Yeah, I ended up training myself and wife to disable Direct Stream at the video settings for any titles that are Main 10 HEVC. Don’t want disable at the account level because we have plenty of 4k to watch too. I ended up going to to the trouble of rebuilding my nas firmware to take advantage of Intel Quick Sync hw transcoding. Video tiles out sometimes because of that but I can stream multiple file’s still.
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Not the most eloquent solution but it works for now, seems like either the Roku cannot really handle HEVC or there is sync issue between direct stream HEVC and transcoded audio and the stutter is the result
and/or it might tell us what it’s not - 'cause mine are Direct Playing both streams - and still have ‘the jerks’.
HEVC Main 8 (no 10) continue to work fine. I’ve acquired some - and painfully made some (CPU transcoding HEVC is a beach) - all is well.
Breaking News:
PMP has ‘the jerks’.
PfW doesn’t.
If Plex wants to finally get rid of PMP - that’ll do it.
Hoping the silence on the issue means they are working hard on the fix 
Unless something has changed I think we’re still operating under the assumption Roku Inc. will do something since they have a bug report and a sample.
Roku Inc. has never in the history of Roku Inc. told any user what they’re doing, what they plan on doing, what they’re not going to do, or what they don’t know how to do.
Right now we’re hoping something good happens, somewhere, done by someone - 'cause as far as ‘News’ - we’ll have to create some ‘Fake News’ if we want any.
Almost every Plex Player is having trouble with HEVC Main 10, but ‘pay no attention to the man behind the curtain’, is the order of the day… Apparently, Infuse (whatever that is) fixed their junk so users of (whatever) that (is) have some relief, from whatever it is hurting the rest of us.
PfW is currently the only thing (at my house) - beside the transcoder - that can play these things.
PMP can’t do it - and that indicates a shortcoming - somewhere.
When your Cadillac won’t take you downtown - you got a problem.
Well - a ‘work-around’ has been discovered and I haven’t fine-tuned all it’s working bits just yet…:
OK - work around invented and included to fit the work flow.
Naughty HEVC Main 10 files arrive
MKVToolNix Remux. <—V45.0
Xmedia Recode Re-Remux to normalize/convert audio to AC3 5.1/AC3 Other and mux in the sub tracks.
No stutter.
Ya’ll don’t mind if I tell ya that’s a PITA, do ya?
Naaaa… didn’t think you would…lol
I’m on the latest version of XR, so if a new one comes along I may be able to skip the first remux, but that remains to be seen. I don’t speak German and even if I did there doesn’t seem to be anywhere to Contact the XR guys. I do think they’re swift enough to catch on to current events however - so there’s optimistic hope.
There is ‘something’ MKVToolNix V45.0 is doing in a remux that fixes whatever it is that’s freaking out Players on Planet Earth.
Here ends my technical involvement…
Labor, on the other hand, has just begun…
I haven’t had time to look at your sample file, but does this process fail if you don’t normalize/convert audio, but the rest of the process stays the same? In short, is this secretly an audio decoding problem that is manifesting itself with video playback issues? (It wouldn’t be the first one of those I’ve seen)
I’ve really been trying to keep what I have already, but that doesn’t seem possible.
If I don’t remux the original with MKVToolNix before it’s XR pass, nothing can save it.
My VLC won’t even play these out of the box.
Once the original is remuxed with MKVToolNix, VLC plays them as does everything else I have (that can play them).
MKVToolNix V45.0 is the cure, but you must apply it first.
Dammit.
There is good news and let’s hope it holds…
New items of this type - no longer have the issue.
Seems someone upgraded ffmeg ‘upstream’… I’m also not seeing ‘the issue’ when I ‘re-acquire’. Quiet remuxing upstream must be underway.
Repairs continue…
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Thanks for providing the solution. It was REALLY annoying.
I am having this same issue with Plex on my Sony Bravia 4K TV (Andriod TV). I try to play a HVEC Main 10 movie using Direct Play through the Plex App on my TV and it stutters so badly. And similar to, my first two options are ‘Convert Automatically’, which appear to transcode to a smoother 1080p version that freezes frame after a few seconds with audio and subtitle still continuing…weird, and ‘720p @ 2Mbps’.
To check if the problem was with the file itself, I played the movie using various methods and they all ran smoothly:
- VLC on PC
- Plex Media Server DNLA via Sony’s Video App (couldn’t load subtitles)
- Serviio DLNA via Sony’s Video App
- VLC App on Sony TV
Clearly the issue here is with the Plex Media Player as playing the video using other means worked.
This is the Roku thread - and we’ve determined the files are broken.
Fixing them is the immediate solution.
Any other solution Roku INC or Plex come up with pales in comparison to file repair… IMO.
This comment is probably the solution, but we’ll leave it in limbo to see what Roku does, or Plex, or both - but I’m not waiting around for a solution when there’s work to be done…
384 to go… (the number keeps increasing - as I find more of them - but I keep beating it back down… slowly).
This issue was solved today when I completed ‘repairs’ on about 1300 of the offending files.
A remux doesn’t sound like much - until you do it 1300 times.
At least it’s over.
@ljunkie gets an honorable mention for good effort when the problem, technically, wasn’t his to fix.
Just bought a Roku TV and have this issue as well for many hevc main 10 files. Thankfully they play just fine on my main TV via an Nvidia Shield. Gonna be a pain to fix all these files.
Make sure you read this thread carefully - starting here:
If you do have some of these files dated in their metadata BEFORE 5/4/2020 they will need to be repaired. Dated AFTER 5/4/2020 and they do not need repair.
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Anybody know of a way to replicate @JuiceWSA’s workflow on Linux? I can remux with MKVToolNix, but Xmedia Recode is not available. This stutter is obnoxious!
ToolNix is what you want - that’ll fix 'em right up, but they have to be the original.
That was my issue - XR hosed 'em all down and I had to… reacquire.
It was painful.
Just drag 10 at a time over and drop 'em on ToolNix - find the ‘All Tabs’ action figure in the Multiplexer header and away you go.
@JuiceWSA Thank you. So if I’ve run the file through mkvtoolnix already and the stuttering persists, perhaps I’m running into a separate issue? FWIW the source material was already mkv, not mp4 like yours.
You have to use V45.0.0
Previous version don’t cut it and you may mess 'em up - like I did.
I’m not sure about V45…
$ mkvmerge --version
mkvmerge v19.0.0 ('Brave Captain') 64-bit
