public void Rewind()
{
var asf = new AsfFile(filepath);
asf.Open();
soundStream = new AsfAudio(new AsfStream(asf, AsfStreamType.asfAudio, 0)).GetWaveStream();
asf.Close();
}
public void Rewind()
{
Dispose();
asf = new AsfFile(filepath);
var audioStream = new AsfStream(asf, AsfStreamType.asfAudio, 0);
soundStream = new AsfAudio(audioStream).GetWaveStream();
video = new AsfImageLoader(asf);
}
/// <summary>
/// Sets the end offset of the wave stream and returns the stream
/// </summary>
public WaveMemoryStream To(double offset)
{
if (StartOffset == null)
{
throw new ArgumentException("Must have a valid start offset");
}
EndOffset = offset;
return(WaveMemoryStream.FromFile(FileName, StartOffset.Value, EndOffset.Value));
}
public void Dispose()
{
if (soundStream != null)
soundStream.Dispose();
soundStream = null;
if (video != null)
video.Dispose();
video = null;
if (asf != null)
asf.Dispose();
asf = null;
}
/// <summary>
/// Get the PCM Wave memory stream for the extracted audio data
/// </summary>
public WaveMemoryStream GetWaveStream()
{
MemoryStream ms = new MemoryStream();
WriteTo(ms);
ms.Position = 0;
WaveMemoryStream waveMemoryStream = new WaveMemoryStream(ms,
(int)_asfStream.Configuration.AudioSampleRate,
_asfStream.Configuration.AudioBitsPerSample,
_asfStream.Configuration.AudioChannels);
return(waveMemoryStream);
}
private void WaveFormPlayButton_Click(object sender, RoutedEventArgs e)
{
try
{
double timeInSeconds = (double)startTimeOffset / 1000;
using(AsfStream asfStream = new AsfStream(AsfStreamType.asfAudio, ViewModelLocator.MainStatic.FileName, timeInSeconds))
using (AsfAudio asfAudio = new AsfAudio(asfStream))
{
//play a two second sample
byte[] data = asfAudio.GetSampleBytes(2 * (int) asfStream.Configuration.AudioSampleRate * asfStream.Configuration.AudioChannels);
WaveMemoryStream mwav = new WaveMemoryStream(data, (int)asfStream.Configuration.AudioSampleRate, asfStream.Configuration.AudioBitsPerSample, asfStream.Configuration.AudioChannels);
SoundPlayer sp = new SoundPlayer(mwav);
sp.Play();
}
}
catch (AsfStreamException) { }
}
public void Dispose()
{
soundStream.Dispose();
soundStream = null;
}
/// <summary>
/// Get the PCM Wave memory stream for the extracted audio data
/// </summary>
public WaveMemoryStream GetWaveStream()
{
MemoryStream ms = new MemoryStream();
WriteTo(ms);
ms.Position = 0;
WaveMemoryStream waveMemoryStream = new WaveMemoryStream(ms,
(int)_asfStream.Configuration.AudioSampleRate,
_asfStream.Configuration.AudioBitsPerSample,
_asfStream.Configuration.AudioChannels);
return waveMemoryStream;
}
