1 files changed, 25 insertions, 3 deletions
diff --git a/app/models/media_attachment.rb b/app/models/media_attachment.rb
index 1bfe02fd6..0f787ebc4 100644
--- a/app/models/media_attachment.rb
+++ b/app/models/media_attachment.rb
@@ -22,14 +22,16 @@
 class MediaAttachment < ApplicationRecord
   self.inheritance_column = nil
 
-  enum type: [:image, :gifv, :video, :unknown]
+  enum type: [:image, :gifv, :video, :audio, :unknown]
 
   IMAGE_FILE_EXTENSIONS = ['.jpg', '.jpeg', '.png', '.gif'].freeze
   VIDEO_FILE_EXTENSIONS = ['.webm', '.mp4', '.m4v', '.mov'].freeze
+  AUDIO_FILE_EXTENSIONS = ['.mp3', '.m4a', '.wav', '.ogg'].freeze
 
   IMAGE_MIME_TYPES             = ['image/jpeg', 'image/png', 'image/gif'].freeze
   VIDEO_MIME_TYPES             = ['video/webm', 'video/mp4', 'video/quicktime'].freeze
   VIDEO_CONVERTIBLE_MIME_TYPES = ['video/webm', 'video/quicktime'].freeze
+  AUDIO_MIME_TYPES             = ['audio/mpeg', 'audio/mp4', 'audio/vnd.wav', 'audio/wav', 'audio/x-wav', 'audio/x-wave', 'audio/ogg',].freeze
 
   IMAGE_STYLES = {
     original: {
@@ -43,6 +45,22 @@ class MediaAttachment < ApplicationRecord
     },
   }.freeze
 
+  AUDIO_STYLES = {
+    original: {
+      format: 'mp4',
+      convert_options: {
+        output: {
+          filter_complex: '"[0:a]compand,showwaves=s=640x360:mode=line,format=yuv420p[v]"',
+          map: '"[v]" -map 0:a', 
+          threads: 2,
+          vcodec: 'libx264',
+          acodec: 'aac',
+          movflags: '+faststart',
+        },
+      },
+    },
+  }.freeze
+
   VIDEO_STYLES = {
     small: {
       convert_options: {
@@ -83,7 +101,7 @@ class MediaAttachment < ApplicationRecord
                     processors: ->(f) { file_processors f },
                     convert_options: { all: '-quality 90 -strip' }
 
-  validates_attachment_content_type :file, content_type: IMAGE_MIME_TYPES + VIDEO_MIME_TYPES
+  validates_attachment_content_type :file, content_type: IMAGE_MIME_TYPES + VIDEO_MIME_TYPES + AUDIO_MIME_TYPES
   validates_attachment_size :file, less_than: IMAGE_LIMIT, unless: :video?
   validates_attachment_size :file, less_than: VIDEO_LIMIT, if: :video?
   remotable_attachment :file, VIDEO_LIMIT
@@ -147,6 +165,8 @@ class MediaAttachment < ApplicationRecord
         }
       elsif IMAGE_MIME_TYPES.include? f.instance.file_content_type
         IMAGE_STYLES
+      elsif AUDIO_MIME_TYPES.include? f.instance.file_content_type
+        AUDIO_STYLES
       elsif VIDEO_CONVERTIBLE_MIME_TYPES.include?(f.instance.file_content_type)
         {
           small: VIDEO_STYLES[:small],
@@ -162,6 +182,8 @@ class MediaAttachment < ApplicationRecord
         [:gif_transcoder]
       elsif VIDEO_MIME_TYPES.include? f.file_content_type
         [:video_transcoder]
+      elsif AUDIO_MIME_TYPES.include? f.file_content_type
+        [:audio_transcoder]
       else
         [:lazy_thumbnail]
       end
@@ -186,7 +208,7 @@ class MediaAttachment < ApplicationRecord
   end
 
   def set_type_and_extension
-    self.type = VIDEO_MIME_TYPES.include?(file_content_type) ? :video : :image
+    self.type = VIDEO_MIME_TYPES.include?(file_content_type) ? :video : AUDIO_MIME_TYPES.include?(file_content_type) ? :audio : :image
   end
 
   def set_meta