public void WavOpusSimilarity()
{
string opusFingerprint;
string pcmFingerprint;
// cut out 30 second from the middle of the file
var opusDataSection = new short[330750];
var pcmDataSection = new short[330750];
Buffer.BlockCopy(opusData, 330750, opusDataSection, 0, 330750);
Buffer.BlockCopy(pcmData, 340775, pcmDataSection, 0, 330750); // starts 1 sec later than opus section
// generate fingerprints
var echoPrint = new CodeGen();
opusFingerprint = echoPrint.Generate(opusDataSection);
pcmFingerprint = echoPrint.Generate(pcmDataSection);
byte[] unbase64edOpusFingerprint = Convert.FromBase64String(opusFingerprint.Replace('-', '+').Replace('_', '/'));
string unzippedOpusFingerprint = ZlibStream.UncompressString(unbase64edOpusFingerprint);
byte[] unbase64edPcmFingerprint = Convert.FromBase64String(pcmFingerprint.Replace('-', '+').Replace('_', '/'));
string unzippedPcmFingerprint = ZlibStream.UncompressString(unbase64edPcmFingerprint);
// compute Damereau-Levenshein Distance in absence of actual fingerprint matching algorithm
int similarity = ComputeLevenshteinDistance(unzippedOpusFingerprint, unzippedPcmFingerprint);
float averageDifferencePerCharacter = (float)similarity / (unzippedOpusFingerprint.Length + unzippedPcmFingerprint.Length / 2);
Assert.Less(averageDifferencePerCharacter, 0.4);
Assert.Greater(averageDifferencePerCharacter, 0.001);
}
public void PcmDataFingerprintingGeneratedSomeData()
{
string pcmFingerprint;
var echoPrint = new CodeGen();
pcmFingerprint = echoPrint.Generate(pcmData);
Assert.Greater(pcmFingerprint.Length, 5000);
}
public void OpusDataFingerprintingGeneratedSomeData()
{
string opusFingerprint;
var echoPrint = new CodeGen();
opusFingerprint = echoPrint.Generate(opusData);
Assert.Greater(opusFingerprint.Length, 5000);
}
public static void Compile(string code, string outFileName)
{
//System.IO.DirectoryInfo d = new DirectoryInfo("E:\\Universidad\\4to\\compilacion 2\\testing");
//var files=d.GetFiles("*.cl");
//foreach (var file in files)
//{
var t = Parse(code);
if (t == null)
{
Console.ReadLine();
return;
}
var ast1 = t.GetAST1();
var semanticResults = SemantickCheck((COOLLenguage.SemanticCheck.AST1.Program)ast1);
if (semanticResults.Item1 > 0)
{
Console.WriteLine("Compilation terminated because of semantic errors");
Console.ReadLine();
return;
}
var Context = semanticResults.Item2;
//build ast to generate
var table = MIPSCodeGenerator.SymbolUtils.IdTable;
var astgenerator = (MIPSCodeGenerator.Program)ast1.GetAstCodeGenerator(table);
var inheritance = new InheritanceTree(astgenerator);
var Cg = new CodeGen(astgenerator, inheritance, new StreamWriter(outFileName));
Cg.Generate();
Console.WriteLine("Compilation terminated sucessfully");
Console.ReadLine();
}
public static void Main(string[] args)
{
if (args.Length == 0)
{
var assembly = Assembly.GetExecutingAssembly();
var resourceName = "ConsoleEchoPrintSharp.Resources.NIN-999999-11025.wav";
using (Stream stream = assembly.GetManifestResourceStream(resourceName))
using (BinaryReader reader = new BinaryReader(stream, System.Text.Encoding.ASCII))
{
string chunkId = new string(reader.ReadChars(4));
UInt32 chunkSize = reader.ReadUInt32();
string riffType = new string(reader.ReadChars(4));
string fmtId = new string(reader.ReadChars(4));
UInt32 fmtSize = reader.ReadUInt32();
UInt16 formatTag = reader.ReadUInt16();
UInt16 channels = reader.ReadUInt16();
UInt32 samplesPerSec = reader.ReadUInt32();
UInt32 avgBytesPerSec = reader.ReadUInt32();
UInt16 blockAlign = reader.ReadUInt16();
UInt16 bitsPerSample = reader.ReadUInt16();
string dataID = new string(reader.ReadChars(4));
UInt32 dataSize = reader.ReadUInt32();
if (chunkId != "RIFF" || riffType != "WAVE" || fmtId != "fmt " || dataID != "data" || fmtSize != 16)
{
Console.WriteLine("Malformed WAV header");
return;
}
if (channels != 1 || samplesPerSec != 11025 || avgBytesPerSec != 22050 || blockAlign != 2 || bitsPerSample != 16 || formatTag != 1 || chunkSize < 48)
{
Console.WriteLine("Unexpected WAV format, need 11025 Hz mono 16 bit (little endian integers)");
return;
}
uint numberOfsamples = Math.Min(dataSize / 2, 330750); // max 30 seconds
var pcmData = new Int16[numberOfsamples];
for (int i = 0; i < numberOfsamples; i++)
{
pcmData[i] = reader.ReadInt16();
}
var echoPrint = new CodeGen();
Console.WriteLine(echoPrint.Generate(pcmData));
Console.WriteLine("");
Console.WriteLine("The above is the EchoPrint code for the song '999,999' by Nine Inch Nails.");
Console.WriteLine("To generate codes for your own mp3s or wavs add them as parameters to ");
Console.WriteLine("ConsoleEchoPrintSharp.exe in a command line or in the debug settings");
Console.WriteLine("or execution setting of the ConsoleEchoPrintSharp project.");
Console.WriteLine("(mp3s only work on Windows, because NAudio depends on Msacm32.dll.)");
}
}
else
{
foreach (string audioFile in args)
{
if (audioFile.Length >= 4 && audioFile.Substring(audioFile.Length - 4).Equals(".wav", StringComparison.InvariantCultureIgnoreCase))
{
using (WaveFileReader wav = new WaveFileReader(audioFile))
{
using (WaveStream pcm = WaveFormatConversionStream.CreatePcmStream(wav))
{
using (BinaryReader reader = new BinaryReader(pcm, System.Text.Encoding.ASCII))
{
HandleFile(pcm, audioFile);
}
}
}
}
else if (audioFile.Length >= 4 && audioFile.Substring(audioFile.Length - 4).Equals(".mp3", StringComparison.InvariantCultureIgnoreCase))
{
try
{
using (Mp3FileReader mp3 = new Mp3FileReader(audioFile))
{
using (WaveStream pcm = WaveFormatConversionStream.CreatePcmStream(mp3))
{
HandleFile(pcm, audioFile);
}
}
}
catch (DllNotFoundException e)
{
Console.WriteLine("Sorry, a necessary dll is not found on your system. Here come the details:\r\n\r\n{0}", e);
}
}
public void CodeGen(String filename)
{
cg = new CodeGen(p.e, p.Functions, p.GlobalVars);
cg.Generate(filename);
}
public void CodeGen(String filename)
{
cg = new CodeGen(p.e, p.Functions, p.GlobalVars);
cg.Generate(filename);
}
