async Task GetHttpStreamAsync()
{
do
{
try
{
using var streamHandler = await BaseStreamHandler.GetStreamHandler(Url, httpClient);
await streamHandler.StartAsync();
{
//get the position of metadata
int metaInt = streamHandler.GetIceCastMetaInterval();
using MemoryStream metadataData = new MemoryStream();
byte[] buffer = null;
int metadataLength = 0;
int streamPosition = 0;
int bufferPosition = 0;
int readBytes = 0;
OnStreamStart?.Invoke(this, new StreamStartEventArgs(streamHandler.GetCodec()));
while (Running)
{
if (bufferPosition >= readBytes)
{
(readBytes, buffer) = await streamHandler.ReadAsync();
bufferPosition = 0;
}
if (readBytes <= 0)
{
Radio.Log("Stream over", this);
break;
}
if (metadataLength == 0)
{
if (metaInt == 0 || streamPosition + readBytes - bufferPosition <= metaInt)
{
streamPosition += readBytes - bufferPosition;
ProcessStreamData(buffer, ref bufferPosition, readBytes - bufferPosition);
continue;
}
ProcessStreamData(buffer, ref bufferPosition, metaInt - streamPosition);
metadataLength = Convert.ToInt32(buffer[bufferPosition++]) * 16;
//check if there's any metadata, otherwise skip to next block
if (metadataLength == 0)
{
streamPosition = Math.Min(readBytes - bufferPosition, metaInt);
ProcessStreamData(buffer, ref bufferPosition, streamPosition);
continue;
}
}
//get the metadata and reset the position
while (bufferPosition < readBytes)
{
metadataData.WriteByte(buffer[bufferPosition++]);
metadataLength--;
if (metadataLength == 0)
{
var metadataBuffer = metadataData.ToArray();
Metadata = Encoding.UTF8.GetString(metadataBuffer);
metadataData.SetLength(0);
streamPosition = Math.Min(readBytes - bufferPosition, metaInt);
ProcessStreamData(buffer, ref bufferPosition, streamPosition);
break;
}
}
}
}
}
catch (IOException ex)
{
Radio.Log(string.Format("Handled IOException, reconnecting. Details:\n{0}\n{1}", ex.Message, ex.StackTrace), this);
OnStreamOver?.Invoke(this, new StreamOverEventArgs());
}
catch (SocketException ex)
{
Radio.Log(string.Format("Handled SocketException, reconnecting. Details:\n{0}\n{1}", ex.Message, ex.StackTrace), this);
OnStreamOver?.Invoke(this, new StreamOverEventArgs());
}
catch (WebException ex)
{
Radio.Log(string.Format("Handled WebException, reconnecting. Details:\n{0}\n{1}", ex.Message, ex.StackTrace), this);
OnStreamOver?.Invoke(this, new StreamOverEventArgs());
}
catch (Exception ex)
{
Radio.Log(string.Format("Handled Exception, reconnecting. Details:\n{0}\n{1}", ex.Message, ex.StackTrace), this);
OnStreamOver?.Invoke(this, new StreamOverEventArgs());
}
} while (Running);
}
public WifiRootHandler(BaseStreamHandler defaultHandler) :
base("GET", "/")
{
m_DefaultHandler = defaultHandler;
}