Class: ActiveStorageValidations::Analyzer::VideoAnalyzer

Inherits:
ActiveStorageValidations::Analyzer show all
Includes:
ActiveStorageValidations::ASVFFProbable
Defined in:
lib/active_storage_validations/analyzer/video_analyzer.rb

Overview

ActiveStorageValidations Video Analyzer

Extracts the following from a video attachable:

  • Width (pixels)

  • Height (pixels)

  • Duration (seconds)

  • Angle (degrees)

  • Audio (true if file has an audio channel, false if not)

  • Video (true if file has an video channel, false if not)

Example:

ActiveStorageValidations::Analyzer::VideoAnalyzer.new(attachable).metadata
# => { width: 640, height: 480, duration: 5.0, angle: 0, 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.

Instance Attribute Summary

Attributes inherited from ActiveStorageValidations::Analyzer

#attachable

Instance Method Summary collapse

Methods inherited from ActiveStorageValidations::Analyzer

#content_type, #initialize

Methods included from ActiveStorageValidations::ASVLoggable

#logger

Constructor Details

This class inherits a constructor from ActiveStorageValidations::Analyzer

Instance Method Details

#metadata ⇒ Object 



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# File 'lib/active_storage_validations/analyzer/video_analyzer.rb', line 29

def metadata
  read_media do |media|
    {
      width: (Integer(width) if width),
      height: (Integer(height) if height),
      duration: duration,
      angle: angle,
      audio: audio?,
      video: video?
    }.compact
  end
end