/// <summary>
/// Stop Lame encoding
/// </summary>
/// <returns></returns>
private byte[] StopLameEncoding()
{
lameEncoder.Stop();
// now you might copy your dynamic arraylist to a flat byte[]
return((byte[])_lameMemBuffer.ToArray(typeof(byte)));
}
public async void SaveToFile(string file, Action finished)
{
await Task.Factory.StartNew(() =>
{
//从文件中读取解码流
int strm = Bass.BASS_StreamCreateFile(_file, 0, 0, BASSFlag.BASS_STREAM_DECODE);
//从strm解码流中创建FX效果器
strm = BassFx.BASS_FX_TempoCreate(strm, BASSFlag.BASS_STREAM_DECODE);
//为效果器设置参数 Pitch&Speed
if (_Pitch != -1024)
{
Bass.BASS_ChannelSetAttribute(strm, BASSAttribute.BASS_ATTRIB_TEMPO_PITCH, _Pitch);
}
if (_Speed != -1024)
{
Bass.BASS_ChannelSetAttribute(strm, BASSAttribute.BASS_ATTRIB_TEMPO, _Speed);
}
//初始化编码器
EncoderLAME l = new EncoderLAME(strm);
l.InputFile = null; //STDIN
l.OutputFile = file; //输出文件路径
l.LAME_Bitrate = (int)EncoderLAME.BITRATE.kbps_128; //比特率
l.LAME_Mode = EncoderLAME.LAMEMode.Default; //默认模式
l.LAME_Quality = EncoderLAME.LAMEQuality.Quality; //高品质
l.LAME_TargetSampleRate = (int)EncoderLAME.SAMPLERATE.Hz_44100; //44100码率
//解码流开始(并不是播放，也不会有声音输出)
Bass.BASS_ChannelPlay(strm, false);
//开始编码
l.Start(null, IntPtr.Zero, false);
byte[] encBuffer = new byte[65536]; // our dummy encoder buffer
while (Bass.BASS_ChannelIsActive(strm) == BASSActive.BASS_ACTIVE_PLAYING)
{
// getting sample data will automatically feed the encoder
int len = Bass.BASS_ChannelGetData(strm, encBuffer, encBuffer.Length);
}
l.Stop(); // finish
Bass.BASS_StreamFree(strm);
finished();
});
}
private void buttonStopRec_Click(object sender, System.EventArgs e)
{
Bass.BASS_ChannelStop(_recHandle);
lame.Stop();
this.buttonStartRec.Enabled = true;
this.labelRec.Text = "Recording stopped!";
// stop the live recording waveform
if (WF != null)
{
WF.RenderStopRecording();
//DrawWave();
// or now draw the wole wave form...
// Note: to total length is always up to how it was initialized using WF.RenderStartRecording(_recHandle, 5, 2);
// This means it is either 5, 7, 9, 11,... etc. seconds long
// This is why sometimes the wave form doesn't fill the full pictureBox!
this.pictureBoxLiveWave.BackgroundImage = WF.CreateBitmap(this.pictureBoxLiveWave.Width, this.pictureBoxLiveWave.Height, -1, -1, true);
}
if (checkBoxMonitor.Checked)
{
checkBoxMonitor.Checked = false;
}
}
private void convertWorker_DoWork(object sender, DoWorkEventArgs e)
{
while (files.Count > 0)
{
Track t = files.First();
int convertStream = 20;
if (!Program.mainWindow.LoadStream(t.filename, out convertStream, BASSFlag.BASS_STREAM_DECODE | BASSFlag.BASS_MUSIC_DECODE))
{
continue;
}
if (Bass.BASS_ErrorGetCode() == 0 && t.length > 0)
{
EncoderLAME l = new EncoderLAME(convertStream);
l.InputFile = null;
string tryName = Path.GetFileNameWithoutExtension(t.filename) + ".mp3";
int num = 0;
while (File.Exists(Path.Combine(outputPath, tryName)))
{
tryName = Path.GetFileNameWithoutExtension(t.filename) + "_" + num + ".mp3";
num++;
}
l.OutputFile = Path.Combine(outputPath, tryName);
l.LAME_Bitrate = currentBitrate;
l.LAME_Mode = EncoderLAME.LAMEMode.Default;
l.LAME_Quality = EncoderLAME.LAMEQuality.Quality;
//if(!Un4seen.Bass.AddOn.Tags.BassTags.BASS_TAG_GetFromFile(convertStream, l.TAGs)) Console.WriteLine("no tags");
l.TAGs = Un4seen.Bass.AddOn.Tags.BassTags.BASS_TAG_GetFromFile(t.filename);
if (Bass.BASS_ErrorGetCode() != 0)
{
Console.WriteLine(Bass.BASS_ErrorGetCode());
}
l.Start(null, IntPtr.Zero, false);
byte[] encBuffer = new byte[65536];
while (Bass.BASS_ChannelIsActive(convertStream) == BASSActive.BASS_ACTIVE_PLAYING)
{
// getting sample data will automatically feed the encoder
int len = Bass.BASS_ChannelGetData(convertStream, encBuffer, encBuffer.Length);
convertWorker.ReportProgress((int)((float)Bass.BASS_ChannelGetPosition(convertStream) / (float)Bass.BASS_ChannelGetLength(convertStream) * 100));
if (convertWorker.CancellationPending)
{
break;
}
}
l.Stop(); // finish
Bass.BASS_StreamFree(convertStream);
if (convertWorker.CancellationPending)
{
File.Delete(l.OutputFile);
}
}
else
{
MessageBox.Show("Error converting: " + Bass.BASS_ErrorGetCode() + Environment.NewLine + t.filename);
}
if (convertWorker.CancellationPending)
{
break;
}
files.RemoveAt(0);
convertList.Invoke((MethodInvoker) delegate
{
convertList.Items.RemoveAt(0);
});
convertWorker.ReportProgress(0);
}
}