Add support for playout-delay extension

node/src/supportedRtpCapabilities.ts

@@ -335,6 +335,13 @@ const supportedRtpCapabilities: RtpCapabilities = {
 			preferredEncrypt: false,
 			direction: 'sendrecv',
 		},
+		{
+			kind: 'audio',
+			uri: 'http://www.webrtc.org/experiments/rtp-hdrext/playout-delay',
+			preferredId: 14,
+			preferredEncrypt: false,
+			direction: 'sendrecv',
+		},
 	],
 };
 

node/src/test/test-PipeTransport.ts

@@ -271,6 +271,12 @@ test('router.pipeToRouter() succeeds with audio', async () => {
 			encrypt: false,
 			parameters: {},
 		},
+		{
+			uri: 'http://www.webrtc.org/experiments/rtp-hdrext/playout-delay',
+			id: 14,
+			encrypt: false,
+			parameters: {},
+		},
 	]);
 	expect(pipeConsumer.type).toBe('pipe');
 	expect(pipeConsumer.paused).toBe(false);
@@ -313,6 +319,12 @@ test('router.pipeToRouter() succeeds with audio', async () => {
 			encrypt: false,
 			parameters: {},
 		},
+		{
+			uri: 'http://www.webrtc.org/experiments/rtp-hdrext/playout-delay',
+			id: 14,
+			encrypt: false,
+			parameters: {},
+		},
 	]);
 	expect(pipeProducer.paused).toBe(false);
 }, 2000);

rust/src/supported_rtp_capabilities.rs

@@ -393,6 +393,13 @@ pub fn get_supported_rtp_capabilities() -> RtpCapabilities {
                 preferred_encrypt: false,
                 direction: RtpHeaderExtensionDirection::SendRecv,
             },
+            RtpHeaderExtension {
+                kind: MediaKind::Audio,
+                uri: RtpHeaderExtensionUri::PlayoutDelay,
+                preferred_id: 14,
+                preferred_encrypt: false,
+                direction: RtpHeaderExtensionDirection::SendRecv,
+            },
         ],
     }
 }

rust/tests/integration/pipe_transport.rs

@@ -350,6 +350,11 @@ fn pipe_to_router_succeeds_with_audio() {
                     uri: RtpHeaderExtensionUri::AbsCaptureTime,
                     id: 13,
                     encrypt: false,
+                },
+                RtpHeaderExtensionParameters {
+                    uri: RtpHeaderExtensionUri::PlayoutDelay,
+                    id: 14,
+                    encrypt: false,
                 }
             ],
         );
@@ -395,7 +400,12 @@ fn pipe_to_router_succeeds_with_audio() {
                     uri: RtpHeaderExtensionUri::AbsCaptureTime,
                     id: 13,
                     encrypt: false,
-                }
+                },
+                RtpHeaderExtensionParameters {
+                    uri: RtpHeaderExtensionUri::PlayoutDelay,
+                    id: 14,
+                    encrypt: false,
+                },
             ],
         );
         assert!(!pipe_producer.paused());