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https://github.com/aaru-dps/Aaru.git
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284 lines
11 KiB
C#
284 lines
11 KiB
C#
// /***************************************************************************
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// Aaru Data Preservation Suite
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// ----------------------------------------------------------------------------
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//
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// Filename : Tracks.cs
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// Author(s) : Natalia Portillo <claunia@claunia.com>
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//
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// Component : CompactDisc dumping.
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//
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// --[ Description ] ----------------------------------------------------------
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//
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// Calculates CompactDisc tracks.
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//
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// --[ License ] --------------------------------------------------------------
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//
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// This program is free software: you can redistribute it and/or modify
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// it under the terms of the GNU General Public License as
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// published by the Free Software Foundation, either version 3 of the
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// License, or (at your option) any later version.
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//
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// This program is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU General Public License for more details.
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//
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// You should have received a copy of the GNU General Public License
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// along with this program. If not, see <http://www.gnu.org/licenses/>.
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//
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// ----------------------------------------------------------------------------
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// Copyright © 2011-2025 Natalia Portillo
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// ****************************************************************************/
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// ReSharper disable JoinDeclarationAndInitializer
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// ReSharper disable InlineOutVariableDeclaration
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// ReSharper disable TooWideLocalVariableScope
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using System;
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using System.Collections.Generic;
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using System.Linq;
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using Aaru.CommonTypes;
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using Aaru.CommonTypes.Enums;
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using Aaru.CommonTypes.Structs;
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using Aaru.Decoders.CD;
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using Aaru.Devices;
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namespace Aaru.Core.Devices.Dumping;
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partial class Dump
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{
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/// <summary>Reads the TOC, processes it, returns the track list and last sector</summary>
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/// <param name="dev">Device</param>
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/// <param name="dumpLog">Dump log</param>
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/// <param name="force">Force dump enabled</param>
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/// <param name="lastSector">Last sector number</param>
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/// <param name="leadOutStarts">Lead-out starts</param>
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/// <param name="mediaTags">Media tags</param>
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/// <param name="stoppingErrorMessage">Stopping error message handler</param>
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/// <param name="toc">Full CD TOC</param>
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/// <param name="trackFlags">Track flags</param>
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/// <param name="updateStatus">Update status handler</param>
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/// <returns>List of tracks</returns>
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public static Track[] GetCdTracks(Device dev, bool force, out long lastSector, Dictionary<int, long> leadOutStarts,
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Dictionary<MediaTagType, byte[]> mediaTags,
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ErrorMessageHandler stoppingErrorMessage, out FullTOC.CDFullTOC? toc,
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Dictionary<byte, byte> trackFlags, UpdateStatusHandler updateStatus)
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{
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byte[] cmdBuf; // Data buffer
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const uint sectorSize = 2352; // Full sector size
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bool sense; // Sense indicator
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List<Track> trackList = []; // Tracks in disc
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byte[] tmpBuf; // Temporary buffer
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toc = null;
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lastSector = 0;
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TrackType leadoutTrackType = TrackType.Audio;
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// We discarded all discs that falsify a TOC before requesting a real TOC
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// No TOC, no CD (or an empty one)
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updateStatus?.Invoke(Localization.Core.Reading_full_TOC);
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sense = dev.ReadRawToc(out cmdBuf, out _, 0, dev.Timeout, out _);
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if(!sense)
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{
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toc = FullTOC.Decode(cmdBuf);
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if(toc.HasValue)
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{
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tmpBuf = new byte[cmdBuf.Length - 2];
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Array.Copy(cmdBuf, 2, tmpBuf, 0, cmdBuf.Length - 2);
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mediaTags?.Add(MediaTagType.CD_FullTOC, tmpBuf);
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}
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}
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updateStatus?.Invoke(Localization.Core.Building_track_map);
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if(toc.HasValue)
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{
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FullTOC.TrackDataDescriptor[] sortedTracks =
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toc.Value.TrackDescriptors.OrderBy(static track => track.POINT).ToArray();
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foreach(FullTOC.TrackDataDescriptor trk in sortedTracks.Where(static trk => trk.ADR is 1 or 4))
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{
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switch(trk.POINT)
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{
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case >= 0x01 and <= 0x63:
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trackList.Add(new Track
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{
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Sequence = trk.POINT,
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Session = trk.SessionNumber,
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Type = (TocControl)(trk.CONTROL & 0x0D) == TocControl.DataTrack ||
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(TocControl)(trk.CONTROL & 0x0D) == TocControl.DataTrackIncremental
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? TrackType.Data
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: TrackType.Audio,
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StartSector =
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(ulong)(trk.PHOUR * 3600 * 75 + trk.PMIN * 60 * 75 + trk.PSEC * 75 + trk.PFRAME - 150),
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BytesPerSector = (int)sectorSize,
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RawBytesPerSector = (int)sectorSize
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});
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trackFlags?.Add(trk.POINT, trk.CONTROL);
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break;
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case 0xA2:
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{
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int phour, pmin, psec, pframe;
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if(trk.PFRAME == 0)
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{
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pframe = 74;
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if(trk.PSEC == 0)
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{
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psec = 59;
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if(trk.PMIN == 0)
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{
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pmin = 59;
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phour = trk.PHOUR - 1;
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}
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else
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{
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pmin = trk.PMIN - 1;
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phour = trk.PHOUR;
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}
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}
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else
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{
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psec = trk.PSEC - 1;
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pmin = trk.PMIN;
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phour = trk.PHOUR;
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}
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}
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else
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{
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pframe = trk.PFRAME - 1;
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psec = trk.PSEC;
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pmin = trk.PMIN;
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phour = trk.PHOUR;
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}
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lastSector = phour * 3600 * 75 + pmin * 60 * 75 + psec * 75 + pframe - 150;
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leadOutStarts?.Add(trk.SessionNumber, lastSector + 1);
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break;
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}
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case 0xA0 when trk.ADR == 1:
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leadoutTrackType =
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(TocControl)(trk.CONTROL & 0x0D) == TocControl.DataTrack ||
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(TocControl)(trk.CONTROL & 0x0D) == TocControl.DataTrackIncremental
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? TrackType.Data
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: TrackType.Audio;
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break;
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}
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}
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}
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else
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{
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updateStatus?.Invoke(Localization.Core.Cannot_read_RAW_TOC_requesting_processed_one);
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sense = dev.ReadToc(out cmdBuf, out _, false, 0, dev.Timeout, out _);
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TOC.CDTOC? oldToc = TOC.Decode(cmdBuf);
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if((sense || !oldToc.HasValue) && !force)
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{
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stoppingErrorMessage?.Invoke(Localization.Core
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.Could_not_read_TOC_if_you_want_to_continue_use_force_and_will_try_from_LBA_0_to_360000);
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return null;
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}
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if(oldToc.HasValue)
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{
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foreach(TOC.CDTOCTrackDataDescriptor trk in oldToc.Value.TrackDescriptors
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.Where(static trk => trk.ADR is 1 or 4)
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.OrderBy(static t => t.TrackNumber))
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{
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switch(trk.TrackNumber)
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{
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case >= 0x01 and <= 0x63:
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trackList.Add(new Track
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{
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Sequence = trk.TrackNumber,
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Session = 1,
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Type = (TocControl)(trk.CONTROL & 0x0D) == TocControl.DataTrack ||
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(TocControl)(trk.CONTROL & 0x0D) == TocControl.DataTrackIncremental
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? TrackType.Data
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: TrackType.Audio,
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StartSector = trk.TrackStartAddress,
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BytesPerSector = (int)sectorSize,
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RawBytesPerSector = (int)sectorSize
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});
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trackFlags?.Add(trk.TrackNumber, trk.CONTROL);
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break;
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case 0xAA:
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leadoutTrackType =
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(TocControl)(trk.CONTROL & 0x0D) == TocControl.DataTrack ||
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(TocControl)(trk.CONTROL & 0x0D) == TocControl.DataTrackIncremental
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? TrackType.Data
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: TrackType.Audio;
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lastSector = trk.TrackStartAddress - 1;
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break;
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}
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}
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}
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}
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if(trackList.Count == 0)
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{
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updateStatus?.Invoke(Localization.Core.No_tracks_found_adding_a_single_track_from_zero_to_Lead_Out);
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trackList.Add(new Track
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{
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Sequence = 1,
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Session = 1,
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Type = leadoutTrackType,
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StartSector = 0,
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BytesPerSector = (int)sectorSize,
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RawBytesPerSector = (int)sectorSize
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});
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trackFlags?.Add(1, (byte)(leadoutTrackType == TrackType.Audio ? 0 : 4));
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}
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if(lastSector != 0) return trackList.ToArray();
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sense = dev.ReadCapacity16(out cmdBuf, out _, dev.Timeout, out _);
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if(!sense)
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{
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var temp = new byte[8];
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Array.Copy(cmdBuf, 0, temp, 0, 8);
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Array.Reverse(temp);
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lastSector = (long)BitConverter.ToUInt64(temp, 0);
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}
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else
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{
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sense = dev.ReadCapacity(out cmdBuf, out _, dev.Timeout, out _);
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if(!sense) lastSector = (cmdBuf[0] << 24) + (cmdBuf[1] << 16) + (cmdBuf[2] << 8) + cmdBuf[3] & 0xFFFFFFFF;
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}
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if(lastSector > 0) return trackList.ToArray();
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if(!force)
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{
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stoppingErrorMessage?.Invoke(Localization.Core
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.Could_not_find_Lead_Out_if_you_want_to_continue_use_force_option);
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return null;
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}
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updateStatus?.Invoke(Localization.Core.WARNING_Could_not_find_Lead_Out_start_will_try_to_read_up_to);
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lastSector = 360000;
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return trackList.ToArray();
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}
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} |