Feat: Add resolution limit

src/invidious/config.cr

@@ -164,6 +164,9 @@ class Config
   # Playlist length limit
   property playlist_length_limit : Int32 = 500
 
+  # The max resolution the Instance can offer
+  property max_dash_resolution : Int32?
+
   # Materialious redirects
   property materialious_domain : String?
 

src/invidious/routes/api/manifest.cr

@@ -55,6 +55,14 @@ module Invidious::Routes::API::Manifest
     audio_streams = video.audio_streams.sort_by { |stream| {stream["bitrate"].as_i} }.reverse!
     video_streams = video.video_streams.sort_by { |stream| {stream["width"].as_i, stream["fps"].as_i} }.reverse!
 
+	# Removes all the resolutions with a height higher than CONFIG.max_dash_resolution
+    if CONFIG.max_dash_resolution
+      video_streams.reject! do |z|
+        (z["height"].as_i > CONFIG.max_dash_resolution.not_nil!) if z["height"]?
+      end
+    end
+
+
     manifest = XML.build(indent: "  ", encoding: "UTF-8") do |xml|
       xml.element("MPD", "xmlns": "urn:mpeg:dash:schema:mpd:2011",
         "profiles": "urn:mpeg:dash:profile:full:2011", minBufferTime: "PT1.5S", type: "static",

src/invidious/routes/watch.cr

@@ -120,6 +120,13 @@ module Invidious::Routes::Watch
     fmt_stream = video.fmt_stream
     adaptive_fmts = video.adaptive_fmts
 
+	# Removes all the resolutions with a height higher than CONFIG.max_dash_resolution
+    if CONFIG.max_dash_resolution
+      adaptive_fmts.reject! do |z|
+        (z["height"].as_i > CONFIG.max_dash_resolution.not_nil!) if z["height"]?
+      end
+    end
+
     if params.local
       fmt_stream.each { |fmt| fmt["url"] = JSON::Any.new(URI.parse(fmt["url"].as_s).request_target) }
       adaptive_fmts.each { |fmt| fmt["url"] = JSON::Any.new(URI.parse(fmt["url"].as_s).request_target) }
@@ -128,6 +135,13 @@ module Invidious::Routes::Watch
     video_streams = video.video_streams
     audio_streams = video.audio_streams
 
+	# Removes all the resolutions with a height higher than CONFIG.max_dash_resolution
+    if CONFIG.max_dash_resolution
+      video_streams.reject! do |z|
+        (z["height"].as_i > CONFIG.max_dash_resolution.not_nil!) if z["height"]?
+      end
+    end
+
     # Older videos may not have audio sources available.
     # We redirect here so they're not unplayable
     if audio_streams.empty? && !video.live_now