public void CheckMultiSourceRandomSeeking()
{
var stream1 = new SineGeneratorStream(44100, 440, new TimeSpan(0, 0, 1));
var stream2 = new SineGeneratorStream(44100, 440, new TimeSpan(0, 0, 1));
var cc = new ConcatenationStream(stream1, stream2);
int seekOffset = 200 * stream1.SampleBlockSize;
// Check seek into first segment
cc.Position = seekOffset;
Assert.AreEqual(seekOffset, cc.Position);
var bytesRead = StreamUtil.ReadAllAndCount(cc);
Assert.AreEqual(cc.Length - seekOffset, bytesRead);
// Check seek into second segment
cc.Position = stream1.Length + seekOffset;
Assert.AreEqual(stream1.Length + seekOffset, cc.Position);
bytesRead = StreamUtil.ReadAllAndCount(cc);
Assert.AreEqual(cc.Length - stream1.Length - seekOffset, bytesRead);
// Check seek back into first segment
cc.Position = seekOffset;
Assert.AreEqual(seekOffset, cc.Position);
bytesRead = StreamUtil.ReadAllAndCount(cc);
Assert.AreEqual(cc.Length - seekOffset, bytesRead);
}
public void CheckMultiSourceSeekToEnd()
{
var stream1 = new SineGeneratorStream(44100, 440, new TimeSpan(0, 0, 1));
var stream2 = new SineGeneratorStream(44100, 440, new TimeSpan(0, 0, 1));
var cc = new ConcatenationStream(stream1, stream2);
// Seek to the end where zero bytes are expected to be read
cc.Position = cc.Length;
var bytesRead = StreamUtil.ReadAllAndCount(cc);
Assert.AreEqual(0, bytesRead);
}
public void CheckSeek()
{
var sine = new SineGeneratorStream(44100, 440, new TimeSpan(0, 0, 1));
int seek = 100 * 4;
sine.Position = seek;
Assert.AreEqual(sine.Position, seek);
long bytesRead = StreamUtil.ReadAllAndCount(sine);
Assert.AreEqual(sine.Length - seek, bytesRead);
}
public void CheckSingleSourceLength()
{
var stream = new SineGeneratorStream(44100, 440, new TimeSpan(0, 0, 1));
var cc = new ConcatenationStream(stream);
// Ensure that the lengths match
Assert.AreEqual(stream.Length, cc.Length);
var bytesRead = StreamUtil.ReadAllAndCount(cc);
// Ensure that the read bytes equals the length
Assert.AreEqual(stream.Length, bytesRead);
}
public void CheckLength()
{
int sampleRate = 44100;
int seconds = 1;
long expectedLength = sampleRate * seconds * 4; // 4 bytes per 32bit ieee sample
var sine = new SineGeneratorStream(sampleRate, 440, new TimeSpan(0, 0, seconds));
Assert.AreEqual(expectedLength, sine.Length);
long bytesRead = StreamUtil.ReadAllAndCount(sine);
Assert.AreEqual(expectedLength, bytesRead);
}
public void CheckSingleSourceSeeking()
{
var stream = new SineGeneratorStream(44100, 440, new TimeSpan(0, 0, 1));
var cc = new ConcatenationStream(stream);
int seek = 200 * stream.SampleBlockSize;
cc.Position = seek;
// Ensure that the position is correct
Assert.AreEqual(seek, cc.Position);
var bytesRead = StreamUtil.ReadAllAndCount(cc);
// Ensure that the expected remaining bytes match the seek position
Assert.AreEqual(cc.Length - seek, bytesRead);
}
