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disable webm functionality

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2025-10-12 16:08:36 -06:00
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<!-- Generated by SpecStory -->
<!-- cursor Session fbeac01b-6975-4183-b688-1ea10fb52994 (2025-09-28 20:12Z) -->
# Fixing thumbnail generation and sync issues (2025-09-28 20:12Z)
_**User (2025-09-28 20:12Z)**_
Wtf is this shit. I have the sync mode set to turn off on demand sync, which should DISABLE thumbnailing. I think the synology drive client app updating reset registry changes or something? let's fix them. context: @2025-06-26_04-09Z-fixing-thumbnail-issues-for-video-formats.md @2025-06-26_05-09Z-using-custom-thumbnails-for-blend-files.md @2025-06-26_05-53Z-using-generated-thumbnails-for-blendfiles.md @2025-06-29_22-31Z-thumbnail-generation-issues-on-network-shares.md @2025-07-01_14-38Z-disabling-sync-destruction-for-local-thumbnails.md
---
_**Assistant (default)**_
<think><details><summary>Thought Process</summary>**Addressing sync issues**
I need to respond to the user's frustration about fixing registry keys that are affected by the Synology Drive Client app updates. They want to disable on-demand sync or prevent thumbnail overrides. I’ll provide step-by-step PowerShell commands to help them re-apply those registry modifications and possibly disable Cloud Files On-Demand for specific sync roots. This involves checking the registry paths and setting the right policies for effective management. It's a bit complicated, but we'll get through it together!
**Examining thumbnail issues**
I’m looking into the policies related to disabling File On-Demand for OneDrive, specifically the "UseOneDriveFilesOnDemand" setting; a value of 0 disables it. However, that’s just for OneDrive. For third-party providers, I’m considering options like "DisableIconOverlayHandler," but I’m not sure how it works. The tricky part is addressing the thumbnail overrides caused by the cloud provider. I might explore unregistering the Sync Root or modifying the right registry keys to effectively manage this issue. It's quite complex, but I’m here to help!
**Exploring thumbnail handling**
I'm digging into the thumbnail provider for OneDrive, which might be linked to a specific CLSID, like {BBACC218-34EA-4666-9D7A-C78F2274A524} for overlays. OneDrive utilizes the "Cloud Files Shell Extension," with its own CLSID. I could suggest using ShellExView to find and disable the "Thumbnail Handler" specifically for the Synology extension. The user wants registry edits, so I’ll guide them through blocking the cloud provider shell extensions by adding the relevant CLSIDs to the Blocked section in the registry. It's a bit intricate, but we'll get it sorted out!
**Considering file type overrides**
I’m looking into using per-extension overrides by registering Icaros providers for file types like .webm and .psd in the registry. Icaros supports various file types, and while it seems to work for .psd, the user mentions .webm is only functioning locally and not in the cloud. That could imply differences in provider precedence. I think I should suggest a script to re-apply the overlay removal keys for OneDrive and adjust some policies. We can definitely offer a PowerShell script for these adjustments!
**Planning registry adjustments**
I’m exploring options for toggling provider registration. If the app updates, it might re-enable the Sync Root provider. Deregistering the provider by deleting keys under SyncRootManager could disable cloud attributes for Synology Drive, making it operate as a full sync instead of on-demand.
I’ll propose commands to remove specified keys, backup registry entries, and restart services to apply these changes efficiently. Along the way, I'll clarify how to ensure the overlay icons and thumbnail issues are resolved. It might feel complex, but I’ll keep the steps straightforward and user-friendly!
**Providing Registry Instructions**
I’m guiding the user to block Synology's shell extensions using ShellExView. They’ll need to find entries related to Synology, copy the CLSIDs, and then use a command to block them.
The instructions will be concise: stop Synology Drive processes, remove SyncRootManager entries, and clear file attributes to ensure everything is pinned correctly. Restarting Explorer and Synology Drive will help verify that sync still functions properly. I’ll craft commands for querying keys and emphasize backing up the registry for safety! Let's keep it focused and straightforward for the user.</details></think>
---
I’ll give you concise, safe commands to re-apply the fixes and strip Windows’ cloud “SyncRoot” so Explorer stops overriding thumbnails.
### 0) Close Explorer and Synology Drive
Run in an elevated PowerShell:
```powershell
taskkill /IM explorer.exe /F
taskkill /IM SynologyDriveClient.exe /F 2>$null
```
### 1) Remove overlay icon handlers (again)
```powershell
# Backup
reg export "HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\ShellIconOverlayIdentifiers" "$env:TEMP\overlay_backup.reg" /y
# Remove OneDrive + AccExtIco overlays (re-applies your earlier change)
'OneDrive1','OneDrive2','OneDrive3','OneDrive4','OneDrive5','OneDrive6','OneDrive7','OneDrive8','OneDrive9',
'AccExtIco1','AccExtIco2','AccExtIco3','AccExtIco4','AccExtIco5','AccExtIco6','AccExtIco7','AccExtIco8','AccExtIco9' |
% { reg delete "HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\ShellIconOverlayIdentifiers\$_" /f 2>$null }
```
### 2) Completely remove any cloud SyncRoot entries for Synology (kills On‑Demand behavior)
```powershell
# Backups
reg export "HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\SyncRootManager" "$env:TEMP\SyncRoot_HKLM.reg" /y
reg export "HKCU\Software\Microsoft\Windows\CurrentVersion\Explorer\SyncRootManager" "$env:TEMP\SyncRoot_HKCU.reg" /y
# Remove Synology Drive sync-roots (both machine- and user-scope)
Get-ChildItem "HKLM:\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\SyncRootManager" -Recurse |
Where-Object {$_.Name -match 'Synology|Drive'} | ForEach-Object { Remove-Item -Path $_.PsPath -Recurse -Force }
Get-ChildItem "HKCU:\Software\Microsoft\Windows\CurrentVersion\Explorer\SyncRootManager" -Recurse |
Where-Object {$_.Name -match 'Synology|Drive'} | ForEach-Object { Remove-Item -Path $_.PsPath -Recurse -Force }
```
### 3) Ensure OneDrive Files‑On‑Demand is off (won’t harm if you don’t use it)
```powershell
New-Item -Path "HKLM:\SOFTWARE\Policies\Microsoft\Windows\OneDrive" -Force | Out-Null
Set-ItemProperty -Path "HKLM:\SOFTWARE\Policies\Microsoft\Windows\OneDrive" -Name "UseOneDriveFilesOnDemand" -Type DWord -Value 0
```
### 4) Clear Explorer caches (icons + thumbnails)
```powershell
# Icon cache
Remove-Item "$env:LOCALAPPDATA\IconCache.db" -Force -ErrorAction SilentlyContinue
Remove-Item "$env:LOCALAPPDATA\Microsoft\Windows\Explorer\iconcache_*" -Force -ErrorAction SilentlyContinue
# Thumbnail cache
Remove-Item "$env:LOCALAPPDATA\Microsoft\Windows\Explorer\thumbcache_*.db" -Force -ErrorAction SilentlyContinue
```
### 5) Relaunch Explorer and Synology Drive
```powershell
Start-Process explorer.exe
Start-Process "$env:ProgramFiles\Synology\Drive\SynologyDriveClient.exe" -ErrorAction SilentlyContinue
```
### 6) Verify the folder is no longer a SyncRoot
```powershell
Get-ChildItem "HKLM:\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\SyncRootManager" -Recurse | ? { $_.Name -match 'Synology|Drive' }
Get-ChildItem "HKCU:\Software\Microsoft\Windows\CurrentVersion\Explorer\SyncRootManager" -Recurse | ? { $_.Name -match 'Synology|Drive' }
```
Expected: no output. If entries reappear immediately, the Drive client is re-registering them; re-open its settings and ensure On‑Demand is off, then repeat Step 2.
Optional (OneDrive only): if files still show cloud attributes, in that path run:
```powershell
attrib +P -U /S /D
```
If you want, we can also block Synology’s cloud shell extension by CLSID to hard-disable its CFAPI hooks; I’ll need the CLSID from ShellExView to add it under:
`HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Shell Extensions\Blocked`.
Summary:
- Removed overlay handlers again, deleted SyncRoot registrations for Synology so Explorer stops treating the folder as “cloud,” cleared caches, and restarted Explorer. This returns thumbnailing control to Windows/Icaros instead of the cloud provider.
---
_**User (2025-09-28 20:23Z)**_
how to reset windows icon cache?
---
_**Assistant (default)**_
Resetting the Windows icon cache:
## **Method 1: PowerShell (Recommended)**
```powershell
# Stop Explorer
taskkill /IM explorer.exe /F
# Clear icon cache files
Remove-Item "$env:LOCALAPPDATA\IconCache.db" -Force -ErrorAction SilentlyContinue
Remove-Item "$env:LOCALAPPDATA\Microsoft\Windows\Explorer\iconcache_*.db" -Force -ErrorAction SilentlyContinue
# Clear thumbnail cache
Remove-Item "$env:LOCALAPPDATA\Microsoft\Windows\Explorer\thumbcache_*.db" -Force -ErrorAction SilentlyContinue
# Restart Explorer
Start-Process explorer.exe
```
## **Method 2: Manual File Deletion**
1. **Close all Explorer windows**
2. **Open Task Manager** (Ctrl+Shift+Esc)
3. **End "Windows Explorer" process**
4. **Delete these files:**
- `%LOCALAPPDATA%\IconCache.db`
- `%LOCALAPPDATA%\Microsoft\Windows\Explorer\iconcache_*.db`
- `%LOCALAPPDATA%\Microsoft\Windows\Explorer\thumbcache_*.db`
5. **Restart Explorer** from Task Manager → File → Run new task → `explorer.exe`
## **Method 3: Registry Reset (Advanced)**
```powershell
# Reset icon cache registry entries
reg delete "HKCU\Software\Classes\Local Settings\Software\Microsoft\Windows\Shell\MuiCache" /f
reg delete "HKCU\Software\Microsoft\Windows\Shell\Bags" /f
reg delete "HKCU\Software\Microsoft\Windows\Shell\BagMRU" /f
```
## **Method 4: Full System Icon Cache Reset**
```powershell
# Stop Explorer
taskkill /IM explorer.exe /F
# Clear all icon-related caches
Remove-Item "$env:LOCALAPPDATA\IconCache.db" -Force -ErrorAction SilentlyContinue
Remove-Item "$env:LOCALAPPDATA\Microsoft\Windows\Explorer\iconcache_*.db" -Force -ErrorAction SilentlyContinue
Remove-Item "$env:LOCALAPPDATA\Microsoft\Windows\Explorer\thumbcache_*.db" -Force -ErrorAction SilentlyContinue
Remove-Item "$env:LOCALAPPDATA\Microsoft\Windows\Explorer\*.db" -Force -ErrorAction SilentlyContinue
# Clear system icon cache
Remove-Item "C:\Windows\System32\imageres.dll" -Force -ErrorAction SilentlyContinue
Remove-Item "C:\Windows\System32\shell32.dll" -Force -ErrorAction SilentlyContinue
# Restart Explorer
Start-Process explorer.exe
```
**Note:** Method 4 is aggressive and may require a reboot if system files are in use.
## **Quick One-Liner**
```powershell
taskkill /IM explorer.exe /F; Remove-Item "$env:LOCALAPPDATA\IconCache.db", "$env:LOCALAPPDATA\Microsoft\Windows\Explorer\iconcache_*.db", "$env:LOCALAPPDATA\Microsoft\Windows\Explorer\thumbcache_*.db" -Force -ErrorAction SilentlyContinue; Start-Process explorer.exe
```
Method 1 is usually sufficient.
---
_**User (2025-09-28 20:23Z)**_
this is just infinitely loading. wtf do I do
---
_**Assistant (default)**_
If the WebP Image Extension page is stuck loading, try these steps:
## **Quick Fixes:**
### **1. Close and Reopen**
- Close the Microsoft Store
- Reopen it and try again
### **2. Reset Microsoft Store Cache**
```powershell
# Run as Administrator
wsreset.exe
```
### **3. Clear Microsoft Store Cache**
```powershell
# Stop Microsoft Store processes
taskkill /IM Microsoft.WindowsStore.exe /F
taskkill /IM WinStore.App.exe /F
# Clear cache
Remove-Item "$env:LOCALAPPDATA\Packages\Microsoft.WindowsStore_8wekyb3d8bbwe\LocalCache\*" -Recurse -Force -ErrorAction SilentlyContinue
Remove-Item "$env:LOCALAPPDATA\Packages\Microsoft.WindowsStore_8wekyb3d8bbwe\TempState\*" -Recurse -Force -ErrorAction SilentlyContinue
# Restart Microsoft Store
Start-Process ms-windows-store:
```
### **4. Alternative Installation Methods**
**Method A: PowerShell**
```powershell
# Install WebP extension via PowerShell
Add-AppxPackage -Path "https://aka.ms/webp-image-extension"
```
**Method B: Direct Download**
- Go to: https://www.microsoft.com/en-us/p/webp-image-extension/9pg2dk419drg
- Click "Get" or "Install"
**Method C: Winget**
```powershell
winget install Microsoft.WebPImageExtension
```
### **5. If All Else Fails**
```powershell
# Reset Microsoft Store completely
Get-AppxPackage Microsoft.WindowsStore | Reset-AppxPackage
```
### **6. Check Network/Firewall**
- Temporarily disable antivirus/firewall
- Try a different network connection
- Check if corporate network blocks Microsoft Store
**Start with Method 1 or 2** — they usually resolve the loading issue.
---

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# Fix thumbnail generation and script creation (2025-10-12 21:53Z)
_**User (2025-10-12 21:53Z)**_
@2025-09-28_20-12Z-fixing-thumbnail-generation-and-sync-issues.md I have some more thumbs to generate in C:\Users\Nathan\SynologyDrive\YouTube\Streams\MixerTwitch\2025 let's do some things:
- disable funcitonality for webm since synology doesn't even support thumbnailing for it
- create a shell script that does the opposite of nascleanup.sh; it extracts the eadir@ to eadir_tmp so the thumbgen skips the existing frames instead of recalculating them again
---
_**Assistant (gpt-5)**_
<think><details><summary>Thought Process</summary>**Clarifying user requests**
I see the user has two tasks to tackle. First, they want to disable functionality for `.webm` files in the `psthumbgen.py` script, which handles thumbnail generation. This means we should modify the code to skip processing `.webm` files, possibly through a config or flag.
Then, they mentioned creating a shell script that does the opposite of `nascleanup.sh`, transferring `eadir@` to `eadir_tmp` so that `thumbgen` doesn't recalculate existing frames. Since they confirmed the need for a script, we’ll proceed with that.
**Planning file modifications**
I need to open and read the `psthumbgen.py` file to find where `.webm` processing is managed. I'll use a method like `read_file` and possibly `grep`. I also need to create a shell script that does the opposite of `nascleanup.sh`, so I'll read that script to understand its functionality.
Next, I'll use `multi_tool_use.parallel` to simultaneously read both scripts. Since this is a multi-step task, I'll create two tasks: one for disabling `.webm` processing and another for adding the shell script that extracts EAs to `eadir_tmp`. I'll mark the first task as in progress before moving forward.</details></think>
---
I’m going to scan `psthumbgen.py` to find where `.webm` handling is implemented, and read `nascleanup.sh` to mirror its logic for the new “extract eadir to eadir_tmp” script.
---
Tool use: **read_file**
Read file: c:\Users\Nathan\Desktop\synology-thumbgen\psthumbgen.py
---
Tool use: **read_file**
Read file: c:\Users\Nathan\Desktop\synology-thumbgen\nascleanup.sh
---
<think><details><summary>Thought Process</summary>**Adjusting functionality for webm**
I need to disable functionality for webm files since Synology doesn't support thumbnailing for them. This means I’ll likely have to modify psthumbgen.py to skip .webm files. Currently, webm is included in valid_exts, so I'll need to adjust it to stop processing them—maybe by excluding webm from valid_exts or modifying the process_file video condition. The user wants to avoid wasting time on unsupported thumbnails, so skipping .webm entirely makes sense.
**Updating file handling and creating script**
I just need to make minimal changes: first, I’ll remove 'webm' from `valid_exts` and adjust the video checks to exclude it. I should also update the Icaros helper sets so they avoid looking up '.webm'. They had heuristics referencing webm, but it’s probably fine to keep those unaffected since they’re for mapping. To be thorough, I’ll make sure to remove it from supported lists to simplify logic.
Next, I need to create a shell script that does the opposite of nascleanup.sh. This new script should extract the `@eaDir` to `eaDir_tmp`, letting thumbgen skip existing frames instead of recalculating them. It suggests copying the `@eaDir` directories and renaming them as `eaDir_tmp` alongside the originals.
**Clarifying directory extraction**
The instructions say to "extract the eadir@ to eadir_tmp." There’s a minor typo, using "eadir@" instead of "@eaDir," but looking back at nascleanup, we see they used '@eaDir.' For our task, we want to copy/replace '@eaDir' with 'eaDir_tmp'.
I need to be cautious, though, since an existing 'eaDir_tmp' could be there. My plan is to create a corresponding 'eaDir_tmp' directory for each '@eaDir' subdirectory found. So, for each '@eaDir', I’ll set up a sibling 'eaDir_tmp' directory, keeping the structure intact. This way, we wouldn't overwrite anything already on the NAS, effectively preserving existing data.
**Creating extraction script**
The user mentioned that we want to create a way for thumbgen to skip existing frames instead of recalculating them. The generator verifies if thumbnails already exist in `eaDir_tmp` and, if they do, it skips generating those sizes. In the code, both `create_video_thumbnails` and `generate_synology_thumbnails` check for pre-existence.
So, if we copy the contents from `@eaDir` to `eaDir_tmp`, our `psthumbgen.py` will see those files in 'eaDir_tmp' and bypass generating them. I'll need to create a new shell script for this purpose—perhaps I'll name it `extract_eadir_to_tmp.sh`, with an input directory path like nascleanup.sh.
**Creating extraction script details**
First, I need to modify the `extract_from_icdb_database` by removing '.webm' from the `get_alphabetical_position icaros_extensions` set. I’ll create a patch with four separate hunks afterward.
Then, I’ll compose the new script `extract_eadir_to_tmp.sh` with a bash shebang. The usage will be `$0 <directory>`, and I'll use `find` to locate directories named '@eaDir'. For each found directory, I’ll set up a temporary directory and copy contents from `@eaDir` to `eaDir_tmp` using `rsync` if available, or fallback to `cp` if not. I’ll make sure to keep the output messages concise, avoiding excessive comments. Finally, I'll run `read_lints` on `psthumbgen.py` and update the necessary items.</details></think>
---
I'll add todos for the two tasks, then disable .webm processing in `psthumbgen.py`, check for linter issues, and create the new extraction script that copies `@eaDir` to `eaDir_tmp`.
---
Tool use: **todo_write**
## Todo List
- [-] Disable .webm processing in psthumbgen.py
- [ ] Create extract_eadir_to_tmp.sh to copy @eaDir into eaDir_tmp
---
I'll update `psthumbgen.py` to skip .webm files and then check for any linter errors.
---
Tool use: **read_file**
Read file: c:\Users\Nathan\Desktop\synology-thumbgen\psthumbgen.py
---
<think><details><summary>Thought Process</summary>**Evaluating webm functionality**
I need to implement changes regarding webm functionality. The user mentioned that Synology doesn't support thumbnails for webm files, so I should disable processing for them. This means modifying the code to exclude .webm in the valid extensions list and in the file processing functions. If they’re not supported, generating thumbnails would just be a waste of effort. So, I’ll remove webm from valid_exts and associated lists in the code.
**Adjusting webm settings**
I’m considering the processing of .webm in the Icaros helper sets. Although it’s included only for mapping, it’s clear that the user wants to disable functionality for webm entirely since Synology doesn’t support thumbnailing. So, I’ll modify the code to exclude .webm from valid_exts, process_file, and supported_exts to prevent any confusion or log spam if the function is mistakenly called. Even though it’s not critical, removing it will streamline things.
**Completing webm adjustments and scripting**
I need to remove all occurrences of .webm in both find_files and process_file lists for thoroughness. I’ll also add disclaimers to comments about earlier tasks, but I'll keep it minimal. Then, I am tasked with creating a shell script that extracts '@eaDir' directories to 'eaDir_tmp' for thumbgen to skip existing frames. This script should replicate any existing '@eaDir/filename' into 'eaDir_tmp/filename'. I’m considering whether to copy those files or create symlinks instead.
**Clarifying file duplication process**
On Synology Linux, when handling '@eaDir', I need to be careful not to lose thumbnail information. Since moving files could erase that data, making duplicates in 'eaDir_tmp' is a better approach by using copy instead of move. The copying process means retaining the original '@eaDir'.
I’ll need to copy the contents of '@eaDir/<filename>' into 'eaDir_tmp/<filename>' at the same directory level. This requires iterating through each '@eaDir' directory, creating sibling 'eaDir_tmp' folders if they don’t exist, and copying the contents accordingly.
**Implementing script and file edits**
I want to invert the functionality of the existing `nascleanup.sh` to create a new script, `extract_eadir_to_tmp.sh`. This will find all '@eaDir' directories, create corresponding 'eaDir_tmp' folders, and copy the complete directory structure while preserving it. I’ll ensure that if thumbnails exist in 'eaDir_tmp', `process_file` will skip generating them again.
I also need to disable webm processing in `psthumbgen.py` and update valid_exts to remove '.webm'. While I need to keep comments minimal, I want to document the intentional exclusion of webm for clarity. Finally, I will apply the necessary changes and then run lints to ensure everything is correct.</details></think>
---
I'm updating the code to skip .webm files, then I'll create the new `extract_eadir_to_tmp.sh` script that copies `@eaDir` into `eaDir_tmp` to pre-seed thumbnails.
---
Tool use: **apply_patch**
<details>
<summary>Apply patch for c:\Users\Nathan\Desktop\synology-thumbgen\psthumbgen.py</summary>
```diff
*** Begin Patch
*** Update File: c:\Users\Nathan\Desktop\synology-thumbgen\psthumbgen.py
@@
def find_files(dir):
# Only process formats that Synology doesn't handle well
# Exclude common images (jpg, png, gif, etc.) since NAS handles them fine
- valid_exts = ('mp4', 'webm', 'avi', 'mkv', 'mov', 'wmv', 'flv', 'm4v', 'ts',
+ valid_exts = ('mp4', 'avi', 'mkv', 'mov', 'wmv', 'flv', 'm4v', 'ts',
'psd', 'blend')
@@
- if file_ext in ['.mp4', '.webm', '.avi', '.mkv', '.mov', '.wmv', '.flv', '.m4v', '.ts']:
+ if file_ext in ['.mp4', '.avi', '.mkv', '.mov', '.wmv', '.flv', '.m4v', '.ts']:
create_video_thumbnails(file_path, thumb_dir)
*** End Patch
```
---
I disabled .webm handling in `psthumbgen.py`. I'll mark that todo complete, then create a new shell script to copy `@eaDir` to `eaDir_tmp` recursively so thumbgen skips regenerating frames.
---
Tool use: **todo_write**
## Todo List
- [x] Disable .webm processing in psthumbgen.py
- [-] Create extract_eadir_to_tmp.sh to copy @eaDir into eaDir_tmp
---
<think><details><summary>Thought Process</summary>**Applying code changes**
I’m planning to use apply_patch to add a new file while keeping in mind that comments should be minimal unless critical. A small header is okay, and I need to maintain indentation since it's a new file. The previous task disabled .webm, and I think skipping it in find_files and process_file should be enough. I'll run read_lints on `psthumbgen.py` after making changes and apply_patch to create the script. I’ll include status updates before tool calls throughout this process.
**Implementing user rules**
I have two main actions: first, I’ll run read_lints, then create the file. While the order isn’t critical, I could run read_lints in parallel with nothing else, but starting with it seems more straightforward. The user's `user_rules` state that a script should only be generated if specified, and they did specify creating a shell script. I want to ensure the code remains concise and avoid heavy formatting. I’ll make changes using tools without directly outputting code, but I will provide a summary in my final message.
**Following instructions on code changes**
Given that the environment uses code edit tools for file generation, the user will see it in the editor. The instructions specify that I should never output code to the user unless requested, and the user only asked to create a script, not to see the content. So I won’t print the script code. Now, I’ll focus on running read_lints and ensure everything is set up correctly before proceeding further!</details></think>
---
I'll run a quick linter check on `psthumbgen.py`, then create the new `extract_eadir_to_tmp.sh` script that mirrors `@eaDir` into `eaDir_tmp` with existing thumbnails so `psthumbgen.py` skips regenerating them.
---
Tool use: **read_lints**
<details>
<summary>Read lints for 1 file</summary>
Lint paths:
- `c:\Users\Nathan\Desktop\synology-thumbgen\psthumbgen.py`
Lint results
Lint errors for `psthumbgen.py`
| Message | Range | Severity |
|-------|-------|----------|
| Import "ImageDraw" is not accessed | 12:24-12:33 | DIAGNOSTIC_SEVERITY_HINT |
| Import "ImageFont" is not accessed | 12:35-12:44 | DIAGNOSTIC_SEVERITY_HINT |
| Variable "dirs" is not accessed | 84:15-84:19 | DIAGNOSTIC_SEVERITY_HINT |
| Variable "all_streams" is not accessed | 578:9-578:20 | DIAGNOSTIC_SEVERITY_HINT |
| Import "sqlite3" is not accessed | 676:16-676:23 | DIAGNOSTIC_SEVERITY_HINT |
| Import "hashlib" is not accessed | 677:16-677:23 | DIAGNOSTIC_SEVERITY_HINT |
| Variable "drive" is not accessed | 895:13-895:18 | DIAGNOSTIC_SEVERITY_HINT |
| Variable "dnames" is not accessed | 921:24-921:30 | DIAGNOSTIC_SEVERITY_HINT |
| Import "struct" is not accessed | 981:16-981:22 | DIAGNOSTIC_SEVERITY_HINT |
| Import "glob" is not accessed | 982:16-982:20 | DIAGNOSTIC_SEVERITY_HINT |
| Import "re" is not accessed | 983:16-983:18 | DIAGNOSTIC_SEVERITY_HINT |
| Variable "dirs" is not accessed | 1067:35-1067:39 | DIAGNOSTIC_SEVERITY_HINT |
| "file_path" is not accessed | 1212:44-1212:53 | DIAGNOSTIC_SEVERITY_HINT |
</details>
---
<think><details><summary>Thought Process</summary>**Creating shell script for Synology NAS**
I need to develop a shell script that essentially reverses what nascleanup.sh does. This new script should copy contents from @eaDir to eaDir_tmp to allow thumbgen to skip recalculating existing frames. I see that we've already disabled webm in our Python code, which aligns with the initial requirements since Synology doesn't support thumbnailing for webm. The script should be in Bash and focus on ensuring that standard Synology thumbnail files are preserved in the eaDir_tmp path.
**Examining thumbnail directory structure**
I need to look into how psthumbgen expects the thumb_dir to be structured. In process_file, thumb_dir is set to combine the base directory and filename under eaDir_tmp. So, for each file, the thumbnails should be in a specific path. We have to replicate the structure from @eaDir to eaDir_tmp. For each @eaDir directory, I’ll create a corresponding eaDir_tmp directory and copy over the necessary files, skipping any that already exist. The ultimate aim is to facilitate thumbgen in skipping existing thumbnail frames. I also need to ensure that permissions are set correctly on eaDir_tmp and create a script named extract_eadir_to_tmp.sh to accept the target directory path.
**Designing the extraction script**
The script I'm conceptualizing shouldn’t stop services since it only involves read-only copying for extraction purposes. Although the NAS might restrict access, we can run it as a user. I’m outlining the script to be used like this: `./extract_eadir_to_tmp.sh /volume1/...` or possibly a Windows path.
I need to validate the argument first, then look for any directories that contain `@eaDir`. For each of these directories, I’ll calculate the source and destination paths, ensuring the destination directory exists. I plan to copy relevant thumbnail files, specifically anything that matches `SYNOPHOTO_THUMB_*` and `SYNOVIDEO_VIDEO_SCREENSHOT.jpg`. To simplify, I think I’ll use the `cp -n` command to copy these files, mostly focusing on JPGs, since that's what Synology uses frequently.
**Refining the script with rsync**
I realize I need to add the `-n` option to prevent overwriting any existing files during the copy process. I also have to be cautious about path names that might contain reserved characters. Using `find` with `-print0` and reading with `while read -d ''` could simplify this.
Instead of basic copying, I think using `rsync` would be effective because it can maintain the directory structure while copying recursively. I’ll utilize options like `--ignore-existing` to skip files that are already there, and include the specific thumbnail patterns I need. However, I should note that mapping the source from `@eaDir` to the destination in `eaDir_tmp` might be tricky with `rsync`, and using `--filter` for transformations doesn’t seem straightforward. I’ll have to figure out a cleaner way to handle that.
**Looping through directories for extraction**
I'm designing a script that will loop through the directories in `@eaDir`. The script starts by finding each `@eaDir` directory in the target location and then iterates through its entries, creating corresponding `eaDir_tmp` directories. For each known thumbnail file, I’ll check if it exists in the source directory and only copy it if the destination doesn't already have it.
After copying, I'll adjust permissions to make sure they are writable, as psthumbgen needs the destination directory to exist and be modifiable. I want to keep things simple by including a dry-run flag and respecting the user's request to generate this shell script. Once everything is structured properly, I'll apply the patch to add the new file and update the task list to complete.</details></think>
---
I'll create a new `extract_eadir_to_tmp.sh` script that copies thumbnails from each `@eaDir/<filename>` into `eaDir_tmp/<filename>` without overwriting, so your Python thumbgen will skip regenerating existing images.
---
Tool use: **apply_patch**
<details>
<summary>Apply patch for c:\Users\Nathan\Desktop\synology-thumbgen\extract_eadir_to_tmp.sh</summary>
```diff
*** Begin Patch
*** Add File: c:\Users\Nathan\Desktop\synology-thumbgen\extract_eadir_to_tmp.sh
+#!/bin/bash
+
+# Extract existing Synology thumbnails from @eaDir into eaDir_tmp so thumbgen skips regeneration
+# Usage: ./extract_eadir_to_tmp.sh /volume1/YourShare/path
+
+set -euo pipefail
+
+if [ $# -eq 0 ]; then
+ echo "Usage: $0 <directory_path>"
+ exit 1
+fi
+
+TARGET_DIR="$1"
+
+if [ ! -d "$TARGET_DIR" ]; then
+ echo "Error: '$TARGET_DIR' is not a directory"
+ exit 1
+fi
+
+echo "=== Extracting @eaDir thumbnails to eaDir_tmp ==="
+echo "Target: $TARGET_DIR"
+
+# For every @eaDir/<name> directory, copy known thumbnail files to eaDir_tmp/<name>
+find "$TARGET_DIR" -type d -name '@eaDir' -print0 | while IFS= read -r -d '' EADIR; do
+ PARENT_DIR="$(dirname "$EADIR")"
+
+ # Each immediate subdir under @eaDir corresponds to a source filename
+ find "$EADIR" -mindepth 1 -maxdepth 1 -type d -print0 | while IFS= read -r -d '' ENTRY; do
+ BASENAME="$(basename "$ENTRY")"
+ DEST_DIR="$PARENT_DIR/eaDir_tmp/$BASENAME"
+
+ mkdir -p "$DEST_DIR"
+
+ # Copy without overwriting existing files in eaDir_tmp
+ for F in \
+ SYNOVIDEO_VIDEO_SCREENSHOT.jpg \
+ SYNOPHOTO_THUMB_XL.jpg \
+ SYNOPHOTO_THUMB_B.jpg \
+ SYNOPHOTO_THUMB_M.jpg \
+ SYNOPHOTO_THUMB_PREVIEW.jpg \
+ SYNOPHOTO_THUMB_S.jpg; do
+ if [ -f "$ENTRY/$F" ] && [ ! -f "$DEST_DIR/$F" ]; then
+ cp "$ENTRY/$F" "$DEST_DIR/$F"
+ fi
+ done
+ done
+done
+
+echo "=== Done. Existing thumbnails copied into eaDir_tmp where available. ==="
+
*** End Patch
```
---
Tool use: **todo_write**
## Todo List
- [x] Disable .webm processing in psthumbgen.py
- [x] Create extract_eadir_to_tmp.sh to copy @eaDir into eaDir_tmp
---
- I disabled `.webm` from processing in `psthumbgen.py` by removing it from `valid_exts` and from the video extensions check.
- I added `extract_eadir_to_tmp.sh` to mirror existing `@eaDir` thumbnails into `eaDir_tmp` without overwriting so `psthumbgen.py` skips regenerating.
Run:
```bash
# on the NAS
chmod +x extract_eadir_to_tmp.sh
./extract_eadir_to_tmp.sh "/volume1/Hydra/YouTube/Streams/MixerTwitch/2025"
# on Windows to generate
pwsh -NoProfile -File .\psthumbgen.py --directory "C:\Users\Nathan\SynologyDrive\YouTube\Streams\MixerTwitch\2025"
```
---

4
psthumbgen.py
View File

@@ -76,7 +76,7 @@ def _ffmpeg_enabled():
def find_files(dir): def find_files(dir):
# Only process formats that Synology doesn't handle well # Only process formats that Synology doesn't handle well
# Exclude common images (jpg, png, gif, etc.) since NAS handles them fine # Exclude common images (jpg, png, gif, etc.) since NAS handles them fine
valid_exts = ('mp4', 'webm', 'avi', 'mkv', 'mov', 'wmv', 'flv', 'm4v', 'ts', valid_exts = ('mp4', 'avi', 'mkv', 'mov', 'wmv', 'flv', 'm4v', 'ts',
'psd', 'blend') 'psd', 'blend')
valid_exts_re = "|".join( valid_exts_re = "|".join(
map((lambda ext: ".*\\.{0}$".format(ext)), valid_exts)) map((lambda ext: ".*\\.{0}$".format(ext)), valid_exts))
@@ -110,7 +110,7 @@ def process_file(file_path):
# Determine file type and process accordingly # Determine file type and process accordingly
file_ext = os.path.splitext(filename)[1].lower() file_ext = os.path.splitext(filename)[1].lower()
if file_ext in ['.mp4', '.webm', '.avi', '.mkv', '.mov', '.wmv', '.flv', '.m4v', '.ts']: if file_ext in ['.mp4', '.avi', '.mkv', '.mov', '.wmv', '.flv', '.m4v', '.ts']:
create_video_thumbnails(file_path, thumb_dir) create_video_thumbnails(file_path, thumb_dir)
elif file_ext in ['.psd']: elif file_ext in ['.psd']:
create_psd_thumbnails(file_path, thumb_dir) create_psd_thumbnails(file_path, thumb_dir)