1 Topic by NoZart (edited by NoZart 22-05-2026 13:35:08)

Topic: SVP not picking up Plex all of a sudden.

I keep SVP updated (4.7.0.302 atm) and have updates DISABLED on Plex for windows to keep it from overwriting the mpv libraries all the time.

I also keep my geforce drivers updated (596.49)

Today, SVP shows "no active playback" when i play videos in Plex for windows.

I did:
copy libmpv-2.dll from the SVP4/mpv64 directory to the plex directory.
copy mpv-2.dll from the SVP4/mpv64 directory to the plex directory.
alternatively i tested with the old mpv-2dll that used to work (from 2022)

Confirmed the presence of the entries to PATH and PYTHONPATH

confirmed the mpv.conf in appdata to have the three lines as provided in the tutorial.

when i open videos with mpv itself, it works.

what am i missing?

Re: SVP not picking up Plex all of a sudden.

> what am i missing?

the log

Re: SVP not picking up Plex all of a sudden.

damn, i have been and idiot. lol.
never occurred to me to look at the log. 

19:39:29.140 [i]: Main: starting up SVP 4 Pro [4.7.0.302]... 
19:39:29.141 [i]: Main: args: none
19:39:29.141 [i]: Main: working dir is C:\Program Files (x86)\SVP 4\
19:39:29.141 [i]: Main: data dir set to C:\Users\alber\AppData\Roaming\SVP4\
19:39:29.142 [i]: Settings: loading main.cfg OK
19:39:29.142 [i]: Settings: loading ui.cfg OK
19:39:29.142 [i]: Settings: loading frc.cfg OK
19:39:29.143 [i]: Settings: loading profiles.cfg OK
19:39:29.143 [i]: Settings: loading lights.cfg OK
19:39:29.143 [i]: Main: using Qt 6.9.2 (x86_64-little_endian-llp64 shared (dynamic) release build; by MSVC 2022)
19:39:29.144 [i]: Main: device scale is 1.25
19:39:29.144 [i]: Main: using Fusion style
19:39:29.144 [i]: Main: system locale is [de-at]
19:39:29.151 [i]: Main: preferred language is [en-latn-us]
19:39:29.152 [i]: Main: setting language file to en.qm...
19:39:29.174 [i]: Main: collecting system information...
19:39:29.189 [i]: Main: module 'plugins64/svpflow1.dll': 4.5.0.205
19:39:29.204 [i]: Main: module 'plugins64/svpflow2.dll': 4.6.0.274
19:39:29.206 [i]: Main: module 'plugins64/svpflow1_vs.dll': 4.5.0.205
19:39:29.207 [i]: Main: module 'plugins64/svpflow2_vs.dll': 4.6.0.274
19:39:29.227 [i]: Main: VLC filter (64 bit): 1.1.0.305
19:39:29.228 [i]: Main: running OpenCL info...
19:39:29.243 [i]: OS: Windows 11 [10.0.26200]
19:39:29.245 [i]: CPU: Intel Core i7-14700KF [base frequency 3400 MHz, 28 threads]
19:39:29.245 [i]: Video: registry info - NVIDIA GeForce RTX 4090
19:39:29.246 [i]: Video: reading OpenCL info...
19:39:29.277 [i]: Video: 1 GPU OpenCL device(s) on NVIDIA CUDA [OpenCL 3.0 CUDA 13.2.82] (NVIDIA Corporation)
19:39:29.278 [i]: Video 1: NVIDIA GeForce RTX 4090 (NVIDIA Corporation, ver.596.49) [gpuID=11]: OK
19:39:29.278 [i]: Video 1: may support NV Optical Flow and RIFE/TensorRT (Compute capability: 8.9)
19:39:29.278 [i]: Video: reading Vulkan info...
19:39:29.477 [i]: Vulkan 0: NVIDIA GeForce RTX 4090 (+)
19:39:29.478 [i]: Memory:  32551  MB total,  21696 MB free
19:39:29.479 [i]: System: finding network settings...
19:39:29.872 [i]: Power: AC is ON [1]
19:39:29.986 [i]: Settings: loading custom.cfg OK
19:39:30.001 [i]: Screens: updating information, 2 screen(s) found
19:39:30.018 [i]: Main: preparing video profiles...
19:39:30.208 [i]: Main: preparing performance graphs...
19:39:30.217 [W]: Control: failed to register shortcut Meta+Alt+K
19:39:30.267 [i]: Main: preparing ffdshow...
19:39:30.267 [i]: ffdshow: can't find 64-bit installation
19:39:30.267 [i]: Main: not using ffdshow
19:39:30.267 [i]: Main: preparing AviSynthFilter (AVSF)...
19:39:30.309 [i]: AVSF: found 64-bit version 1.4.8.0 [C:\Program Files (x86)\SVP 4\avsf\avisynth_filter_64.ax]
19:39:30.309 [i]: Main: preparing mpv...
19:39:30.328 [i]: VLC: installed Vapoursynth plugin: 1.1.0.305
19:39:30.328 [i]: Main: preparing remote control...
19:39:30.329 [i]: RemoteControl: started
19:39:30.329 [i]: Main: preparing main menu...
19:39:30.385 [i]: Main: loading extensions...
19:39:30.431 [i]: Extensions: found svpcast 1.5.0.311 ...
19:39:30.434 [i]: Settings: loading cast.cfg OK
19:39:30.442 [W]: Control: failed to register shortcut Meta+Ctrl+S
19:39:30.446 [i]: Streaming: Web UI listening on http://10.0.0.122:9900
19:39:30.475 [i]: Extensions: found svptube 2.4.0.305 ...
19:39:30.515 [i]: Settings: loading tube.cfg OK
19:39:30.528 [i]: Tube: initializing yt_dlp...
19:39:30.546 [i]: Main: initialization completed in 1384 ms, but still waiting for the screens measurement...
19:39:30.587 [i]: Updates: checking now...
19:39:31.346 [i]: Tube: yt_dlp ready
19:39:32.885 [i]: Performance: quick estimation = 1676 (previous value was 1681)
19:39:34.161 [i]: Screens: screen 1 - 3840x2160 @119.980 Hz [measured], x1.3 [60 DPI]
19:39:34.163 [i]: Screens: screen 2 - 1920x1080 @59.942 Hz [measured], x1.5 [95 DPI]
19:39:34.163 [i]: Screens: primary screen is 1
19:42:10.650 [i]: VideoPlayer: mpv [Plex.exe] connected, waiting for the video info...
19:42:16.162 [i]: VideoPlayer: mpv v0.39.0-637-gd87113fd-dirty /via 'mpvpipe'
19:42:17.156 [i]: Media: video looks like some kind of stream
19:42:17.156 [i]: Media: video 1920x1080 [PAR 1.000] at 23.976 fps (via video player)
19:42:17.156 [i]: Media: codec type is H.264 / AVC / MPEG-4 AVC / MPEG-4 part 10
19:42:17.160 [i]: Playback: starting up...
19:42:17.163 [i]: Playback [61618459]: Frame server (64-bit) C:\Program Files\VapourSynth\core\vapoursynth.dll
19:42:17.164 [i]: Playback [61618459]: resulting video frame 1920x1080
19:42:17.164 [i]: Playback [61618459]: 2 acceptible profiles, best is 'RIFE AI engine' [90]
19:42:17.182 [i]: Playback [61618459]: enabled while video is paused
19:42:17.186 [i]: Playback [61618459]: playing at 119.88 [23.976 *5/1] 
19:42:17.226 [E]: Playback [61618459]: VS - Could not initialize VapourSynth scripting.
19:42:27.832 [i]: Playback [61618459]: deleted
19:42:29.216 [i]: VideoPlayer: mpv [Plex.exe] connected, waiting for the video info...
19:42:35.713 [i]: VideoPlayer: mpv v0.39.0-637-gd87113fd-dirty /via 'mpvpipe'
19:42:37.229 [i]: Media: video looks like some kind of stream
19:42:37.229 [i]: Media: video 1920x1080 [PAR 1.000] at 23.976 fps (via video player)
19:42:37.229 [i]: Media: codec type is H.264 / AVC / MPEG-4 AVC / MPEG-4 part 10
19:42:37.233 [i]: Playback: starting up...
19:42:37.235 [i]: Playback [433d86dd]: Frame server (64-bit) C:\Program Files\VapourSynth\core\vapoursynth.dll
19:42:37.237 [i]: Playback [433d86dd]: resulting video frame 1920x1080
19:42:37.237 [i]: Playback [433d86dd]: 2 acceptible profiles, best is 'RIFE AI engine' [90]
19:42:37.238 [i]: Playback [433d86dd]: enabled while video is playing
19:42:37.241 [i]: Playback [433d86dd]: playing at 119.88 [23.976 *5/1] 
19:42:37.249 [E]: Playback [433d86dd]: VS - Could not initialize VapourSynth scripting.
19:42:59.537 [i]: Playback [433d86dd]: deleted
19:43:00.724 [i]: VideoPlayer: mpv [Plex.exe] connected, waiting for the video info...
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Re: SVP not picking up Plex all of a sudden.

installing Vapoursynth on your own (C:\Program Files\VapourSynth\core\vapoursynth.dll) was probably not a best idea, unless you know exactly what you're doing

PATH/PYTHONPATH are for the Vapoursynth/Python bundled with SVP, otherwise you shouldn't set these to SVP 4/mpv64

Re: SVP not picking up Plex all of a sudden.

thanks, that was it. i uninstalled vapoursynth and now the frameserver gets loaded from the svp directory.