jaldmead 0 Posted January 29, 2018 Share Posted January 29, 2018 Hi Devs, I am using Emby on a Nvidia shield, and Emby server on a synology NAS. It plays all videos perfectly EXCEPT 4K content, which all have corruption. I have tested he videos in KODI on the shield and they play fine, so I'm pretty sure nothing is wrong with the actual file. The file is "Inception" I sent a debug log approx 10 minutes ago (7:22 Australian eastern standard time) The name of he Emby see on the server is andrew who is the only user. The corruption takes the form of either flashing bottom half screen or pixelated so much that nothing can be seen, or both at the same time. I have tested 4 lots of 4K videos and all have the same problem Appreciate your help Andrew Link to comment Share on other sites More sharing options...
ebr 14929 Posted January 29, 2018 Share Posted January 29, 2018 What happens if you lower the bitrate setting in the app? Link to comment Share on other sites More sharing options...
jaldmead 0 Posted January 30, 2018 Author Share Posted January 30, 2018 Hi Well I tried that and all hell broke loose. My synology was went to 80% ram utilisation and was extremely slow. Envy would not play anything a it said there was a network problem. I did this twice to test it and it happened both time, I then switched it back to the auto setting, played the 4k video again, which would now play but of course the corruption was back, but the memory stayed under 50% and I could watch any non 4K videos Regards, Andrew Link to comment Share on other sites More sharing options...
jaldmead 0 Posted January 30, 2018 Author Share Posted January 30, 2018 After more searching I suspect it is transcoding the PGS subs, which my nas would not be capable of doing. I am not watching he movie with subs on though, so how can I turn this of to ensure it does not transcode for subs Thanks Andrew Link to comment Share on other sites More sharing options...
ebr 14929 Posted January 30, 2018 Share Posted January 30, 2018 After more searching I suspect it is transcoding the PGS subs, which my nas would not be capable of doing. I am not watching he movie with subs on though, so how can I turn this of to ensure it does not transcode for subs Thanks Andrew There is a button on the OSD that allows you to select (or turn off) subtitles. It looks like a little text bubble. Link to comment Share on other sites More sharing options...
jaldmead 0 Posted January 31, 2018 Author Share Posted January 31, 2018 Ah OK I had already been doing that. When the RAM usage went crazy lowering the bit rate I assume that triggered a transcode, This puts us back to the fact that Emby won't play my 4k files. Can you check my log from the app that I sent, to see if you can find any problems Thanks Andrew Link to comment Share on other sites More sharing options...
CBers 6771 Posted January 31, 2018 Share Posted January 31, 2018 This puts us back to the fact that Emby won't play my 4k files. @@jaldmead I don't have any issues playing 4K videos via the Emby ATV app, so could you provide a sample of one of the movies that you're having an issue with please, and I will test it on my Shield TV. Link to comment Share on other sites More sharing options...
ebr 14929 Posted January 31, 2018 Share Posted January 31, 2018 I also cannot reproduce this so a sample would be helpful. In the log you sent, the item was transcoding but only down to 80mb/s. There were no obvious issues on the app side. Link to comment Share on other sites More sharing options...
jaldmead 0 Posted February 1, 2018 Author Share Posted February 1, 2018 Hi Hmmm im not sure how to take a sample out of a 53gb file, but I will google it and have go on the weekend Andrew Link to comment Share on other sites More sharing options...
CBers 6771 Posted February 1, 2018 Share Posted February 1, 2018 Hi Hmmm im not sure how to take a sample out of a 53gb file, but I will google it and have go on the weekend Andrew I think mkvmerge offers that option, but @@FrostByte might know better. Link to comment Share on other sites More sharing options...
FrostByte 5052 Posted February 1, 2018 Share Posted February 1, 2018 Mkvtoolnix can split a file 1 Link to comment Share on other sites More sharing options...
jaldmead 0 Posted February 3, 2018 Author Share Posted February 3, 2018 (edited) Hi I have uploaded a sample. Hope this helps you troubleshoot ThanksAndrew Inception.zip Edited February 3, 2018 by jaldmead Link to comment Share on other sites More sharing options...
CBers 6771 Posted February 3, 2018 Share Posted February 3, 2018 Hi I have uploaded a sample. Hope this helps you troubleshoot Thanks Andrew Just downloaded it and although it's only 7s long, it played perfectly. Link to comment Share on other sites More sharing options...
ebr 14929 Posted February 3, 2018 Share Posted February 3, 2018 Just downloaded it and although it's only 7s long, it played perfectly. For me too... Link to comment Share on other sites More sharing options...
jaldmead 0 Posted February 5, 2018 Author Share Posted February 5, 2018 (edited) Hi Thanks for trying. I gave the sample another go and all I got was a corrupted image. I had a thought about copying the file , since it's small sample now directly over to the shields internal memory and then getting Emby to play direct from there Is that possible or does Emby need a server to reference Andrew Edited February 5, 2018 by jaldmead Link to comment Share on other sites More sharing options...
ebr 14929 Posted February 5, 2018 Share Posted February 5, 2018 Hi Thanks for trying. I gave the sample another go and all I got was a corrupted image. I had a thought about copying the file , since it's small sample now directly over to the shields internal memory and then getting Emby to play direct from there Is that possible or does Emby need a server to reference Andrew Not sure I understand what you are requesting there but I don't think it is relevant to your problem. It sounds like it may be an issue with the display or connections involved since neither I nor Cbers could reproduce it. Link to comment Share on other sites More sharing options...
jaldmead 0 Posted February 6, 2018 Author Share Posted February 6, 2018 Hi, I think I am getting to the root of the problem now. I setup Emby server on my Mac and then played the same file (which resides on a synology was box), and guess what, it plays fine on my Mac. I then tried playing the same file but from the Nvidia shield and the corruption was back. So this should mean that the Emby server is not the issue, the file is not the issue, but the Emby app on the shield is at fault, or at least is the lowest common demoninator Let me know what you think Andrew Link to comment Share on other sites More sharing options...
ebr 14929 Posted February 6, 2018 Share Posted February 6, 2018 This is still what I think : It sounds like it may be an issue with the display or connections involved since neither I nor Cbers could reproduce it. CBers and I both played the sample on a Shield with the same app without issue. Have you tried changing connections or cables? Are you sure your HDMI cable is rated for 4K? Link to comment Share on other sites More sharing options...
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