public void G711ComparisonTest()
{
for (int i = short.MinValue; i <= short.MaxValue; i++)
{
Assert.AreEqual(G711.LinearToULaw((byte)i), G711.LinearToULawFast((byte)i));
}
for (int i = byte.MinValue; i <= byte.MaxValue; i++)
{
Assert.AreEqual(G711.ULawToLinear((byte)i), G711.ULawToLinearFast((byte)i));
}
}
public void G711ULawToLinearPerformanceComparison()
{
const int innerIterations = 10000;
var input = new byte[_audioFormat.SamplesPerFrame];
var rnd = new Random();
for (int i = 0; i < input.Length; i++)
{
input[i] = (byte)rnd.Next(byte.MinValue, byte.MaxValue);
}
var calculationElapsed = new TimeSpan();
var lookupElapsed = new TimeSpan();
for (int i = 0; i < 10; i++)
{
var start = DateTime.Now;
for (int j = 0; j < innerIterations; j++)
{
foreach (byte k in input)
{
var encoded = G711.ULawToLinear(k);
}
}
calculationElapsed += DateTime.Now - start;
start = DateTime.Now;
for (int j = 0; j < innerIterations; j++)
{
foreach (byte k in input)
{
var encoded = G711.ULawToLinearFast(k);
}
}
lookupElapsed += DateTime.Now - start;
}
ClientLogger.Debug("CalculationElapsed: {0}; LookupElapsed: {1}", calculationElapsed.TotalMilliseconds, lookupElapsed.TotalMilliseconds);
}