public WaveWriter(AudioFile AF, string TargetFile)
{
InitializeComponent();
this.prbBytesWritten.Select();
this.txtSource.Text = AF.Path;
this.txtTarget.Text = TargetFile;
this.AF = AF;
this.AFS = AF.OpenStream(false);
this.FS = new FileStream(TargetFile, FileMode.Create, FileAccess.Write);
}
public AudioFileStream OpenStream(bool AddWAVHeader)
{
if (this.Type_ == AudioFileType.Unknown || this.Header_ == null)
{
return(null);
}
if (!AudioFileStream.IsFormatSupported(this.Header_.SampleFormat))
{
return(null);
}
return(new AudioFileStream(this.Path_, this.Header_, AddWAVHeader));
}
private void StopPlayback()
{
lock (this) {
if (this.CurrentBuffer != null) {
this.CurrentBuffer.Stop();
this.CurrentBuffer.Dispose();
this.CurrentBuffer = null;
}
if (this.CurrentStream != null) {
this.CurrentStream.Close();
this.CurrentStream = null;
}
this.AudioUpdateThread = null;
}
this.btnPause.Enabled = false;
this.btnPause.Text = "Pa&use";
this.btnStop.Enabled = false;
this.AudioIsLooping = false;
}
private void PlayFile(FileInfo FI)
{
lock (this) {
if (this.DS == null) {
this.DS = new DirectSound();
this.DS.SetCooperativeLevel(this.Handle, CooperativeLevel.Normal);
}
this.StopPlayback();
var bd = new SoundBufferDescription {
Format = new WaveFormat(FI.AudioFile.SampleRate, 16, FI.AudioFile.Channels),
BufferBytes = this.AudioBufferSize,
Flags = BufferFlags.GlobalFocus | BufferFlags.StickyFocus | BufferFlags.ControlVolume | BufferFlags.GetCurrentPosition2 | BufferFlags.ControlPositionNotify
};
this.CurrentBuffer = new SecondarySoundBuffer(this.DS, bd);
if (this.AudioUpdateTrigger == null)
this.AudioUpdateTrigger = new AutoResetEvent(false);
var chunkSize = this.AudioBufferSize / this.AudioBufferMarkers;
var updatePositions = new NotificationPosition[this.AudioBufferMarkers];
for (var i = 0; i < this.AudioBufferMarkers; ++i) {
updatePositions[i] = new NotificationPosition() {
WaitHandle = this.AudioUpdateTrigger,
Offset = chunkSize * i
};
}
this.CurrentBuffer.SetNotificationPositions(updatePositions);
this.CurrentStream = FI.AudioFile.OpenStream();
{
var bytes = new byte[this.CurrentBuffer.Capabilities.BufferBytes];
var readbytes = this.CurrentStream.Read(bytes, 0, this.CurrentBuffer.Capabilities.BufferBytes);
if (readbytes < this.CurrentBuffer.Capabilities.BufferBytes)
Array.Clear(bytes, readbytes, this.CurrentBuffer.Capabilities.BufferBytes - readbytes);
DataStream audiodata2;
var audiodata1 = this.CurrentBuffer.Lock(0, this.CurrentBuffer.Capabilities.BufferBytes, LockFlags.EntireBuffer, out audiodata2);
audiodata1.Write(bytes, 0, this.CurrentBuffer.Capabilities.BufferBytes);
this.CurrentBuffer.Unlock(audiodata1, audiodata2);
}
if (this.CurrentStream.Position < this.CurrentStream.Length) {
this.AudioUpdateTrigger.Reset();
this.AudioUpdateThread = new Thread(this.AudioUpdate);
this.AudioUpdateThread.Start();
this.btnPause.Enabled = true;
this.btnStop.Enabled = true;
this.AudioIsLooping = true;
}
else {
this.CurrentStream.Close();
this.CurrentStream = null;
this.AudioIsLooping = false;
}
this.CurrentBuffer.Play(0, (this.AudioIsLooping ? PlayFlags.Looping : PlayFlags.None));
}
}
private void PlayFile(FileInfo FI)
{
lock (this)
{
if (this.AudioDevice == null)
{
this.AudioDevice = new Device();
AudioDevice.SetCooperativeLevel(this, CooperativeLevel.Normal);
}
this.StopPlayback();
WaveFormat fmt = new WaveFormat();
fmt.FormatTag = WaveFormatTag.Pcm;
fmt.Channels = FI.AudioFile.Channels;
fmt.SamplesPerSecond = FI.AudioFile.SampleRate;
fmt.BitsPerSample = 16;
fmt.BlockAlign = (short)(FI.AudioFile.Channels * (fmt.BitsPerSample / 8));
fmt.AverageBytesPerSecond = fmt.SamplesPerSecond * fmt.BlockAlign;
BufferDescription BD = new BufferDescription(fmt);
BD.BufferBytes = this.AudioBufferSize;
BD.GlobalFocus = true;
BD.StickyFocus = true;
if (this.chkBufferedPlayback.Checked)
{
BD.ControlPositionNotify = true;
this.CurrentBuffer = new SecondaryBuffer(BD, this.AudioDevice);
if (this.AudioUpdateTrigger == null)
{
this.AudioUpdateTrigger = new AutoResetEvent(false);
}
int ChunkSize = this.AudioBufferSize / this.AudioBufferMarkers;
BufferPositionNotify[] UpdatePositions = new BufferPositionNotify[this.AudioBufferMarkers];
for (int i = 0; i < this.AudioBufferMarkers; ++i)
{
UpdatePositions[i] = new BufferPositionNotify();
UpdatePositions[i].EventNotifyHandle = this.AudioUpdateTrigger.SafeWaitHandle.DangerousGetHandle();
UpdatePositions[i].Offset = ChunkSize * i;
}
Notify N = new Notify(this.CurrentBuffer);
N.SetNotificationPositions(UpdatePositions);
this.CurrentStream = FI.AudioFile.OpenStream();
this.CurrentBuffer.Write(0, this.CurrentStream, this.CurrentBuffer.Caps.BufferBytes, LockFlag.EntireBuffer);
if (this.CurrentStream.Position < this.CurrentStream.Length)
{
this.AudioUpdateTrigger.Reset();
this.AudioUpdateThread = new Thread(new ThreadStart(this.AudioUpdate));
this.AudioUpdateThread.Start();
this.btnPause.Enabled = true;
this.btnStop.Enabled = true;
this.AudioIsLooping = true;
}
else
{
this.CurrentStream.Close();
this.CurrentStream = null;
this.AudioIsLooping = false;
}
}
else
{
this.CurrentStream = FI.AudioFile.OpenStream(true);
this.CurrentBuffer = new SecondaryBuffer(this.CurrentStream, BD, this.AudioDevice);
this.btnPause.Enabled = true;
this.btnStop.Enabled = true;
}
this.CurrentBuffer.Play(0, (this.AudioIsLooping ? BufferPlayFlags.Looping : BufferPlayFlags.Default));
}
}