/// <summary> /// Create a Producer. /// </summary> public override Task <Producer> ProduceAsync(ProducerOptions producerOptions) { _logger.LogDebug($"ProduceAsync() | DiectTransport:{TransportId}"); throw new NotImplementedException("ProduceAsync() is not implemented in DirectTransport"); }
/// <summary> /// Create a Producer. /// </summary> public virtual async Task <Producer> ProduceAsync(ProducerOptions producerOptions) { _logger.LogDebug($"ProduceAsync() | Transport:{TransportId}"); if (!producerOptions.Id.IsNullOrWhiteSpace() && Producers.ContainsKey(producerOptions.Id !)) { throw new Exception($"a Producer with same id \"{producerOptions.Id}\" already exists"); } // This may throw. ORTC.ValidateRtpParameters(producerOptions.RtpParameters); // If missing or empty encodings, add one. // 在 mediasoup-worker 中,要求 Encodings 至少要有一个元素。 if (producerOptions.RtpParameters.Encodings.IsNullOrEmpty()) { producerOptions.RtpParameters.Encodings = new List <RtpEncodingParameters> { // 对 RtpEncodingParameters 序列化时,Rid、CodecPayloadType 和 Rtx 为 null 会忽略,因为客户端库对其有校验。 new RtpEncodingParameters() }; } // Don't do this in PipeTransports since there we must keep CNAME value in // each Producer. // TODO: (alby) 反模式 if (GetType() != typeof(PipeTransport)) { // If CNAME is given and we don't have yet a CNAME for Producers in this // Transport, take it. if (_cnameForProducers.IsNullOrWhiteSpace() && producerOptions.RtpParameters.Rtcp != null && !producerOptions.RtpParameters.Rtcp.CNAME.IsNullOrWhiteSpace()) { _cnameForProducers = producerOptions.RtpParameters.Rtcp.CNAME; } // Otherwise if we don't have yet a CNAME for Producers and the RTP parameters // do not include CNAME, create a random one. else if (_cnameForProducers.IsNullOrWhiteSpace()) { _cnameForProducers = Guid.NewGuid().ToString().Substring(0, 8); } // Override Producer's CNAME. // 对 RtcpParameters 序列化时,CNAME 和 ReducedSize 为 null 会忽略,因为客户端库对其有校验。 producerOptions.RtpParameters.Rtcp = producerOptions.RtpParameters.Rtcp ?? new RtcpParameters(); producerOptions.RtpParameters.Rtcp.CNAME = _cnameForProducers; } var routerRtpCapabilities = GetRouterRtpCapabilities(); // This may throw. var rtpMapping = ORTC.GetProducerRtpParametersMapping(producerOptions.RtpParameters, routerRtpCapabilities); // This may throw. var consumableRtpParameters = ORTC.GetConsumableRtpParameters(producerOptions.Kind, producerOptions.RtpParameters, routerRtpCapabilities, rtpMapping); var @internal = new ProducerInternalData ( Internal.RouterId, Internal.TransportId, producerOptions.Id.NullOrWhiteSpaceReplace(Guid.NewGuid().ToString()) ); var reqData = new { producerOptions.Kind, producerOptions.RtpParameters, RtpMapping = rtpMapping, producerOptions.KeyFrameRequestDelay, producerOptions.Paused, }; var resData = await Channel.RequestAsync(MethodId.TRANSPORT_PRODUCE, @internal, reqData); var responseData = JsonSerializer.Deserialize <TransportProduceResponseData>(resData !, ObjectExtensions.DefaultJsonSerializerOptions) !; var data = new { producerOptions.Kind, producerOptions.RtpParameters, responseData.Type, ConsumableRtpParameters = consumableRtpParameters }; var producer = new Producer(_loggerFactory, @internal, data.Kind, data.RtpParameters, data.Type, data.ConsumableRtpParameters, Channel, PayloadChannel, producerOptions.AppData, producerOptions.Paused !.Value); producer.On("@close", async(_, _) => { await ProducersLock.WaitAsync(); try { Producers.Remove(producer.ProducerId); Emit("@producerclose", producer); } catch (Exception ex) { _logger.LogError(ex, "@close"); } finally { ProducersLock.Set(); } }); await ProducersLock.WaitAsync(); try { Producers[producer.ProducerId] = producer; } catch (Exception ex) { _logger.LogError(ex, "ProduceAsync()"); } finally { ProducersLock.Set(); } Emit("@newproducer", producer); // Emit observer event. Observer.Emit("newproducer", producer); return(producer); }