public static float[] Decode(string fileIn, int srate, int secondsToAnalyze)
{
DbgTimer t = new DbgTimer();
t.Start();
float[] floatBuffer = null;
// check if file exists
if (fileIn != null && fileIn != "")
{
FileInfo fi = new FileInfo(fileIn);
if (!fi.Exists)
{
Console.Out.WriteLine("No file found {0}!", fileIn);
return(null);
}
}
// Try to use Un4Seen Bass
BassProxy bass = BassProxy.Instance;
double duration = bass.GetDurationInSeconds(fileIn);
if (duration > 0)
{
Dbg.WriteLine("Using BASS to decode the file ...");
// duration in seconds
if (duration > secondsToAnalyze)
{
// find segment to extract
double startSeconds = (duration / 2 - (secondsToAnalyze / 2));
if (startSeconds < 0)
{
startSeconds = 0;
}
floatBuffer = bass.ReadMonoFromFile(fileIn, srate, secondsToAnalyze * 1000, (int)(startSeconds * 1000));
// if this failes, the duration read from the tags was wrong or it is something wrong with the audio file
if (floatBuffer == null)
{
IOUtils.LogMessageToFile(Mir.WARNING_FILES_LOG, fileIn);
}
}
else
{
// return whole file
floatBuffer = bass.ReadMonoFromFile(fileIn, srate, 0, 0);
// if this failes, the duration read from the tags was wrong or it is something wrong with the audio file
if (floatBuffer == null)
{
IOUtils.LogMessageToFile(Mir.WARNING_FILES_LOG, fileIn);
}
}
}
// Bass failed reading or never even tried, so use another alternative
if (floatBuffer == null)
{
Dbg.WriteLine("Using MPlayer and SOX to decode the file ...");
fileIn = Regex.Replace(fileIn, "%20", " ");
floatBuffer = DecodeUsingMplayerAndSox(fileIn, srate, secondsToAnalyze);
}
return(floatBuffer);
}
/// <summary>
/// Scan a directory recursively and add all the audio files found to the database
/// </summary>
/// <param name="path">Path to directory</param>
/// <param name="db">MandelEllis or Scms Database Instance</param>
/// <param name="repository">Soundfingerprinting Repository</param>
/// <param name="skipDurationAboveSeconds">Skip files with duration longer than this number of seconds (0 or less disables this)</param>
/// <param name="silent">true if silent mode (reduced console output)</param>
public static void ScanDirectory(string path, Db db, Repository repository, double skipDurationAboveSeconds, bool silent=false) {
Stopwatch stopWatch = Stopwatch.StartNew();
FAILED_FILES_LOG.Delete();
WARNING_FILES_LOG.Delete();
// scan directory for audio files
try
{
// By some reason the IOUtils.GetFiles returns a higher count than what seams correct?!
IEnumerable<string> filesAll =
Directory.EnumerateFiles(path, "*", SearchOption.AllDirectories)
.Where(f => extensions.Contains(Path.GetExtension(f).ToLower()));
Console.Out.WriteLine("Found {0} files in scan directory.", filesAll.Count());
// Get all already processed files stored in the database and store in memory
// It seems to work well with huge volumes of files (200k)
IList<string> filesAlreadyProcessed = repository.DatabaseService.ReadTrackFilenames();
Console.Out.WriteLine("Database contains {0} already processed files.", filesAlreadyProcessed.Count);
// find the files that has not already been added to the database
List<string> filesRemaining = filesAll.Except(filesAlreadyProcessed).ToList();
Console.Out.WriteLine("Found {0} files remaining in scan directory to be processed.", filesRemaining.Count);
int filesCounter = 1;
int filesAllCounter = filesAlreadyProcessed.Count + 1;
#if !DEBUG
Console.Out.WriteLine("Running in multi-threaded mode!");
Parallel.ForEach(filesRemaining, file =>
{
#else
Console.Out.WriteLine("Running in single-threaded mode!");
foreach (string file in filesRemaining)
{
#endif
FileInfo fileInfo = new FileInfo(file);
// Try to use Un4Seen Bass to check duration
BassProxy bass = BassProxy.Instance;
double duration = bass.GetDurationInSeconds(fileInfo.FullName);
// check if we should skip files longer than x seconds
if ( (skipDurationAboveSeconds > 0 && duration > 0 && duration < skipDurationAboveSeconds)
|| skipDurationAboveSeconds <= 0
|| duration < 0) {
if(!Analyzer.AnalyzeAndAddComplete(fileInfo, db, repository)) {
//if(!Analyzer.AnalyzeAndAddSoundfingerprinting(fileInfo, repository)) {
//if(!Analyzer.AnalyzeAndAddScms(fileInfo, db)) {
Console.Out.WriteLine("Failed! Could not generate audio fingerprint for {0}!", fileInfo.Name);
IOUtils.LogMessageToFile(FAILED_FILES_LOG, fileInfo.FullName);
} else {
Console.Out.WriteLine("[{1}/{2} - {3}/{4}] Succesfully added {0} to database. (Thread: {5})", fileInfo.Name, filesCounter, filesRemaining.Count, filesAllCounter, filesAll.Count(), Thread.CurrentThread.ManagedThreadId);
// Threadsafe increment (TODO: doesn't always seem to work?)
//filesCounter++;
//filesAllCounter++;
Interlocked.Increment(ref filesCounter);
Interlocked.Increment(ref filesAllCounter);
}
} else {
if (!silent) Console.Out.WriteLine("Skipping {0} since duration exceeds limit ({1:0.00} > {2:0.00} sec.)", fileInfo.Name, duration, skipDurationAboveSeconds);
}
fileInfo = null;
}
#if !DEBUG
);
#endif
int filesActuallyProcessed = filesCounter -1;
Console.WriteLine("Added {0} out of a total remaining set of {1} files. (Of {2} files found).", filesActuallyProcessed, filesRemaining.Count(), filesAll.Count());
}
catch (UnauthorizedAccessException UAEx)
{
Console.WriteLine(UAEx.Message);
}
catch (PathTooLongException PathEx)
{
Console.WriteLine(PathEx.Message);
}
catch (System.NullReferenceException NullEx) {
Console.WriteLine(NullEx.Message);
}
Console.WriteLine("Time used: {0}", stopWatch.Elapsed);
}