PAStreamCallbackResult Callback(IntPtr input, IntPtr output, uint frameCount, ref PAStreamCallbackTimeInfo timeInfo, PAStreamCallbackFlags statusFlags, IntPtr userData)
{
int byteCount = (int)frameCount * Configuration.BytesPerTick;
lock (m_SyncRoot)
{
// fill output buffer
while (m_StreamData.Length < byteCount)
{
if (m_Buffers.Count > 0)
{
IAudioData audioData = m_Buffers.Dequeue();
if (Volume != 1)
{
audioData = audioData.ChangeVolume(Volume);
}
m_StreamData.Enqueue(audioData.Data);
continue;
}
int silenceBytes = byteCount - m_StreamData.Length;
m_BufferUnderflowCount++;
m_BytesQueued += silenceBytes;
m_StreamData.Enqueue(new byte[silenceBytes]);
}
m_StreamData.Dequeue(byteCount, output);
m_BytesPassed += m_InProgressBytes;
m_InProgressBytes = byteCount;
return(m_Exit ? PAStreamCallbackResult.Complete : PAStreamCallbackResult.Continue);
}
}
PAStreamCallbackResult Callback(IntPtr input, IntPtr output, uint frameCount, ref PAStreamCallbackTimeInfo timeInfo, PAStreamCallbackFlags statusFlags, IntPtr userData)
{
var byteCount = (int)frameCount * Configuration.BytesPerTick;
lock (syncRoot)
{
// fill output buffer
while (streamData.Length < byteCount)
{
if (buffers.Count > 0)
{
var audioData = buffers.Dequeue();
if (Volume != 1)
{
audioData = audioData.ChangeVolume(Volume);
}
streamData.Enqueue(audioData.Data, true);
continue;
}
var silenceBytes = byteCount - streamData.Length;
bufferUnderflowCount++;
bytesQueued += silenceBytes;
streamData.Enqueue(new byte[silenceBytes], true);
}
streamData.Dequeue(byteCount, output);
bytesPassed += inProgressBytes;
inProgressBytes = byteCount;
return(exit ? PAStreamCallbackResult.Complete : PAStreamCallbackResult.Continue);
}
}
/// <summary>
/// buffers a frame into mpg123.
/// </summary>
void BufferFrame()
{
for (int i = 0; i < 1;)
{
AudioFrame frame = m_Source.GetNextFrame();
if (frame == null)
{
break;
}
Decoding?.Invoke(this, new AudioFrameEventArgs(frame));
if (frame.IsAudio)
{
m_DecodeFifoBuffer.Enqueue(frame.Data);
i++;
}
}
}
/// <summary>Retrieves the tag as byte array.</summary>
/// <returns></returns>
public byte[] ToArray()
{
var buffer = new FifoBuffer();
ID3v2HeaderFlags flags = ID3v2HeaderFlags.None;
/* we do not like extended headers so we won't write them
* if (m_ExtendedHeader != null)
* {
* buffer.Enqueue(m_ExtendedHeader.Data);
* flags |= ID3v2HeaderFlags.ExtendedHeader;
* }
*/
foreach (ID3v2Frame frame in frames)
{
buffer.Enqueue(frame.RawData);
}
int bodySize = buffer.Length;
// no one likes footers so we won't write them
var header = new ID3v2Header(Header.Version, Header.Revision, flags, bodySize);
buffer.Prepend(header.Data);
return(buffer.ToArray());
}
internal void Add(byte[] buffer)
{
m_Buffer.Enqueue(buffer);
}
internal void LoadPost(WebServerClient client)
{
if (!Headers.TryGetValue("content-type", out string contentType))
{
return;
}
string contentTypeShort = contentType.BeforeFirst(';').Trim().ToLower();
switch (contentTypeShort)
{
case "application/x-www-form-urlencoded": break;
case "application/octet-stream": break;
case "multipart/form-data": break;
default: throw new WebServerException(WebError.UnknownContent, 0, "Unknown content type!");
}
int size = 0;
{
if (Headers.TryGetValue("content-length", out string sizeStr))
{
int.TryParse(sizeStr, out size);
}
}
// if (size > 20 * 1024 * 1024) throw new CaveWebException(CaveWebError.MaximumSizeExceeded, "Maximum transfer size exceeded!");
if (Headers.ContainsKey("expect"))
{
if (Headers["expect"].Contains("100-continue"))
{
string @continue = $"{Protocol} {(int)HttpStatusCode.Continue} {HttpStatusCode.Continue}";
if (Server.VerboseMode)
{
Trace.TraceInformation($"Request {ID} {@continue}");
}
client.Writer.WriteLine(@continue);
client.Writer.WriteLine();
}
}
byte[] data = null;
if (Headers.TryGetValue("transfer-encoding", out string transferEncoding))
{
switch (transferEncoding.ToLower().Trim())
{
case "chunked":
var buf = new FifoBuffer();
while (true)
{
string line = client.Reader.ReadLine();
int chunkSize = Convert.ToInt32(line, 16);
if (chunkSize == 0)
{
break;
}
byte[] chunkData = client.Reader.ReadBytes(chunkSize);
buf.Enqueue(chunkData);
client.Reader.ReadLine();
}
data = buf.ToArray();
break;
default:
throw new WebServerException(WebError.UnknownContent, 0, string.Format("Unknown transfer encoding {0}", transferEncoding));
}
}
switch (contentTypeShort)
{
case "application/x-www-form-urlencoded":
if (data != null)
{
DecodeUrl(Encoding.ASCII.GetString(data).Replace('+', ' '), true);
}
else
{
DecodeUrl(Encoding.ASCII.GetString(client.Reader.ReadBytes(size)).Replace('+', ' '), true);
}
break;
case "application/octet-stream":
if (data != null)
{
SetPostData(data);
}
else
{
SetPostData(client.Reader.ReadBytes(size));
}
break;
case "multipart/form-data":
if (data != null)
{
DecodeMultiPartFormData(contentType, new DataReader(new MemoryStream(data), newLineMode: NewLineMode.CRLF));
}
else
{
DecodeMultiPartFormData(contentType, client.Reader);
}
break;
default: throw new WebServerException(WebError.UnknownContent, 0, "Unknown content type!");
}
}
