/// <summary>
/// Set the volume for the default waveOut device (device ID = 0)
/// </summary>
/// <param name="Volume"></param>
public void SetVolume(int Volume)
{
WaveFormatEx format = new WaveFormatEx();
IntPtr hWaveOut = IntPtr.Zero;
waveOutOpen(out hWaveOut, 0, format, IntPtr.Zero, 0, 0);
waveOutSetVolume(hWaveOut, Volume);
waveOutClose(hWaveOut);
}
/// <summary>
/// Set the volume for the default waveOut device (device ID = 0)
/// </summary>
/// <param name="Volume"></param>
public void SetVolume(int Volume)
{
WaveFormatEx format = new WaveFormatEx();
IntPtr hWaveOut = IntPtr.Zero;
waveOutOpen(out hWaveOut, 0, format, IntPtr.Zero, 0, 0);
waveOutSetVolume(hWaveOut, Volume);
waveOutClose(hWaveOut);
}
public override void LoadFromStream(Stream st)
{
m_posStart = st.Position - 4;
byte[] data = new byte[4];
st.Read(data, 0, 4);
m_nSize = BitConverter.ToInt32(data, 0);
data = new byte[18];
st.Read(data, 0, Math.Min(18, m_nSize));
m_fmt = new WaveFormatEx(data);
st.Position = m_posStart + m_nSize;
}
/// <summary>
/// Get the current volume setting for the default waveOut device (device ID = 0)
/// </summary>
/// <returns></returns>
public int GetVolume()
{
WaveFormatEx format = new WaveFormatEx();
IntPtr hWaveOut = IntPtr.Zero;
int volume = 0;
waveOutOpen(out hWaveOut, 0, format, IntPtr.Zero, 0, 0);
waveOutGetVolume(hWaveOut, ref volume);
waveOutClose(hWaveOut);
return volume;
}
/// <summary>
/// Get the current volume setting for the default waveOut device (device ID = 0)
/// </summary>
/// <returns></returns>
public int GetVolume()
{
WaveFormatEx format = new WaveFormatEx();
IntPtr hWaveOut = IntPtr.Zero;
int volume = 0;
waveOutOpen(out hWaveOut, 0, format, IntPtr.Zero, 0, 0);
waveOutGetVolume(hWaveOut, ref volume);
waveOutClose(hWaveOut);
return(volume);
}
internal static extern int waveInOpen(out IntPtr t, uint id, WaveFormatEx pwfx, IntPtr dwCallback, int dwInstance, int fdwOpen);
public static extern int waveOutOpen(out IntPtr t, int id, WaveFormatEx pwfx, IntPtr dwCallback, int dwInstance, int fdwOpen);
/// <summary>
/// Plays waveform contained in the given stream. Stream is exepcted to contain full riff header
/// </summary>
/// <param name="playStream">Stream with the waveform</param>
public void Play( Stream playStream )
{
if(m_playing) return;
MMChunk ck = MMChunk.FromStream(playStream);
if ( ck != null && ck.FourCC == FourCC.Riff )
{
if ( ck[0] is WaveChunk )
{
DataChunk dck = ck[0].FindChunk(FourCC.Data) as DataChunk;
if ( dck != null )
{
playStream = dck.BeginRead();
}
FmtChunk fck = ck[0].FindChunk(FourCC.Fmt) as FmtChunk;
if ( fck != null )
{
m_format = fck.WaveFormat;
}
}
}
if ( playStream == null )
{
throw new Exception("No valid WAV file has been opened");
}
#if!NDOC
if ( m_qBuffers == null )
m_qBuffers = new Queue(MaxBuffers);
if ( m_HandleMap == null )
m_HandleMap = new Hashtable(MaxBuffers);
// create a window to catch waveOutxxx messages
SoundMessageWindow mw = new SoundMessageWindow();
// wire in events
mw.WaveOpenMessage += new WaveOpenHandler(mw_WaveOpenMessage);
mw.WaveCloseMessage += new WaveCloseHandler(mw_WaveCloseMessage);
mw.WaveDoneMessage += new WaveDoneHandler(mw_WaveDoneMessage);
// add it to the global array
int i = m_mwArray.Add(mw);
m_streamArray.Add(playStream);
// open the waveOut device and register the callback
CheckWaveError(Wave.waveOutOpen(out m_hWaveOut, m_deviceID, m_format, ((SoundMessageWindow)m_mwArray[i]).Hwnd, 0, CALLBACK_WINDOW));
RefillPlayBuffers();
Monitor.Enter(m_qBuffers.SyncRoot);
WaveHeader hdr = m_qBuffers.Dequeue() as WaveHeader;
Monitor.Exit(m_qBuffers.SyncRoot);
// play the file
int ret = Wave.waveOutWrite(m_hWaveOut, hdr.Header, hdr.HeaderLength);
CheckWaveError(ret);
m_playing = true;
#endif
}
/// <summary>
/// Record sound data for specified number of seconds using given wave format
/// The stream will be a properly formatted RIFF file
/// </summary>
/// <param name="st">Stream into which recorded samples are written</param>
/// <param name="Seconds">Seconds of data to record</param>
/// <param name="SoundFormat">Sound format to record in.</param>
public void RecordFor(Stream st, short Seconds, SoundFormats SoundFormat)
{
m_hWaveIn = IntPtr.Zero;
// only allow 1 recording session at a time
if(recording)
{
throw new InvalidOperationException("Already recording");
}
// set our global flag
recording = true;
if ( m_qBuffers == null )
m_qBuffers = new Queue(MaxBuffers);
if ( m_HandleMap == null )
m_HandleMap = new Hashtable(MaxBuffers);
m_recformat = new WaveFormatEx();
#if !NDOC
// create the callback message window
m_recmw = new SoundMessageWindow();
m_recmw.WaveDoneMessage +=new WaveDoneHandler(m_recmw_WaveDoneMessage);
m_recmw.WaveCloseMessage +=new WaveCloseHandler(mw_WaveCloseMessage);
m_recmw.WaveOpenMessage += new WaveOpenHandler(mw_WaveOpenMessage);
#endif
// set up format
#region long format switch()
switch(SoundFormat)
{
case SoundFormats.Mono16bit11kHz:
m_recformat.Channels = 1;
m_recformat.SamplesPerSec = 11025;
m_recformat.BitsPerSample = 16;
break;
case SoundFormats.Mono16bit22kHz:
m_recformat.Channels = 1;
m_recformat.SamplesPerSec = 22050;
m_recformat.BitsPerSample = 16;
break;
case SoundFormats.Mono16bit44kHz:
m_recformat.Channels = 1;
m_recformat.SamplesPerSec = 44100;
m_recformat.BitsPerSample = 16;
break;
case SoundFormats.Mono8bit11kHz:
m_recformat.Channels = 1;
m_recformat.SamplesPerSec = 11025;
m_recformat.BitsPerSample = 8;
break;
case SoundFormats.Mono8bit22kHz:
m_recformat.Channels = 1;
m_recformat.SamplesPerSec = 22050;
m_recformat.BitsPerSample = 8;
break;
case SoundFormats.Mono8bit44kHz:
m_recformat.Channels = 1;
m_recformat.SamplesPerSec = 44100;
m_recformat.BitsPerSample = 8;
break;
case SoundFormats.Stereo16bit11kHz:
m_recformat.Channels = 2;
m_recformat.SamplesPerSec = 11025;
m_recformat.BitsPerSample = 16;
break;
case SoundFormats.Stereo16bit22kHz:
m_recformat.Channels = 2;
m_recformat.SamplesPerSec = 22050;
m_recformat.BitsPerSample = 16;
break;
case SoundFormats.Stereo16bit44kHz:
m_recformat.Channels = 2;
m_recformat.SamplesPerSec = 44100;
m_recformat.BitsPerSample = 16;
break;
case SoundFormats.Stereo8bit11kHz:
m_recformat.Channels = 2;
m_recformat.SamplesPerSec = 11025;
m_recformat.BitsPerSample = 8;
break;
case SoundFormats.Stereo8bit22kHz:
m_recformat.Channels = 2;
m_recformat.SamplesPerSec = 22050;
m_recformat.BitsPerSample = 8;
break;
case SoundFormats.Stereo8bit44kHz:
m_recformat.Channels = 2;
m_recformat.SamplesPerSec = 44100;
m_recformat.BitsPerSample = 8;
break;
}
#endregion long format switch()
m_recformat.FormatTag = WAVE_FORMAT_PCM;
m_recformat.AvgBytesPerSec = m_recformat.SamplesPerSec * m_recformat.Channels;
m_recformat.BlockAlign = (short)((m_recformat.Channels * m_recformat.BitsPerSample) / 8);
m_recformat.Size = 0;
m_ck = new RiffChunk(st);
m_ck.BeginWrite();
WaveChunk wck = m_ck.CreateSubChunk(FourCC.Wave, st) as WaveChunk;
wck.BeginWrite();
FmtChunk fck = wck.CreateSubChunk(FourCC.Fmt, st) as FmtChunk;
fck.BeginWrite();
fck.WaveFormat = m_recformat;
fck.Write(fck.WaveFormat.GetBytes());
fck.EndWrite();
DataChunk dck = wck.CreateSubChunk(FourCC.Data, st) as DataChunk;
m_streamRecord = dck.BeginWrite();
#if !NDOC
// check for support of selected format
CheckWaveError(Wave.waveInOpen(out m_hWaveIn, WAVE_MAPPER, m_recformat, IntPtr.Zero, 0, WAVE_FORMAT_QUERY));
// open wave device
CheckWaveError(Wave.waveInOpen(out m_hWaveIn, (uint)m_deviceID, m_recformat, m_recmw.Hwnd, 0, CALLBACK_WINDOW));
m_recBufferSize = (int)(Math.Min( (int)Seconds, BufferLen ) * m_recformat.SamplesPerSec * m_recformat.Channels);
for ( int i = 0; i < 2; i ++ )
{
WaveHeader hdr = GetNewRecordBuffer( m_recBufferSize );
// send the buffer to the device
CheckWaveError(Wave.waveInAddBuffer(m_hWaveIn, hdr.Header, hdr.HeaderLength));
}
// begin recording
CheckWaveError(Wave.waveInStart(m_hWaveIn));
recordingFinished = false;
m_recTimer = new Timer(new TimerCallback(RecTimerCallback), this, Seconds * 1000, Timeout.Infinite);
#endif
}
internal static extern int waveInOpen(out IntPtr t, uint id, WaveFormatEx pwfx, IntPtr dwCallback, int dwInstance, int fdwOpen);
public static extern int waveOutOpen(out IntPtr t, int id, WaveFormatEx pwfx, IntPtr dwCallback, int dwInstance, int fdwOpen);
public FmtChunk(Stream st, WaveFormatEx fmt): base(new FourCC('f', 'm', 't', ' '), st)
{
m_fmt = fmt;
}
