/// <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());
}
/// <summary>
/// Decodes audio data.
/// </summary>
/// <returns>Returns a decoded IAudioData buffer or null if no more buffer available.</returns>
public IAudioData Decode()
{
if (m_Disposed)
{
throw new ObjectDisposedException(LogSourceName);
}
BufferFrame();
// end of file ? -> yes exit
if (m_DecodeFifoBuffer.Length == 0)
{
return(null);
}
var outBuffer = new FifoBuffer();
bool l_Loop = true;
while (l_Loop)
{
M123.RESULT result;
result = M123.SafeNativeMethods.mpg123_decode(m_DecoderHandle, m_DecodeFifoBuffer, outBuffer, 8192);
switch (result)
{
case M123.RESULT.NEED_MORE:
if (outBuffer.Length > 0)
{
l_Loop = false;
break;
}
BufferFrame();
if (m_DecodeFifoBuffer.Length == 0)
{
return(null);
}
break;
case M123.RESULT.NEW_FORMAT: UpdateFormat(); break;
default: M123.CheckResult(result); throw new InvalidOperationException();
}
}
if (outBuffer.Length > 0)
{
var resultData = new AudioData(m_CurrentConfig.SamplingRate, m_CurrentConfig.Format, m_CurrentConfig.ChannelSetup, m_CurrentTimeStamp, 0, -1, outBuffer.ToArray());
m_CurrentTimeStamp += resultData.Duration;
return(resultData);
}
return(null);
}
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!");
}
}