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πŸ¦€ ClawHub

Video-Watch

by @kartinw

Analyze video content by extracting frames at regular intervals. Use when you need to understand what's in a video file, review video content, analyze scenes, or describe video without being able to play it directly. Supports MP4, MOV, AVI, MKV, and other common video formats.

Versionv1.0.0
Downloads3,767
Stars⭐ 6
TERMINAL
clawhub install video-watcher

πŸ“– About This Skill


name: video-analyzer description: Analyze video content by extracting frames at regular intervals. Use when you need to understand what's in a video file, review video content, analyze scenes, or describe video without being able to play it directly. Supports MP4, MOV, AVI, MKV, and other common video formats.

Video Analyzer

Analyze video files by extracting frames at 1-second intervals using ffmpeg, then examining the frames to understand the video content.

Prerequisites

Requires ffmpeg installed on the system. Install if missing:

# Ubuntu/Debian
sudo apt-get install -y ffmpeg

macOS

brew install ffmpeg

Usage

Extract frames from video

scripts/extract_frames.sh  [output_dir] [fps]

Arguments:

  • video_path (required): Path to the video file
  • output_dir (optional): Directory for extracted frames. Default: creates frames_ in current directory
  • fps (optional): Frames per second to extract. Default: 1 (one frame per second)
  • Example:

    scripts/extract_frames.sh /path/to/video.mp4
    scripts/extract_frames.sh /path/to/video.mp4 ./my_frames
    scripts/extract_frames.sh /path/to/video.mp4 ./my_frames 2  # 2 frames per second
    

    Output:

  • Creates numbered frame images: frame_001.jpg, frame_002.jpg, etc.
  • Prints video metadata (duration, resolution, frame count)
  • Workflow

    1. Run extract_frames.sh on the video file 2. Read key frames using the read tool to view images 3. For comprehensive analysis, sample frames at regular intervals (e.g., every 5th frame) 4. Describe what you see in each frame to build understanding of the video

    Tips

  • For short videos (<1 min): Review all frames
  • For medium videos (1-5 min): Sample every 3-5 frames
  • For long videos (>5 min): Sample every 10+ frames, focus on scene changes
  • Look for: scene transitions, text/titles, UI elements, actions, characters
  • πŸ’‘ Examples

    Extract frames from video

    scripts/extract_frames.sh  [output_dir] [fps]
    

    Arguments:

  • video_path (required): Path to the video file
  • output_dir (optional): Directory for extracted frames. Default: creates frames_ in current directory
  • fps (optional): Frames per second to extract. Default: 1 (one frame per second)
  • Example:

    scripts/extract_frames.sh /path/to/video.mp4
    scripts/extract_frames.sh /path/to/video.mp4 ./my_frames
    scripts/extract_frames.sh /path/to/video.mp4 ./my_frames 2  # 2 frames per second
    

    Output:

  • Creates numbered frame images: frame_001.jpg, frame_002.jpg, etc.
  • Prints video metadata (duration, resolution, frame count)
  • βš™οΈ Configuration

    Requires ffmpeg installed on the system. Install if missing:

    # Ubuntu/Debian
    sudo apt-get install -y ffmpeg

    macOS

    brew install ffmpeg

    πŸ“‹ Tips & Best Practices

  • For short videos (<1 min): Review all frames
  • For medium videos (1-5 min): Sample every 3-5 frames
  • For long videos (>5 min): Sample every 10+ frames, focus on scene changes
  • Look for: scene transitions, text/titles, UI elements, actions, characters