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  • Im running into problems w/ streaming some videos over 2160p...

2160p on h265 and h264 60fps seems to run fine on all the videos i've tested.
However when trying to playback 2700p i get strong pixelated video (https://i.imgur.com/7KTGgsQ.jpg).

"h265_90fps_2700p" immediately switches back to "h264_60fps_1920p" upon clicking aswell.

That all - with one exception; which is weird to me...
https://www.sexlikereal.com/scenes/blue-haired-beauty-5813
plays just fine at h264_60fps_3840p! and only switches back to 3840p when trying to click even higher 6400p. No pixelation here.

PC: i7-7700k
GTX 1080ti Xtreme Edition
32GB RAM

SLR Speedtest id: 9837
Latency 43.3ms
Streaming speed 73.9 Mbps
Parallel streaming speed 94.7 Mbps

pronex69

When you get those black squares playing on PC/Mac, it means it's running (decoding) on the CPU, not the hardware decoder of your GPU.
press ctrl+shift+esc and go to performance tab. (Windows)

Did you also install LAV or k-Lite?

      I'm having the same issue. It cycles through all the different resolutions and then defaults to H264 at 60FPS when streaming. I'm running a 2080 Super so it's not a card problem. I tried re-installing LAV Filters and the HVEC codec from the Microsoft Store. I also tried installing K-Lite full and that did not work either. Offline videos are playing fine.

      Did you guys set a backend video decoding in LAV to CUVID? (not covid)
      just a sanity check

        Rakly3 thanks for the reply. I've installed LAV but got no clue how to configure it. is there a guide or something?

          pronex69 Seems ok. Now fire up the video and make sure "Direct Show" in enabled. In your GPU usage you should see a load on video decoding unit

              Hi I followed the instructions. It still doesn't work for me unfortunately, I did set LAV filters to NVIDIA CUVID. No luck. And for some reason offline files (5k and 6K) are now also stuttering. 4K files are still playing fine at 90 fps.

              When I stream, it cycles through the different resolution options and refuses to let me use H265 (auto-defaults to H264 and 60fps)

              Rakly3 gpu is sitting at ~60% and cpu 100% usage with NVIDIA Cuvid selected in LAV

                Have you tried to use DXVA2 (native) as hardware decoder in LAV filters and switch of Direct Show slider in Deo or SLR?
                That's my settings and playback of up to 8k just work fine with a GTX1070. With 8k I have gpu video decoder usage of ~90 and cpu 10-20%

                Philip I now also tried to download 90fps videos (I used the 90fps filter slider to find them) and see strange behaviour:
                I tried the JVR videos and there if I click at the download button for the 90fps file nothing happens. Example: https://www.sexlikereal.com/scenes/slutty-new-boss-encourages-her-employee-with-a-different-way-11395
                Then I found a video from VRP where download of the 90fps file is possible: https://www.sexlikereal.com/scenes/stuff-my-stockings-9316
                But the download speed is horrible. I only get 135Kbit/s!! Firefox download window says 11 days left to download. On all other files the download speed goes up the max speed of my internet connection (50Mbit/s)

                Are the 90fps files not stored any more on the CDN backend servers but on some slow backup servers? Can it be the same for streaming so that Deo or SLR falls back to some reachable files?

                  Philip CUVID doesn't support these encoding formats if I'm not mistaken. Should use DX native if possible, otherwise copyback.

                  Also, just in case. Your other monitors attached to your PC matter!
                  Two 4K monitors at 60Hz is already an 8K 60|120hz load on the card.

                    Thanks for all the help!

                    I switched to DXVA2 Native. Offline videos (6K) now play at 90fps with no issues or stuttering. However, I still can't get streaming videos to play properly. They used to play just fine at 90fps. Now it defaults to H264 and 60fps and my computer gets really loud.

                    Here is everything I have tried so far:
                    1. Installed K-Lite (this uninstalled my previously installed LAV Filters but then re-installed as part of K-Lite).
                    2. Went into the Codec Tweak Tool > General: Fixes, checkmark all available options. Apply & close. > Miscellaneous: Various Tweaks. checked all. Win7DSFilterTweaker: Preferred decoders: set H.26x and mpg related to LAV.

                    This didn't work and started impacting offline files. So:
                    1. Uninstalled K-Lite and LAV filters
                    2. Uninstalled SteamVr and SLR app.
                    3. Re-installed just LAV filters and set it to DXVA2 Native (I tried all the other options too but this one is the only option that plays 6K offline files smoothly).

                    Streaming files still don't play properly. I'm connected to a 1440p monitor but just to confirm that isn't the issue, I unplugged it after launching SLR. Still no luck on the streaming front.

                      mobiwan83 When you unplugged your monitor, did you even get an image on your HMD? (out of curiosity)

                      Have you tried fiddling with these settings?

                      I don't know what this "alternative" is, only that it makes evrything a lot worse, but 🤷

                        I think I found it. Spent quite some time on this so I hope my findings are correct.

                        Seems like the problematic files are using software parameters. They all have a secondary format.
                        ie main@L6.1@High

                        • WMF: Windows Media Foundation
                        • WMP: Windows Media Player

                        When disabling WMF for mp4 , the videos (obviously) don't work. In either Movies & TV or WMP.
                        Turning WMF on, Movies & TV plays the files just fine, HW + CPU
                        WMP however can barely play the videos. No HW and god knows what's happening to the CPU; It doesn't look pretty.

                        Likely issue:
                        Local files SLR player does whatever Movies & TV is doing. 👌
                        Streaming SLR player falls back to whatever WMP is doing.👎
                        Lower resolution are probably not an issue and could vary from system to system(?)
                        Videos without secondary parameters work just fine. ie High@L6

                        NOTE: Movies & TV doesn't allow streaming from custom URL's. The app has recently had a big update to compete with Netflix and Prime video, maybe prior to this update it was still possible to use custom URL's.
                        These problem files coincidentally are the same of which WMP doesn't keep an index and doesn't list on DLNA.

                        Suggestion, Uninstall windows update🤷 or try a fresh windows installation without installing the latest update.

                        Hi - thanks. So in summary, the latest Windows Update is causing the problem?

                        I'm not clear how to roll back to a previous version. When you say a fresh Windows installation... that I can do... but I don't know what you mean by "without installing the latest update". Do you mean the latest update of Windows or the latest update of Movies & TV app? Would uninstalling Movies and TV work?

                        I'm not clear what exactly I should do.

                        Appreciate the help. And for context, I'm using a Windows Mixed Reality Headset (using Steam VR)

                          mobiwan83

                          So in summary, the latest Windows Update is causing the problem?

                          It's not definitive, who knows there is a fix for it. Or it's something totally unrelated to what I said.
                          These are just my finding from testing.

                          Uninstalling Movies & TV isn't going to work I think. SLR uses the same setting/files as Movies & TV, but it's not dependent on the app afaik.

                          Windows 10 also grabs updates from the internet while it's installing. I have no idea which updates it does and does not. Probably security patches and drivers, I don't know about the content patches.

                            Hi

                            Issue is fixed! Here is what I did:

                            1. Clean install of Windows (removed all files).
                            2. Did all Windows updates
                            3. Re-installed SteamVR, Mixed Reality and SLR

                            At this point, nothing was streaming or playing (as expected since I did not have any codecs).

                            1. Installed LAV Filters (not K-Lite). Set LAV Filters to DXVA (copy back).

                            At this point local files were playing great but I was seeing the same issue with streaming. Other options in LAV did not give me 90+ FPS (e.g. CUVID)

                            1. Installed HVEC codec from Windows Store.

                            2. Set Direct Show "on" in SLR app settings

                            Now Streaming is also working great (H265 at 90+ FPS).

                            I suspect the clean install rolled back something.