| public Start ( int sample_rate, int num_channels ) : bool | ||
| sample_rate | int | sample rate of the audio stream (in Hz) |
| num_channels | int | numbers of channels in the audio stream (1 or 2) |
| return | bool | |
private void ProcessFile(string file)
{
if (File.Exists(file))
{
if (decoder.Ready)
{
//btnOpen.Enabled = false;
btnFingerPrint.Enabled = false;
btnRequest.Enabled = false;
Task.Factory.StartNew(() =>
{
Stopwatch stopwatch = new Stopwatch();
stopwatch.Start();
ChromaContext context = new ChromaContext();
context.Start(decoder.SampleRate, decoder.Channels);
decoder.Decode(context.Consumer, 120);
context.Finish();
stopwatch.Stop();
ProcessFileCallback(context.GetFingerprint(), stopwatch.ElapsedMilliseconds);
});
}
}
}
internal static void Fingerprint(Database.Song row)
{
NAudioDecoder decoder = new NAudioDecoder();
string filename = row.Path + "\\" + row.Filename;
if (System.IO.File.Exists(filename))
{
decoder.Load(filename);
string duration;
int bits = decoder.SourceBitDepth;
int channels = decoder.SourceChannels;
if (decoder.Ready)
{
duration = decoder.Duration.ToString();
ChromaContext context = new ChromaContext();
context.Start(decoder.SampleRate, decoder.Channels);
decoder.Decode(context.Consumer, 120);
context.Finish();
// Release audio file handle.
decoder.Dispose();
if (String.IsNullOrEmpty(AcoustID.Configuration.ApiKey))
{
// TODO: display a prompt for api key.
AcoustID.Configuration.ApiKey = "8XaBELgH";
}
LookupService service = new LookupService();
List<Recording> recs = new List<Recording>();
List<LookupResult> results = service.Get(context.GetFingerprint(), decoder.Duration, new string[] { "recordings", "compress" });
foreach (LookupResult res in results)
{
foreach (Recording rec in res.Recordings)
{
recs.Add(rec);
}
}
string _lastFmQueryAddress = RockBox.Properties.Resources.LastFmQueryAddress + "?";
string _lastFmApiKey = RockBox.Properties.Resources.LastFmApiKey;
LastFmApi.Session s = new LastFmApi.Session(_lastFmApiKey, _lastFmQueryAddress);
if (recs.Count > 0)
{
Recording li = recs[0];
string artist = "";
string title = "";
if (li.Artists.Count > 0)
{
artist = li.Artists[0].Name;
}
if (li.Title != null)
{
title = li.Title;
}
// we kinda have to do it this way because last.fm returns slightly different schema
// depending on what data it has (Tags being a name value pair as opposed to a list of pairs, for example)
try
{
LastFmApi.Query.Track.GetInfo q = new LastFmApi.Query.Track.GetInfo(artist, title);
LastFmApi.DataTypes.Track.RootObject o = q.Get(s);
ProcessTrack(o, row);
Console.WriteLine("Processing " + row.Filename);
}
catch (Exception e)
{
LastFmApi.Query.Track2.GetInfo q = new LastFmApi.Query.Track2.GetInfo(artist, title);
LastFmApi.DataTypes.Track2.RootObject o = q.Get(s);
ProcessTrack2(o, row);
Console.WriteLine("Processing " + row.Filename);
}
}
else
{
Console.WriteLine("Couldn't find a recording for " + row.Filename);
}
}
}
}
private void doFingerprint(object sender, RoutedEventArgs e)
{
if (File.Exists(txtFile.Text))
{
if (decoder.Ready)
{
//btnOpen.Enabled = false;
btnFingerprint.IsEnabled = false;
Stopwatch stopwatch = new Stopwatch();
stopwatch.Start();
ChromaContext context = new ChromaContext();
context.Start(decoder.SampleRate, decoder.Channels);
decoder.Decode(context.Consumer, 120);
context.Finish();
stopwatch.Stop();
ProcessFileCallback(context.GetFingerprint(), stopwatch.ElapsedMilliseconds);
}
}
}