mitus/README.md

# Meeting Processor

Extract screen content from meeting recordings and merge with Whisper transcripts for better AI summarization.

## Overview

This tool enhances meeting transcripts by combining:
- **Audio transcription** (from Whisper)
- **Screen content analysis** (Vision models or OCR)

### Vision Analysis vs OCR

- **Vision Models** (recommended): Uses local LLaVA model via Ollama to understand context - great for dashboards, code, consoles
- **OCR**: Traditional text extraction - faster but less context-aware

The result is a rich, timestamped transcript that provides full context for AI summarization.

## Installation

### 1. System Dependencies

**Ollama** (required for vision analysis):
```bash
# Install from https://ollama.ai/download
# Then pull a vision model:
ollama pull llava:13b
# or for lighter model:
ollama pull llava:7b
```

**FFmpeg** (for scene detection):
```bash
# Ubuntu/Debian
sudo apt-get install ffmpeg

# macOS
brew install ffmpeg
```

**Tesseract OCR** (optional, if not using vision):
```bash
# Ubuntu/Debian
sudo apt-get install tesseract-ocr

# macOS
brew install tesseract

# Arch Linux
sudo pacman -S tesseract
```

### 2. Python Dependencies

```bash
pip install -r requirements.txt
```

### 3. Whisper (for audio transcription)

```bash
pip install openai-whisper
```

### 4. Optional: Install Alternative OCR Engines

If you prefer OCR over vision analysis:
```bash
# EasyOCR (better for rotated/handwritten text)
pip install easyocr

# PaddleOCR (better for code/terminal screens)
pip install paddleocr
```

## Quick Start

### Recommended: Vision Analysis (Best for Code/Dashboards)

```bash
python process_meeting.py samples/meeting.mkv --run-whisper --use-vision
```

This will:
1. Run Whisper transcription (audio → text)
2. Extract frames every 5 seconds
3. Use LLaVA vision model to analyze frames with context
4. Merge audio + screen content
5. Save everything to `output/` folder

### Re-run with Cached Results

Already ran it once? Re-run instantly using cached results:
```bash
# Uses cached transcript, frames, and analysis
python process_meeting.py samples/meeting.mkv --use-vision

# Force reprocessing
python process_meeting.py samples/meeting.mkv --run-whisper --use-vision --no-cache
```

### Traditional OCR (Faster, Less Context-Aware)

```bash
python process_meeting.py samples/meeting.mkv --run-whisper
```

## Usage Examples

### Vision Analysis with Context Hints
```bash
# For code-heavy meetings
python process_meeting.py samples/meeting.mkv --run-whisper --use-vision --vision-context code

# For dashboard/monitoring meetings (Grafana, GCP, etc.)
python process_meeting.py samples/meeting.mkv --run-whisper --use-vision --vision-context dashboard

# For console/terminal sessions
python process_meeting.py samples/meeting.mkv --run-whisper --use-vision --vision-context console
```

### Different Vision Models
```bash
# Lighter/faster model (7B parameters)
python process_meeting.py samples/meeting.mkv --run-whisper --use-vision --vision-model llava:7b

# Default model (13B parameters, better quality)
python process_meeting.py samples/meeting.mkv --run-whisper --use-vision --vision-model llava:13b

# Alternative models
python process_meeting.py samples/meeting.mkv --run-whisper --use-vision --vision-model bakllava
```

### Extract frames at different intervals
```bash
# Every 10 seconds
python process_meeting.py samples/meeting.mkv --run-whisper --use-vision --interval 10

# Every 3 seconds (more detailed)
python process_meeting.py samples/meeting.mkv --run-whisper --use-vision --interval 3
```

### Use scene detection (smarter, fewer frames)
```bash
python process_meeting.py samples/meeting.mkv --run-whisper --use-vision --scene-detection
```

### Traditional OCR (if you prefer)
```bash
# Tesseract (default)
python process_meeting.py samples/meeting.mkv --run-whisper

# EasyOCR
python process_meeting.py samples/meeting.mkv --run-whisper --ocr-engine easyocr

# PaddleOCR
python process_meeting.py samples/meeting.mkv --run-whisper --ocr-engine paddleocr
```

### Caching Examples
```bash
# First run - processes everything
python process_meeting.py samples/meeting.mkv --run-whisper --use-vision

# Second run - uses cached transcript and frames, only re-merges
python process_meeting.py samples/meeting.mkv

# Switch from OCR to vision using existing frames
python process_meeting.py samples/meeting.mkv --use-vision

# Force complete reprocessing
python process_meeting.py samples/meeting.mkv --run-whisper --use-vision --no-cache
```

### Custom output location
```bash
python process_meeting.py samples/meeting.mkv --run-whisper --use-vision --output-dir my_outputs/
```

### Enable verbose logging
```bash
# Show detailed debug information
python process_meeting.py samples/meeting.mkv --run-whisper --use-vision --verbose
```

## Output Files

All output files are saved to the `output/` directory by default:

- **`output/<video>_enhanced.txt`** - Enhanced transcript ready for AI summarization
- **`output/<video>.json`** - Whisper transcript (if `--run-whisper` was used)
- **`output/<video>_vision.json`** - Vision analysis results with timestamps (if `--use-vision`)
- **`output/<video>_ocr.json`** - OCR results with timestamps (if using OCR)
- **`frames/`** - Extracted video frames (JPG files)

### Caching Behavior

The tool automatically caches intermediate results to speed up re-runs:
- **Whisper transcript**: Cached as `output/<video>.json`
- **Extracted frames**: Cached in `frames/<video>_*.jpg`
- **Analysis results**: Cached as `output/<video>_vision.json` or `output/<video>_ocr.json`

Re-running with the same video will use cached results unless `--no-cache` is specified.

## Workflow for Meeting Analysis

### Complete Workflow (One Command!)

```bash
# Process everything in one step with vision analysis
python process_meeting.py samples/alo-intro1.mkv --run-whisper --use-vision --scene-detection

# Output will be in output/alo-intro1_enhanced.txt
```

### Typical Iterative Workflow

```bash
# First run - full processing
python process_meeting.py samples/meeting.mkv --run-whisper --use-vision

# Review results, then re-run with different context if needed
python process_meeting.py samples/meeting.mkv --use-vision --vision-context code

# Or switch to a different vision model
python process_meeting.py samples/meeting.mkv --use-vision --vision-model llava:7b

# All use cached frames and transcript!
```

### Traditional Workflow (Separate Steps)

```bash
# 1. Extract audio and transcribe with Whisper (optional, if not using --run-whisper)
whisper samples/alo-intro1.mkv --model base --output_format json --output_dir output

# 2. Process video to extract screen content with vision
python process_meeting.py samples/alo-intro1.mkv \
    --transcript output/alo-intro1.json \
    --use-vision \
    --scene-detection

# 3. Use the enhanced transcript with AI
# Copy the content from output/alo-intro1_enhanced.txt and paste into Claude or your LLM
```

### Example Prompt for Claude

```
Please summarize this meeting transcript. Pay special attention to:
1. Key decisions made
2. Action items
3. Technical details shown on screen
4. Any metrics or data presented

[Paste enhanced transcript here]
```

## Command Reference

```
usage: process_meeting.py [-h] [--transcript TRANSCRIPT] [--run-whisper]
                          [--whisper-model {tiny,base,small,medium,large}]
                          [--output OUTPUT] [--output-dir OUTPUT_DIR]
                          [--frames-dir FRAMES_DIR] [--interval INTERVAL]
                          [--scene-detection]
                          [--ocr-engine {tesseract,easyocr,paddleocr}]
                          [--no-deduplicate] [--extract-only]
                          [--format {detailed,compact}] [--verbose]
                          video

Options:
  video                 Path to video file
  --transcript, -t      Path to Whisper transcript (JSON or TXT)
  --run-whisper         Run Whisper transcription before processing
  --whisper-model       Whisper model: tiny, base, small, medium, large (default: base)
  --output, -o          Output file for enhanced transcript
  --output-dir          Directory for output files (default: output/)
  --frames-dir          Directory to save extracted frames (default: frames/)
  --interval            Extract frame every N seconds (default: 5)
  --scene-detection     Use scene detection instead of interval extraction
  --ocr-engine          OCR engine: tesseract, easyocr, paddleocr (default: tesseract)
  --no-deduplicate      Disable text deduplication
  --extract-only        Only extract frames and OCR, skip transcript merging
  --format              Output format: detailed or compact (default: detailed)
  --verbose, -v         Enable verbose logging (DEBUG level)
```

## Tips for Best Results

### Vision vs OCR: When to Use Each

**Use Vision Models (`--use-vision`) when:**
- ✅ Analyzing dashboards (Grafana, GCP Console, monitoring tools)
- ✅ Code walkthroughs or debugging sessions
- ✅ Complex layouts with mixed content
- ✅ Need contextual understanding, not just text extraction
- ✅ Working with charts, graphs, or visualizations
- ⚠️ Trade-off: Slower (requires GPU/CPU for local model)

**Use OCR when:**
- ✅ Simple text extraction from slides or documents
- ✅ Need maximum speed
- ✅ Limited computational resources
- ✅ Presentations with mostly text
- ⚠️ Trade-off: Less context-aware, may miss visual relationships

### Context Hints for Vision Analysis
- **`--vision-context meeting`**: General purpose (default)
- **`--vision-context code`**: Optimized for code screenshots, preserves formatting
- **`--vision-context dashboard`**: Extracts metrics, trends, panel names
- **`--vision-context console`**: Captures commands, output, error messages

### Scene Detection vs Interval
- **Scene detection**: Better for presentations with distinct slides. More efficient.
- **Interval extraction**: Better for continuous screen sharing (coding, browsing). More thorough.

### Vision Model Selection
- **`llava:7b`**: Faster, lower memory (~4GB RAM), good quality
- **`llava:13b`**: Better quality, slower, needs ~8GB RAM (default)
- **`bakllava`**: Alternative with different strengths

### Deduplication
- Enabled by default - removes similar consecutive frames
- Disable with `--no-deduplicate` if slides/screens change subtly

## Troubleshooting

### Vision Model Issues

**"ollama package not installed"**
```bash
pip install ollama
```

**"Ollama not found" or connection errors**
```bash
# Install Ollama first: https://ollama.ai/download
# Then pull a vision model:
ollama pull llava:13b
```

**Vision analysis is slow**
- Use lighter model: `--vision-model llava:7b`
- Reduce frame count: `--scene-detection` or `--interval 10`
- Check if Ollama is using GPU (much faster)

**Poor vision analysis results**
- Try different context hint: `--vision-context code` or `--vision-context dashboard`
- Use larger model: `--vision-model llava:13b`
- Ensure frames are clear (check video resolution)

### OCR Issues

**"pytesseract not installed"**
```bash
pip install pytesseract
sudo apt-get install tesseract-ocr  # Don't forget system package!
```

**Poor OCR quality**
- **Solution**: Switch to vision analysis with `--use-vision`
- Or try different OCR engine: `--ocr-engine easyocr`
- Check if video resolution is sufficient
- Use `--no-deduplicate` to keep more frames

### General Issues

**"No frames extracted"**
- Check video file is valid: `ffmpeg -i video.mkv`
- Try lower interval: `--interval 3`
- Check disk space in frames directory

**Scene detection not working**
- Fallback to interval extraction automatically
- Ensure FFmpeg is installed
- Try manual interval: `--interval 5`

**Cache not being used**
- Ensure you're using the same video filename
- Check that output directory contains cached files
- Use `--verbose` to see what's being cached/loaded

## Project Structure

```
meetus/
├── meetus/                  # Main package
│   ├── __init__.py
│   ├── frame_extractor.py   # Video frame extraction
│   ├── ocr_processor.py     # OCR processing
│   └── transcript_merger.py # Transcript merging
├── process_meeting.py       # Main CLI script
├── requirements.txt         # Python dependencies
└── README.md               # This file
```

## License

For personal use.