Change media upload limits and remove client-side resizing (#23726)

app/models/concerns/attachmentable.rb

@@ -5,7 +5,7 @@ require 'mime/types/columnar'
 module Attachmentable
   extend ActiveSupport::Concern
 
-  MAX_MATRIX_LIMIT = 16_777_216 # 4096x4096px or approx. 16MB
+  MAX_MATRIX_LIMIT = 33_177_600 # 7680x4320px or approx. 847MB in RAM
   GIF_MATRIX_LIMIT = 921_600    # 1280x720px
 
   # For some file extensions, there exist different content

app/models/media_attachment.rb

@@ -39,11 +39,11 @@ class MediaAttachment < ApplicationRecord
 
   MAX_DESCRIPTION_LENGTH = 1_500
 
-  IMAGE_LIMIT = 10.megabytes
-  VIDEO_LIMIT = 40.megabytes
+  IMAGE_LIMIT = 16.megabytes
+  VIDEO_LIMIT = 99.megabytes
 
-  MAX_VIDEO_MATRIX_LIMIT = 2_304_000 # 1920x1200px
-  MAX_VIDEO_FRAME_RATE   = 60
+  MAX_VIDEO_MATRIX_LIMIT = 8_294_400 # 3840x2160px
+  MAX_VIDEO_FRAME_RATE   = 120
 
   IMAGE_FILE_EXTENSIONS = %w(.jpg .jpeg .png .gif .webp .heic .heif .avif).freeze
   VIDEO_FILE_EXTENSIONS = %w(.webm .mp4 .m4v .mov).freeze
@@ -69,7 +69,7 @@ class MediaAttachment < ApplicationRecord
 
   IMAGE_STYLES = {
     original: {
-      pixels: 2_073_600, # 1920x1080px
+      pixels: 8_294_400, # 3840x2160px
       file_geometry_parser: FastGeometryParser,
     }.freeze,
 

app/models/preview_card.rb

@@ -36,7 +36,7 @@ class PreviewCard < ApplicationRecord
   include Attachmentable
 
   IMAGE_MIME_TYPES = ['image/jpeg', 'image/png', 'image/gif', 'image/webp'].freeze
-  LIMIT = 1.megabytes
+  LIMIT = 2.megabytes
 
   BLURHASH_OPTIONS = {
     x_comp: 4,
@@ -121,7 +121,7 @@ class PreviewCard < ApplicationRecord
     def image_styles(file)
       styles = {
         original: {
-          geometry: '400x400>',
+          pixels: 230_400, # 640x360px
           file_geometry_parser: FastGeometryParser,
           convert_options: '-coalesce',
           blurhash: BLURHASH_OPTIONS,