class ActiveStorage::VideoAnalyzer < ActiveStorage::Analyzer

Active Storage Video Analyzer

Extracts the following from a video blob:

Width (pixels)
Height (pixels)
Duration (seconds)
Angle (degrees)
Display aspect ratio
Audio (true if file has an audio channel, false if not)
Video (true if file has an video channel, false if not)

Example:

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

When a video’s angle is 90, -90, 270 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.

Methods

A

accept?

M

metadata

Public class methods

`accept?(blob)`

Source code GitHub

# File activestorage/lib/active_storage/analyzer/video_analyzer.rb, line 25
def self.accept?(blob)
  blob.video?
end

Public instance methods

`metadata()`

Source code GitHub

# File activestorage/lib/active_storage/analyzer/video_analyzer.rb, line 29
def metadata
  { width: width, height: height, duration: duration, angle: angle, display_aspect_ratio: display_aspect_ratio, audio: audio?, video: video? }.compact
end

Definition files

activestorage/lib/active_storage/analyzer/video_analyzer.rb