public void DecompressFiles(string decompressionDataFilePath)
{
LoadCompressionData(decompressionDataFilePath);
long location = 0;
for (var i = 0; i < _compressionData.Files.Count; i++)
{
long offset = 0;
for (var j = 0; j < i; j++)
{
offset += _compressionData.Files[j].Item2;
}
var length = _compressionData.Files[i].Item3;
var fileStreamReader = new FileStream(_compressionData.FileName, FileMode.Open, FileAccess.Read);
using (var fileStreamWriter = new FileStream(FullPath(_compressionData.Files[i].Item1), FileMode.Create, FileAccess.Write))
using (var rleFileStreamReader = new RleStreamReader(_sequenceMin, fileStreamReader))
{
fileStreamReader.Position = offset;
long offsetPosition = 0;
int b;
while ((b = rleFileStreamReader.ReadByte()) >= 0)
{
fileStreamWriter.WriteByte((byte)b);
offsetPosition++;
if (offsetPosition > length - 1)
{
break;
}
}
}
}
}
public void ReadAllBytes_SequenceMin3_Decoding()
{
var rleStreamRead = new RleStreamReader(3, new MemoryStream(new byte[] { 123, 34, 127, 127, 2, 12, 13, 13, 13, 5, 33 }));
var bytes = rleStreamRead.ReadAllBytes();
CollectionAssert.AreEqual(new byte[] { 123, 34, 127, 127, 2, 12, 13, 13, 13, 13, 13, 13, 13, 13, 33 }, bytes);
}
public void ReadAllBytes_TwoTheSameBytesAndSequance2AndOneOther()
{
var rleStreamRead = new RleStreamReader(2, new MemoryStream(new byte[] { 127, 127, 2, 12 }));
var bytes = rleStreamRead.ReadAllBytes();
CollectionAssert.AreEqual(new byte[] { 127, 127, 127, 127, 12 }, bytes);
}
public void Read_OneByte()
{
var bytes = new byte[] { 127 };
var rleStreamRead = new RleStreamReader(2, new MemoryStream(bytes));
var b = rleStreamRead.ReadByte();
Assert.AreEqual(bytes[0], b);
}
public void Read_TwoTheSameBytesAndSequance0()
{
var bytes = new byte[] { 127, 127, 0 };
var rleStreamRead = new RleStreamReader(2, new MemoryStream(bytes));
var b1 = rleStreamRead.ReadByte();
var b2 = rleStreamRead.ReadByte();
Assert.AreEqual(bytes[0], b1);
Assert.AreEqual(bytes[0], b2);
}
public void Read_TwoTheDifferentBytes_EndStreamAfter()
{
var bytes = new byte[] { 127, 100 };
var rleStreamRead = new RleStreamReader(2, new MemoryStream(bytes));
rleStreamRead.ReadByte();
rleStreamRead.ReadByte();
var b = rleStreamRead.ReadByte();
Assert.AreEqual(-1, b);
}
public void Read_TwoTheDifferentBytes()
{
var bytes = new byte[] { 127, 100 };
var rleStreamRead = new RleStreamReader(2, new MemoryStream(bytes));
var b1 = rleStreamRead.ReadByte();
var b2 = rleStreamRead.ReadByte();
Assert.AreEqual(bytes[0], b1);
Assert.AreEqual(bytes[1], b2);
}
public void Read_TwoTheSameBytesAndSequance0_EndStreamAfter()
{
var bytes = new byte[] { 127, 127, 0 };
var rleStreamRead = new RleStreamReader(2, new MemoryStream(bytes));
rleStreamRead.ReadByte();
rleStreamRead.ReadByte();
var b = rleStreamRead.ReadByte();
Assert.AreEqual(-1, b);
}
