private void buttonPlay_Click(object sender, System.EventArgs e)
{
BassAsio.BASS_ASIO_Stop();
BassAsio.BASS_ASIO_ChannelReset(false, -1, BASSASIOReset.BASS_ASIO_RESET_PAUSE | BASSASIOReset.BASS_ASIO_RESET_JOIN);
Bass.BASS_StreamFree(_streamFX);
if (_fileName != String.Empty)
{
// create the decoding stream
_stream = Bass.BASS_StreamCreateFile(_fileName, 0, 0, BASSFlag.BASS_STREAM_DECODE | BASSFlag.BASS_SAMPLE_FLOAT);
if (_stream != 0)
{
// now we create a Tempo channel (again a decoding one)...the actual playing channel
_streamFX = BassFx.BASS_FX_TempoCreate(_stream, BASSFlag.BASS_STREAM_DECODE | BASSFlag.BASS_FX_FREESOURCE | BASSFlag.BASS_SAMPLE_FLOAT);
if (_streamFX == 0)
{
MessageBox.Show(this, "Can't create FX stream!", Enum.GetName(typeof(BASSError), Bass.BASS_ErrorGetCode()));
return;
}
// now setup ASIO
myAsioProc = new ASIOPROC(AsioCallback);
// get the stream channel info
BASS_CHANNELINFO info = new BASS_CHANNELINFO();
Bass.BASS_ChannelGetInfo(_streamFX, info);
_originSampleRate = (float)info.freq;
this.button2.Text = _originSampleRate.ToString("0");
// enable 1st output channel...(0=first)
BassAsio.BASS_ASIO_ChannelEnable(false, 0, myAsioProc, new IntPtr(_streamFX));
// and join the next channels to it
for (int a = 1; a < info.chans; a++)
{
BassAsio.BASS_ASIO_ChannelJoin(false, a, 0);
}
// since we joined the channels, the next commands will applay to all channles joined
// so setting the values to the first channels changes them all automatically
// set the source format (float, as the decoding channel is)
BassAsio.BASS_ASIO_ChannelSetFormat(false, 0, BASSASIOFormat.BASS_ASIO_FORMAT_FLOAT);
// set the source rate
BassAsio.BASS_ASIO_ChannelSetRate(false, 0, (double)info.freq);
// try to set the device rate too (saves resampling)
BassAsio.BASS_ASIO_SetRate((double)info.freq);
// and start playing it...
// start output using default buffer/latency
if (!BassAsio.BASS_ASIO_Start(0))
{
MessageBox.Show(this, "Can't start ASIO output", Enum.GetName(typeof(BASSError), BassAsio.BASS_ASIO_ErrorGetCode()));
}
else
{
this.labelStatus.Text = "playing";
this.timerUpdate.Start();
}
}
}
}
public override void Initialize(int deviceid)
{
//BassAsio.BASS_ASIO_ChannelEnable(true,
this.FMyHandler = new BassAsioHandler(true, deviceid, this.index, this.count, BASSASIOFormat.BASS_ASIO_FORMAT_FLOAT, 48000);
if (!BassAsio.BASS_ASIO_IsStarted())
{
BassAsio.BASS_ASIO_Start(0);
}
this.FMyHandler.SetFullDuplex(0, BASSFlag.BASS_STREAM_DECODE, false);
this.BassHandle = this.FMyHandler.InputChannel;
this.IsDecoding = true;
}
private bool setupChannel(int Frequency, BASSASIOFormat Format)
{
proc = new ASIOPROC(AsioCallback);
BassAsio.BASS_ASIO_Stop();
if (!BassAsio.BASS_ASIO_ChannelReset(false,
-1,
BASSASIOReset.BASS_ASIO_RESET_PAUSE | BASSASIOReset.BASS_ASIO_RESET_JOIN))
{
return(false);
}
if (!BassAsio.BASS_ASIO_ChannelEnable(false, 0, proc, IntPtr.Zero))
{
return(false);
}
if (!BassAsio.BASS_ASIO_ChannelJoin(false, 1, 0))
{
return(false);
}
if (!BassAsio.BASS_ASIO_ChannelSetFormat(false, 0, Format))
{
return(false);
}
BassAsio.BASS_ASIO_SetRate((double)Frequency);
if (!BassAsio.BASS_ASIO_ChannelSetRate(false, 0, (double)Frequency))
{
return(false);
}
return(BassAsio.BASS_ASIO_Start(0));
}
/// <summary>
/// Create a mixer using the stream attributes
/// </summary>
/// <param name="stream"></param>
/// <returns></returns>
public bool CreateMixer(MusicStream stream)
{
Log.Debug("BASS: ---------------------------------------------");
Log.Debug("BASS: Creating BASS mixer stream");
bool result = false;
BASSFlag mixerFlags = BASSFlag.BASS_MIXER_NONSTOP | BASSFlag.BASS_SAMPLE_FLOAT | BASSFlag.BASS_MIXER_NORAMPIN;
if (Config.MusicPlayer == AudioPlayer.Asio || Config.MusicPlayer == AudioPlayer.WasApi)
{
mixerFlags |= BASSFlag.BASS_STREAM_DECODE;
}
int outputChannels = _bassPlayer.DeviceChannels;
_mixingMatrix = null;
// See, if we need Upmixing
if (outputChannels > stream.ChannelInfo.chans)
{
Log.Debug("BASS: Found more output channels ({0}) than input channels ({1}). Check for upmixing.", outputChannels,
stream.ChannelInfo.chans);
_mixingMatrix = CreateMixingMatrix(stream.ChannelInfo.chans);
if (_mixingMatrix != null)
{
outputChannels = Math.Min(_mixingMatrix.GetLength(0), outputChannels);
_upmixing = true;
}
else
{
outputChannels = stream.ChannelInfo.chans;
}
}
else if (outputChannels < stream.ChannelInfo.chans)
{
// Downmix to Stereo
Log.Debug("BASS: Found more input channels ({0}) than output channels ({1}). Downmix.", stream.ChannelInfo.chans,
outputChannels);
outputChannels = Math.Min(outputChannels, 2);
}
Log.Debug("BASS: Creating {0} channel mixer with sample rate of {1}", outputChannels, stream.ChannelInfo.freq);
_mixer = BassMix.BASS_Mixer_StreamCreate(stream.ChannelInfo.freq, outputChannels, mixerFlags);
if (_mixer == 0)
{
Log.Error("BASS: Unable to create Mixer. Reason: {0}.",
Enum.GetName(typeof(BASSError), Bass.BASS_ErrorGetCode()));
return(false);
}
switch (Config.MusicPlayer)
{
case AudioPlayer.Bass:
case AudioPlayer.DShow:
if (!Bass.BASS_ChannelPlay(_mixer, false))
{
Log.Error("BASS: Unable to start Mixer. Reason: {0}.", Enum.GetName(typeof(BASSError), Bass.BASS_ErrorGetCode()));
return(false);
}
result = true;
break;
case AudioPlayer.Asio:
Log.Info("BASS: Initialising ASIO device");
if (BassAsio.BASS_ASIO_IsStarted() && !BassAsio.BASS_ASIO_Stop())
{
Log.Error("BASS: Error stopping Asio Device: {0}", BassAsio.BASS_ASIO_ErrorGetCode());
}
// Disable and Unjoin all the channels
if (!BassAsio.BASS_ASIO_ChannelReset(false, -1, BASSASIOReset.BASS_ASIO_RESET_ENABLE))
{
Log.Error("BASS: Error disabling Asio Channels: {0}", BassAsio.BASS_ASIO_ErrorGetCode());
}
if (!BassAsio.BASS_ASIO_ChannelReset(false, -1, BASSASIOReset.BASS_ASIO_RESET_JOIN))
{
Log.Error("BASS: Error unjoining Asio Channels: {0}", BassAsio.BASS_ASIO_ErrorGetCode());
}
_asioProc = new ASIOPROC(AsioCallback);
BassAsio.BASS_ASIO_ChannelSetVolume(false, -1, (float)Config.StreamVolume / 100f);
// enable 1st output channel...(0=first)
Log.Debug("BASS: Joining Asio Channel #{0}", "0");
BassAsio.BASS_ASIO_ChannelEnable(false, 0, _asioProc, new IntPtr(_mixer));
// and join the next channels to it
int numChannels = Math.Max(stream.ChannelInfo.chans, outputChannels);
for (int i = 1; i < numChannels; i++)
{
Log.Debug("BASS: Joining Asio Channel #{0}", i);
BassAsio.BASS_ASIO_ChannelJoin(false, i, 0);
}
// since we joined the channels, the next commands will apply to all channles joined
// so setting the values to the first channels changes them all automatically
// set the source format (float, as the decoding channel is)
if (!BassAsio.BASS_ASIO_ChannelSetFormat(false, 0, BASSASIOFormat.BASS_ASIO_FORMAT_FLOAT))
{
Log.Error("BASS: Error setting Asio Sample Format: {0}", BassAsio.BASS_ASIO_ErrorGetCode());
}
// set the source rate
Log.Debug("BASS: Set sample rate to {0}", stream.ChannelInfo.freq);
if (!BassAsio.BASS_ASIO_ChannelSetRate(false, 0, (double)stream.ChannelInfo.freq))
{
Log.Error("BASS: Error setting Asio Channel Samplerate: {0}", BassAsio.BASS_ASIO_ErrorGetCode());
}
// try to set the device rate too (saves resampling)
if (!BassAsio.BASS_ASIO_SetRate((double)stream.ChannelInfo.freq))
{
Log.Error("BASS: Error setting Asio Samplerate: {0}", BassAsio.BASS_ASIO_ErrorGetCode());
}
// and start playing it...start output using default buffer/latency
if (!BassAsio.BASS_ASIO_Start(0))
{
Log.Error("BASS: Error starting Asio playback: {0}", BassAsio.BASS_ASIO_ErrorGetCode());
}
Log.Info("BASS: Finished initialising ASIO device");
result = true;
break;
case AudioPlayer.WasApi:
Log.Info("BASS: Initialising WASAPI device");
try
{
BassWasapi.BASS_WASAPI_Free();
Log.Debug("BASS: Freed WASAPI device");
}
catch (Exception ex)
{
Log.Error("BASS: Exception freeing WASAPI. {0} {1}", ex.Message, ex.StackTrace);
}
BASSWASAPIInit initFlags = BASSWASAPIInit.BASS_WASAPI_AUTOFORMAT;
_wasapiProc = new WASAPIPROC(WasApiCallback);
bool wasApiExclusiveSupported = true;
// Check if we have an uneven number of channels
var chkChannels = outputChannels % 2;
if (chkChannels == 1)
{
Log.Warn("BASS: Found uneven number of channels {0}. increase output channels.", outputChannels);
outputChannels++; // increase the number of output channels
wasApiExclusiveSupported = false; // And indicate that we need a new mixer
}
// Handle the special cases of 3.0, 4.0 and 5.0 files being played on a 5.1 or 6.1 device
if (outputChannels == 3) // a 3.0 file
{
Log.Info("BASS: Found a 3 channel file. Set upmixing with LFE, LR, RR set to silent");
_mixingMatrix = CreateThreeDotZeroUpMixMatrix();
outputChannels = _bassPlayer.DeviceChannels; // WASAPI device should be initialised with all channels active
wasApiExclusiveSupported = false; // And indicate that we need a new mixer
}
else if (outputChannels == 4) // a 4.0 file
{
Log.Info("BASS: Found a 4 channel file. Set upmixing with Center and LFE set to silent");
_mixingMatrix = CreateFourDotZeroUpMixMatrix();
outputChannels = _bassPlayer.DeviceChannels; // WASAPI device should be initialised with all channels active
wasApiExclusiveSupported = false; // And indicate that we need a new mixer
}
else if (outputChannels == 5) // a 5.0 file
{
Log.Info("BASS: Found a 5 channel file. Set upmixing with LFE set to silent");
_mixingMatrix = CreateFiveDotZeroUpMixMatrix();
outputChannels = _bassPlayer.DeviceChannels; // WASAPI device should be initialised with all channels active
wasApiExclusiveSupported = false; // And indicate that we need a new mixer
}
// If Exclusive mode is used, check, if that would be supported, otherwise init in shared mode
if (Config.WasApiExclusiveMode)
{
initFlags |= BASSWASAPIInit.BASS_WASAPI_EXCLUSIVE;
_wasapiShared = false;
_wasapiMixedChans = 0;
_wasapiMixedFreq = 0;
BASSWASAPIFormat wasapiFormat = BassWasapi.BASS_WASAPI_CheckFormat(_bassPlayer.DeviceNumber,
stream.ChannelInfo.freq,
outputChannels,
BASSWASAPIInit.BASS_WASAPI_EXCLUSIVE);
if (wasapiFormat == BASSWASAPIFormat.BASS_WASAPI_FORMAT_UNKNOWN)
{
Log.Warn("BASS: WASAPI exclusive mode not directly supported. Let BASS WASAPI choose better mode.");
wasApiExclusiveSupported = false;
}
}
else
{
Log.Debug("BASS: Init WASAPI shared mode with Event driven system enabled.");
initFlags |= BASSWASAPIInit.BASS_WASAPI_SHARED | BASSWASAPIInit.BASS_WASAPI_EVENT;
// In case of WASAPI Shared mode we need to setup the mixer to use the same sample rate as set in
// the Windows Mixer, otherwise we wioll have increased playback speed
BASS_WASAPI_DEVICEINFO devInfo = BassWasapi.BASS_WASAPI_GetDeviceInfo(_bassPlayer.DeviceNumber);
Log.Debug("BASS: Creating {0} channel mixer for frequency {1}", devInfo.mixchans, devInfo.mixfreq);
_mixer = BassMix.BASS_Mixer_StreamCreate(devInfo.mixfreq, devInfo.mixchans, mixerFlags);
if (_mixer == 0)
{
Log.Error("BASS: Unable to create Mixer. Reason: {0}.",
Enum.GetName(typeof(BASSError), Bass.BASS_ErrorGetCode()));
return(false);
}
_wasapiShared = true;
}
Log.Debug("BASS: Try to init WASAPI with a Frequency of {0} and {1} channels", stream.ChannelInfo.freq, outputChannels);
if (BassWasapi.BASS_WASAPI_Init(_bassPlayer.DeviceNumber, stream.ChannelInfo.freq, outputChannels,
initFlags | BASSWASAPIInit.BASS_WASAPI_BUFFER, Convert.ToSingle(Config.BufferingMs / 1000.0), 0f, _wasapiProc, IntPtr.Zero))
{
BASS_WASAPI_INFO wasapiInfo = BassWasapi.BASS_WASAPI_GetInfo();
Log.Debug("BASS: ---------------------------------------------");
Log.Debug("BASS: Buffer Length: {0}", wasapiInfo.buflen);
Log.Debug("BASS: Channels: {0}", wasapiInfo.chans);
Log.Debug("BASS: Frequency: {0}", wasapiInfo.freq);
Log.Debug("BASS: Format: {0}", wasapiInfo.format.ToString());
Log.Debug("BASS: InitFlags: {0}", wasapiInfo.initflags.ToString());
Log.Debug("BASS: Exclusive: {0}", wasapiInfo.IsExclusive.ToString());
Log.Debug("BASS: ---------------------------------------------");
Log.Info("BASS: WASAPI Device successfully initialised");
// Now we need to check, if WASAPI decided to switch to a different mode
if (Config.WasApiExclusiveMode && !wasApiExclusiveSupported)
{
// Recreate Mixer with new value
Log.Debug("BASS: Creating new {0} channel mixer for frequency {1}", wasapiInfo.chans, wasapiInfo.freq);
_mixer = BassMix.BASS_Mixer_StreamCreate(wasapiInfo.freq, wasapiInfo.chans, mixerFlags);
if (_mixer == 0)
{
Log.Error("BASS: Unable to create Mixer. Reason: {0}.",
Enum.GetName(typeof(BASSError), Bass.BASS_ErrorGetCode()));
return(false);
}
}
BassWasapi.BASS_WASAPI_SetVolume(BASSWASAPIVolume.BASS_WASAPI_CURVE_DB, (float)Config.StreamVolume / 100f);
BassWasapi.BASS_WASAPI_Start();
result = true;
}
else
{
Log.Error("BASS: Couldn't init WASAPI device. Error: {0}", Enum.GetName(typeof(BASSError), Bass.BASS_ErrorGetCode()));
}
break;
}
if (result)
{
Log.Debug("BASS: Successfully created BASS Mixer stream");
}
return(result);
}
// メソッド
public CSoundDeviceASIO(long n希望バッファサイズms, int _nASIODevice)
{
// 初期化。
Trace.TraceInformation("BASS (ASIO) の初期化を開始します。");
this.e出力デバイス = ESoundDeviceType.Unknown;
this.n実出力遅延ms = 0;
this.n経過時間ms = 0;
this.n経過時間を更新したシステム時刻ms = CTimer.n未使用;
this.tmシステムタイマ = new CTimer();
this.nASIODevice = _nASIODevice;
#region [ BASS registration ]
// BASS.NET ユーザ登録（BASSスプラッシュが非表示になる）。
BassNet.Registration("*****@*****.**", "2X9181017152222");
#endregion
#region [ BASS Version Check ]
// BASS のバージョンチェック。
int nBASSVersion = Utils.HighWord(Bass.BASS_GetVersion());
if (nBASSVersion != Bass.BASSVERSION)
{
throw new DllNotFoundException(string.Format("bass.dll のバージョンが異なります({0})。このプログラムはバージョン{1}で動作します。", nBASSVersion, Bass.BASSVERSION));
}
int nBASSMixVersion = Utils.HighWord(BassMix.BASS_Mixer_GetVersion());
if (nBASSMixVersion != BassMix.BASSMIXVERSION)
{
throw new DllNotFoundException(string.Format("bassmix.dll のバージョンが異なります({0})。このプログラムはバージョン{1}で動作します。", nBASSMixVersion, BassMix.BASSMIXVERSION));
}
int nBASSASIO = Utils.HighWord(BassAsio.BASS_ASIO_GetVersion());
if (nBASSASIO != BassAsio.BASSASIOVERSION)
{
throw new DllNotFoundException(string.Format("bassasio.dll のバージョンが異なります({0})。このプログラムはバージョン{1}で動作します。", nBASSASIO, BassAsio.BASSASIOVERSION));
}
#endregion
// BASS の設定。
this.bIsBASSFree = true;
if (!Bass.BASS_SetConfig(BASSConfig.BASS_CONFIG_UPDATEPERIOD, 0)) // 0:BASSストリームの自動更新を行わない。
{
Trace.TraceWarning($"BASS_SetConfig({nameof(BASSConfig.BASS_CONFIG_UPDATEPERIOD)}) に失敗しました。[{Bass.BASS_ErrorGetCode()}]");
}
if (!Bass.BASS_SetConfig(BASSConfig.BASS_CONFIG_UPDATETHREADS, 0)) // 0:BASSストリームの自動更新を行わない。
{
Trace.TraceWarning($"BASS_SetConfig({nameof(BASSConfig.BASS_CONFIG_UPDATETHREADS)}) に失敗しました。[{Bass.BASS_ErrorGetCode()}]");
}
// BASS の初期化。
int nデバイス = 0; // 0:"no device" … BASS からはデバイスへアクセスさせない。アクセスは BASSASIO アドオンから行う。
int n周波数 = 44100; // 仮決め。最終的な周波数はデバイス（≠ドライバ）が決める。
if (!Bass.BASS_Init(nデバイス, n周波数, BASSInit.BASS_DEVICE_DEFAULT, IntPtr.Zero))
{
throw new Exception(string.Format("BASS の初期化に失敗しました。(BASS_Init)[{0}]", Bass.BASS_ErrorGetCode().ToString()));
}
Bass.BASS_SetConfig(BASSConfig.BASS_CONFIG_CURVE_VOL, true);
//Debug.WriteLine( "BASS_Init()完了。" );
#region [ デバッグ用: ASIOデバイスのenumerateと、ログ出力 ]
// CEnumerateAllAsioDevices.GetAllASIODevices();
//Debug.WriteLine( "BassAsio.BASS_ASIO_GetDeviceInfo():" );
// int a, count = 0;
// BASS_ASIO_DEVICEINFO asioDevInfo;
// for ( a = 0; ( asioDevInfo = BassAsio.BASS_ASIO_GetDeviceInfo( a ) ) != null; a++ )
// {
// Trace.TraceInformation( "ASIO Device {0}: {1}, driver={2}", a, asioDevInfo.name, asioDevInfo.driver );
// count++; // count it
// }
#endregion
// BASS ASIO の初期化。
BASS_ASIO_INFO asioInfo = null;
if (BassAsio.BASS_ASIO_Init(nASIODevice, BASSASIOInit.BASS_ASIO_THREAD)) // 専用スレッドにて起動
{
#region [ ASIO の初期化に成功。]
//-----------------
this.e出力デバイス = ESoundDeviceType.ASIO;
asioInfo = BassAsio.BASS_ASIO_GetInfo();
this.n出力チャンネル数 = asioInfo.outputs;
this.db周波数 = BassAsio.BASS_ASIO_GetRate();
this.fmtASIOデバイスフォーマット = BassAsio.BASS_ASIO_ChannelGetFormat(false, 0);
Trace.TraceInformation("BASS を初期化しました。(ASIO, デバイス:\"{0}\", 入力{1}, 出力{2}, {3}Hz, バッファ{4}～{6}sample ({5:0.###}～{7:0.###}ms), デバイスフォーマット:{8})",
asioInfo.name,
asioInfo.inputs,
asioInfo.outputs,
this.db周波数.ToString("0.###"),
asioInfo.bufmin, asioInfo.bufmin * 1000 / this.db周波数,
asioInfo.bufmax, asioInfo.bufmax * 1000 / this.db周波数,
this.fmtASIOデバイスフォーマット.ToString()
);
this.bIsBASSFree = false;
#region [ debug: channel format ]
//BASS_ASIO_CHANNELINFO chinfo = new BASS_ASIO_CHANNELINFO();
//int chan = 0;
//while ( true )
//{
// if ( !BassAsio.BASS_ASIO_ChannelGetInfo( false, chan, chinfo ) )
// break;
// Debug.WriteLine( "Ch=" + chan + ": " + chinfo.name.ToString() + ", " + chinfo.group.ToString() + ", " + chinfo.format.ToString() );
// chan++;
//}
#endregion
//-----------------
#endregion
}
else
{
#region [ ASIO の初期化に失敗。]
//-----------------
BASSError errcode = Bass.BASS_ErrorGetCode();
string errmes = errcode.ToString();
if (errcode == BASSError.BASS_OK)
{
errmes = "BASS_OK; The device may be dissconnected";
}
Bass.BASS_Free();
this.bIsBASSFree = true;
throw new Exception(string.Format("BASS (ASIO) の初期化に失敗しました。(BASS_ASIO_Init)[{0}]", errmes));
//-----------------
#endregion
}
// ASIO 出力チャンネルの初期化。
this.tAsioProc = new ASIOPROC(this.tAsio処理); // アンマネージに渡す delegate は、フィールドとして保持しておかないとGCでアドレスが変わってしまう。
if (!BassAsio.BASS_ASIO_ChannelEnable(false, 0, this.tAsioProc, IntPtr.Zero)) // 出力チャンネル0 の有効化。
{
#region [ ASIO 出力チャンネルの初期化に失敗。]
//-----------------
BassAsio.BASS_ASIO_Free();
Bass.BASS_Free();
this.bIsBASSFree = true;
throw new Exception(string.Format("Failed BASS_ASIO_ChannelEnable() [{0}]", BassAsio.BASS_ASIO_ErrorGetCode().ToString()));
//-----------------
#endregion
}
for (int i = 1; i < this.n出力チャンネル数; i++) // 出力チャネルを全てチャネル0とグループ化する。
{ // チャネル1だけを0とグループ化すると、3ch以上の出力をサポートしたカードでの動作がおかしくなる
if (!BassAsio.BASS_ASIO_ChannelJoin(false, i, 0))
{
#region [ 初期化に失敗。]
//-----------------
BassAsio.BASS_ASIO_Free();
Bass.BASS_Free();
this.bIsBASSFree = true;
throw new Exception(string.Format("Failed BASS_ASIO_ChannelJoin({1}) [{0}]", BassAsio.BASS_ASIO_ErrorGetCode().ToString(), i));
//-----------------
#endregion
}
}
if (!BassAsio.BASS_ASIO_ChannelSetFormat(false, 0, this.fmtASIOチャンネルフォーマット)) // 出力チャンネル0のフォーマット
{
#region [ ASIO 出力チャンネルの初期化に失敗。]
//-----------------
BassAsio.BASS_ASIO_Free();
Bass.BASS_Free();
this.bIsBASSFree = true;
throw new Exception(string.Format("Failed BASS_ASIO_ChannelSetFormat() [{0}]", BassAsio.BASS_ASIO_ErrorGetCode().ToString()));
//-----------------
#endregion
}
// ASIO 出力と同じフォーマットを持つ BASS ミキサーを作成。
var flag = BASSFlag.BASS_MIXER_NONSTOP | BASSFlag.BASS_STREAM_DECODE; // デコードのみ＝発声しない。ASIO に出力されるだけ。
if (this.fmtASIOデバイスフォーマット == BASSASIOFormat.BASS_ASIO_FORMAT_FLOAT)
{
flag |= BASSFlag.BASS_SAMPLE_FLOAT;
}
this.hMixer = BassMix.BASS_Mixer_StreamCreate((int)this.db周波数, this.n出力チャンネル数, flag);
if (this.hMixer == 0)
{
BASSError err = Bass.BASS_ErrorGetCode();
BassAsio.BASS_ASIO_Free();
Bass.BASS_Free();
this.bIsBASSFree = true;
throw new Exception(string.Format("BASSミキサ(mixing)の作成に失敗しました。[{0}]", err));
}
// BASS ミキサーの1秒あたりのバイト数を算出。
var mixerInfo = Bass.BASS_ChannelGetInfo(this.hMixer);
int nサンプルサイズbyte = 0;
switch (this.fmtASIOチャンネルフォーマット)
{
case BASSASIOFormat.BASS_ASIO_FORMAT_16BIT: nサンプルサイズbyte = 2; break;
case BASSASIOFormat.BASS_ASIO_FORMAT_24BIT: nサンプルサイズbyte = 3; break;
case BASSASIOFormat.BASS_ASIO_FORMAT_32BIT: nサンプルサイズbyte = 4; break;
case BASSASIOFormat.BASS_ASIO_FORMAT_FLOAT: nサンプルサイズbyte = 4; break;
}
//long nミキサーの1サンプルあたりのバイト数 = /*mixerInfo.chans*/ 2 * nサンプルサイズbyte;
long nミキサーの1サンプルあたりのバイト数 = mixerInfo.chans * nサンプルサイズbyte;
this.nミキサーの1秒あたりのバイト数 = nミキサーの1サンプルあたりのバイト数 * mixerInfo.freq;
// 単純に、hMixerの音量をMasterVolumeとして制御しても、
// ChannelGetData()の内容には反映されない。
// そのため、もう一段mixerを噛ませて、一段先のmixerからChannelGetData()することで、
// hMixerの音量制御を反映させる。
this.hMixer_DeviceOut = BassMix.BASS_Mixer_StreamCreate(
(int)this.db周波数, this.n出力チャンネル数, flag);
if (this.hMixer_DeviceOut == 0)
{
BASSError errcode = Bass.BASS_ErrorGetCode();
BassAsio.BASS_ASIO_Free();
Bass.BASS_Free();
this.bIsBASSFree = true;
throw new Exception(string.Format("BASSミキサ(最終段)の作成に失敗しました。[{0}]", errcode));
}
{
bool b1 = BassMix.BASS_Mixer_StreamAddChannel(this.hMixer_DeviceOut, this.hMixer, BASSFlag.BASS_DEFAULT);
if (!b1)
{
BASSError errcode = Bass.BASS_ErrorGetCode();
BassAsio.BASS_ASIO_Free();
Bass.BASS_Free();
this.bIsBASSFree = true;
throw new Exception(string.Format("BASSミキサ(最終段とmixing)の接続に失敗しました。[{0}]", errcode));
}
;
}
// 出力を開始。
this.nバッファサイズsample = (int)(n希望バッファサイズms * this.db周波数 / 1000.0);
//this.nバッファサイズsample = (int) nバッファサイズbyte;
if (!BassAsio.BASS_ASIO_Start(this.nバッファサイズsample)) // 範囲外の値を指定した場合は自動的にデフォルト値に設定される。
{
BASSError err = BassAsio.BASS_ASIO_ErrorGetCode();
BassAsio.BASS_ASIO_Free();
Bass.BASS_Free();
this.bIsBASSFree = true;
throw new Exception("ASIO デバイス出力開始に失敗しました。" + err.ToString());
}
else
{
int n遅延sample = BassAsio.BASS_ASIO_GetLatency(false); // この関数は BASS_ASIO_Start() 後にしか呼び出せない。
int n希望遅延sample = (int)(n希望バッファサイズms * this.db周波数 / 1000.0);
this.n実バッファサイズms = this.n実出力遅延ms = (long)(n遅延sample * 1000.0f / this.db周波数);
Trace.TraceInformation("ASIO デバイス出力開始：バッファ{0}sample(希望{1}) [{2}ms(希望{3}ms)]", n遅延sample, n希望遅延sample, this.n実出力遅延ms, n希望バッファサイズms);
}
}
public void przygotowanie_odtwarzania()
{
//czas odtwarzania probki
audio_stoper_length = plik_wejsciowy.get_sample_length(current_sample);
try
{
BassAsio.BASS_ASIO_Stop();
BassAsio.BASS_ASIO_Free();
}
catch
{ }
//=================================================================================
// Kopiowanie całego strumienia audio do pamięci
//
//otwarcie pliku audio, pobranie jego wielkosci
//wczytanie pliku do buforu
//zamkniecie pliku
//utworzenie uchwytu, ktory zapobiegnie usunieciu pliku
//ustawienie czasu odtwarzania
//=================================================================================
FileStream fs = File.OpenRead(plik_wejsciowy.get_audio_samp(current_sample));
byte[] temp = new byte[44];
fs.Read(temp, 0, 44);
long lf = 44 + BitConverter.ToUInt32(temp, 40);
length = lf + BitConverter.ToUInt32(temp, 28);
audio_buffer = new byte[length];
for (long i = 0; i < length; i++)
{
audio_buffer[i] = 0;
}
fs.Position = 0;
fs.Read(audio_buffer, 0, (int)lf);
fs.Close();
_hGCFile = GCHandle.Alloc(audio_buffer, GCHandleType.Pinned);
//=================================================================================
// Przygotowanie całego BASS_Asio
//=================================================================================
Asio_Setup(urzadzenie);
if (!BassAsio.BASS_ASIO_Start(0))
{
// BASSError blad = BassAsio.BASS_ASIO_ErrorGetCode();
// MessageBox.Show("błąd odtwarzania: " + blad.ToString());
}
#region log: poprawne rozpoczecie odtwarzania sampli
if (!File.Exists(@"log.txt"))
{
using (StreamWriter writer = new StreamWriter(@"log.txt", true))
{
string tmp = "log file for experiment";
writer.WriteLine(tmp);
}
}
try
{
using (StreamWriter writer = new StreamWriter(@"log.txt", true))
{
string date_time = DateTime.Now.ToString();
string tmp = date_time + " poprawnie rozpoczecie odtarzania sampli: \n\t" + plik_wejsciowy.get_video_samp(current_sample) + "\n\t" + plik_wejsciowy.get_audio_samp(current_sample);
writer.WriteLine(tmp);
}
}
catch
{ }
#endregion
timer1.Interval = audio_stoper_length;
timer1.Enabled = true;
}
public static void Start()
{
BassAsio.BASS_ASIO_SetDevice(m_asiodevice);
BassAsio.BASS_ASIO_Start(0);
}
public void Evaluate(int SpreadMax)
{
try
{
#region Channel and device
if (this.FPinInChannels.PinIsChanged || this.FPinInDevice.PinIsChanged)
{
double dbldevice;
this.FPinInDevice.GetValue(0, out dbldevice);
this.FDeviceIndex = Convert.ToInt32(dbldevice);
if (this.FDeviceIndex != -1)
{
BassAsio.BASS_ASIO_Init(this.FDeviceIndex);
BassAsio.BASS_ASIO_SetDevice(this.FDeviceIndex);
}
this.FOutputHandled.Clear();
BassAsio.BASS_ASIO_Stop();
BassAsio.BASS_ASIO_ChannelReset(false, -1, BASSASIOReset.BASS_ASIO_RESET_PAUSE | BASSASIOReset.BASS_ASIO_RESET_JOIN);
if (this.FDeviceIndex != -1 && this.FPinInChannels.IsConnected)
{
int asiooutindex = 0;
double dhandle;
for (int i = 0; i < this.FPinInChannels.SliceCount; i++)
{
this.FPinInChannels.GetValue(i, out dhandle);
int handle = Convert.ToInt32(dhandle);
if (handle != 0 && handle != -1)
{
ChannelInfo channel = this.manager.GetChannel(handle);
if (channel.BassHandle == null)
{
//Initialize channel (in nosound)
channel.Initialize(0);
}
//Check if the channel has its own handler
if (!BassAsioUtils.InputChannels.ContainsKey(handle))
{
BASS_CHANNELINFO info = Bass.BASS_ChannelGetInfo(channel.BassHandle.Value);
BassAsio.BASS_ASIO_ChannelEnable(false, asiooutindex, myAsioProc, new IntPtr(handle));
if (info.chans == 1)
{
//No need to join on mono channels
asiooutindex++;
}
else
{
for (int chan = 1; chan < info.chans; chan++)
{
bool join = BassAsio.BASS_ASIO_ChannelJoin(false, asiooutindex + chan, asiooutindex);
if (!join)
{
this.FHost.Log(TLogType.Error, "Error: join failed");
this.FHost.Log(TLogType.Error, BassAsio.BASS_ASIO_ErrorGetCode().ToString());
}
}
BassAsio.BASS_ASIO_ChannelSetFormat(false, asiooutindex, BASSASIOFormat.BASS_ASIO_FORMAT_FLOAT);
BassAsio.BASS_ASIO_ChannelSetRate(false, asiooutindex, (double)info.freq);
BassAsio.BASS_ASIO_SetRate((double)info.freq);
asiooutindex += info.chans;
}
}
else
{
BassAsioHandler handler = BassAsioUtils.InputChannels[handle].Handler;
handler.SetMirror(asiooutindex);
asiooutindex += 2;
this.FOutputHandled.Add(asiooutindex);
this.FOutputHandled.Add(asiooutindex + 1);
}
}
}
bool start = BassAsio.BASS_ASIO_Start(0);
if (!start)
{
this.FPinErrorCode.SetString(0, BassAsio.BASS_ASIO_ErrorGetCode().ToString());
this.FHost.Log(TLogType.Error, "Error: Start failed");
this.FHost.Log(TLogType.Error, BassAsio.BASS_ASIO_ErrorGetCode().ToString());
}
else
{
this.FPinErrorCode.SetString(0, "OK");
}
UpdateChannels();
}
}
if (FControlPanel.PinIsChanged)
{
double v;
FControlPanel.GetValue(0, out v);
if (v > 0.5)
{
BassAsio.BASS_ASIO_ControlPanel();
}
}
#endregion
#region Volume
if (this.FPinInVolumeOutput.PinIsChanged)
{
if (this.FDeviceIndex != -1 || this.FPinInVolumeOutput.SliceCount > 0)
{
BASS_ASIO_INFO deviceinfo = BassAsio.BASS_ASIO_GetInfo();
int current = 0;
for (int i = 0; i < deviceinfo.outputs; i++)
{
double vol;
this.FPinInVolumeOutput.GetValue(current, out vol);
BassAsio.BASS_ASIO_ChannelSetVolume(false, i, (float)vol);
//Bin for the channels
current++;
if (current == this.FPinInVolumeOutput.SliceCount)
{
current = 0;
}
}
}
}
#endregion
#region Is Active Pin
if (this.FPinInActive.PinIsChanged)
{
UpdateChannels();
}
#endregion
}
catch (Exception ex)
{
this.FHost.Log(TLogType.Error, ex.Message);
this.FHost.Log(TLogType.Error, ex.StackTrace);
}
}
