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https://github.com/PredatH0r/ChanSort.git
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added experimental loader for various format versions of dtv_cmdb_2.bin used by some models from Sharp,Toshiba, Dyon, Philips, OK., ...
This commit is contained in:
Horst Beham
207
source/ChanSort.Loader.CmdbBin/CmdbFileSerializer.cs
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207
source/ChanSort.Loader.CmdbBin/CmdbFileSerializer.cs
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using System;
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using System.Collections.Generic;
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using System.Diagnostics;
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using System.IO;
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using System.Linq;
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using System.Reflection;
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using System.Text;
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using ChanSort.Api;
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namespace ChanSort.Loader.CmdbBin
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{
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public class CmdbFileSerializer : SerializerBase
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{
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private IniFile ini;
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private readonly MappingPool<DataMapping> satMappings = new MappingPool<DataMapping>("dtv_cmdb_2.bin");
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private readonly ChannelList dvbsTv = new ChannelList(SignalSource.DvbS | SignalSource.Tv, "Sat TV");
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private readonly ChannelList dvbsRadio = new ChannelList(SignalSource.DvbS | SignalSource.Radio, "Sat Radio");
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private readonly ChannelList dvbsData = new ChannelList(SignalSource.DvbS | SignalSource.Radio, "Sat Data");
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private DvbStringDecoder dvbStringDecoder;
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private bool loaded = false;
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public CmdbFileSerializer(string inputFile) : base(inputFile)
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{
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this.DataRoot.AddChannelList(dvbsTv);
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this.DataRoot.AddChannelList(dvbsRadio);
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// this.DataRoot.AddChannelList(dvbsData); // there seem to be multiple data lists with Toshiba TVs which all have their own numbering starting at 1. Better don't show data channels at all than dupes
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this.ReadConfigurationFromIniFile();
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}
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#region ReadConfigurationFromIniFile()
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private void ReadConfigurationFromIniFile()
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{
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string iniFile = this.GetType().Assembly.Location.ToLowerInvariant().Replace(".dll", ".ini");
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this.ini = new IniFile(iniFile);
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foreach (var section in ini.Sections)
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{
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int idx = section.Name.IndexOf(":");
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if (idx < 0)
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continue;
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string recordLength = idx < 0 ? "" : section.Name.Substring(idx + 1);
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if (section.Name.StartsWith("dtv_cmdb_2"))
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satMappings.AddMapping(recordLength, new DataMapping(section));
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}
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}
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#endregion
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#region Load()
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public override void Load()
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{
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this.dvbStringDecoder = new DvbStringDecoder(this.DefaultEncoding);
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foreach (var file in Directory.GetFiles(Path.GetDirectoryName(this.FileName)))
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{
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var lower = Path.GetFileName(file).ToLowerInvariant();
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var size = (int)new FileInfo(file).Length;
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switch (lower)
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{
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case "dtv_cmdb_2.bin":
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LoadFile(file, this.dvbsTv, this.dvbsRadio, this.dvbsData, this.satMappings.GetMapping(size));
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break;
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}
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}
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if (!this.loaded)
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throw new FileLoadException("\"" + this.FileName + "\" does not belong to a dtv_cmdb_* file system");
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}
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#endregion
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#region LoadFile()
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private void LoadFile(string file, ChannelList tvList, ChannelList radioList, ChannelList dataList, DataMapping fileMapping)
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{
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var data = File.ReadAllBytes(file);
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var sec = fileMapping.Settings;
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LoadBitmappedRecords(data, sec, "Satellite", ReadSatellite);
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LoadBitmappedRecords(data, sec, "Transponder", ReadTransponder);
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LoadBitmappedRecords(data, sec, "Channel", (map, index) => ReadChannel(map, tvList, radioList, dvbsData, index));
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this.loaded = true;
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}
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#endregion
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#region LoadBitmappedRecords()
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private void LoadBitmappedRecords(byte[] data, IniFile.Section sec, string recordType, Action<DataMapping, int> readRecord)
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{
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var lenRecord = sec.GetInt($"len{recordType}Record");
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var map = new DataMapping(this.ini.GetSection($"dvbs{recordType}:{lenRecord}"));
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map.DefaultEncoding = this.DefaultEncoding;
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map.SetDataPtr(data, sec.GetInt($"off{recordType}Record"));
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var off = sec.GetInt($"off{recordType}Bitmap");
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var len = sec.GetInt($"len{recordType}Bitmap");
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var count = sec.GetInt($"num{recordType}Record");
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int index = 0;
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for (int i = 0; i < len; i++)
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{
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var b = data[off + i];
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for (byte mask = 1; mask != 0; mask <<= 1)
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{
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if ((b & mask) != 0)
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readRecord(map, index);
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map.BaseOffset += lenRecord;
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if (++index >= count)
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break;
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}
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}
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}
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#endregion
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private void ReadSatellite(DataMapping map, int index)
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{
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var sat = new Satellite(index);
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sat.Name = map.GetString("offName", map.Settings.GetInt("lenName"));
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this.DataRoot.AddSatellite(sat);
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}
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private void ReadTransponder(DataMapping map, int index)
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{
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//var idx = map.GetWord("offTransponderIndex"); // seems to be some logical number, skipping a new numbers here and there
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var tp = new Transponder(index);
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var satIndex = map.GetWord("offSatelliteIndex");
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tp.Satellite = this.DataRoot.Satellites.TryGet(satIndex);
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tp.OriginalNetworkId = map.GetWord("offOriginalNetworkId");
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tp.TransportStreamId = map.GetWord("offTransportStreamId");
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tp.FrequencyInMhz = map.GetDword("offFreqInMhz");
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tp.SymbolRate = map.GetWord("offSymbolRate");
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this.DataRoot.AddTransponder(tp.Satellite, tp);
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}
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#region ReadChannel()
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private void ReadChannel(DataMapping chanMap, ChannelList tvList, ChannelList radioList, ChannelList dataList, int recordIndex)
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{
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var channelType = (int)chanMap.GetByte("offChannelType");
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if (channelType == 0) // some file format versions store the channel type in the upper nibble of a byte
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channelType = chanMap.GetByte("offChannelTypeOld") >> 4;
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var serviceType = chanMap.GetByte("offServiceType");
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var apid = chanMap.GetWord("offAudioPid") & 0x1FFF;
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var vpid = chanMap.GetWord("offVideoPid") & 0x1FFF;
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ChannelList list;
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if (channelType != 0)
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list = channelType == 1 ? tvList : channelType == 2 ? radioList : dataList;
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else if (serviceType != 0)
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{
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var type = LookupData.Instance.IsRadioTvOrData(serviceType);
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list = type == SignalSource.Radio ? radioList : type == SignalSource.Tv ? tvList : dataList;
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}
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else
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{
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//list = vpid != 0 && vpid != 0x1FFF ? tvList : apid != 0 && apid != 0x1FFF ? radioList : dataList;
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list = tvList;
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}
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var progNr = (int)chanMap.GetWord("offProgramNr");
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if (progNr == 0xFFFE)
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progNr = -2;
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var ch = new ChannelInfo(list.SignalSource, recordIndex, progNr, "");
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ch.ServiceType = serviceType;
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ch.ServiceTypeName = Api.LookupData.Instance.GetServiceTypeDescription(ch.ServiceType);
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ch.PcrPid = chanMap.GetWord("offPcrPid") & 0x1FFF;
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ch.ServiceId = chanMap.GetWord("offServiceId");
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ch.AudioPid = apid;
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ch.VideoPid = vpid;
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var off = chanMap.BaseOffset + chanMap.GetOffsets("offName")[0];
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this.dvbStringDecoder.GetChannelNames(chanMap.Data, off, chanMap.Settings.GetInt("lenName"), out var longName, out var shortName);
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ch.Name = longName;
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ch.ShortName = shortName;
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var offProv = chanMap.GetOffsets("offProvider");
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if (offProv.Length > 0)
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{
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off = chanMap.BaseOffset + offProv[0];
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this.dvbStringDecoder.GetChannelNames(chanMap.Data, off, chanMap.Settings.GetInt("lenName"), out longName, out _);
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ch.Provider = longName;
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}
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var offDebug = chanMap.Settings.GetInt("offDebug");
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var lenDebug = chanMap.Settings.GetInt("lenDebug");
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ch.AddDebug(chanMap.Data, chanMap.BaseOffset + offDebug, lenDebug);
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var transponderIndex = chanMap.GetWord("offTransponderIndex");
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var tp = this.DataRoot.Transponder.TryGet(transponderIndex);
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if (tp != null)
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{
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ch.Transponder = tp;
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ch.OriginalNetworkId = tp.OriginalNetworkId;
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ch.TransportStreamId = tp.TransportStreamId;
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ch.FreqInMhz = tp.FrequencyInMhz;
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ch.SymbolRate = tp.SymbolRate;
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ch.Satellite = tp.Satellite?.Name;
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}
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this.DataRoot.AddChannel(list, ch);
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}
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#endregion
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public override void Save(string tvOutputFile)
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{
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throw new NotImplementedException();
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}
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}
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}
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