private void driftCalcButton_Click(object sender, RoutedEventArgs e)
{
List <Match> matches = new List <Match>(matchGrid.SelectedItems.Cast <Match>());
if (matches.Count != 2 || new HashSet <AudioTrack> {
matches[0].Track1, matches[0].Track2, matches[1].Track1, matches[1].Track2
}.Count != 2)
{
MessageBox.Show("Please select two matches between two tracks!", "Drift calculation failed",
MessageBoxButton.OK, MessageBoxImage.Error);
return;
}
Match m1 = matches[0];
Match m2 = matches[1];
bool crossed = m1.Track1 == m2.Track2;
TimeSpan d1 = (crossed ? m2.Track2Time : m2.Track1Time) - m1.Track1Time;
TimeSpan d2 = (crossed ? m2.Track1Time : m2.Track2Time) - m1.Track2Time;
//TimeSpan diff = d2 - d1;
double driftPercentage = 100d / d1.Ticks * d2.Ticks;
MessageBox.Show(
String.Format("Speed of track '{0}' is {2}% compared to track '{1}", m1.Track2.Name, m1.Track2.Name,
driftPercentage), "Drift calculation", MessageBoxButton.OK, MessageBoxImage.Information);
}
private void crossCorrelateButton_Click(object sender, RoutedEventArgs e)
{
List <Match> matches = new List <Match>(matchGrid.SelectedItems.Cast <Match>());
foreach (Match matchFE in matches)
{
Match match = matchFE; // needed as reference for async task
Task.Factory.StartNew(() => {
Match ccm = CrossCorrelation.Adjust(match, progressMonitor);
Dispatcher.BeginInvoke((Action) delegate {
multiTrackViewer.Matches.Add(ccm);
matchGrid.Items.Refresh();
multiTrackViewer.RefreshAdornerLayer();
});
});
}
}
private void addManualMatchPopupAddButton_Click(object sender, RoutedEventArgs e)
{
TimeSpan position = new TimeSpan(multiTrackViewer.VirtualCaretOffset);
AudioTrack t1 = addManualMatchPopupComboBoxA.SelectedItem as AudioTrack;
AudioTrack t2 = addManualMatchPopupComboBoxB.SelectedItem as AudioTrack;
if (t1 != null && t2 != null)
{
Match match = new Match {
Track1 = t1, Track1Time = position - t1.Offset,
Track2 = t2, Track2Time = position - t2.Offset,
Similarity = 1,
Source = "User"
};
multiTrackViewer.Matches.Add(match);
matchGrid.SelectedItem = match;
matchGrid.ScrollIntoView(match);
addManualMatchPopup.IsOpen = false;
}
}
private void matchGrid_MouseDoubleClick(object sender, MouseButtonEventArgs e)
{
Match match = matchGrid.SelectedItem as Match;
if (match != null)
{
TimeSpan t1 = match.Track1.Offset + match.Track1Time;
TimeSpan t2 = match.Track2.Offset + match.Track2Time;
TimeSpan diff = t1 - t2;
multiTrackViewer.Display(t1 - new TimeSpan(diff.Ticks / 2), true);
multiTrackViewer.Display(match);
if (Keyboard.IsKeyDown(Key.LeftCtrl))
{
// sync
MatchProcessor.Align(match);
}
if (Keyboard.IsKeyDown(Key.LeftAlt))
{
if (Keyboard.IsKeyDown(Key.LeftShift))
{
// mute all but selected tracks
foreach (AudioTrack t in trackList)
{
t.Mute = true;
}
match.Track1.Mute = false;
match.Track2.Mute = false;
}
// start playback
MediaCommands.Pause.Execute(null, multiTrackViewer);
MediaCommands.Play.Execute(null, multiTrackViewer);
}
}
}
private void dtwButton_Click(object sender, RoutedEventArgs e)
{
if (trackList.Count > 1)
{
TimeWarpType type = TimeWarpType.DTW;
if ((bool)dtwRadioButton.IsChecked)
{
type = TimeWarpType.DTW;
}
else if ((bool)oltwRadioButton.IsChecked)
{
type = TimeWarpType.OLTW;
}
TimeWarpMode mode = TimeWarpMode.SelectedTracks;
if ((bool)timeWarpModeBorderSectionsRadioButton.IsChecked)
{
mode = TimeWarpMode.BorderSections;
}
else if ((bool)timeWarpModeAllSectionsRadioButton.IsChecked)
{
mode = TimeWarpMode.AllSections;
}
bool calculateSimilarity = (bool)dtwSimilarityCheckBox.IsChecked;
bool normalizeSimilarity = (bool)dtwSimilarityNormalizationCheckBox.IsChecked;
if (mode == TimeWarpMode.SelectedTracks)
{
if (trackList.Count > 1)
{
var masterTrack = (AudioTrack)multiTrackViewer.SelectedItem;
var slaveTracks = new List <AudioTrack>(multiTrackViewer.SelectedItems.Cast <AudioTrack>());
slaveTracks.Remove(masterTrack);
Task.Factory.StartNew(() => {
Parallel.ForEach(slaveTracks,
new ParallelOptions {
MaxDegreeOfParallelism = Math.Max(1, Environment.ProcessorCount - 1)
},
slaveTrack => {
TimeWarp(type,
masterTrack, TimeSpan.Zero, masterTrack.Length,
slaveTrack, TimeSpan.Zero, slaveTrack.Length,
calculateSimilarity, normalizeSimilarity,
false, false);
});
});
}
}
else
{
List <MatchGroup> trackGroups = DetermineMatchGroups(MatchFilterMode.None);
Task.Factory.StartNew(() => {
foreach (MatchGroup trackGroup in trackGroups)
{
foreach (MatchPair trackPair in trackGroup.MatchPairs)
{
List <Match> matches = trackPair.Matches.OrderBy(match => match.Track1Time).ToList();
Match first = matches.First();
Match last = matches.Last();
//Task.Factory.StartNew(() => {
TimeSpan sectionLength = first.Track1Time > first.Track2Time ? first.Track2Time : first.Track1Time;
TimeWarp(type,
first.Track1, first.Track1Time - sectionLength, first.Track1Time,
first.Track2, first.Track2Time - sectionLength, first.Track2Time,
calculateSimilarity, normalizeSimilarity,
true, false);
//});
if (mode == TimeWarpMode.AllSections)
{
if (matches.Count > 1)
{
for (int i = 0; i < matches.Count - 1; i++)
{
Match from = matches[i];
Match to = matches[i + 1];
TimeWarp(type,
from.Track1, from.Track1Time, to.Track1Time,
from.Track2, from.Track2Time, to.Track2Time,
calculateSimilarity, normalizeSimilarity,
false, false);
}
}
}
//Task.Factory.StartNew(() => {
sectionLength = last.Track1.Length - last.Track1Time > last.Track2.Length - last.Track2Time ?
last.Track2.Length - last.Track2Time : last.Track1.Length - last.Track1Time;
TimeWarp(type,
last.Track1, last.Track1Time, last.Track1Time + sectionLength,
last.Track2, last.Track2Time, last.Track2Time + sectionLength,
calculateSimilarity, normalizeSimilarity,
false, true);
//});
}
}
});
}
}
}
