muhfugen 5 Posted June 14, 2017 Share Posted June 14, 2017 (edited) I was wondering if there is anything which can be done to improve the performance of transcoding high bitrate 4K video? For instance I have a copy of the movie Fury with a 118 Mbps video stream, and it requires 16 cores from a pair of Xeon E5-2660 v2 CPUs (2.2Ghz 10 core) to transcode with the encoding preset set to ultrafast and constant quality factor set to 23. I used the Network tab of the Inspector pane in Firefox to download one of the .ts files Emby was sending my client, and was surprised to see it outputted a 4K video file even though the client's display is less than 4K. Is there a way to force it to output video at the same resolution as the client device, or even just a fixed resolution like 1080p? Edited June 14, 2017 by muhfugen Link to comment Share on other sites More sharing options...
Happy2Play 8296 Posted June 14, 2017 Share Posted June 14, 2017 Have you looked at the Playback options? Click user icon top right of browser, the Playback-Advanced (Max streaming bitrate). Link to comment Share on other sites More sharing options...
muhfugen 5 Posted June 14, 2017 Author Share Posted June 14, 2017 I gave that a try and sent it to 1080p 25Mbps, but it is still sending 4K content to the client even after relaunching Firefox. Link to comment Share on other sites More sharing options...
muhfugen 5 Posted June 14, 2017 Author Share Posted June 14, 2017 (edited) I tried it with a couple more 4K files and they're sending 4K video to the client as well even though my users playback settings are set to: Edited June 15, 2017 by muhfugen Link to comment Share on other sites More sharing options...
Luke 37099 Posted June 15, 2017 Share Posted June 15, 2017 @@muhfugen, why do you feel that it's still sending 4K? How exactly did you perform this test? Link to comment Share on other sites More sharing options...
muhfugen 5 Posted June 15, 2017 Author Share Posted June 15, 2017 @@Luke, I used the Network tab of the Inspector pane in Firefox to view what URLs the Emby web app was downloading, then I downloaded one of the URLs manually, and opened it in VLC: Link to comment Share on other sites More sharing options...
muhfugen 5 Posted June 15, 2017 Author Share Posted June 15, 2017 (edited) Also I cant help but think this may be related but strangely I've noticed that everytime I log in my user's playback preferences keep on getting reset back to Auto. If I change it back to 1080p 25Mbps it still serves me with 4K content. Edited June 15, 2017 by muhfugen Link to comment Share on other sites More sharing options...
Luke 37099 Posted June 15, 2017 Share Posted June 15, 2017 You configured the bitrate setting in the very same firefox browser on the very same device? Link to comment Share on other sites More sharing options...
muhfugen 5 Posted June 15, 2017 Author Share Posted June 15, 2017 @@Luke, please disregard my previous post about it not remembering the bit rate. I forgot that private browsing mode was enabled. I've since disabled it and it does remember the settings now, albeit it does not honor them. It still serves 4K client even though my account is configured for 1080p 25Mbps. Yes on the same browser on the same device, the entire time I've only been using Firefox on a single device. Link to comment Share on other sites More sharing options...
Luke 37099 Posted June 15, 2017 Share Posted June 15, 2017 I just tested firefox and i don't see any issues with it honoring the bitrate setting. did you try changing the quality directly in the video player after playback starts? you can also do it that way. Link to comment Share on other sites More sharing options...
muhfugen 5 Posted June 15, 2017 Author Share Posted June 15, 2017 @@Luke, here is a video of it happening - https://my.mixtape.moe/egqtuc.mov Also if I click the gear icon while it is playing it, it reports 1080p 25Mbps but as you can see in the video it is really 4K Link to comment Share on other sites More sharing options...
muhfugen 5 Posted June 15, 2017 Author Share Posted June 15, 2017 @@Luke here is a second video where I click the gear icon while it is playing and it incorrectly reports the resolution https://my.mixtape.moe/zaeiff.mov Link to comment Share on other sites More sharing options...
Luke 37099 Posted June 15, 2017 Share Posted June 15, 2017 Can you please attach the emby server and transcoding log? you can learn how to do that here: https://emby.media/community/index.php?/topic/739-how-to-report-a-problem/ thanks. Link to comment Share on other sites More sharing options...
muhfugen 5 Posted June 15, 2017 Author Share Posted June 15, 2017 @@Luke, here you go https://my.mixtape.moe/cgcdtt.zip Link to comment Share on other sites More sharing options...
Luke 37099 Posted June 15, 2017 Share Posted June 15, 2017 Since you are on 3.2.19 can you update to 3.2.20, and then if the issue persists, please attach a new log based on that? thanks. Link to comment Share on other sites More sharing options...
muhfugen 5 Posted June 15, 2017 Author Share Posted June 15, 2017 @@Luke, Sure. If you dont mind i'll do that tomorrow. Link to comment Share on other sites More sharing options...
Luke 37099 Posted June 15, 2017 Share Posted June 15, 2017 to be honest i have a feeling it is the browser that is the issue though. we save all of these app settings in local storage of the browser, and if i had to guess you have some configuration beyond private mode that is preventing data from being stored. Link to comment Share on other sites More sharing options...
muhfugen 5 Posted June 15, 2017 Author Share Posted June 15, 2017 (edited) @@Luke, it is remembering the setting now that I disabled private browsing mode, just not honoring it. In case it matters the Firefox plugins are uBlock Origin (ad blocker), NoScript (javascript blocker), MEGA (cloud storage), h264ify (force h264 on youtube) and FireShot (save webpages as images). I also just tried it on Safari which I pretty much never use and which has no plugins installed and the behavior is the same - https://my.mixtape.moe/oebfty.mov Edited June 15, 2017 by muhfugen Link to comment Share on other sites More sharing options...
Luke 37099 Posted June 15, 2017 Share Posted June 15, 2017 Ok then please update to 3.2.20, and then if the issue persists, please attach a new log based on that? thanks. Link to comment Share on other sites More sharing options...
muhfugen 5 Posted June 15, 2017 Author Share Posted June 15, 2017 Sure, i'll get it to you tomorrow. Link to comment Share on other sites More sharing options...
Luke 37099 Posted June 15, 2017 Share Posted June 15, 2017 Thanks. Link to comment Share on other sites More sharing options...
zigzagtshirt 55 Posted June 29, 2017 Share Posted June 29, 2017 I was wondering if there is anything which can be done to improve the performance of transcoding high bitrate 4K video? For instance I have a copy of the movie Fury with a 118 Mbps video stream, and it requires 16 cores from a pair of Xeon E5-2660 v2 CPUs (2.2Ghz 10 core) to transcode with the encoding preset set to ultrafast and constant quality factor set to 23. I used the Network tab of the Inspector pane in Firefox to download one of the .ts files Emby was sending my client, and was surprised to see it outputted a 4K video file even though the client's display is less than 4K. Is there a way to force it to output video at the same resolution as the client device, or even just a fixed resolution like 1080p? Any updates on this? Haven't tried to reproduce the issue, but I'm curious to know if it's still happening. Link to comment Share on other sites More sharing options...
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