Esempio n. 1
0
        /// <summary>
        /// Create a Consumer.
        /// </summary>
        /// <param name="consumerOptions"></param>
        /// <returns></returns>
        public override async Task <Consumer> ConsumeAsync(ConsumerOptions consumerOptions)
        {
            _logger.LogDebug("ConsumeAsync()");


            if (consumerOptions.ProducerId.IsNullOrWhiteSpace())
            {
                throw new Exception("missing producerId");
            }

            var producer = GetProducerById(consumerOptions.ProducerId);

            if (producer == null)
            {
                throw new Exception($"Producer with id {consumerOptions.ProducerId} not found");
            }

            // This may throw.
            var rtpParameters = ORTC.GetPipeConsumerRtpParameters(producer.ConsumableRtpParameters, Rtx);

            var @internal = new ConsumerInternalData
                            (
                Internal.RouterId,
                Internal.TransportId,
                consumerOptions.ProducerId,
                Guid.NewGuid().ToString()
                            );

            var reqData = new
            {
                producer.Kind,
                RtpParameters          = rtpParameters,
                Type                   = ConsumerType.Pipe,
                ConsumableRtpEncodings = producer.ConsumableRtpParameters.Encodings,
            };

            var status = await Channel.RequestAsync(MethodId.TRANSPORT_CONSUME, @internal, reqData);

            var responseData = JsonConvert.DeserializeObject <TransportConsumeResponseData>(status !);

            var data = new
            {
                producer.Kind,
                RtpParameters = rtpParameters,
                Type          = ConsumerType.Pipe,
            };

            // 在 Node.js 实现中, 创建 Consumer 对象时没提供 score 和 preferredLayers 参数,且 score = { score: 10, producerScore: 10 }。
            var consumer = new Consumer(_loggerFactory,
                                        @internal,
                                        data.Kind,
                                        data.RtpParameters,
                                        data.Type,
                                        Channel,
                                        PayloadChannel,
                                        AppData,
                                        responseData.Paused,
                                        responseData.ProducerPaused,
                                        responseData.Score,
                                        responseData.PreferredLayers);

            consumer.On("@close", async _ =>
            {
                await ConsumersLock.WaitAsync();
                try
                {
                    Consumers.Remove(consumer.ConsumerId);
                }
                finally
                {
                    ConsumersLock.Set();
                }
            });
            consumer.On("@producerclose", async _ =>
            {
                await ConsumersLock.WaitAsync();
                try
                {
                    Consumers.Remove(consumer.ConsumerId);
                }
                finally
                {
                    ConsumersLock.Set();
                }
            });

            await ConsumersLock.WaitAsync();

            try
            {
                Consumers[consumer.ConsumerId] = consumer;
            }
            finally
            {
                ConsumersLock.Set();
            }

            // Emit observer event.
            Observer.Emit("newconsumer", consumer);

            return(consumer);
        }
Esempio n. 2
0
        /// <summary>
        /// Create a Consumer.
        /// </summary>
        /// <param name="consumerOptions"></param>
        /// <returns></returns>
        public virtual async Task <Consumer> ConsumeAsync(ConsumerOptions consumerOptions)
        {
            _logger.LogDebug("ConsumeAsync()");

            if (consumerOptions.ProducerId.IsNullOrWhiteSpace())
            {
                throw new ArgumentException("missing producerId");
            }

            if (consumerOptions.RtpCapabilities == null)
            {
                throw new ArgumentException(nameof(consumerOptions.RtpCapabilities));
            }

            if (!consumerOptions.Paused.HasValue)
            {
                consumerOptions.Paused = false;
            }

            // This may throw.
            ORTC.ValidateRtpCapabilities(consumerOptions.RtpCapabilities);

            var producer = GetProducerById(consumerOptions.ProducerId);

            if (producer == null)
            {
                throw new NullReferenceException($"Producer with id {consumerOptions.ProducerId} not found");
            }

            // This may throw.
            var rtpParameters = ORTC.GetConsumerRtpParameters(producer.ConsumableRtpParameters, consumerOptions.RtpCapabilities);

            // Set MID.
            rtpParameters.Mid = $"{_nextMidForConsumers++}";

            // We use up to 8 bytes for MID (string).
            if (_nextMidForConsumers == 100000000)
            {
                _logger.LogDebug($"ConsumeAsync() | reaching max MID value {_nextMidForConsumers}");

                _nextMidForConsumers = 0;
            }

            var @internal = new ConsumerInternalData
                            (
                Internal.RouterId,
                Internal.TransportId,
                consumerOptions.ProducerId,
                Guid.NewGuid().ToString()
                            );

            var reqData = new
            {
                producer.Kind,
                RtpParameters = rtpParameters,
                producer.Type,
                ConsumableRtpEncodings = producer.ConsumableRtpParameters.Encodings,
                consumerOptions.Paused,
                consumerOptions.PreferredLayers
            };

            var status = await Channel.RequestAsync(MethodId.TRANSPORT_CONSUME, @internal, reqData);

            var responseData = JsonConvert.DeserializeObject <TransportConsumeResponseData>(status);

            var data = new
            {
                producer.Kind,
                RtpParameters = rtpParameters,
                Type          = (ConsumerType)producer.Type, // 注意:类型转换
            };

            var consumer = new Consumer(_loggerFactory,
                                        @internal,
                                        data.Kind,
                                        data.RtpParameters,
                                        data.Type,
                                        Channel,
                                        AppData,
                                        responseData.Paused,
                                        responseData.ProducerPaused,
                                        responseData.Score,
                                        responseData.PreferredLayers);

            Consumers[consumer.Internal.ConsumerId] = consumer;

            consumer.On("@close", _ => Consumers.Remove(consumer.Internal.ConsumerId));
            consumer.On("@producerclose", _ => Consumers.Remove(consumer.Internal.ConsumerId));

            // Emit observer event.
            Observer.Emit("newconsumer", consumer);

            return(consumer);
        }
Esempio n. 3
0
 /// <summary>
 /// Create a Consumer.
 /// </summary>
 /// <param name="consumerOptions"></param>
 /// <returns></returns>
 public override Task <Consumer> ConsumeAsync(ConsumerOptions consumerOptions)
 {
     _logger.LogDebug("ConsumeAsync()");
     throw new NotImplementedException("ConsumeAsync() not implemented in DirectTransport");
 }