I’m had tacked this to another thread because I thought I was having the same issue, but in my case it didn’t start until I upgraded to the May release. I realized posting to the end of a thread marked solved might not be the best choice, so I’m reposting.
I only have the problems with H.264 channels (I have MPEG2 channels that are fine), and only on my Vero 4K+ (the same channels that stutter on the 4K+ don’t have any problems on my Mac or Windows PC both running Kodi 18.2).
Recordings (either MPEG2 or H.264) are all fine. I’m using NextPVR as my backend.
Just FYI, I’ve tried some of the other fixes mentioned for stuttering video that involved setting bypass_prog or bypass_all to a different value, and that didn’t help. I’d like to stick on this version to help track the problem down, but over half my TV channels are unwatchable. This weekend I’ll probably have to revert to the older version (or start sleeping on the couch when my spouse gets mad at me), so my ability to assist after that might be limited.
I’m pretty sure I tried the refresh rate change, but I will check again when I get home (in Hawaii, so it’s still work time here). I’ll also generate a debug log from my Windows machine.
I have another topic open on the same issue. The only difference is that i’m using TVHeadend client.
I hope that this remark helps to narrow down the search for the cause of issue.
I noticed there were updates available today so I installed them. No change in my issue, although I didn’t necessarily expect a change, as it looks like the updates were VC1 related. A person can dream though.
@pkscout: Does this also happen if you disable timeshift on TVH?
Where is your timeshift storage path pointing to?
It looks to me that you watch timeshift instead of the live TV stream. Have you checked the setting at Settings->Live TV->Playback->Fallback framerate whether it is set to an appropriate value for your environment?
Could you also just temporarily try the TVheadend HTSP client as backend (just to see whether this issue is related to the used client)?
I’m using NextPVR as my back end. I tried all the various options for timeshifting and real time in the NPVR addon with no luck. Given that the video is fine if played from Kodi on Windows or OSX, I’m a little hesitant to go looking at NPVR for the issue. It seems like the common theme between my issue and @catalin211is that we’re both streaming H264 channels from a PVR backend. My MPEG2 ones are fine. And H264 was fine until the May update.
I set up a pi3B+ as TVheadend server with current OSMC staging und a TVheadend HTSP client on a Vero 4k. A twin DVB-C tuner (AVM DVB-C Wlan repeater) serves as TV adapter (sat->IP).
No way to reproduce the issue but the cable provider here only provides streams till
H.264, 50 fps but 1080 i instead 1080 p, Audio is AC3.
Sorry, running out of ideas for this. Here a screenshot how it is arriving at the Vero 4k:
It seems both you and @catalin211 have Adjust refresh rate set to Off with your GUIs at 60Hz. That can’t help, but I’ve reproduced that setup and I don’t get any stuttering or other issues. Try setting it to On start/stop.
@pkscout I setup NextPVR server on Win10 … quite cool implementation, really interesting for those want to run such stack permanently on Windows. After configuring a single DVB-C frequency on one of my AVM DVB-C tuners, I still can’t see any issue, even after long time running
Is there any chance that this is a network bandwidth issue between the Vero4k+ and your NextPVR server? Could you check that with iperf3?
I don’t know where your NextPVR server gets its data from but here the tuner’s data stream comes via ethernet LAN into the Win10 system and will be forwarded by NextPVR server using the same interface to the NextPVR client running on Vero, so this needs twice the bandwidth compared to playback of a recording from the Win10 system.
Here are the iperf results. I think you’ll agree the network isn’t likely to be the issue, and if it was the network I would have expected it to be a problem before the May update.
I’ve tried various settings with adjust display refresh, and none of them changed anything. In the system settings I did change the refresh rate to 50 and leave adjust display refresh off then it gets better. The stuttering happens less frequently (maybe once every 20 - 30 seconds instead of every 5 seconnds) and when it stutters it’s less of a stutter. But it’s definitely still there. The other thing I noticed is that in my case the channel is coming through as 1080p 60Hz. Everyone else trying stuff out seems to be at 50Hz. I’m trying to see if I can change the source to some other resolution or refresh rate and test with that.
I want to reiterate that this didn’t happen before the update and does not happen when playing back live tv on Kodi for Windows or Kodi for OSX.
@pkscout Just to be sure: You need to run iperf3 in reverse mode (option -R) otherwise you test the sending bandwidth from the Vero to the NextPVR server, only.
