public MixingWaveProvider32 Overlay(ISampleProvider music, ISampleProvider watermark, double watermarkOffset)
{
if (music == null || watermark == null)
{
throw new ArgumentNullException("Не удалось наложить водяной знак. Трек или водяной знак были пустыми");
}
// Инициализация энкодера(чтобы получать на выходе любой формат)
NAudio.MediaFoundation.MediaFoundationApi.Startup();
var sampleProvider = new OffsetSampleProvider(watermark.ToWaveProvider().ToSampleProvider()); //Деление на sample
sampleProvider.DelayBy = TimeSpan.FromSeconds(watermarkOffset); //Добавление задержки
var watermarkWaveProvider = sampleProvider.ToWaveProvider(); //Перевод в wave водяного знака
var musicWaveProvider = music.ToWaveProvider(); //Перевод в wave музыки
// Слияние трека и водяного знака
var result = new MixingWaveProvider32(new[] { musicWaveProvider, watermarkWaveProvider });
result.ToSampleProvider().ToWaveProvider16();
return(result);
}
private void SaveSong(Song songToSave, bool skipValidation = false)
{
try {
Cursor.Current = Cursors.WaitCursor;
bool reload = false;
if (!skipValidation)
{
ValidateSong();
}
//might need to generate the lead in time here and add the lead in time to every note...
if (!songToSave.LeadInTimeGenerated)
{
audioFile.Position = 0; //reset position else we'll just offset everything to where it left playing
var offset = new OffsetSampleProvider(audioFile.ToSampleProvider());
if (songToSave.LastLeadInTime != -1)
{
var lastLeadInMS = songToSave.LastLeadInTime * 1000;
//need to remove the delay then readdd.
offset.SkipOver = TimeSpan.FromSeconds(songToSave.LastLeadInTime);
//audioFile.Position = CurrentSong.LastLeadInTime * 1000; //this skips the file forward by the amount of time in the last delay.
foreach (var beat in songToSave.EasyBeats)
{
beat.HitTime -= lastLeadInMS;
}
foreach (var beat in songToSave.AdvancedBeats)
{
beat.HitTime -= lastLeadInMS;
}
foreach (var beat in songToSave.ExpertBeats)
{
beat.HitTime -= lastLeadInMS;
}
if (songToSave.PreviewStart > lastLeadInMS)
{
songToSave.PreviewStart -= lastLeadInMS;
}
if (songToSave.PreviewEnd > lastLeadInMS)
{
songToSave.PreviewEnd -= lastLeadInMS;
}
}
offset.DelayBy = TimeSpan.FromSeconds(songToSave.LeadInTime);
var tempFileName = Path.Combine(SongFolder, Path.GetFileNameWithoutExtension(songToSave.FileName) + "extend" + Path.GetExtension(songToSave.FileName));
WaveFileWriter.CreateWaveFile(tempFileName, offset.ToWaveProvider());
File.Delete(Path.Combine(SongFolder, songToSave.FileName));
File.Move(tempFileName, Path.Combine(SongFolder, songToSave.FileName));
var leadInMS = songToSave.LeadInTime * 1000;
foreach (var beat in songToSave.EasyBeats)
{
beat.HitTime += leadInMS;
}
foreach (var beat in songToSave.AdvancedBeats)
{
beat.HitTime += leadInMS;
}
foreach (var beat in songToSave.ExpertBeats)
{
beat.HitTime += leadInMS;
}
if (songToSave.PreviewStart > 0)
{
songToSave.PreviewStart += leadInMS;
}
if (songToSave.PreviewEnd > 0)
{
songToSave.PreviewEnd += leadInMS;
}
songToSave.LeadInTimeGenerated = true;
reload = true; //need to reload to account for the new offset.
}
if (!String.IsNullOrWhiteSpace(songToSave.ImageData))
{
File.WriteAllBytes(Path.Combine(SongFolder, songToSave.ImageFileName), Convert.FromBase64String(songToSave.ImageData));
songToSave.ImageData = String.Empty;
}
var json = JsonConvert.SerializeObject(songToSave);
File.WriteAllText(Path.Combine(SongFolder, $"{Path.GetFileNameWithoutExtension(SongFile)}.js"), json);
File.Delete(SongFile);
ZipFile.CreateFromDirectory(SongFolder, SongFile);
if (reload)
{
LoadSong(SongFile);
}
} catch (SaveValidationException e) {
MessageBox.Show("Your song has not been saved due to an error: " + e.Message, "Save validation error", MessageBoxButtons.OK, MessageBoxIcon.Error);
} finally {
Cursor.Current = Cursors.Default;
}
}