service.trickplay

Kodi background service that can generate/show Jellyfin trickplay or custom trickplay thumbnails (tile grid, duration and resolution can be customized).

Skin integration required

This addon does not work out of the box. It runs as a service that crops thumbnails and publishes window properties, but your active Kodi skin must display them.

For each skin you use, you must merge trickplay preview controls from this repo into that skin’s own DialogSeekBar.xml.

The reference snippets in this addon are:

Skin	Snippet file	Profile / notes
Estuary Mod v2	resources/skin-snippet/DialogSeekBar-skin.estuary.modv2.xml	Slot slides
Arctic Fuse 3	resources/skin-snippet/DialogSeekBar-skin.arctic.fuse.3.xml	Slot slides + full OSD center group
Arctic Fuse 2	resources/skin-snippet/DialogSeekBar-skin.arctic.fuse.2.xml	Slot slides + full OSD center group
Aeon Nox SiLVO	resources/skin-snippet/DialogSeekBar-skin.aeon.nox.silvo.xml	Slot slides + Home properties
Arctic Zephyr	resources/skin-snippet/DialogSeekBar-skin.arctic.zephyr.xml	Slot slides + Home properties
Arctic Zephyr 2 Resurrection	resources/skin-snippet/DialogSeekBar-skin.arctic.zephyr.2.resurrection.xml	Slot slides + Home properties
Arctic Zephyr Rounded	resources/skin-snippet/DialogSeekBar-skin.arctic.zephyr.rounded.xml	Slot slides + Home properties
Arctic Horizon	resources/skin-snippet/DialogSeekBar-skin.arctic.horizon.xml	Slot slides + Home properties
Arctic Horizon 2	resources/skin-snippet/DialogSeekBar-skin.arctic.horizon.2.xml	Slot slides + Home properties
Arctic Horizon 2.1 Arizen	resources/skin-snippet/DialogSeekBar-skin.arctic.horizon.2.1.arizen.xml	Slot slides + Home properties
Bello	resources/skin-snippet/VideoFullScreen-skin.bello.xml	Center seek OSD in VideoFullScreen.xml (fixed below seek box @ 720p)
Bingie	resources/skin-snippet/DialogSeekBar-skin.bingie.xml	Slot slides + Home properties
Any other skin	resources/skin-snippet/DialogSeekBar-universal-dynamic.xml	Pick closest skin profile in settings

Tested skins

The following skins have been tested with trickplay preview while scrubbing:

• Aeon Nox SiLVO
• Arctic Fuse 2
• Arctic Fuse 3
• Arctic Horizon 2
• Arctic Zephyr 2 Resurrection
• Arctic Zephyr Rounded
• Bingie
• Estuary Mod v2

Those filenames are deliberate: they are not dropped into Kodi as-is. Either:

• Use Add-on settings → Preview tools → Show addon status to see whether the active skin snippet is missing or stale, then Install skin snippet (current skin) (updates stale overlays) or Force reinstall skin snippet if needed. Install backs up each skin’s target XML (usually DialogSeekBar.xml; Bello uses VideoFullScreen.xml) and merges overlay group 94090 (or full replace for Estuary Mod v2 / Arctic Fuse), or
• Manually copy the preview block from the matching file into your skin’s real target XML (backup the original first).

Skins without a discoverable DialogSeekBar.xml under their add-on folder are skipped and reported as failed.

Skin profiles (auto-detect)

The service detects your active Kodi skin (xbmc.gui addon id) and selects seek bar geometry and focus behavior from skin_profiles.py:

Profile	Skin IDs	Seek bar (left, top, width)
Estuary Mod v2	skin.estuary.modv2, skin.estuary.mod, …	460, 990, 1430 (+ wide 30, 990, 1860)
Arctic Fuse 3	skin.arctic.fuse.3, …	240, 772, 1440
Arctic Fuse 2	skin.arctic.fuse.2, …	240, 772, 1440
Aeon Nox SiLVO	skin.aeon.nox.silvo, skin.aeon.nox, …	0, 1039, 1920
Arctic Zephyr	skin.arctic.zephyr, …	60, 1060, 1800
Arctic Zephyr 2 Resurrection	skin.arctic.zephyr.2.resurrection.mod, …	60, 1060, 1800
Arctic Zephyr Rounded	skin.arctic.zephyr.rounded, …	130, 962, 1660
Arctic Horizon	skin.arctic.horizon, …	40, 920, 1840
Arctic Horizon 2	skin.arctic.horizon.2, …	20, 720, 1840
Arctic Horizon 2.1 Arizen	skin.arctic.horizon.2.1.arizen, …	20, 720, 1840
Bello	skin.bello, skin.bello.9, skin.bello.10, …	478, 560, 320 (center seek OSD in VideoFullScreen.xml)
Bingie	skin.bingie, …	384, 957, 1152 (+ wide 525, 934, 700 classic OSD)

For Arctic Fuse 3 and Arctic Fuse 2, the snippet includes preview groups 94090 (overlay root), 94100 (seek-bar aligned via PreviewSlot slides 0–100), and 94103 (centered above the seek bar at the same height as minimal mode when full OSD is open). The service sets Trickplay.PreviewLayout to seekbar or center automatically. Re-install from the matching DialogSeekBar-skin.arctic.fuse.*.xml if you installed an older snippet missing 94100 / 94103.

Unknown skins fall back to Estuary Mod v2 geometry and log a warning. Override manually under Add-on settings → Skin profile if auto-detect is wrong.

You still must merge the matching XML snippet. Set the correct Skin profile in add-on settings. Most dedicated skins use PreviewSlot slide animations (101 slots); the universal-dynamic snippet binds Trickplay.PreviewLeft/Top for skins where $INFO coordinates work.

What to read in your skin

Before editing DialogSeekBar.xml, inspect your skin’s:

File	What to look for
Includes.xml	The SeekBar / SeekBarProgress include — seek bar <left>, <right>, <top>, width, and hidden seek button id (often 87). OSD button grouplist id (often 200) if you care when the preview hides on play/pause focus.
Variables.xml	Expressions such as isSeeking used by the seek bar and OSD visibility.
DialogSeekBar.xml	Where the seek bar is included, scope-mode slide offsets, and SmallOSDVideo / ShowSeekBar skin settings.
VideoOSD.xml (optional)	How focus moves between play controls and the seek bar.

The service positions previews using geometry derived from those values. If they do not match your skin, the thumbnail will drift or sit in the wrong place.

Geometry in this addon

Seek bar layout is defined per skin in skin_profiles.py and applied automatically. Each profile supplies 1080p coordinates (left, top, width) used to compute Trickplay.PreviewSlot (0–100, 101 slots) and PreviewLeft/PreviewTop. Dedicated skin snippets use slot-slide animations matched to that geometry.

To add a new skin, define a profile in skin_profiles.py, add a DialogSeekBar-skin.*.xml snippet, and map the skin addon id in PROFILES_BY_SKIN_ID.

Merge checklist

1. Copy the 94090 trickplay overlay group from resources/skin-snippet/DialogSeekBar-skin.estuary.modv2.xml into your skin’s DialogSeekBar.xml (as a top-level control, not nested inside unrelated groups).
2. Confirm preview visibility uses Trickplay.PreviewVisible (set by the service).
3. Confirm group 94100 has PreviewSlot slide animations covering slots 0–100 (or uses $INFO PreviewLeft on skins that support it).
4. Reload the skin or restart Kodi after changes.

Without this merge, the service will still load trickplay data and log preview updates, but nothing will appear on screen.

Skin: hide seek OSD during Skippy skips

If you use service.skippy, enable Skippy’s Hide OSD display during skip (signal_skipping_for_skins). That sets Window(Home).Property(Skippy.Skipping) when a segment is actually skipped.

Skin snippets hide the seek bar / thumb while that property is set:

<visible>String.IsEmpty(Window(Home).Property(Skippy.Skipping))</visible>

When you scrub again (seek away from the skip landing) or open the video OSD, Trickplay clears Skippy.Skipping so the seekbar can reappear. Overlay revision 9+.

---

How it works

Jellyfin stores trickplay sprites next to your media:

/path/to/Show.S01E01.mkv
/path/to/Show.S01E01.trickplay/
└── 320 - 10x10 - 10000/
    ├── 0.jpg    # 10×10 grid of 320 px-wide thumbs (100 frames)
    ├── 1.jpg
    └── ...

Legacy Jellyfin folders without an interval suffix (320 - 10x10/) are treated as 10000 ms between thumbnails.

When playback starts, the service locates the matching .trickplay folder, maps the seek position to a tile file and grid cell, crops the active cell with Pillow, and publishes DialogSeekBar window properties for the skin to render.

Prefetch pre-crops neighbouring cells in the background. During playback (default), the service keeps the configured prefetch radius warm symmetrically around the moving playhead — not only when the seek bar opens. Radius is in thumb indices (e.g. radius 5 with a 10 s interval ≈ ±50 s on the timeline).

Main window properties

Property	Description
Trickplay.PreviewVisible	true when the skin should show the preview
Trickplay.PreviewImage	Path to a cropped preview JPEG for the active cell
Trickplay.PreviewTime	Target position (formatted timestamp)
Trickplay.PreviewSlot	Horizontal slot index (0–100) for slide animations
Trickplay.PreviewLeft / PreviewLeftWide / PreviewTop	Pixel position (used by universal-dynamic; slot skins use slides)
Trickplay.ShowTimestamp	true when the skin should show the time label
Trickplay.PreviewColorDiffuse	Kodi colordiffuse ARGB (e.g. FFFFFFFF = opaque); driven by Preview opacity setting
Trickplay.Available	true when trickplay data was found for the current file

Additional placement/debug properties (Trickplay.PreviewLeft, Trickplay.PreviewTop, etc.) are also published.

Requirements

• Local or NFS media files with Jellyfin trickplay sidecars (Save trickplay with media enabled in Jellyfin), or use the built-in generator (see below)
• Skin edit to DialogSeekBar.xml (or VideoFullScreen.xml for Bello) — see above
• Pillow — required for cropping preview cells and sidecar dimension probing. Auto-installed via Install preview tools when needed.
• ffmpeg and ffprobe — required only for trickplay generation (and HDR tone mapping); auto-installed via Install preview tools when the generator or HDR tone mapping is enabled, batch Run, or manual install under /storage/.kodi/system/ffmpeg/ (CoreELEC) / addon_data/.../system/ffmpeg/ (Windows)

Settings

• Preferred tile width — resolution folder to use (default 320 for 320 - 10x10 - 10000)
• Preview tile grid layout — always visible: From folder name (default, reads 10x10 from 320 - 10x10 - 10000/, etc.) or fixed 10×10, 20×20, 5×5, 15×15, Custom when sprites don't match the folder name
• Thumbnail interval (ms) — used to select a matching sidecar folder and as fallback when the folder name has no interval (default 10000)
• Interval selection — when several sidecar folders share the same tile width (e.g. 320 - 10x10 - 5000 and 320 - 10x10 - 10000), Preferred interval uses the thumbnail interval setting; Shortest interval picks the finest-grained previews available
• Seek poll interval (ms) — refresh rate while scrubbing (default 100)
• Skin profile — auto-detect active skin, or force a listed profile (Estuary Mod v2, Arctic Fuse 3, Aeon Nox SiLVO, Arctic Zephyr, Arctic Horizon)
• Enable debug logging — logs seek targets, preview slots, visibility toggles, and active skin profile

Preview adjustment (Settings → Preview adjustment)

• Preview scale (%) — thumbnail size relative to default (100 = normal)
• Preview horizontal / vertical offset (px) — nudge placement @ 1080p
• Preview hold time (seconds) — how long the preview stays after seeking stops (0 = follow playhead until OSD closes; default 4)
• Show timestamp — seek position label under the thumbnail
• Preview opacity (%) — overall transparency (0–100)
• Show preview when play controls focused — keep preview visible while the OSD play/pause row has focus (default on)

Prefetch (Settings → Prefetch)

• Enable prefetch — master toggle for background pre-cropping
• Prefetch on playback start — warm cache around the current playhead when a video loads
• Prefetch whole sprite tile — queue extra cells from the current sprite JPG during scrubbing
• Prefetch idle sprite tile — fill in the rest of the tile while the OSD is open and idle
• Prefetch radius — indices ahead/behind to pre-crop (default 5)
• Prefetch queue size — max pending background crops (default 48)
• Crop cache limit (MB) — LRU cap for cropped JPEGs (default 500; 0 = unlimited)
• Cached thumb JPEG quality — compression for cropped preview JPEGs (50–95, default 90)

Scrub crops reuse up to 8 decoded sprite tiles in RAM and publish via a live temp JPEG first; durable cache writes finish in the background.

Trickplay generator (Settings → Trickplay generator)

Off by default. When disabled, all generator options are hidden.

• Enable trickplay generator — master toggle
• Generate while idle — when Kodi is not playing video, generate one missing sidecar at a time from the library folder (background service)
• Generate on library update — after a library scan, batch-generate trickplay only for videos added during that scan (separate from idle generation)
• Library update: only when not playing — defer the post-scan batch until playback has stopped (default on)
• Frame extraction mode — Accurate (slow, frame-accurate), Fast (default), or Fast (batch seeks) (several seeks per ffmpeg process with Fast fallback; biggest gains on local SDR; automatically uses Fast when HDR/DV tone mapping or hardware decode is active; legacy setting experimental maps here)
• Generator ffmpeg path — optional; folder (e.g. /storage/.kodi/system/ffmpeg/) or ffmpeg binary. Always visible in settings (even when the generator is off). Leave empty to auto-use the default install folder when present, otherwise PATH / /usr/bin/ffmpeg. Used for generation only (preview cropping uses Pillow). Use Install preview tools when the generator or HDR tone mapping is enabled, or batch Run when generating. See Custom ffmpeg for HDR generation below.
• HDR tone mapping for previews — optional; tone-maps HDR/DV to SDR when generating JPEGs (default off). Requires zscale or libplacebo in the generator ffmpeg. With tone mapping on, Run can prompt to download a pinned build if none is installed.
• HDR dovi_tool fallback — optional sub-setting when tone mapping is on; runs dovi_tool if ffprobe finds no HDR signals (default off; place dovi_tool in generator ffmpeg bin/ or on PATH, local files only). With fallback on, Run can prompt to download dovi_tool 2.3.2 into the generator tools folder.
• Skip Dolby Vision Profile 5 — optional when tone mapping is on; skips web-style DV P5 files in batch (full dovi_tool convert is very slow on CoreELEC).
• Hardware decode (HDR HEVC) — optional GPU decode for 10-bit / HDR / Dolby Vision HEVC during thumbnail extraction. Windows default: D3D11VA → hwdownload. Linux default: prefer zero-copy VA-API → Vulkan (vk@va) → libplacebo when available, else VA-API → hwdownload. Optional Prefer CUDA / NVDEC (NVIDIA) uses CUDA decode → hwdownload on NVIDIA GPUs (jellyfin-ffmpeg). Not a general “HW everything” switch: 1080p H.264 SDR should stay on software decode. Applied only when ffprobe reports HEVC with 10-bit and/or HDR/DV. After the first HW failure on a file, software decode is used for the rest of that job. Auto-install uses jellyfin-ffmpeg portable; override the Linux render node with TRICKPLAY_VAAPI_DEVICE (default: first /dev/dri/renderD*). No effect when probes fail (e.g. CoreELEC without VA-API/Vulkan).
• Overwrite existing sidecars — replace matching sidecar folders when already present (default off). Skips Jellyfin legacy folders such as 320 - 10x10/ (treated as 10000 ms) when generator settings match width, grid, and interval
• Library folder — root path for batch and idle scans (must be writable for sidecar output). Configure the generator here, press OK to save, then use Run on the add-on’s Information page to start batch generation (not from inside Configure). If the path is empty or missing, batch generation opens the full Kodi folder browser and saves your selection. Prefer your OS mount path (e.g. /storage/remote-shares/…) when available — it is faster than nfs:// URLs for generation.
• Generator thumbnail interval (ms) — time between generated frames; included in the sidecar folder name (default 10000, e.g. 320 - 10x10 - 1000)
• Tile grid layout — grid written into the sidecar folder name (e.g. 320 - 20x20 - 10000); uses Preferred tile width and Generator thumbnail interval
• Run (add-on Information page) — scan the library folder and generate all missing sidecars with a progress dialog. Use Configure first and press OK so settings are saved before Run.

Generation requires write access next to your media files. Pauses automatically during video playback.

Custom ffmpeg for HDR generation

Generator ffmpeg (auto-installed or manual) includes zscale for HDR trickplay. Without it, HDR previews may look washed out until you install a capable build via batch Run.

Pre-built releases: jellyfin-ffmpeg portable (primary auto-install). Legacy fallbacks: BtbN/FFmpeg-Builds (Linux) and Gyan CODEX ffmpeg (Windows).

Which download?

Device / OS	Build	Notes
x86_64 Linux / CoreELEC	jellyfin-ffmpeg …_portable_linux64-gpl.tar.xz	zscale + libplacebo; VA-API/Vulkan when host drivers allow
aarch64 Linux / CoreELEC	jellyfin-ffmpeg …_portable_linuxarm64-gpl.tar.xz	Same; Profile 5 may still use dovi_tool without Vulkan
Windows Kodi (x64)	jellyfin-ffmpeg …_portable_win64-clang-gpl.zip	zscale + libplacebo + D3D11VA/Vulkan
Windows ARM64	jellyfin-ffmpeg …_portable_winarm64-clang-gpl.zip	Same family; BtbN kept as install fallback

Archives are flat (ffmpeg / ffprobe at the root). On install failure the add-on retries legacy BtbN (Linux / Win ARM64) or Gyan full (Win x64).

Automatic install (Install preview tools / batch Run)

Install preview tools (top of add-on settings) downloads Pillow for preview cropping when it is not already available. When the generator is enabled or HDR tone mapping is on, it also offers ffmpeg/ffprobe (and optional HDR extras). Batch Run prompts for generator ffmpeg before generation (base ffmpeg even when HDR tone mapping is off; HDR upgrade, Vulkan loader, and dovi_tool when those settings require them).

On first playback with trickplay sidecars but no Pillow, the service may prompt once per Kodi session to install (decline with Continue without to skip until restart).

Component	Auto-install source	Install location
Pillow (preview)	PyPI wheel (pinned)	special://profile/addon_data/service.trickplay/system/python/site-packages/
ffmpeg (generation) — Linux / CoreELEC	jellyfin-ffmpeg portable (BtbN fallback)	/storage/.kodi/system/ffmpeg/ (bin/ has ffmpeg, ffprobe, optional dovi_tool)
ffmpeg (generation) — Windows	jellyfin-ffmpeg portable (Gyan / BtbN fallback)	special://profile/addon_data/service.trickplay/system/ffmpeg/

You can decline and continue without a capable ffmpeg (HDR previews may look washed out), or install manually using the steps below.

When HDR dovi_tool fallback is enabled and dovi_tool is missing, Run offers to download dovi_tool 2.3.2 into the generator ffmpeg bin/ folder (same location as auto-installed ffmpeg — survives add-on updates).

If an older Gyan/BtbN install is already HDR-capable, Install preview tools / Install generator tools / batch Run will prompt to replace it with jellyfin-ffmpeg (not a silent “already installed” toast). Decline keeps the legacy build. Generation logs Generator ffmpeg build: jellyfin-ffmpeg — … when the portable is active.

Pinned jellyfin-ffmpeg (v8.1.2-2): linux64, linuxarm64, win64, winarm64.

Pinned dovi_tool (2.3.2): linuxarm64, linux64, win64, winarm64.

After download, verify on the device:

/storage/.kodi/system/ffmpeg/bin/ffmpeg -hide_banner -filters 2>&1 | grep -E 'zscale|libplacebo|tonemap'

On Windows, add the install bin/ folder to PATH if needed before running the same check.

You want zscale and/or libplacebo, not just tonemap. Re-run Install preview tools / Run if filters are missing.

Where to extract (CoreELEC / LibreELEC)

Default layout (auto-detected when Generator ffmpeg path is empty):

/storage/.kodi/system/ffmpeg/
└── bin/
    ├── ffmpeg
    ├── ffprobe
    └── dovi_tool          ← auto-install (3.2.0+); survives add-on updates

(lib/ is only needed for Windows gpl-shared or manual Linux shared installs.)

Steps:

1. Download the jellyfin-ffmpeg portable archive for your arch (or use Install preview tools / Run).
2. Extract so ffmpeg and ffprobe land in /storage/.kodi/system/ffmpeg/bin/ (portable archives are flat — copy the two binaries into bin/).
3. Make binaries executable: chmod +x /storage/.kodi/system/ffmpeg/bin/ffmpeg /storage/.kodi/system/ffmpeg/bin/ffprobe (and dovi_tool if installed manually)
4. Leave Generator ffmpeg path empty (uses the folder above) or set it explicitly to /storage/.kodi/system/ffmpeg/ or /storage/.kodi/system/ffmpeg/bin/ffmpeg.

On x86_64 Linux Kodi, use the same folder layout under /storage/.kodi/system/ffmpeg/ (or set Generator ffmpeg path to your install location).

The add-on logs the chosen binary at generation start, e.g. Generator ffmpeg: … (default (/storage/.kodi/system/ffmpeg)). With HDR tone mapping enabled you should see using zscale + tonemap or using libplacebo in kodi.log.

libplacebo + Vulkan on Windows and desktop Linux

jellyfin-ffmpeg portable (auto-install) includes libplacebo and zscale. Dolby Vision Profile 5 uses libplacebo + apply_dolbyvision when Vulkan init succeeds (Windows install may bundle vulkan-1.dll beside ffmpeg). Enable Hardware decode (HDR HEVC) for 4K HDR/DV HEVC; leave it off for typical 1080p H.264 libraries — software + fps-batch is better there.

On Windows, Hardware decode uses:

1. CUDA/NVDEC → hwdownload when Prefer CUDA / NVDEC (NVIDIA) is on and CUDA probes OK
2. Else D3D11VA → hwdownload,format=p010le → existing zscale/libplacebo filters
3. Software after the first HW failure on a file (or when HW decode is off / ineligible)

D3D11VA→Vulkan (vk@dx) zero-copy is not used (ffmpeg returns ENOSYS on current Windows builds).

On CoreELEC without usable Vulkan, Profile 5 DV still uses dovi_tool + zscale. Linux hardware decode uses VA-API tiers when jellyfin-ffmpeg and host drivers support them.

On desktop Linux with VA-API + Vulkan (e.g. AMD Mesa RADV), Hardware decode prefers:

1. Zero-copy: VA-API decode → vulkan=vk@va → libplacebo tonemap → SDR JPEG
2. Download: VA-API → hwdownload,format=p010le → existing zscale/libplacebo filters
3. Software when probes fail

Ensure /dev/dri/renderD* is accessible (or set TRICKPLAY_VAAPI_DEVICE), and install Mesa VA/Vulkan drivers (some distros need extra HEVC packages such as mesa-va-drivers-freeworld).

If -init_hw_device vulkan fails even though libvulkan is installed, export the ICD path before starting Kodi (or in the service environment):

export VK_ICD_FILENAMES=/usr/share/vulkan/icd.d/nvidia_icd.json   # or amd_icd64.json, etc.
export VK_LAYER_PATH=/usr/share/vulkan/explicit_layer.d   # if needed

Then verify:

/path/to/ffmpeg -hide_banner -init_hw_device vulkan=vk \
  -f lavfi -i nullsrc -frames:v 1 -f null -

# Zero-copy interop (replace render node as needed):
/path/to/ffmpeg -hide_banner \
  -init_hw_device vaapi=va:/dev/dri/renderD128 \
  -init_hw_device vulkan=vk@va \
  -f lavfi -i nullsrc -frames:v 1 -f null -

Generator subprocesses inherit the Kodi process environment (VK_* vars are not stripped). The add-on logs a hint when Vulkan init fails but ICD configs are present on disk, and when VA-API/libplacebo/interop are missing for hardware decode.

Installation

1. Zip the service.trickplay folder so addon.xml is at the root of the archive.
2. In Kodi: Settings → Add-ons → Install from zip file.
3. Install the skin snippet via Install skin snippet (current skin) in add-on settings, or merge manually into DialogSeekBar.xml (required).
4. Enable the service if needed (Settings → Add-ons → My add-ons → Services).
5. For preview cropping: use Install preview tools in add-on settings (Pillow). For generation: enable the generator and use Install preview tools or batch Run — see Custom ffmpeg for HDR generation.
6. Tail kodi.log for [service.trickplay] messages when debugging.

Supported paths

• Direct local video files (.mkv, .mp4, …)
• NFS/SMB paths (nfs://, smb://) and OS mount paths (e.g. /storage/remote-shares/…) — playback sidecar lookup tries all path forms; listing prefers the OS mount when available, then Kodi VFS. Generation also prefers an OS-mounted path when the share is mounted on the device, otherwise streams the file through VFS into ffmpeg (slower, one full read per file)
• .strm files that point to a local or network path

Plugin / HTTP streams are skipped because Jellyfin trickplay sidecars are stored on disk next to the source file.

Example

For a 4005 s episode with 10 s intervals:

• 401 thumbnails across 5 tile JPEGs (0.jpg–3.jpg full, 4.jpg partial)
• Seeking to 2:30 → thumb index 15 → tile 0.jpg, row 1, column 5