Topic: unable to init FlowLib

Hey guys I keep getting an error message each time I try to start a new video that has this in yellow text at the top of the screen during playback. It also gives me an error report I'll include as well. I've tried uninstalling then reinstalling but just persists. Problem just came out of the blue without much explanation.

1:37:24.726; Start: SVPMgr 3.1.6 (1041) starts...
1:37:24.726; AppDataPath: C:\ProgramData (ANSI)
1:37:24.726; Start: read settings file settings.ini
1:37:24.727; Start: load language file - English. Duration: 25 ms
1:37:24.752; Start: check launched instance of SVP-manager
1:37:24.753; Start: check Avisynth installed. Duration: 1611 ms
1:37:26.364; Start: clear Logs folder
1:37:26.365; Start: CPU and threads count detection
CPU: Intel Core i5-4430 @ 3.00GHz [4 threads] (1553)
1:37:26.366; Start: SVPMgr folders prepare. Duration: 6 ms
1:37:26.372; Start: read settings file SVPMgr.ini
1:37:26.373; Start: GPUs settings detection
GPU_11: GeForce GTX 970 (4241)
1:37:26.386; Start: monitors settings detection
Display#00010001: 1768 x 992 @ 60
1:37:26.386; Start: disable LNG-file write when UAC enabled
1:37:26.386; Start: change SVP-manager priority
1:37:26.386; Start: register hotkeys
1:37:26.389; Start: get versions of modules used
ffdshow.ax/avisynth.dll: 1.3.4530.0/2.5.8.6
svpflow1/2.dll: 1.3.5.0/1.5.7.0
svpflow_cpu/gpu.dll: 1.7.2.0/1.8.3.0
1:37:26.389; Start: refresh autostart state in registry
1:37:26.389; Start: some more work with registry
1:37:26.391; Start: create menu. Duration: 10 ms
1:37:26.401; Start: update settings file settings.ini. Duration: 24 ms
1:37:26.425; Start: prepare "About the program" window
1:37:26.430; Start: enable ffdShow waiting mode
1:37:26.430; Start: prepare to work is complete
1:37:26.432; RefreshSVP
1:37:26.434; ===== Waiting for ffdshow video

1:37:26.933; ===== Detected playback with ffdShow. AppName: mpc-hc.exe PID: 5100
1:37:26.933; GetDimensionAndFPS_fromOSD start. Duration: 362 ms
1:37:27.295; GetDimensionAndFPS_fromOSD result: 1280x544 17.923 1/1
1:37:27.296; T1T: begin. Duration: 870 ms
1:37:28.166; screen settings refinement: Display#00010001: 1768 x 992 @ 60.004
1:37:28.167; T1T: GetAllMediaParams
1:37:28.167; ### CorrectStereoModeByAppAndFilename: A Knight's Tale.mp4
1:37:28.168; T1T: SettingsPrepare
1:37:28.172; T1T: Preparing smooth playback...
1:37:28.172; T1T: WriteAllMediaParamsToIni
1:37:28.172; SVPMgr: main "C:\ProgramData\SVP 3.1\" 1280 544 17.923 1280 544 10 3. Duration: 125 ms
1:37:28.297; ===== Playback
17.923 * (10 : 3) = 59.743 fps
1:37:28.298; SetPriorityPlayer: 2. Duration: 395 ms
1:37:28.693; Error: Error preparing smooth playback! Script error:
SVSmoothFps: unable to init FlowLib [code 0x50000]
(C:\ProgramData\SVP 3.1\AVS\ffdshow.avs, line 40)
(C:\ProgramData\SVP 3.1\AVS\ffdshow.avs, line 55)
(ffdshow_filter_avisynth_script, line 4)

1:45:42.624; RefreshSVP
1:45:42.626; ===== Waiting for ffdshow video

1:45:46.698; ===== Detected playback with ffdShow. AppName: mpc-hc.exe PID: 6936
1:45:46.699; GetDimensionAndFPS_fromOSD start. Duration: 362 ms
1:45:47.061; GetDimensionAndFPS_fromOSD result: 1280x544 23.976 1/1
1:45:47.062; T1T: begin
1:45:47.064; T1T: GetAllMediaParams
1:45:47.065; ### CorrectStereoModeByAppAndFilename: A Knight's Tale.mp4
1:45:47.066; T1T: SettingsPrepare
1:45:47.070; T1T: Preparing smooth playback...
1:45:47.071; T1T: WriteAllMediaParamsToIni
1:45:47.071; SVPMgr: main "C:\ProgramData\SVP 3.1\" 1280 544 23.976 1280 544 5 2. Duration: 126 ms
1:45:47.197; ===== Playback
23.976 * (5 : 2) = 59.94 fps
1:45:47.197; SetPriorityPlayer: 2. Duration: 389 ms
1:45:47.586; Error: Error preparing smooth playback! Script error:
SVSmoothFps: unable to init FlowLib [code 0x50000]
(C:\ProgramData\SVP 3.1\AVS\ffdshow.avs, line 40)
(C:\ProgramData\SVP 3.1\AVS\ffdshow.avs, line 55)
(ffdshow_filter_avisynth_script, line 4)


Any help would be appreciated just don't know where to go from here.

Re: unable to init FlowLib

Step 1: reinstall video drivers.

Re: unable to init FlowLib

Chainik wrote:

Step 1: reinstall video drivers.

Hey Chainik thanks for the reply. I recently rolled back my drivers to an earlier version due to the newest one causing some issues with games. Should I just re-install with the newest version regardless to solve or can I use the older drivers without issue?

Re: unable to init FlowLib

May be something was broken in a rolling back process.
Use the "Driver sweeper" tool first.

Upd: in fact this particular error means some errors in OpenCL program compilation. What driver version(s) are you using?

Re: unable to init FlowLib

Chainik wrote:

May be something was broken in a rolling back process.
Use the "Driver sweeper" tool first.

Upd: in fact this particular error means some errors in OpenCL program compilation. What driver version(s) are you using?

Hey Chainik I managed to fix it by using an in between version of drivers. I was using the latest from nvidia but then it caused problems with gaming so I rolled back to an earlier version then the problem started so I found a version that wasn't the latest and was still newer than the original early version I tried. Works fine now thanks.