embysvr1 0 Posted September 14, 2019 Share Posted September 14, 2019 Greetings. I have been checking out the forums as a guest for quite some time now trying to find an answer to my problem. Either there isn't a direct answer or I am not understanding the answer when I find it so hopefully someone can answer my questions. I have my synology drive directly plugged into my modem. I have an emby server running on my synology drive and have multiple rokus set up throughout the house so that my family can access my emby movie library. I have my movie files best converted to play on roku devices. Most titles play perfectly in direct play in mkv dolby 5.1 format (especially the lower compressed mkv files). Occasionally once in a blue moon I will load up a 60-70gb 4k title( I don't have many because my smaller compressed 4k files look great and seem to play without a hitch most days)..lets say...project 4k83. In order to take advantage of the best quality of this work of art I have not done anything to it. My question is..why sometimes do I get a "loading" message during playback and choppy video for a few seconds? This doesn't happen a lot...maybe twice the entire time I'm watching the movie. Closing the app and replaying the video seems to fix this. Is this a bitrate being too high problem? How does direct play even work? Does it use my wifi speed/connection to disperse my movie throughout my network? I can't wrap my head around it. Thanks for taking time to address my issues. Link to comment Share on other sites More sharing options...
speechles 1917 Posted September 14, 2019 Share Posted September 14, 2019 (edited) The Roku only has 100Mbit ethernet. It isn't giga. To get faster throughput you must use the wifi (not ethernet) and use the 5 ghz band. Now try it and see if it gets any better. The AC wifi on a Roku tops out around 130Mbit/sec in a theoretical sense. The Emby Roku app lets you set the video quality bitrate as high as 110Mbit. That may solve the problem or your wifi strength may not be good enough to even do this. Until Roku gets with the program and puts out a device with gigabit (1000Mbit) ethernet speeds you will have these hiccups with 4K when the bitrate can be extreme. What is the "peak" bitrate that movie is encoded at? It might be higher than the Roku can ingest altogether if this is over 130Mbit/second. Roku needs to do better as their competitors are in this area and 4K is the new kid on the block. Edited September 14, 2019 by speechles Link to comment Share on other sites More sharing options...
embysvr1 0 Posted September 14, 2019 Author Share Posted September 14, 2019 I am using a Roku Smart TV over wifi to watch emby on my TV. It does detect both channels of my wifi siginal and I always have it connected to the 5ghz band. My Roku is showing a 56mbps download speed. I think I have 100mb down and 10 up. My rku TV is at the far side of the house away from my router but I do have an orbi mesh adapter plugged into my outlet making the signal in my room very strong. On most of my devices in my room I am getting my full upload/download speed. Signal strength is excellent on my Roku TV. Under stats for nerds in the emby beta app the video bitrate says 59.27. Is it just my roku not being able to access a constant speed to keep up with the stream? This isn't a huge problem. Like I said it only happens like twice the entire time I'm watching the movie. I'm just trying to figure out why it does it. Link to comment Share on other sites More sharing options...
ebr 14903 Posted September 14, 2019 Share Posted September 14, 2019 My Roku is showing a 56mbps download speed. ...Under stats for nerds in the emby beta app the video bitrate says 59.27. It seems that there is your answer, right there, no...? Link to comment Share on other sites More sharing options...
embysvr1 0 Posted September 14, 2019 Author Share Posted September 14, 2019 I dunno...is it...? That's what I came here to find out. So the bitrate of my movie along with the limit of my connection speed on the device is causing this error to occur..? Basically I need to encode lower bitrate movies or find a way to boost my wifi speed at the back of my house...? I wasn't sure what bitrate actually was and to what effect WiFi speed if any at all had to do with direct play. Link to comment Share on other sites More sharing options...
speechles 1917 Posted September 14, 2019 Share Posted September 14, 2019 (edited) You say the media is on your synology. But I am guessing your Emby server is not. This means data must flow from the synology to Emby server and then to your Roku. On 100Mbit this will break because in order to work the same bitrate must be sent from the synology to Emby server which at the same time needs that same bitrate to send from Emby server to your Roku to complete the chain. If the media is 59Mbit bitrate this will equate to a loss of 18Mbit (59x2 = 118-100=18) that must be accounted for somewhere. This is the buffering you see during high bitrate movement where the bitrate is actually using that full 59Mbit. I am guess the fact you are using AC Wifi on your Roku lets you burst speeds of the bitrate to it. But even with that burst you will still see loading/retrieving with plain ordinary ethernet. So you will definitely need gigabit network speed to get there. You might be able to eliminate the hiccups with a 1000Mbit(gigabit) router vs 100Mbit. That is likely your problem if you aren't using 1000Mbit/giga speeds on your internal network. Edited September 14, 2019 by speechles Link to comment Share on other sites More sharing options...
embysvr1 0 Posted September 14, 2019 Author Share Posted September 14, 2019 Emby server is running on my Synology directly plugged into my router via ethernet cord. All Roku WiFi devices are picking up the emby server over the network running on my Synology nas. Link to comment Share on other sites More sharing options...
speechles 1917 Posted September 14, 2019 Share Posted September 14, 2019 Emby server is running on my Synology directly plugged into my router via ethernet cord. All Roku WiFi devices are picking up the emby server over the network running on my Synology nas. It might be something on the router slowing down traffic. You should be able to get closer to 80Mbit/sec if it is just you on the network with your Roku. I can on mine and just using normal 100Mbit ethernet. It is a Roku TV you are using and those depend on the manufacturer how robust they are. Mine is a TCL TV 50s425. What codec is the 4K media giving you issues? Is this HEVC HDR10+? Link to comment Share on other sites More sharing options...
Luke 37007 Posted September 17, 2019 Share Posted September 17, 2019 @@embysvr1 can we please look at an example? Please attach the information requested in how to report a media playback issue. thanks ! Link to comment Share on other sites More sharing options...
embysvr1 0 Posted September 19, 2019 Author Share Posted September 19, 2019 Yeah it's hevc hdr10. I figured it out. I am not the only device on my network..there are many. The bitrate of the movie was just too high to play..I compressed it and it played flawlessly. I still don't understand the whole bitrate thing and how movies are direct played. Does it use bandwidth...? Will I run into problems when more than one person is direct playing at the same time on my server? Link to comment Share on other sites More sharing options...
Luke 37007 Posted September 19, 2019 Share Posted September 19, 2019 Yes, higher bitrates mean larger file sizes, and that will use more bandwidth. Please let us know if this helps. Thanks. Link to comment Share on other sites More sharing options...
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