fixed: Philips DVBC.XML files with frequency values in Hz instead of MHz caused an overflow exception

source/ChanSort.Api/Controller/SerializerBase.cs

@@ -1,4 +1,5 @@
 using System;
+using System.Globalization;
 using System.IO;
 using System.IO.Compression;
 using System.Text;
@@ -165,5 +166,32 @@ namespace ChanSort.Api
       }
     }
     #endregion
+
+    #region ParseInt()
+    protected int ParseInt(string input)
+    {
+      if (string.IsNullOrWhiteSpace(input))
+        return 0;
+      if (input.Length > 2 && input[0] == '0' && char.ToLower(input[1]) == 'x')
+        return int.Parse(input.Substring(2), NumberStyles.HexNumber);
+      if (int.TryParse(input, out var value))
+        return value;
+      return 0;
+    }
+    #endregion
+
+    #region ParseInt()
+    protected long ParseLong(string input)
+    {
+      if (string.IsNullOrWhiteSpace(input))
+        return 0;
+      if (input.Length > 2 && input[0] == '0' && char.ToLower(input[1]) == 'x')
+        return long.Parse(input.Substring(2), NumberStyles.HexNumber);
+      if (long.TryParse(input, out var value))
+        return value;
+      return 0;
+    }
+    #endregion
+
   }
 }

source/ChanSort.Api/Model/LookupData.cs

@@ -224,6 +224,12 @@ namespace ChanSort.Api
 
     public string GetDvbcChannelName(decimal freqInMhz)
     {
+      // in case the parameter is in Hz or kHz, correct it to MHz to avoid overflow errors. 2 GHz is the largest plausible frequency
+      if (freqInMhz > 2000)
+        freqInMhz /= 1000;
+      if (freqInMhz > 2000)
+        freqInMhz /= 1000;
+
       return dvbcChannels.TryGet((int)(freqInMhz * 1000)) ?? dvbcChannels.TryGet((int)((freqInMhz-1) * 1000)) ?? "";      
     }
   }

source/ChanSort.Loader.PhilipsXml/Serializer.cs

@@ -225,8 +225,9 @@ namespace ChanSort.Loader.PhilipsXml
       chan.OriginalNetworkId = ParseInt(data.TryGet("Onid"));
       chan.TransportStreamId = ParseInt(data.TryGet("Tsid"));
       chan.ServiceId = ParseInt(data.TryGet("Sid"));
-      var freq = ParseInt(data.TryGet("Frequency"));
-      chan.FreqInMhz = freq;
+      chan.FreqInMhz = ParseInt(data.TryGet("Frequency")); ;
+      if (chan.FreqInMhz > 100000)
+        chan.FreqInMhz /= 1000;
       chan.ServiceType = ParseInt(data.TryGet("ServiceType"));
       chan.SignalSource |= LookupData.Instance.IsRadioTvOrData(chan.ServiceType);
       chan.SymbolRate = ParseInt(data.TryGet("SymbolRate"));
@@ -255,19 +256,6 @@ namespace ChanSort.Loader.PhilipsXml
     }
     #endregion
 
-    #region ParseInt()
-    private int ParseInt(string input)
-    {
-      if (string.IsNullOrWhiteSpace(input))
-        return 0;
-      if (input.Length > 2 && input[0] == '0' && char.ToLower(input[1]) == 'x')
-        return int.Parse(input.Substring(2), NumberStyles.HexNumber);
-      if (int.TryParse(input, out var value))
-        return value;
-      return 0;
-    }
-    #endregion
-
     #region DecodeName()
     private string DecodeName(string input)
     {

source/ChanSort.Loader.Sony/Serializer.cs

@@ -556,19 +556,6 @@ namespace ChanSort.Loader.Sony
     }
     #endregion
 
-    #region ParseInt()
-    private int ParseInt(string input)
-    {
-      if (string.IsNullOrWhiteSpace(input))
-        return 0;
-      if (input.Length > 2 && input[0] == '0' && char.ToLower(input[1]) == 'x')
-        return int.Parse(input.Substring(2), NumberStyles.HexNumber);
-      if (int.TryParse(input, out var value))
-        return value;
-      return 0;
-    }
-    #endregion
-
 
 
     #region Save()

source/changelog.md

@@ -4,6 +4,7 @@ ChanSort Change Log
 2019-11-11
 - LG hospitality TVs using files names like xx[modelname].TLL can now be loaded
   (They use the naming pattern of binary TLL files, but contain GlobalClone/XML text data)
+- fixed: Philips DVBC.XML files with frequency values in Hz instead of MHz caused an overflow exception
 
 2019-11-10
 - Sony: added support for independent favorite list ordering for Android channel lists (n)