/// <summary>
/// Start Recording.
/// </summary>
public void Start()
{
lock (_syncLock)
{
foreach (var loop in _loopback.Values.Where(M => M.RecordingHandle != 0))
{
Bass.ChannelPlay(loop.SilenceStreamHandle);
Bass.ChannelPlay(loop.RecordingHandle);
}
foreach (var rec in _recording.Values.Where(M => M.RecordingHandle != 0))
{
Bass.ChannelPlay(rec.RecordingHandle);
}
Bass.ChannelPlay(_mixer);
if (!_fillerAdded)
{
// Add Filler only after mixer has started
BassMix.MixerAddChannel(_mixer, _filler, BassFlags.Default);
_fillerAdded = true;
}
_running = true;
}
}
internal override void ConnectFile(clsMP3Bass mp3bass)
{
mp3bass.StreamHandle = CheckHandleHard(Bass.CreateStream(
mp3bass.FilePath, 0, 0, BassFlags.Decode | BassFlags.Prescan));
CheckOKHard(BassMix.MixerAddChannel(
MixerStream, mp3bass.StreamHandle, BassFlags.Default));
CheckOKHard(Bass.ChannelStop(mp3bass.StreamHandle));
}
internal override void ConnectMidiDev(clsBassOutMidi bassoutmidi)
{
bassoutmidi.MidiStream = CheckHandleHard(BassMidi.CreateStream(
bassoutmidi.NumMidiChans, BassFlags.Decode | BassFlags.Float, 1));
bassoutmidi.InitStream();
CheckOKHard(BassMix.MixerAddChannel(
MixerStream, bassoutmidi.MidiStream, BassFlags.Default));
}
/// <summary>
/// Adds a Bass Channel to Wasapi Output Mixer.
/// </summary>
/// <returns>True on Success</returns>
public bool AddOutputSource(int Channel)
{
ChannelInfo info;
if (!Bass.ChannelGetInfo(Channel, out info) ||
(!info.IsDecodingChannel && info.ChannelType != ChannelType.Recording))
{
return(false);
}
return(BassMix.MixerAddChannel(_mixerStream, Channel, BassFlags.Default));
}
public override void Connect(IBassStreamComponent previous)
{
Logger.Write(this, LogLevel.Debug, "Creating BASS MIX stream with rate {0} and {1} channels.", this.Rate, this.Channels);
this.ChannelHandle = BassMix.CreateMixerStream(this.Rate, this.Channels, this.Flags);
if (this.ChannelHandle == 0)
{
BassUtils.Throw();
}
Logger.Write(this, LogLevel.Debug, "Adding stream to the mixer: {0}", previous.ChannelHandle);
BassUtils.OK(BassMix.MixerAddChannel(this.ChannelHandle, previous.ChannelHandle, BassFlags.Default | BassFlags.MixerBuffer));
this.MixerChannelHandles.Add(previous.ChannelHandle);
}
void AddDevice(IIsActive <BassItem> Device)
{
lock (_syncLock)
{
var id = Device.Item.Id;
if (_devices[id].RecordingHandle != 0)
{
return;
}
Bass.RecordInit(id);
var devInfo = Bass.RecordGetDeviceInfo(id);
if (devInfo.IsLoopback)
{
var playbackDevice = FindPlaybackDevice(devInfo);
if (playbackDevice != -1)
{
Bass.Init(playbackDevice);
Bass.CurrentDevice = playbackDevice;
var silence = Bass.CreateStream(44100, 2, BassFlags.Default, Extensions.SilenceStreamProcedure);
Bass.ChannelSetAttribute(silence, ChannelAttribute.Volume, 0);
_devices[id].SilenceHandle = silence;
}
}
Bass.CurrentRecordingDevice = id;
var info = Bass.RecordingInfo;
var handle = Bass.RecordStart(info.Frequency, info.Channels, BassFlags.RecordPause, null);
_devices[id].RecordingHandle = handle;
BassMix.MixerAddChannel(_mixer, handle, BassFlags.MixerDownMix | BassFlags.MixerLimit);
if (_running)
{
Bass.ChannelPlay(handle);
}
}
}
public void AddChannelToBassMix(IBassAudioChannel channel)
{
Debug.Assert(Handle != 0);
Debug.Assert(channel.Handle != 0);
BassFlags flags = BassFlags.MixerChanBuffer | BassFlags.MixerChanNoRampin;
if (channel.MixerChannelPaused)
{
flags |= BassFlags.MixerChanPause;
}
if (BassMix.MixerAddChannel(Handle, channel.Handle, flags))
{
activeChannels.Add(channel);
}
}
/// <summary>
/// Creates a new instance of <see cref="MixedAudioProvider"/>.
/// </summary>
/// <param name="RecordingDevice">Index of Recording Device. null = No Microphone Recording.</param>
/// <param name="LoopbackDevice">Index of Loopback Device. null = No Loopback Recording.</param>
/// <exception cref="InvalidOperationException">Can't Record when both <paramref name="LoopbackDevice"/> and <paramref name="RecordingDevice"/> are null.</exception>
public MixedAudioProvider(int?RecordingDevice, int?LoopbackDevice)
{
if (RecordingDevice == null && LoopbackDevice == null)
{
throw new InvalidOperationException("Nothing to Record.");
}
_mixer = BassMix.CreateMixerStream(44100, 2, BassFlags.Default);
if (RecordingDevice != null)
{
Bass.RecordInit(RecordingDevice.Value);
Bass.CurrentRecordingDevice = RecordingDevice.Value;
var info = Bass.RecordingInfo;
_recording = Bass.RecordStart(info.Frequency, info.Channels, BassFlags.Float | BassFlags.RecordPause, null);
BassMix.MixerAddChannel(_mixer, _recording, BassFlags.MixerDownMix);
}
if (LoopbackDevice != null)
{
var playbackDevice = FindPlaybackDevice(LoopbackDevice.Value);
Bass.Init(playbackDevice);
Bass.CurrentDevice = playbackDevice;
_silence = Bass.CreateStream(44100, 2, BassFlags.Float, ManagedBass.Extensions.SilenceStreamProcedure);
Bass.RecordInit(LoopbackDevice.Value);
Bass.CurrentRecordingDevice = LoopbackDevice.Value;
var info = Bass.RecordingInfo;
_loopback = Bass.RecordStart(info.Frequency, info.Channels, BassFlags.Float | BassFlags.RecordPause, null);
BassMix.MixerAddChannel(_mixer, _loopback, BassFlags.MixerDownMix);
}
// mute the mixer
Bass.ChannelSetAttribute(_mixer, ChannelAttribute.Volume, 0);
Bass.ChannelSetDSP(_mixer, Procedure);
}
/// <summary>
/// Adds a channel to the native BASS mix.
/// </summary>
public void AddChannelToBassMix(IBassAudioChannel channel)
{
// TODO: This fails and throws unobserved exceptions in github CI runs on macOS.
// Needs further investigation at some point as something is definitely not right.
// Debug.Assert(Handle != 0);
// Debug.Assert(channel.Handle != 0);
BassFlags flags = BassFlags.MixerChanBuffer | BassFlags.MixerChanNoRampin;
if (channel.MixerChannelPaused)
{
flags |= BassFlags.MixerChanPause;
}
if (BassMix.MixerAddChannel(Handle, channel.Handle, flags))
{
activeChannels.Add(channel);
}
}
public override void Connect(IBassStreamComponent previous)
{
this.ConfigureWASAPI(previous);
if (this.ShouldCreateMixer(previous))
{
Logger.Write(this, LogLevel.Debug, "Creating BASS MIX stream with rate {0} and {1} channels.", this.Rate, this.Channels);
this.ChannelHandle = BassMix.CreateMixerStream(this.Rate, this.Channels, this.Flags);
if (this.ChannelHandle == 0)
{
BassUtils.Throw();
}
Logger.Write(this, LogLevel.Debug, "Adding stream to the mixer: {0}", previous.ChannelHandle);
BassUtils.OK(BassMix.MixerAddChannel(this.ChannelHandle, previous.ChannelHandle, BassFlags.Default | BassFlags.MixerBuffer));
BassUtils.OK(BassWasapiHandler.StreamSet(this.ChannelHandle));
this.MixerChannelHandles.Add(previous.ChannelHandle);
}
else
{
Logger.Write(this, LogLevel.Debug, "The stream properties match the device, playing directly.");
BassUtils.OK(BassWasapiHandler.StreamSet(previous.ChannelHandle));
}
}
/// <summary>
/// 切鸡鸡
/// </summary>
/// <param name="dir_path"></param>
/// <param name="specific_bms_file_name">可选,钦定文件夹下某个bms谱面文件，如果不钦定就随机选取一个</param>
/// <param name="start_time">起始时间，单位毫秒或者百分比，默认最初</param>
/// <param name="end_time">终止时间，单位毫秒或者百分比，默认谱面末尾</param>
/// <param name="encoder_command_line">编码命令</param>
/// <param name="save_file_name">保存的文件名</param>
public static bool GeneratePreviewAudio(
string dir_path,
string specific_bms_file_name = null,
string start_time = null,
string end_time = null,
string encoder_command_line = "",
string save_file_name = "preview_auto_generator.ogg",
int fade_out = 0,
int fade_in = 0,
bool check_vaild = false,
bool fast_clip = false,
bool no_skip = false)
{
var created_audio_handles = new HashSet <int>();
var sync_record = new HashSet <int>();
int mixer = 0;
try
{
save_file_name = string.IsNullOrWhiteSpace(save_file_name) ? "preview_auto_generator.ogg" : save_file_name;
if (!Directory.Exists(dir_path))
{
throw new Exception($"Directory {dir_path} not found.");
}
var bms_file_path = string.IsNullOrWhiteSpace(specific_bms_file_name) ? Directory.EnumerateFiles(dir_path, "*.bm*", SearchOption.TopDirectoryOnly).Where(x => support_bms_format.Any(y => x.EndsWith(y, StringComparison.InvariantCultureIgnoreCase))).FirstOrDefault() : Path.Combine(dir_path, specific_bms_file_name);
if (!File.Exists(bms_file_path))
{
throw new Exception($"BMS file {bms_file_path} not found.");
}
Console.WriteLine($"BMS file path:{bms_file_path}");
var content = File.ReadAllText(bms_file_path);
if (((check_vaild && CheckBeforeFileVaild(dir_path, save_file_name)) || CheckSkipable(dir_path, content)) && !no_skip)
{
Console.WriteLine("This bms contains preview audio file, skiped.");
return(true);
}
var chart = bms_file_path.EndsWith(".bmson", StringComparison.InvariantCultureIgnoreCase) ? new BmsonChart(content) as Chart : new BMSChart(content);
chart.Parse(ParseType.Header);
chart.Parse(ParseType.Resources);
chart.Parse(ParseType.Content);
var audio_map = chart.IterateResourceData(ResourceType.wav)
.Select(x => (x.resourceId, Directory.EnumerateFiles(dir_path, $"{Path.GetFileNameWithoutExtension(x.dataPath)}.*").FirstOrDefault()))
.Select(x => (x.resourceId, LoadAudio(x.Item2)))
.ToDictionary(x => x.resourceId, x => x.Item2);
var bms_evemts = chart.Events
.Where(e => e.type ==
BMSEventType.WAV ||
e.type == BMSEventType.Note ||
e.type == BMSEventType.LongNoteEnd ||
e.type == BMSEventType.LongNoteStart)
.OrderBy(x => x.time)
.Where(x => audio_map.ContainsKey(x.data2))//filter
.ToArray();
//init mixer
mixer = BassMix.CreateMixerStream(44100, 2, BassFlags.Decode | BassFlags.MixerNonStop);
//build triggers
var mixer_events = new List <MixEventBase>(bms_evemts.Select(x => new AudioMixEvent()
{
Time = x.time,
Duration = TimeSpan.FromSeconds(Bass.ChannelBytes2Seconds(audio_map[x.data2], Bass.ChannelGetLength(audio_map[x.data2]))),
PlayOffset = TimeSpan.Zero,
AudioHandle = audio_map[x.data2]
}));
#region Calculate and Adjust StartTime/EndTime
var full_audio_duration = mixer_events.OfType <AudioMixEvent>().Max(x => x.Duration + x.Time).Add(TimeSpan.FromSeconds(1));
var actual_end_time = string.IsNullOrWhiteSpace(end_time) ? full_audio_duration : (end_time.EndsWith("%") ? TimeSpan.FromMilliseconds(float.Parse(end_time.TrimEnd('%')) / 100.0f * full_audio_duration.TotalMilliseconds) : TimeSpan.FromMilliseconds(int.Parse(end_time)));
var actual_start_time = string.IsNullOrWhiteSpace(start_time) ? TimeSpan.Zero : (start_time.EndsWith("%") ? TimeSpan.FromMilliseconds(float.Parse(start_time.TrimEnd('%')) / 100.0f * full_audio_duration.TotalMilliseconds) : TimeSpan.FromMilliseconds(int.Parse(start_time)));
actual_start_time = actual_start_time < TimeSpan.Zero ? TimeSpan.Zero : actual_start_time;
actual_start_time = actual_start_time > full_audio_duration ? full_audio_duration : actual_start_time;
actual_end_time = actual_end_time < TimeSpan.Zero ? TimeSpan.Zero : actual_end_time;
actual_end_time = actual_end_time > full_audio_duration ? full_audio_duration : actual_end_time;
if (actual_end_time < actual_start_time)
{
var t = actual_end_time;
actual_end_time = actual_start_time;
actual_start_time = t;
}
Console.WriteLine($"Actual clip({(int)full_audio_duration.TotalMilliseconds}ms):{(int)actual_start_time.TotalMilliseconds}ms ~ {(int)actual_end_time.TotalMilliseconds}ms");
#endregion
if (fast_clip)
{
FastClipEvent(mixer_events, ref actual_start_time, ref actual_end_time);
}
//add special events to control encorder and mixer
mixer_events.Add(new StopMixEvent {
Time = actual_end_time
});
mixer_events.Add(new StartMixEvent()
{
Time = actual_start_time
});
//save encoder handle
int encoder = 0;
#region apply fade in/out
var effect = new VolumeParameters();
var fx = Bass.ChannelSetFX(mixer, effect.FXType, 0);
if (fade_in != 0)
{
var fade_in_evt = new FadeMixEvent(false, fade_in)
{
Time = actual_start_time
};
mixer_events.Add(fade_in_evt);
}
if (fade_out != 0)
{
var fade_out_evt = new FadeMixEvent(true, fade_out)
{
Time = actual_end_time.Subtract(TimeSpan.FromMilliseconds(fade_out))
};
mixer_events.Add(fade_out_evt);
}
#endregion
foreach (var evt in mixer_events)
{
var trigger_position = Bass.ChannelSeconds2Bytes(mixer, evt.Time.TotalSeconds);
sync_record.Add(Bass.ChannelSetSync(mixer, SyncFlags.Position | SyncFlags.Mixtime, trigger_position, (nn, mm, ss, ll) =>
{
if (evt is StopMixEvent && encoder != 0)
{
Bass.ChannelStop(mixer);
BassEnc.EncodeStop(encoder);
encoder = 0;
}
else if (evt is StartMixEvent && encoder == 0)
{
var output_path = Path.Combine(dir_path, save_file_name);
Console.WriteLine($"Encoding output file path:{output_path}");
encoder = BassEnc_Ogg.Start(mixer, encoder_command_line, EncodeFlags.AutoFree, output_path);
}
else if (evt is AudioMixEvent audio)
{
var handle = audio.AudioHandle;
BassMix.MixerRemoveChannel(handle);
Bass.ChannelSetPosition(handle, Bass.ChannelSeconds2Bytes(handle, audio.PlayOffset.TotalSeconds));
BassMix.MixerAddChannel(mixer, handle, BassFlags.Default);
}
else if (evt is FadeMixEvent fade)
{
effect.fTime = fade.Duration / 1000.0f;
if (fade.FadeOut)
{
effect.fCurrent = 1;
effect.fTarget = 0;
}
else
{
effect.fCurrent = 0;
effect.fTarget = 1;
}
Bass.FXSetParameters(fx, effect);
}
}));
}
WaitChannelDataProcessed(mixer);
Console.WriteLine("Success!");
return(true);
}
catch (Exception ex)
{
Console.WriteLine($"Failed.\n{ex.Message}\n{ex.StackTrace}");
return(false);
}
finally
{
#region Clean Resource
foreach (var record in sync_record)
{
Bass.ChannelRemoveSync(mixer, record);
}
foreach (var handle in created_audio_handles)
{
Bass.StreamFree(handle);
}
if (mixer != 0)
{
Bass.StreamFree(mixer);
}
#endregion
}
int LoadAudio(string item2)
{
var handle = Bass.CreateStream(item2, 0, 0, BassFlags.Decode | BassFlags.Float);
created_audio_handles.Add(handle);
return(handle);
}
}
/// <inheritdoc />
public void Load(string fileName)
{
_networkstream = ExtensionProvider.IsNetworkStream(fileName);
Log.Info("Loading file: {0}", fileName);
if (_decodeChannel != 0 || _mixerChannel != 0)
{
Stop();
}
try { Bass.StreamFree(_decodeChannel); }
catch (Exception ex) { Debug.WriteLine(ex); }
if (string.IsNullOrEmpty(fileName))
{
Log.Error("Filename was null or empty. Aborted load");
return;
}
var sourceflags = BassFlags.Decode | BassFlags.Loop | BassFlags.Float | BassFlags.Prescan;
var mixerflags = BassFlags.MixerDownMix | BassFlags.MixerPositionEx | BassFlags.AutoFree;
if (_networkstream)
{
int r;
lock (Lock)
{
// make sure only 1 thread at a time can do the following
// increment the request counter for this request
r = ++_req;
}
var netFlags = BassFlags.StreamDownloadBlocks | sourceflags;
Bass.NetProxy = ""; //os default proxy
_decodeChannel = Bass.CreateStream(fileName, 0, netFlags, _streamDloadProc, new IntPtr(r));
lock (Lock)
{
if (r != _req)
{
if (_decodeChannel != 0)
{
Bass.StreamFree(_decodeChannel);
}
return;
}
}
_netadress = fileName;
}
else
{
if (ExtensionProvider.IsCdStream(fileName))
{
var cd = new CDTrackInfo(fileName);
_decodeChannel = BassCd.CreateStream(cd.Drive, cd.Track, sourceflags);
Log.Info("Geting track metadata...");
UpdateCDTags(cd.Drive, cd.Track);
}
else
{
_decodeChannel = Bass.CreateStream(fileName, 0, 0, sourceflags);
Log.Info("Geting track metadata...");
UpdateFileTags(fileName);
}
}
if (_decodeChannel == 0)
{
Log.Error("Decode chanel creation failed: {0}", Bass.LastError);
return;
}
var channelInfo = Bass.ChannelGetInfo(_decodeChannel);
_mixerChannel = BassMix.CreateMixerStream(channelInfo.Frequency, channelInfo.Channels, mixerflags);
if (_mixerChannel == 0)
{
Log.Error("Mixer chanel creation failed: {0}", Bass.LastError);
return;
}
if (!BassMix.MixerAddChannel(_mixerChannel, _decodeChannel, BassFlags.MixerDownMix))
{
Log.Error("Failed to route decoded stream to mixer: {0}", Bass.LastError);
return;
}
if (!_networkstream)
{
Log.Info("Getting track length...");
var len = Bass.ChannelGetLength(_decodeChannel, PositionFlags.Bytes);
_length = Bass.ChannelBytes2Seconds(_decodeChannel, len);
NotifyChanged(nameof(Length));
Log.Info("Getting Chapters...");
Chapters.Clear();
Chapters.AddRange(ChapterFactory.GetChapters(fileName, _length));
}
Volume = _LastVolume;
Bass.ChannelSetAttribute(_mixerChannel, ChannelAttribute.Volume, Volume);
Log.Info("Loaded file {0}", fileName);
}
public bool AddChannel(Channel channel)
{
return(BassMix.MixerAddChannel(Handle, channel.Handle, BassFlags.Default));
}
public void Load(string url)
{
CurrentMediaKind = MediaKind.None;
FreeHandles();
if (FormatHelpers.IsMidi(url) && File.Exists(_configuration.SoundFontPath))
{
BassMidi.DefaultFont = _configuration.SoundFontPath;
}
const BassFlags sourceflags = BassFlags.Decode | BassFlags.Loop | BassFlags.Float | BassFlags.Prescan;
const BassFlags mixerflags = BassFlags.MixerDownMix | BassFlags.MixerPositionEx | BassFlags.AutoFree;
if (FormatHelpers.IsNetwork(url))
{
_sourceHandle = Bass.CreateStream(url, 0, sourceflags, _callback, IntPtr.Zero);
CurrentMediaKind = MediaKind.Network;
}
else if (FormatHelpers.IsCd(url))
{
(int drive, int track)cdInfo = FormatHelpers.ProcessCdUrl(url);
_sourceHandle = BassCd.CreateStream(cdInfo.drive, cdInfo.track, sourceflags);
CurrentMediaKind = MediaKind.CDStream;
}
else if (FormatHelpers.IsTracker(url))
{
_sourceHandle = Bass.MusicLoad(url, 0, 0, sourceflags);
CurrentMediaKind = MediaKind.Tracker;
MetaInfo = TrackMetaInfoFactory.CreateTrackerInfo(url, _sourceHandle);
}
else
{
_sourceHandle = Bass.CreateStream(url, 0, 0, sourceflags);
CurrentMediaKind = MediaKind.File;
MetaInfo = TrackMetaInfoFactory.CreateFileInfo(url);
}
if (_sourceHandle == 0)
{
ExceptionFactory.Create(Bass.LastError, "File Load failed");
}
_sourceInfo = Bass.ChannelGetInfo(_sourceHandle);
_mixerHandle = BassMix.CreateMixerStream(_sourceInfo.Frequency, _sourceInfo.Channels, mixerflags);
if (_mixerHandle == 0)
{
ExceptionFactory.Create(Bass.LastError, "Mixer failed");
}
if (!BassMix.MixerAddChannel(_mixerHandle, _sourceHandle, BassFlags.MixerDownMix))
{
ExceptionFactory.Create(Bass.LastError, "Channel mixing failed");
}
Bass.ChannelSetAttribute(_mixerHandle, ChannelAttribute.Volume, _lastvol);
InitEq(ref _mixerHandle);
Bass.ChannelPlay(_mixerHandle, false);
IsPlaying = true;
NotifyPropertyChanged(nameof(MetaInfo));
}
void InitLoopbackDevice(BassItem LoopbackDevice)
{
var playbackDevice = FindPlaybackDevice(LoopbackDevice.Id);
_loopback.Add(LoopbackDevice.Id, new LoopbackItem
{
DeviceId = LoopbackDevice.Id,
PlaybackDeviceId = playbackDevice
});
void AddDevice()
{
lock (_syncLock)
{
if (_loopback[LoopbackDevice.Id].RecordingHandle != 0)
{
return;
}
Bass.Init(playbackDevice);
Bass.CurrentDevice = playbackDevice;
var silence = Bass.CreateStream(44100, 2, BassFlags.Float, ManagedBass.Extensions.SilenceStreamProcedure);
_loopback[LoopbackDevice.Id].SilenceStreamHandle = silence;
Bass.RecordInit(LoopbackDevice.Id);
Bass.CurrentRecordingDevice = LoopbackDevice.Id;
var info = Bass.RecordingInfo;
var handle = Bass.RecordStart(info.Frequency, info.Channels, BassFlags.Float | BassFlags.RecordPause, null);
_loopback[LoopbackDevice.Id].RecordingHandle = handle;
BassMix.MixerAddChannel(_mixer, handle, BassFlags.MixerDownMix);
if (_running)
{
Bass.ChannelPlay(silence);
Bass.ChannelPlay(handle);
}
}
}
void RemoveDevice()
{
lock (_syncLock)
{
if (_loopback[LoopbackDevice.Id].RecordingHandle == 0)
{
return;
}
var item = _loopback[LoopbackDevice.Id];
BassMix.MixerRemoveChannel(item.RecordingHandle);
Bass.StreamFree(item.RecordingHandle);
Bass.StreamFree(item.SilenceStreamHandle);
_loopback[LoopbackDevice.Id].RecordingHandle = 0;
_loopback[LoopbackDevice.Id].SilenceStreamHandle = 0;
}
}
LoopbackDevice.PropertyChanged += (S, E) =>
{
if (E.PropertyName == nameof(LoopbackDevice.Active))
{
if (LoopbackDevice.Active)
{
AddDevice();
}
else
{
RemoveDevice();
}
}
};
if (LoopbackDevice.Active)
{
AddDevice();
}
}
void InitDevice(BassItem Device)
{
_devices.Add(Device.Id, new RecordingItem
{
DeviceId = Device.Id
});
void AddDevice()
{
lock (_syncLock)
{
if (_devices[Device.Id].RecordingHandle != 0)
{
return;
}
Bass.RecordInit(Device.Id);
Bass.CurrentRecordingDevice = Device.Id;
var info = Bass.RecordingInfo;
var handle = Bass.RecordStart(info.Frequency, info.Channels, BassFlags.Float | BassFlags.RecordPause, null);
_devices[Device.Id].RecordingHandle = handle;
BassMix.MixerAddChannel(_mixer, handle, BassFlags.MixerDownMix);
if (_running)
{
Bass.ChannelPlay(handle);
}
}
}
void RemoveDevice()
{
lock (_syncLock)
{
if (_devices[Device.Id].RecordingHandle == 0)
{
return;
}
var handle = _devices[Device.Id].RecordingHandle;
BassMix.MixerRemoveChannel(handle);
Bass.StreamFree(handle);
_devices[Device.Id].RecordingHandle = 0;
}
}
Device.PropertyChanged += (S, E) =>
{
if (E.PropertyName == nameof(Device.Active))
{
if (Device.Active)
{
AddDevice();
}
else
{
RemoveDevice();
}
}
};
if (Device.Active)
{
AddDevice();
}
}
/// <summary>
/// Load a file for playback
/// </summary>
/// <param name="file">File to load</param>
public void Load(string file)
{
_isstream = false;
if (Helpers.IsMidi(file))
{
if (!File.Exists(Properties.Settings.Default.SoundfontPath))
{
Error(Resources.Engine_ErrorSoundfont);
return;
}
BassMidi.DefaultFont = Properties.Settings.Default.SoundfontPath;
}
if (_source != 0)
{
Bass.StreamFree(_source);
_source = 0;
IsPlaying = false;
}
if (_mixer != 0)
{
Bass.StreamFree(_mixer);
_mixer = 0;
IsPlaying = false;
}
var sourceflags = BassFlags.Decode | BassFlags.Loop | BassFlags.Float | BassFlags.Prescan;
var mixerflags = BassFlags.MixerDownMix | BassFlags.MixerPositionEx | BassFlags.AutoFree;
if (file.StartsWith("http://") || file.StartsWith("https://"))
{
_source = Bass.CreateStream(file, 0, sourceflags, _callback, IntPtr.Zero);
_isstream = true;
App.RecentUrls.Add(file);
}
else if (file.StartsWith("cd://"))
{
string[] info = file.Replace("cd://", "").Split('/');
_source = BassCd.CreateStream(Convert.ToInt32(info[0]), Convert.ToInt32(info[1]), sourceflags);
}
else if (Helpers.IsTracker(file))
{
_source = Bass.MusicLoad(file, 0, 0, sourceflags);
}
else
{
_source = Bass.CreateStream(file, 0, 0, sourceflags);
}
if (_source == 0)
{
Error("Load failed");
IsPlaying = false;
_isstream = false;
return;
}
var ch = Bass.ChannelGetInfo(_source);
_mixer = BassMix.CreateMixerStream(ch.Frequency, ch.Channels, mixerflags);
if (_mixer == 0)
{
Error(Resources.Engine_ErrorMixer);
IsPlaying = false;
return;
}
if (!BassMix.MixerAddChannel(_mixer, _source, BassFlags.MixerDownMix))
{
Error(Resources.Engine_ErrorMixerChannel);
IsPlaying = false;
return;
}
Bass.ChannelSetAttribute(_mixer, ChannelAttribute.Volume, _lastvol);
Bass.ChannelPlay(_mixer, false);
_paused = false;
IsPlaying = true;
}