From 0331522128d47a4962bd3d69a84a3ca16aefdc45 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Sebastian=20Dr=C3=B6ge?= <sebastian@centricular.com>
Date: Fri, 26 May 2023 16:59:43 +0300
Subject: [PATCH] webrtcsink: Configure only 4 threads for x264enc

More threads can cause more slices to be created, and Chrome simply falls
apart if there are more than a few slices and fails decoding.

Part-of: <https://gitlab.freedesktop.org/gstreamer/gst-plugins-rs/-/merge_requests/1275>
---
 net/webrtc/src/webrtcsink/imp.rs | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/net/webrtc/src/webrtcsink/imp.rs b/net/webrtc/src/webrtcsink/imp.rs
index daa66558..2f94b1c6 100644
--- a/net/webrtc/src/webrtcsink/imp.rs
+++ b/net/webrtc/src/webrtcsink/imp.rs
@@ -513,7 +513,7 @@ fn configure_encoder(enc: &gst::Element, start_bitrate: u32) {
                 enc.set_property("bitrate", start_bitrate / 1000);
                 enc.set_property_from_str("tune", "zerolatency");
                 enc.set_property_from_str("speed-preset", "ultrafast");
-                enc.set_property("threads", 12u32);
+                enc.set_property("threads", 4u32);
                 enc.set_property("key-int-max", 2560u32);
                 enc.set_property("b-adapt", false);
                 enc.set_property("vbv-buf-capacity", 120u32);