public void CorrectOffset()
{
var stereoSampleProvider = new TestSampleProvider(44100, 2)
{
UseConstValue = true,
ConstValue = 1
};
var mono = stereoSampleProvider.ToMono();
var bufferLength = 30;
var offset = 10;
var samples = 10;
// [10,20) in buffer will be filled with 1
var buffer = new float[bufferLength];
var read = mono.Read(buffer, offset, samples);
Assert.AreEqual(samples, read, "samples read");
for (int i = 0; i < bufferLength; i++)
{
var sample = buffer[i];
if (i < offset || i >= offset + samples)
{
Assert.AreEqual(0, sample, "not in Read range");
}
else
{
Assert.AreNotEqual(0, sample, "in Read range");
}
}
}
public void CorrectOutputFormat()
{
var stereoSampleProvider = new TestSampleProvider(44100, 2);
var mono = stereoSampleProvider.ToMono(0f, 1f);
Assert.AreEqual(WaveFormatEncoding.IeeeFloat, mono.WaveFormat.Encoding);
Assert.AreEqual(1, mono.WaveFormat.Channels);
Assert.AreEqual(44100, mono.WaveFormat.SampleRate);
}
public void RightChannelOnly()
{
var stereoSampleProvider = new TestSampleProvider(44100, 2);
var mono = stereoSampleProvider.ToMono(0f, 1f);
var samples = 1000;
var buffer = new float[samples];
var read = mono.Read(buffer, 0, buffer.Length);
Assert.AreEqual(buffer.Length, read, "samples read");
for (int sample = 0; sample < samples; sample++)
{
Assert.AreEqual(1 + 2*sample, buffer[sample], "sample #" + sample);
}
}
public void RightChannelOnly()
{
var stereoSampleProvider = new TestSampleProvider(44100, 2);
var mono = stereoSampleProvider.ToMono(0f, 1f);
var samples = 1000;
var buffer = new float[samples];
var read = mono.Read(buffer, 0, buffer.Length);
Assert.AreEqual(buffer.Length, read, "samples read");
for (int sample = 0; sample < samples; sample++)
{
Assert.AreEqual(1 + 2 * sample, buffer[sample], "sample #" + sample);
}
}