From 2d955dae487200dba652d540110ed4ffb79bfb97 Mon Sep 17 00:00:00 2001
From: Omar Roth <omarroth@protonmail.com>
Date: Thu, 8 Aug 2019 22:09:34 -0500
Subject: [PATCH] Force redirect for videos without audio

---
 src/invidious.cr | 23 +++++++++++++++++++++--
 1 file changed, 21 insertions(+), 2 deletions(-)

diff --git a/src/invidious.cr b/src/invidious.cr
index c2de0dcf..46d38414 100644
--- a/src/invidious.cr
+++ b/src/invidious.cr
@@ -463,8 +463,16 @@ get "/watch" do |env|
 
   # Older videos may not have audio sources available.
   # We redirect here so they're not unplayable
-  if params.listen && audio_streams.empty?
-    next env.redirect "/watch?#{env.params.query}&listen=0"
+  if audio_streams.empty?
+    if params.quality == "dash"
+      env.params.query.delete_all("quality")
+      env.params.query["quality"] = "medium"
+      next env.redirect "/watch?#{env.params.query}"
+    elsif params.listen
+      env.params.query.delete_all("listen")
+      env.params.query["listen"] = "0"
+      next env.redirect "/watch?#{env.params.query}"
+    end
   end
 
   captions = video.captions
@@ -689,6 +697,17 @@ get "/embed/:id" do |env|
   video_streams = video.video_streams(adaptive_fmts)
   audio_streams = video.audio_streams(adaptive_fmts)
 
+  if audio_streams.empty?
+    if params.quality == "dash"
+      env.params.query.delete_all("quality")
+      next env.redirect "/embed/#{video_id}?#{env.params.query}"
+    elsif params.listen
+      env.params.query.delete_all("listen")
+      env.params.query["listen"] = "0"
+      next env.redirect "/embed/#{video_id}?#{env.params.query}"
+    end
+  end
+
   captions = video.captions
 
   preferred_captions = captions.select { |caption|