private void ButtonBase2_OnClick(object sender, RoutedEventArgs e)
{
var msStream = WebApiProxy.GetFile(@"http://win.web.nf01.sycdn.kuwo.cn/resource/n1/10/47/2323037830.mp3");
var readFullyStream = new Framework.Recorder.ReadFullyStream(msStream);
try
{
//var inputStream = new AudioFileReader(msStream);
//var aggregator = new SampleAggregator(inputStream);
//var waveOut = CreateWaveOut();
////waveOut.PlaybackStopped += OnPlaybackStopped;
////var volumeProvider = new VolumeWaveProvider16(bufferedWaveProvider);
////volumeProvider.Volume = volumeSlider1.Volume;
//waveOut.Init(aggregator);
//waveOut.Play();
}
catch (EndOfStreamException)
{
// reached the end of the MP3 file / stream
}
catch (WebException)
{
// probably we have aborted download from the GUI thread
}
catch (Exception)
{
// probably we have aborted download from the GUI thread
}
if (IsBufferNearlyFull)
{
}
}
private void StreamMp3(object state)
{
fullyDownloaded = false;
var url = (string)state;
webRequest = (HttpWebRequest)WebRequest.Create(url);
HttpWebResponse resp;
try
{
resp = (HttpWebResponse)webRequest.GetResponse();
}
catch (WebException e)
{
if (e.Status != WebExceptionStatus.RequestCanceled)
{
Log4NetHelper.Error(e.Message);
}
return;
}
var buffer = new byte[16384 * 4]; // needs to be big enough to hold a decompressed frame
IMp3FrameDecompressor decompressor = null;
try
{
using (var responseStream = resp.GetResponseStream())
{
var readFullyStream = new ReadFullyStream(responseStream);
do
{
if (IsBufferNearlyFull)
{
Log4NetHelper.Error("Buffer getting full, taking a break");
Thread.Sleep(500);
}
else
{
Mp3Frame frame;
try
{
frame = Mp3Frame.LoadFromStream(readFullyStream);
}
catch (EndOfStreamException)
{
fullyDownloaded = true;
// reached the end of the MP3 file / stream
break;
}
catch (WebException)
{
// probably we have aborted download from the GUI thread
break;
}
if (frame == null)
{
break;
}
if (decompressor == null)
{
// don't think these details matter too much - just help ACM select the right codec
// however, the buffered provider doesn't know what sample rate it is working at
// until we have a frame
decompressor = CreateFrameDecompressor(frame);
bufferedWaveProvider = new BufferedWaveProvider(decompressor.OutputFormat);
bufferedWaveProvider.BufferDuration =
TimeSpan.FromSeconds(20); // allow us to get well ahead of ourselves
//this.bufferedWaveProvider.BufferedDuration = 250;
}
int decompressed = decompressor.DecompressFrame(frame, buffer, 0);
//Debug.WriteLine(String.Format("Decompressed a frame {0}", decompressed));
bufferedWaveProvider.AddSamples(buffer, 0, decompressed);
}
} while (playbackState != StreamingPlaybackState.Stopped);
Console.WriteLine("Exiting");
// was doing this in a finally block, but for some reason
// we are hanging on response stream .Dispose so never get there
decompressor?.Dispose();
}
}
finally
{
if (decompressor != null)
{
decompressor.Dispose();
}
}
}