private void ReadDataFromSocket(ChannelLocation channelLocation, IptvInfo info, int retries = 3)
{
try
{
using (var s = _socketFactory())
{
var start = DateTime.Now;
var previous = new byte[0];
s.Open(channelLocation.Host, channelLocation.Port);
var count = 0;
while (NotAllDataFound(info) && count < MaxCycles)
{
var data = s.Receive();
UpdateInfo(info, previous, data);
previous = data;
count++;
}
var end = DateTime.Now;
_log.Debug($"Found IPTV Info after {(int) (end - start).TotalMilliseconds}ms");
}
}
catch (SocketException)
{
if (retries == 0)
{
throw;
}
_log.Info($"Failed to read data from {channelLocation.Url}, retry ({retries}x allowed)");
ReadDataFromSocket(channelLocation, info, retries - 1);
}
}
public IptvInfo ReadInfo(ChannelLocation info, string channel)
{
if (string.IsNullOrWhiteSpace(info.Host))
{
_log.Warn("No valid host given");
return(null);
}
var data = ReadData(info, channel);
return(data);
}
public void FindNpo2()
{
var location = new ChannelLocation
{
Host = "224.0.251.125",
Port = 8250,
Protocol = "rtp"
};
var info = _iptvChannel.ReadInfo(location, "Npo2");
info.Number.Should().Be(662);
info.Name.Should().Be("NPO 2 HD glas");
}
public void FindRtl5()
{
var location = new ChannelLocation
{
Host = "224.0.251.135",
Port = 8270,
Protocol = "rtp"
};
var info = _iptvChannel.ReadInfo(location, "Rtl5");
info.Number.Should().Be(665);
info.Name.Should().Be("RTL5 HD glas");
}
private ChannelLocation ExtractLocation(IList <string> messageBlock)
{
/*
* m=video 8248 RTP/AVPF 96
* i=Original Source Stream
* c=IN IP4 224.0.251.124/255
* b=AS:12750
*/
var portAndProtocol = messageBlock.First(m => m.StartsWith("m=video")).Substring(8).Split(' ');
var address = messageBlock.First(m => m.StartsWith("c=IN IP4")).Substring(9);
var bitrate = messageBlock.First(m => m.StartsWith("b=AS:")).Substring(5);
//Generate URL
var port = portAndProtocol[0];
//Extract RTP from RTP/AVPF
if (portAndProtocol[1].Contains("/"))
{
portAndProtocol[1] = portAndProtocol[1].Substring(0, portAndProtocol[1].IndexOf('/'));
}
var protocol = portAndProtocol[1];
//Extract /255 from 224.0.251.124/255
if (address.Contains("/"))
{
address = address.Substring(0, address.IndexOf('/'));
}
var location = new ChannelLocation
{
Protocol = protocol.ToLower(),
Host = address,
Port = int.Parse(port),
Bitrate = int.Parse(bitrate)
};
return(location);
}
private IptvInfo ReadData(ChannelLocation channelLocation, string channel)
{
var info = new IptvInfo {
Url = channelLocation.Url
};
try
{
_log.Debug($"Try to read data from {channelLocation.Url} for {channel}");
ReadDataFromSocket(channelLocation, info);
_log.Info($"Found IPTV Info for {channel} at {channelLocation.Url}: {info.Provider} - {info.Name} (key: {info.Number})");
return(info);
}
catch (Exception ex)
{
_log.Warn($"Failed to read data from {channelLocation.Url} for {channel}");
_log.Debug($"Failed to read data from {channelLocation.Url}: {ex.Message}", ex);
return(null);
}
}
