private void buttonAddFile_Click(object sender, EventArgs e)
{
if (DialogResult.OK == openFileDialog.ShowDialog(this))
{
if (File.Exists(openFileDialog.FileName))
{
lock (listBoxPlaylist)
{
Track track = new Track(openFileDialog.FileName);
listBoxPlaylist.Items.Add(track);
// in the demo we already add each new track to the mixer
// this is in real life not the best place to do so (especially with larger playlists)
// but for the demo it is okay ;-)
// add the new track to the mixer (in PAUSED mode!)
BassMix.BASS_Mixer_StreamAddChannel(_mixer, track.Channel, BASSFlag.BASS_MIXER_PAUSE | BASSFlag.BASS_MIXER_DOWNMIX | BASSFlag.BASS_STREAM_AUTOFREE);
// an BASS_SYNC_END is used to trigger the next track in the playlist (if no POS sync was set)
track.TrackSync = new SYNCPROC(OnTrackSync);
BassMix.BASS_Mixer_ChannelSetSync(track.Channel, BASSSync.BASS_SYNC_END, 0L, track.TrackSync, new IntPtr(0));
}
if (_currentTrack == null)
{
PlayNextTrack();
}
}
}
}
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();
}
public void StreamAddChannel(int channel, SYNCPROC trackSync)
{
//BassMix.BASS_Mixer_StreamAddChannel(Player.Mixer, channel, BASSFlag.BASS_MIXER_PAUSE | BASSFlag.BASS_STREAM_AUTOFREE | BASSFlag.BASS_MIXER_DOWNMIX);
BassMix.BASS_Mixer_StreamAddChannel(Player.Mixer, channel, BASSFlag.BASS_MIXER_PAUSE | BASSFlag.BASS_MIXER_DOWNMIX | BASSFlag.BASS_STREAM_AUTOFREE);
// an BASS_SYNC_END is used to trigger the next track in the playlist (if no POS sync was set)
BassMix.BASS_Mixer_ChannelSetSync(channel, BASSSync.BASS_SYNC_END, 0L, trackSync, new IntPtr(1));
}
private static void AddSyncToStream(AudioStream audioStream, AudioSync audioSync)
{
lock (audioStream)
{
audioStream.AudioSyncs.Add(audioSync);
}
if (audioSync.SyncType == SyncType.Start || audioStream.DisableSyncs)
{
return;
}
audioSync.Id = BassMix.BASS_Mixer_ChannelSetSync(audioStream.ChannelId,
BASSSync.BASS_SYNC_POS | BASSSync.BASS_SYNC_MIXTIME,
audioSync.Position,
audioStream.SyncProc,
new IntPtr((int)audioSync.SyncType));
}
public void Play_With_Buildup()
{
Stop();
if (InitBass(HZ))
{
Channel = BassMix.BASS_Mixer_StreamCreate(HZ, 2, BASSFlag.BASS_MIXER_END);
point_B = GCHandle.Alloc(build_mem, GCHandleType.Pinned);
point_L = GCHandle.Alloc(loop_mem, GCHandleType.Pinned);
Stream_B = Bass.BASS_StreamCreateFile(point_B.AddrOfPinnedObject(), 0, build_mem.LongLength, BASSFlag.BASS_STREAM_DECODE);
build_len = Bass.BASS_ChannelGetLength(Stream_B, BASSMode.BASS_POS_BYTES);
Stream_L = Bass.BASS_StreamCreateFile(point_L.AddrOfPinnedObject(), 0, loop_mem.LongLength, BASSFlag.BASS_STREAM_DECODE);
loop_len = Bass.BASS_ChannelGetLength(Stream_L);
BassMix.BASS_Mixer_StreamAddChannel(Channel, Stream_B, BASSFlag.BASS_DEFAULT);
BassMix.BASS_Mixer_StreamAddChannelEx(Channel, Stream_L, BASSFlag.BASS_MIXER_NORAMPIN, build_len, 0);
_loopSync = BassMix.BASS_Mixer_ChannelSetSync(Stream_L, BASSSync.BASS_SYNC_POS | BASSSync.BASS_SYNC_MIXTIME, loop_len, _loopSyncCallback, new IntPtr(1));
}
}
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();
}
}
