Niklos 2 Posted January 19, 2020 Share Posted January 19, 2020 (edited) Hello everyone. First of all, I am french, and I am sorry for my poor english. I installed Emby on my synology NAS in a docker container. I am using the image : linuxserver/emby:latest For playback, I am using an LG OLED C9 with the emby theater app I found on the LG Store. When I play movies, I get some stuttering (is that the right word ? I mean, it is like the image is stopping then playing, then stopping etc... ) I heard that it may happen when the file is playing at, like 24p and the TV tries to show 23.976p, or something like that. Any idea on how to solve that ? Is there anyway to "tell" emby to play the movie at 24p or 23.976p ? OR do you have another idea of why I get this problem ? Thanks everyone ! edit : BTW, I am not bottlenecking the CPU or RAM or network. Edited January 19, 2020 by Niklos Link to comment Share on other sites More sharing options...
Luke 37046 Posted January 19, 2020 Share Posted January 19, 2020 Hi there, can we please look at an example? Please attach the information requested in how to report a media playback issue. Thanks ! @@SamES Link to comment Share on other sites More sharing options...
Niklos 2 Posted January 20, 2020 Author Share Posted January 20, 2020 (edited) Thanks for your answer. I will try to film the TV on the phone to show you the issue. Don't know if the phone will be good enough to capture it though... edit : and I will provide the logs ! Edited January 20, 2020 by Niklos Link to comment Share on other sites More sharing options...
SamES 890 Posted January 20, 2020 Share Posted January 20, 2020 Can you please provide the media info for the file you are trying to play? You can find this at the bottom of the details screen for the movie on the server. When you are playing, does the server dashboard say whether it is DirectPlay, streaming or transcoding? Attaching the server log will help. Finally, are you using a wireless or wired network connection on the TV? Thanks Link to comment Share on other sites More sharing options...
Niklos 2 Posted January 20, 2020 Author Share Posted January 20, 2020 (edited) When you are playing, does the server dashboard say whether it is DirectPlay, streaming or transcoding? Finally, are you using a wireless or wired network connection on the TV? If I recall correctly, it is "DirectPlay". I will check this evening. I am using a wired gigabyte connexion from the server upto the Ethernet to USB adapter that is connected on the TV (unfortunatly, LG C9 has a 100mbits connexion... So silly. So I put a USB2 to Gigabit adapter to have more like 400mbits connexion, I tried it and it definitly is better than the inboard 100mbit ethernet card). For the other questions, I need to double check so I will give you the answers this evening ! Edited January 20, 2020 by Niklos Link to comment Share on other sites More sharing options...
Niklos 2 Posted January 20, 2020 Author Share Posted January 20, 2020 (edited) Can you please provide the media info for the file you are trying to play? You can find this at the bottom of the details screen for the movie on the server. => See below When you are playing, does the server dashboard say whether it is DirectPlay, streaming or transcoding? => Direct Play Attaching the server log will help. => Done : logs.tgz Finally, are you using a wireless or wired network connection on the TV? => 1Gb wired to USB2 Thanks Hi there, can we please look at an example? Please attach the information requested in how to report a media playback issue. Thanks ! @@SamES Unfortunatly, I can't. I tried to but I would need a better camera to record this. If I pause the movie to take a picture, the image is perfect. (edit : I made a video where you can see the problem but... well, recording a video on the TV with a phone is as relevent as I wish it would be... Anyways, I upload that to Youtube and add it to the post as soon as it is done edit : link to the video : I don't think it cans help but... who knows !?)media info : Vidéo Title4K HEVCCodecHEVC ProfilMain 10 Niveau153 Résolution3840x2160 Ratio d'aspect original16:9 AnamorphiqueNo EntrelacéNo Images par seconde23,976 Débit67 467 kbps Gamme vidéoHDR Couleurs primairesbt2020 Espace colorimétriquebt2020nc Transfert de couleursmpte2084 Format de pixelyuv420p10le Images de référence1 Audio TitleEnglish TRUEHD 7.1 (Default)LangueEnglish CodecTRUEHD Répartition7.1 Chaînes8 ch Débit échantillon48 000 Hz Profondeur en Bit24 bit DéfautYes Audio TitleEnglish Dolby Digital 5.1LangueEnglish CodecAC3 Répartition5.1 Chaînes6 ch Débit640 kbps Débit échantillon48 000 Hz DéfautNo Audio TitleEnglish Dolby Digital stereoLangueEnglish CodecAC3 Répartitionstereo Chaînes2 ch Débit320 kbps Débit échantillon48 000 Hz DéfautNo Audio TitleFrench Dolby Digital+ 8 chLangueFrench CodecEAC3 Chaînes8 ch Débit échantillon48 000 Hz DéfautNo Audio TitleFrench Dolby Digital 5.1LangueFrench CodecAC3 Répartition5.1 Chaînes6 ch Débit576 kbps Débit échantillon48 000 Hz DéfautNo Audio TitleFrench Dolby Digital 5.1LangueFrench CodecAC3 Répartition5.1 Chaînes6 ch Débit640 kbps Débit échantillon48 000 Hz DéfautNo Audio TitleSpanish Dolby Digital+ 8 chLangueSpanish CodecEAC3 Chaînes8 ch Débit échantillon48 000 Hz DéfautNo Audio TitleSpanish Dolby Digital 5.1LangueSpanish CodecAC3 Répartition5.1 Chaînes6 ch Débit576 kbps Débit échantillon48 000 Hz DéfautNo Audio TitleItalian Dolby Digital+ 8 chLangueItalian CodecEAC3 Chaînes8 ch Débit échantillon48 000 Hz DéfautNo Audio TitleItalian Dolby Digital 5.1LangueItalian CodecAC3 Répartition5.1 Chaînes6 ch Débit576 kbps Débit échantillon48 000 Hz DéfautNo Audio TitleGerman Dolby Digital+ 8 chLangueGerman CodecEAC3 Chaînes8 ch Débit échantillon48 000 Hz DéfautNo Audio TitleGerman Dolby Digital 5.1LangueGerman CodecAC3 Répartition5.1 Chaînes6 ch Débit576 kbps Débit échantillon48 000 Hz DéfautNo Sous-titre TitleEnglish (Default PGSSUB)LangueEnglish CodecPGSSUB DéfautYes ForcéNo ExterneNo Sous-titre TitleFrench (PGSSUB)LangueFrench CodecPGSSUB DéfautNo ForcéNo ExterneNo Sous-titre TitleFrench (PGSSUB)LangueFrench CodecPGSSUB DéfautNo ForcéNo ExterneNo Sous-titre TitleSpanish (PGSSUB)LangueSpanish CodecPGSSUB DéfautNo ForcéNo ExterneNo Sous-titre TitleItalian (PGSSUB)LangueItalian CodecPGSSUB DéfautNo ForcéNo ExterneNo Sous-titre TitleGerman (PGSSUB)LangueGerman CodecPGSSUB DéfautNo ForcéNo ExterneNo Sous-titre TitleNorwegian (PGSSUB)LangueNorwegian CodecPGSSUB DéfautNo ForcéNo ExterneNo Sous-titre TitleSwedish (PGSSUB)LangueSwedish CodecPGSSUB DéfautNo ForcéNo ExterneNo Sous-titre TitleFrench (PGSSUB)LangueFrench CodecPGSSUB DéfautNo ForcéNo ExterneNo Sous-titre TitleFrench (PGSSUB)LangueFrench CodecPGSSUB DéfautNo ForcéNo ExterneNo Sous-titre TitleSpanish (PGSSUB)LangueSpanish CodecPGSSUB DéfautNo ForcéNo ExterneNo Sous-titre TitleItalian (PGSSUB)LangueItalian CodecPGSSUB DéfautNo ForcéNo ExterneNo Sous-titre TitleGerman (PGSSUB)LangueGerman CodecPGSSUB DéfautNo ForcéNo ExterneNo Conteneurmkv Chemin/movies/a voir/4K/MyMovie.mkv Taille57067 MB Thanks everyone. I hope I did not forget anything ! edit : I managed a way to show the problem : In this case, I don't know if it comes from the TV, my recording or YT by whatever, I have the exact same problem on traveling scene only. If something moves on the screen : no problem. If the whole image is moving, I get this problem. Edited January 20, 2020 by Niklos Link to comment Share on other sites More sharing options...
Luke 37046 Posted January 21, 2020 Share Posted January 21, 2020 Are you able to lower the in app quality setting to have it transcode, can your server handle that? Link to comment Share on other sites More sharing options...
SamES 890 Posted January 21, 2020 Share Posted January 21, 2020 Are you playing the TrueHD track or the Dolby Digital track? If you play a one of these files on the YouTube app on the tv, do you get the same issue? I feel like this is a TV picture. As per this post, do you have TrueMotion on or off? Does the tv have the latest firmware? https://www.google.com.au/amp/s/amp.reddit.com/r/OLED/comments/907w6e/lg_b7_stutter_on_panning_scenes/ Link to comment Share on other sites More sharing options...
Niklos 2 Posted January 21, 2020 Author Share Posted January 21, 2020 (edited) Are you able to lower the in app quality setting to have it transcode, can your server handle that? I am going to try. We'll see. But the server CPU is only an Intel Atom C3538... Are you playing the TrueHD track or the Dolby Digital track? ==> DD track as there is no TrueHD for this movie in my main language. And I have a 2.1 setup anyways... And only a stereo amp If you play a one of these files on the YouTube app on the tv, do you get the same issue? ==> I don't understand the question. Do you mean that you want me to try to play a 4k video from youtube on the TV ? I did it a couple time and I did not feel like there was any problem. But I can try again with a video with a traveling scene. I feel like this is a TV picture. As per this post, do you have TrueMotion on or off? Does the tv have the latest firmware? ==> I think I disabled TrueMotion but I need to doublecheck. It has the latest firmeware for sure. https://www.google.com.au/amp/s/amp.reddit.com/r/OLED/comments/907w6e/lg_b7_stutter_on_panning_scenes/ Edited January 21, 2020 by Niklos Link to comment Share on other sites More sharing options...
paulsalter 84 Posted January 21, 2020 Share Posted January 21, 2020 What frame rate is used in your country? I am in the UK and if i try to play something using a 23.97 I get the same issue Content that is 25 works perfectly (looking it up, this appears standard accros Europe) Link to comment Share on other sites More sharing options...
Niklos 2 Posted January 21, 2020 Author Share Posted January 21, 2020 I thought about that problem at the first place (I talk about it on my first post). But I don't know... According to emby, My movie is @23,976fps. I don't know how to sync that on the TV. I don't know how the TV is playing it (24p ? 25p ? 119,88p ?). I have no clue ! Link to comment Share on other sites More sharing options...
SamES 890 Posted January 21, 2020 Share Posted January 21, 2020 If you play a one of these files on the YouTube app on the tv, do you get the same issue? ==> I don't understand the question. Do you mean that you want me to try to play a 4k video from youtube on the TV ? I did it a couple time and I did not feel like there was any problem. But I can try again with a video with a traveling scene. Yes, that is what I mean, try to play a 4k video from youtube on the TV Read about stutter in these articles. It sounds like your issue, so there may be some tips in there to improve it https://www.rtings.com/tv/reviews/lg/c9-oled https://www.rtings.com/tv/reviews/lg/c9-oled/settings#motion-interpolation C9 ranks fairly low in these test : https://www.rtings.com/tv/tests/motion/stutter Link to comment Share on other sites More sharing options...
Niklos 2 Posted January 21, 2020 Author Share Posted January 21, 2020 SamES, you as right... It is an OLED issue and not an Emby issue. I can enable "true motion" on the TV but then I get some pixelisation... Anyways... Not an emby problem but an OLED problem ! Thanks everyone for the help ! 1 Link to comment Share on other sites More sharing options...
SamES 890 Posted January 21, 2020 Share Posted January 21, 2020 No problem, that's why we're here. Thanks for confirming the issue. Link to comment Share on other sites More sharing options...
Niklos 2 Posted January 22, 2020 Author Share Posted January 22, 2020 I always prefere to give a feedback when I ask for a problem. BTW, here is another feedback : So the problems comes from OLED technology. The best way I found to have something good (not to much stutering AND not to much pixelisation) is to enable true motion (that does some pixelisation on fast scene) on the lowest setting : "smooth" + enable the "real cinema" setting. 1 Link to comment Share on other sites More sharing options...
Luke 37046 Posted January 22, 2020 Share Posted January 22, 2020 I didn't know that. Thanks for the info. Link to comment Share on other sites More sharing options...
Niklos 2 Posted January 22, 2020 Author Share Posted January 22, 2020 You are welcome ! I am glade I could help ! Link to comment Share on other sites More sharing options...
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