/// <summary>
/// Test the subfinger fingerprints, by trying to find a 15 second audio in 3 different bitrates.
///
/// Needed are:
/// 1. MySQL database
/// 2. CreateAudioFingerprint (Fills the MySQL database with fingerprints)
/// 3. CreateInversedFingerprintIndex (Create a lucene reversed search index, needed to identity a fingerprint)
/// 4. This program to find a 15 second fragment of audio
/// </summary>
public void RunSubFingerTest()
{
Console.WriteLine("SubFinger test.");
if (!System.IO.Directory.Exists(subFingerLookupPath))
{
Console.WriteLine("SubFinger path not found.");
return;
}
Console.WriteLine("Opening index. With larges indexes this can take a while.");
IndexSearcher indexSubFingerLookup = new IndexSearcher(IndexReader.Open(FSDirectory.Open(new System.IO.DirectoryInfo(subFingerLookupPath)), true));
indexSubFingerLookup.Similarity = new CDR.Indexer.DefaultSimilarityExtended2();
Console.WriteLine("Ready opening index.");
SubFingerprintQuery query = new SubFingerprintQuery(indexSubFingerLookup);
FingerprintSignature fsQuery = null;
Resultset answer = null;
fsQuery = CreateSubFingerprintFromAudio(@"..\..\..\Audio\Samples\JK147510-0002-224Sample-45s-60s.mp3");
answer = query.MatchAudioFingerprint(fsQuery);
if (!retrieveMetadataFromMuziekweb)
{
ThrowIfInvalidAnswer(answer, "A5D062DE");
}
PrintAnswer(answer);
Console.WriteLine();
fsQuery = CreateSubFingerprintFromAudio(@"..\..\..\Audio\Samples\JK147510-0002-128Sample-45s-60s.mp3");
answer = query.MatchAudioFingerprint(fsQuery);
if (!retrieveMetadataFromMuziekweb)
{
ThrowIfInvalidAnswer(answer, "A5D062DE");
}
PrintAnswer(answer);
Console.WriteLine();
fsQuery = CreateSubFingerprintFromAudio(@"..\..\..\Audio\Samples\JK147510-0002-64Sample-45s-60s.mp3");
answer = query.MatchAudioFingerprint(fsQuery);
if (!retrieveMetadataFromMuziekweb)
{
ThrowIfInvalidAnswer(answer, "A5D062DE");
}
PrintAnswer(answer);
Console.WriteLine();
}
public Message FingerprintRecognize(Stream stream)
{
string errorMessage;
if (!UserAccountManager.HasAccess(UserAccountManager.CurrentAccessGroup, out errorMessage, true))
{
return(ServiceHelper.SendErrorMessage(ResultErrorCode.AuthorizationError, errorMessage));
}
UserAccountManager.GlobalNumberOfRequestsInc();
XElement xResult = null;
try
{
QueryString qs = new QueryString(stream);
string fingerprint = qs["Fingerprint"];
string reliabilty = qs["Reliabilities"];
using (FingerprintSignature fsQuery = new FingerprintSignature("UNKNOWN", 0, System.Convert.FromBase64String(fingerprint), 0, true))
{
fsQuery.Reliabilities = System.Convert.FromBase64String(reliabilty);
LuceneIndex subFingerIndex = LuceneIndexes.IndexSubFingerprint;
try
{
// We moeten hier al locken aangezien de audiofingerprint library geen weet heeft van onze
// LuceneIndex object
subFingerIndex.Lock();
using (SubFingerprintQuery query = new SubFingerprintQuery(subFingerIndex.Index))
{
Resultset answer = query.MatchAudioFingerprint(fsQuery, 2300);
if (answer != null)
{
xResult = ServiceHelper.CreateRoot(ResultErrorCode.OK);
xResult.Add(new XElement("RecognizeResult",
new XAttribute("RecognizeCode", 0),
"OK"));
XElement xTimeStatistics = new XElement("TimeStatistics");
xTimeStatistics.Add(new XElement("TotalQueryTime",
new XAttribute("Unit", "ms"),
(int)answer.QueryTime.TotalMilliseconds));
xTimeStatistics.Add(new XElement("SubFingerQueryTime",
new XAttribute("Unit", "ms"),
(int)answer.FingerQueryTime.TotalMilliseconds));
xTimeStatistics.Add(new XElement("FingerLoadTime",
new XAttribute("Unit", "ms"),
(int)answer.FingerLoadTime.TotalMilliseconds));
xTimeStatistics.Add(new XElement("MatchTime",
new XAttribute("Unit", "ms"),
(int)answer.MatchTime.TotalMilliseconds));
xResult.Add(xTimeStatistics);
XElement xFingerTracks = new XElement("FingerTracks",
new XAttribute("Count", 0));
xResult.Add(xFingerTracks);
if (answer.ResultEntries.Count > 0)
{
// Gets a NumberFormatInfo associated with the en-US culture.
System.Globalization.NumberFormatInfo nfi = new System.Globalization.CultureInfo("en-US", false).NumberFormat;
nfi.CurrencySymbol = "€";
nfi.CurrencyDecimalDigits = 2;
nfi.CurrencyDecimalSeparator = ".";
nfi.NumberGroupSeparator = "";
nfi.NumberDecimalSeparator = ".";
Dictionary <string, ResultEntry> dict = new Dictionary <string, ResultEntry>();
int count = 0;
foreach (ResultEntry item in answer.ResultEntries)
{
XElement xFingerTrack = new XElement("FingerTrack");
xFingerTracks.Add(xFingerTrack);
xFingerTrack.Add(new XAttribute("BER", item.Similarity.ToString()));
xFingerTrack.Add(new XElement("DetectPosition",
new XAttribute("Unit", "ms"),
new XAttribute("InSec", string.Format(nfi, "{0:#0.000}", (item.Time.TotalMilliseconds / 1000))),
(int)item.Time.TotalMilliseconds));
XElement xSearchStrategy = new XElement("SearchStrategy");
xFingerTrack.Add(xSearchStrategy);
xSearchStrategy.Add(new XElement("IndexNumberInMatchList", item.IndexNumberInMatchList));
xSearchStrategy.Add(new XElement("SubFingerCountHitInFingerprint", item.SubFingerCountHitInFingerprint));
xSearchStrategy.Add(new XElement("SearchName", item.SearchStrategy.ToString()));
xSearchStrategy.Add(new XElement("SearchIteration", item.SearchIteration));
xFingerTrack.Add(new XElement("Reference", item.Reference.ToString()));
xFingerTrack.Add(new XElement("FingerTrackID", item.FingerTrackID.ToString()));
count++;
} //foreach
xFingerTracks.Attribute("Count").Value = count.ToString();
}
}
else
{
// Query geeft null waarde terug. Betekent dat er iets goed fout is gegaan
xResult = ServiceHelper.CreateRoot(ResultErrorCode.FAILED);
}
if (xResult != null)
{
return(Message.CreateMessage(MessageVersion.None, "", new XElementBodyWriter(xResult)));
}
// Als we hier komen dan hebben we geen resultaat
return(ServiceHelper.SendErrorMessage(ResultErrorCode.NoResultset, "No resultset"));
} //using
}
finally
{
subFingerIndex.UnLock();
}
} //using
}
catch (Exception e)
{
CDRLogger.Logger.LogError(e);
return(ServiceHelper.SendErrorMessage(ResultErrorCode.Exception, e.Message));
}
finally
{
GC.Collect();
}
}