rmsitzandClaude Sonnet 5
24a07dd3e6
Settings gets a "Precompute Video Lengths" button that walks the whole library in a background thread, populating every course's persistent ffprobe duration cache up front instead of paying that cost the first time each course card is viewed. Progress polls live while it runs and picks back up correctly if you navigate away mid-scan. Separately, the loaded-course lesson tree only ever showed a lesson's duration once you'd actually played it (from progress.json) - a freshly opened course had no time info anywhere, including the course header's "~X remaining" line, which existed but was always empty as a result. apply_progress_to_tree now falls back to the same ffprobe cache for any lesson without a known duration yet, so per-lesson lengths and the remaining-time estimate work from the very first visit. Refactored the duration-cache read/write into a shared helper so the library browser, the prewarm button, and this tree view all go through one path. Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>
OfflineU: Self-Hosted Local Course Loader & Progress Tracker
OfflineU is a sleek, self-hosted web app designed to load and view your offline video, audio, text, and quiz-based training courses. Whether it's Udemy downloads, "open sourced" training archives, or personal content, OfflineU turns your course folder into a fully navigable dashboard with automatic progress tracking.
✨ Features
- 📁 Dynamic folder parsing: Scans and maps your course structure into a browsable tree view.
- 🎥 Video & Audio player: Integrated media player with resume & completion tracking.
- 📄 Text & HTML viewer: Supports .txt, .md, .html, .pdf, and more.
- ✅ Lesson progress tracking: Auto-saves your time spent and marks lessons as completed.
- ♻️ Continue where you left off: Resume instantly from your last-accessed lesson.
- 💾 Local-first & private: 100% offline. No cloud, no tracking, no nonsense.
- 🧑💻 Works with any course format: No metadata required, just structured folders.
- 🧠 Ideal for hoarders, students, or offline learning setups
🗈️ Screenshots
🛠️ Installation
🔁 Quick Start (Local)
-
Clone the repo:
git clone https://github.com/WhiskeyCoder/OfflineU.git cd OfflineU -
Install Python dependencies:
pip install flask -
Run the app:
python offlineu_core.py --create-templates -
Open your browser:
http://127.0.0.1:5000
📂 Folder Structure Example
MyCourse/
├── Section 1/
│ ├── 01 - Intro.mp4
│ ├── 02 - Setup Guide.pdf
│ └── 03 - Quiz.html
├── Section 2/
│ ├── 04 - Advanced Tips.mp4
│ └── resources/
│ └── extras.md
└── .offlineu_progress.json ← created automatically
🌟 File types are detected automatically — videos, audio, quizzes, and docs.
📁 Supported File Types
| Type | Extensions |
|---|---|
| Videos | .mp4, .mkv, .webm, .mov, .avi, etc. |
| Audio | .mp3, .wav, .aac, etc. |
| Docs | .txt, .md, .html, .pdf, .docx |
| Subtitles | .srt, .vtt |
| Quizzes | Detected if file name contains quiz, exam, test, etc. |
⚙️ CLI Options
| Option | Description |
|---|---|
--host |
Set host (default: 127.0.0.1) |
--port |
Set port (default: 5000) |
--debug |
Enable Flask debug mode |
--create-templates |
Generate default HTML templates |
<course_path> |
Load course directly at startup |
🧠 Roadmap
- Base function and testing
- Multi-user profile support
- Dark/light theme switcher
- Built-in quiz interactivity
- Import/export course metadata
- Mobile app wrapper
- Self hosted Docker Deployment
💬 Community
Join the development, suggest features, or ask questions via:
- GitHub Issues: https://github.com/WhiskeyCoder/OfflineU/issues
🛡️ License
MIT License — Use freely, modify locally, share widely.
✨ Author
Built with ❤️ by @WhiskeyCoder Inspired by the dream of learning freely, offline, and without limits.