public bool Load(string path, Guid device)
{
var cext = path.GetExt();
_myWaveOut = new DirectSoundOut(device);
try
{
_myWaveStream = _codecs.First(v => v.Extensions.Contains(cext)).CreateWaveStream(path);
}
catch
{
return false;
}
if (_myWaveStream == null) return false;
if (_myWaveStream.WaveFormat.Channels == 2)
{
_myBalanceSampleProvider = new BalanceSampleProvider(_myWaveStream.ToSampleProvider());
_myVolumeSampleProvider = new VolumeSampleProvider(_myBalanceSampleProvider);
_myBalanceSampleProvider.Pan = (float)Balance;
}
else _myVolumeSampleProvider = new VolumeSampleProvider(_myWaveStream.ToSampleProvider());
_myEqualizer = new Equalizer(_myVolumeSampleProvider, _equalizerBands) { Enabled = _enableEqualizer };
_myWaveOut.Init(_myEqualizer);
_myWaveOut.PlaybackStopped += MyWaveOutOnPlaybackStopped;
_myVolumeSampleProvider.Volume = (float)Volume;
return true;
}
/// <summary>
/// Initialises a new instance of SampleChannel
/// </summary>
/// <param name="waveProvider">Source wave provider, must be PCM or IEEE</param>
/// <param name="forceStereo">force mono inputs to become stereo</param>
public SampleChannel(IWaveProvider waveProvider, bool forceStereo)
{
ISampleProvider sampleProvider = SampleProviderConverters.ConvertWaveProviderIntoSampleProvider(waveProvider);
if (sampleProvider.WaveFormat.Channels == 1 && forceStereo)
{
sampleProvider = new MonoToStereoSampleProvider(sampleProvider);
}
this.waveFormat = sampleProvider.WaveFormat;
// let's put the meter before the volume (useful for drawing waveforms)
this.preVolumeMeter = new MeteringSampleProvider(sampleProvider);
this.volumeProvider = new VolumeSampleProvider(preVolumeMeter);
}
/// <summary>
/// Initialises a new instance of SampleChannel
/// </summary>
/// <param name="waveProvider">Source wave provider, must be PCM or IEEE</param>
/// <param name="forceStereo">force mono inputs to become stereo</param>
public SampleChannel(IWaveProvider waveProvider, bool forceStereo)
{
ISampleProvider sampleProvider = SampleProviderConverters.ConvertWaveProviderIntoSampleProvider(waveProvider);
if (sampleProvider.WaveFormat.Channels == 1 && forceStereo)
{
sampleProvider = new MonoToStereoSampleProvider(sampleProvider);
}
this.waveFormat = sampleProvider.WaveFormat;
// let's put the meter before the volume (useful for drawing waveforms)
this.preVolumeMeter = new MeteringSampleProvider(sampleProvider);
this.volumeProvider = new VolumeSampleProvider(preVolumeMeter);
}
public sourceSatellite(MixingSampleProvider targetMixer)
{
volume = 1f;
sourceState = "OFF";
//Open channel
inputSat = new WaveInEvent();
inputSat.DeviceNumber = devNum;
inputSat.WaveFormat = new WaveFormat();
inputSat.BufferMilliseconds = 400;
//Volume VSP
//inputSatVSP = new VolumeSampleProvider(new Pcm16BitToSampleProvider(new WaveInProvider(inputSat)));
inputSatVSP = new VolumeSampleProvider(new WaveInProvider(inputSat).ToSampleProvider());
//Send to mixer
targetMixer.AddMixerInput(inputSatVSP);
}
/// <summary>
/// Initialises a new instance of SampleChannel
/// </summary>
/// <param name="waveProvider">Source wave provider, must be PCM or IEEE</param>
public SampleChannel(IWaveProvider waveProvider)
{
ISampleProvider sampleProvider;
if (waveProvider.WaveFormat.Encoding == WaveFormatEncoding.Pcm)
{
// go to float
if (waveProvider.WaveFormat.BitsPerSample == 8)
{
sampleProvider = new Pcm8BitToSampleProvider(waveProvider);
}
else if (waveProvider.WaveFormat.BitsPerSample == 16)
{
sampleProvider = new Pcm16BitToSampleProvider(waveProvider);
}
else if (waveProvider.WaveFormat.BitsPerSample == 24)
{
sampleProvider = new Pcm24BitToSampleProvider(waveProvider);
}
else
{
throw new InvalidOperationException("Unsupported operation");
}
}
else if (waveProvider.WaveFormat.Encoding == WaveFormatEncoding.IeeeFloat)
{
sampleProvider = new WaveToSampleProvider(waveProvider);
}
else
{
throw new ArgumentException("Unsupported source encoding");
}
if (sampleProvider.WaveFormat.Channels == 1)
{
sampleProvider = new MonoToStereoSampleProvider(sampleProvider);
}
this.waveFormat = sampleProvider.WaveFormat;
// let's put the meter before the volume (useful for drawing waveforms)
this.preVolumeMeter = new MeteringSampleProvider(sampleProvider);
this.volumeProvider = new VolumeSampleProvider(preVolumeMeter);
}
/// <summary>
/// Initialises a new instance of SampleChannel
/// </summary>
/// <param name="waveProvider">Source wave provider, must be PCM or IEEE</param>
public SampleChannel(IWaveProvider waveProvider)
{
ISampleProvider sampleProvider;
if (waveProvider.WaveFormat.Encoding == WaveFormatEncoding.Pcm)
{
// go to float
if (waveProvider.WaveFormat.BitsPerSample == 8)
{
sampleProvider = new Pcm8BitToSampleProvider(waveProvider);
}
else if (waveProvider.WaveFormat.BitsPerSample == 16)
{
sampleProvider = new Pcm16BitToSampleProvider(waveProvider);
}
else if (waveProvider.WaveFormat.BitsPerSample == 24)
{
sampleProvider = new Pcm24BitToSampleProvider(waveProvider);
}
else
{
throw new InvalidOperationException("Unsupported operation");
}
}
else if (waveProvider.WaveFormat.Encoding == WaveFormatEncoding.IeeeFloat)
{
sampleProvider = new WaveToSampleProvider(waveProvider);
}
else
{
throw new ArgumentException("Unsupported source encoding");
}
if (sampleProvider.WaveFormat.Channels == 1)
{
sampleProvider = new MonoToStereoSampleProvider(sampleProvider);
}
this.waveFormat = sampleProvider.WaveFormat;
// let's put the meter before the volume (useful for drawing waveforms)
this.preVolumeMeter = new MeteringSampleProvider(sampleProvider);
this.volumeProvider = new VolumeSampleProvider(preVolumeMeter);
}
private void _play()
{
/* Audio chain */
// Sampling
_wavesampler = new WaveToSampleProvider(new Wave16ToFloatProvider(_wavebuffer));
// Fading component
_fade = new FadeInOutSampleProvider(_wavesampler);
_fade.BeginFadeIn(1500);
// Notifying component
var _notify = new NotifyingSampleProvider(_fade);
_notify.Sample += new EventHandler<SampleEventArgs>(_notify_Sample);
// Gain adjustment component
_volume = new VolumeSampleProvider(_notify);
_volume.Volume = this.Volume;
// Output
Output.Init(new SampleToWaveProvider16(_volume));
/* Playback loop */
do
{
if (_cancel_play.IsCancellationRequested)
{
Console.WriteLine("[Playback thread] Cancellation requested.");
// Fade out and stop
Console.WriteLine("[Playback thread] Fading out and stopping...");
_fade.BeginFadeOut(500);
Thread.Sleep(500);
Output.Stop();
Console.WriteLine("[Playback thread] Output stopped.");
this.Status = StreamStatus.Stopped;
Console.WriteLine("[Playback thread] Acknowledged as status.");
//_cancel_play_token.ThrowIfCancellationRequested();
//Console.WriteLine("[Playback thread] WARNING: Cancellation token is not cleanly set!");
return;
}
if (Output.PlaybackState != PlaybackState.Playing && _wavebuffer.BufferedDuration.TotalMilliseconds > 2750)
{
// Buffer is filled enough
Console.WriteLine("[Playback thread] Buffer is okay now, start playback!");
this.Status = StreamStatus.Playing;
Output.Play();
}
else if (Output.PlaybackState == PlaybackState.Playing && _wavebuffer.BufferedDuration.TotalMilliseconds < 2250)
{
// Buffer is underrunning
Console.WriteLine("[Playback thread] Buffer is underrunning, pausing playback...");
this.Status = StreamStatus.Buffering;
Output.Pause();
}
if (_bufferThread.Exception != null)
{
Console.WriteLine("[Playback thread] Buffering thread is faulted, aborting playback");
throw new Exception("Buffering thread faulted, aborting playback");
}
Thread.Sleep(100);
}
while (true);
}
public void Unload()
{
if (_myWaveOut != null)
{
_myWaveOut.PlaybackStopped -= MyWaveOutOnPlaybackStopped;
_myWaveOut.Stop();
}
if (_myWaveStream != null)
{
_myWaveStream.Dispose();
_myWaveStream = null;
}
_myBalanceSampleProvider = null;
_myVolumeSampleProvider = null;
_myEqualizer = null;
}
/// <summary>
/// Changes the volume.
/// </summary>
/// <param name="inputFile">The input file.</param>
/// <param name="outputFile">The output file.</param>
/// <param name="level">The level.</param>
/// <returns>
/// Path of changed file
/// </returns>
public static string ChangeVolume(string inputFile, string outputFile, double level)
{
using (var reader = new AudioFileReader(inputFile))
{
var provider = new VolumeSampleProvider(reader)
{
Volume = Convert.ToSingle(level)
};
WaveFileWriter.CreateWaveFile16(outputFile, provider);
}
return outputFile;
}
/// <summary>
/// Initializes a new instance of AudioFileReader
/// </summary>
/// <param name="fileName">The file to open</param>
public AudioFileReaderVVVV(string fileName)
{
FLockObject = new object();
this.FFileName = fileName;
CreateReaderStream(fileName);
FSourceBytesPerSample = (FReaderStream.WaveFormat.BitsPerSample / 8) * FReaderStream.WaveFormat.Channels;
this.FSampleChannel = new VolumeSampleProvider(FReaderStream.ToSampleProvider());
FDestBytesPerSample = 4*FSampleChannel.WaveFormat.Channels;
FLength = SourceToDest(FReaderStream.Length);
}
public static void SaveSong(IEnumerable<Track> tracks, string filePath)
{
var waveFormat = WaveFormat.CreateIeeeFloatWaveFormat(48000, 1);
MediaBankBase bank = new FenderStratCleanB(waveFormat);
MediaBankBase bassBank = new RockdaleBassBridge(waveFormat);
var mixer = new MixingSampleProvider(waveFormat);
foreach(var track in tracks)
{
var trackSampleProvider =
new TrackSampleProvider(track.Patch == MediaPatch.CleanGuitar ? bank : bassBank, track);
var resultingSampleProvider = new VolumeSampleProvider(trackSampleProvider)
{
Volume = 0.7f
};
mixer.AddMixerInput(resultingSampleProvider);
}
WaveFileWriter.CreateWaveFile(filePath, new SampleToWaveProvider(mixer));
}
public TrackSampleProvider()
{
mix = new MixingSampleProvider(WaveFormat.CreateIeeeFloatWaveFormat(44100, 2));
//pan = new PanningSampleProvider(mix);
volume = new VolumeSampleProvider(mix);
}
public static string GenerateAudio(ControllerContext context, string captcha)
{
var mixed = Path.GetTempFileName();
var back = Path.GetTempFileName();
var main = Path.GetTempFileName();
//gera audio principal
List<String> chars = new List<string>();
foreach (var item in captcha)
{
chars.Add(context.HttpContext.Server.MapPath("~/Content/Audios/" + item.ToString() + ".wav"));
}
Concatenate(main, chars, 1000);
chars = new List<string>();
//gera audio aleatorio para sujeira
for (int i = 0; i < 4; i++)
{
var randtext = Captcha.GenerateRandomCode(i);
foreach (var item in randtext)
{
chars.Add(context.HttpContext.Server.MapPath("~/Content/Audios/" + item.ToString() + ".wav"));
}
}
Concatenate(mixed, chars, 0, true);
ReverseWaveFile(mixed, back);
using (var reader1 = new WaveFileReader(main))
using (var reader2 = new WaveFileReader(back))
{
var volumeProvider = new VolumeSampleProvider(reader2.ToSampleProvider());
volumeProvider.Volume = 0.15f;
var inputs = new List<ISampleProvider>() {
reader1.ToSampleProvider(),
volumeProvider
};
var mixer = new MixingSampleProvider(inputs);
WaveFileWriter.CreateWaveFile16(mixed, mixer);
}
var mp3file = Path.GetTempFileName();
WavToMp3(mixed, mp3file, context);
return mp3file;
}
