From ae2e8233407aa65ebbebee0e5811d7cb860edea0 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Sebastian=20Dr=C3=B6ge?= <sebastian@centricular.com>
Date: Fri, 11 Jul 2025 19:57:50 +0300
Subject: [PATCH] rtprecv: Drop packets for which we have no clock-rate instead
 of panicking

Panicking if some spurious packet with an unknown payload type is
received is not good behaviour.

Part-of: <https://gitlab.freedesktop.org/gstreamer/gst-plugins-rs/-/merge_requests/2364>
---
 net/rtp/src/rtpbin2/rtprecv.rs | 14 ++++++++++----
 1 file changed, 10 insertions(+), 4 deletions(-)

diff --git a/net/rtp/src/rtpbin2/rtprecv.rs b/net/rtp/src/rtpbin2/rtprecv.rs
index 5ef4f8f45..e0d4c3c52 100644
--- a/net/rtp/src/rtpbin2/rtprecv.rs
+++ b/net/rtp/src/rtpbin2/rtprecv.rs
@@ -712,10 +712,16 @@ impl RtpRecv {
             let mut sync_context = self.sync_context.lock().unwrap();
             let sync_context = sync_context.as_mut().unwrap();
             if !sync_context.has_clock_rate(rtp.ssrc()) {
-                let clock_rate = session_inner
-                    .session
-                    .clock_rate_from_pt(rtp.payload_type())
-                    .unwrap();
+                let Some(clock_rate) = session_inner.session.clock_rate_from_pt(rtp.payload_type())
+                else {
+                    gst::warning!(
+                        CAT,
+                        imp = self,
+                        "Have no clock-rate for payload type {}",
+                        rtp.payload_type()
+                    );
+                    return Ok(RecvRtpBuffer::Drop);
+                };
                 sync_context.set_clock_rate(rtp.ssrc(), clock_rate);
             }