From 51842314799c9a4cf2a759e76823fb2815caca9d Mon Sep 17 00:00:00 2001
From: litetex <40789489+litetex@users.noreply.github.com>
Date: Thu, 10 Jul 2025 23:23:34 +0200
Subject: [PATCH 1/2] Do a quick check if the n parameter is even present
 before exec regex

---
 .../services/youtube/YoutubeThrottlingParameterUtils.java    | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/extractor/src/main/java/org/schabi/newpipe/extractor/services/youtube/YoutubeThrottlingParameterUtils.java b/extractor/src/main/java/org/schabi/newpipe/extractor/services/youtube/YoutubeThrottlingParameterUtils.java
index f7a9bbbc5..86634f841 100644
--- a/extractor/src/main/java/org/schabi/newpipe/extractor/services/youtube/YoutubeThrottlingParameterUtils.java
+++ b/extractor/src/main/java/org/schabi/newpipe/extractor/services/youtube/YoutubeThrottlingParameterUtils.java
@@ -196,6 +196,11 @@ final class YoutubeThrottlingParameterUtils {
      */
     @Nullable
     static String getThrottlingParameterFromStreamingUrl(@Nonnull final String streamingUrl) {
+        // Do a quick check if the n parameter is even present, if not abort
+        // This improves performance by 60-900x
+        if (!streamingUrl.contains("&n=") && !streamingUrl.contains("?n=")) {
+            return null;
+        }
         try {
             return Parser.matchGroup1(THROTTLING_PARAM_PATTERN, streamingUrl);
         } catch (final Parser.RegexException e) {

From 0dfaeb20fa6842a2d345174e2bc07c11de439c4d Mon Sep 17 00:00:00 2001
From: litetex <40789489+litetex@users.noreply.github.com>
Date: Fri, 11 Jul 2025 20:12:50 +0200
Subject: [PATCH 2/2] Added doc for related code

---
 .../services/youtube/YoutubeThrottlingParameterUtils.java       | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/extractor/src/main/java/org/schabi/newpipe/extractor/services/youtube/YoutubeThrottlingParameterUtils.java b/extractor/src/main/java/org/schabi/newpipe/extractor/services/youtube/YoutubeThrottlingParameterUtils.java
index 86634f841..ea9f107e9 100644
--- a/extractor/src/main/java/org/schabi/newpipe/extractor/services/youtube/YoutubeThrottlingParameterUtils.java
+++ b/extractor/src/main/java/org/schabi/newpipe/extractor/services/youtube/YoutubeThrottlingParameterUtils.java
@@ -18,6 +18,8 @@ import java.util.regex.Pattern;
  */
 final class YoutubeThrottlingParameterUtils {
 
+    // NOTE: When changing this you should also change the quick exit/shortcut
+    // in getThrottlingParameterFromStreamingUrl
     private static final Pattern THROTTLING_PARAM_PATTERN = Pattern.compile("[&?]n=([^&]+)");
 
     private static final String SINGLE_CHAR_VARIABLE_REGEX = "[a-zA-Z0-9$_]";