Increase packet lifetime to 3 seconds

backend/src/pacer.rs

@@ -540,26 +540,26 @@ mod tests {
         assert_eq!(0, media_sent_times_ms.len());
         assert_eq!(0, padding_sent_times_ms.len());
 
-        // Re-enable sending a little before 1 second out
-        pacer.configure(1000, 500, Some(padding_ssrc), 990);
+        // Re-enable sending a little before 3 seconds out
+        pacer.configure(1000, 500, Some(padding_ssrc), 2990);
         let (media_sent_times_ms, padding_sent_times_ms) =
-            pacer.send(&[(26, 990), (27, 990)], &media, &padding);
+            pacer.send(&[(26, 2990), (27, 2990)], &media, &padding);
 
         assert_eq!(0, padding_sent_times_ms.len());
         assert_eq!(0, media_sent_times_ms.len());
 
         let mut media_sent_times_ms = Vec::new();
         let mut padding_sent_times_ms = Vec::new();
         pacer.dequeue_until(
-            1021,
+            3021,
             &padding,
             &mut media_sent_times_ms,
             &mut padding_sent_times_ms,
         );
 
-        // pacer will discard packets over 1 second old, so packet 27 doesn't get sent at 1010
-        // padding will be timed from the last send (1000)
-        assert_eq!(vec![(25, 990), (26, 1000)], media_sent_times_ms);
-        assert_eq!(vec![1020], padding_sent_times_ms);
+        // pacer will discard packets over 3 seconds old, so packet 27 doesn't get sent at 3010
+        // padding will be timed from the last send (3000)
+        assert_eq!(vec![(25, 2990), (26, 3000)], media_sent_times_ms);
+        assert_eq!(vec![3020], padding_sent_times_ms);
     }
 }

backend/src/rtp.rs

@@ -67,8 +67,8 @@ const RTX_PAYLOAD_TYPE_OFFSET: PayloadType = 10;
 const RTX_SSRC_OFFSET: Ssrc = 1;
 
 // Discard outgoing packets after this time.
-// 1 second lifteime matches WebRTC's RTX history
-const PACKET_LIFETIME: Duration = Duration::from_secs(1);
+// 3 second lifetime matches WebRTC's RTX history
+const PACKET_LIFETIME: Duration = Duration::from_secs(3);
 
 pub type Key = Zeroizing<[u8; SRTP_KEY_LEN]>;
 pub type Salt = [u8; SRTP_SALT_LEN];