gleep52 15 Posted October 14, 2018 Share Posted October 14, 2018 I have a few dozen movies in UHD right now - some work, and some do not work in HDR with Emby on my Shield TV. If I play them back on an HTPC with Emby Theater, they all have HDR as expected (If they are HDR rips). Why do some NOT playback in HDR while others do? I tested them in Plex on my Shield TV and they work in HDR in Plex just like in Emby Theater on my HTPC. I went through each one of my UHD films and tested playback on my Shield and am including all the log files generated during that time. The Titles I've tested that DO work with HDR are these: The Avengers The Avengers - Age of Ultron The Black Panther Cars 3 Deadpool 2 Early Man The Fast and the Furious GIJoe The Rise of Cobra Ghost in the Shell Ghost in the Shell 2 Hereditary Interstellar Journey to Space Jurassic Park III Solo - A Star Wars Story The Last Reef Jurassic Park II Mission Impossible Mission Impossible - Ghost Protocol Mission Impossible - Rogue Nation Mission Impossible II Mission Impossible III Pacific Rim - Uprising Planet Earth II (whichever is there right now) Predator Punisher War Zone Rampage Saving Private Ryan Sicario - Day of the Soldado Star Wars - The Last Jedi Thor: Ragnarok X-Men X-Men: The Last Stand All the other files in the playback log that are not in this list are not triggering HDR but should be (with the exception of a few rips that do not have HDR and are in fact SDR remuxes. Attached are the log files. Iron Man 2 did not playback with HDR and for some reason started a transcode session so I included those ffmpeg files as well. It does not trigger a transcode from Emby Theater or Plex on my Shield. Thanks! embyserver.txt ffmpeg-directstream-a880f8ca-181b-4ca3-8d27-5663d7dafd01_1.txt ffmpeg-remux-5b6d44fb-8089-4f04-a8b3-618e429e9975_1.txt ffmpeg-transcode-5f009903-4086-47d1-8ae1-008decc63100_1.txt ffmpeg-transcode-9bffdf53-e609-4c55-9c94-2f4253f975ff_1.txt ffmpeg-transcode-f381a12c-b645-49ca-b0a3-db611879616c_1.txt ffmpeg-transcode-ff06d8a1-7393-4592-98c3-31e56c7e059d_1.txt Link to comment Share on other sites More sharing options...
Guest asrequested Posted October 15, 2018 Share Posted October 15, 2018 Choose the AC3 audio, not FLAC Link to comment Share on other sites More sharing options...
gleep52 15 Posted October 15, 2018 Author Share Posted October 15, 2018 A few I just double checked by trying again is 12 strong, iron man, and batman v superman - one of those doesn't have ANY other audio options, the speaker doesn't even show up in the emby player to pick something else. The other two I tried are dolby 5.1 - not even TRUEHD or something. I checked a few that DO work, and they all had truehd7.1 as the default track. I tried changing one of them to the default 2 channel descriptive audio channel and even that didn't result in HDR, so I don't think it's necessarily FLAC tracks that's the issue here. Link to comment Share on other sites More sharing options...
ebr 14904 Posted October 15, 2018 Share Posted October 15, 2018 Probably this? Problem with HDR with a 4K UHD movie (Emby vs Plex) Link to comment Share on other sites More sharing options...
gleep52 15 Posted October 15, 2018 Author Share Posted October 15, 2018 What I learned from that thread is that it is still unresolved - is that right? How does Plex work on my Shield with HDR but Emby doesn’t if it’s a nvidia problem? If it were an nvidia problem, shouldn’t the playback of the same files exhibit similar problems regardless of the app used for playback? I’m not sure what “exoplayer” is, not how to use an external player... is that what I need to do? I’m quite happy with Emby Theater on my htpc since it is gorogeous and a bit brighter than the shield, not to mention lightning fast. But it would be much easier to have my shield do everything since I don’t have an htpc on all my TVs in the house. Link to comment Share on other sites More sharing options...
CBers 6766 Posted October 15, 2018 Share Posted October 15, 2018 The question should be, why is Emby transcoding the content. It's well known that ffmpeg does not transcode HDR content, due to limitations, so Direct Streaming is the only way. I have many 4K HDR movies that play just fine on my Shield TV. Also, exoplayer is the default player on the Shield TV. 1 Link to comment Share on other sites More sharing options...
gleep52 15 Posted October 15, 2018 Author Share Posted October 15, 2018 Emby isn't transcoding the content - that was just one movie - all the rest are direct streaming. Link to comment Share on other sites More sharing options...
Guest asrequested Posted October 15, 2018 Share Posted October 15, 2018 (edited) It wouldn't surprise me if Plex is using a different decoder, in ExoPlayer. That would be why it works, there. As I understand it, they have a custom build. The issue seems to be centered around ffmpeg. In all instances with 4k HDR problems, ffmpeg is involved. So far, there's an issue with server remux, cuda in mpv, and with ExoPlayer in ATV. They all use ffmpeg. In mpv I can use different decoders and they all work. In ATV, if you use MX as an external player, it will work. So there is definitely an issue with cuda, but I'm starting to think ffmpeg also has a hand in this. But when direct played with a different decoder, it should play correctly. Edited October 15, 2018 by Doofus Link to comment Share on other sites More sharing options...
gleep52 15 Posted October 15, 2018 Author Share Posted October 15, 2018 So what needs to happen for me to use Emby on my Shield and still get HDR on my titles that are direct streaming? Link to comment Share on other sites More sharing options...
Guest asrequested Posted October 15, 2018 Share Posted October 15, 2018 I updated my last post Link to comment Share on other sites More sharing options...
ebr 14904 Posted October 15, 2018 Share Posted October 15, 2018 Do we know what specific types of content or specific attributes cause this problem? It isn't just "HDR doesn't work" because it does work for a lot of content. Link to comment Share on other sites More sharing options...
gleep52 15 Posted October 15, 2018 Author Share Posted October 15, 2018 That's why I posted all my logs, in hopes someone can decipher the data... The way I see HDR working is - the movie starts playback and within a second or two, the color jumps to life. It seems that SOME of my files don't jump to life and my projector reports SDR mode only. It is bt.2020, but SDR still. I have not found a common link. I thought it might be audio related, but I can't find a common link in audio codecs that are stopping playback (using MediaInfo app to see the stats). So - how do I use a different decoder? Link to comment Share on other sites More sharing options...
Guest asrequested Posted October 15, 2018 Share Posted October 15, 2018 Do we know what specific types of content or specific attributes cause this problem? It isn't just "HDR doesn't work" because it does work for a lot of content. It seems to be how they are encoded (HEVC with HDR). Specifically what, I haven't figured out. Nvidia hasn't told me anything. If you can't get a different build of ExoPlayer, then maybe have an external player option specifically for 4k? I don't use cuda for anything in mpv, anymore. The updated cuda (nvdec), works. But nvdec uses ffmpeg's filters. CUDA doesn't. CUDA appears to have it's own way of decoding. Unrelated to this, cuda solves another problem in Theater. So cuda seems to be it's own animal. Link to comment Share on other sites More sharing options...
agentp1 1 Posted October 15, 2018 Share Posted October 15, 2018 I have the exact same issue on shield. I'm non tech so won't be sharing any logs etc (beyond me ). What I can say is that if i use plex, I get hdr 100% of time, same content via emby, won't normally work. The content that does work on emby seems to be truehd audio.. not sure if that helps. Sent from my SM-G965F using Tapatalk Link to comment Share on other sites More sharing options...
Guest asrequested Posted October 15, 2018 Share Posted October 15, 2018 My guess is that new algorithms are being used that aren't properly supported. So when decoded, it doesn't know what to do with the metadata. CUDA is a hardware decoder, as opposed to a decoder that uses the hardware. I think it's in the firmware, so you can't futz with it. D3D is windows, dxva2 is directX etc. So ffmpeg can't work around it. This I think, would be why nvdec and nvenc were created. They both use ffmpeg. Link to comment Share on other sites More sharing options...
gleep52 15 Posted October 16, 2018 Author Share Posted October 16, 2018 @@ebr So what is the resolution here? Is this a bug that can/will be corrected? Or is this not something on the radar for support? Link to comment Share on other sites More sharing options...
ebr 14904 Posted October 16, 2018 Share Posted October 16, 2018 We simply don't know at this point. We will have to investigate more. Link to comment Share on other sites More sharing options...
Guest asrequested Posted October 16, 2018 Share Posted October 16, 2018 Can you not fork it and build your own? I'm sure there's a dependency you can grab from somewhere, that would provide the tweak you need. When I get enough time, I'm gonna do that with mpv. The community has some tweaks of their own. But maybe because ExoPlayer is Android, there are less options? Link to comment Share on other sites More sharing options...
gleep52 15 Posted October 16, 2018 Author Share Posted October 16, 2018 We simply don't know at this point. We will have to investigate more. Let me know if I can provide any insight or testing of a beta app. Can you not fork it and build your own? I'm sure there's a dependency you can grab from somewhere, that would provide the tweak you need. When I get enough time, I'm gonna do that with mpv. The community has some tweaks of their own. But maybe because ExoPlayer is Android, there are less options? I can fetch log files - but the only forking I do has to do with meals of food. I'm not a coder in the slightest. Link to comment Share on other sites More sharing options...
Guest asrequested Posted October 16, 2018 Share Posted October 16, 2018 Let me know if I can provide any insight or testing of a beta app. I can fetch log files - but the only forking I do has to do with meals of food. I'm not a coder in the slightest. Lol...that was directed at ebr Link to comment Share on other sites More sharing options...
gleep52 15 Posted October 16, 2018 Author Share Posted October 16, 2018 Lol...that was directed at ebr *blushes* Link to comment Share on other sites More sharing options...
griffindodd 15 Posted October 16, 2018 Share Posted October 16, 2018 (edited) Reading this thread is confusing. Is there an option on Emby Android builds to use a different player or decoder? I have over 200 HDR rips and none of them seem to work playing on Emby for either my Shield or my 4k Fire TV - both on 4k HDR TVs. Kodi on both devices works fine as it's not attempting to transcode, so is it not using exoplayer? Edited October 16, 2018 by griffindodd 1 Link to comment Share on other sites More sharing options...
CBers 6766 Posted October 16, 2018 Share Posted October 16, 2018 Let me know if I can provide any insight or testing of a beta app. https://emby.media/community/index.php?/topic/24350-android-open-beta-testing/ 1 Link to comment Share on other sites More sharing options...
gleep52 15 Posted October 16, 2018 Author Share Posted October 16, 2018 https://emby.media/community/index.php?/topic/24350-android-open-beta-testing/ It says I'm a tester... not sure if I did this previously or not. How can I tell if I'm using the beta version? Link to comment Share on other sites More sharing options...
EODCrafter 179 Posted October 16, 2018 Share Posted October 16, 2018 (edited) It says I'm a tester... not sure if I did this previously or not. How can I tell if I'm using the beta version? Play something on the App and look at the server Panel....It will give you the Version..It's also on the Home Page of the App somewhere. Options >>>> App Settings show's Version on the Lower Right..... Edited October 16, 2018 by EODCrafter Link to comment Share on other sites More sharing options...
Recommended Posts
Create an account or sign in to comment
You need to be a member in order to leave a comment
Create an account
Sign up for a new account in our community. It's easy!
Register a new accountSign in
Already have an account? Sign in here.
Sign In Now