/// <summary>
/// Helper function to retrieve a WaveFormat structure from a pointer
/// </summary>
/// <param name="pointer">Pointer to the WaveFormat rawdata</param>
/// <returns>WaveFormat structure</returns>
public unsafe static WaveFormat MarshalFrom(IntPtr pointer)
{
if (pointer == IntPtr.Zero)
{
return(null);
}
var pcmWaveFormat = *(__PcmNative *)pointer;
var encoding = pcmWaveFormat.waveFormatTag;
// Load simple PcmWaveFormat if channels <= 2 and encoding is Pcm, IeeFloat, Wmaudio2, Wmaudio3
// See http://msdn.microsoft.com/en-us/library/microsoft.directx_sdk.xaudio2.waveformatex%28v=vs.85%29.aspx
if (pcmWaveFormat.channels <= 2 && (encoding == WaveFormatEncoding.Pcm || encoding == WaveFormatEncoding.IeeeFloat || encoding == WaveFormatEncoding.Wmaudio2 || encoding == WaveFormatEncoding.Wmaudio3))
{
var waveFormat = new WaveFormat();
waveFormat.__MarshalFrom(ref pcmWaveFormat);
return(waveFormat);
}
if (encoding == WaveFormatEncoding.Extensible)
{
var waveFormat = new WaveFormatExtensible();
waveFormat.__MarshalFrom(ref *(WaveFormatExtensible.__Native *)pointer);
return(waveFormat);
}
if (encoding == WaveFormatEncoding.Adpcm)
{
var waveFormat = new WaveFormatAdpcm();
waveFormat.__MarshalFrom(ref *(WaveFormatAdpcm.__Native *)pointer);
return(waveFormat);
}
throw new InvalidOperationException(string.Format("Unsupported WaveFormat [{0}]", encoding));
}
internal void __MarshalTo(ref WaveFormatExtensible.__Native @ref)
{
base.__MarshalTo(ref @ref.waveFormat);
@ref.wValidBitsPerSample = this.wValidBitsPerSample;
@ref.dwChannelMask = this.ChannelMask;
@ref.subFormat = this.GuidSubFormat;
}
public static unsafe WaveFormat MarshalFrom(IntPtr pointer)
{
if (pointer == IntPtr.Zero)
{
return((WaveFormat)null);
}
WaveFormat.__PcmNative @ref = *(WaveFormat.__PcmNative *)(void *) pointer;
WaveFormatEncoding waveFormatEncoding = @ref.waveFormatTag;
if ((int)@ref.channels <= 2 && (waveFormatEncoding == WaveFormatEncoding.Pcm || waveFormatEncoding == WaveFormatEncoding.IeeeFloat || (waveFormatEncoding == WaveFormatEncoding.Wmaudio2 || waveFormatEncoding == WaveFormatEncoding.Wmaudio3)))
{
WaveFormat waveFormat = new WaveFormat();
waveFormat.__MarshalFrom(ref @ref);
return(waveFormat);
}
else if (waveFormatEncoding == WaveFormatEncoding.Extensible)
{
WaveFormatExtensible formatExtensible = new WaveFormatExtensible();
formatExtensible.__MarshalFrom(ref *(WaveFormatExtensible.__Native *)(void *) pointer);
return((WaveFormat)formatExtensible);
}
else
{
if (waveFormatEncoding != WaveFormatEncoding.Adpcm)
{
throw new InvalidOperationException(string.Format("Unsupported WaveFormat [{0}]", (object)waveFormatEncoding));
}
WaveFormatAdpcm waveFormatAdpcm = new WaveFormatAdpcm();
waveFormatAdpcm.__MarshalFrom(ref *(WaveFormatAdpcm.__Native *)(void *) pointer);
return((WaveFormat)waveFormatAdpcm);
}
}
public X3DAudioEngine()
{
_xaudio2 = new XAudio2();
_masteringVoice = new MasteringVoice(_xaudio2);
_deviceFormat = _xaudio2.GetDeviceDetails(0).OutputFormat;
_x3dAudio = new X3DAudio(_deviceFormat.ChannelMask);
Position = new Vector3D(0, 0, 0);
Rotation = System.Windows.Media.Media3D.Quaternion.Identity;
}
public override void Setup(WaveFormatEx format)
{
_format = new WaveFormatExtensible(format.nSamplesPerSec, format.wBitsPerSample, format.nChannels);
_voice = new SourceVoice(_xaudio2, _format);
_voice.StreamEnd += _voice_StreamEnd;
_voice.VoiceError += _voice_VoiceError;
_emitter = new Emitter
{
ChannelAzimuths = GetAzimuths(_format.Channels),
ChannelCount = _format.Channels,
ChannelRadius = 10,
CurveDistanceScaler = float.MinValue,
OrientFront = new Vector3(0, 0, 1),
OrientTop = new Vector3(0, 1, 0),
Position = new Vector3(0, 0, 0),
Velocity = new Vector3(0, 0, 0)
};
}
/// <summary>
/// Helper function to retrieve a WaveFormat structure from a pointer
/// </summary>
/// <param name="pointer">Pointer to the WaveFormat rawdata</param>
/// <returns>WaveFormat structure</returns>
public static unsafe WaveFormat MarshalFrom(IntPtr pointer)
{
if (pointer == IntPtr.Zero) return null;
var pcmWaveFormat = *(__PcmNative*)pointer;
var encoding = pcmWaveFormat.waveFormatTag;
// Load simple PcmWaveFormat if channels <= 2 and encoding is Pcm, IeeFloat, Wmaudio2, Wmaudio3
// See http://msdn.microsoft.com/en-us/library/microsoft.directx_sdk.xaudio2.waveformatex%28v=vs.85%29.aspx
if (pcmWaveFormat.channels <= 2 && (encoding == WaveFormatEncoding.Pcm || encoding == WaveFormatEncoding.IeeeFloat || encoding == WaveFormatEncoding.Wmaudio2 || encoding == WaveFormatEncoding.Wmaudio3))
{
var waveFormat = new WaveFormat();
waveFormat.__MarshalFrom(ref pcmWaveFormat);
return waveFormat;
}
if (encoding == WaveFormatEncoding.Extensible)
{
var waveFormat = new WaveFormatExtensible();
waveFormat.__MarshalFrom(ref *(WaveFormatExtensible.__Native*)pointer);
return waveFormat;
}
if (encoding == WaveFormatEncoding.Adpcm)
{
var waveFormat = new WaveFormatAdpcm();
waveFormat.__MarshalFrom(ref *(WaveFormatAdpcm.__Native*)pointer);
return waveFormat;
}
throw new InvalidOperationException(string.Format("Unsupported WaveFormat [{0}]", encoding));
}
public MyX3DAudio(WaveFormatExtensible format)
{
m_x3dAudio = new X3DAudio(format.ChannelMask);
m_dsp = new DspSettings(1, format.Channels);
}
internal unsafe void __MarshalFrom(ref DeviceDetails.__Native @ref)
{
fixed (char* ptr = &@ref.DeviceID)
{
this.DeviceID = Utilities.PtrToStringUni((IntPtr)((void*)ptr), 256);
}
fixed (char* ptr2 = &@ref.DisplayName)
{
this.DisplayName = Utilities.PtrToStringUni((IntPtr)((void*)ptr2), 256);
}
this.Role = @ref.Role;
this.OutputFormat = new WaveFormatExtensible();
this.OutputFormat.__MarshalFrom(ref @ref.OutputFormat);
}
public static unsafe WaveFormat MarshalFrom(IntPtr pointer)
{
if (pointer == IntPtr.Zero)
return (WaveFormat) null;
WaveFormat.__PcmNative @ref = *(WaveFormat.__PcmNative*) (void*) pointer;
WaveFormatEncoding waveFormatEncoding = @ref.waveFormatTag;
if ((int) @ref.channels <= 2 && (waveFormatEncoding == WaveFormatEncoding.Pcm || waveFormatEncoding == WaveFormatEncoding.IeeeFloat || (waveFormatEncoding == WaveFormatEncoding.Wmaudio2 || waveFormatEncoding == WaveFormatEncoding.Wmaudio3)))
{
WaveFormat waveFormat = new WaveFormat();
waveFormat.__MarshalFrom(ref @ref);
return waveFormat;
}
else if (waveFormatEncoding == WaveFormatEncoding.Extensible)
{
WaveFormatExtensible formatExtensible = new WaveFormatExtensible();
formatExtensible.__MarshalFrom(ref *(WaveFormatExtensible.__Native*) (void*) pointer);
return (WaveFormat) formatExtensible;
}
else
{
if (waveFormatEncoding != WaveFormatEncoding.Adpcm)
throw new InvalidOperationException(string.Format("Unsupported WaveFormat [{0}]", (object) waveFormatEncoding));
WaveFormatAdpcm waveFormatAdpcm = new WaveFormatAdpcm();
waveFormatAdpcm.__MarshalFrom(ref *(WaveFormatAdpcm.__Native*) (void*) pointer);
return (WaveFormat) waveFormatAdpcm;
}
}
private void SetUpAudioDevice()
{
if (AudioDevice == null)
{
AudioDevice = new DirectSound();
AudioDevice.SetCooperativeLevel(new WindowInteropHelper(Owner).Handle, CooperativeLevel.Normal);
}
if (AudioBuffer == null)
{
BufferDesc = new SoundBufferDescription();
BufferDesc.Flags = BufferFlags.GlobalFocus | BufferFlags.GetCurrentPosition2 | BufferFlags.ControlVolume;
BufferDesc.AlgorithmFor3D = Guid.Empty;
//Вывод звука в Ависинте (через DirectShow\VFW)
//v2.57 | global OPT_AllowFloatAudio = True (по дефолту FLOAT преобразуется в 16бит, а 32бит и 24бит - выводятся как есть)
//v2.58 | global OPT_UseWaveExtensible = True (по дефолту WaveFormatExtensible не используется, даже для многоканального и многобитного звука)
//v2.60 | global OPT_dwChannelMask(int v) (переназначение дефолтной конфигурации каналов при использовании WaveFormatExtensible)
//FFCHANNEL_LAYOUT в FFMS2
if (reader.GetVarBoolean("OPT_UseWaveExtensible", true)) //У нас свой дефолт
{
#region WaveFormatExtensible
WaveFormatExtensible format = new WaveFormatExtensible(reader.Samplerate, reader.BitsPerSample, reader.Channels);
//SharpDX считает, что весь 32-битный звук - FLOAT
if (reader.Clip.SampleType == AudioSampleType.INT32)
format.GuidSubFormat = new Guid("00000001-0000-0010-8000-00aa00389b71"); //PCM
#region channels
//AviSynth (дефолт)
//Chan. Mask MS channels
//----- ------ -----------------------
//1 0x0004 FC 4
//2 0x0003 FL FR 3
//3 0x0007 FL FR FC 7
//4 0x0033 FL FR BL BR 51
//5 0x0037 FL FR FC BL BR 55
//6 0x003F FL FR FC LF BL BR 63
//7 0x013F FL FR FC LF BL BR BC 319
//8 0x063F FL FR FC LF BL BR SL SR 1599
int mask = reader.GetVarInteger("OPT_dwChannelMask", -1);
if (mask != -1) format.ChannelMask = (Speakers)mask;
else if (reader.Channels == 1) format.ChannelMask = Speakers.Mono; //4
//else if (reader.Channels == 2) format.ChannelMask = Speakers.Stereo; //3
else if (reader.Channels == 3) format.ChannelMask = Speakers.Stereo | Speakers.FrontCenter; //7 //TwoPointOne; //11
else if (reader.Channels == 4) format.ChannelMask = Speakers.Quad; //51
else if (reader.Channels == 5) format.ChannelMask = Speakers.Quad | Speakers.FrontCenter; //55 //FourPointOne; //59
//else if (reader.Channels == 6) format.ChannelMask = Speakers.FivePointOne; //63
else if (reader.Channels == 7) format.ChannelMask = Speakers.FivePointOne | Speakers.BackCenter; //319
else if (reader.Channels == 8) format.ChannelMask = Speakers.SevenPointOneSurround; //1599 //SevenPointOne; //255
/*else //Этот способ уже был использован при вызове конструктора, хз насколько он корректный и насколько корректно всё то, что выше..
{
//NAudio\SharpDX
int dwChannelMask = 0;
for (int n = 0; n < 1; n++) dwChannelMask |= (1 << n);
format.ChannelMask = (Speakers)dwChannelMask;
//ch mask (SlimDX) [SharpDX]
//1 1 (FrontLeft) [FrontLeft]
//2 3 (Stereo) [FrontLeft | FrontRight]
//3 7 (Mono) [FrontLeft | FrontRight | FrontCenter]
//4 15 (Mono) [FrontLeft | FrontRight | FrontCenter | LowFrequency]
//5 31 (TwoPointOne | Mono | BackLeft) [FrontLeft | FrontRight | FrontCenter | LowFrequency | BackLeft]
//6 63 (FivePointOne) [FrontLeft | FrontRight | FrontCenter | LowFrequency | BackLeft | BackRight]
//7 127 (FivePointOne | FrontLeftOfCenter) [FrontLeft | FrontRight | FrontCenter | LowFrequency | BackLeft | BackRight | FrontLeftOfCenter]
//8 255 (SevenPointOne) [FrontLeft | FrontRight | FrontCenter | LowFrequency | BackLeft | BackRight | FrontLeftOfCenter | FrontRightOfCenter]
}*/
#endregion
samplesPerHalfBuff = (int)((format.SampleRate / 2) * k); //Кол-во сэмплов на половину буфера
bytesPerSample = format.BlockAlign;
BufferDesc.BufferBytes = samplesPerHalfBuff * format.BlockAlign * 2; //Кол-во байт на полный буфер
BufferDesc.Format = format;
#endregion
}
else
{
#region WaveFormat
WaveFormatEncoding tag = (reader.Clip.SampleType == AudioSampleType.FLOAT) ? WaveFormatEncoding.IeeeFloat : WaveFormatEncoding.Pcm;
WaveFormat format = WaveFormat.CreateCustomFormat(tag, reader.Samplerate, reader.Channels, reader.Clip.AvgBytesPerSec, reader.Channels * reader.Clip.BytesPerSample, reader.BitsPerSample);
samplesPerHalfBuff = (int)((format.SampleRate / 2) * k); //Кол-во сэмплов на половину буфера
bytesPerSample = format.BlockAlign;
BufferDesc.BufferBytes = samplesPerHalfBuff * format.BlockAlign * 2; //Кол-во байт на полный буфер
BufferDesc.Format = format;
#endregion
}
AudioBuffer = new SecondarySoundBuffer(AudioDevice, BufferDesc);
if (ABuffer == null)
ABuffer = new byte[BufferDesc.BufferBytes / 2];
if (!h.IsAllocated)
h = GCHandle.Alloc(ABuffer, GCHandleType.Pinned);
}
}
