diff --git a/Form1.Designer.cs b/Form1.Designer.cs new file mode 100644 index 0000000..a7f8ce9 --- /dev/null +++ b/Form1.Designer.cs @@ -0,0 +1,109 @@ +namespace Magnetic_Card_Reader +{ + partial class Form1 + { + /// + /// Erforderliche Designervariable. + /// + private System.ComponentModel.IContainer components = null; + + /// + /// Verwendete Ressourcen bereinigen. + /// + /// True, wenn verwaltete Ressourcen gelöscht werden sollen; andernfalls False. + protected override void Dispose(bool disposing) + { + if (disposing && (components != null)) + { + components.Dispose(); + } + base.Dispose(disposing); + } + + #region Vom Windows Form-Designer generierter Code + + /// + /// Erforderliche Methode für die Designerunterstützung. + /// Der Inhalt der Methode darf nicht mit dem Code-Editor geändert werden. + /// + private void InitializeComponent() + { + this.textBox1 = new System.Windows.Forms.TextBox(); + this.textBox2 = new System.Windows.Forms.TextBox(); + this.button1 = new System.Windows.Forms.Button(); + this.label1 = new System.Windows.Forms.Label(); + this.label2 = new System.Windows.Forms.Label(); + this.SuspendLayout(); + // + // textBox1 + // + this.textBox1.Location = new System.Drawing.Point(12, 25); + this.textBox1.Name = "textBox1"; + this.textBox1.Size = new System.Drawing.Size(437, 20); + this.textBox1.TabIndex = 1; + this.textBox1.Text = "..\\\\..\\\\..\\\\test-recording.wav"; + // + // textBox2 + // + this.textBox2.Location = new System.Drawing.Point(12, 77); + this.textBox2.Name = "textBox2"; + this.textBox2.ReadOnly = true; + this.textBox2.Size = new System.Drawing.Size(554, 20); + this.textBox2.TabIndex = 2; + // + // button1 + // + this.button1.Location = new System.Drawing.Point(455, 23); + this.button1.Name = "button1"; + this.button1.Size = new System.Drawing.Size(111, 23); + this.button1.TabIndex = 3; + this.button1.Text = "Read data"; + this.button1.UseVisualStyleBackColor = true; + this.button1.Click += new System.EventHandler(this.button1_Click); + // + // label1 + // + this.label1.AutoSize = true; + this.label1.Location = new System.Drawing.Point(12, 9); + this.label1.Name = "label1"; + this.label1.Size = new System.Drawing.Size(156, 13); + this.label1.TabIndex = 4; + this.label1.Text = "Recorded track 2 wav-file path:"; + // + // label2 + // + this.label2.AutoSize = true; + this.label2.Location = new System.Drawing.Point(12, 61); + this.label2.Name = "label2"; + this.label2.Size = new System.Drawing.Size(68, 13); + this.label2.TabIndex = 4; + this.label2.Text = "Track2-data:"; + // + // Form1 + // + this.AutoScaleDimensions = new System.Drawing.SizeF(6F, 13F); + this.AutoScaleMode = System.Windows.Forms.AutoScaleMode.Font; + this.ClientSize = new System.Drawing.Size(578, 123); + this.Controls.Add(this.label2); + this.Controls.Add(this.label1); + this.Controls.Add(this.button1); + this.Controls.Add(this.textBox2); + this.Controls.Add(this.textBox1); + this.Name = "Form1"; + this.Text = "Form1"; + this.ResumeLayout(false); + this.PerformLayout(); + + } + + #endregion + + private System.Windows.Forms.TextBox textBox1; + private System.Windows.Forms.TextBox textBox2; + private System.Windows.Forms.Button button1; + private System.Windows.Forms.Label label1; + private System.Windows.Forms.Label label2; + + } +} + diff --git a/Form1.cs b/Form1.cs new file mode 100644 index 0000000..ae769ec --- /dev/null +++ b/Form1.cs @@ -0,0 +1,59 @@ +using System; +using System.Collections.Generic; +using System.ComponentModel; +using System.Data; +using System.Drawing; +using System.Linq; +using System.Text; +using System.Windows.Forms; +using System.IO; +using WaveReader; + +namespace Magnetic_Card_Reader +{ + public partial class Form1 : Form + { + public Form1() + { + InitializeComponent(); + } + + private void button1_Click(object sender, EventArgs e) + { + int yVal; + int lastyVal = 0; + int currSide = 1; + bool currStateHi = false; + + MagneticCardReader mcReader = new MagneticCardReader(); + Stream inpFile = new StreamReader(textBox1.Text).BaseStream; + WaveData wavData = new WaveData(inpFile); + + for (int i = 0; i < wavData.NumberOfFrames; i++) + { + yVal = wavData.Samples[0][i]; + if (yVal > 0x7FFF) yVal -= 0xFFFF; + + //Call addNewSignalState on zero crossing: + if (((lastyVal < yVal && currSide < 0) || (lastyVal > yVal && currSide > 0)) && (System.Math.Abs(yVal) > 0xFF)) + { + currSide = 0; + currStateHi = (yVal > 0xFF); + + mcReader.addNewSignalState(i, Convert.ToInt32(currStateHi)); + } + + if (lastyVal * yVal < 1) + { + currSide = Convert.ToInt32(!currStateHi) * 2 - 1; + } + + lastyVal = yVal; + } + + textBox2.Text = mcReader.getDataString(); + inpFile.Close(); + } + + } +} diff --git a/Form1.resx b/Form1.resx new file mode 100644 index 0000000..29dcb1b --- /dev/null +++ b/Form1.resx @@ -0,0 +1,120 @@ + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + text/microsoft-resx + + + 2.0 + + + System.Resources.ResXResourceReader, System.Windows.Forms, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089 + + + System.Resources.ResXResourceWriter, System.Windows.Forms, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089 + + \ No newline at end of file diff --git a/Magnetic Card Reader.csproj b/Magnetic Card Reader.csproj new file mode 100644 index 0000000..9929183 --- /dev/null +++ b/Magnetic Card Reader.csproj @@ -0,0 +1,89 @@ + + + + Debug + x86 + 8.0.30703 + 2.0 + {F3F1590A-D5C4-4C61-AC0E-B5155F6F1A61} + WinExe + Properties + Magnetic_Card_Reader + Magnetic Card Reader + v4.0 + Client + 512 + + + x86 + true + full + false + bin\Debug\ + DEBUG;TRACE + prompt + 4 + + + x86 + pdbonly + true + bin\Release\ + TRACE + prompt + 4 + + + + + + + + + + + + + + + + + Form + + + Form1.cs + + + + + + Form1.cs + + + ResXFileCodeGenerator + Resources.Designer.cs + Designer + + + True + Resources.resx + + + SettingsSingleFileGenerator + Settings.Designer.cs + + + True + Settings.settings + True + + + + + \ No newline at end of file diff --git a/MagneticCardReader.cs b/MagneticCardReader.cs new file mode 100644 index 0000000..5dcbfe5 --- /dev/null +++ b/MagneticCardReader.cs @@ -0,0 +1,110 @@ +using System; +using System.Collections.Generic; +using System.Linq; +using System.Text; + +namespace Magnetic_Card_Reader +{ + class MagneticCardReader + { + int lastTimeStamp = 0; + double filteredInterval = 0; + int dataPointIndex = 0; + byte[] decodedData = new byte[1024]; + int currBitPos = 0; + int lastPuls = 0; + int startCountDown = 0; + + + + private int getParity(byte byteValue) + { + int A = byteValue; + + A ^= A >> 4; + A ^= A >> 2; + A ^= A >> 1; + + return A & 1; + } + + + public string getDataString() + { + /*char[] charTableTrack1 = {' ', '!', '"', '#', '$', '%', '&', '´', '(', ')', '*', '+', ',', '-', '.', '/', + '0', '1', '2', '3', '4', '5', '6', '7', '8', '9', ':', ';', '<', '=', '>', '?', + '@', 'A', 'B', 'C', 'D', 'E', 'F', 'G', 'H', 'I', 'J', 'K', 'L', 'M', 'N', 'O', + 'P', 'Q', 'R', 'S', 'T', 'U', 'V', 'W', 'X', 'Y', 'Z', '[', '\\', ']', '^', '_'};*/ + + char[] charTableTrack2 = {'0', '1', '2', '3', '4', '5', '6', '7', '8', '9', ':', ';', '<', '=', '>', '?'}; + + char[] charsData = new char[64]; + + for (int i = 0; i < 64; i++ ) + { + if (getParity(decodedData[i])==0) + { + charsData[i] = '_'; + } + else + { + charsData[i] = charTableTrack2[(decodedData[i] % 16)]; + } + } + + string outPstring = new String(charsData); + + return outPstring; + } + + public void addNewSignalState(int timeStamp, int newState) + { + int shortPuls = 0; + int timeInterv = (timeStamp - lastTimeStamp); + + if (dataPointIndex < 18) + { + if (lastTimeStamp > 0) + { + filteredInterval = filteredInterval + (double)timeInterv / 16; + } + } + else + { + if (timeInterv < filteredInterval * 3 / 4) + { + shortPuls = 1; + } + else + { + shortPuls = 0; + } + + filteredInterval = filteredInterval * 0.9 + (double)(timeInterv * (shortPuls + 1)) * 0.1; + + if ((lastPuls & shortPuls) == 1) + { + startCountDown--; + if (startCountDown < 0) + { + decodedData[currBitPos / 5] |= (byte)(1 << (currBitPos % 5)); + currBitPos++; + shortPuls = 0; + } + + } + else if (shortPuls == 0) + { + if (startCountDown < 0) + { + currBitPos++; + } + } + } + + lastPuls = shortPuls; + lastTimeStamp = timeStamp; + dataPointIndex++; + } + } +} diff --git a/Program.cs b/Program.cs new file mode 100644 index 0000000..9101b67 --- /dev/null +++ b/Program.cs @@ -0,0 +1,21 @@ +using System; +using System.Collections.Generic; +using System.Linq; +using System.Windows.Forms; + +namespace Magnetic_Card_Reader +{ + static class Program + { + /// + /// Der Haupteinstiegspunkt für die Anwendung. + /// + [STAThread] + static void Main() + { + Application.EnableVisualStyles(); + Application.SetCompatibleTextRenderingDefault(false); + Application.Run(new Form1()); + } + } +} diff --git a/Properties/AssemblyInfo.cs b/Properties/AssemblyInfo.cs new file mode 100644 index 0000000..0b10e78 --- /dev/null +++ b/Properties/AssemblyInfo.cs @@ -0,0 +1,36 @@ +using System.Reflection; +using System.Runtime.CompilerServices; +using System.Runtime.InteropServices; + +// Allgemeine Informationen über eine Assembly werden über die folgenden +// Attribute gesteuert. Ändern Sie diese Attributwerte, um die Informationen zu ändern, +// die mit einer Assembly verknüpft sind. +[assembly: AssemblyTitle("Magnetic Card Reader")] +[assembly: AssemblyDescription("")] +[assembly: AssemblyConfiguration("")] +[assembly: AssemblyCompany("Microsoft")] +[assembly: AssemblyProduct("Magnetic Card Reader")] +[assembly: AssemblyCopyright("Copyright © Microsoft 2010")] +[assembly: AssemblyTrademark("")] +[assembly: AssemblyCulture("")] + +// Durch Festlegen von ComVisible auf "false" werden die Typen in dieser Assembly unsichtbar +// für COM-Komponenten. Wenn Sie auf einen Typ in dieser Assembly von +// COM zugreifen müssen, legen Sie das ComVisible-Attribut für diesen Typ auf "true" fest. +[assembly: ComVisible(false)] + +// Die folgende GUID bestimmt die ID der Typbibliothek, wenn dieses Projekt für COM verfügbar gemacht wird +[assembly: Guid("270fc42c-8d26-4d02-832f-cbcddd701357")] + +// Versionsinformationen für eine Assembly bestehen aus den folgenden vier Werten: +// +// Hauptversion +// Nebenversion +// Buildnummer +// Revision +// +// Sie können alle Werte angeben oder die standardmäßigen Build- und Revisionsnummern +// übernehmen, indem Sie "*" eingeben: +// [assembly: AssemblyVersion("1.0.*")] +[assembly: AssemblyVersion("1.0.0.0")] +[assembly: AssemblyFileVersion("1.0.0.0")] diff --git a/Properties/Resources.Designer.cs b/Properties/Resources.Designer.cs new file mode 100644 index 0000000..821cb7b --- /dev/null +++ b/Properties/Resources.Designer.cs @@ -0,0 +1,71 @@ +//------------------------------------------------------------------------------ +// +// Dieser Code wurde von einem Tool generiert. +// Laufzeitversion:4.0.30319.1 +// +// Änderungen an dieser Datei können fehlerhaftes Verhalten verursachen und gehen verloren, wenn +// der Code neu generiert wird. +// +//------------------------------------------------------------------------------ + +namespace Magnetic_Card_Reader.Properties +{ + + + /// + /// Eine stark typisierte Ressourcenklasse zum Suchen von lokalisierten Zeichenfolgen usw. + /// + // Diese Klasse wurde von der StronglyTypedResourceBuilder-Klasse + // über ein Tool wie ResGen oder Visual Studio automatisch generiert. + // Um einen Member hinzuzufügen oder zu entfernen, bearbeiten Sie die .ResX-Datei und führen dann ResGen + // mit der Option /str erneut aus, oder erstellen Sie Ihr VS-Projekt neu. + [global::System.CodeDom.Compiler.GeneratedCodeAttribute("System.Resources.Tools.StronglyTypedResourceBuilder", "4.0.0.0")] + [global::System.Diagnostics.DebuggerNonUserCodeAttribute()] + [global::System.Runtime.CompilerServices.CompilerGeneratedAttribute()] + internal class Resources + { + + private static global::System.Resources.ResourceManager resourceMan; + + private static global::System.Globalization.CultureInfo resourceCulture; + + [global::System.Diagnostics.CodeAnalysis.SuppressMessageAttribute("Microsoft.Performance", "CA1811:AvoidUncalledPrivateCode")] + internal Resources() + { + } + + /// + /// Gibt die zwischengespeicherte ResourceManager-Instanz zurück, die von dieser Klasse verwendet wird. + /// + [global::System.ComponentModel.EditorBrowsableAttribute(global::System.ComponentModel.EditorBrowsableState.Advanced)] + internal static global::System.Resources.ResourceManager ResourceManager + { + get + { + if ((resourceMan == null)) + { + global::System.Resources.ResourceManager temp = new global::System.Resources.ResourceManager("Magnetic_Card_Reader.Properties.Resources", typeof(Resources).Assembly); + resourceMan = temp; + } + return resourceMan; + } + } + + /// + /// Überschreibt die CurrentUICulture-Eigenschaft des aktuellen Threads für alle + /// Ressourcenlookups, die diese stark typisierte Ressourcenklasse verwenden. + /// + [global::System.ComponentModel.EditorBrowsableAttribute(global::System.ComponentModel.EditorBrowsableState.Advanced)] + internal static global::System.Globalization.CultureInfo Culture + { + get + { + return resourceCulture; + } + set + { + resourceCulture = value; + } + } + } +} diff --git a/Properties/Resources.resx b/Properties/Resources.resx new file mode 100644 index 0000000..ffecec8 --- /dev/null +++ b/Properties/Resources.resx @@ -0,0 +1,117 @@ + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + text/microsoft-resx + + + 2.0 + + + System.Resources.ResXResourceReader, System.Windows.Forms, Version=2.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089 + + + System.Resources.ResXResourceWriter, System.Windows.Forms, Version=2.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089 + + \ No newline at end of file diff --git a/Properties/Settings.Designer.cs b/Properties/Settings.Designer.cs new file mode 100644 index 0000000..f564b56 --- /dev/null +++ b/Properties/Settings.Designer.cs @@ -0,0 +1,30 @@ +//------------------------------------------------------------------------------ +// +// This code was generated by a tool. +// Runtime Version:4.0.30319.1 +// +// Changes to this file may cause incorrect behavior and will be lost if +// the code is regenerated. +// +//------------------------------------------------------------------------------ + +namespace Magnetic_Card_Reader.Properties +{ + + + [global::System.Runtime.CompilerServices.CompilerGeneratedAttribute()] + [global::System.CodeDom.Compiler.GeneratedCodeAttribute("Microsoft.VisualStudio.Editors.SettingsDesigner.SettingsSingleFileGenerator", "10.0.0.0")] + internal sealed partial class Settings : global::System.Configuration.ApplicationSettingsBase + { + + private static Settings defaultInstance = ((Settings)(global::System.Configuration.ApplicationSettingsBase.Synchronized(new Settings()))); + + public static Settings Default + { + get + { + return defaultInstance; + } + } + } +} diff --git a/Properties/Settings.settings b/Properties/Settings.settings new file mode 100644 index 0000000..abf36c5 --- /dev/null +++ b/Properties/Settings.settings @@ -0,0 +1,7 @@ + + + + + + + diff --git a/WaveReader.cs b/WaveReader.cs new file mode 100644 index 0000000..c1cd3a0 --- /dev/null +++ b/WaveReader.cs @@ -0,0 +1,93 @@ +//A simple C# .NET wave reader library from http://code.google.com/p/dot-net-wave-reader/ + +using System; +using System.Collections.Generic; +using System.Text; +using System.IO; + +namespace WaveReader +{ + public class WaveData + { + private static readonly short BitsPerByte = 8; + private static readonly short MaxBits = 16; + public short[][] Samples { get; private set; } + public short CompressionCode { get; private set; } + public short NumberOfChannels { get; private set; } + public int SampleRate { get; private set; } + public int BytesPerSecond { get; private set; } + public short BitsPerSample { get; private set; } + public short BlockAlign { get; private set; } + public int NumberOfFrames { get; private set; } + + /// + /// Reads a Wave file from the input stream, but doesn't close the stream + /// + /// Input WAVE file stream + public WaveData(Stream stream) + { + using (BinaryReader binaryReader = new BinaryReader(stream)) + { + binaryReader.ReadChars(4); //"RIFF" + int length = binaryReader.ReadInt32(); + binaryReader.ReadChars(4); //"WAVE" + string chunkName = new string(binaryReader.ReadChars(4)); //"fmt " + int chunkLength = binaryReader.ReadInt32(); + this.CompressionCode = binaryReader.ReadInt16(); //1 for PCM/uncompressed + this.NumberOfChannels = binaryReader.ReadInt16(); + this.SampleRate = binaryReader.ReadInt32(); + this.BytesPerSecond = binaryReader.ReadInt32(); + this.BlockAlign = binaryReader.ReadInt16(); + this.BitsPerSample = binaryReader.ReadInt16(); + if ((MaxBits % BitsPerSample) != 0) + { + throw new Exception("The input stream uses an unhandled SignificantBitsPerSample parameter"); + } + binaryReader.ReadChars(chunkLength - 16); + chunkName = new string(binaryReader.ReadChars(4)); + try + { + while (chunkName.ToLower() != "data") + { + binaryReader.ReadChars(binaryReader.ReadInt32()); + chunkName = new string(binaryReader.ReadChars(4)); + } + } + catch + { + throw new Exception("Input stream misses the data chunk"); + } + chunkLength = binaryReader.ReadInt32(); + this.NumberOfFrames = (chunkLength * BitsPerByte) / (this.NumberOfChannels * this.BitsPerSample); + this.Samples = SplitChannels(binaryReader, this.NumberOfChannels, this.BitsPerSample, this.NumberOfFrames); + } + } + + public static short[][] SplitChannels(BinaryReader binaryReader, short numberOfChannels, short bitsPerSample, int numberOfFrames) + { + var samples = new short[numberOfChannels][]; + for (int channel = 0; channel < numberOfChannels; channel++) + { + samples[channel] = new short[numberOfFrames]; + } + short readedBits = 0; + short numberOfReadedBits = 0; + for (int frame = 0; frame < numberOfFrames; frame++) + { + for (int channel = 0; channel < numberOfChannels; channel++) + { + while (numberOfReadedBits < bitsPerSample) + { + readedBits |= (short)(Convert.ToInt16(binaryReader.ReadByte()) << numberOfReadedBits); + numberOfReadedBits += BitsPerByte; + } + var numberOfExcessBits = numberOfReadedBits - bitsPerSample; + samples[channel][frame] = (short)(readedBits >> numberOfExcessBits); + readedBits %= (short)(1 << numberOfExcessBits); + numberOfReadedBits = (short)numberOfExcessBits; + } + } + return samples; + } + } +} diff --git a/bin/Magnetic Card Reader.exe b/bin/Magnetic Card Reader.exe new file mode 100644 index 0000000..9d15127 Binary files /dev/null and b/bin/Magnetic Card Reader.exe differ diff --git a/bin/test-recording.wav b/bin/test-recording.wav new file mode 100644 index 0000000..89836f4 Binary files /dev/null and b/bin/test-recording.wav differ