public Statistics Encode(string inputFilePath, string outputFilePath, HuffmanEncodeModel huffmanEncodeModel)
{
Statistics statiscs;
IHuffmanCoderInterface huffmanCoderInterface;
IStatisticsBuilder statisticsBuilder = new StatisticsBuilder();
using (IInputReader input = new InputReader(inputFilePath))
{
ICoderOutputWriter output = new CoderOutputWriter(new ByteCreator(), new HeaderCreator());
if (huffmanEncodeModel == HuffmanEncodeModel.Standard)
{
huffmanCoderInterface = new StandardHuffmanCoderInterface(input, output);
}
else if (huffmanEncodeModel == HuffmanEncodeModel.Block)
{
huffmanCoderInterface = new PairHuffmanCoderInterface(input, output);
}
else
{
huffmanCoderInterface = new MarkowHuffmanCoderInterface(input, output);
}
huffmanCoderInterface.Encode();
System.IO.File.WriteAllBytes(outputFilePath, output.FileBytes);
statiscs = statisticsBuilder.BuildStatistics(output.SymbolMap, output.Header, input.Size, output.Size);
if (huffmanEncodeModel == HuffmanEncodeModel.Standard)
{
IHistogramBuilder histogramBuilder = new HistogramBuilder();
histogramBuilder.BuildHistogram(output.SymbolMap, outputFilePath);
}
}
return(statiscs);
}
public void StandardCoderEncodeInput()
{
//given
byte[] input = new byte[] { (byte)'A', (byte)'B', (byte)'C', (byte)'A', (byte)'B', (byte)'D', (byte)'A', (byte)'B', (byte)'C', (byte)'A' };
MockInputReader inputReader = new MockInputReader(input);
MockCoderOutputWriter outputWriter = new MockCoderOutputWriter();
//when
StandardHuffmanCoderInterface standardHuffmanCoderInterface = new StandardHuffmanCoderInterface(inputReader, outputWriter);
standardHuffmanCoderInterface.Encode();
//then
outputWriter.AssertEquals(new List <int>()
{
0, 1, 0, 1, 1, 1, 0, 1, 0, 1, 1, 0, 0, 1, 0, 1, 1, 1, 0
});
}
