public WaveStream GetStream(string path)
{
WaveStream ret = null;
string lp = path.ToLower();
if (lp.EndsWith(".wav"))
{
ret = new WaveFileReader(path);
if (ret.WaveFormat.Encoding != WaveFormatEncoding.Pcm && ret.WaveFormat.Encoding != WaveFormatEncoding.IeeeFloat)
{
ret = WaveFormatConversionStream.CreatePcmStream(ret);
ret = new BlockAlignReductionStream(ret);
}
}
else if (lp.EndsWith(".mp3"))
{
ret = new Mp3FileReader(path);
}
else if (lp.EndsWith(".aiff"))
{
ret = new AiffFileReader(path);
}
else if (lp.EndsWith(".wma"))
{
ret = new NAudio.WindowsMediaFormat.WMAFileReader(path);
}
return(ret);
}
static WaveStream GetWaveStream(string file)
{
WaveChannel32 inputStream = null;
WaveStream reader = null;
WaveStream work = null;
try
{
if (file.EndsWith(".ogg", StringComparison.OrdinalIgnoreCase))
{
work = new NVorbis.NAudioSupport.VorbisWaveReader(file);
//TODO: Switch to memory stream and test.
//work = new NVorbis.NAudioSupport.VorbisWaveReader(
}
else if (file.EndsWith(".aiff", StringComparison.OrdinalIgnoreCase))
{
work = new AiffFileReader(file);
}
else if (file.EndsWith(".mp3", StringComparison.OrdinalIgnoreCase))
{
work = new Mp3FileReader(file);
}
else if (file.EndsWith(".wma", StringComparison.OrdinalIgnoreCase))
{
work = new NAudio.WindowsMediaFormat.WMAFileReader(file);
}
reader = work;
work = null;
}
catch (Exception ex)
{
if (_log.IsWarnEnabled)
{
_log.Warn("Unable to get audio stream", ex);
}
}
finally
{
if (work != null)
{
work.Dispose();
}
}
try
{
if (reader != null)
{
inputStream = new WaveChannel32(reader);
}
}
catch (Exception ex)
{
if (_log.IsWarnEnabled)
{
_log.Warn("Error trying to set up inputStream", ex);
}
}
return(inputStream);
}
public static byte[] Wma_to_wav(string fil_n, byte ch, out byte[] mono)
{
byte[] mono2 = null;
Task a = Task.Run(() =>
{
WaveFormat format = new WaveFormat(48000, 16, 1);
try
{
using (NAudio.WindowsMediaFormat.WMAFileReader reader = new NAudio.WindowsMediaFormat.WMAFileReader(fil_n))
{
using (WaveFormatConversionStream stream = new WaveFormatConversionStream(format, reader))
{
mono2 = new byte[stream.Length];
stream.Read(mono2, 0, mono2.Length);
}
}
}
catch (Exception) { }
});
byte[] buffer = null;
try
{
WaveFormat format = new WaveFormat(48000, 16, ch);
using (NAudio.WindowsMediaFormat.WMAFileReader reader = new NAudio.WindowsMediaFormat.WMAFileReader(fil_n))
{
using (WaveFormatConversionStream stream = new WaveFormatConversionStream(format, reader))
{
buffer = new byte[stream.Length];
stream.Read(buffer, 0, buffer.Length);
}
}
}
catch (Exception) { }
a.Wait();
mono = mono2;
return(buffer);
}
