private void MyWaveFormCallback(int framesDone, int framesTotal, TimeSpan elapsedTime, bool finished)
{
if (finished)
{
_WF.SyncPlayback(_currentTrack.Channel);
// and do pre-calculate the next track position
// in this example we will only use the end-position
long startPos = 0L;
long endPos = 0L;
if (_WF.GetCuePoints(ref startPos, ref endPos, -24.0, -12.0, true))
{
_currentTrack.NextTrackPos = endPos;
// if there is already a sync set, remove it first
if (_currentTrack.NextTrackSync != 0)
{
BassMix.BASS_Mixer_ChannelRemoveSync(_currentTrack.Channel, _currentTrack.NextTrackSync);
}
// set the next track sync automatically
_currentTrack.NextTrackSync = BassMix.BASS_Mixer_ChannelSetSync(_currentTrack.Channel, BASSSync.BASS_SYNC_POS | BASSSync.BASS_SYNC_MIXTIME, _currentTrack.NextTrackPos, _currentTrack.TrackSync, new IntPtr(1));
_WF.AddMarker("Next", _currentTrack.NextTrackPos);
}
}
// will be called during rendering...
DrawWave();
}
/// <summary>
/// Clears the automation sync positions.
/// </summary>
/// <param name="track">The track.</param>
private void ClearAutomationSyncPositions(AudioStream track)
{
foreach (var trigger in AutomationAttributesHelper.GetAutomationAttributes(track.Description).TrackFXTriggers)
{
if (trigger.StartSyncId != int.MinValue)
{
BassMix.BASS_Mixer_ChannelRemoveSync(track.ChannelId, trigger.StartSyncId);
trigger.StartSyncId = int.MinValue;
}
if (trigger.EndSyncId == int.MinValue)
{
continue;
}
BassMix.BASS_Mixer_ChannelRemoveSync(track.ChannelId, trigger.EndSyncId);
trigger.EndSyncId = int.MinValue;
}
foreach (var trigger in GetCurrentSampleTriggers())
{
if (trigger.StartSyncId != int.MinValue)
{
BassMix.BASS_Mixer_ChannelRemoveSync(track.ChannelId, trigger.StartSyncId);
trigger.StartSyncId = int.MinValue;
}
if (trigger.EndSyncId == int.MinValue)
{
continue;
}
BassMix.BASS_Mixer_ChannelRemoveSync(track.ChannelId, trigger.EndSyncId);
trigger.EndSyncId = int.MinValue;
}
}
private static void RemoveSyncFromStream(AudioStream audioStream, AudioSync sync)
{
if (sync.Id == int.MinValue)
{
return;
}
BassMix.BASS_Mixer_ChannelRemoveSync(audioStream.ChannelId, sync.Id);
sync.Id = int.MinValue;
}
private void pictureBoxWaveForm_MouseDown(object sender, System.Windows.Forms.MouseEventArgs e)
{
if (_WF == null)
{
return;
}
bool doubleClick = e.Clicks > 1;
bool lowerHalf = (e.Y > pictureBoxWaveForm.Height / 2);
if (lowerHalf && doubleClick)
{
ToggleZoom();
}
else if (!lowerHalf && e.Button == MouseButtons.Left)
{
// left button will set the position
long pos = _WF.GetBytePositionFromX(e.X, pictureBoxWaveForm.Width, _zoomStart, _zoomEnd);
SetEnvelopePos(_currentTrack.Channel, pos);
}
else if (!lowerHalf)
{
_currentTrack.NextTrackPos = _WF.GetBytePositionFromX(e.X, pictureBoxWaveForm.Width, _zoomStart, _zoomEnd);
// if there is already a sync set, remove it first
if (_currentTrack.NextTrackSync != 0)
{
BassMix.BASS_Mixer_ChannelRemoveSync(_currentTrack.Channel, _currentTrack.NextTrackSync);
}
// right button will set a next track position sync
_currentTrack.NextTrackSync = BassMix.BASS_Mixer_ChannelSetSync(_currentTrack.Channel, BASSSync.BASS_SYNC_POS | BASSSync.BASS_SYNC_MIXTIME, _currentTrack.NextTrackPos, _currentTrack.TrackSync, new IntPtr(1));
_WF.AddMarker("Next", _currentTrack.NextTrackPos);
DrawWave();
}
}
public void ForceFadeNow(ForceFadeType fadeType)
{
if (PlayState != PlayState.Playing)
{
return;
}
if (NextTrack == null || CurrentTrack == null)
{
return;
}
if (fadeType == ForceFadeType.SkipToEnd)
{
AudioStreamHelper.SetPosition(CurrentTrack,
CurrentTrack.FadeOutStart - CurrentTrack.SecondsToSamples(0.01M));
}
else
{
CurrentForceFadeType = fadeType;
IsForceFadeNowMode = true;
var length = 0D;
switch (fadeType)
{
case ForceFadeType.Cut:
length = GetCutFadeLength(CurrentTrack);
break;
case ForceFadeType.PowerDown:
length = GetPowerDownFadeLength(CurrentTrack);
CurrentTrack.PowerDownOnEnd = true;
break;
case ForceFadeType.QuickFade:
length = GetCutFadeLength(CurrentTrack);
break;
case ForceFadeType.SkipToEnd:
break;
default:
throw new ArgumentOutOfRangeException(nameof(fadeType), fadeType, null);
}
if (CurrentTrack.FadeOutLengthSeconds < length)
{
length = CurrentTrack.FadeOutLengthSeconds;
}
CurrentTrack.EndLoopCount = 0;
BassMix.BASS_Mixer_ChannelRemoveSync(CurrentTrack.ChannelId, CurrentTrack.FadeOutStartSyncId);
CurrentTrack.FadeOutStartSyncId = int.MinValue;
BassMix.BASS_Mixer_ChannelRemoveSync(CurrentTrack.ChannelId, CurrentTrack.FadeOutEndSyncId);
CurrentTrack.FadeOutEndSyncId = int.MinValue;
var position = AudioStreamHelper.GetPosition(CurrentTrack);
CurrentTrack.FadeOutStart = position + CurrentTrack.SecondsToSamples(0.05M);
SetTrackSync(CurrentTrack, CurrentTrack.FadeOutStart, SyncType.StartFadeOut);
CurrentTrack.FadeOutEnd = CurrentTrack.FadeOutStart + CurrentTrack.SecondsToSamples(length);
SetTrackSync(CurrentTrack, CurrentTrack.FadeOutEnd, SyncType.EndFadeOut);
}
}
