Allow playout delay even when sync stream isn't used. (#2133)

The two options should function independently. Users could still improve
video jitter by using up to 100ms of playout delay.

pkg/rtc/participant.go

@@ -1114,7 +1114,7 @@ func (p *ParticipantImpl) setupTransportManager() error {
 		TCPFallbackRTTThreshold:  p.params.TCPFallbackRTTThreshold,
 		AllowUDPUnstableFallback: p.params.AllowUDPUnstableFallback,
 		TURNSEnabled:             p.params.TURNSEnabled,
-		AllowPlayoutDelay:        p.params.PlayoutDelay.GetEnabled() && p.SupportsSyncStreamID(),
+		AllowPlayoutDelay:        p.params.PlayoutDelay.GetEnabled(),
 		Logger:                   p.params.Logger.WithComponent(sutils.ComponentTransport),
 	})
 	if err != nil {
@@ -2291,7 +2291,7 @@ func (p *ParticipantImpl) SendDataPacket(dp *livekit.DataPacket, data []byte) er
 
 	err := p.TransportManager.SendDataPacket(dp, data)
 	if err != nil {
-		if (err == sctp.ErrStreamClosed || err == io.ErrClosedPipe) && p.params.ReconnectOnDataChannelError {
+		if (errors.Is(err, sctp.ErrStreamClosed) || errors.Is(err, io.ErrClosedPipe)) && p.params.ReconnectOnDataChannelError {
 			p.params.Logger.Infow("issuing full reconnect on data channel error")
 			p.IssueFullReconnect(types.ParticipantCloseReasonDataChannelError)
 		}

pkg/rtc/participant_sdp.go

@@ -252,7 +252,7 @@ func (p *ParticipantImpl) configurePublisherAnswer(answer webrtc.SessionDescript
 
 			opusPT, err := parsed.GetPayloadTypeForCodec(sdp.Codec{Name: "opus"})
 			if err != nil {
-				p.pubLogger.Infow("failed to get opus payload type", "error", err, "trakcID", ti.Sid)
+				p.pubLogger.Infow("failed to get opus payload type", "error", err, "trackID", ti.Sid)
 				continue
 			}