private int prepareStream(Stream data, bool quick)
{
//encapsulate incoming stream with async buffer if it isn't already.
dataStream = data as AsyncBufferStream ?? new AsyncBufferStream(data, quick ? 8 : -1);
fileCallbacks = new FileCallbacks(new DataStreamFileProcedures(dataStream));
BassFlags flags = Preview ? 0 : BassFlags.Decode | BassFlags.Prescan;
int stream = Bass.CreateStream(StreamSystem.NoBuffer, flags, fileCallbacks.Callbacks, fileCallbacks.Handle);
if (!Preview)
{
// We assign the BassFlags.Decode streams to the device "bass_nodevice" to prevent them from getting
// cleaned up during a Bass.Free call. This is necessary for seamless switching between audio devices.
// Further, we provide the flag BassFlags.FxFreeSource such that freeing the stream also frees
// all parent decoding streams.
const int bass_nodevice = 0x20000;
Bass.ChannelSetDevice(stream, bass_nodevice);
tempoAdjustStream = BassFx.TempoCreate(stream, BassFlags.Decode | BassFlags.FxFreeSource);
Bass.ChannelSetDevice(tempoAdjustStream, bass_nodevice);
stream = BassFx.ReverseCreate(tempoAdjustStream, 5f, BassFlags.Default | BassFlags.FxFreeSource);
Bass.ChannelSetAttribute(stream, ChannelAttribute.TempoUseQuickAlgorithm, 1);
Bass.ChannelSetAttribute(stream, ChannelAttribute.TempoOverlapMilliseconds, 4);
Bass.ChannelSetAttribute(stream, ChannelAttribute.TempoSequenceMilliseconds, 30);
}
return(stream);
}
private void LoadSong()
{
BassFlags Flags = Preview ? 0 : (BassFlags.Decode | BassFlags.Prescan);
// Create a new stream
CleanStream = Bass.CreateStream(AudioFile.Content, 0, AudioFile.Size, Flags);
if (!Preview)
{
Stream = BassFx.TempoCreate(CleanStream, BassFlags.Decode | BassFlags.FxFreeSource);
TempoStream = Stream;
Stream = BassFx.ReverseCreate(Stream, 5f, BassFlags.FxFreeSource);
Bass.ChannelSetAttribute(Stream, ChannelAttribute.TempoUseQuickAlgorithm, 1);
Bass.ChannelSetAttribute(Stream, ChannelAttribute.TempoOverlapMilliseconds, 4);
Bass.ChannelSetAttribute(Stream, ChannelAttribute.TempoSequenceMilliseconds, 30);
}
else
{
Stream = CleanStream;
}
Length = (Bass.ChannelBytes2Seconds(Stream, Bass.ChannelGetLength(Stream)) * 1000);
Bass.ChannelGetAttribute(Stream, ChannelAttribute.Frequency, out InitialFrequency);
SetDirection(false);
}
public AudioTrackBass(Stream data, bool quick = false)
{
Preview = quick;
BassFlags flags = Preview ? 0 : (BassFlags.Decode | BassFlags.Prescan);
if (data == null)
throw new ArgumentNullException(@"Data couldn't be loaded!");
//encapsulate incoming stream with async buffer if it isn't already.
dataStream = data as AsyncBufferStream ?? new AsyncBufferStream(data, quick ? 8 : -1);
procs = new DataStreamFileProcedures(dataStream);
audioStreamPrefilter = Bass.CreateStream(StreamSystem.NoBuffer, flags, procs.BassProcedures, IntPtr.Zero);
if (Preview)
activeStream = audioStreamPrefilter;
else
{
activeStream = BassFx.TempoCreate(audioStreamPrefilter, BassFlags.Decode);
activeStream = BassFx.ReverseCreate(activeStream, 5f, BassFlags.Default);
Bass.ChannelSetAttribute(activeStream, ChannelAttribute.TempoUseQuickAlgorithm, 1);
Bass.ChannelSetAttribute(activeStream, ChannelAttribute.TempoOverlapMilliseconds, 4);
Bass.ChannelSetAttribute(activeStream, ChannelAttribute.TempoSequenceMilliseconds, 30);
}
Length = (Bass.ChannelBytes2Seconds(activeStream, Bass.ChannelGetLength(activeStream)) * 1000);
Bass.ChannelGetAttribute(activeStream, ChannelAttribute.Frequency, out initialFrequency);
}
public TempoDecoder(Decoder decoder, Resolution BufferKind = Resolution.Short)
: base(BufferKind)
{
this.decoder = decoder;
Handle = BassFx.TempoCreate(decoder.Handle, BassFlags.Float | BufferKind.ToBassFlag());
}
/// <summary>
/// Constructs a new <see cref="TrackBass"/> from provided audio data.
/// </summary>
/// <param name="data">The sample data stream.</param>
/// <param name="quick">If true, the track will not be fully loaded, and should only be used for preview purposes. Defaults to false.</param>
public TrackBass(Stream data, bool quick = false)
{
EnqueueAction(() =>
{
Preview = quick;
if (data == null)
{
throw new ArgumentNullException(nameof(data));
}
//encapsulate incoming stream with async buffer if it isn't already.
dataStream = data as AsyncBufferStream ?? new AsyncBufferStream(data, quick ? 8 : -1);
procedures = CreateDataStreamFileProcedures(dataStream);
if (!RuntimeInfo.SupportsIL)
{
pinnedProcedures = GCHandle.Alloc(procedures, GCHandleType.Pinned);
}
BassFlags flags = Preview ? 0 : BassFlags.Decode | BassFlags.Prescan | BassFlags.Float;
activeStream = Bass.CreateStream(StreamSystem.NoBuffer, flags, procedures.BassProcedures, RuntimeInfo.SupportsIL ? IntPtr.Zero : GCHandle.ToIntPtr(pinnedProcedures));
if (!Preview)
{
// We assign the BassFlags.Decode streams to the device "bass_nodevice" to prevent them from getting
// cleaned up during a Bass.Free call. This is necessary for seamless switching between audio devices.
// Further, we provide the flag BassFlags.FxFreeSource such that freeing the activeStream also frees
// all parent decoding streams.
const int bass_nodevice = 0x20000;
Bass.ChannelSetDevice(activeStream, bass_nodevice);
tempoAdjustStream = BassFx.TempoCreate(activeStream, BassFlags.Decode | BassFlags.FxFreeSource);
Bass.ChannelSetDevice(activeStream, bass_nodevice);
activeStream = BassFx.ReverseCreate(tempoAdjustStream, 5f, BassFlags.Default | BassFlags.FxFreeSource);
Bass.ChannelSetAttribute(activeStream, ChannelAttribute.TempoUseQuickAlgorithm, 1);
Bass.ChannelSetAttribute(activeStream, ChannelAttribute.TempoOverlapMilliseconds, 4);
Bass.ChannelSetAttribute(activeStream, ChannelAttribute.TempoSequenceMilliseconds, 30);
}
// will be -1 in case of an error
double seconds = Bass.ChannelBytes2Seconds(activeStream, Bass.ChannelGetLength(activeStream));
bool success = seconds >= 0;
if (success)
{
Length = seconds * 1000;
Bass.ChannelGetAttribute(activeStream, ChannelAttribute.Frequency, out float frequency);
initialFrequency = frequency;
bitrate = (int)Bass.ChannelGetAttribute(activeStream, ChannelAttribute.Bitrate);
isLoaded = true;
}
});
InvalidateState();
}
private void LoadFile(string filename)
{
if (filename != string.Empty)
{
if (Bass.ChannelIsActive(fxStream) == PlaybackState.Playing)
{
StopPlayback();
}
Bass.StreamFree(audioStream);
Bass.StreamFree(fxStream);
audioStream = Bass.CreateStream(filename, 0, 0, BassFlags.Decode | BassFlags.Prescan);
audioLength = Bass.ChannelGetLength(audioStream);
if (audioStream != 0 && Bass.LastError == Errors.OK)
{
fxStream = BassFx.TempoCreate(audioStream, BassFlags.FxFreeSource);
if (fxStream != 0 && Bass.LastError == Errors.OK)
{
bassboost = new PeakEQ(fxStream, 0, 3);
bassboost.UpdateBand(bassboost.AddBand(30), bassAmount.Value * 2);
bassboost.UpdateBand(bassboost.AddBand(50), bassAmount.Value);
playButton.IsEnabled = true;
saveButton.IsEnabled = true;
return;
}
}
MessageBox.Show(this, "Чот нихуя");
}
}
private int prepareStream(Stream data, bool quick)
{
switch (data)
{
case MemoryStream _:
case UnmanagedMemoryStream _:
case AsyncBufferStream _:
// Buffering memory stream is definitely unworthy.
dataStream = data;
break;
default:
// It would be most likely a FileStream.
// Consider to use RandomAccess to optimise in favor of FileStream in .NET 6
dataStream = new AsyncBufferStream(data, quick ? 8 : -1);
break;
}
fileCallbacks = new FileCallbacks(new DataStreamFileProcedures(dataStream));
BassFlags flags = (Preview ? 0 : BassFlags.Decode | BassFlags.Prescan);
// While this shouldn't cause issues, we've had a small subset of users reporting issues on windows.
// To keep things working let's only apply to other platforms until we know more.
// See https://github.com/ppy/osu/issues/18652.
if (RuntimeInfo.OS != RuntimeInfo.Platform.Windows)
{
flags |= BassFlags.AsyncFile;
}
int stream = Bass.CreateStream(StreamSystem.NoBuffer, flags, fileCallbacks.Callbacks, fileCallbacks.Handle);
bitrate = (int)Math.Round(Bass.ChannelGetAttribute(stream, ChannelAttribute.Bitrate));
if (!Preview)
{
// We assign the BassFlags.Decode streams to the device "bass_nodevice" to prevent them from getting
// cleaned up during a Bass.Free call. This is necessary for seamless switching between audio devices.
// Further, we provide the flag BassFlags.FxFreeSource such that freeing the stream also frees
// all parent decoding streams.
const int bass_nodevice = 0x20000;
Bass.ChannelSetDevice(stream, bass_nodevice);
tempoAdjustStream = BassFx.TempoCreate(stream, BassFlags.Decode | BassFlags.FxFreeSource);
Bass.ChannelSetDevice(tempoAdjustStream, bass_nodevice);
stream = BassFx.ReverseCreate(tempoAdjustStream, 5f, BassFlags.Default | BassFlags.FxFreeSource | BassFlags.Decode);
Bass.ChannelSetAttribute(stream, ChannelAttribute.TempoUseQuickAlgorithm, 1);
Bass.ChannelSetAttribute(stream, ChannelAttribute.TempoOverlapMilliseconds, 4);
Bass.ChannelSetAttribute(stream, ChannelAttribute.TempoSequenceMilliseconds, 30);
}
return(stream);
}
public void OpenFile(string filePath)
{
Unload();
streamHandle = Bass.CreateStream(filePath, Flags: BassFlags.Decode | BassFlags.Prescan);
activeHandle = BassFx.TempoCreate(streamHandle, BassFlags.FxFreeSource);
syncHandle = Bass.ChannelSetSync(activeHandle, SyncFlags.End, 0, SyncProcedureEndStream);
Bass.ChannelSetAttribute(activeHandle, ChannelAttribute.TempoUseQuickAlgorithm, 1);
ApplyEffects();
status = PlayerStatus.FileLoaded;
}
public override void Connect(IBassStreamComponent previous)
{
this.Rate = previous.Rate;
this.Channels = previous.Channels;
this.ChannelHandle = BassFx.TempoCreate(previous.ChannelHandle, previous.Flags);
if (this.ChannelHandle == 0)
{
BassUtils.Throw();
}
if (this.IsActive)
{
this.Update();
}
}
public TrackBass(Stream data, bool quick = false)
{
PendingActions.Enqueue(() =>
{
Preview = quick;
if (data == null)
{
throw new ArgumentNullException(nameof(data));
}
//encapsulate incoming stream with async buffer if it isn't already.
dataStream = data as AsyncBufferStream ?? new AsyncBufferStream(data, quick ? 8 : -1);
var procs = new DataStreamFileProcedures(dataStream);
BassFlags flags = Preview ? 0 : BassFlags.Decode | BassFlags.Prescan;
activeStream = Bass.CreateStream(StreamSystem.NoBuffer, flags, procs.BassProcedures, IntPtr.Zero);
if (!Preview)
{
// We assign the BassFlags.Decode streams to the device "bass_nodevice" to prevent them from getting
// cleaned up during a Bass.Free call. This is necessary for seamless switching between audio devices.
// Further, we provide the flag BassFlags.FxFreeSource such that freeing the activeStream also frees
// all parent decoding streams.
const int bass_nodevice = 0x20000;
Bass.ChannelSetDevice(activeStream, bass_nodevice);
tempoAdjustStream = BassFx.TempoCreate(activeStream, BassFlags.Decode | BassFlags.FxFreeSource);
Bass.ChannelSetDevice(activeStream, bass_nodevice);
activeStream = BassFx.ReverseCreate(tempoAdjustStream, 5f, BassFlags.Default | BassFlags.FxFreeSource);
Bass.ChannelSetAttribute(activeStream, ChannelAttribute.TempoUseQuickAlgorithm, 1);
Bass.ChannelSetAttribute(activeStream, ChannelAttribute.TempoOverlapMilliseconds, 4);
Bass.ChannelSetAttribute(activeStream, ChannelAttribute.TempoSequenceMilliseconds, 30);
}
Length = Bass.ChannelBytes2Seconds(activeStream, Bass.ChannelGetLength(activeStream)) * 1000;
float frequency;
Bass.ChannelGetAttribute(activeStream, ChannelAttribute.Frequency, out frequency);
initialFrequency = frequency;
bitrate = (int)Bass.ChannelGetAttribute(activeStream, ChannelAttribute.Bitrate);
isLoaded = true;
OnLoaded?.Invoke(this);
});
InvalidateState();
}
internal AudioStream(AudioManager manager, string path, ResourceContainer resourceContainer) : base(manager)
{
this.path = path;
decodeStream = Bass.CreateStream(path, 0, 0, BassFlags.Decode | BassFlags.Prescan);
if (decodeStream == 0)
{
Trace.WriteLine($"Failed to load audio stream ({path}): {Bass.LastError}");
return;
}
stream = BassFx.TempoCreate(decodeStream, BassFlags.Default);
Bass.ChannelSetAttribute(stream, ChannelAttribute.TempoUseQuickAlgorithm, 1);
Bass.ChannelSetAttribute(stream, ChannelAttribute.TempoOverlapMilliseconds, 4);
Bass.ChannelSetAttribute(stream, ChannelAttribute.TempoSequenceMilliseconds, 30);
Channel = stream;
}
/// <summary>
/// Loads the File Channel with FX.
/// </summary>
protected override int OnLoad(string FileName)
{
var h = Bass.CreateStream(FileName, Flags: BassFlags.Decode);
if (h == 0)
{
return(0);
}
h = BassFx.TempoCreate(h, BassFlags.Decode | BassFlags.FxFreeSource);
if (h == 0)
{
return(0);
}
_tempoHandle = h;
return(BassFx.ReverseCreate(h, 2, BassFlags.FxFreeSource));
}
/// <summary>
/// Constructs a new <see cref="TrackBass"/> from provided audio data.
/// </summary>
/// <param name="data">The sample data stream.</param>
/// <param name="quick">If true, the track will not be fully loaded, and should only be used for preview purposes. Defaults to false.</param>
public TrackBass(Stream data, bool quick = false)
{
if (data == null)
{
throw new ArgumentNullException(nameof(data));
}
// todo: support this internally to match the underlying Track implementation (which can support this).
const float tempo_minimum_supported = 0.05f;
AggregateTempo.ValueChanged += t =>
{
if (t.NewValue < tempo_minimum_supported)
{
throw new ArgumentException($"{nameof(TrackBass)} does not support {nameof(Tempo)} specifications below {tempo_minimum_supported}. Use {nameof(Frequency)} instead.");
}
};
EnqueueAction(() =>
{
Preview = quick;
//encapsulate incoming stream with async buffer if it isn't already.
dataStream = data as AsyncBufferStream ?? new AsyncBufferStream(data, quick ? 8 : -1);
fileCallbacks = new FileCallbacks(new DataStreamFileProcedures(dataStream));
BassFlags flags = Preview ? 0 : BassFlags.Decode | BassFlags.Prescan;
activeStream = Bass.CreateStream(StreamSystem.NoBuffer, flags, fileCallbacks.Callbacks, fileCallbacks.Handle);
if (!Preview)
{
// We assign the BassFlags.Decode streams to the device "bass_nodevice" to prevent them from getting
// cleaned up during a Bass.Free call. This is necessary for seamless switching between audio devices.
// Further, we provide the flag BassFlags.FxFreeSource such that freeing the activeStream also frees
// all parent decoding streams.
const int bass_nodevice = 0x20000;
Bass.ChannelSetDevice(activeStream, bass_nodevice);
tempoAdjustStream = BassFx.TempoCreate(activeStream, BassFlags.Decode | BassFlags.FxFreeSource);
Bass.ChannelSetDevice(tempoAdjustStream, bass_nodevice);
activeStream = BassFx.ReverseCreate(tempoAdjustStream, 5f, BassFlags.Default | BassFlags.FxFreeSource);
Bass.ChannelSetAttribute(activeStream, ChannelAttribute.TempoUseQuickAlgorithm, 1);
Bass.ChannelSetAttribute(activeStream, ChannelAttribute.TempoOverlapMilliseconds, 4);
Bass.ChannelSetAttribute(activeStream, ChannelAttribute.TempoSequenceMilliseconds, 30);
}
// will be -1 in case of an error
double seconds = Bass.ChannelBytes2Seconds(activeStream, byteLength = Bass.ChannelGetLength(activeStream));
bool success = seconds >= 0;
if (success)
{
Length = seconds * 1000;
// Bass does not allow seeking to the end of the track, so the last available position is 1 sample before.
lastSeekablePosition = Bass.ChannelBytes2Seconds(activeStream, byteLength - BYTES_PER_SAMPLE) * 1000;
Bass.ChannelGetAttribute(activeStream, ChannelAttribute.Frequency, out float frequency);
initialFrequency = frequency;
bitrate = (int)Bass.ChannelGetAttribute(activeStream, ChannelAttribute.Bitrate);
stopCallback = new SyncCallback((a, b, c, d) => RaiseFailed());
endCallback = new SyncCallback((a, b, c, d) =>
{
if (!Looping)
{
RaiseCompleted();
}
});
Bass.ChannelSetSync(activeStream, SyncFlags.Stop, 0, stopCallback.Callback, stopCallback.Handle);
Bass.ChannelSetSync(activeStream, SyncFlags.End, 0, endCallback.Callback, endCallback.Handle);
isLoaded = true;
}
});
InvalidateState();
}
void OpenFile()
{
if (!_ofd.ShowDialog().Value)
{
return;
}
// free decode bpm stream and resources
BassFx.BPMFree(_bpmchan);
// free tempo, stream, music & bpm/beat callbacks
Bass.StreamFree(_chan);
Bass.MusicFree(_chan);
// create decode channel
_chan = Bass.CreateStream(_ofd.FileName, 0, 0, BassFlags.Decode);
if (_chan == 0)
{
_chan = Bass.MusicLoad(_ofd.FileName, 0, 0, BassFlags.MusicRamp | BassFlags.Prescan | BassFlags.Decode, 0);
}
if (_chan == 0)
{
// not a WAV/MP3 or MOD
Status = "Click Here to Open and Play a File...";
MessageBox.Show("Selected file couldn't be loaded!");
return;
}
// get channel info
Bass.ChannelGetInfo(_chan, out _info);
// create a new stream - decoded & resampled :)
if ((_chan = BassFx.TempoCreate(_chan, BassFlags.Loop | BassFlags.FxFreeSource)) == 0)
{
Status = "Click Here to Open and Play a File...";
MessageBox.Show("Couldn't create a resampled stream!");
Bass.StreamFree(_chan);
Bass.MusicFree(_chan);
return;
}
// update the button to show the loaded file name (without path)
Status = Path.GetFileName(_ofd.FileName);
SampleRate = _info.Frequency;
OnPropertyChanged(nameof(MinSampleRate));
OnPropertyChanged(nameof(MaxSampleRate));
// update tempo view
Tempo = 0;
// set the callback bpm and beat
IsBpmPeriod = _isBpmPeriod;
IsBeatPosition = _isBeatPosition;
// play new created stream
Bass.ChannelPlay(_chan);
// create bpmChan stream and get bpm value for BpmPeriod seconds from current position
var pos = Bass.ChannelBytes2Seconds(_chan, Bass.ChannelGetPosition(_chan));
var maxpos = Bass.ChannelBytes2Seconds(_chan, Bass.ChannelGetLength(_chan));
DecodingBPM(true, pos, pos + BpmPeriod >= maxpos ? maxpos - 1 : pos + BpmPeriod, _ofd.FileName);
}
/// <summary>
/// Constructs a new <see cref="TrackBass"/> from provided audio data.
/// </summary>
/// <param name="data">The sample data stream.</param>
/// <param name="quick">If true, the track will not be fully loaded, and should only be used for preview purposes. Defaults to false.</param>
public TrackBass(Stream data, bool quick = false)
{
EnqueueAction(() =>
{
Preview = quick;
if (data == null)
{
throw new ArgumentNullException(nameof(data));
}
//encapsulate incoming stream with async buffer if it isn't already.
dataStream = data as AsyncBufferStream ?? new AsyncBufferStream(data, quick ? 8 : -1);
fileCallbacks = new FileCallbacks(new DataStreamFileProcedures(dataStream));
BassFlags flags = Preview ? 0 : BassFlags.Decode | BassFlags.Prescan;
activeStream = Bass.CreateStream(StreamSystem.NoBuffer, flags, fileCallbacks.Callbacks, fileCallbacks.Handle);
if (!Preview)
{
// We assign the BassFlags.Decode streams to the device "bass_nodevice" to prevent them from getting
// cleaned up during a Bass.Free call. This is necessary for seamless switching between audio devices.
// Further, we provide the flag BassFlags.FxFreeSource such that freeing the activeStream also frees
// all parent decoding streams.
const int bass_nodevice = 0x20000;
Bass.ChannelSetDevice(activeStream, bass_nodevice);
tempoAdjustStream = BassFx.TempoCreate(activeStream, BassFlags.Decode | BassFlags.FxFreeSource);
Bass.ChannelSetDevice(activeStream, bass_nodevice);
activeStream = BassFx.ReverseCreate(tempoAdjustStream, 5f, BassFlags.Default | BassFlags.FxFreeSource);
Bass.ChannelSetAttribute(activeStream, ChannelAttribute.TempoUseQuickAlgorithm, 1);
Bass.ChannelSetAttribute(activeStream, ChannelAttribute.TempoOverlapMilliseconds, 4);
Bass.ChannelSetAttribute(activeStream, ChannelAttribute.TempoSequenceMilliseconds, 30);
}
// will be -1 in case of an error
double seconds = Bass.ChannelBytes2Seconds(activeStream, Bass.ChannelGetLength(activeStream));
bool success = seconds >= 0;
if (success)
{
Length = seconds * 1000;
Bass.ChannelGetAttribute(activeStream, ChannelAttribute.Frequency, out float frequency);
initialFrequency = frequency;
bitrate = (int)Bass.ChannelGetAttribute(activeStream, ChannelAttribute.Bitrate);
stopCallback = new SyncCallback((a, b, c, d) => RaiseFailed());
endCallback = new SyncCallback((a, b, c, d) =>
{
if (!Looping)
{
RaiseCompleted();
}
});
Bass.ChannelSetSync(activeStream, SyncFlags.Stop, 0, stopCallback.Callback, stopCallback.Handle);
Bass.ChannelSetSync(activeStream, SyncFlags.End, 0, endCallback.Callback, endCallback.Handle);
isLoaded = true;
}
});
InvalidateState();
}
