Exemplo n.º 1
0
        Stream GetBufferingStream(string streamUrl)
        {
            var memoryStream = new DualStream();

            Task.Run(() => {
                int byteCounter = 0;
                try {
                    var webClient     = new WebClient();
                    var networkStream = webClient.OpenRead(streamUrl);
                    if (networkStream == null)
                    {
                        return;
                    }
                    byte[] buffer = new byte[0x1000];
                    while (true)
                    {
                        int read = networkStream.Read(buffer, 0, buffer.Length);
                        if (read <= 0)
                        {
                            break;
                        }
                        byteCounter      += read;
                        totalSourceBytes += read;
                        memoryStream.Write(buffer, 0, read);
                    }
                } catch (Exception ex) {
                    Console.WriteLine("Exception while reading network stream: " + ex);
                }
                NetworkDone = true; Console.WriteLine("net: done. ({0} read)", byteCounter);
            });
            return(memoryStream);
        }
Exemplo n.º 2
0
        public void Start()
        {
            Task.Run(async() => {
                // Wait for some data to arrive
                while (true)
                {
                    if (streamRequest.NetworkDone)
                    {
                        break;
                    }
                    if (bufferingStream.Length > 1024 * 3)
                    {
                        break;
                    }
                    await Task.Delay(100);
                }

                Stream input, pcmOutput;
                var ffmpegProcess = GetTranscoderStreams(out input, out pcmOutput);

                PCMOutput = new DualStream();

                // Keep pumping network stuff into the transcoder
                transcoderTask = Task.Run(() => TranscoderFunc(bufferingStream, input, tokenSource.Token), tokenSource.Token);

                // Keep pumping transcoder output into the PCMOutput stream
                outputTask = Task.Run(() => OutputFunc(pcmOutput, PCMOutput, tokenSource.Token), tokenSource.Token);

                // Wait until network stuff is all done
                while (!streamRequest.NetworkDone)
                {
                    await Task.Delay(200);
                }

                // Then wait until we sent everything to the transcoder
                while (BytesSentToTranscoder < streamRequest.TotalSourceBytes)
                {
                    await Task.Delay(200);
                }

                // Then wait some more until it did everything and kill it
                await Task.Delay(5000);

                try {
                    tokenSource.Cancel();
                    bufferingStream.Close();

                    Console.WriteLine("Killing transcoder...");
                    ffmpegProcess.Kill();
                } catch {
                }
            });
        }
Exemplo n.º 3
0
        static async Task OutputFunc(Stream sourceStream, DualStream targetBuffer, CancellationToken cancellationToken)
        {
            try {
                byte[] buffer = new byte[1024];
                while (!cancellationToken.IsCancellationRequested)
                {
                    // When there is new stuff available on the network we want to get it instantly
                    int read = await sourceStream.ReadAsync(buffer, 0, buffer.Length, cancellationToken);

                    if (read > 0)
                    {
                        targetBuffer.Write(buffer, 0, read);
                    }
                }
            } catch (Exception ex) {
                Console.WriteLine(ex.ToString());
            }

            Console.WriteLine("OutputFunc stopped");
        }
Exemplo n.º 4
0
 Stream GetBufferingStream(string streamUrl) {
     var memoryStream = new DualStream();
     Task.Run(() => {
         int byteCounter = 0;
         try {
             var webClient = new WebClient();
             var networkStream = webClient.OpenRead(streamUrl);
             if (networkStream == null) return;
             byte[] buffer = new byte[0x1000];
             while (true) {
                 int read = networkStream.Read(buffer, 0, buffer.Length);
                 if (read <= 0) break;
                 byteCounter += read;
                 totalSourceBytes += read;
                 memoryStream.Write(buffer, 0, read);
             }
         } catch (Exception ex) {
             Console.WriteLine("Exception while reading network stream: " + ex);
         }
         NetworkDone = true; Console.WriteLine("net: done. ({0} read)", byteCounter);
     });
     return memoryStream;
 }