public void CanCreateResamplerStream()
{
//using (WaveFileReader reader = new WaveFileReader("C:\\Users\\Mark\\Recording\\REAPER\\ideas-2008-05-17.wav"))
using (WaveStream reader = new NullWaveStream(new WaveFormat(44100,16,1),1000 ))
{
using (ResamplerDmoStream resampler = new ResamplerDmoStream(reader, WaveFormat.CreateIeeeFloatWaveFormat(48000,2)))
{
Assert.Greater(resampler.Length, reader.Length, "Length");
Assert.AreEqual(0, reader.Position, "Position");
Assert.AreEqual(0, resampler.Position, "Position");
}
}
}
public void CanReadABlockFromResamplerStream()
{
//using (WaveFileReader reader = new WaveFileReader("C:\\Users\\Mark\\Recording\\REAPER\\ideas-2008-05-17.wav"))
WaveFormat inputFormat = new WaveFormat(44100, 16, 1);
using (WaveStream reader = new NullWaveStream(inputFormat, inputFormat.AverageBytesPerSecond * 20))
{
using (ResamplerDmoStream resampler = new ResamplerDmoStream(reader, WaveFormat.CreateIeeeFloatWaveFormat(48000, 2)))
{
// try to read 10 ms;
int bytesToRead = resampler.WaveFormat.AverageBytesPerSecond / 100;
byte[] buffer = new byte[bytesToRead];
int count = resampler.Read(buffer, 0, bytesToRead);
Assert.That(count > 0, "Bytes Read");
}
}
}
private void ResampleAWholeStream(WaveFormat inputFormat, WaveFormat outputFormat)
{
using (WaveStream reader = new NullWaveStream(inputFormat, inputFormat.AverageBytesPerSecond * 20))
{
using (ResamplerDmoStream resampler = new ResamplerDmoStream(reader, outputFormat))
{
// try to read 10 ms;
int bytesToRead = resampler.WaveFormat.AverageBytesPerSecond / 100;
byte[] buffer = new byte[bytesToRead];
int count;
int total = 0;
do
{
count = resampler.Read(buffer, 0, bytesToRead);
total += count;
//Assert.AreEqual(count, bytesToRead, "Bytes Read");
} while (count > 0);
//Debug.WriteLine(String.Format("Converted input length {0} to {1}", reader.Length, total));
}
}
}
private void CanCreateConversionStream(WaveFormat inputFormat, WaveFormat outputFormat)
{
WaveStream inputStream = new NullWaveStream(inputFormat, 10000);
using (WaveFormatConversionStream stream = new WaveFormatConversionStream(
outputFormat, inputStream))
{
byte[] buffer = new byte[stream.WaveFormat.AverageBytesPerSecond];
int totalRead = 0;
int bytesRead;
do
{
bytesRead = stream.Read(buffer, 0, buffer.Length);
totalRead += bytesRead;
} while (bytesRead > 0);
Debug.WriteLine(String.Format("Converted {0}", totalRead));
Assert.AreEqual(inputStream.Length, inputStream.Position);
}
}
