Thumbfast thumbnail not working.

[Naumanbo]

Should the thumbnails from thumbfast be working by default on Stremio Kai or is there extra configuration required to get it working? I cannot get it to work and I have not changed any files other than replace the mpv.conf with my original config from my initial installation of stremio community by Zargg as I do not intend to allow hdr passthrough since I do not own a HDR capable display. Instead, I tone map the HDR content to SDR. Here is my config, I have kept everything that was originally there in the Stremio Kai config and just added things that were missing between my config and the default kai one. Additioanly, I also just replace the profiles with what I used normally on stremio community by Zargg. I would appreciate any pointers on how to get thumbfast to work. Thank you!

mpv.conf:
log-file=LOG.txt

#########

Cache

#########

Optimized for i5-9300H + 16GB RAM

cache=yes
cache-secs=900 # Reduced from 1800 for SVP efficiency
demuxer-max-back-bytes=75MiB # Increased for better seeking
demuxer-max-bytes=150MiB # Increased for SVP buffering
stream-buffer-size=16MiB # Increased for smoother streaming
gpu-shader-cache-dir=/cache/shaders
icc-cache-dir=/cache/icc

########

Subs

########

sub-font=Nata Sans
sub-border-size=0.1
sub-outline-color=0.0/0.0/0.0/0.0 # fully transparent
sub-shadow-offset=2.0 # Small subtle drop shadow
sub-shadow-color=0.0/0.0/0.0/0.75 # Semi-transparent black shadow
sub-blur=0.3

#########

Audio

#########

ao=wasapi
audio-exclusive=no
audio-format=float # Better than s32 for modern systems
audio-pitch-correction=yes
audio-api=wasapi
audio-spdif=ac3,eac3,truehd,dts,dts-hd,dolby-atmos,dts-x
ad-lavc-downmix=no
audio-channels=auto

Better scaling and antiring

scale=ewa_lanczossharp
dscale=ewa_lanczossharp
scale-antiring=0.7
cscale-antiring=0.7
dscale-antiring=0.7
correct-pts=yes
correct-downscaling=yes
sigmoid-upscaling=yes # Prevents ringing/aliasing artifacts during upscaling.

Colors - Universal compatibility

target-contrast=auto
gamma=0
brightness=0
contrast=0
saturation=0
video-output-levels=auto

OSD

osd-font=JetBrains Mono
osd-font-size=25
osd-color=0.0/0.0/0.0/1.0 # Black text body
osd-outline-size=1.5
osd-outline-color=1.0/1.0/1.0/1.0 # White outline
osd-blur=0.1
osd-align-x=center
osd-bar=no
osd-margin-y=50
osd-duration=3000
osd-scale-by-window=yes
script-opts=console-font_size=10

Playback optimizations

force-seekable=yes
hr-seek-framedrop=no
interpolation=no # Disabled since we use SVP
#video-sync=display-resample # Better frame timing, but forces FPS to match your display
# Disabled for more control through SVP

############################## PROFILES ##############################

[sdr]
profile-cond = not (get("video-params/gamma") == "pq"
or get("video-params/gamma") == "hlg")
profile-restore=copy

target-prim=bt.709
target-trc=bt.1886

target-peak=100 # Optional; usually not needed for SDR

tone-mapping=clip
gamut-mapping-mode=clip
hdr-compute-peak=no

==============================================================

HDR → SDR "look", using HDR 10-bit pipeline

==============================================================

--------------------------------------------------------------

HDR10 / HDR10+

--------------------------------------------------------------

[bt.2100-pq]
profile-cond = get("video-params/primaries") == "bt.2020"
and get("video-params/gamma") == "pq"
profile-restore=copy

target-prim=bt.709
target-trc=bt.1886
target-peak=100

tone-mapping=spline
tone-mapping-mode=auto

tone-mapping-param=0.5

tone-mapping-desaturate=yes

hdr-compute-peak=yes
gamut-mapping-mode=perceptual
hdr-contrast-recovery=0.75

--------------------------------------------------------------

HLG

--------------------------------------------------------------

[bt.2100-hlg]
profile-cond = get("video-params/primaries") == "bt.2020"
and get("video-params/gamma") == "hlg"
profile-restore=copy

target-prim=bt.709
target-trc=bt.1886
target-peak=100

tone-mapping=bt.2446a
tone-mapping-mode=auto

tone-mapping-desaturate=yes

hdr-compute-peak=yes
gamut-mapping-mode=perceptual

--------------------------------------------------------------

Dolby Vision base layer (treated as PQ HDR10 by mpv)

--------------------------------------------------------------

[dolbyvision]
profile-cond = get("video-params/gamma") == "pq"
profile-restore=copy

target-prim=bt.709
target-trc=bt.1886
target-peak=100

tone-mapping=spline

tone-mapping-param=0.6

hdr-compute-peak=yes
gamut-mapping-mode=perceptual
hdr-contrast-recovery=0.75

[allecsc]

There ia a line that I missed adding. Check this thread for the solution: #25

[allecsc]

With that kind of internet you shouldn't have any issues, it's true. I use a 1GB internet and have never had any issues with neither debrid or p2p streams. You got a weird situation, ngl, and I'm finding myself out of options right now. All I can hope is that the new version will work better for you, although there's been no changes to anything thumbnails related since v2.7 or so.

Everything I showcase is from streams alone, never from local files.

[Naumanbo]

Thank you for your help, I reinstalled thumbfast from the original author even though everything is basically the same and restarted my computer and the thumbnails seem to be working now. Seems the issue is more thumbfast adjacent than stremio so nothing that could be done there. Just last thing that doesnt work is the tone_mapping option set to auto in the config file. For videos with HDR metadata or Dolby Vision, it does not display any thumbnails if tone mapping is set to auto, although this is a minor nuisance (since thumbnails work on all videos now regardless of HDR, DV or SDR) when tone-mapping is off).

[Naumanbo]

any updates on when the next release of Stremio Kai might come out?

[allecsc]

I'm very close to finishing it, if something else doesn't pop out again. I'm implementing the last features at the moment, but I still have to review and test everything once I'm done. Hopefully, if all goes well, tomorrow evening it will be out.

[Naumanbo]

Looking forward to it!

[ntalbotdev]

I solved that issue by changing quit_after_inactivity to 0 (disabled) in scripts-opts/thumbfast.conf

[allecsc]

This actually makes sense. Thanks for letting me know! I'll be sure to revert that in the new update.

[ntalbotdev]

This actually makes sense. Thanks for letting me know! I'll be sure to revert that in the new update.

Personally it takes me 9-10 seconds to load a thumbnail. I'm sure just increasing to a higher value would be fine too!

[allecsc]

The new version has been released, let me know if thumbfast works for you now please.

[allecsc]

Great to hear it's going well. If you want to help,
I'm looking for testers for this build overall, and especially how the new skipping script functions.

So, if you have any bad experiences when skipping, and want to help, make sure to let me know. If you can note down the exact stream name, time of skipping and what went wrong, it would be useful for me to try and improve it.

Thanks for using Stremio Kai!

[Naumanbo]

Just came across a bug, which is specific to one movie but when I search up "JJK" and click on the "Jujutsu Kaisen 0" Movie, there is a blank screen. Perhaps something to do with the TMDB integration and fetching ratings etc? I use AIOMetadata for TVDB searches for TV Shows and TMDB for movies. So far though, I haven't had any bad experiences with skipping. Also for some searches in TVDB like "Naruto" for instance, it does not show cast or ratings metadata but in my continue watching list when I click on the banner, the information shows up. If it helps, I can send a template of my aiometadata config. Let me know what you need to look further into the issue. I only found the issue with the JJK 0 movie but who knows what other movies/tv shows this could be an issue for.

Note: The Ratings not displaying issue with Naruto randomly just fixed itself, could be it was unable to fetch the information so it just defaulted to what TVDB provided. The JJK 0 issue is still persisting and it completely bars me from watching it.

Here is a video showing the issue with "JJK"
https://github.com/user-attachments/assets/697bdf5d-5026-43dd-a416-671d62715bc2

[allecsc]

The engine behind is always looking for an IMDB ID to be able to get the metadata. Since you use TVDB and TMDB as your main metadata sources it won't be able to identify what you're looking at all the time.

What happened there was that the engine detected the IMDB ID from another catalog that probably used Cinemeta's metadata, which provides the ID needed, and then managed to fetch the enhanced metadata, so next time you accessed the page it had all the IDs mapped between themselves and was able to provide you with the correct metadata.

I've honestly reverted back to basic metadata in my config since Kai already offers more complete meta than anything AIOmetadata could provide, so I recommend you do the same for more consistency and compatibility, if it's not much trouble for you to do so. All in all, eventually it will find all the IDs needed and you shouldn't have issues anymore, given time.

Edit: Just saw the video. That is weird and it shouldn't be caused by Kai since it only replaces what exists already, but in no case it should remove the entire page, streams and all that. If that still happens, you can right click and select Inspect then go to the console page and copy paste the error that shows there last. Should be something with red. I may be able to tell you exactly what is causing that based on the error.

[allecsc]

Just came across a bug, which is specific to one movie but when I search up "JJK" and click on the "Jujutsu Kaisen 0" Movie, there is a blank screen.

This just happened on regular Stremio, so definitely not Kai's doing.

[Naumanbo]

Thank you , I do not have regular stremio downloaded so I was unable to check.