[foxbat121]

I'm struggling with 4k video on my setup.  Almost all of the files I've tried aren't working at all, displaying a frame a second or so.  I tested some 4k demo files and I'm getting the same results.  I thought I would share and see if it is just me, or if it's just a hardware limitation.  Initially I thought it was network bandwidth, but switching to ethernet didn't improve anything.

I tested 3 4k demos, the AVC file (Dubai) played the best, but I still got a buffering circle every 20-30 seconds or so.  The other two HEVC files barely played at all.  With my other files I played around with audio streams thinking it might be an audio issue, but I didn't have any luck there either.

I should also mention that my TV is 1080p, not sure if that is having an effect or not.

Thanks,
flips22

The details of the files I tested are below:
https://www.demolandia.net/downloads.html?id=57878
sony-pictures-4k-movies1-(www.demolandia.net).mkv

Video
ID                                       : 1
Format                                   : HEVC
Format/Info                              : High Efficiency Video Coding
Format profile                           : Main [email protected]@high
HDR format                               : SMPTE ST 2086, HDR10 compatible
Codec ID                                 : V_MPEGH/ISO/HEVC
Duration                                 : 1 min 3 s
Bit rate                                 : 43.0 Mb/s


https://www.demolandia.net/downloads.html?id=64388452

dolby-chameleon-lossless-uhd-(www.demolandia.net).m2ts

Video #1
ID                                       : 4113 (0x1011)
Menu ID                                  : 1 (0x1)
Format                                   : HEVC
Format/Info                              : High Efficiency Video Coding
Format profile                           : Main [email protected]@high
HDR format                               : SMPTE ST 2086, HDR10 compatible
Codec ID                                 : 36
Duration                                 : 1 min 2 s
Width                                    : 3 840 pixels
Height                                   : 2 160 pixels
Display aspect ratio                     : 16:9
Frame rate                               : 23.976 (24000/1001) FPS
Color space                              : YUV
Chroma subsampling                       : 4:2:0 (Type 2)
Bit depth                                : 10 bits




https://www.demolandia.net/downloads.html?id=60876578

samsung-uhd-dubai-(www.demolandia.net).mkv

Video
ID                                       : 1
Format                                   : AVC
Format/Info                              : Advanced Video Codec
Format profile                           : [email protected]
Format settings                          : CABAC / 4 Ref Frames
Format settings, CABAC                   : Yes
Format settings, Reference frames        : 4 frames
Codec ID                                 : V_MPEG4/ISO/AVC
Duration                                 : 1 min 46 s
Bit rate                                 : 43.0 Mb/s

I encountered the exact same thing, only on 1080p TVs. All 4K files (UHD rips) play just fine on 4K TVs even if I set output resolution to 1080p. But on any 1080p TV, this is exactly what happened. Something isn't right. Among my 4K rips, only one file played fine without issues. I can't think of any difference between that file and other files.

Did you ever figure this out or is the only hope that this will be fixed in Android 11?

I don't think it has anything to do with Android OS. Something weird is going on but I have up and didn't try to use it with my 2K TVs anymore because I found even cheaper options for those 2K TVs, the Dynalink Android TV box.