Convert GIFs to MP4s

app/commands/media/upload.rb

@@ -4,6 +4,7 @@ require "securerandom"
 require "dry/monads"
 require "filemagic"
 require "image_processing/vips"
+require "open3"
 
 module Adamantium
   module Commands
@@ -12,17 +13,50 @@ module Adamantium
         include Deps["settings"]
         include Dry::Monads[:result]
 
-        VALID_UPLOAD_TYPES = %i[jpeg jpg png gif]
+        IMAGE_TYPES = %i[jpeg jpg png].freeze
+        VIDEO_TYPES = %i[gif].freeze
+        VALID_UPLOAD_TYPES = IMAGE_TYPES + VIDEO_TYPES
 
         def call(file:)
           mime = FileMagic.new
-          type = mime.file(file[:tempfile].path, true)
+          type = mime.file(file[:tempfile].path, true).to_sym
 
-          return Failure(:invalid_file_type) unless VALID_UPLOAD_TYPES.include? type.to_sym
+          return Failure(:invalid_file_type) unless VALID_UPLOAD_TYPES.include? type
 
-          pathname = Time.now.strftime("%m-%Y")
-          uuid = SecureRandom.uuid
+          save_image(file: file) if IMAGE_TYPES.include? type
+          save_video(file: file) if VIDEO_TYPES.include? type
+        end
 
+        private
+
+        def pathname
+          Time.now.strftime("%m-%Y")
+        end
+
+        def uuid
+          SecureRandom.uuid
+        end
+
+        def save_video(file:)
+          fullsize_filename = "#{uuid}.mp4"
+
+          dirname = File.join("public", "media", pathname)
+
+          unless File.directory?(dirname)
+            FileUtils.mkdir_p(dirname)
+          end
+
+          begin
+            Open3.popen3("ffmpeg -i #{file[:tempfile].path} -movflags faststart -pix_fmt yuv420p -vf 'scale=trunc(iw/2)*2:trunc(ih/2)*2' #{File.join(dirname, fullsize_filename)}")
+          rescue Errno::ENOENT, NoMethodError => e
+            return Failure(e.message)
+          end
+
+          upload_path = File.join(settings.micropub_site_url, "/media/", "/#{pathname}/", fullsize_filename).to_s
+          Success(upload_path)
+        end
+
+        def save_image(file:)
           fullsize_filename = "#{uuid}#{File.extname(file[:filename])}"
           thumbnail_filename = "#{uuid}-small#{File.extname(file[:filename])}"