mastodon/lib/paperclip/blurhash_transcoder.rb
Eugen Rochko fba96c808d
Add blurhash (#10630)
* Add blurhash

* Use fallback color for spoiler when blurhash missing

* Federate the blurhash and accept it as long as it's at most 5x5

* Display unknown media attachments as blurhash placeholders

* Improve style of embed actions and spoiler button

* Change blurhash resolution from 3x3 to 4x4

* Improve dependency definitions

* Fix code style issues
2019-04-27 03:24:09 +02:00

16 lines
480 B
Ruby

# frozen_string_literal: true
module Paperclip
class BlurhashTranscoder < Paperclip::Processor
def make
return @file unless options[:style] == :small
pixels = convert(':source RGB:-', source: File.expand_path(@file.path)).unpack('C*')
geometry = options.fetch(:file_geometry_parser).from_file(@file)
attachment.instance.blurhash = Blurhash.encode(geometry.width, geometry.height, pixels, options[:blurhash] || {})
@file
end
end
end