public void Convert()
{
var pepsi = Engine.AssetLoader.Get <AudioAsset>("Sounds/pepsi.wav");
int pepsiByteSize = pepsi.SoundData.Length * 4;
var copy = new byte[pepsiByteSize];
CopyToByteBuffer(pepsi, copy);
AudioUtil.ConvertFormat(pepsi.Format, new AudioFormat(8, false, 2, 44100), ref copy);
Assert.Equal(copy.Length, pepsiByteSize / 4); // Same number of samples as sample rate is the same, but bps is 4 times less
copy = new byte[pepsiByteSize];
CopyToByteBuffer(pepsi, copy);
AudioUtil.ConvertFormat(pepsi.Format, new AudioFormat(16, false, 2, 48000), ref copy);
float ratio = 48000f / pepsi.Format.SampleRate;
Assert.Equal(copy.Length, (int)(pepsiByteSize / 2) * ratio); // divide by 2 because 16bps
var money = Engine.AssetLoader.Get <AudioAsset>("Sounds/money.wav");
int moneyByteSize = money.SoundData.Length * 4;
copy = new byte[moneyByteSize];
CopyToByteBuffer(money, copy);
AudioUtil.ConvertFormat(money.Format, new AudioFormat(16, true, 2, 48000), ref copy); // isFloat is intentionally true. (and invalid here)
ratio = 48000f / money.Format.SampleRate;
Assert.Equal(copy.Length, (int)(moneyByteSize * ratio)); // multiplied by 2 because going from mono to stereo, bps is twice less though
}
public void StreamConvert()
{
var pepsi = Engine.AssetLoader.Get <AudioAsset>("Sounds/pepsi.wav");
var format = new AudioFormat(32, true, 2, 48000);
var copy = new byte[pepsi.SoundData.Length * 4];
CopyToByteBuffer(pepsi, copy);
AudioUtil.ConvertFormat(pepsi.Format, format, ref copy);
var testTasks = new List <Task>();
for (var io = 0; io < 5; io++)
{
testTasks.Add(Task.Run(() =>
{
var streamer = new AudioConverter(pepsi.Format, pepsi.SoundData);
var segmentConvert = new List <byte>();
int framesGet = new Random().Next(1, 500);
Engine.Log.Info($"StreamConvert has chosen {framesGet} for its poll size.", TestRunnerLogger.TestRunnerSrc);
var minutesTimeout = 2;
DateTime start = DateTime.Now;
var playHead = 0;
while (DateTime.Now.Subtract(start).TotalMinutes < minutesTimeout) // timeout
{
var spanData = new Span <byte>(new byte[framesGet * format.FrameSize]);
int samplesAmount = streamer.GetSamplesAtByte(format, playHead, framesGet, spanData);
if (samplesAmount == 0)
{
break;
}
playHead += samplesAmount;
Assert.True(spanData.Length >= samplesAmount * format.SampleSize);
segmentConvert.AddRange(spanData.Slice(0, samplesAmount * format.SampleSize).ToArray());
}
if (DateTime.Now.Subtract(start).TotalMinutes >= minutesTimeout)
{
Engine.Log.Info("StreamConvert timeout.", TestRunnerLogger.TestRunnerSrc);
}
Assert.Equal(segmentConvert.Count, copy.Length);
// V No longer true due to floating point precision.
//for (var i = 0; i < copy.Length; i++)
//{
// Assert.Equal(copy[i], segmentConvert[i]);
//}
}));
}
Task.WaitAll(testTasks.ToArray());
testTasks.Clear();
var money = Engine.AssetLoader.Get <AudioAsset>("Sounds/money.wav");
copy = new byte[money.SoundData.Length * 4];
CopyToByteBuffer(money, copy);
AudioUtil.ConvertFormat(money.Format, format, ref copy);
for (var io = 0; io < 5; io++)
{
testTasks.Add(Task.Run(() =>
{
var streamer = new AudioConverter(money.Format, money.SoundData);
var segmentConvert = new List <byte>();
int framesGet = new Random().Next(1, 500);
Engine.Log.Info($"StreamConvert (Mono) has chosen {framesGet} for its poll size.", TestRunnerLogger.TestRunnerSrc);
DateTime start = DateTime.Now;
int playHead = 0;
while (DateTime.Now.Subtract(start).TotalMinutes < 1f) // timeout
{
var data = new byte[framesGet * format.FrameSize];
var spanData = new Span <byte>(data);
int sampleAmount = streamer.GetSamplesAtByte(format, playHead, framesGet, spanData);
if (sampleAmount == 0)
{
break;
}
playHead += sampleAmount;
Assert.True(data.Length >= sampleAmount * format.SampleSize);
segmentConvert.AddRange(spanData.Slice(0, sampleAmount * format.SampleSize).ToArray());
}
Assert.Equal(segmentConvert.Count, copy.Length);
// V No longer true due to floating point precision.
//for (var i = 0; i < copy.Length; i++)
//{
// Assert.Equal(copy[i], segmentConvert[i]);
//}
}));
}
Task.WaitAll(testTasks.ToArray());
}