private AcoustID.FingerprintAcoustID MakeAcoustIDFinger(string key, string filename)
{
// resample to 11025Hz
IAudioDecoder decoder = new BassDecoder();
try
{
decoder.Load(filename);
ChromaContext context = new ChromaContext();
context.Start(decoder.SampleRate, decoder.Channels);
decoder.Decode(context.Consumer, 120);
if (context.Finish())
{
FingerprintAcoustID fingerprint = new FingerprintAcoustID();
fingerprint.Reference = key;
fingerprint.DurationInMS = (long)decoder.Duration * 1000;
fingerprint.SignatureInt32 = context.GetRawFingerprint();
return(fingerprint);
}
}
catch (Exception e)
{
// Probleem waarschijnlijk met file.
Console.Error.WriteLine(e.ToString());
}
finally
{
decoder.Dispose();
}
return(null);
}
public void Test2SilenceRawFp()
{
short[] zeroes = new short[1024];
ChromaContext ctx = new ChromaContext(ChromaprintAlgorithm.TEST2);
ctx.Start(44100, 1);
for (int i = 0; i < 130; i++)
{
ctx.Feed(zeroes, 1024);
}
ctx.Finish();
int[] fp = ctx.GetRawFingerprint();
Assert.AreEqual(3, fp.Length);
Assert.AreEqual(627964279, fp[0]);
Assert.AreEqual(627964279, fp[1]);
Assert.AreEqual(627964279, fp[2]);
}
public void Test2SilenceRawFp()
{
short[] zeroes = new short[1024];
ChromaContext ctx = new ChromaContext(ChromaprintAlgorithm.TEST2);
ctx.Start(44100, 1);
for (int i = 0; i < 130; i++)
{
ctx.Feed(zeroes, 1024);
}
ctx.Finish();
int[] fp = ctx.GetRawFingerprint();
Assert.AreEqual(3, fp.Length);
Assert.AreEqual(627964279, fp[0]);
Assert.AreEqual(627964279, fp[1]);
Assert.AreEqual(627964279, fp[2]);
}