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Calculate optimal read size.

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This commit is contained in:
Natalia Portillo
2019-12-14 21:33:00 +00:00
parent 7837c9b393
commit 06465f10c6
1 changed files with 48 additions and 49 deletions
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97
DiscImageChef.Core/Devices/Dumping/CompactDisc.cs
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@@ -106,10 +106,11 @@ namespace DiscImageChef.Core.Devices.Dumping
ExtentsULong extents = null;
DateTime timeSpeedStart = DateTime.UtcNow;
ulong sectorSpeedStart = 0;
double totalDuration = 0;
double currentSpeed = 0;
double maxSpeed = double.MinValue;
double minSpeed = double.MaxValue;
double totalDuration = 0;
double currentSpeed = 0;
double maxSpeed = double.MinValue;
double minSpeed = double.MaxValue;
uint blocksToRead = 64;
Dictionary<MediaTagType, byte[]> mediaTags = new Dictionary<MediaTagType, byte[]>(); // Media tags
@@ -1068,49 +1069,6 @@ namespace DiscImageChef.Core.Devices.Dumping
firstTrackPregapMs.Close();
}
}
/// <summary>Dumps a compact disc</summary>
/// <param name="dskType">Disc type as detected in MMC layer</param>
internal void CompactDiscOld(ref MediaType dskType)
{
ulong blocks = 0;
Track[] tracks = new Track[0];
List<Track> trackList = new List<Track>();
long lastSector = 0;
Dictionary<byte, byte> trackFlags = new Dictionary<byte, byte>();
TrackType firstTrackType = TrackType.Audio;
Dictionary<int, long> leadOutStarts = new Dictionary<int, long>();
uint subSize = 0;
const uint SECTOR_SIZE = 2352;
uint blockSize = SECTOR_SIZE + subSize;
DateTime start;
DateTime end;
bool readcd = false;
bool read6 = false, read10 = false, read12 = false, read16 = false;
bool sense = false;
FullTOC.CDFullTOC? toc = null;
double totalDuration = 0;
double currentSpeed = 0;
double maxSpeed = double.MinValue;
double minSpeed = double.MaxValue;
uint blocksToRead = 64;
Dictionary<MediaTagType, byte[]> mediaTags = new Dictionary<MediaTagType, byte[]>();
byte[] cmdBuf = null;
byte[] senseBuf = null;
byte[] tmpBuf;
MmcSubchannel supportedSubchannel = MmcSubchannel.Raw;
TrackSubchannelType subType = TrackSubchannelType.None; // Track subchannel type
bool supportsLongSectors = true;
int sessions = 1;
int firstTrackLastSession = 0;
DumpHardwareType currentTry = null;
ExtentsULong extents = null;
DateTime timeSpeedStart = DateTime.UtcNow;
ulong sectorSpeedStart = 0;
// Try how many blocks are readable at once
while(true)
@@ -1165,9 +1123,50 @@ namespace DiscImageChef.Core.Devices.Dumping
{
dumpLog.WriteLine("Device error {0} trying to guess ideal transfer length.", dev.LastError);
StoppingErrorMessage?.Invoke($"Device error {dev.LastError} trying to guess ideal transfer length.");
return;
}
}
/// <summary>Dumps a compact disc</summary>
/// <param name="dskType">Disc type as detected in MMC layer</param>
internal void CompactDiscOld(ref MediaType dskType)
{
ulong blocks = 0;
Track[] tracks = new Track[0];
List<Track> trackList = new List<Track>();
long lastSector = 0;
Dictionary<byte, byte> trackFlags = new Dictionary<byte, byte>();
TrackType firstTrackType = TrackType.Audio;
Dictionary<int, long> leadOutStarts = new Dictionary<int, long>();
uint subSize = 0;
const uint SECTOR_SIZE = 2352;
uint blockSize = SECTOR_SIZE + subSize;
DateTime start;
DateTime end;
bool readcd = false;
bool read6 = false, read10 = false, read12 = false, read16 = false;
bool sense = false;
FullTOC.CDFullTOC? toc = null;
double totalDuration = 0;
double currentSpeed = 0;
double maxSpeed = double.MinValue;
double minSpeed = double.MaxValue;
uint blocksToRead = 64;
Dictionary<MediaTagType, byte[]> mediaTags = new Dictionary<MediaTagType, byte[]>();
byte[] cmdBuf = null;
byte[] senseBuf = null;
byte[] tmpBuf;
MmcSubchannel supportedSubchannel = MmcSubchannel.Raw;
TrackSubchannelType subType = TrackSubchannelType.None; // Track subchannel type
bool supportsLongSectors = true;
int sessions = 1;
int firstTrackLastSession = 0;
DumpHardwareType currentTry = null;
ExtentsULong extents = null;
DateTime timeSpeedStart = DateTime.UtcNow;
ulong sectorSpeedStart = 0;
dumpLog.WriteLine("Reading {0} sectors at a time.", blocksToRead);
dumpLog.WriteLine("Device reports {0} blocks ({1} bytes).", blocks, blocks * blockSize);