bradford 5 Posted January 26, 2018 Share Posted January 26, 2018 (edited) I am running Emby server on Debian 8, client on Nvidia Shield TV. I am watching some high def 1080 streams that are direct play supported (Star Trek The Next Generation in the logs). They skip/stutter pretty badly. I tried a BDRip, 47 Ronin, same problem. If I force transcoding, for example, at 15Mb, it works great. I've attached all relevant logs that I can think of. I have gigabit ethernet from server to client, so I doubt it's a speed issue, although the shield has no easy way to test bandwidth. I am monitoring the server, and all resources indicate it isn't bottlenecked there, afaik. server log.txt server log 2.txt Star Trek Remux.txt Star Trek transcode.txt Edited January 26, 2018 by bradford Link to comment Share on other sites More sharing options...
Luke 37112 Posted January 26, 2018 Share Posted January 26, 2018 hi, have you tried to direct play something of lower bitrate? Link to comment Share on other sites More sharing options...
jl94x4 14 Posted January 26, 2018 Share Posted January 26, 2018 I get the same issue. Link to comment Share on other sites More sharing options...
Luke 37112 Posted January 26, 2018 Share Posted January 26, 2018 @@jl94x4 can you please go over an example? thanks ! Link to comment Share on other sites More sharing options...
CBers 6771 Posted January 26, 2018 Share Posted January 26, 2018 Is the Shield TV connected via WiFi or ethernet? What playback info is displayed in the Android TV app's OSD during playback, in particular the playback method and player in use? As an aside, my Emby server runs on Windows, but I don't have any issues playing 4K streams in the Android TV app on my Shield TV. Link to comment Share on other sites More sharing options...
ebr 14929 Posted January 26, 2018 Share Posted January 26, 2018 Is the Shield TV connected via WiFi or ethernet? This... Link to comment Share on other sites More sharing options...
jl94x4 14 Posted January 26, 2018 Share Posted January 26, 2018 (edited) Alright. I've narrowed down to what's causing the issue. I have both framerate switching and fine tune framerate turned on in Nvidia Shield Emby app settings, When I play a file thats 23.97 hz Emby app sets it to 24.00, if i go into the quality settings and choose the freshrate manually to 23.97 the stuttering/slow motion playback stops.. This is the same with 59.94hz files, it defaults to 60, causing slow mo/stutter, manually changing this fixes it but its not ideal to do this everytime we play a file. I believe the problem is a bug in the app which makes framerate switching and fine tuning framerate not work correctly. I've tried the file with both settings off (it sets every file to the display refresh rate) which also introduces stuttering because the TV refresh rate doesn't match the file. I have a Plex server with the same files I tested with, and Plex displays them all playing at the refresh rate of the file (auto refresh rate switching works). Edited January 26, 2018 by jl94x4 Link to comment Share on other sites More sharing options...
ebr 14929 Posted January 26, 2018 Share Posted January 26, 2018 Can you please play one of these with the auto switching set that way and then send a log from the app? Thanks. Link to comment Share on other sites More sharing options...
jl94x4 14 Posted January 26, 2018 Share Posted January 26, 2018 Can you please play one of these with the auto switching set that way and then send a log from the app? Thanks. Report sent What happened? As described here 23:07PM (UK Time) Username on the server: JL94x4 Link to comment Share on other sites More sharing options...
ebr 14929 Posted January 27, 2018 Share Posted January 27, 2018 Report sent What happened? As described here 23:07PM (UK Time) Username on the server: JL94x4 Thanks but I want to make sure I'm looking at the proper report. I don't see that user at that time. Instead I see a user called, ahem, Plexified . is that it? 1 Link to comment Share on other sites More sharing options...
jl94x4 14 Posted January 28, 2018 Share Posted January 28, 2018 Thanks but I want to make sure I'm looking at the proper report. I don't see that user at that time. Instead I see a user called, ahem, Plexified . is that it? Yes, thats it. I thought you needed my login username, but yes, my server user is Plexified. thanks Link to comment Share on other sites More sharing options...
ebr 14929 Posted January 28, 2018 Share Posted January 28, 2018 Okay, then the issue here is that the actual frame rate of the video is 23.809... Not being able to find that exact rate on your display causes us to round up to 24 and select that one. I may be able to rename the option to "closest" instead of exact and then try and pick 23.97 in that case. Link to comment Share on other sites More sharing options...
bradford 5 Posted January 28, 2018 Author Share Posted January 28, 2018 hi, have you tried to direct play something of lower bitrate? Yes, lower bitrate content plays back fine. The sources that have trouble go between 20 and 60Mbps Is the Shield TV connected via WiFi or ethernet? What playback info is displayed in the Android TV app's OSD during playback, in particular the playback method and player in use? As an aside, my Emby server runs on Windows, but I don't have any issues playing 4K streams in the Android TV app on my Shield TV. Gigabit ethernet. Playback method doesn't say direct, I think it remuxes it. The audio source for TNG is FLAC, maybe that forces a remux? I don't know how to display the player in use or the playback method, but I haven't changed anything in settings from their defaults. I should clarify about the problem - stuttering is probably the wrong word, but it pauses regularly as if to buffer. It will pause for about 5 seconds, play for 5 seconds, pause again, and so on. It obviously looks like a network issue, but I looked at network traffic during that and no network interfaces on the server were saturated. Perhaps disk I/O was hit so much by another process that it couldn't serve up the file from disk fast enough, I didn't think to look at that... and the strange thing is, now the content is playing back smoothly. Link to comment Share on other sites More sharing options...
Luke 37112 Posted January 28, 2018 Share Posted January 28, 2018 Yea it does sound network related, thanks. Link to comment Share on other sites More sharing options...
ebr 14929 Posted January 31, 2018 Share Posted January 31, 2018 Okay, then the issue here is that the actual frame rate of the video is 23.809... Not being able to find that exact rate on your display causes us to round up to 24 and select that one. I may be able to rename the option to "closest" instead of exact and then try and pick 23.97 in that case. Please test this video with the odd refresh rate with the latest beta version (1.5.38) and see if it picks the rate that works better. Link to comment Share on other sites More sharing options...
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