A Python tool for processing video presentations, extracting slides, transcribing audio, and generating comprehensive transcripts with slide descriptions.

lecture2ppt/
├── sample/           # Sample video files
├── output/           # Generated output files (PDFs, transcripts, etc.)
├── temp/            # Temporary files (images, etc.)
└── src/             # Source code
    ├── main.py      # Main processing script
    ├── merge_transcripts.py  # Transcript merging script
    └── create_ppt.py         # PowerPoint generation script

• Python 3.8+
• OpenAI API key
• Required Python packages (install using pip install -r requirements.txt):
  • moviepy
  • openai
  • python-dotenv
  • opencv-python
  • numpy
  • Pillow
  • PyMuPDF
  • python-pptx

1. Clone the repository:

git clone https://github.com/yourusername/lecture2ppt.git
cd lecture2ppt

2. Install dependencies:

pip install -r requirements.txt

3. Create a .env file with your OpenAI API key:

OPENAI_API_KEY=your_api_key_here

The main script processes a video file, extracts slides, and generates transcripts:

python src/main.py sample/test_video.mp4

Optional flags:

• --skip-audio-extraction: Skip audio extraction
• --skip-audio-transcription: Skip audio transcription
• --skip-text-extraction: Skip text extraction from slides

Combine slide descriptions with audio transcript:

python src/merge_transcripts.py --slide-transcripts output/slide_transcripts.txt --transcript output/transcript.txt --output output/merged_transcript.txt

Generate a PowerPoint presentation with slides and speaker notes:

python src/create_ppt.py --slides-pdf output/slides.pdf --transcript output/transcript.txt --output output/presentation.pptx

All output files are saved in the output/ directory:

• slides.pdf: Extracted slides from the video
• transcript.txt: Audio transcription
• slide_transcripts.txt: Slide descriptions
• merged_transcript.txt: Combined slide descriptions and audio transcript
• presentation.pptx: PowerPoint presentation with slides and speaker notes

To process Tim Urban's TED Talk about procrastination:

1. Download the video:

curl -L -o sample/test_video.mp4 "https://download.ted.com/talks/TimUrban_2016-480p.mp4"

2. Process the video:

python src/main.py sample/test_video.mp4

3. Merge transcripts:

python src/merge_transcripts.py --slide-transcripts output/slide_transcripts.txt --transcript output/transcript.txt --output output/merged_transcript.txt

4. Create PowerPoint:

python src/create_ppt.py --slides-pdf output/slides.pdf --transcript output/transcript.txt --output output/presentation.pptx

The script will:

• Extract slides from the video
• Transcribe the audio
• Generate slide descriptions
• Create a merged transcript
• Generate a PowerPoint presentation with slides and corresponding speaker notes

Apache License 2.0