private ContinuationSystemUseEntry Parse(IsoContext context, byte[] data, int offset) { ContinuationSystemUseEntry contEntry = null; SuspExtension extension = null; if (context.SuspExtensions != null && context.SuspExtensions.Count > 0) { extension = context.SuspExtensions[0]; } int pos = offset; while (data.Length - pos > 4) { int len; SystemUseEntry entry = SystemUseEntry.Parse(data, pos, context.VolumeDescriptor.CharacterEncoding, extension, out len); pos += len; if (entry == null) { // Skip if unknown continue; } switch (entry.Name) { case "ST": // Abort return(contEntry); case "CE": contEntry = (ContinuationSystemUseEntry)entry; break; case "ES": ExtensionSelectSystemUseEntry esEntry = (ExtensionSelectSystemUseEntry)entry; extension = context.SuspExtensions[esEntry.SelectedExtension]; break; case "PD": break; case "SP": case "ER": StoreEntry(null, entry); break; default: StoreEntry(extension, entry); break; } } return(contEntry); }
public SuspRecords(IsoContext context, byte[] data, int offset) { _records = new Dictionary <string, Dictionary <string, List <SystemUseEntry> > >(); ContinuationSystemUseEntry contEntry = Parse(context, data, offset + context.SuspSkipBytes); while (contEntry != null) { context.DataStream.Position = (contEntry.Block * (long)context.VolumeDescriptor.LogicalBlockSize) + contEntry.BlockOffset; byte[] contData = Utilities.ReadFully(context.DataStream, (int)contEntry.Length); contEntry = Parse(context, contData, 0); } }