🎬 Video Caption Generator

Automatically transcribe and burn subtitles into videos using OpenAI Whisper — optimized for Indonesian language content. 100% free, no API key needed.

✨ Features

• 🎙️ Auto-transcription using stable-ts (enhanced Whisper)
• 🟡 Karaoke-style highlighting — active word turns yellow
• 📐 Dynamic subtitle sizing based on video resolution
• 🔥 Subtitles burned directly into output video via FFmpeg
• ⚡ Batch processing — drop multiple videos, get all outputs at once

📸 Demo

Input	Output
Raw video (no subtitles)	Video with auto-generated burned-in captions

🛠️ Setup

1. Siapkan folder di Google Drive

Buat struktur folder berikut di MyDrive:

MyDrive/
└── Whisper/
    ├── video/        ← taruh video input di sini
    ├── caption/      ← file .ass subtitle (auto-generated)
    └── output/       ← video hasil akhir dengan subtitle

Folder caption/ dan output/ akan dibuat otomatis saat notebook dijalankan.

2. Masukkan video

Taruh video yang ingin ditambahkan caption ke folder MyDrive/Whisper/video/.

3. Buka notebook di Google Colab

Upload file GenerateCaption.ipynb ke Google Colab.

4. Pilih runtime GPU

Runtime → Change runtime type → T4 GPU → Save

5. Jalankan notebook

Runtime → Run all — notebook akan otomatis:

• Install dependencies (stable-ts, ffmpeg)
• Mount Google Drive
• Proses semua video di folder video/
• Simpan hasil ke folder output/

6. Ambil hasil

Video dengan subtitle sudah tersedia di MyDrive/Whisper/output/.

⚠️ Setelah selesai, matikan sesi Colab via Runtime → Disconnect and delete runtime agar kuota GPU gratis tidak terpakai sia-sia.

⚙️ Configuration

At the top of the main cell, you can adjust:

model = stable_whisper.load_model('medium')  # tiny / base / small / medium / large
language = 'id'                               # language code, e.g. 'en', 'id', 'ja'

Model	Speed	Accuracy	VRAM
tiny	Fastest	Low	~1 GB
base	Fast	Medium	~1 GB
small	Moderate	Good	~2 GB
medium	Slow	Great	~5 GB
large	Slowest	Best	~10 GB

💡 100% Gratis — menggunakan Google Colab free tier (GPU T4) dan Google Drive. Tidak perlu bayar apapun.

🧰 Tech Stack

• OpenAI Whisper — speech-to-text model
• stable-ts — word-level timestamp stabilization
• FFmpeg — video processing & subtitle burning
• Google Colab + Google Drive — cloud GPU runtime & storage

📄 License

MIT