/// <summary>
/// Deserialise/parse an RTSP response.
/// </summary>
/// <param name="responseBytes">The raw response bytes.</param>
/// <param name="responseByteCount">The number of valid bytes in the response.</param>
/// <returns>a response object</returns>
public static RtspResponse Deserialise(byte[] responseBytes, int responseByteCount)
{
var response = new RtspResponse();
var responseString = Encoding.UTF8.GetString(responseBytes, 0, responseByteCount);
Logger.Info(responseString);
var m = RegexStatusLine.Match(responseString);
if (m.Success)
{
response._majorVersion = int.Parse(m.Groups[1].Captures[0].Value);
response._minorVersion = int.Parse(m.Groups[2].Captures[0].Value);
response._statusCode = (RtspStatusCode)int.Parse(m.Groups[3].Captures[0].Value);
response._reasonPhrase = m.Groups[4].Captures[0].Value;
responseString = m.Groups[5].Captures[0].Value;
}
var sections = responseString.Split(new[] { "\r\n\r\n" }, StringSplitOptions.None);
response._body = sections[1];
var headers = sections[0].Split(new[] { "\r\n" }, StringSplitOptions.None);
response._headers = new Dictionary <string, string>();
foreach (var headerInfo in headers.Select(header => header.Split(':')))
{
response._headers.Add(headerInfo[0], headerInfo[1].Trim());
}
return(response);
}
private void ReceiveResponse(out RtspResponse response)
{
response = null;
var responseBytesCount = 0;
byte[] responseBytes = new byte[1024];
try
{
responseBytesCount = _rtspSocket.Receive(responseBytes, responseBytes.Length, SocketFlags.None);
response = RtspResponse.Deserialise(responseBytes, responseBytesCount);
string contentLengthString;
int contentLength = 0;
if (response.Headers.TryGetValue("Content-Length", out contentLengthString))
{
contentLength = int.Parse(contentLengthString);
if ((string.IsNullOrEmpty(response.Body) && contentLength > 0) || response.Body.Length < contentLength)
{
if (response.Body == null)
{
response.Body = string.Empty;
}
while (responseBytesCount > 0 && response.Body.Length < contentLength)
{
responseBytesCount = _rtspSocket.Receive(responseBytes, responseBytes.Length, SocketFlags.None);
response.Body += System.Text.Encoding.UTF8.GetString(responseBytes, 0, responseBytesCount);
}
}
}
}
catch (SocketException)
{
}
}
