troyhough 57 Posted December 5, 2020 Author Share Posted December 5, 2020 3 hours ago, vdatanet said: Try to put the moov atom at the beginning of the file. https://sanjeev-pandey.medium.com/understanding-the-mpeg-4-moov-atom-pseudo-streaming-in-mp4-93935e1b9e9a https://www.ezs3.com/public/Checking_Metadata_or_Moov_Atom_Location.cfm You can try to repack the mp4 file to mkv. If file plays fine, the issue is in the container @vdatanetVLC plays all of these problematic files smooth as butter. Do you still suggest doing the moov atom hack and repack??? Link to comment Share on other sites More sharing options...
Luke 37009 Posted December 5, 2020 Share Posted December 5, 2020 Yes. Link to comment Share on other sites More sharing options...
vdatanet 1549 Posted December 5, 2020 Share Posted December 5, 2020 5 hours ago, troyhough said: @vdatanetVLC plays all of these problematic files smooth as butter. Do you still suggest doing the moov atom hack and repack??? VLC is a different player, but Exoplayer has this requirement: Just test with one problematic file to see if it helps. I am not saying that this is the problem, but it is a hypothesis. If you don't need the MP4 format, just repack it into MKV, it's a very fast process with no quality loss. Link to comment Share on other sites More sharing options...
troyhough 57 Posted December 5, 2020 Author Share Posted December 5, 2020 9 hours ago, vdatanet said: VLC is a different player, but Exoplayer has this requirement: Just test with one problematic file to see if it helps. I am not saying that this is the problem, but it is a hypothesis. If you don't need the MP4 format, just repack it into MKV, it's a very fast process with no quality loss. Reminder: all files play flawlessly on my Nvidia Shield 2017's. Also, I just followed your link, downloaded rndware Metadata Mover and ran it on one of the problem HEVC files. It made no difference when trying to play it again after the modification. 2 Link to comment Share on other sites More sharing options...
thelanranger 11 Posted December 6, 2020 Share Posted December 6, 2020 I have actually just seen this issue but with a different platform entirely. This can be duplicated on XBox One S with VLC player and Kodi from the app store AND you should be able to duplicate it on a PC with the same app store apps! I noticed that, specifically, the VLC app store app on the PC had the exact same file play issue that the XBox One had on a specific file but the desktop version of VLC player did not have the issue. Makes me wonder if everyone is using the same bunch of shared code that has a flaw? Is emby/vlc/kodi all using some shared block of GNU code for HEVC that has a bug related to floating point in the frame rate? Or is this a floating point hardware bug? My affected file was actually 0.000001 fps different that your listed issues. Link to comment Share on other sites More sharing options...
troyhough 57 Posted December 7, 2020 Author Share Posted December 7, 2020 For fun I installed VLC from the Microsoft Store on my Windows 10 PC. I tried playing a couple of the Problematic 23.976215 HEVC files and they played back perfectly with that too. (the regular Windows exe VLC player also plays back perfectly as noted previously). Link to comment Share on other sites More sharing options...
thelanranger 11 Posted December 7, 2020 Share Posted December 7, 2020 Do you have an Xbox? I did not have an issue with the desktop version playing the file but my slower computer clearly "took more effort" to play the one with 29.976215. I don't really have any way to measure the load on the Gpu of a system like a cpu. 1 Link to comment Share on other sites More sharing options...
troyhough 57 Posted December 7, 2020 Author Share Posted December 7, 2020 (edited) On 12/7/2020 at 11:48 AM, thelanranger said: Do you have an Xbox? I did not have an issue with the desktop version playing the file but my slower computer clearly "took more effort" to play the one with 29.976215. I don't really have any way to measure the load on the Gpu of a system like a cpu. I don't have an Xbox sorry. @Lukeand boys we definitely have pinpointed a specific issue here, it's just a matter of figuring out what exactly is going on and get it fixed! Edited December 10, 2020 by troyhough Link to comment Share on other sites More sharing options...
Luke 37009 Posted December 10, 2020 Share Posted December 10, 2020 Yea we're still trying to chase it down. Thanks. 1 Link to comment Share on other sites More sharing options...
troyhough 57 Posted July 30, 2021 Author Share Posted July 30, 2021 This problem persists. x265 HEVC files @ 23.976215 FPS are choppy and do not play back smoothly. It's super annoying and has been a problem for a long time now! 1 Link to comment Share on other sites More sharing options...
troyhough 57 Posted July 30, 2021 Author Share Posted July 30, 2021 19 minutes ago, troyhough said: This problem persists. x265 HEVC files @ 23.976215 FPS are choppy and do not play back smoothly. It's super annoying and has been a problem for a long time now! Edit: Could be a problem with just Pixel devices? I can't confirm or deny this. Link to comment Share on other sites More sharing options...
Carlo 4330 Posted July 30, 2021 Share Posted July 30, 2021 Are these HEVC files 8 or 10 bit? Link to comment Share on other sites More sharing options...
troyhough 57 Posted July 30, 2021 Author Share Posted July 30, 2021 7 minutes ago, cayars said: Are these HEVC files 8 or 10 bit? 10 bit Link to comment Share on other sites More sharing options...
Carlo 4330 Posted July 30, 2021 Share Posted July 30, 2021 Have you check the specs on your phone for H.265/10 bit? A lot of phones don't handle 10 bit well unless things are in specific formats which vary by device. Is it a 1080 or 4K video? Link to comment Share on other sites More sharing options...
troyhough 57 Posted July 31, 2021 Author Share Posted July 31, 2021 7 hours ago, cayars said: Have you check the specs on your phone for H.265/10 bit? A lot of phones don't handle 10 bit well unless things are in specific formats which vary by device. Is it a 1080 or 4K video? I haven't checked the specs, however Emby on the same phone Direct Plays x265 24 FPS, 23.976025 FPS, and 23.976023 FPS flawlessly. The only prob is with 23.976215 FPS. They are all 1080. Link to comment Share on other sites More sharing options...
troyhough 57 Posted July 31, 2021 Author Share Posted July 31, 2021 (edited) Just for fun, I enabled External Video Players, then chose VLC as the player in Emby and the files play back perfectly. Not sure what says if anything. Edited July 31, 2021 by troyhough 1 Link to comment Share on other sites More sharing options...
thelanranger 11 Posted August 1, 2021 Share Posted August 1, 2021 There's definitely a few weird issues with 4K movies that are device specific. Since emby uses the media player of the device (like on Xbox one) 4k is a bit of a trial. The only real way I've been able to get reliable playback is to make sure that audio pass through is enabled and that the receiver (or in your case the player in your phone) will naively decode the audio stream. If your audio source needs to be transcoded then the video is choppy even though the video direct plays. Link to comment Share on other sites More sharing options...
vdatanet 1549 Posted August 1, 2021 Share Posted August 1, 2021 1 minute ago, thelanranger said: If your audio source needs to be transcoded then the video is choppy even though the video direct plays. This is a known issue. Link to comment Share on other sites More sharing options...
troyhough 57 Posted August 2, 2021 Author Share Posted August 2, 2021 I will try and test this on my neighbor's S20 and see if it does the same thing. I'll report back the results. Link to comment Share on other sites More sharing options...
vdatanet 1549 Posted August 2, 2021 Share Posted August 2, 2021 15 minutes ago, troyhough said: I will try and test this on my neighbor's S20 and see if it does the same thing. I'll report back the results. It should work. I have an S10 and get direct play (neither video nor audio is converted) of HEVC HDR DTS content. Link to comment Share on other sites More sharing options...
troyhough 57 Posted August 2, 2021 Author Share Posted August 2, 2021 1 minute ago, vdatanet said: It should work. I have an S10 and get direct play (neither video nor audio is converted) of HEVC HDR DTS content. Are all/any of your files 23.976215 FPS? Those are the ONLY ones I have a problem with! Link to comment Share on other sites More sharing options...
vdatanet 1549 Posted August 2, 2021 Share Posted August 2, 2021 (edited) 27 minutes ago, troyhough said: Are all/any of your files 23.976215 FPS? Those are the ONLY ones I have a problem with! No, I don't have any file at 23.976215, only at 23.976: Edited August 2, 2021 by vdatanet Link to comment Share on other sites More sharing options...
troyhough 57 Posted August 2, 2021 Author Share Posted August 2, 2021 47 minutes ago, vdatanet said: No, I don't have any file at 23.976215, only at 23.976: As noted previously, I can direct play x265 24 FPS, 23.976025 FPS, and 23.976023 FPS flawlessly. The only prob is with 23.976215 FPS. All are 1080. If you want I can PM you a test file and you can see if your phone will Direct Play it smoothly with the Emby Android app. Link to comment Share on other sites More sharing options...
vdatanet 1549 Posted August 2, 2021 Share Posted August 2, 2021 3 minutes ago, troyhough said: As noted previously, I can direct play x265 24 FPS, 23.976025 FPS, and 23.976023 FPS flawlessly. The only prob is with 23.976215 FPS. All are 1080. If you want I can PM you a test file and you can see if your phone will Direct Play it smoothly with the Emby Android app. If you don't mind sending me a sample, I'll take a look. Link to comment Share on other sites More sharing options...
troyhough 57 Posted August 2, 2021 Author Share Posted August 2, 2021 @vdatanet Pm sent. Thanks Link to comment Share on other sites More sharing options...
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