From f189cd7c480d1c48a004042295d3fa1b4d0bddc3 Mon Sep 17 00:00:00 2001
From: Omar Roth <omarroth@hotmail.com>
Date: Sun, 15 Jul 2018 22:10:29 -0500
Subject: [PATCH] Speed up /videoplayback streaming

---
 src/invidious.cr | 17 ++++++++---------
 1 file changed, 8 insertions(+), 9 deletions(-)

diff --git a/src/invidious.cr b/src/invidious.cr
index dacefad4..01759a62 100644
--- a/src/invidious.cr
+++ b/src/invidious.cr
@@ -1051,17 +1051,16 @@ get "/videoplayback*" do |env|
 
       env.response.headers["Access-Control-Allow-Origin"] = "*"
 
-      chunk = Bytes[8]
-
-      loop do
-        count = response.body_io.read(chunk)
-
-        begin
-          env.response.write(chunk)
+      begin
+        chunk_size = 4096
+        size = 1
+        while size > 0
+          size = IO.copy(response.body_io, env.response.output, chunk_size)
           env.response.flush
-        rescue ex
-          break
+          Fiber.yield
         end
+      rescue ex
+        break
       end
     end
   end