private void buttonSetEnvelope_Click(object sender, EventArgs e)
{
if (_currentTrack.Channel != 0)
{
BASS_MIXER_NODE[] nodes =
{
new BASS_MIXER_NODE(Bass.BASS_ChannelSeconds2Bytes(_mixer, 10d), 1f),
new BASS_MIXER_NODE(Bass.BASS_ChannelSeconds2Bytes(_mixer, 13d), 0f),
new BASS_MIXER_NODE(Bass.BASS_ChannelSeconds2Bytes(_mixer, 17d), 0f),
new BASS_MIXER_NODE(Bass.BASS_ChannelSeconds2Bytes(_mixer, 20d), 1f)
};
BassMix.BASS_Mixer_ChannelSetEnvelope(_currentTrack.Channel, BASSMIXEnvelope.BASS_MIXER_ENV_VOL, nodes);
// already align the envelope position to the current playback position
// pause mixer
Bass.BASS_ChannelLock(_mixer, true);
long pos = BassMix.BASS_Mixer_ChannelGetPosition(_currentTrack.Channel);
// convert source pos to mixer pos
long envPos = Bass.BASS_ChannelSeconds2Bytes(_mixer, Bass.BASS_ChannelBytes2Seconds(_currentTrack.Channel, pos));
BassMix.BASS_Mixer_ChannelSetEnvelopePos(_currentTrack.Channel, BASSMIXEnvelope.BASS_MIXER_ENV_VOL, envPos);
// resume mixer
Bass.BASS_ChannelLock(_mixer, false);
// and show it in our waveform
_WF.DrawVolume = WaveForm.VOLUMEDRAWTYPE.Solid;
foreach (BASS_MIXER_NODE node in nodes)
{
_WF.AddVolumePoint(node.pos, node.val);
}
DrawWave();
}
}
private void ToggleZoom()
{
if (_WF == null)
{
return;
}
// WF is not null, so the stream must be playing...
if (_zoomed)
{
// unzoom...(display the whole wave form)
_zoomStart = -1;
_zoomStartBytes = -1;
_zoomEnd = -1;
}
else
{
// zoom...(display only a partial wave form)
long pos = BassMix.BASS_Mixer_ChannelGetPosition(_currentTrack.Channel);
// calculate the window to display
_zoomStart = _WF.Position2Frames(pos);
_zoomStartBytes = _WF.Frame2Bytes(_zoomStart);
_zoomEnd = _zoomStart + _WF.Position2Frames(_zoomDistance) - 1;
if (_zoomEnd >= _WF.Wave.data.Length)
{
// beyond the end, so we zoom from end - _zoomDistance.
_zoomEnd = _WF.Wave.data.Length - 1;
_zoomStart = _zoomEnd - _WF.Position2Frames(_zoomDistance) + 1;
_zoomStartBytes = _WF.Frame2Bytes(_zoomStart);
}
}
_zoomed = !_zoomed;
// and display this new wave form
DrawWave();
}
/// <summary>
/// Текущая позиция в секундах
/// </summary>
/// <param name="stream"></param>
/// <returns></returns>
public double GetPosOfStream(int stream)
{
long pos;
if (point_L.IsAllocated)
{
pos = BassMix.BASS_Mixer_ChannelGetPosition(stream, BASSMode.BASS_POS_BYTES);
}
else
{
pos = Bass.BASS_ChannelGetPosition(stream);
}
return(Bass.BASS_ChannelBytes2Seconds(stream, pos));
}
private void timerUpdate_Tick(object sender, EventArgs e)
{
int level = Bass.BASS_ChannelGetLevel(_mixer);
progressBarLeft.Value = Utils.LowWord32(level);
progressBarRight.Value = Utils.HighWord32(level);
if (_currentTrack != null)
{
long pos = BassMix.BASS_Mixer_ChannelGetPosition(_currentTrack.Channel);
labelTime.Text = Utils.FixTimespan(Bass.BASS_ChannelBytes2Seconds(_currentTrack.Channel, pos), "HHMMSS");
labelRemain.Text = Utils.FixTimespan(Bass.BASS_ChannelBytes2Seconds(_currentTrack.Channel, _currentTrack.TrackLength - pos), "HHMMSS");
DrawWavePosition(pos, _currentTrack.TrackLength);
}
}
public void Evaluate(int SpreadMax)
{
bool updateplay = false;
bool reset = false;
reset = this.FPinCfgIsDecoding.PinIsChanged;
if (!reset)
{
double dblreset;
this.FPinInReset.GetValue(0, out dblreset);
reset = dblreset >= 0.5;
}
if (this.FPinInLoopStartPos.PinIsChanged || this.FPinInLoopEndPos.PinIsChanged)
{
this.ProcessStartEnd();
}
#region Reset the channel
if (reset)
{
DynamicChannelInfo info = new DynamicChannelInfo();
double dbldec;
this.FPinCfgIsDecoding.GetValue(0, out dbldec);
info.IsDecoding = dbldec == 1;
this.manager.CreateChannel(info);
this.FChannelInfo = info;
this.ProcessStartEnd();
this.FChannelInfo.Buffer = new float[this.FPinInBuffer.SliceCount];
for (int i = 0; i < this.FPinInBuffer.SliceCount; i++)
{
double d;
this.FPinInBuffer.GetValue(i, out d);
this.FChannelInfo.Buffer[i] = (float)d;
}
this.FOriginalIndices.Clear();
this.FPinOutHandle.SetValue(0, this.FChannelInfo.InternalHandle);
updateplay = true;
}
#endregion
#region Write Data
double doWrite;
this.FPinInDoWrite.GetValue(0, out doWrite);
if (doWrite >= 0.5)
{
int len = this.FPinInData.SliceCount;
if (this.FPinInIndices.SliceCount < len)
{
len = this.FPinInIndices.SliceCount;
}
for (int i = 0; i < len; i++)
{
double dblindices, dbldata;
this.FPinInIndices.GetValue(i, out dblindices);
this.FPinInData.GetValue(i, out dbldata);
int idx = Convert.ToInt32(dblindices);
if (idx < this.FChannelInfo.Buffer.Length)
{
if (!this.FOriginalIndices.ContainsKey(idx))
{
this.FOriginalIndices.Add(idx, this.FChannelInfo.Buffer[idx]);
}
this.FChannelInfo.Buffer[idx] = (float)dbldata;
}
}
}
#endregion
#region Restore
double dblrestore;
this.FPinInRestore.GetValue(0, out dblrestore);
if (dblrestore >= 0.5)
{
//Restore the buffer with orginal values
foreach (int i in this.FOriginalIndices.Keys)
{
this.FChannelInfo.Buffer[i] = this.FOriginalIndices[i];
}
this.FOriginalIndices.Clear();
}
#endregion
#region Update Play/Pause
if (this.FPinInPlay.PinIsChanged || updateplay)
{
if (this.FChannelInfo.InternalHandle != 0)
{
double doplay;
this.FPinInPlay.GetValue(0, out doplay);
if (doplay == 1 && this.FPinOutHandle.IsConnected)
{
this.manager.GetChannel(this.FChannelInfo.InternalHandle).Play = true;
}
else
{
this.manager.GetChannel(this.FChannelInfo.InternalHandle).Play = false;
}
}
}
#endregion
#region Update Current Position/Length
if (this.FChannelInfo.InternalHandle != 0)
{
if (this.FChannelInfo.BassHandle.HasValue)
{
int mixerhandle = BassMix.BASS_Mixer_ChannelGetMixer(this.FChannelInfo.BassHandle.Value);
long pos;
if (mixerhandle != 0)
{
pos = BassMix.BASS_Mixer_ChannelGetPosition(this.FChannelInfo.BassHandle.Value);
}
else
{
pos = Bass.BASS_ChannelGetPosition(this.FChannelInfo.BassHandle.Value);
}
double seconds = Bass.BASS_ChannelBytes2Seconds(this.FChannelInfo.BassHandle.Value, pos);
this.FPinOutCurrentPosition.SetValue(0, seconds);
this.FPinOutBufferPosition.SetValue(0, this.FChannelInfo.BufferPosition);
}
}
#endregion
#region Tempo and Pitch
if (this.FPinInPitch.PinIsChanged || this.FPinInTempo.PinIsChanged)
{
if (this.FChannelInfo.InternalHandle != 0)
{
double pitch, tempo;
this.FPinInPitch.GetValue(0, out pitch);
this.FPinInTempo.GetValue(0, out tempo);
this.FChannelInfo.Pitch = pitch;
this.FChannelInfo.Tempo = tempo;
}
}
#endregion
}
