Burn Subtitles

😫 The Pain Point

You have a video with an SRT subtitle file. You need the subtitles burned into the video so they show up everywhere, even on devices that don’t support external subtitles.

🚀 Agentic Solution

A Subtitle Burner that permanently embeds text into the video.

Key Features:

• Font Customization: Size, color, outline, position.
• Multiple Formats: SRT, ASS, VTT support.
• Batch Mode: Process multiple videos.

⚔️ Phase 1: Commander (Quick Fix)

For quick burning.

Prompt:

“I have a video movie.mp4 and subtitles movie.srt. Write a Python script using FFmpeg to:

1. Burn: Embed subtitles into video permanently.
2. Style: White text, black outline, bottom center.
3. Font Size: 24pt.
4. Output: Save as movie_subtitled.mp4.

Handle encoding issues (UTF-8 subtitles). Print progress.”

Result: Video with embedded subtitles.

🏗️ Phase 2: Architect (Permanent Tool)

For Content Creators.

Engineering Prompt:

**Role:** Python GUI Developer (PyQt6 Specialist)
**Task:** Create "Subtitle Burner" Desktop App

**Objective:** A desktop tool to permanently burn captions into videos with custom styling.

**Tech Stack:**
* Language: Python 3.10+
* GUI Library: PyQt6 (Cross-platform)
* Media Processing: FFmpeg (via subprocess)
* Packaging: PyInstaller

**Functional Requirements:**
1.  **UI Layout (PyQt6):**
    *   **Inputs:** Video File (.mp4) and Subtitle File (.srt/.ass) selection.
    *   **Styling:** Font Family dropdown, Size slider, Color picker (Text/Outline), Position (Bottom/Top).
    *   **Status:** Real-time log output window.

2.  **Core Logic:**
    *   Construct complex FFmpeg command based on UI inputs.
    *   `text={text}:fontsize={size}:fontcolor={color}`
    *   **Threading:** Execute FFmpeg process in `QProcess` or `QThread` to keep UI alive and show progress.

3.  **Deliverables:**
    *   `main.py`: Complete source code.
    *   `requirements.txt`: Dependencies.
    *   **Build Instructions:**
        *   Windows: `pyinstaller --onefile --noconsole main.py`
        *   macOS: `pyinstaller --windowed --noconsole main.py`

🧠 Prompt Decoding

• Hardcoded vs Softcoded: Hardcoded (burned) subtitles are part of the video pixels. Cannot be turned off but work everywhere.

🛠️ Instructions

1. Install FFmpeg.
2. Copy Prompt → Run.