public void CanAccessSamplesIndividuallyInAMonoFile()
{
var ms = new MemoryStream();
using (var writer = new WaveFileWriter( new IgnoreDisposeStream(ms), new WaveFormat(8000, 16, 1)))
{
writer.WriteSample(0.1f);
writer.WriteSample(0.2f);
writer.WriteSample(0.3f);
writer.WriteSample(0.4f);
}
ms.Position = 0;
using (var reader = new WaveFileForwardOnlyReader(new ForwardOnlyStream(ms)))
{
Assert.AreEqual(0.1f, reader.ReadNextSampleFrame()[0], 0.001f);
Assert.AreEqual(0.2f, reader.ReadNextSampleFrame()[0], 0.001f);
Assert.AreEqual(0.3f, reader.ReadNextSampleFrame()[0], 0.001f);
Assert.AreEqual(0.4f, reader.ReadNextSampleFrame()[0], 0.001f);
Assert.IsNull(reader.ReadNextSampleFrame());
}
}
public void CanAccessSamplesIndividuallyInAStereo24BitFile()
{
var ms = new MemoryStream();
using (var writer = new WaveFileWriter(new IgnoreDisposeStream(ms), new WaveFormat(44100, 24, 2)))
{
writer.WriteSample(0.1f);
writer.WriteSample(0.2f);
writer.WriteSample(0.3f);
writer.WriteSample(0.4f);
}
ms.Position = 0;
using (var reader = new WaveFileForwardOnlyReader(new ForwardOnlyStream(ms)))
{
var f1 = reader.ReadNextSampleFrame();
Assert.AreEqual(0.1f, f1[0], 0.0001f);
Assert.AreEqual(0.2f, f1[1], 0.0001f);
var f2 = reader.ReadNextSampleFrame();
Assert.AreEqual(0.3f, f2[0], 0.0001f);
Assert.AreEqual(0.4f, f2[1], 0.0001f);
Assert.IsNull(reader.ReadNextSampleFrame());
}
}
public void CanLoadAndReadVariousProblemWavFiles()
{
string testDataFolder = @"C:\Users\Mark\Downloads\NAudio";
if (!Directory.Exists(testDataFolder))
{
Assert.Ignore("{0} not found", testDataFolder);
}
foreach (string file in Directory.GetFiles(testDataFolder, "*.wav"))
{
string wavFile = Path.Combine(testDataFolder, file);
Debug.WriteLine(String.Format("Opening {0}", wavFile));
using (var reader = new WaveFileForwardOnlyReader(wavFile))
{
byte[] buffer = new byte[reader.WaveFormat.AverageBytesPerSecond];
int bytesRead;
int total = 0;
do
{
bytesRead = reader.Read(buffer, 0, buffer.Length);
total += bytesRead;
} while (bytesRead > 0);
Debug.WriteLine(String.Format("Read {0} bytes", total));
}
}
}
public void DisposeOfStreamWhenConstructedFromFilePath()
{
string tempFilePath = System.IO.Path.GetTempFileName();
System.IO.File.WriteAllText(tempFilePath, "Some test content");
try
{
var waveReader = new WaveFileForwardOnlyReader(tempFilePath);
Assert.Fail("Expected exception System.FormatException was not thrown for file missing a header.");
}
catch(FormatException ex)
{
Assert.IsNotNull(ex);
}
finally
{
System.IO.File.Delete(tempFilePath);
}
}
