dash settings to obtain the “best” playable video:
On youtube addons (at today) it’s possible to set the quality of video “1080p Live/720p Video”.
In this mode and whitout touch anythings on dash settings the live shows will be jerky (because 1080p at 60fps it’s been used)… no problems on video at 720p-60fps.
On Dash settings it’s possible to limit the framerate to 30fps… in this mode all works ok whit live opened at 1080p at 30fps but for video also 30fps it’s been used instead 60fps.
I don’t know if you can understand what I mean…there doesn’t seem to be a way to set all videos to 1080p at 30fps when it’s possible.