public void ReadMonoFromFileTest()
{
using (BassAudioService bass = new BassAudioService())
{
string tempFile = string.Format(@"{0}\{1}", Path.GetTempPath(), "0.wav");
bass.RecodeFileToMonoWave(PathToMp3, tempFile, 5512);
float[] samples = bass.ReadMonoFromFile(PathToMp3, SampleRate);
FileInfo info = new FileInfo(tempFile);
long expectedSize = info.Length - WaveHeader;
long actualSize = samples.Length * (BitsPerSample / 8);
Assert.AreEqual(expectedSize, actualSize);
}
}
public void ComparePreStoredSameplesWithCurrentlyReadAudioSamples()
{
BinaryFormatter serializer = new BinaryFormatter();
using (Stream stream = new FileStream(PathToSamples, FileMode.Open, FileAccess.Read))
{
float[] samples = (float[])serializer.Deserialize(stream);
using (BassAudioService bassAudioService = new BassAudioService())
{
float[] readSamples = bassAudioService.ReadMonoFromFile(PathToMp3, SampleRate);
Assert.AreEqual(samples.Length, readSamples.Length);
for (int i = 0; i < samples.Length; i++)
{
Assert.IsTrue(Math.Abs(samples[i] - readSamples[i]) < 0.0000001);
}
}
}
}
public void CompareReadingFromASpecificPartOfTheSong()
{
const int SecondsToRead = 10;
const int StartAtSecond = 20;
const int AcceptedError = 5;
BinaryFormatter serializer = new BinaryFormatter();
using (Stream stream = new FileStream(PathToSamples, FileMode.Open, FileAccess.Read))
{
float[] samples = (float[])serializer.Deserialize(stream);
float[] subsetOfSamples = GetSubsetOfSamplesFromFullSong(samples, SecondsToRead, StartAtSecond);
using (BassAudioService bassAudioService = new BassAudioService())
{
float[] readSamples = bassAudioService.ReadMonoFromFile(PathToMp3, SampleRate, SecondsToRead, StartAtSecond);
Assert.AreEqual(subsetOfSamples.Length, readSamples.Length);
Assert.IsTrue(Math.Abs(subsetOfSamples.Sum(s => Math.Abs(s)) - readSamples.Sum(s => Math.Abs(s))) < AcceptedError, "Seek is working wrong!");
}
}
}
