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But does this stuttering of movie playback in iTunes and Netflix also appear on the regular xs?
Could someone try that out?
[doublepost=1537992417][/doublepost]It is a problem in XS; stuttering in playback of video in camera roll taken on another camera. It is really annoying.
 
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iPhone Xs Max 256 on YouTube App
[doublepost=1537992660][/doublepost]Watching this
 
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Still has that peculiar horizontal bar at the very top of the screen that gets in the way of every YouTube video. Amazed that hasn’t been fixed yet.
 
People, thanks ! But could you all read the thread before posting? The fact that YouTube now has hdr on iPhone XS has been posted several times now in this thread, so please let us get back to the issue of stuttering in Netflix and iTunes .
 
Can you try the HDR 4K samples on that site, and see how good they play? They are marked with “10-bit”
[doublepost=1537979667][/doublepost]I could play 10,20 and 40MB/s HDR-files (10-bit) with SW-decoding only. So it seems to be able to play some files just fine. I wonder what triggers the stuttering.

Edit: 60mbps 10-bit(HDR) started to stutter with SW-decoder. So the limit for SW-decoding seems to be between 40-60mbps 1080p 10-bit HDR.
Exactly the same playback on my Snapdragon 835 phone :)))
Hw on : plays perfect all videos, including 400mbps 4k hdr 10
Hw off: 200mbps 4k sdr plays perfect
40 Mbps 1920p hdr 10 plays perfect
60mbps 1920p hdr10 begins little stuttering
So Snapdragon 835 = A12 bionic?
 
People, thanks ! But could you all read the thread before posting? The fact that YouTube now has hdr on iPhone XS has been posted several times now in this thread, so please let us get back to the issue of stuttering in Netflix and iTunes .

Also notice the stuttering in the Vudu app which is only playing HDX (1080p). Same as iTunes videos.

I have the XS Max and noticed this the first time tonight. Not constant, but you get these tiny stutters during playback. I also notice that rewinding and watching a scene again could cause it not to stutter.
 
The phone is getting very, very warm watching HDR video. Warmer than when it is connected to charger.
Not a XS issue... Same thing happens on my iPhone X.

EDIT: Come to think of it... I was watching Deadpool 2 in HDR via iTunes on my iPhone X and XS at the same time to compare, and neither one was getting warm. Maybe it’s a YouTube thing. But I also couldn’t notice any stuttering on the XS (my original reason for testing).
 
Not a XS issue... Same thing happens on my iPhone X.

EDIT: Come to think of it... I was watching Deadpool 2 in HDR via iTunes on my iPhone X and XS at the same time to compare, and neither one was getting warm. Maybe it’s a YouTube thing. But I also couldn’t notice any stuttering on the XS (my original reason for testing).

Ok, but i really don’ t get that there really is no news coverage of this issue, Nowhere.
Or people aren’ t looking at Netflix and iTunes long enough to notice, or all the people that have the same problem have faulty hardware.

I still think it can occur on every iPhone XS (MAX) and that it is something wrong with videodecoding. Sometimes I can watch 40 minutes without the issues, and then they appear and it isn’ t fixed to certain scenes.
 
Ok, but i really don’ t get that there really is no news coverage of this issue, Nowhere.
Or people aren’ t looking at Netflix and iTunes long enough to notice, or all the people that have the same problem have faulty hardware.

I still think it can occur on every iPhone XS (MAX) and that it is something wrong with videodecoding. Sometimes I can watch 40 minutes without the issues, and then they appear and it isn’ t fixed to certain scenes.

I would personally probably never notice. I just can’t bring myself to watch an entire movie (or even TV episodes) on my phone. I save those for the big screen via Apple TV.
 
I would personally probably never notice. I just can’t bring myself to watch an entire movie (or even TV episodes) on my phone. I save those for the big screen via Apple TV.
Yeah, that is why the problem is less isolated than people are thinking. I think the problem is in software/IOS not hardware and all xs users have the same problem, but just don’ t notice it.
 
I haven't had any stuttering issues watching HDR 1080 60fps on the YouTube app since the new version came out. Still having issues on Netflix, just terrible.

Since youtube works, I would assume this is could be an issue with the Netflix app? Best case scenario would be they fix it in a new release of the app OR a fix at the OS level.

using iPhone XS 256gb.
 
I haven't had any stuttering issues watching HDR 1080 60fps on the YouTube app since the new version came out. Still having issues on Netflix, just terrible.

Since youtube works, I would assume this is could be an issue with the Netflix app? Best case scenario would be they fix it in a new release of the app OR a fix at the OS level.

using iPhone XS 256gb.
I think it is an issue with 24fps content on the XS and XS Max. Probably something iOS related (IMHO).

YTTV and all 60fps content on Youtube play great. Pretty much everything on iTunes, Netflix, Amazon Prime look pretty bad with the stuttering... All outputting at 24fps.
 
I think it is an issue with 24fps content on the XS and XS Max. Probably something iOS related (IMHO).

YTTV and all 60fps content on Youtube play great. Pretty much everything on iTunes, Netflix, Amazon Prime look pretty bad with the stuttering... All outputting at 24fps.

It’s similar to judder when Playing back 24fps content on a TV and not having the TV match the frame rate. Probably some sort of pulldown judder issue with the new panels/software.
 
It’s similar to judder when Playing back 24fps content on a TV and not having the TV match the frame rate. Probably some sort of pulldown judder issue with the new panels/software.
Oh I know about that. OLEDs in particular can have some strobe effect, etc with 24fps content due to the nearly zero black to white response time (image persistence). I have a LG OLED that has that with 24fps content.

That isn't what I am dealing with here. It seems like the 3:2 pulldown isn't working correctly or something like that. I think it will be solved by software. But nonetheless, it is annoying right now.
 
It’s similar to judder when Playing back 24fps content on a TV and not having the TV match the frame rate. Probably some sort of pulldown judder issue with the new panels/software.
No, I know what you mean, and it could be a problem with 24fps content and decoding on the xs with iOS 12, but it is not frame rate conversion judder, it is a real slow down, like the system is struggling and then it disappears, no more problems, runs smooth before it appears again.
This is quite different than a frame rate conversion problem. But it could be a problem with the decoding of 24p/hz content of iOS . Should explain why the trailers of hdr movies on iTunes run smooth(trailers run on 60p/Hz?) instead of the original movie (24hz/p) that has the stutters/slowdowns.

So : the Ozark, lost in space on Netflix, are they shot in 24p/hz?
 
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Intresting, the problem i was having is also a movie in 24p.

The same movie in infuse using HW-decoding does not stutter. It must be a SW-problem with 24p.
 
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Intresting, the problem i was having is also a movie in 24p.

The same movie in infuse using HW-decoding does not stutter. It must be a SW-problem with 24p.

I really hope it is a software problem, in a week i have to decide to keep this xs max or return it. Don’ t want a swap with a refurbished one later , because of a hw defect.

LTE , WIFi , OLED, build /finish is great on this one, is practically flawless, so I really want to keep this one.
 
Watched another movie in 24p 1080p, no stutter. We can’t find a common denominator here..
 
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