ActiveStorage::Analyzer::VideoAnalyzer

Extracts the following from a video blob:

• Width (pixels)

• Height (pixels)

• Duration (seconds)

• Angle (degrees)

• Display aspect ratio

Example:

ActiveStorage::Analyzer::VideoAnalyzer.new(blob).metadata
# => { width: 640.0, height: 480.0, duration: 5.0, angle: 0, display_aspect_ratio: [4, 3] }

When a video’s angle is 90 or 270 degrees, its width and height are automatically swapped for convenience.

This analyzer requires the FFmpeg system library, which is not provided by Rails.