private IEnumerable <ICdFile> DecodeInternal(IEnumerable <ICdSector> cdSectors)
{
var sectorInfos = _isoDescriptorSectorFinder
.Find(cdSectors.Select(s => _isoSectorInfoDecoder.Decode(s)));
var storageMediums = _isoStorageMediumDecoder.Decode(sectorInfos);
foreach (var volume in storageMediums.Volumes)
{
var pathLba = volume.TypeLPathTableLocation;
var pathTable = _isoPathTableDecoder.Decode(cdSectors.SkipWhile(cds => cds.Number != pathLba));
foreach (var path in pathTable)
{
var directory =
_isoDirectoryTableDecoder.Decode(
cdSectors.SkipWhile(cds => cds.Number != path.LocationOfExtent));
foreach (var entry in directory)
{
if (entry.Flags.HasFlag(IsoFileFlags.Directory))
{
continue;
}
yield return(new CdFile(() =>
_isoSectorStreamFactory.Open(
cdSectors.SkipWhile(cds => cds.Number != entry.LocationOfExtent), entry.DataLength))
{
Name = GetPath(pathTable, entry, path),
Length = entry.DataLength
});
}
}
}
}
public IsoStorageMedium Decode(IEnumerable <IsoSectorInfo> sectors)
{
var result = new IsoStorageMedium
{
BootRecords = new List <IsoBootRecord>(),
Volumes = new List <IsoVolume>()
};
var descriptorSectors = _isoDescriptorSectorFinder.Find(sectors).ToList();
var bootDescriptors = descriptorSectors.Where(s => s.UserData[0] == 0x00).ToList();
var primaryVolumeDescriptor = descriptorSectors.Single(s => s.UserData[0] == 0x01);
// var supplementaryVolumeDescriptors = descriptorSectors.Where(s => s.UserData[0] == 0x02).ToList();
// var partitionDescriptors = descriptorSectors.Where(s => s.UserData[0] == 0x03).ToList();
foreach (var bootDescriptor in bootDescriptors)
{
result.BootRecords.Add(_isoBootRecordDecoder.Decode(bootDescriptor.UserData));
}
var primaryVolume = _isoPrimaryVolumeDescriptorDecoder.Decode(primaryVolumeDescriptor.UserData);
result.Volumes.Add(primaryVolume);
return(result);
}
