Hi,
I have a few demos of 4k HVEC 10 bit HRD or Dolby videos. These are stored to a Synology NAS running Plex.
I have a client PC running OpenPHT. The CPU is a Core i3, 8G memory and a Nvidia GTX960 graphics card. The network is 1Gb with direct connection, not wireless. The network by the way is flawless, I can get 120MB/s file transfers on this machine and 60MB/s wirelessly if I choose to work wirelessly.
When I play these demos, there is a lot of stuttering. It will play for a few seconds, stop, some graphis might break up and then start again.
If I look at the performance of the PC I see core usage around 90-95%, network utilization around 1%. The NAS is running around 6% CPU usage.
If I look at the info in OpenPHT, the network is averaging about 18mb/s, no dropped frames, and the stream is DirectPlay.
So where is the bottle neck? Is it the graphics card? The CPU? OpenPHT?
I have a spare Socket 2100 motherboard and a 3.6GHz hexa core CPU (6800), that I could hook up but if the issue is the video card I would like to be sure.
Thanks for any suggestions
im assuming this is a windows+openpht machine
the issue will most likely be, your processor doesn’t have enough grunt to software decode it, unfortuantly openpht doesnt have hardware decoding sorted yet for 4K HVEC 10bit until in a future version it is rebased on the latest Kodi
Hi,
Ok.So is this an issue of Plex? I can copy the file down to my PC and using Windows 10 movie viewer it plays the video just fine and CPU usage is about 30% less. So it is actually the software decoding in Plex that is the bottle neck?
Thanks
its a issue of the openpht client on windows, the version of kodi it is based on, does not have hardware decoding for 4k 10bit
its not a issue with plex itself, simply the openpht client.
im not sure how PlexMediaPlayer deals with 4k 10bit hardware decoding, i would assume it does
It seems that I have the same issue - however, I have a Wetek Hub that has hardware decoding for 4K HEVC.
My Plex server is a 3.2ghz i5, 16GB, but the system is always idle when playing video - directplaying everything that I have, including 4k HEVC.
I posted in the 1.8 thread for this too, attached the log file - @tomb18 do you see the same in your logs ?
Narrowed it down to be a network issue after all, and have time to troubleshoot tonight.
The Plex Media Player does exactly the same thing. The web client will not play it at all.
But I am beginning to think that this may actually be a network issue or a NAS issue. I can copy a file to my NAS and it will copy at 120MB/s but copying it back to my PC it is at 15MB/s. That should still be adequate but there is something not right there. It’s not the PC disk system since a copy on the PC from one folder to another is instantaneous (SSD drive).
I’ll look at the logs…is there something in there that can help decipher the issues?
Thanks
Check my log, it has stuff like this in it;
08:44:38 T:545483751744 WARNING: CDVDMessageQueue(audio)::Get - asked for new data packet, with nothing available
08:44:38 T:545483751744 NOTICE: CDVDPlayerAudio::OutputPacket skipping a packets of duration 10
08:44:38 T:545483751744 NOTICE: Previous line repeats 9 times.
08:44:38 T:545483751744 WARNING: CDVDMessageQueue(audio)::Get - asked for new data packet, with nothing available
08:44:38 T:545483751744 NOTICE: CDVDPlayerAudio::OutputPacket skipping a packets of duration 10
08:44:38 T:545483751744 NOTICE: Previous line repeats 9 times.
08:44:38 T:545483751744 WARNING: CDVDMessageQueue(audio)::Get - asked for new data packet, with nothing available
08:44:38 T:545483751744 NOTICE: CDVDPlayerAudio::OutputPacket skipping a packets of duration 10
08:44:38 T:545483751744 NOTICE: Previous line repeats 15 times.
08:44:38 T:545483751744 WARNING: CDVDMessageQueue(audio)::Get - asked for new data packet, with nothing available
08:44:38 T:545483751744 NOTICE: CDVDPlayerAudio::OutputPacket skipping a packets of duration 10
08:44:38 T:545483751744 NOTICE: Previous line repeats 3 times.
08:44:38 T:545483751744 WARNING: CDVDMessageQueue(audio)::Get - asked for new data packet, with nothing available
08:44:38 T:545483751744 NOTICE: CDVDPlayerAudio::OutputPacket skipping a packets of duration 10
08:44:38 T:545483751744 NOTICE: Previous line repeats 6 times.
08:44:38 T:545483751744 WARNING: CDVDMessageQueue(audio)::Get - asked for new data packet, with nothing available
08:44:38 T:545483751744 NOTICE: CDVDPlayerAudio::OutputPacket skipping a packets of duration 10
I also can copy to my server at GB speeds, no problems, but there is something on my network that is causing problems with Plex.
Last week I created a seperate network for the Openpht box and server - it ran fine then - but had to revert back due to IPTV. I think that this is causing the issue.
What I am trying tonight - remove IPTV from network and connect that via ethernet over power adapter. Connect the Openpht box directly onto the server (seperate NIC and seperate IP’s).
Will report back
Hi,
Well I spent many hours here and I have come to a significant finding. I too had the same errors as above.
However…I decided to use PlexMediaPlayer (with the awful 2 rows of icons…) since I needed to see something unrelated.
Looking through the settings, I saw an option in Video for Hardware Decoding which was off.
I turned it on and lo and behold all my 4K content, HDR, Dolby vision everything now plays super fast including a Jellyfish demo with these specs:
4K, HEVC, 10Bit 400mb/s
Looking at the Plex info during playback, the network usage hit 581mb/s.
Yes! 581mb/s…the network is not the issue it was purely the hardware vs software decoding.
So I guess we need to wait for OpenPHT to support the hardware decoding.
Tom
I’ve done my part and I fixed it.
IPTV runs via powerline adapters.
Wetek Hub with Openpht runs via 1gb network.
No problems playing 4k HEVC files now !
Also, i’ve added these to the advancedsettings.xml;
<network>
<curlclienttimeout>30</curlclienttimeout>
<readbufferfactor>20</readbufferfactor>
</network>
I will revert back to original settings to see if it makes a difference.
I am also having a hard time playing 4K playback of HVEC 10 bit with Nvidia Shield tv plex client. The server is a Windows 10 PC. It plays the video fine on the server PC even using Plex. When trying to play it through the shield I get audio but no video. Any recommendations?
@Yohon55 said:
I am also having a hard time playing 4K playback of HVEC 10 bit with Nvidia Shield tv plex client. The server is a Windows 10 PC. It plays the video fine on the server PC even using Plex. When trying to play it through the shield I get audio but no video. Any recommendations?
this forum is for the openpht plex client, this is the right forum for a shield…
https://forums.plex.tv/categories/nvidia-shield
