From d9e8f4054c9a73183d16928c78a16351400fe13d Mon Sep 17 00:00:00 2001
From: Guillaume Desmottes <guillaume.desmottes@onestream.live>
Date: Mon, 30 Sep 2024 14:22:10 +0200
Subject: [PATCH] webrtc: allow PAR change in webrtcsink input caps

We are already allowing resolution changes which can lead to change in
pixel-aspect-ratio.

Part-of: <https://gitlab.freedesktop.org/gstreamer/gst-plugins-rs/-/merge_requests/1830>
---
 net/webrtc/src/webrtcsink/imp.rs | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/net/webrtc/src/webrtcsink/imp.rs b/net/webrtc/src/webrtcsink/imp.rs
index 83f44617..bf423b17 100644
--- a/net/webrtc/src/webrtcsink/imp.rs
+++ b/net/webrtc/src/webrtcsink/imp.rs
@@ -4205,7 +4205,8 @@ impl BaseWebRTCSink {
         // a renegotiation.
         let caps_type = current.name();
         if caps_type.starts_with("video/") {
-            const VIDEO_ALLOWED_CHANGES: &[&str] = &["width", "height", "framerate"];
+            const VIDEO_ALLOWED_CHANGES: &[&str] =
+                &["width", "height", "framerate", "pixel-aspect-ratio"];
 
             current.remove_fields(VIDEO_ALLOWED_CHANGES.iter().copied());
             new.remove_fields(VIDEO_ALLOWED_CHANGES.iter().copied());