Nemcio/ChanSort
1
0
Fork 0
mirror of https://github.com/PredatH0r/ChanSort.git synced 2026-01-26 17:19:02 +01:00
Code Issues Packages Projects Releases Wiki Activity

added support for 3 different .DBM DVB-S sat receiver configurations

Browse Source
This commit is contained in:
Horst Beham
2023-01-05 19:18:43 +01:00
parent 7a7e510c5d
commit cff07dbab2
7 changed files with 444 additions and 48 deletions
Download Patch File Download Diff File Expand all files Collapse all files

119
source/ChanSort.Loader.DBM/DbmSerializer.cs
View File

@@ -7,21 +7,20 @@ using ChanSort.Api;
namespace ChanSort.Loader.DBM
{
/*
Loads .DBM binary channel lists from Xoro, TechniSat, ...
There are different variants for DVB-S, DVB-C, ... which require specific configuration entries in ChanSort.Loader.DBM.ini
*/
public class DbmSerializer : SerializerBase
{
private byte[] data;
private readonly IniFile ini;
private IniFile.Section sec;
private DataMapping mapping;
private readonly ChannelList allChannels = new ChannelList(SignalSource.All, "All");
private byte[] data;
private int fileSize;
private readonly StringBuilder logMessages = new StringBuilder();
private bool isDvbS;
private readonly ChannelList allChannels = new(SignalSource.All, "All");
private readonly StringBuilder logMessages = new();
#region ctor()
public DbmSerializer(string inputFile) : base(inputFile)
@@ -60,28 +59,27 @@ namespace ChanSort.Loader.DBM
public override void Load()
{
var info = new FileInfo(this.FileName);
this.fileSize = (int)info.Length;
this.sec = ini.GetSection("dbm:" + this.fileSize);
this.sec = ini.GetSection("dbm:" + info.Length);
if (sec == null)
throw LoaderException.Fail($"No configuration for .DBM files with size {info.Length} in .ini file");
if (!sec.GetBool("isDvbS"))
this.isDvbS = sec.GetBool("isDvbS");
if (!isDvbS)
allChannels.VisibleColumnFieldNames.Remove(nameof(ChannelInfo.Satellite));
this.data = File.ReadAllBytes(this.FileName);
this.mapping = new DataMapping(sec);
this.mapping.SetDataPtr(data, 0);
ValidateChecksum(data, sec);
LoadTransponder(sec, data);
LoadChannels(sec, data);
ValidateChecksum();
LoadSatellites();
LoadTransponder();
LoadChannels();
}
#endregion
#region ValidateChecksum()
private void ValidateChecksum(byte[] data, IniFile.Section sec)
private void ValidateChecksum()
{
var expectedChecksum = BitConverter.ToUInt16(data, 0);
var calculatedChecksum = CalcChecksum(data, sec.GetInt("offData"), (int)mapping.GetDword("offDataLength"));
@@ -91,18 +89,47 @@ namespace ChanSort.Loader.DBM
throw LoaderException.Fail(msg);
}
}
#endregion
#region LoadSatellites()
private void LoadSatellites()
{
if (!this.isDvbS)
return;
var num = sec.GetInt("numSatellite");
var offBitmap = sec.GetInt("offSatelliteBitmap");
mapping.SetDataPtr(data, sec.GetInt("offSatelliteData"));
var recordSize = sec.GetInt("lenSatelliteData");
for (int i = 0; i < num; i++)
{
if ((data[offBitmap + i / 8] & (1 << (i & 0x07))) != 0)
{
var s = new Satellite(i);
s.Name = mapping.GetString("offSatName", sec.GetInt("lenSatName"));
var pos = mapping.GetWord("offOrbitalPos");
var suffix = pos <= 180 ? "E" : "W";
if (pos >= 180 && pos <= 360)
pos = (ushort)(360 - pos);
s.OrbitalPosition = $"{pos / 10}.{pos % 10}{suffix}";
this.DataRoot.AddSatellite(s);
}
mapping.BaseOffset += recordSize;
}
}
#endregion
#region LoadTransponder()
private void LoadTransponder(IniFile.Section sec, byte[] data)
private void LoadTransponder()
{
var num = sec.GetInt("numTransponder");
var offBitmap = sec.GetInt("offTransponderBitmap");
var map = new DataMapping(ini.GetSection("transponder:" + this.fileSize));
map.SetDataPtr(data, sec.GetInt("offTransponderData"));
mapping.SetDataPtr(data, sec.GetInt("offTransponderData"));
var recordSize = sec.GetInt("lenTransponderData");
for (int i = 0; i < num; i++)
@@ -110,26 +137,26 @@ namespace ChanSort.Loader.DBM
if ((data[offBitmap + i / 8] & (1 << (i & 0x07))) != 0)
{
var t = new Transponder(i);
t.FrequencyInMhz = (decimal)map.GetDword("offFreq") / 1000;
t.SymbolRate = (int)map.GetDword("offSymRate");
t.FrequencyInMhz = (decimal)mapping.GetDword("offFreq");
if (!isDvbS)
t.FrequencyInMhz /= 1000;
t.SymbolRate = (int)mapping.GetWord("offSymRate");
this.DataRoot.AddTransponder(null, t);
}
map.BaseOffset += recordSize;
mapping.BaseOffset += recordSize;
}
}
#endregion
#region LoadChannels()
private void LoadChannels(IniFile.Section sec, byte[] data)
private void LoadChannels()
{
var num = sec.GetInt("numChannel");
var offBitmap = sec.GetInt("offChannelBitmap");
var sec2 = ini.GetSection("channel:" + this.fileSize);
var map = new DataMapping(sec2);
map.SetDataPtr(data, sec.GetInt("offChannelData"));
mapping.SetDataPtr(data, sec.GetInt("offChannelData"));
var recordSize = sec.GetInt("lenChannelData");
var dec = new DvbStringDecoder(this.DefaultEncoding);
@@ -139,17 +166,17 @@ namespace ChanSort.Loader.DBM
if ((data[offBitmap + i / 8] & (1 << (i & 0x07))) != 0)
{
var c = new ChannelInfo(SignalSource.Any, i, -1, null);
dec.GetChannelNames(data, map.BaseOffset + sec2.GetInt("offName"), sec2.GetInt("lenName"), out var longName, out var shortName);
dec.GetChannelNames(data, mapping.BaseOffset + sec.GetInt("offName"), sec.GetInt("lenName"), out var longName, out var shortName);
c.Name = longName;
c.ShortName = shortName;
c.OldProgramNr = map.GetWord("offProgNr") + 1;
c.OriginalNetworkId = map.GetWord("offOnid");
c.TransportStreamId = map.GetWord("offTsid");
c.ServiceId = map.GetWord("offSid");
c.PcrPid = map.GetWord("offPcrPid");
c.VideoPid = map.GetWord("offVideoPid");
c.OldProgramNr = mapping.GetWord("offProgNr") + 1;
c.OriginalNetworkId = mapping.GetWord("offOnid");
c.TransportStreamId = mapping.GetWord("offTsid");
c.ServiceId = mapping.GetWord("offSid");
c.PcrPid = mapping.GetWord("offPcrPid");
c.VideoPid = mapping.GetWord("offVideoPid");
var transpIdx = map.GetByte("offTransponderIndex");
var transpIdx = isDvbS ? mapping.GetWord("offTransponderIndex") : mapping.GetByte("offTransponderIndex");
var tp = this.DataRoot.Transponder.TryGet(transpIdx);
if (tp != null)
{
@@ -157,10 +184,16 @@ namespace ChanSort.Loader.DBM
c.SymbolRate = tp.SymbolRate;
}
if (isDvbS && this.DataRoot.Satellites.TryGetValue(mapping.GetWord("offSatelliteIndex"), out var sat))
{
c.Satellite = sat.Name;
c.SatPosition = sat.OrbitalPosition;
}
this.DataRoot.AddChannel(this.allChannels, c);
}
map.BaseOffset += recordSize;
mapping.BaseOffset += recordSize;
}
}
#endregion
@@ -170,19 +203,18 @@ namespace ChanSort.Loader.DBM
#region Save()
public override void Save()
{
var sec2 = ini.GetSection("channel:" + this.fileSize);
var map = new DataMapping(sec2);
var baseOffset = sec.GetInt("offChannelData");
map.SetDataPtr(data, baseOffset);
var recordSize = sec.GetInt("lenChannelData");
foreach (var chan in this.allChannels.Channels)
{
if (chan.IsProxy) continue;
map.BaseOffset = baseOffset + (int)chan.RecordIndex * recordSize;
map.SetWord("offProgNr", chan.NewProgramNr - 1);
if (chan.IsProxy)
continue;
mapping.BaseOffset = baseOffset + (int)chan.RecordIndex * recordSize;
mapping.SetWord("offProgNr", chan.NewProgramNr - 1);
}
mapping.BaseOffset = 0;
var calculatedChecksum = CalcChecksum(data, sec.GetInt("offData"), (int)mapping.GetDword("offDataLength"));
mapping.SetWord("offChecksum", calculatedChecksum);
File.WriteAllBytes(this.FileName, this.data);
@@ -204,7 +236,6 @@ namespace ChanSort.Loader.DBM
}
#endregion
// framework support methods
#region GetFileInformation