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Frequently Asked Questions (FAQ)

General Questions

Q: Is CicadaGallery free to use?

A: Yes, basic features are free. The free version is limited to 100 videos and 5 scenes for scene detection. Purchase a premium license to unlock all features without limits.

Q: What operating systems are supported?

A: Currently, only Windows 10/11 (64-bit) is supported. macOS and Linux versions are planned for future releases.

Q: Is installation required?

A: No, it’s a portable application. Just extract the ZIP file and you’re ready to go.

Video Playback

Q: Videos won’t play

A: Please check the following:

  1. The bundled mpv folder is correctly placed
  2. The video file is not corrupted
  3. The video format is supported (MP4, AVI, MKV, MOV, WMV, FLV, WebM, M4V, MPG, MPEG)

Q: Thumbnails are not generated

A: Make sure FFmpeg is working correctly. The bundled ffmpeg folder is required.

Q: The player doesn’t stay on top during playback

A: Go to Options → Player Settings → Enable “Always on Top”.

Scene Detection

Q: Scene detection takes a long time

A: Scene detection analyzes the entire video, so longer videos take more time. Videos over 1 hour may take several minutes.

Q: No scenes are detected

A: Possible causes:

  1. The video has few scene changes
  2. FFmpeg is not working correctly
  3. Free version limit (5 scenes max) has been reached

Licensing

Q: How do I enter my license key?

A: Go to Options → Premium License section and click “Enter License Key”, then enter your license key.

Q: Can I use my license on multiple PCs?

A: A personal license is valid for one PC only. For multiple PCs, please purchase additional licenses.

Q: Does the license expire?

A: No, it’s a one-time purchase with no expiration date.

Troubleshooting

Q: The application won’t start

A: Try the following:

  1. Make sure Visual C++ Redistributable is installed
  2. Try running as administrator
  3. Check if antivirus software is falsely detecting it

Q: Settings keep resetting

A: Make sure you have write permission to the settings file (settings.json). Settings won’t save in read-only folders.

Q: Database seems corrupted

A: First, try restoring from a backup. Go to Options → Data → “Restore from Backup” to select from available backups. If no backup is available, delete the database.db file and restart. A new database will be created, but registered video information will be lost.

Backup

Q: Where are backups stored?

A: Backups are stored in the backups folder within the application directory. Filenames include the date and time (e.g., database_backup_20260113_120000.db).

Q: Can I change the auto-backup frequency?

A: Currently, auto-backup is fixed at every 3 days. To create a manual backup, go to Options → Data → “Create Backup”.

Q: How many backup generations are kept?

A: The latest 3 generations are automatically retained. Older backups are automatically deleted when new backups are created.

Q: What happens when I restore from a backup?

A: The database will revert to the selected backup point. After restoration, thumbnails for videos that don’t have them will be automatically regenerated.

Contact

If the above doesn’t solve your issue, please contact us via GitHub Issues.

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