1 files changed, 21 insertions, 0 deletions
diff --git a/lib/paperclip/gif_transcoder.rb b/lib/paperclip/gif_transcoder.rb
new file mode 100644
index 000000000..33d2c4a01
--- /dev/null
+++ b/lib/paperclip/gif_transcoder.rb
@@ -0,0 +1,21 @@
+# frozen_string_literal: true
+
+module Paperclip
+  # This transcoder is only to be used for the MediaAttachment model
+  # to convert animated gifs to webm
+  class GifTranscoder < Paperclip::Processor
+    def make
+      num_frames = identify('-format %n :file', file: file.path).to_i
+
+      return file unless options[:style] == :original && num_frames > 1
+
+      final_file = Paperclip::Transcoder.make(file, options, attachment)
+
+      attachment.instance.file_file_name    = 'media.webm'
+      attachment.instance.file_content_type = 'video/webm'
+      attachment.instance.type              = MediaAttachment.types[:gifv]
+
+      final_file
+    end
+  end
+end