private ChannelInfo LoadDvbsChannel(ChannelList list, DataMapping mapping, int recordIndex, DvbStringDecoder dvbStringDecoder)
{
var transponderId = mapping.GetWord("offTransponderIndex");
var progNr = mapping.GetWord("offProgNr");
var ch = new ChannelInfo(list.SignalSource, recordIndex, progNr, null);
// deleted channels must be kept in the list because their records must also be physically reordered when saving the list
if (progNr == 0xFFFF || transponderId == 0xFFFF)
{
ch.IsDeleted = true;
ch.OldProgramNr = -1;
return(ch);
}
// onid, tsid, pcrpid and vpid can be 0 in some lists
ch.PcrPid = mapping.GetWord("offPcrPid") & mapping.GetMask("maskPcrPid");
ch.Lock = mapping.GetFlag("Locked");
ch.OriginalNetworkId = mapping.GetWord("OffOnid");
ch.TransportStreamId = mapping.GetWord("offTsid");
ch.ServiceId = mapping.GetWord("offSid");
ch.VideoPid = mapping.GetWord("offVpid") & mapping.GetMask("maskVpid");
ch.Favorites = mapping.GetFlag("IsFav") ? Favorites.A : 0;
ch.OldProgramNr = progNr;
// the 0x1F as the first byte of the channel name is likely the DVB encoding indicator for UTF-8. So we use the DvbStringDecoder here
dvbStringDecoder.GetChannelNames(mapping.Data, mapping.BaseOffset + mapping.GetConst("offName", 0), mapping.GetConst("lenName", 0), out var longName, out var shortName);
ch.Name = longName.TrimEnd('\0');
ch.ShortName = shortName.TrimEnd('\0');
dvbStringDecoder.GetChannelNames(mapping.Data, mapping.BaseOffset + mapping.GetConst("offProvider", 0), mapping.GetConst("lenProvider", 0), out var provider, out _);
ch.Provider = provider.TrimEnd('\0');
// copy values from the satellite/transponder tables to the channel
if (this.DataRoot.Transponder.TryGetValue(transponderId, out var t))
{
ch.Transponder = t;
ch.FreqInMhz = t.FrequencyInMhz;
ch.SymbolRate = t.SymbolRate;
ch.SatPosition = t.Satellite?.OrbitalPosition;
ch.Satellite = t.Satellite?.Name;
if (t.OriginalNetworkId != 0)
{
ch.OriginalNetworkId = t.OriginalNetworkId;
}
if (t.TransportStreamId != 0)
{
ch.TransportStreamId = t.TransportStreamId;
}
}
return(ch);
}
private void ParseNames()
{
mapping.SetDataPtr(this.rawData, this.baseOffset);
DvbStringDecoder dec = new DvbStringDecoder(mapping.DefaultEncoding);
string longName, shortName;
dec.GetChannelNames(this.rawData, this.baseOffset + mapping.GetOffsets(_Name)[0], mapping.GetByte(_NameLength),
out longName, out shortName);
this.Name = longName;
this.ShortName = shortName;
}
private void InsertChannelData(DbCommand cmd, int listId)
{
PrepareChannelInsert(cmd);
DvbStringDecoder decoder = new DvbStringDecoder(this.DefaultEncoding);
DataMapping dvbsMapping = this.dvbsMappings.GetMapping(this.dvbsBlockSize);
dvbsMapping.SetDataPtr(this.fileContent, this.dvbsBlockOffset + this.satConfig.ChannelListOffset);
for (int slot = 0; slot < this.dvbsChannelCount; slot++)
{
cmd.Parameters["@listid"].Value = listId;
cmd.Parameters["@slot"].Value = slot;
cmd.Parameters["@seq"].Value = DBNull.Value;
cmd.Parameters["@isdel"].Value = dvbsMapping.GetFlag("InUse") ? 0 : 1;
cmd.Parameters["@progmask"].Value = dvbsMapping.GetWord("offProgramNr");
cmd.Parameters["@prognr"].Value = dvbsMapping.GetWord("offProgramNr") & 0x3FFF;
cmd.Parameters["@progfix"].Value = dvbsMapping.GetWord("offProgramNrPreset");
int absNameOffset = dvbsMapping.BaseOffset + dvbsMapping.GetOffsets("offName")[0];
string longName, shortName;
decoder.GetChannelNames(fileContent, absNameOffset, dvbsMapping.GetByte("offNameLength"), out longName, out shortName);
cmd.Parameters["@name"].Value = longName;
cmd.Parameters["@tpnr"].Value = dvbsMapping.GetWord("offTransponderIndex");
var transp = this.DataRoot.Transponder.TryGet(dvbsMapping.GetWord("offTransponderIndex"));
cmd.Parameters["@satnr"].Value = transp == null ? (object)DBNull.Value : transp.Satellite.Id;
cmd.Parameters["@onid"].Value = transp == null ? (object)DBNull.Value : transp.OriginalNetworkId;
cmd.Parameters["@tsid"].Value = transp == null ? (object)DBNull.Value : transp.TransportStreamId;
cmd.Parameters["@ssid"].Value = (int)dvbsMapping.GetWord("offServiceId");
cmd.Parameters["@uid"].Value = transp == null
? (object)DBNull.Value
: transp.TransportStreamId + "-" + transp.OriginalNetworkId + "-" +
dvbsMapping.GetWord("offServiceId");
cmd.Parameters["@favcrypt"].Value = (int)dvbsMapping.GetByte("offFavorites");
cmd.Parameters["@lockskiphide"].Value = (int)dvbsMapping.GetByte("offLock");
cmd.ExecuteNonQuery();
dvbsMapping.BaseOffset += this.satConfig.dvbsChannelLength;
}
}
/// <summary>
/// SATCODX103 files can contain channel names with unspecified implicit encoding, so we support reparsing based on a user selected default code page
/// </summary>
/// <param name="decoder"></param>
public void ParseName(DvbStringDecoder decoder)
{
var length = this.Length;
var start = this.FileOffset;
// 43-50 + 115-126 in version 103 or 115-131 in version 105: channel name
byte[] nameBytes = new byte[8 + 17];
var nameLen2 = Math.Min(length - 115, 17); // version 103 has 12 extra bytes for channel name, version 105 has 17
Array.Copy(data, start + 43, nameBytes, 0, 8);
Array.Copy(data, start + 115, nameBytes, 8, nameLen2);
// I have seen format 103 files using only implicit CP1252 encoding for Umlauts, as well as format 105 with implicit UTF-8/explicit DVB-encoding
var oldDefaultEncoding = decoder.DefaultEncoding;
if (nameLen2 > 12)
{
decoder.DefaultEncoding = Encoding.UTF8;
}
decoder.GetChannelNames(nameBytes, 0, nameBytes.Length, out var longName, out var shortName);
decoder.DefaultEncoding = oldDefaultEncoding;
this.Name = longName.TrimEnd();
this.ShortName = shortName.TrimEnd();
}
private void LoadChannels()
{
if (this.doc["channelList"] == null)
{
throw new FileLoadException("JSON does not contain a channelList node");
}
var dec = new DvbStringDecoder(this.DefaultEncoding);
int i = 0;
foreach (var node in this.doc["channelList"])
{
var ch = new GcChannel <JToken>(0, i, node);
ch.PcrPid = (int)node["pcrPid"];
ch.IsDisabled = (bool)node["disabled"];
ch.FreqInMhz = (int)node["frequency"];
if (ch.FreqInMhz >= 100000 && ch.FreqInMhz < 1000000) // DVBS is given in MHz, DVBC/T in kHz
{
ch.FreqInMhz /= 1000;
}
ch.AudioPid = (int)node["audioPid"];
ch.Source = (string)node["sourceIndex"];
if (ch.Source == "SATELLITE DIGITAL")
{
ch.SignalSource |= SignalSource.DvbS;
}
else if (ch.Source == "CABLE DIGITAL")
{
ch.SignalSource |= SignalSource.DvbC;
}
else if (ch.Source.Contains("DIGITAL")) // not seen yet. maybe DIGITAL ANTENNA?
{
ch.SignalSource |= SignalSource.DvbT;
}
ch.Skip = (bool)node["skipped"];
ch.Hidden = (bool)node["Invisible"];
ch.IsDeleted = (bool)node["deleted"];
//if (int.TryParse((string) node["satelliteId"], out var satId))
ch.Satellite = (string)node["satelliteId"]; //this.DataRoot.Satellites.TryGet(satId);
ch.Encrypted = (bool)node["scrambled"];
var nameBytes = Convert.FromBase64String((string)node["chNameBase64"]);
dec.GetChannelNames(nameBytes, 0, nameBytes.Length, out var name, out var shortName);
ch.Name = name;
ch.ShortName = shortName;
ch.VideoPid = (int)node["videoPid"];
var transSystem = (string)node["transSystem"];
var tpId = (string)node["tpId"];
if (tpId != null && tpId.Length == 10)
{
ch.Transponder = this.DataRoot.Transponder.TryGet((int.Parse(tpId.Substring(0, 4)) << 16) + int.Parse(tpId.Substring(4))); // satId + freq, e.g. 0192126041
}
ch.TransportStreamId = (int)node["TSID"];
ch.OldProgramNr = ch.IsDeleted ? -1 : (int)node["majorNumber"];
ch.ServiceType = (int)node["serviceType"];
ch.Lock = (bool)node["locked"];
if (string.IsNullOrWhiteSpace(ch.Name))
{
ch.Name = (string)node["channelName"];
}
ch.ServiceId = (int)node["SVCID"];
if (ch.ServiceId == 0)
{
ch.ServiceId = (int)node["programNum"];
}
ch.OriginalNetworkId = (int)node["ONID"];
ch.SignalSource |= LookupData.Instance.IsRadioTvOrData(ch.ServiceType);
if ((ch.OldProgramNr & 0x4000) != 0)
{
ch.OldProgramNr &= 0x3FFF;
ch.SignalSource |= SignalSource.Radio;
}
var list = this.DataRoot.GetChannelList(ch.SignalSource);
this.DataRoot.AddChannel(list, ch);
}
}
private void ParseChannelInfoNodes(XmlNode itemNode, GcChannel ch, bool onlyNames = false)
{
bool hasHexName = false;
int mapType = 0;
foreach (XmlNode info in itemNode.ChildNodes)
{
if (onlyNames && info.LocalName != "vchName" && info.LocalName != "hexVchName")
{
continue;
}
switch (info.LocalName)
{
// common to ATV and DTV
case "prNum":
ch.OldProgramNr = int.Parse(info.InnerText);
if (ch.OldProgramNr != -1) // older versions of ChanSort accidentally saved -1 instead of IsDeleted=1
{
ch.OldProgramNr &= 0x3FFF;
}
break;
case "vchName":
// In old file format versions, this field contains binary data stuffed into UTF8 envelopes. that data is correct
// In newer file formats, this field contains plain text but fails to hold localized characters. The hexVchName field, if present, contains the correct data then.
if (!hasHexName)
{
ch.Name = ParseName(info.InnerText);
}
break;
case "sourceIndex":
var source = int.Parse(info.InnerText);
if (source == 2)
{
ch.SignalSource |= SignalSource.Cable;
}
else if (source == 7)
{
ch.SignalSource |= SignalSource.Sat;
}
else
{
ch.SignalSource |= SignalSource.Antenna;
}
break;
case "mapType":
mapType = int.Parse(info.InnerText);
break;
case "mapAttr":
if (mapType == 1)
{
ch.Favorites = (Favorites)int.Parse(info.InnerText);
}
break;
case "isBlocked":
ch.Lock = int.Parse(info.InnerText) == 1;
break;
case "isSkipped":
ch.Skip = int.Parse(info.InnerText) == 1;
break;
// ATV
case "pllData":
ch.FreqInMhz = (decimal)int.Parse(info.InnerText) / 20;
break;
// DTV
case "original_network_id":
ch.OriginalNetworkId = int.Parse(info.InnerText);
break;
case "transport_id":
ch.TransportStreamId = int.Parse(info.InnerText);
break;
case "service_id": // also same value in "programNo"
ch.ServiceId = int.Parse(info.InnerText);
break;
case "serviceType":
ch.ServiceType = int.Parse(info.InnerText);
ch.SignalSource |= LookupData.Instance.IsRadioTvOrData(ch.ServiceType);
break;
case "frequency":
ch.FreqInMhz = int.Parse(info.InnerText);
if ((ch.SignalSource & SignalSource.Sat) == 0)
{
ch.FreqInMhz /= 1000;
}
break;
case "isInvisable": // that spelling error is part of the XML
ch.Hidden = int.Parse(info.InnerText) == 1;
break;
case "isNumUnSel":
// ?
break;
case "isDisabled":
ch.IsDisabled = int.Parse(info.InnerText) != 0;
break;
case "isDeleted":
ch.IsDeleted = int.Parse(info.InnerText) != 0;
break;
case "usSatelliteHandle":
int satIndex = int.Parse(info.InnerText);
string satPos = this.satPositionByIndex.TryGet(satIndex);
ch.SatPosition = satPos ?? satIndex.ToString(); // fallback to ensure unique UIDs
ch.Satellite = satPos;
break;
// not present in all XML files. if present, the <vchName> might be empty or corrupted
case "hexVchName":
var bytes = Tools.HexDecode(info.InnerText);
string longName, shortName;
dvbStringDecoder.GetChannelNames(bytes, 0, bytes.Length, out longName, out shortName);
ch.Name = longName;
ch.ShortName = shortName;
hasHexName = true;
break;
default:
if (info.LocalName.StartsWith("favoriteIdx"))
{
int n = info.LocalName[11] - 'A';
var mask = 1 << n;
this.Features.SupportedFavorites |= (Favorites)mask;
this.Features.SortedFavorites = true;
if (((int)ch.Favorites & mask) != 0) // xml element holds bad index data (250) when fav is not set
{
ch.SetOldPosition(n + 1, int.Parse(info.InnerText));
}
}
break;
}
}
}
internal Channels(int pos, string line, byte[] data, int start, int length, DvbStringDecoder decoder)
{
this.FileOffset = start;
this.Length = length;
this.RecordIndex = pos;
this.RecordOrder = this.OldProgramNr = pos + 1;
if (!line.StartsWith("SATCODX"))
{
throw new FileLoadException("Only SAT channels are supported");
}
if (line.Length < 106)
{
throw new FileLoadException("Unrecognized channel format");
}
this.Satellite = line.Substring(10, 18);
var type = line[28];
this.SignalSource = SignalSource.Digital | SignalSource.Sat | (type == 'T' ? SignalSource.Tv : type == 'R' ? SignalSource.Radio : 0);
this.ServiceType = type == 'T' ? 1 : type == 'R' ? 2 : 0; // 1=SD-TV, 2=Radio
if (int.TryParse(line.Substring(34, 5), out var mhz))
{
this.FreqInMhz = mhz;
}
this.Polarity = line[39] == '1' ? 'H' : 'V';
byte[] nameBytes = new byte[8 + 17];
var nameLen2 = Math.Min(length - 115, 17); // version 103 has 12 extra bytes for channel name, version 105 has 17
Array.Copy(data, start + 43, nameBytes, 0, 8);
Array.Copy(data, start + 115, nameBytes, 8, nameLen2);
decoder.GetChannelNames(nameBytes, 0, nameBytes.Length, out var longName, out var shortName);
this.Name = longName.TrimEnd();
this.ShortName = shortName.TrimEnd();
var spos = line.Substring(51, 4).TrimStart('0');
this.SatPosition = spos.Substring(0, spos.Length - 1) + CultureInfo.CurrentCulture.NumberFormat.NumberDecimalSeparator + spos.Substring(spos.Length - 1);
if (int.TryParse(line.Substring(69, 5), out var symrate))
{
this.SymbolRate = symrate;
}
if (int.TryParse(line.Substring(87, 5), out var sid))
{
this.ServiceId = sid;
}
if (int.TryParse(line.Substring(92, 5), out var onid))
{
this.OriginalNetworkId = onid;
}
if (int.TryParse(line.Substring(97, 5), out var tsid))
{
this.TransportStreamId = tsid;
}
}
internal Channel(int pos, string line, byte[] data, int start, int length, DvbStringDecoder decoder)
{
this.FileOffset = start;
this.Length = length;
this.RecordIndex = pos;
this.RecordOrder = this.OldProgramNr = pos + 1;
if (!line.StartsWith("SATCODX"))
{
throw new FileLoadException("Only SAT channels are supported");
}
if (line.Length < 106)
{
throw new FileLoadException("Unrecognized channel format");
}
// 10-27: satellite name
this.Satellite = line.Substring(10, 18);
// 28: channel type
var type = line[28];
this.SignalSource = SignalSource.Digital | SignalSource.Sat | (type == 'T' ? SignalSource.Tv : type == 'R' ? SignalSource.Radio : 0);
this.ServiceTypeName = type == 'T' ? "TV" : type == 'R' ? "Radio" : type == 'D' ? "Data" : "Other";
// 29-32: broadcast system
// 33-41: frequency in kHz
if (int.TryParse(line.Substring(33, 9), out var khz))
{
this.FreqInMhz = (decimal)khz / 1000;
}
// 42: polarity
this.Polarity = line[42] == '1' ? 'H' : 'V';
// 43-50 + (115-126 or 115-131): channel name
byte[] nameBytes = new byte[8 + 17];
var nameLen2 = Math.Min(length - 115, 17); // version 103 has 12 extra bytes for channel name, version 105 has 17
Array.Copy(data, start + 43, nameBytes, 0, 8);
Array.Copy(data, start + 115, nameBytes, 8, nameLen2);
decoder.GetChannelNames(nameBytes, 0, nameBytes.Length, out var longName, out var shortName);
this.Name = longName.TrimEnd();
this.ShortName = shortName.TrimEnd();
// 51-54: sat position
var spos = line.Substring(51, 4).TrimStart('0');
this.SatPosition = spos.Substring(0, spos.Length - 1) + CultureInfo.CurrentCulture.NumberFormat.NumberDecimalSeparator + spos.Substring(spos.Length - 1);
// 69-73: symbol rate
if (int.TryParse(line.Substring(69, 5), out var symrate))
{
this.SymbolRate = symrate;
}
// 74: FEC 0=-, 1=1/2, 2=2/3, 3=3/4, 5=5/6, 7=7/8
// 75-78: vpid or ____
// 79-82: apid or ____
// 83-86: pcrpid or ____
// 87-91: sid
if (int.TryParse(line.Substring(87, 5), out var sid))
{
this.ServiceId = sid;
}
// 92-96: nid / onid
if (int.TryParse(line.Substring(92, 5), out var onid))
{
this.OriginalNetworkId = onid;
}
// 97-101: tsid
if (int.TryParse(line.Substring(97, 5), out var tsid))
{
this.TransportStreamId = tsid;
}
// 102-104: language
// 106-107: country code
// 108-110: language code
// 111-114: crypto code
}